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Pasciucco E, Pasciucco F, Iannelli R, Pecorini I. A Fenton-based approach at neutral and un-conditioned pH for recalcitrant COD removal in tannery wastewater: Experimental test and sludge characterization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:172070. [PMID: 38554952 DOI: 10.1016/j.scitotenv.2024.172070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/11/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
The combination of raw animal skin manufacturing processes involves the use of large amounts of chemicals, resulting in the generation of complex and highly polluted tannery wastewater. In this context, the high concentration of chloride in tannery wastewater represents a crucial bottleneck. Indeed, sodium chloride, commonly used in tannery industry to prevent skin rot, increases the concentration of chlorides up to 50 %. At the same time, most of the advanced oxidation processes usually employed in tannery wastewater treatment to remove recalcitrant COD involve the use of conditioning agents, thus increasing the overall concentration of chlorides in the treated effluent. The aim of this study was to evaluate the electrochemical peroxidation process (ECP) efficiency in the treatment of tannery wastewater without changing pH, to improve Fenton technology by avoiding the use of chemicals. The influence of different electric currents on COD and color removal was investigated. The characterization of the produced sludge was conducted through FTIR, SEM and XRD analysis, exploring the morphology and composition of precipitate, depending on the applied current. Although an electrical current of 750 mA yields the highest COD and color removal efficiency (69.7 % and 97.8 %, respectively), 500 mA can be considered the best compromise because of energy consumptions. Iron oxides and hydroxides were generated during the ECP process, playing the role of coagulants through the absorption of organic and inorganic contaminants. The consumption of energy increased as a function of time and applied current; however, cost analysis showed that the electrodes contributed the most to the total cost of the process. In authors' knowledge, the application of ECP process as a tertiary treatment for the removal of recalcitrant COD in tannery wastewater represents a novelty in the literature and the results obtained can be considered as the basis for scaling up the process in future research.
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Affiliation(s)
- Erika Pasciucco
- Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, Via C.F. Gabba 22, Pisa, Tuscany 56122, Italy.
| | - Francesco Pasciucco
- Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, Via C.F. Gabba 22, Pisa, Tuscany 56122, Italy.
| | - Renato Iannelli
- Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, Via C.F. Gabba 22, Pisa, Tuscany 56122, Italy.
| | - Isabella Pecorini
- Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, Via C.F. Gabba 22, Pisa, Tuscany 56122, Italy.
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2
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Li L, Guo J, Zheng K, Heng H, Zhang Y, Xie C, Yin M, Zhou B. MoS 2-mediated active hydrogen modulation to boost Fe 2+ regeneration in solar-driven electro-Fenton process. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134274. [PMID: 38608587 DOI: 10.1016/j.jhazmat.2024.134274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024]
Abstract
The sluggish kinetics of Fe2+ regeneration seriously hinders the performance of Fenton process. However, the conventional Fenton system excessively stifle hydrogen-producing reactions, ignoring the significance of active hydrogen (H*) in Fe3+ reduction. Herein, a strategy of H* modulation is developed by decorating molybdenum disulfide (MoS2) on a graphite felt (GF) cathode to boost Fe2+ regeneration in solar-driven electro-Fenton (SEF) process. With MoS2 regulation, moderately dispersed MoS2 on GF can serve as a bifunctional cathode, where the H* and hydrogen peroxide (H2O2) are simultaneously generated through H+ reduction and O2 reduction, respectively. The in-situ generated H2O2 can trigger Fenton reactions with Fe2+, while the H* with robust reducing potential can significantly expedite Fe3+ reduction, consequently enhancing the HO• production. Both DFT calculations and EPR experiments confirm that H* can be activated via MoS2 decoration. The results show that Fe2+ concentration in the MoS2 @GF-SEF system remains at 15.74 mg/L (56.21%) after 6 h, which is 17.89 times that of the GF-SEF system. Moreover, the HO• content and organics degradation rate in the MoS2 @GF-SEF are 3.61 and 5.30 times those of the GF-SEF, respectively. This study provides a practical cathode strategy of H* modulation to enhance HO• production and electro-Fenton process. ENVIRONMENTAL IMPLICATION: Boosting Fe2+ regeneration is of great value for the Electro-Fenton process. Herein, report a strategy to achieve this goal based on a MoS2 @GF cathode. Remarkably, the MoS2 @GF system exhibits exceptional efficiency for both various refractory organic compounds with environmentally hazardous effects and sterilization aspects, which can also work over a wide range of pH values (3-11). Specially, this system is driven only by solar energy. These characteristics make the electro-Fenton system more suitable for practical wastewater treatment.
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Affiliation(s)
- Linsen Li
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, PR China.
| | - Jiaqing Guo
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, PR China
| | - Kun Zheng
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, PR China
| | - Huiqi Heng
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, PR China
| | - Yan Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China; Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China.
| | - Chaoyue Xie
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Mingyuan Yin
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, PR China
| | - Baoxue Zhou
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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3
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Brillas E, Oliver R. Development of persulfate-based advanced oxidation processes to remove synthetic azo dyes from aqueous matrices. CHEMOSPHERE 2024; 355:141766. [PMID: 38527631 DOI: 10.1016/j.chemosphere.2024.141766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 03/27/2024]
Abstract
Azo dyes are largely used in many industries and discharged in large volumes of their effluents into the aquatic environment giving rise to non-esthetic pollution and health-risk problems. Due to the high stability of azo dyes in ambient conditions, they cannot be abated in conventional wastewater treatment plants. Over the last fifteen years, the decontamination of dyeing effluents by persulfate (PS)-based advanced oxidation processes (AOPs) has received a great attention. In these methods, PS is activated to be decomposed into sulfate radical anion (SO4•-), which is further partially hydrolyzed to hydroxyl radical (•OH). Superoxide ion (O2•-) and singlet oxygen (1O2) can also be produced as oxidants. This review summarizes the results reported for the discoloration and mineralization of synthetic and real waters contaminated with azo dyes covering up to November 2023. PS activation with iron, non-iron transition metals, and carbonaceous materials catalysts, heat, UVC light, photocatalysis, photodegradation with iron, electrochemical and related processes, microwaves, ozonation, ultrasounds, and other processes is detailed and analyzed. The principles and characteristics of each method are explained with special attention to the operating variables, the different oxidizing species generated yielding radical and non-radical mechanisms, the addition of inorganic anions and natural organic matter, the aqueous matrix, and the by-products identified. Finally, the overall loss of toxicity or partial detoxification of treated azo dye solutions during the PS-based AOPs is discussed.
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Affiliation(s)
- Enric Brillas
- Departament de Ciència de Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcclona, Spain.
| | - Ramon Oliver
- Departament d'Enginyeria Químia, Universitat Politècnica de Catalunya, Avinguda Eduard Maristany16, edifici I, segona planta, Barcelona, Spain.
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4
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Brião GDV, da Costa TB, Antonelli R, Costa JM. Electrochemical processes for the treatment of contaminant-rich wastewater: A comprehensive review. CHEMOSPHERE 2024; 355:141884. [PMID: 38575083 DOI: 10.1016/j.chemosphere.2024.141884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/22/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Global water demand and environmental concerns related to climate change require industries to develop high-efficiency wastewater treatment methods to remove pollutants. Likewise, toxic pollutants present in wastewater negatively affect the environment and human health, requiring effective treatment. Although conventional treatment processes remove carbon and nutrients, they are insufficient to remove pharmaceuticals, pesticides, and plasticizers. Electrochemical processes effectively remove pollutants from wastewater through the mineralization of non-biodegradable pollutants with consequent conversion into biodegradable compounds. Its advantages include easy operation, versatility, and short reaction time. In this way, this review initially provides a global water scenario with a view to the future. It comprises global demand, treatment methods, and pollution of water resources, addressing various contaminants such as heavy metals, nutrients, organic compounds, and emerging contaminants. Subsequently, the fundamentals of electrochemical treatments are presented as well as electrochemical treatments, highlighting the latest studies involving electrocoagulation, electroflocculation, electroflotation, capacitive deionization and its derivatives, eletrodeionization, and electrochemical advanced oxidation process. Finally, the challenges and perspectives were discussed. In this context, electrochemical processes have proven promising and effective for the treatment of water and wastewater, allowing safe reuse practices and purification with high contaminant removal.
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Affiliation(s)
- Giani de Vargas Brião
- Center of Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, Trabalhador São Carlense Ave, 400, São Carlos 13566-590, SP, Brazil
| | | | - Raissa Antonelli
- Department of Chemical Engineering, University of São Paulo, Prof. Luciano Gualberto Ave, tr. 3, 380, São Paulo 05508-010, SP, Brazil
| | - Josiel Martins Costa
- Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom.
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5
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Chen Z, Feng M, Wang Y, Ling X. Comparison of treatment performance and microbial community evolution of typical dye wastewater by different combined processes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 275:116226. [PMID: 38537479 DOI: 10.1016/j.ecoenv.2024.116226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 04/12/2024]
Abstract
The degradation of typical dye wastewater is a focus of research in the printing and dyeing industry. In this study, a combined micro-electrolysis and microbial treatment method was established to treat refractory dye wastewater, and the pivotal factors in the microbial treatment were optimized. In the series and coupled modes, the removal rates of chroma reached 98.75% and 92.50%, and the removal rates of chemical oxygen demand (COD) reached 96.17% and 82.29%, respectively. The high-throughput sequencing results showed that the microbial communities in the microbial system varied at different treatment stages. From the culture stage to the domestication stage, the dominant phylum was Proteobacteria; however, the community abundance of microorganisms decreased. A combination of micro-electrolysis and biological methods can alter the characteristics of the microbial community, increase the number of dominant phyla, and increase the abundance of microorganisms. The degradation effect of the series mode and the overall strengthening effect of micro-electrolysis on the microorganisms were better than those of the coupled mode. In actual wastewater, the maximum removal rates of chroma, COD, total nitrogen (TN), ammonia nitrogen (NH3-N), and total phosphorus (TP) are 97.50%, 98.90%, 94.35%, 93.95%, and 91.17%, respectively. Three-dimensional fluorescence spectrum analysis showed that microbial processes could significantly degrade fluorescent components in wastewater, and methanogenic active enzymes in anaerobic processes could continue to react. The combined process can realize the efficient treatment of toxic dye wastewater by reducing the toxicity of wastewater and efficiently degrading organic matter, which has important guiding significance for the treatment of refractory dye wastewater.
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Affiliation(s)
- Zhihao Chen
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Minquan Feng
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Yibo Wang
- School of Environment and Chemical Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China.
| | - Xiaohui Ling
- School of Environment and Chemical Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
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6
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Jia Y, Li H, Zhao H, Zhang G, Zhang Z, Zhang X, Zhou W. A new strategy for improving the energy efficiency of electro-Fenton: Using N-doped activated carbon cathode with strong Fe(III) adsorption capacity to promote Fe(II) regeneration. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 357:120823. [PMID: 38583380 DOI: 10.1016/j.jenvman.2024.120823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 03/13/2024] [Accepted: 04/01/2024] [Indexed: 04/09/2024]
Abstract
Fe(II) regeneration plays a crucial role in the electro-Fenton process, significantly influencing the rate of ·OH formation. In this study, a method is proposed to improve Fe(II) regeneration through N-doping aimed at enhancing the adsorption capacity of the activated carbon cathode for Fe(III). N-doping not only enriched the pore structure on the surface of activated carbon, providing numerous adsorption sites, but also significantly increased the adsorption energy for Fe(III). Among the types of nitrogen introduced, pyridine-N exhibited the most substantial enhancement effect, followed by pyrrole-N, while graphite-N showed a certain degree of inhibition. Furthermore, N-doping facilitated the adsorption of all forms of Fe(III) by activated carbon. The adsorption and electrosorption rates of the NAC-900 electrode for Fe(III) were 30.33% and 42.36%, respectively. Such modification markedly enhanced the Fe3+/Fe2+ cycle within the electro-Fenton system. The NAC-900 system demonstrated an impressive phenol degradation efficiency of 93.67%, alongside the lowest electricity consumption attributed to the effective "adsorption-reduction" synergy for Fe(III) on the NAC-900 electrode. Compared to the AC cathode electro-Fenton system, the degradation efficiency of the NAC-900 cathode electro-Fenton system at pH = levels ranging from 3 to 5 exceeded 90%; thus, extending the pH applicability of the electro-Fenton process. The degradation efficiency of phenol using the NAC-900 cathode electro-Fenton system in various water matrices approached 90%, indicating robust performance in real wastewater treatment scenarios. This research elucidates the impact of cathodic Fe(III) adsorption on Fe(II) regeneration within the electro-Fenton system, and clarifies the influence of different N- doping types on the cathodic adsorption of Fe(III).
