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Mhlongo NL, Akharame MO, Pereao O, Human IS, Opeolu BO. Phenolic compounds occurrence and human health risk assessment in potable and treated waters in Western Cape, South Africa. FRONTIERS IN TOXICOLOGY 2024; 5:1269601. [PMID: 38239933 PMCID: PMC10794607 DOI: 10.3389/ftox.2023.1269601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 11/28/2023] [Indexed: 01/22/2024] Open
Abstract
Phenolic pollutants from industrial and agricultural activities pose a major threat to the world's potable water supply. The persistent micro-pollutants often find their way into drinking water sources with possible adverse human health implications. In this study, bottled water, tap water, and wastewater treatment plant (WWTP) effluent samples from the Boland region of the Western Cape, South Africa were assessed to determine 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) levels using HPLC/DAD instrumentation. The selected area is known for its vast agricultural ventures and wineries. Evaluation of the human health risk (cancer risk) for the pollutants was conducted using the hazard quotient (HQ). The Ames mutagenicity test was also conducted using the Salmonella typhimurium T98 and T100 strains and the S9 activation enzyme. Trace levels of the phenolics were detected in the samples with a range of 9.32 × 10-7-1.15 × 10-4 mg/L obtained for 4-CP, and 8.80 × 10-7-1.72 × 10-4 mg/L recorded for 2,4-DCP. Both compounds had levels below the limit of 0.01 mg/L prescribed by South African legislation. The assessed HQ for the phenolic concentrations indicates a low level of potential ecological risk and none of the samples had a cancer risk value that exceeded the regulatory limit. The possibility of the analyzed samples causing cancer is unlikely, but non-carcinogenic adverse effects were found. Strong mutagenicity was observed for the T98 strains with a potential ability to cause mutation toward the insertion or deletion of a nucleotide. The T100 bacterial strain showed very slight mutagenicity potential, however, it is unlikely to cause any mutation. The levels of phenolics in the potable water samples may pose a significant threat to human health. Hence, screening persistent organic chemicals in potable water sources and evaluating their potential human health effects is pertinent to prevent associated health challenges.
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Affiliation(s)
- Nkosiyenzile Londiwe Mhlongo
- Department of Environmental and Occupational Studies, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Michael Ovbare Akharame
- Department of Environmental Management and Toxicology, University of Benin, Benin-City, Nigeria
| | - Omoniyi Pereao
- Department of Environmental and Occupational Studies, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Izanne Susan Human
- Department of Environmental and Occupational Studies, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Beatrice Olutoyin Opeolu
- Environmental Chemistry and Toxicology Research Group, Cape Peninsula University of Technology, Cape Town, South Africa
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Li X, Wang Y, Wang N, Li M, Bai M, Xu J, Wang H. Effects of operating conditions on iron (hydr)oxides evolution and ciprofloxacin degradation in potassium ferrate-ozone stepwise oxidation system. J Environ Sci (China) 2024; 135:367-378. [PMID: 37778811 DOI: 10.1016/j.jes.2022.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 10/03/2023]
Abstract
In this study, a stepwise oxidation system of potassium ferrate (K2FeO4) combined with ozone (O3) was used to degrade ciprofloxacin (CIP). The effects of pH and pre-oxidation time of K2FeO4 on the evolution of K2FeO4 reduction products (iron (hydr)oxides) and CIP degradation were investigated. It was found that in addition to its own oxidation capacity, K2FeO4 can also influence the treatment effect of CIP by changing the catalyst content. The presence of iron (hydr)oxides effectively enhanced the mineralization rate of CIP by catalyzing ozonation. The pH value can influence the content and types of the components with catalytic ozonation effect in iron (hydr)oxides. The K2FeO4 pre-oxidation stage can produce more iron (hydr)oxides with catalytic components for subsequent ozonation, but the evolution of iron (hydr)oxides components was influenced by O3 treatment. It can also avoid the waste of oxidation capacity owing to the oxidation of iron (hydr)oxides by O3 and free radicals. The intermediate degradation products were identified by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Besides, the degradation pathways were proposed. Among the degradation products of CIP, the product with broken quinolone ring structure only appeared in the stepwise oxidation system.
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Affiliation(s)
- Xiaochen Li
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Yifan Wang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Ning Wang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Mei Li
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Maomao Bai
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Jingtao Xu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Hongbo Wang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China; Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan 250101, China.
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Yadav S, Kumar S, Haritash AK. A comprehensive review of chlorophenols: Fate, toxicology and its treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118254. [PMID: 37295147 DOI: 10.1016/j.jenvman.2023.118254] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/28/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
Chlorophenols represent one of the most abundant families of toxic pollutants emerging from various industrial manufacturing units. The toxicity of these chloroderivatives is proportional to the number and position of chlorine atoms on the benzene ring. In the aquatic environment, these pollutants accumulate in the tissues of living organisms, primarily in fishes, inducing mortality at an early embryonic stage. Contemplating the behaviour of such xenobiotics and their prevalence in different environmental components, it is crucial to understand the methods used to remove/degrade the chlorophenol from contaminated environment. The current review describes the different treatment methods and their mechanism towards the degradation of these pollutants. Both abiotic and biotic methods are investigated for the removal of chlorophenols. Chlorophenols are either degraded through photochemical reactions in the natural environment, or microbes, the most diverse communities on earth, perform various metabolic functions to detoxify the environment. Biological treatment is a slow process because of the more complex and stable structure of pollutants. Advanced Oxidation Processes are effective in degrading such organics with enhanced rate and efficiency. Based on their