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Affiliation(s)
- Yongying Jia
- School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China
| | - Hongguang Li
- School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China
| | - Haiqian Zhao
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu, 215009, China.
| | - Guole Zhang
- School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China
| | - Zhuangzhuang Zhang
- School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China
| | - Xiaolong Zhang
- School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China
| | - Wei Zhou
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
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7
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Olvera-Vargas H, Selvam S, Veer R, García-Rodríguez O, Mutnuri S, Lefebvre O. A sustainable activated carbon fiber/TiO 2 cathode for the photoelectro-Fenton treatment of pharmaceutical pollutant enalapril. CHEMOSPHERE 2024; 353:141492. [PMID: 38387665 DOI: 10.1016/j.chemosphere.2024.141492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024]
Abstract
In this work, a TiO2-decorated electrode was fabricated by dip coating activated carbon fibers (ACF) with TiO2, which were then used as a cathode for the photoelectro-Fenton (PEF) treatment of the pharmaceutical enalapril, an angiotensin-converting enzyme inhibitor that has been detected in several waterways. The TiO2 coating was found to principally improve the electrocatalytic properties of ACF for H2O2 production via the 2-e- O2 reduction, in turn increasing enalapril degradation by PEF. The effect of the current density on the mineralization of enalapril was evaluated and the highest TOC removal yield (80.5% in 3 h) was obtained at 8.33 mA cm-2, in the presence of 0.5 mmol L-1 of Fe2+ catalyst. Under those conditions, enalapril was totally removed within the first 10 min of treatment with a rate constant k = 0.472 min-1. In contrast, uncoated ACF only achieved 60% of TOC removal in 3 h at 8.33 mA cm-2. A degradation pathway for enalapril mineralization is proposed, based on the degradation by-products identified during treatment. Overall, the results demonstrate the promises of TiO2 cathodes for PEF, a strategy that has often been overlooked in favor of photoelectrocatalysis (PEC) based on TiO2-modified photoanodes.
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Affiliation(s)
- Hugo Olvera-Vargas
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore; Instituto de Energías Renovables, Universidad Nacional Autónoma de México (IER-UNAM), Priv. Xochicalco S/N, Col. Centro, Temixco, Morelos, 62580, Mexico.
| | - Suthan Selvam
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore
| | - Rishikesh Veer
- Water Sanitation and Hygiene Laboratory, BITS Pilani, KK Birla Goa Campus, NH 17 B, Zuarinagar, Goa, 403726, India
| | - Orlando García-Rodríguez
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore; NUS Environmental Research Institute, National University of Singapore, #02-03, T-Lab Building 5A Engineering Drive 1, 117411, Singapore
| | - Srikanth Mutnuri
- Water Sanitation and Hygiene Laboratory, BITS Pilani, KK Birla Goa Campus, NH 17 B, Zuarinagar, Goa, 403726, India
| | - Olivier Lefebvre
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore; NUS Environmental Research Institute, National University of Singapore, #02-03, T-Lab Building 5A Engineering Drive 1, 117411, Singapore.
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8
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Dhakshinamoorthy A, Li Z, Yang S, Garcia H. Metal-organic framework heterojunctions for photocatalysis. Chem Soc Rev 2024; 53:3002-3035. [PMID: 38353930 DOI: 10.1039/d3cs00205e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Heterojunctions combining two photocatalysts of staggered conduction and valence band energy levels can increase the photocatalytic efficiency compared to their individual components. This activity enhancement is due to the minimization of undesirable charge recombination by the occurrence of carrier migration through the heterojunction interface with separated electrons and holes on the reducing and oxidizing junction component, respectively. Metal-organic frameworks (MOFs) are currently among the most researched photocatalysts due to their tunable light absorption, facile charge separation, large surface area and porosity. The present review summarizes the current state-of-the-art in MOF-based heterojunctions, providing critical comments on the construction of these heterostructures. Besides including examples showing the better performance of MOF heterojunctions for three important photocatalytic processes, such as hydrogen evolution reaction, CO2 photoreduction and dye decolorization, the focus of this review is on describing synthetic procedures to form heterojunctions with MOFs and on discussing the experimental techniques that provide evidence for the operation of charge migration between the MOF and the other component. Special attention has been paid to the design of rational MOF heterojunctions with small particle size and controlled morphology for an appropriate interfacial contact. The final section summarizes the achievements of the field and provides our views on future developments.
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Affiliation(s)
- Amarajothi Dhakshinamoorthy
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, Valencia 46022, Spain.
- School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Zhaohui Li
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Sihai Yang
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK
| | - Hermenegildo Garcia
- Departamento de Química/Instituto Universitario de Tecnología Química (CSIC-UPV), Universitat Politècnica de València, Avda. de los Naranjos s/n, 46022 Valencia, Spain.
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9
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Qin W, Dong Y, Jiang H, Loh WH, Imbrogno J, Swenson TM, Garcia-Rodriguez O, Lefebvre O. A new approach of simultaneous adsorption and regeneration of activated carbon to address the bottlenecks of pharmaceutical wastewater treatment. WATER RESEARCH 2024; 252:121180. [PMID: 38301523 DOI: 10.1016/j.watres.2024.121180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 02/03/2024]
Abstract
This study proposes a sustainable approach for hard-to-treat wastewater using sintered activated carbon (SAC) both as an adsorption filter and as an electrode, allowing its simultaneous electrochemical regeneration. SAC improves the activated carbon (AC) particle contact and thus the conductivity, while maintaining optimal liquid flow. The process removed 87 % of total organic carbon (TOC) from real high-load (initial TOC of 1625 mg/L) pharmaceutical wastewater (PWW), generated during the manufacturing of azithromycin, in 5 h, without external input of chemicals other than catalytic amounts of Fe(II). Kinetic modelling indicated that adsorption was the dominant process, while concomitant electrochemical degradation of complex organics first converted them to short-chain acids, followed by their full mineralization. In-situ electrochemical regeneration of SAC, taking place at the same time as the treatment, is a key feature of our process, enhancing its performance and ensuring its stable operation over time, while eliminating cleaning downtimes altogether. The energy consumption of this innovative process was remarkably low at 8.0×10-3 kWh gTOC-1. This study highlights the potential of SAC for treating hard-to-treat effluents by concurrent adsorption and mineralization of organics.
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Affiliation(s)
- Weichen Qin
- Department of Civil and Environmental Engineering, Centre for Water Research, National University of Singapore, Engineering Drive 2, 117576, Singapore; Hwa Chong Institution (College), 661 Bukit Timah Road, 269734, Singapore
| | - Yuling Dong
- Department of Civil and Environmental Engineering, Centre for Water Research, National University of Singapore, Engineering Drive 2, 117576, Singapore; Hwa Chong Institution (College), 661 Bukit Timah Road, 269734, Singapore
| | - Huan Jiang
- Department of Civil and Environmental Engineering, Centre for Water Research, National University of Singapore, Engineering Drive 2, 117576, Singapore
| | - Wei Hao Loh
- Department of Civil and Environmental Engineering, Centre for Water Research, National University of Singapore, Engineering Drive 2, 117576, Singapore; NUS Environmental Research Institute, National University of Singapore, #02-03, T-Lab Building 5A Engineering Drive 1, 117411, Singapore
| | - Joseph Imbrogno
- Chemical Research & Development, Pfizer Inc., 280 Shennecossett Rd, Groton, CT 06340, United States
| | - Tim M Swenson
- Chemical Research & Development, Pfizer Inc., 280 Shennecossett Rd, Groton, CT 06340, United States
| | - Orlando Garcia-Rodriguez
- Department of Civil and Environmental Engineering, Centre for Water Research, National University of Singapore, Engineering Drive 2, 117576, Singapore; NUS Environmental Research Institute, National University of Singapore, #02-03, T-Lab Building 5A Engineering Drive 1, 117411, Singapore.
| | - Olivier Lefebvre
- Department of Civil and Environmental Engineering, Centre for Water Research, National University of Singapore, Engineering Drive 2, 117576, Singapore; NUS Environmental Research Institute, National University of Singapore, #02-03, T-Lab Building 5A Engineering Drive 1, 117411, Singapore.
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10
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Dubowski Y, Alfiya Y, Gilboa Y, Sabach S, Friedler E. A combined approach of electrodialysis pretreatment and vacuum UV for removing micropollutants from natural waters. WATER RESEARCH 2024; 251:121152. [PMID: 38277830 DOI: 10.1016/j.watres.2024.121152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/24/2023] [Accepted: 01/15/2024] [Indexed: 01/28/2024]
Abstract
Advanced oxidation processes (AOPs) augment traditional water treatment methods, enhancing the removal of persistent contaminants. Efficiency of AOPs that utilize UV radiation for oxidants generation (e.g., ·OH) is reduced in water matrices that contain substants that may act as inner UV filters and/or scavengers for the generated radicals. Among such interfering compounds are major inorganic ions and dissolved organic matter that are naturally present in realistic waters. Thus, to improve AOPs efficiency it is desirable to separate the target pollutants from these natural species before treatment. Here the potential of electrodialysis as such pretreatment was investigated. The impact of this pretreatment on photo-oxidation of the pharmaceutical carbamazepine (CBZ) under VUV (λ<200 nm) irradiation, which yields ·OH generation via water homolysis, was tested in different water matrices. The obtained results indicate that in all tested solutions: Deionized water, groundwater, surface water, and treated wastewater, the addition of electrodialysis pretreatment successfully separated the target micropollutant CBZ from the major natural ions and to some extend the NOM, resulting faster degradation rates of CBZ and its transformation products in the following VUV-based AOP. Energy cost calculations indicated that addition of this pretreatment step reduces the overall energy demand of the system (i.e., energy consumption for the electrodialysis step was smaller than the energy gained by reducing the required VUV irradiation dose).
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Affiliation(s)
- Yael Dubowski
- Faculty of Civil and Environmental Engineering, Technion 32000, Israel.
| | - Yuval Alfiya
- Faculty of Civil and Environmental Engineering, Technion 32000, Israel
| | - Yael Gilboa
- Faculty of Civil and Environmental Engineering, Technion 32000, Israel
| | - Sara Sabach
- Faculty of Civil and Environmental Engineering, Technion 32000, Israel
| | - Eran Friedler
- Faculty of Civil and Environmental Engineering, Technion 32000, Israel
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11
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Kamalesh R, Karishma S, Saravanan A. Progress in environmental monitoring and mitigation strategies for herbicides and insecticides: A comprehensive review. CHEMOSPHERE 2024; 352:141421. [PMID: 38360415 DOI: 10.1016/j.chemosphere.2024.141421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/24/2024] [Accepted: 02/07/2024] [Indexed: 02/17/2024]
Abstract
Herbicides and insecticides are pervasively applied in agricultural sector to increase the yield by controlling or eliminating bug vermin and weeds. Although, resistance development occurs, direct and indirect impact on human health and ecosystem is clearly visible. Normally, herbicides and pesticides are water soluble in nature; accordingly, it is hard to decrease their deadliness and to dis-appear them from the environment. They are profoundly specific, and considered as poisonous to various peoples in agricultural and industrial work places. In order to substantially reduce the harmful impacts, it is crucial to thoroughly examine the detection and mitigation measures for these compounds. The primary objective of this paper is to provide an overview of various herbicide and pesticide detection techniques and associated remedial techniques. A short summary on occurrence and harmful effects of herbicides/insecticides on ecosystem has been included to the study. The conventional and advanced, rapid techniques for the detection of insecticides and herbicides were described in detail. A detailed overview on several mitigation strategies including advanced oxidation, adsorption, electrochemical process, and bioremediation as well as the mechanism behind the strategic approaches to reduce the effects of growing pesticide pollution has been emphasized. Regardless of the detection techniques and mitigation strategies, the recent advances employed, obstacles, and perspectives have been discussed in detail.
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Affiliation(s)
- R Kamalesh
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - S Karishma
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - A Saravanan
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
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12
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Li Q, Fang X, Jin L, Sun X, Huang H, Ma R, Zhao H, Ren H. Scientometric analysis of electrocatalysis in wastewater treatment: today and tomorrow. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:19025-19046. [PMID: 38374500 DOI: 10.1007/s11356-024-32472-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 02/09/2024] [Indexed: 02/21/2024]
Abstract
Electrocatalytic methods are valuable tools for addressing water pollution and scarcity, offering effective pollutant removal and resource recovery. To investigate the current status and future trends of electrocatalysis in wastewater treatment, a detailed analysis of 9417 papers and 4061 patents was conducted using scientometric methods. China emerged as the leading contributor to publications, and collaborations between China and the USA have emerged as the most frequent partnerships. Primary article co-citation clusters focused on oxygen evolution reaction and electrochemical oxidation, transitioning towards advanced oxidation processes ("persulfate activation"), and electrocatalytic reduction processes ("nitrate reduction"). Bifunctional catalysts, theoretical calculations, electrocatalytic combination technologies, and emerging contaminants were identified as current research hotspots. Patent analysis revealed seven types of electrochemical technologies, which were compared using SWOT analysis, highlighting electrochemical oxidation as prominent. The technological evolution presented the pathway of electro-Fenton to combined electrocatalytic technologies with biochemical processes, and finally to coupling with electrocoagulation. Standardized evaluation systems, waste resource utilization, and energy conservation were important directions of innovation in electrocatalytic technologies. Overall, this study provided a reference for researchers to understand the framework of electrocatalysis in wastewater treatment and also shed light on potential avenues for further innovation in the field.
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Affiliation(s)
- Qianqian Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Xiaoya Fang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Lili Jin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Xiangzhou Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Hui Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China.
| | - Rui Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Han Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Hongqiang Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163, Xianlin Avenue, Qixia District, Nanjing, 210023, Jiangsu, People's Republic of China
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Clemente E, Domingues E, Quinta-Ferreira RM, Leitão A, Martins RC. Solar photo-Fenton and persulphate-based processes for landfill leachate treatment: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169471. [PMID: 38145668 DOI: 10.1016/j.scitotenv.2023.169471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/15/2023] [Accepted: 12/16/2023] [Indexed: 12/27/2023]
Abstract
Landfilling is the most usual solid waste management strategy for solid residues disposal. However, it entails several drawbacks such as the generation of landfill leachate that seriously threaten human life and the environment due to their toxicity and carcinogenic character. Among various technologies, solar photo-Fenton and sulphate-based processes have proven to be suitable for the treatment of these polluted streams. This review critically summarises the last three decades of studies in this field. It is found that the solar homogeneous photo-Fenton process should be preferably used as a pre- and post-treatment of biological technologies and as a standalone treatment for young, medium, and mature leachates, respectively. Studies on heterogeneous solar photo-Fenton process are lacking so that this technology may be scaled-up for industrial applications. Sulphate radicals are attractive for removing both COD and ammonia. However, no study has been reported on solar sulphate activation for landfill leachate treatment. This review discusses the main advances and challenges on treating landfill leachate through solar AOPs, it compares solar photo-Fenton and solar persulphate-based treatments, indicates the future research directions and contributes for a better understanding of these technologies towards sustainable treatment of landfill leachate in sunny and not-so-sunny regions.
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Affiliation(s)
- E Clemente
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal; LESRA - Laboratory of Separation, Reaction and Environmental Engineering, Faculty of Engineering, Agostinho Neto University, Av. Ho Chi Min no 201, Luanda, Angola
| | - E Domingues
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal
| | - R M Quinta-Ferreira
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal
| | - A Leitão
- LESRA - Laboratory of Separation, Reaction and Environmental Engineering, Faculty of Engineering, Agostinho Neto University, Av. Ho Chi Min no 201, Luanda, Angola
| | - R C Martins
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal.
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14
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Yu Y, Wang S, Yu P, Wang D, Hu B, Zheng P, Zhang M. A bibliometric analysis of emerging contaminants (ECs) (2001-2021): Evolution of hotspots and research trends. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168116. [PMID: 37884150 DOI: 10.1016/j.scitotenv.2023.168116] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/05/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
Emerging contaminants (ECs) have attracted increasing attention in the past two decades because of their ubiquitous existence and high environmental risk. Understanding the progress of research and the evolution of hot topics is critical. This study provides a bibliometric review, along with a quantitative trend analysis of approximately 8000 publication records dated from 2001 to 2021. Wider distribution in various subjects was discovered in terms of publication numbers, indicating a strong tendency for EC research to become an interdisciplinary topic. Visualization of term co-occurrence analysis revealed that the ECs study went through three stages over time: identification and detection, traceability and risk, and process and control. Quantitative trend analysis revealed that antibiotics, microplastics, endocrine disrupting chemicals (EDCs), per/poly-fluoroalkyl substances (PFAS), pesticides, heavy metals, and nanoparticles are attracting increasing attention, whereas conventional pharmaceuticals, persistent organic pollutants, and materials such as benzotriazole, diclofenac, bisphenol A, carbamazepine, triclosan, and titanium dioxide exhibit a downward trend. PFAS and EDCs are considered potential future core hotspots for the hysteretic rise in research attention compared with conventional ECs. Furthermore, analysis of research linkage and the developing stages of ECs could be possible approach to determine the evolution of hotspots in ECs study. This study provides objective and comprehensive insights into the research landscape of ECs, which may shed light on future developmental directions for researchers interested in this field.
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Affiliation(s)
- Yang Yu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Siyu Wang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore
| | - Pingfeng Yu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China; Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China
| | - Dongsheng Wang
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China; Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China
| | - Baolan Hu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China
| | - Ping Zheng
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China
| | - Meng Zhang
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China; Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China.
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15
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Dang Q, Zhang W, Liu J, Wang L, Wu D, Wang D, Lei Z, Tang L. Bias-free driven ion assisted photoelectrochemical system for sustainable wastewater treatment. Nat Commun 2023; 14:8413. [PMID: 38110421 PMCID: PMC10728197 DOI: 10.1038/s41467-023-44155-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 12/01/2023] [Indexed: 12/20/2023] Open
Abstract
Photoelectrochemical (PEC) systems have emerged as a prominent renewable energy-based technology for wastewater treatment, offering sustainable advantages such as eliminating dependence on fossil fuels or grid electricity compared to traditional electrochemical treatment methods. However, previous PEC systems often overlook the potential of ions present in wastewater as an alternative to externally applied bias voltage for enhancing carrier separation efficiency. Here we report a bias-free driven ion assisted photoelectrochemical (IAPEC) system by integration of an electron-ion acceptor cathode, which leverages its fast ion-electron coupling capability to significantly enhance the separation of electrons and holes at the photoanode. We demonstrate that Prussian blue analogues (PBAs) can serve as robust and reversible electron-ion acceptors that provide reaction sites for photoelectron coupling cations, thus driving the hole oxidation to produce strong oxidant free radicals at photoanode. Our IAPEC system exhibits superior degradation performance in wastewater containing chloride medium. This indicates that, in addition to the cations (e.g., Na+) accelerating the electron transfer rate, the presence of Cl- ions further enhance efficient and sustainable wastewater treatment. This work highlights the potential of utilizing abundant sodium chloride in seawater as a cost-effective additive for wastewater treatment, offering crucial insights into the use of local materials for effective, low-carbon, and sustainable treatment processes.
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Affiliation(s)
- Qi Dang
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, 200444, Shanghai, China
| | - Wei Zhang
- Department of Chemistry, IRIS Adlershof & The Center for the Science of Materials Berlin, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Jiqing Liu
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, 200444, Shanghai, China
| | - Liting Wang
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, 200444, Shanghai, China
| | - Deli Wu
- College of Environmental & Engineering, Tongji University, 200092, Shanghai, China
| | - Dejin Wang
- School of Resources and Environment, Anqing Normal University, 246011, Anqing, China
| | - Zhendong Lei
- College of Environmental & Engineering, Tongji University, 200092, Shanghai, China.
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
| | - Liang Tang
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, 200444, Shanghai, China.
- School of Resources and Environment, Anqing Normal University, 246011, Anqing, China.
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16
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Pinto VL, Cervantes TNM, Soto PC, Sarto G, Bessegato GG, Almeida LCD. Multivariate optimization of methylene blue dye degradation using electro-Fenton process with self-doped TiO 2 nanotube anode. CHEMOSPHERE 2023; 344:140336. [PMID: 37778646 DOI: 10.1016/j.chemosphere.2023.140336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
This paper reports the optimization of the electro-Fenton (EF) process using different anode materials for the degradation of Methylene Blue (MB) dye as a model compound. The cathode used was an air-diffusion PTFE, while three different anode materials (Pt, DSA, and self-doped TiO2 nanotubes - SD-TNT) were tested individually. A full factorial design (FFD) with a central point combined with response surface methodology (RSM) was employed to optimize the experimental variables, including solution pH, applied current, and anode material. The optimized EF conditions involved a pH of 4.0, a current of 100 mA, and an SD-TNT anode for 120 min of electrolysis. Under these conditions, the MB solution achieved complete decolorization and 45% of total organic carbon (TOC) removal after 120 min of EF treatment. The findings indicate that the hydroxyl radical (•OH) plays a crucial role as the primary oxidizing agent in the EF process. The decay of MB followed pseudo-first-order kinetics, reflecting a consistent formation of •OH radicals that effectively attacked the MB dye and its subproducts during mineralization. Moreover, the EF process exhibited superior performance in terms of energy consumption (EC) and mineralization current efficiency (ECM) in the initial treatment stages, while the presence of recalcitrant by-products and loss of anode self-doping impacted performance in the later stages. The optimized EF conditions and the understanding gained from this study contribute to the advancement of sustainable wastewater treatment strategies for the removal of organic dyes.
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Affiliation(s)
- Victor L Pinto
- Laboratory of Environmental Electrochemistry - LabEA, Department of Chemistry, Londrina State University (UEL), PR-445, Km 380, 86057-970, Londrina, PR, Brazil
| | - Thiago N M Cervantes
- Laboratory of Environmental Electrochemistry - LabEA, Department of Chemistry, Londrina State University (UEL), PR-445, Km 380, 86057-970, Londrina, PR, Brazil
| | - Pablo C Soto
- Laboratory of Environmental Electrochemistry - LabEA, Department of Chemistry, Londrina State University (UEL), PR-445, Km 380, 86057-970, Londrina, PR, Brazil
| | - Gabrielle Sarto
- Laboratory of Environmental Electrochemistry - LabEA, Department of Chemistry, Londrina State University (UEL), PR-445, Km 380, 86057-970, Londrina, PR, Brazil
| | - Guilherme G Bessegato
- Federal University of Technology - Paraná (UTFPR), Dois Vizinhos Campus, Estrada para Boa Esperança, Km 04, 85660-000, Dois Vizinhos, PR, Brazil; National Institute of Alternative Technologies for Detection, Toxicological Assessment and Removal of Emerging and Radioactive Contaminants (INCT-Datrem), Rua Professor Francisco Degni, 55, 14800-060 Araraquara, São Paulo, Brazil
| | - Lucio C de Almeida
- Laboratory of Environmental Electrochemistry - LabEA, Department of Chemistry, Londrina State University (UEL), PR-445, Km 380, 86057-970, Londrina, PR, Brazil; National Institute of Alternative Technologies for Detection, Toxicological Assessment and Removal of Emerging and Radioactive Contaminants (INCT-Datrem), Rua Professor Francisco Degni, 55, 14800-060 Araraquara, São Paulo, Brazil.
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17
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Clematis D, Skolotneva E, Cademartori D, Panizza M. Impact of catalyst, chelating agent and light irradiation on electro-Fenton performance under not optimal conditions. CHEMOSPHERE 2023; 344:140408. [PMID: 37827461 DOI: 10.1016/j.chemosphere.2023.140408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/09/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
Electro-Fenton is a promising game-changer for distributed wastewater treatments for the removal of recalcitrant compounds that it is possible to find in industrial effluent and looking for a water reuse approach. This electrochemical advanced oxidation process (EAOPs) is able to provide fast removal of organic compounds, like dyes, due to the in-situ H2O2 production and its reaction with Fe2+ to form hydroxyl radicals. The literature clearly reports that this reaction reaches its optimum in acid conditions (pH = 3) and low catalyst concentrations [Fe2+<0.5 mM]. This paper wants to investigate the effects of the shifting from optimal conditions on the removal of reactive black 5 (RB5), treating solutions which contain a higher amount of catalyst and a less acid pH. Textile effluents usually contain also other metals able to act as catalyst for Fenton reaction, like copper. Here its activity has been investigated as well as the possible synergistic effect with Fe2+. The results confirm that copper can enhance RB5 removal, especially in those conditions critical for ferrous cation. In the second part, possible process modifications to overcome the issues introduced by unfavourable operating conditions (pH > 3 and Fe2+ > 0.5 mM) are considered, such as the usage of a chelating agent (EDTA) and the application of a light source. The results show the positive impact of these two system modifications highlighting the possibility to enlarge the application window of electro-Fenton systems.
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Affiliation(s)
- Davide Clematis
- University of Genoa, Department of Civil, Chemical and Environmental Engineering, Via All'Opera Pia 15, 16145, Genova, Italy
| | - Ekaterina Skolotneva
- University of Genoa, Department of Civil, Chemical and Environmental Engineering, Via All'Opera Pia 15, 16145, Genova, Italy
| | - Davide Cademartori
- University of Genoa, Department of Civil, Chemical and Environmental Engineering, Via All'Opera Pia 15, 16145, Genova, Italy
| | - Marco Panizza
- University of Genoa, Department of Civil, Chemical and Environmental Engineering, Via All'Opera Pia 15, 16145, Genova, Italy.
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Sharan S, Khare P, Shankar R, Mishra NK, Tyagi A. Bimetal-oxide (Fe/Co) modified bagasse-waste carbon coated on lead oxide-battery electrode for metronidazole removal. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119104. [PMID: 37793292 DOI: 10.1016/j.jenvman.2023.119104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/17/2023] [Accepted: 09/01/2023] [Indexed: 10/06/2023]
Abstract
Current study covers the preparation and application of a commercial modified lead oxide battery electrode (LBE) in electrochemical oxidation (ECO) of metronidazole (MNZ) in an aqueous phase. Modified electrode is prepared by doping of bimetal-oxide (Fe and Zn) nanoparticles (NPs) & single metal-oxide (Fe/Zn) on bagasse-waste carbon (bwc) which is further coated on LBE. The modified LBE electrode surface was examined for metal-oxide NPs through X-ray diffraction analysis (XRD). Different electrodes are prepared by varying combinations of two metal-oxide based on molar ratio and tested for electrochemical characterization and MNZ removal test. Based on large oxygen evolution potential in a linear sweep volumetry (LSV) analysis and high MNZ removal rate, the best electrode has been represented as Fe1:Co2-bwc/LBE which contains Fe & Co molar ratio of 1:2. Moreover, equilibrium attained at faster rate in degradation process of MNZ, where pseudo first order kinetics of 2.29 × 10-2 min-1 was obtained under optimized condition of (MNZ:100 mg/L, pH:7, CD: 30 mA/cm2 and electrolyte: 0.05 M Na2SO4). Maximum MNZ removal, total organic carbon removal (TOC), mineralization current efficiency (MCE) & energy consumption (EC) of 98.7%, 85.3%, 62.2% & 96.143 kW h/kg-TOC removed are found in 180 min of treatment time for Fe1:Co2-bwc/LBE electrode. Accelerated service life test confirms that the stability of modified electrode is enhanced by 1.5 times compared to pristine LBE. Repeatability test confirms that modified LBE (Fe1:Co2-bwc/LBE) can be utilized up to 3 times.
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Affiliation(s)
- Shambhoo Sharan
- Department of Chemical Engineering, Madan Mohan Malviya University of Technology, Gorakhpur, 273010, Uttar Pradesh, India.
| | - Prateek Khare
- Department of Chemical Engineering, Madan Mohan Malviya University of Technology, Gorakhpur, 273010, Uttar Pradesh, India.
| | - Ravi Shankar
- Department of Chemical Engineering, Madan Mohan Malviya University of Technology, Gorakhpur, 273010, Uttar Pradesh, India.
| | - Navneet Kumar Mishra
- Department of Chemical Engineering, Madan Mohan Malviya University of Technology, Gorakhpur, 273010, Uttar Pradesh, India
| | - Ankit Tyagi
- Department of Chemical Engineering, Indian Institute of Technology Jammu, 181221, India.
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19
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Jennyfer DA, Jose LR, Fiderman MM. Scientific and academic contributions of professor Enric Brillas through an analysis social network analysis and data science. CHEMOSPHERE 2023; 345:140466. [PMID: 37866502 DOI: 10.1016/j.chemosphere.2023.140466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/02/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
This work describes the scientific and academic contributions of Professor Enric Brillas through the analysis of Social Network Analysis and data science. The study examines the research collaborations and co-authorship networks of Professor Brillas, indicating his active engagement and up-to-date collaborations with key co-authors, including Ignasi Sirés and Pere.L. Cabot. The analysis also reveals Professor Brillas' significant research focus on water treatment and related concepts such as oxidation-reduction, Fenton reactions, photoelectro-Fenton, and electrocatalysis. Furthermore, the most cited and recent articles by Professor Brillas are identified and discusses. Overall, the research demonstrates Professor Brillas' notable contributions to the field of electrochemical water treatment and highlights his ongoing research and collaborations in this area.
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Affiliation(s)
- Diaz-Angulo Jennyfer
- Investigación y desarrollo tecnológico en tratamiento de aguas, Modelado de procesos y gestión de residuos, GITAM, Colombia; Laboratorio de simulación y procesos-SIMPROLAB, Turbaco, Colombia
| | - Lara-Ramos Jose
- Laboratorio de simulación y procesos-SIMPROLAB, Turbaco, Colombia; Escuela de Ingeniería Química, Universidad del Valle, Ciudad Universitaria Meléndez-A.A., Cali, 23360, Colombia
| | - Machuca-Martínez Fiderman
- Escuela de Ingeniería Química, Universidad del Valle, Ciudad Universitaria Meléndez-A.A., Cali, 23360, Colombia.
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20
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Larralde-Piña IA, Acuña-Askar K, Villanueva-Rodríguez M, Guzmán-Mar JL, Murillo-Sierra JC, Ruiz-Ruiz EJ. An optimized electro-fenton pretreatment for the degradation and mineralization of a mixture of ofloxacin, norfloxacin, and ciprofloxacin. CHEMOSPHERE 2023; 344:140339. [PMID: 37820878 DOI: 10.1016/j.chemosphere.2023.140339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/18/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
The electro-Fenton process (EFP) is a powerful advanced oxidation process beneficial to treating recalcitrant contaminants, and there has been a continuing interest in combining this technology to enhance the efficiency of conventional wastewater treatment processes. In this work, an optimized EFP process is performed as pretreatment for the degradation and mineralization of three blank fluoroquinolones (FQs) drugs: ofloxacin (OFL), norfloxacin (NOR), and ciprofloxacin (CIP). The optimization of the experiment was carried out using a Box-Behnken experimental design. Faster and complete degradation of the drugs mixture was achieved in 90 min with 61.12 ± 2.0% of mineralization in 180 min, under the optimized conditions: j = 244.0 mA cm-2, [Fe2+] = 0.31 mM, and [FQs] = 87.0 mg L-1. Furthermore, a low toxicity effluent was obtained in 90 min of the experiment, according to bioassay toxicity with Vibrio fischeri. Five short-chain carboxylic acids, including oxalic, maleic, oxamic, formic, and fumaric acids, were detected and quantified, in addition to F- and NO3- inorganic ions. The inhibition of the reactive oxygen species with scavenger proof was also evaluated in this paper.
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Affiliation(s)
- I A Larralde-Piña
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México
| | - K Acuña-Askar
- Universidad Autónoma de Nuevo León (UANL), Facultad de Medicina, Depto. de Microbiología, Monterrey, Nuevo León, C.P. 64460, México
| | - M Villanueva-Rodríguez
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México
| | - J L Guzmán-Mar
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México
| | - J C Murillo-Sierra
- Universidad de Concepción, Facultad de Ciencias Químicas, Edmundo Larenas 129, Concepción, Chile
| | - E J Ruiz-Ruiz
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México.
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He J, Xia S, Li W, Deng J, Lin Q, Zhang L. Resource recovery and valorization of food wastewater for sustainable development: An overview of current approaches. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119118. [PMID: 37769472 DOI: 10.1016/j.jenvman.2023.119118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/05/2023] [Accepted: 08/30/2023] [Indexed: 09/30/2023]
Abstract
The food processing industry is one of the world's largest consumers of potable water. Agri-food wastewater systems consume about 70% of the world's fresh water and cause at least 80% of deforestation. Food wastewater is characterized by complex composition, a wide range of pollutants, and fluctuating water quality, which can cause huge environmental pollution problems if discharged directly. In recent years, food wastewater has attracted considerable attention as it is considered to have great prospects for resource recovery and reuse due to its rich residues of nutrients and low levels of harmful substances. This review explored and compared the sources and characteristics of different types of food wastewater and methods of wastewater treatment. Particular attention was paid to the different methods of resource recovery and reuse of food wastewater. The diversity of raw materials in the food industry leads to different compositional characteristics of wastewater, which determine the choice and efficiency of wastewater treatment methods. Physicochemical methods, and biological methods alone or in combination have been used for the efficient treatment of food wastewater. Current approaches for recycling and reuse of food wastewater include culture substrates, agricultural irrigation, and bio-organic fertilizers, recovery of high-value products such as proteins, lipids, biopolymers, and bioenergy to alleviate the energy crisis. Food wastewater is a promising substrate for resource recovery and reuse, and its valorization meets the current international policy requirements regarding food waste and environment protection, follows the development trend of the food industry, and is also conducive to energy conservation, emission reduction, and economic development. However, more innovative biotechnologies are necessary to advance the effectiveness of food wastewater treatment and the extent of resource recovery and valorization.
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Affiliation(s)
- JinTao He
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - SuXuan Xia
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Wen Li
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China; Hunan Provincial Engineering Technology Research Center of Seasonings Green Manufacturing, China; College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, 210023, Jiangsu, China.
| | - Jing Deng
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - QinLu Lin
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China; College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, 210023, Jiangsu, China.
| | - Lin Zhang
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
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22
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Firoozbakht F, Azimi G, Tangestaninejad S, Hayati P. Effective photocatalytic degradation of amphotericin B and naproxen from aqueous solutions using carbon quantum dots combined in MIL-88B(Fe) under visible light. CHEMOSPHERE 2023; 342:140155. [PMID: 37716561 DOI: 10.1016/j.chemosphere.2023.140155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 09/18/2023]
Abstract
A photocatalytic adsorbent composed of carbon dots (CD) embedded in a metal-organic framework (MOF) of MIL-88 B(Fe) was prepared by solvothermal technique. The synthesized CD@MIL-88 B(Fe) was characterized by different X-ray-based microscopic and spectroscopic methods, as well as electrochemical impedance spectroscopy, UV-Vis, FT-IR, DRS, TGA, and photoluminescence (PL) analysis. The prepared adsorbent showed a remarkable photocatalytic activity for eliminating amphotericin B (AmB) and naproxen (Nap) from aqueous solutions under visible light, reaching up to 92% and 90% removal, respectively, with an RSD value of around 5%. The parameters affecting the degradation process of pharmaceuticals were investigated. The optimal conditions for the degradation process were determined, including pH values (3 and 4 for AmB and Nap), photocatalyst concentration (0.2 g L-1), and H2O2 concentration (40-50 mM). Reactive oxidative species were also identified (·OH, ·O2) by examination of different scavengers. The adsorption isotherm and kinetic studies reveal that the synthesized photocatalyst exhibits dual functionality as an effective adsorbent (with maximum adsorption capacities of 42.5 and 121.5 mg g-1 for AmB and Nap) and a photocatalytic agent for removal purposes.
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Affiliation(s)
- Fateme Firoozbakht
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
| | - Gholamhassan Azimi
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran.
| | | | - Payam Hayati
- Department of Chemistry, Iran University of Science and Technology (IUST), Tehran 16846-13114, Iran
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23
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Li Z, Li X, Li S, Yang Y, Yan W, Xu H. Bibliometric analysis of electrochemical disinfection: current status and development trend from 2002 to 2022. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:111714-111731. [PMID: 37831234 DOI: 10.1007/s11356-023-30117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/24/2023] [Indexed: 10/14/2023]
Abstract
The removal of waterborne pathogens from water is critical in preventing the spread of waterborne diseases. Electrochemical methods have been extensively researched and implemented for disinfection, primarily owing to their simplicity, efficiency, and eco-friendliness. Thus, it is essential to conduct a review about the research progress and hotspots on this promising technique. In this paper, we provided a comprehensive bibliometric analysis to systematically study and analyze the current status, hotspots, and trends in electrochemical disinfection research from 2002 to 2022. This study analyzed literature related to electrochemical disinfection or electrochemical sterilization published in the Web of Science database from 2002 to 2022 using CiteSpace and Biblioshiny R language software packages. The analysis focused on the visualization and assessment of annual publication volume, discipline and journal distribution, collaborative networks, highly cited papers, and keywords to systematically understand the current status and trends of electrochemical disinfection. The results showed that between 2002 and 2022, 1171 publications related to electrochemical disinfection were published, with an exponential increase in the cumulative number of publications (y=17.518e0.2147x, R2= 0.9788). The publications covered 76 disciplines with many articles published in high-impact journals. However, the research power was characterized by a large number of scattered research efforts and insufficient cooperation, indicating the need for further innovative collaboration. The citation analysis and keyword analysis suggest that future development in this field may focus on optimizing electrode materials, investigating the disinfection performance of ·OH based systems, optimizing conditions for actual wastewater treatment, and reducing energy consumption to promote practical applications.
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Affiliation(s)
- Zhen Li
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China
| | - Xinyuan Li
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China
| | - Shanshan Li
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China
| | - Yang Yang
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China
- State Key Laboratory of High-Efficiency Flexible Coal Power Generation and Carbon Capture Utilization and Storage, Xi'an TPRI Water-Management & Environmental Protection Co., Ltd, Xi'an, 710054, China
| | - Wei Yan
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China
- Research Institute of Xi'an Jiaotong University, Zhejiang, Hangzhou, 311200, People's Republic of China
| | - Hao Xu
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China.
- Research Institute of Xi'an Jiaotong University, Zhejiang, Hangzhou, 311200, People's Republic of China.
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24
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Barazorda-Ccahuana HL, Fajardo AS, Dos Santos AJ, Lanza MRV. Decentralized approach toward organic pollutants removal using UV radiation in combination with H 2O 2-based electrochemical water technologies. CHEMOSPHERE 2023; 342:140079. [PMID: 37709061 DOI: 10.1016/j.chemosphere.2023.140079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/26/2023] [Accepted: 09/04/2023] [Indexed: 09/16/2023]
Abstract
The current literature lacks a comprehensive discussion on the trade-off between pollutant degradation/mineralization and treatment time costs in utilizing UV light in combination with H2O2-based electrochemical advanced oxidation processes (EAOPs). The present study sheds light on the benefits of using the photoelectro-Fenton (PEF) process with UVA or UVC for methylparaben (MetP) degradation in real drinking water. Although light boosts the photodegradation of refractory Fe(III) complexes and the photolysis of H2O2 (with UVC only), the energy-intensive nature of light-based treatments is acknowledged. To help tackle the high energy consumption issue, a novel approach was employed: partial application of UVA or UVC light after a predetermined electro-Fenton electrolysis time. The proposed treatment approach yielded satisfactory comparable results to those obtained from the application of PEF/UVA or PEF/UVC in terms of total organic carbon removal (ca. 100%), with notably lower energy consumption (ca. 50%). The study delves into the combined method's feasibility, analyzing pollutant degradation/mineralization process and overall energy consumption. The research identifies possible degradation routes based on intermediate detection and radical quenching experiments. Finally, toxicological assessments evaluate the toxicity levels of MetP and its intermediates. The findings of this study bring meaningful contributions to the fore and point to the highly promising potential of the proposed approach, in terms of sustainability and cost-effectiveness, when applied for decentralized water treatment.
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Affiliation(s)
- Haruna L Barazorda-Ccahuana
- Computational Biology and Chemistry Research Group, Catholic University of Santa María, Urb. San José s/n - Umacollo, Arequipa, 04000, Peru
| | - Ana S Fajardo
- Polytechnic Institute of Coimbra, Applied Research Institute, Rua Da Misericórdia, Lagar Dos Cortiços - S. Martinho Do Bispo, 3045-093 Coimbra, Portugal
| | - Alexsandro J Dos Santos
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São Carlense 400, São Carlos, SP 13566-590, Brazil.
| | - Marcos R V Lanza
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São Carlense 400, São Carlos, SP 13566-590, Brazil.
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25
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Sharaf Aldeen EM, Jalil AA, Mim RS, Hatta AH, Hazril NIH, Chowdhury A, Hassan NS, Rajendran S. Environmental remediation of hazardous pollutants using MXene-perovskite-based photocatalysts: A review. ENVIRONMENTAL RESEARCH 2023; 234:116576. [PMID: 37423362 DOI: 10.1016/j.envres.2023.116576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/19/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Photocatalysis utilizing semiconductors offer a cost-effective and promising solution for the removal of pollutants. MXene and perovskites, which possess desirable properties such as a suitable bandgap, stability, and affordability, have emerged as a highly promising material for photocatalytic activity. However, the efficiency of MXene and perovskites is limited by their fast recombination rates and inadequate light harvesting abilities. Nonetheless, several additional modifications have been shown to enhance their performance, thereby warranting further exploration. This study delves into the fundamental principles of reactive species for MXene-perovskites. Various methods of modification of MXene-perovskite-based photocatalysts, including Schottky junction, Z-scheme and S-scheme are analyzed with regard to their operation, differences, identification techniques and reusability. The assemblance of heterojunctions is demonstrated to enhance photocatalytic activity while also suppressing charge carrier recombination. Furthermore, the separation of photocatalysts through magnetic-based methods is also investigated. Consequently, MXene-perovskite-based photocatalysts are seen as an exciting emerging technology that necessitates further research and development.
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Affiliation(s)
- E M Sharaf Aldeen
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - A A Jalil
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, 81310, UTM Johor Bahru, Johor, Malaysia.
| | - R S Mim
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - A H Hatta
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - N I H Hazril
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - A Chowdhury
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - N S Hassan
- Centre of Hydrogen Energy, Institute of Future Energy, 81310, UTM Johor Bahru, Johor, Malaysia
| | - S Rajendran
- Faculty of Engineering, Department of Mechanical Engineering, University of Tarapacá, Avda, General Velasquez, 1775, Arica, Chile
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26
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Vigil-Castillo HH, Ruiz-Ruiz EJ, López-Velázquez K, Hinojosa-Reyes L, Gaspar-Ramírez O, Guzmán-Mar JL. Assessment of photo electro-Fenton and solar photo electro-Fenton processes for the efficient degradation of asulam herbicide. CHEMOSPHERE 2023; 338:139585. [PMID: 37478989 DOI: 10.1016/j.chemosphere.2023.139585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023]
Abstract
The degradation of asulam herbicide by photo electro-Fenton (PEF) and solar photo electro-Fenton (SPEF) processes was studied using an undivided electrochemical BDD/carbon-felt cell to generate H2O2 continuously. A central composite design combined with response surface methodology was applied to determine the optimal operating conditions of current intensity = 0.30 A, [Fe2+] = 0.3 mM, and [Na2SO4] = 0.11 M at pH 3 to achieve the complete degradation of asulam by electro-Fenton. Subsequently, the SPEF process was more efficient treatment compared to PEF, achieving a complete degradation of asulam and 98% of mineralization in 180 min. Moreover, 4-aminobenzenesulfonamide, 4-aminophenol, and 4-benzoquinone were detected as aromatic intermediates, whereas acetic acid, oxalic acid, and NO3- ions were identified as final degradation by-products. Thus, the SPEF process is an efficient alternative for the complete degradation and mineralization of herbicide asulam in an aqueous solution under natural sunlight.
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Affiliation(s)
- Héctor H Vigil-Castillo
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Químicas, Av. Universidad S/N, Cd. Universitaria, C.P. 66455, San Nicolás de Los Garza, Nuevo León, México
| | - Edgar J Ruiz-Ruiz
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Químicas, Av. Universidad S/N, Cd. Universitaria, C.P. 66455, San Nicolás de Los Garza, Nuevo León, México
| | - Khirbet López-Velázquez
- Universidad Politécnica de Tapachula, Carretera Tapachula - Puerto Madero, Km. 24 + 300, CP 30830, Tapachula, Chiapas, México
| | - Laura Hinojosa-Reyes
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Químicas, Av. Universidad S/N, Cd. Universitaria, C.P. 66455, San Nicolás de Los Garza, Nuevo León, México
| | - Octavio Gaspar-Ramírez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Sede Noreste, Vía de La Innovación 404, Autopista Monterrey-Aeropuerto Km 10, Parque, PIIT, C.P. 66628, Apodaca, Nuevo León, México
| | - Jorge L Guzmán-Mar
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Químicas, Av. Universidad S/N, Cd. Universitaria, C.P. 66455, San Nicolás de Los Garza, Nuevo León, México.
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27
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Li D, Zhang W, Huang Y, Feng H, Wang Z, Yang Z, Chen J, Zhang X, Zhang G, Chen Y. Visible light-induced catalytic performance of composite photocatalyst synthesized with nanomaterials WO 3 and two-dimensional ultrathin g-C 3N 4. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:1910-1925. [PMID: 37831004 PMCID: wst_2023_313 DOI: 10.2166/wst.2023.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
To improve the visible light-induced catalytic activities of Ultrathin g-C3N4 (UCN), a promising photocatalyst WO3/UCN (WU) was synthesized. Its visible light-driven photocatalysis performance was controllable by adjusting the theoretical mass ratio of WO3/UCN. We have calibrated the optimal preparation conditions to be: WO3/UCN ratio as 1:1, the stirring time of the UCN and sodium tungstate mixture as 9 h and the volume of concentrated hydrochloric acid as 6 mL which was poured into the mixture solution with an extra stirring time of 1.5 h. The optimal photocatalyst WUopt had porous and wrinkled configurations. Its light absorption edge was 524 nm while that of UCN was 465 nm. The band gap of WUopt was 2.13 eV, 0.3 eV less than that of UCN. Therefore, the recombination rate of photo-generated electron-hole pairs of WUopt reduced significantly. The removal rate of WUopt on RhB was 97.3%. By contrast, the removal rate of UCN was much lower (53.4%). WUopt retained a high RhB removal rate, it was 5.5% lower than the initial one after being reused for five cycles. The photodegradation mechanism was facilitated through the strong oxidation behaviors from the active free radicals ·O2-, ·OH and h+ generated by WUopt under the visible light irradiation.
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Affiliation(s)
- Dongmei Li
- Guangdong University of Technology, Guangzhou, Guangdong 510006, China E-mail:
| | - Wenxin Zhang
- Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Yi Huang
- Guangzhou Design Institute Group Co., Ltd, Guangzhou 510620, China
| | - Haoxuan Feng
- Affiliated High School of South China Normal University, Guangzhou, Guangdong 510630, China
| | - Zilin Wang
- Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Zhuohong Yang
- Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Jingkai Chen
- Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
| | - Xueqiang Zhang
- Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Gangyi Zhang
- Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Yanbing Chen
- Guangdong University of Technology, Guangzhou, Guangdong 510006, China
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28
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Lozano I, Cervantes-Aviles P, Keller A, Aguilar CL. Removal of pharmaceuticals and personal care products from wastewater via anodic oxidation and electro-Fenton processes: current status and needs regarding their application. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:1143-1154. [PMID: 37771219 PMCID: wst_2023_266 DOI: 10.2166/wst.2023.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
This review provides a current opinion on the most recent works that have been published toward the application of electrochemical advance oxidation processes (EAOPs) for the degradation of pharmaceutical and personal care products (PPCPs) in water streams. Advances in the application of anodic oxidation (AO)- and electro-Fenton (EF)-based processes are reported, including operational conditions, electrode performance, and removal. Although AO- and EF-based processes can easily reach 100% removal of PPCPs, mineralization is desirable to avoid the generation of potential toxic byproducts. The following section exploring some techno-economic aspects of the application of EAOPs is based on electrode selection, operational costs as well as their use as cotreatments, and their synergistic effects. Finally, this short review ends with perspectives about the emerging topics that are faced by these technologies applied for the degradation of PPCPs in research and practice.
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Affiliation(s)
- Iván Lozano
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Vía Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, Puebla 72453, México E-mail: ;
| | - Pabel Cervantes-Aviles
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Vía Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, Puebla 72453, México; University of California, Center for Environmental Implications of Nanotechnology, Santa Barbara, CA, USA 93106
| | - Arturo Keller
- University of California, Center for Environmental Implications of Nanotechnology, Santa Barbara, CA, USA 93106; Bren School of Environmental Science and Management, University of California at Santa Barbara, CA, USA 93106
| | - Claudia López Aguilar
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Av. San Claudio, Ciudad Universitaria, Puebla 72570, México
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29
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Gamboa-Savoy F, Onfray C, Hassan N, Salazar C, Thiam A. Enhanced catalytic reduction of emerging contaminant by using magnetic CuFe 2O 4@MIL-100(Fe) in Fenton-based electrochemical processes. CHEMOSPHERE 2023:139231. [PMID: 37354958 DOI: 10.1016/j.chemosphere.2023.139231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/26/2023]
Abstract
Fenton-based electrochemical processes (FEPs) using newly engineered 3D photocatalyst nanocomposites have garnered significant attention owing to their ability to remove emerging contaminants. Despite the development of numerous materials, there is still a need to enhance their efficiency, stability, and recyclability to address the limitations of FEPs. This study seeks to address this issue by investigating sustainable methods to engineer novel 3D core-shell photocatalyst composites for application in FEPs. These materials can update the photo-assisted PEFs activity, and magnetism can be helpful for the easy recyclability of the catalyst. Herein, we successfully synthesized a magnetic and photoactive CuFe2O4@MIL-100(Fe) (CM) composite through sustainable methods and assessed its morphological structure and physicochemical and photocatalytic properties. The catalytic performance of CM was investigated in an undivided RuO2/air-diffusion cell to treat Cefadroxil. The results show that heterogeneous photoelectro-Fenton (HPEF) (100% in 120 min) has higher degradation efficiency than electro-Fenton (100% in 210 min) and electrooxidation (73.3% in 300 min) processes. The superior degradation efficiency of HPEF is attributed to the formation of a large amount of hydroxyl radicals indicating the excellent photocatalytic activity of the material due to the direct excitation of the Fe-O cluster, which boosts the redox reaction of Fe2+/Fe3+. Key operational parameters such as pH, catalyst concentration, current density, and CuFe2O4 proportion on MIL-100(Fe) in the composite were optimized in the HPEF process. The optimized composite exhibited good stability and easy recyclability, allowing high removal efficiency, which can be kept up after five cycles of 90 min. High degradation performance was observed using natural sunlight radiations. Additionally, possible catalytic degradation mechanisms in HPEFs were proposed based on radical quenching experiments. This study has significant potential to contribute to the development of more sustainable and effective water treatment strategies.
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Affiliation(s)
- Felipe Gamboa-Savoy
- Facultad de Ciencias Naturales, Matemáticas y del Medioambiente, UTEM, Chile
| | - Christian Onfray
- Programa Institucional de Fomento a la I+D+i, Universidad Tecnológica Metropolitana, Chile
| | - Natalia Hassan
- Programa Institucional de Fomento a la I+D+i, Universidad Tecnológica Metropolitana, Chile; Millenium Nucleus in NanoBiophysics, Chile
| | - Claudio Salazar
- Centro de Investigación de Polímeros Avanzados, CIPA, Concepción, 4030000, Chile
| | - Abdoulaye Thiam
- Programa Institucional de Fomento a la I+D+i, Universidad Tecnológica Metropolitana, Chile.
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30
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Lin K, Afzal S, Xu L, Ding T, Li F, Zhang M. Heterogeneous photo-Fenton degradation of acid orange 7 activated by red mud biochar under visible light irradiation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121454. [PMID: 36997142 DOI: 10.1016/j.envpol.2023.121454] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/11/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
The heterogeneous photo-Fenton process is an effective technology for degrading organic contaminants in wastewater, and Fe-based catalysts are recently preferred due to their low biotoxicity and geological abundance. Herein, we synthesized a Fe-containing red mud biochar (RMBC) via one-step co-pyrolysis of red mud and shaddock peel as a photo-Fenton catalyst to activate H2O2 and degrade an azo dye (acid orange 7, AO7). RMBC showed excellent AO7 removal capability with a decolorization efficiency of nearly 100% and a mineralization efficiency of 87% in the heterogeneous photo-Fenton process with visible light irradiation, which were kept stable in five successive reuses. RMBC provided Fe2+ for H2O2 activation, and the light irradiation facilitated the redox cycle of Fe2+/Fe3+ in the system to produce more reactive oxygen species (ROS, i.e., •OH) for AO7 degradation. Further investigation revealed that •OH was the predominant ROS responsible for AO7 degradation in the light-free condition, while more ROS were produced in the system with light irradiation, and 1O2 was the primary ROS in the photo-Fenton process for AO7 removal, followed by •OH and O2•-. This study provides insight into the interfacial mechanisms of RMBC as a photo-Fenton catalyst for treating non-degradable organic contaminants in water through advanced oxidation processes under visible light irradiation.
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Affiliation(s)
- Kun Lin
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang, China
| | - Shahzad Afzal
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang, China
| | - Liheng Xu
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang, China
| | - Tao Ding
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang, China
| | - Feng Li
- College of Environment Science and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Ming Zhang
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
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do Vale-Júnior E, de Sousa RA, Antunes RA, do Nascimento JHO, Lima Santos JE, Martínez-Huitle CA, Dos Santos EV. Evaluating the catalytic effect of Fe@Fe 2O 3-modified granulated cork as an innovative heterogeneous catalyst in electro-Fenton degradation of benzoquinone in different aqueous matrices. CHEMOSPHERE 2023:139209. [PMID: 37315857 DOI: 10.1016/j.chemosphere.2023.139209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 05/27/2023] [Accepted: 06/11/2023] [Indexed: 06/16/2023]
Abstract
This study investigated the potential of a novel biomass-derived cork as a suitable catalyst after its modification with Fe@Fe2O3 for in-situ application in heterogeneous electro-Fenton (HEF) process for benzoquinone (BQ) elimination from water. No attempts on the application of modified granulated cork (GC) as a suspended heterogeneous catalyst in the HEF process for water treatment have been published yet. GC was modified by sonification approach in a FeCl3 + NaBH4 solution to reduce the ferric ions to metallic iron in order to obtain Fe@Fe2O3-modified GC (Fe@Fe2O3/GC). Results clearly demonstrated that this catalyst exhibited excellent electrocatalytic properties, such as a high conductivity as well as relatively high redox current and possessed several active sites for water depollution applications. Using Fe@Fe2O3/GC as catalyst in HEF, 100% of BQ removal was achieved in synthetic solutions by applying 33.3 mA cm-2 after 120 min. Different experimental conditions were tested to determine that best possible conditions can be as follow: 50 mmol L-1 Na2SO4 and 10 mg L-1 of Fe@Fe2O3/GC catalyst using Pt/carbon-PTFE air diffusion cell by applying 33.3 mA cm-2. Nevertheless, when Fe@Fe2O3/GC was used in the HEF approach to depollute real water matrices, no complete BQ concentration was removal achieved after 300 min of treatment, achieving between 80 and 95% of effectiveness.
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Affiliation(s)
- Edilson do Vale-Júnior
- Renewable Energies and Environmental Sustainability Research Group, Institute of Chemistry, Federal University of Rio Grande Do Norte, Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, CEP 59078-970, Natal, Rio Grande do Norte, Brazil
| | - Rainy Alves de Sousa
- Renewable Energies and Environmental Sustainability Research Group, Institute of Chemistry, Federal University of Rio Grande Do Norte, Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, CEP 59078-970, Natal, Rio Grande do Norte, Brazil
| | - Renato Altobelli Antunes
- Center for Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Santo André, SP, 09210580, Brazil
| | - Jose Heriberto Oliveira do Nascimento
- Research Group on Innovation in Micro and Nanotechnology - Department of Textile Engineering, Federal University of Rio Grande Do Norte, Campus Universitario, 59072-970, Natal, RN, Brazil
| | - José Eudes Lima Santos
- Renewable Energies and Environmental Sustainability Research Group, Institute of Chemistry, Federal University of Rio Grande Do Norte, Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, CEP 59078-970, Natal, Rio Grande do Norte, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Mi-cropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, UNESP, P.O. Box 355, 14800 900, Araraquara, SP, Brazil
| | - Carlos A Martínez-Huitle
- Renewable Energies and Environmental Sustainability Research Group, Institute of Chemistry, Federal University of Rio Grande Do Norte, Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, CEP 59078-970, Natal, Rio Grande do Norte, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Mi-cropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, UNESP, P.O. Box 355, 14800 900, Araraquara, SP, Brazil.
| | - Elisama Vieira Dos Santos
- Renewable Energies and Environmental Sustainability Research Group, Institute of Chemistry, Federal University of Rio Grande Do Norte, Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, CEP 59078-970, Natal, Rio Grande do Norte, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Mi-cropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, UNESP, P.O. Box 355, 14800 900, Araraquara, SP, Brazil; School of Science and Technology, Federal University of Rio Grande Do Norte, Campus Universitario, 59072-970, Natal, Brazil.
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Brillas E. Solar photoelectro-Fenton: A very effective and cost-efficient electrochemical advanced oxidation process for the removal of organic pollutants from synthetic and real wastewaters. CHEMOSPHERE 2023; 327:138532. [PMID: 37003440 DOI: 10.1016/j.chemosphere.2023.138532] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/19/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
Recalcitrant and toxic organic pollutants from wastewaters are scarcely removed in conventional wastewater treatment plants. To preserve the water quality, organics need to be removed by developing powerful oxidation technologies. Our laboratory proposed in 2007 a potent electrochemical advanced oxidation process (EAOP) for wastewater remediation, so-called solar photoelectro-Fenton (SPEF). This review summarizes the advances of this emerging technology up to 2022, making evident its effectiveness and cost-efficiency for the destruction of usual organic pollutants. The simultaneous action of generated hydroxyl radicals and the photolysis by sunlight explains the high oxidation power of SPEF respect to other EAOPs. The review is initiated by describing the fundamentals of the process to remark the role of the produced oxidants and the benefits of using solar irradiation in its performance. The photoelectrochemical systems used (bench tank reactor and solar pre-pilot flow plant) and the assessment of the operating variables are discussed. The characteristics of the most common homogeneous SPEF for the degradation and mineralization of several synthetic solutions of industrial chemicals, herbicides, pharmaceuticals, and synthetic organic dyes, as well as of some real wastewaters, are further described. The influence of the photoelectrochemical cell, electrodes, solution pH, electrolyte composition, Fe2+ and pollutant concentration, and current density is analyzed. The performance of a homogeneous SPEF-like process with active chlorine and heterogeneous SPEF processes with solid catalysts such as Fe3O4 and sodium vermiculite is also discussed. Finally, the advances of homogeneous SPEF combined with other techniques like solar photocatalysis, solar photoelectrocatalysis, anaerobic digestion, and nanofiltration are reported.
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Affiliation(s)
- Enric Brillas
- Laboratori d'Electroquímica dels Materialsi del Medi Ambient, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain.
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Conde JJ, Abelleira S, Estévez S, González-Rodríguez J, Feijoo G, Moreira MT. Improving the sustainability of heterogeneous Fenton-based methods for micropollutant abatement by electrochemical coupling. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 332:117308. [PMID: 36731404 DOI: 10.1016/j.jenvman.2023.117308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/01/2023] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Advanced oxidation processes such as Fenton reaction-based processes have attracted great interest in recent years as a promising alternative for the removal of persistent pollutants in wastewater. The use of nanocatalysts in advanced oxidation processes overcomes the limitations of homogeneous Fenton processes, where acidic pH values are required, and a large amount of sludge is generated after treatment. Aiming at maximizing the catalytic potential of the process, different configurations include coupling photocatalysis or electrochemistry to Fenton reactions. This manuscript presents a comparative environmental and economic analysis of different heterogeneous Fenton-based process using magnetic nanoparticles: Fenton, photo-Fenton, electro-Fenton and photoelectron-Fenton. These alternatives encompass not only different reaction conditions but also varying degradation kinetics, which control the treatment capability in each specific case. It is not only important to determine the technological feasibility of the proposal based on the removal performance of the target compounds, but also to identify the environmental profile of each configuration. In this regard, the Life Cycle Assessment methodology was applied considering a combination of primary and secondary data from process modeling. Moreover, and aiming towards the future large-scale implementation of the technology, an economic analysis of each configuration was also performed to provide a better understanding about the costs associated to the operation of Fenton-based wastewater treatments.
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Affiliation(s)
- Julio J Conde
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - Santiago Abelleira
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Sofia Estévez
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Jorge González-Rodríguez
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Gumersindo Feijoo
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Maria Teresa Moreira
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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Deng F, Olvera-Vargas H, Zhou M, Qiu S, Sirés I, Brillas E. Critical Review on the Mechanisms of Fe 2+ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies. Chem Rev 2023; 123:4635-4662. [PMID: 36917618 DOI: 10.1021/acs.chemrev.2c00684] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
This review presents an exhaustive overview on the mechanisms of Fe3+ cathodic reduction within the context of the electro-Fenton (EF) process. Different strategies developed to improve the reduction rate are discussed, dividing them into two categories that regard the mechanistic feature that is promoted: electron transfer control and mass transport control. Boosting the Fe3+ conversion to Fe2+ via electron transfer control includes: (i) the formation of a series of active sites in both carbon- and metal-based materials and (ii) the use of other emerging strategies such as single-atom catalysis or confinement effects. Concerning the enhancement of Fe2+ regeneration by mass transport control, the main routes involve the application of magnetic fields, pulse electrolysis, interfacial Joule heating effects, and photoirradiation. Finally, challenges are singled out, and future prospects are described. This review aims to clarify the Fe3+/Fe2+ cycling process in the EF process, eventually providing essential ideas for smart design of highly effective systems for wastewater treatment and valorization at an industrial scale.
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Affiliation(s)
- Fengxia Deng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China.,Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Hugo Olvera-Vargas
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México (IER-UNAM), Priv. Xochicalco S/N, Col. Centro, Temixco, Morelos CP 62580, México
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, P. R. China
| | - Shan Qiu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Ignasi Sirés
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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F. Khaleel G, Ismail I, Abbar AH. Application of solar photo-electro-Fenton technology to petroleum refinery wastewater degradation: Optimization of operational parameters. Heliyon 2023; 9:e15062. [PMID: 37095992 PMCID: PMC10121842 DOI: 10.1016/j.heliyon.2023.e15062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Industrial and agricultural advances have led to global issues such as contamination of water sources and lack of access to clean water. Wastewater from petroleum refineries must be subjected to treatment as it poses a significant environmental threat. The present research aimed to reduce the level of chemical oxygen demand (COD) of an effluent from Bijee petroleum refinery plant, Iraq, using solar photo-electro-Fenton (SPEF) process operated in a batch recycle model. The electrochemical reactor used in the present research was of a tubular design with an anode composed of porous graphite rod and a concentric cylindrical cathode made of the same material. The impacts of operating parameters such as current density (10-50 mA/cm2), Fe2+ concentration (0.2-0.8 mM), NaCl addition (0-1 g/L), and time (30-90 min) on the COD removal efficiency were explored based on the response surface methodology (RSM). Results showed that the impact of Fe2+ concentration was most prominent, with an effective contribution of 47.7%, followed by current density, with a contribution of 18.26%, and the addition of NaCl, with a contribution of 11.20%. COD removal was found to increase with an increase in current density, Fe2+ concentration, NaCl addition, and time, respectively, while energy consumption was found to increase significantly with an increase in current density and a decrease in Fe2+ concentration, respectively. The optimum conditions were observed to be an initial pH of 3, current density of 10 mA/cm2, Fe2+ concentration of 0.8 mM, NaCl addition of 0.747 g/L, and a duration of 87 min, upon which 93.20% COD removal efficiency was achieved, with an energy consumption of 15.97 kWh/kg COD.
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Sivagami K, Sharma P, Karim AV, Mohanakrishna G, Karthika S, Divyapriya G, Saravanathamizhan R, Kumar AN. Electrochemical-based approaches for the treatment of forever chemicals: Removal of perfluoroalkyl and polyfluoroalkyl substances (PFAS) from wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160440. [PMID: 36436638 DOI: 10.1016/j.scitotenv.2022.160440] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/19/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Electrochemical based approaches for the treatment of recalcitrant water borne pollutants are known to exhibit superior function in terms of efficiency and rate of treatment. Considering the stability of Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are designated as forever chemicals, which generating from various industrial activities. PFAS are contaminating the environment in small concentrations, yet exhibit severe environmental and health impacts. Electro-oxidation (EO) is a recent development that treats PFAS, in which different reactive species generates at anode due to oxidative reaction and reductive reactions at the cathode. Compared to water and wastewater treatment methods those being implemented, electrochemical approaches demonstrate superior function against PFAS. EO completely mineralizes (almost 100 %) non-biodegradable organic matter and eliminate some of the inorganic species, which proven as a robust and versatile technology. Electrode materials, electrolyte concentration pH and the current density applying for electrochemical processes determine the treatment efficiency. EO along with electrocoagulation (EC) treats PFAS along with other pollutants from variety of industries showed highest degradation of 7.69 mmol/g of PFAS. Integrated approach with other processes was found to exhibit improved efficiency in treating PFAS using several electrodes boron-doped diamond (BDD), zinc, titanium and lead based with efficiency the range of 64 to 97 %.
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Affiliation(s)
- K Sivagami
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, India.
| | - Pranshu Sharma
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, India
| | - Ansaf V Karim
- Environmental Science and Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai, India
| | - Gunda Mohanakrishna
- School of Advanced Sciences, KLE Technological University, Hubli 580031, India.
| | - S Karthika
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, India
| | - G Divyapriya
- Swiss Government Excellence Postdoctoral Scholar, Multi-Scale Robotics Lab (MSRL), Swiss Federal Institute of Technology (ETH) Zurich, Switzerland
| | - R Saravanathamizhan
- Department of Chemical Engineering, A.C. College of Technology, Anna University, India
| | - A Naresh Kumar
- Department of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USA
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Recent advances in application of heterogeneous electro-Fenton catalysts for degrading organic contaminants in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:39431-39450. [PMID: 36763272 DOI: 10.1007/s11356-023-25726-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 01/31/2023] [Indexed: 02/11/2023]
Abstract
Over the last decades, advanced oxidation processes (AOPs) have been widely used in surface and ground water pollution control. The heterogeneous electro-Fenton (EF) process has gained much attention due to its properties of high catalytic performance, no generation of iron sludge, and good recyclability of catalyst. As of October 2022, the cited papers and publications of EF are around 1.3 × 10-5 and 3.4 × 10-3 in web of science. Among the AOP techniques, the contaminant removal efficiencies by EF process are above 90% in most studies. Current reviews mainly focused on the mechanism of EF and few reviews comprehensively summarized heterogeneous catalysts and their applications in wastewater treatment. Thus, this review focuses on the current studies covering the period 2012-2022, and applications of heterogeneous catalysts in EF process. Two kinds of typical heterogeneous EF systems (the addition of solid catalysts and the functionalized cathode catalysts) and their applications for organic contaminants degradation in water are reviewed. In detail, solid catalysts, including iron minerals, iron oxide-based composites, and iron-free catalysts, are systematically described. Different functionalized cathode materials, containing Fe-based cathodes, carbonaceous-based cathodes, and heteroatom-doped cathodes, are also reviewed. Finally, emphasis and outlook are made on the future prospects and challenges of heterogeneous EF catalyst for wastewater treatments.
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Bai Y, Sun X, Dang Y, Yu S, Zhu JJ, Zhou Y. A self-circulating electro-fenton-like process over Fe 3O 4-CaO 2 cathode for highly efficient degradation of levofloxacin. CHEMOSPHERE 2023; 313:137520. [PMID: 36528160 DOI: 10.1016/j.chemosphere.2022.137520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/12/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Electro-Fenton reaction was limited by the generation of H2O2 and the circulation of Fe(Ⅱ)/Fe(Ⅲ). Herein, an efficient electro-Fenton-like process was constructed based on Fe3O4-CaO2 cathode promoted by peroxymonosulfate (PMS). Levofloxacin (LEV) could be efficiently degraded (92.1%) and mineralized with the TOC removal of 74.5% in this self-circulating process. More importantly, the Fe3O4-CaO2 exhibited good stability in the recycles due that CaO2 was covered by Fe3O4, which inhibited the rapid release of H2O2. Mechanism analysis indicated that CaO2 could not only replace H2O2 to accelerate the oxidation of Fe(Ⅱ) to Fe(Ⅲ), but also could form complexes with Fe(Ⅲ) and PMS to transfer electrons from ligands to metals, thereby enhancing the reduction of Fe(Ⅲ) to Fe(Ⅱ). As a result, the electrical consumption was significantly reduced, which was only 5.0% of the Fe3O4 in electro-Fenton reaction. Meanwhile, the hydrolyzed product of Ca(OH)2 reacted with Fe(Ⅲ) in the presence of H2O2 and converted into CaO2. Thus, the self-circulation of CaO2/Ca(OH)2 and Fe(Ⅲ)/Fe(Ⅱ) was realized, which accelerated the generation of active species, such as, ·OH, O2·- and 1O2. This work first proposed a self-circulating electro-Fenton-like system and demonstrated the potential application of Fe3O4-CaO2 in the treatment of wastewater.
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Affiliation(s)
- Yangyang Bai
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China
| | - Xiaoqin Sun
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China
| | - Yuan Dang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China
| | - Sha Yu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China
| | - Jun-Jie Zhu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China; School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
| | - Yuanzhen Zhou
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.
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Appraising efficacy of existing and advanced technologies for the remediation of beta-blockers from wastewater: A review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:25427-25451. [PMID: 35094282 DOI: 10.1007/s11356-021-18287-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/19/2021] [Indexed: 02/08/2023]
Abstract
The discharge of emerging pollutants, such as beta-blockers (BB), has been recognized as one of the major threats to the environment due to the ecotoxicity associated with these emerging pollutants. The BB are prescribed to treat high blood pressure and cardiovascular diseases; however, even at lower concentration, these pollutants can pose eco-toxic impacts towards aquatic organisms. Additionally, owing to their recalcitrant nature, BB are not effectively removed through conventional technologies, such as activated sludge process, trickling filter and moving bed bioreactor; thus, it is essential to understand the degradation mechanism of BB in established as well as embryonic technologies, like adsorption, electro-oxidation, Fenton process, ultraviolet-based advance oxidation process, ozonation, membrane systems, wetlands and algal treatment. In this regard, this review articulates the recalcitrant nature of BB and their associated removal technologies. Moreover, the major advantages and limitations of these BB removal technologies along with the recent advancements with regard to the application of innovative materials and strategies have also been elucidated. Therefore, the present review intends to aid the researchers in improving the BB removal efficiency of these technologies, thus alleviating the problem of the release of BB into the environment.
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Paquini LD, Marconsini LT, Profeti LPR, Campos OS, Profeti D, Ribeiro J. An overview of electrochemical advanced oxidation processes applied for the removal of azo-dyes. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1007/s43153-023-00300-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Liu X, Yao Y, Lu J, Zhou J, Chen Q. Catalytic activity and mechanism of typical iron-based catalysts for Fenton-like oxidation. CHEMOSPHERE 2023; 311:136972. [PMID: 36283427 DOI: 10.1016/j.chemosphere.2022.136972] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 09/29/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Heterogeneous Fenton-like systems were exploited for the degradation of Reactive Red X-3B (RR X-3B) using iron-carbon composite, sponge iron, chalcopyrite and pyrite as catalysts. The effect of operational variables on the catalytic activity and metal leaching behavior of catalysts was evaluated and the catalytic mechanism was discussed. The experimental results showed that under the optimum conditions, chemical oxygen demand (COD) removals by Fenton-like systems could reach 89.91%, 86.84%, 80.11% and 60.02% with iron-carbon composite, sponge iron, chalcopyrite and pyrite, respectively. Micro-electrolysis of iron-carbon composite and sponge iron resulted in higher COD removal at acid pH range. Electron Paramagnetic Resonance (EPR) analysis and quenching tests showed that •OH was the main reactive oxygen species responsible for the degradation of RR X-3B. A large amount of Fe2+ leached from iron-carbon composite and sponge iron, which served as a homogeneous Fenton catalyst during the degradation of RR X-3B. In contrast, much lower amount of Fe2+ was leached from chalcopyrite and pyrite, and surface catalysis of the minerals played more important role in the generation of •OH. Surface characterization and density functional theory (DFT) calculation results illustrated that ≡Fe(II) was the primary surface catalytic site during the reaction. The reduction of ≡Fe(III) and ≡Cu(II) can be facilitated by sulfides on the mineral surface. The Fenton-like systems catalyzed by iron-based materials exhibited higher H2O2 utilization and COD removal than classical Fenton system. With the lower metal leaching concentration and stable surface property, chalcopyrite and pyrite may be more practical applicable from a long-term catalytic activity point of view.
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Affiliation(s)
- Xiaochen Liu
- School of Environment Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Yuan Yao
- Zhongye Changtian International Engineering Co., Ltd., Changsha, 410205, PR China.
| | - Jun Lu
- School of Environment Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Juan Zhou
- School of Environment Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institution of Pollution Control and Ecological Security, Shanghai, 200092, PR China; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, 201620, PR China
| | - Quanyuan Chen
- School of Environment Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institution of Pollution Control and Ecological Security, Shanghai, 200092, PR China; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, 201620, PR China.
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Deng F, Jiang J, Sirés I. State-of-the-art review and bibliometric analysis on electro-Fenton process. CARBON LETTERS 2023; 33. [PMCID: PMC9594000 DOI: 10.1007/s42823-022-00420-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/01/2022] [Accepted: 10/03/2022] [Indexed: 06/04/2023]
Abstract
The electro-Fenton (EF) process was first proposed in 1996 and, since then, considerable development has been achieved for its application in wastewater treatment, especially at lab and pilot scale. After more than 25 years, the high efficiency, versatility and environmental compatibility of EF process has been demonstrated. In this review, bibliometrics has been adopted as a tool that allows quantifying the development of EF as well as introducing some useful correlations. As a result, information is summarized in a more visual manner that can be easily analyzed and interpreted as compared to conventional reviewing. During the recent decades under review, 83 countries have contributed to the dramatic growth of EF publications, with China, Spain and France leading the publication output. The top 12 most cited articles, along with the top 32 most productive authors in the EF field, have been screened. Four stages have been identified as main descriptors of the development of EF throughout these years, being each stage characterized by relevant breakthroughs. To conclude, a general cognitive model for the EF process is proposed, including atomic, microscopic and macroscopic views, and future perspectives are discussed.
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Affiliation(s)
- Fengxia Deng
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090 People’s Republic of China
- Laboratori d’Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Jizhou Jiang
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205 People’s Republic of China
| | - Ignasi Sirés
- Laboratori d’Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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Gómez CA, Gómez-García MÁ, Dobrosz-Gómez I. Analysis of the Capacity of the Fenton Process for the Treatment of Polluted Wastewater from the Leather Dyeing Industry. ScientificWorldJournal 2023; 2023:4724606. [PMID: 37065773 PMCID: PMC10101747 DOI: 10.1155/2023/4724606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/12/2023] [Accepted: 03/10/2023] [Indexed: 04/18/2023] Open
Abstract
In this work, the capacity of the Fenton oxidation process for the degradation of color and organic matter contained in the wastewater generated in the leather dyeing stage (WWDS) of an industrial tannery was evaluated. The wastewater characteristics included, among others, high toxicity (lethal concentration for Artemia salina, 24 h test, 50% of population = 93.71 ppm), high dye concentration (36 mg/L, yellow color), high chromium concentration (3.34 mg/L), and low biodegradability index (BOD5/COD ratio = 0.083). From an experimental design, the response surface methodology, and the multiobjective optimization analysis, the following optimal operating conditions were established: initial pH = 3.15, [Fe2+] = 0.981 mM, and [H2O2] = 5.38 mM. After 10 min of oxidation (determined from kinetic studies), it reached approximately 97% decolorization, COD reduction of approximately 82%, and TOC mineralization of approximately 92%. A synergistic effect of Fenton's reagents for TOC removal (S TOC = 0.8) and decolorization (S CN = 0.28) of the WWDS under study was confirmed experimentally. An increase in the biodegradability index, to a value of approximately 0.3, was confirmed. The cost of the treatment was estimated at 0.0112 USD/m3. Thus, the Fenton oxidation process allowed compliance with current Colombian environmental regulations and considerably improved the biodegradability and toxicity characteristics of the studied industrial effluent. It can be considered as an efficient alternative, easy to carry out on an industrial batch scale, and economically viable for the treatment of wastewater from the leather dyeing stage of an industrial tannery.
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Affiliation(s)
- Carlos A. Gómez
- Laboratorio de Materiales y Procesos Reactivos (LM&PR), Grupo de Investigación en Procesos Reactivos Intensificados y Materiales Avanzados (PRISMA), Departamento de Ingeniería Química, Facultad de Ingeniería y Arquitectura, Universidad Nacional de Colombia, Sede Manizales, Campus La Nubia, Apartado Aéreo 127, Manizales, Caldas, Colombia
| | - Miguel-Ángel Gómez-García
- Laboratorio de Materiales y Procesos Reactivos (LM&PR), Grupo de Investigación en Procesos Reactivos Intensificados y Materiales Avanzados (PRISMA), Departamento de Ingeniería Química, Facultad de Ingeniería y Arquitectura, Universidad Nacional de Colombia, Sede Manizales, Campus La Nubia, Apartado Aéreo 127, Manizales, Caldas, Colombia
| | - Izabela Dobrosz-Gómez
- Laboratorio de Materiales y Procesos Reactivos (LM&PR), Grupo de Investigación en Procesos Reactivos Intensificados y Materiales Avanzados (PRISMA), Departamento de Física y Química, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Colombia, Sede Manizales, Campus La Nubia, Apartado Aéreo 127, Manizales, Caldas, Colombia
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Rius-Ayra O, Biserova-Tahchieva A, Llorca-Isern N. Removal of dyes, oils, alcohols, heavy metals and microplastics from water with superhydrophobic materials. CHEMOSPHERE 2023; 311:137148. [PMID: 36351466 DOI: 10.1016/j.chemosphere.2022.137148] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/19/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
A wide variety of pollutants can be currently found in water that are extremely difficult to remove due to their chemical composition and properties. A lot of effort has been made to tackle this issue that directly affects the environment. In this scenario, superhydrophobic surfaces, which have a water contact angle >150°, have emerged as an innovative technology that could be applied in different ways. Their environmental applications show promise in removing emerging pollutants from water. While the number of publications on superhydrophobic materials has remained largely unchanged since 2019, the number of articles on the environmental applications of superhydrophobic surfaces is still rising, corroborating the interest in this area. Herein, we briefly present the basis of superhydrophobicity and show the different materials that have been used to remove pollutants from water. We have identified five types of emerging pollutants that are efficiently removed by superhydrophobic materials: oils, microplastics, dyes, heavy metals, and ethanol. Finally, the future challenges of these applications are also discussed, considering the state of the art of the environmental applications of superhydrophobic materials.
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Affiliation(s)
- Oriol Rius-Ayra
- CPCM Departament de Ciència dels Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain.
| | - Alisiya Biserova-Tahchieva
- CPCM Departament de Ciència dels Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
| | - Nuria Llorca-Isern
- CPCM Departament de Ciència dels Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
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Poblete R, Cortes E, Pérez N, Maldonado MI. Use of vinasse and coffee waste as chelating agent of photo-Fenton landfill leachate treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:5037-5046. [PMID: 35974283 DOI: 10.1007/s11356-022-22573-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
This research studies the use of vinasse (VS) coming from Pisco and caffeic acid (Caa) from solid coffee waste as chelating agents of this process, to carry out a photo-Fenton process using UVc lamps of 254-nm wavelength for 60 min, at the natural pH of the landfill leachate (8.9). Without the chelating agent, there was a removal of UV 254 and COD of 54.2% and 54.7%, respectively, when the photo-Fenton reaction was carried out at pH 3; at pH 6, the removal of UV 254 and COD was 13.1% and 39.2%, respectively, and at pH 8.9, the elimination of UV 254 and COD was 10.8% and 16.1%, respectively. When Caa was used in the landfill leachate (LL) for the photo-catalytic processes carried out at pH 8.9, a removal of 24.1%, 43.0%, and 47.4% of UV 254 was obtained using 5 mg/L, 50 mg/L, and 100 mg/L of Caa. The removal of UV 254 was 27.3%, 30.7%, and 36.3% using 5 mg/L, 50 mg/L, and 100 mg/L of VS, respectively, and the removal of COD was 32.2%, 35.4%, and 39.2% using 5 mg/L, 50 mg/L, and 100 mg/L of VS, respectively. When Caa was used in the LL at pH 8.9, the concentration of total Fe went from 37.5 to 33.2, from 40.2 to 36.8, and from 45.2 to 42.1, using 5 mg/L, 50 mg/L, and 100 mg/L of caffeic acid, respectively. Using VS in the LL at pH 8.9, the concentration of total Fe along the run went from 35.1 to 32.2, from 39.4 to 34.8, and from 42.1 to 40.2, using 5 mg/L, 50 mg/L, and 100 mg/L of VS, respectively. As a result of these processes, it was noted that the use of Caa and VS increases the solubility of Fe at a higher pH.
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Affiliation(s)
- Rodrigo Poblete
- Universidad Católica del Norte, Facultad de Ciencias del Mar, Escuela de Prevención de Riesgosy Medioambiente, 1780000, Coquimbo, Chile.
| | - Ernesto Cortes
- Universidad Católica del Norte, Facultad de Ciencias del Mar, Escuela de Prevención de Riesgosy Medioambiente, 1780000, Coquimbo, Chile
| | - Norma Pérez
- Universidad Católica del Norte, Facultad de Ciencias del Mar, Escuela de Prevención de Riesgosy Medioambiente, 1780000, Coquimbo, Chile
| | - Manuel I Maldonado
- Plataforma Solar de Almería (CIEMAT), 04200, Tabernas, Almeria, Spain
- CIESOL, Joint Centre University of Almería-CIEMAT, 04120, Almería, Spain
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46
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Adeleye AT, John KI, Ighalo JO, Ogunniyi S, Adeyanju CA, Adeniyi AG, Elawad M, Omorogie MO. Photocatalytic remediation of methylene blue using hydrothermally synthesized H-Titania and Na-Titania nanotubes. Heliyon 2022; 8:e12610. [PMID: 36593848 PMCID: PMC9803790 DOI: 10.1016/j.heliyon.2022.e12610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/10/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Although nanotube is among the most effective morphology of Titania due to its unilateral pathway for photo-generated charge transfer and mechanical stability, its performance is still hampered by high recombination. In the present study, to further improve the photocatalytic degradation performance of Titania, univalent elements of H and Na were respectively ion-exchanged into the Titania nanotubes (TNTs). The photocatalyst was characterized using XRD, TEM, ICP-AES, and FTIR. The modified samples displayed enhanced photocatalytic degradation performance over Degussa TiO2 under UV-A light illumination of MB. The rate constants of NaTNT and HTNT were 16 and 13 times that of Degussa TiO2. Specifically, the Na-TNTs showed better photocatalytic degradation activity than H-TNTs with a rate constant of 0.12 min-1 while the latter showed 0.09 min-1. The optimum adsorption and photocatalytic performance of NaTNT were determined at pH 6 achieving about 99% MB removal within 10 min of irradiation. The ion exchange NaTNT displayed excellent reusability after the fifth cycle of the photocatalytic tests and superoxide radicals were experimentally determined to be the main reactive oxygen species involved in the photocatalytic degradation of MB.
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Affiliation(s)
- Aderemi Timothy Adeleye
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, Australia,Organization of African Academic Doctor (OAAD), Off Kamiti Road, P. O. Box 25305000100, Nairobi, Kenya
| | - Kingsley Igenepo John
- Organization of African Academic Doctor (OAAD), Off Kamiti Road, P. O. Box 25305000100, Nairobi, Kenya,College of Science, Health, Engineering and Education, Murdoch University, Murdoch 6150, Australia,Department of Pure and Applied Chemistry, College of Natural and Applied Sciences, Veritas University, P.M.B. 5171, Abuja, Nigeria
| | - Joshua O. Ighalo
- Department of Chemical Engineering, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria,Department of Chemical Engineering, Nnamdi Azikiwe University, P. M. B. 5025, Awka, Nigeria
| | - Samuel Ogunniyi
- Department of Chemical Engineering, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria
| | | | - Adewale George Adeniyi
- Department of Chemical Engineering, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria
| | - Mohammed Elawad
- Faculty of Materials and Chemical Engineering, Yibin University, 64400, Yibin, China,Corresponding author.
| | - Martins O. Omorogie
- Department of Chemical Sciences, Redeemer's University, P.M.B. 230, Ede, 232101, Nigeria,Environmental Science and Technology Unit, African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer’s University, P.M.B. 230, Ede, 232101, Nigeria,Corresponding author.
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47
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Amarzadeh M, Salehizadeh S, Damavandi S, Mubarak NM, Ghahrchi M, Ramavandi B, Shahamat YD, Nasseh N. Statistical modeling optimization for antibiotics decomposition by ultrasound/electro-Fenton integrated process: Non-carcinogenic risk assessment of drinking water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 324:116333. [PMID: 36208514 DOI: 10.1016/j.jenvman.2022.116333] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/17/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
The present work proposes an ultrasound (US) assisted electro-Fenton (EF) process for eliminating penicillin G (PNG) and ciprofloxacin (CIP) from aqueous solutions and the process was further optimized by response surface methodology (RSM)- Box-Behnken design (BBD). The impact of pH, hydrogen peroxide (H2O2) concentration, applied voltage, initial pollutant concentration, and operating time were studied. The capability application of the electro-Fenton (EF) and US processes was compared separately and in combination under the optimum conditions of pH of 4, a voltage of 15 V, the initial antibiotic concentration of 20.7 mg/L, H2O2 concentration of 0.8 mg/L, and the operating time of 75 min. The removal efficiency of PNG and CIP using the sono-electro-Fenton (SEF) process, as the results revealed, was approximately 96% and 98%, respectively. The experiments on two scavengers demonstrated that ⦁OH contributes significantly to the CIP and PNG degradation by SEF, whereas ⦁O-2 corresponds to only a negligible amount. The total organic carbon (TOC) and chemical oxygen demand (COD) analyses were used to assess the mineralization of CIP and PNG. The efficiency of COD and TOC removal was reached at 73.25% and 62.5% for CIP under optimized operating circumstances, and at 61.52% and 72% for PNG, respectively. These findings indicate that a sufficient rate of mineralization was obtained by SEF treatment for the mentioned pollutants. The reaction kinetics of CIP and PNG degradation by the SEF process were found to follow a pseudo-first-order kinetic model. In addition, the human health risk assessment of natural water containing CIP and PNG that was purified by US, EF, and SEF processes was done for the first time. According to the findings, the non-carcinogenic risk (HQ) caused by drinking purified water by all three systems was calculated in the acceptable range. Thus, SEF is a proper system to remove various antibiotics in potable water and reduces their human health risks.
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Affiliation(s)
- Mohamadamin Amarzadeh
- Department of Safety Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
| | - Saeed Salehizadeh
- Department of Chemical Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
| | - Sobhan Damavandi
- Department of Inspection Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam.
| | - Mina Ghahrchi
- Department of Environmental Health Engineering, Torbat Jam Faculty of Medical Sciences, Torbat Jam, Iran.
| | - Bahman Ramavandi
- Environmental Health Engineering Department, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Yousef Dadban Shahamat
- Department of Environmental Health Engineering, Faculty of Health, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Negin Nasseh
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran.
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48
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Zhao F, Xiao J, Geng S, Wang Y, Tsiakaras P, Song S. Novel Fe7S8/C nanocomposites with accelerating iron cycle for enhanced heterogeneous electro-Fenton degradation of dyes. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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49
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Santos MC, Antonin VS, Souza FM, Aveiro LR, Pinheiro VS, Gentil TC, Lima TS, Moura JPC, Silva CR, Lucchetti LEB, Codognoto L, Robles I, Lanza MRV. Decontamination of wastewater containing contaminants of emerging concern by electrooxidation and Fenton-based processes - A review on the relevance of materials and methods. CHEMOSPHERE 2022; 307:135763. [PMID: 35952792 DOI: 10.1016/j.chemosphere.2022.135763] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
In recent years, there has been an increasingly growing interest regarding the use of electrochemical advanced oxidation processes (EAOPs) which are considered highly promising alternative treatment techniques for addressing environmental issues related to pollutants of emerging concern. In EAOPs, electrogenerated oxidizing agents, such as hydroxyl radical (HO•), can react non-selectively with a wide range of organic compounds, degrading and mineralizing their structures to unharmful molecules like CO2, H2O, and inorganic ions. To this date, a broad spectrum of advanced electrocatalysts have been developed and applied for the treatment of compounds of interest in different matrices, specifically aiming at enhancing the degradation performance. New combined methods have also been employed as alternative treatment techniques targeted at circumventing the major obstacles encountered in Fenton-based processes, such as high costs and energy consumption, which still contribute significantly toward inhibiting the large-scale application of these processes. First, some fundamental aspects of EAOPs will be presented. Further, we will provide an overview of electrode materials which have been recently developed and reported in the literature, highlighting different anode and cathode structures employed in EAOPs, their main advantages and disadvantages, as well as their contribution to the performance of the treatment processes. The influence of operating parameters, such as initial concentrations, pH effect, temperature, supporting electrolyte, and radiation source, on the treatment processes were also studied. Finally, hybrid techniques which have been reported in the literature and critically assess the most recent techniques used for evaluating the degradation efficiency of the treatment processes.
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Affiliation(s)
- Mauro C Santos
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil.
| | - Vanessa S Antonin
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil
| | - Felipe M Souza
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil; Departamento de Química, Instituto Federal de Educação, Ciência e Tecnologia Goiano, BR-153, Km 633, Zona Rural, CEP: 75650-000, Morrinhos, GO, Brazil
| | - Luci R Aveiro
- São Paulo Federal Institute of Education, Science and Technology, Rua Pedro Vicente, 625, Canindé São Paulo, CEP: 01109-010, SP, Brazil
| | - Victor S Pinheiro
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil
| | - Tuani C Gentil
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil
| | - Thays S Lima
- Department of Chemistry, Institute of Chemical and Pharmaceutical Environmental Sciences, Federal University of São Paulo (UNIFESP), Rua Prof. Artur Riedel, n 275 - Jd. Eldorado, CEP: 09972-270, Diadema, SP, Brazil
| | - João P C Moura
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil
| | - Carolina R Silva
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil
| | - Lanna E B Lucchetti
- Laboratory of Eletrochemistry and Nanostructured Materials (LEMN) Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), CEP: 09210-170, Rua Santa Adélia 166, Bairro Bangu, Santo André, SP, Brazil
| | - Lucia Codognoto
- Department of Chemistry, Institute of Chemical and Pharmaceutical Environmental Sciences, Federal University of São Paulo (UNIFESP), Rua Prof. Artur Riedel, n 275 - Jd. Eldorado, CEP: 09972-270, Diadema, SP, Brazil
| | - Irma Robles
- Center for Research and Technological Development in Electrochemistry, S.C., Parque Tecnológico Querétaro, 76703, Sanfandila, Pedro Escobedo, Querétaro, Mexico
| | - Marcos R V Lanza
- São Carlos Institute of Chemistry (IQSC), University of São Paulo (USP), Avenida Trabalhador São-carlense 400, São Carlos, SP, 13566-590, Brazil
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50
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Aldeen EMS, Jalil AA, Mim RS, Alhebshi A, Hassan NS, Saravanan R. Altered zirconium dioxide based photocatalyst for enhancement of organic pollutants degradation: A review. CHEMOSPHERE 2022; 304:135349. [PMID: 35714961 DOI: 10.1016/j.chemosphere.2022.135349] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/10/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Heterogeneous advanced oxidation processes are a promising approach for cost-efficient removal of pollutants using semiconductors. Zirconium dioxide (ZrO2) is an auspicious material for photocatalytic activity owning to its suitable bandgap, stability, and low cost. However, ZrO2 suffers from fast recombination rate, and poor light harvesting ability. Nonetheless, extra modification has also shown improvements and therefore is worth investigating. The endeavour of this paper initially discusses the fundamentals with respect to reactive species, classification, and synthesis methods for ZrO2. Furthermore, with particular consideration to stability and reusability, several additional modification approaches for ZrO2-based photocatalysts such as doping and noble metals loading. Furthermore, the formation of heterojunctions has also been shown to boost photocatalytic activity while inhibiting charge carrier recombination. Finally, photocatalyst separation via magnetic-based photocatalysts are elucidated. As a result, ZrO2-based photocatalysts are regarded as a promising emerging technology that warrants further development and research.
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Affiliation(s)
- E M Sharaf Aldeen
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, 81310, Johor, Malaysia
| | - A A Jalil
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, 81310, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, UTM Johor Bahru, 81310, Johor, Malaysia.
| | - R S Mim
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, 81310, Johor, Malaysia
| | - A Alhebshi
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, 81310, Johor, Malaysia
| | - N S Hassan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, 81310, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, UTM Johor Bahru, 81310, Johor, Malaysia
| | - R Saravanan
- Faculty of Engineering, Department of Mechanical Engineering, University of Tarapacá, Avda, General Velasquez, 1775, Arica, Chile
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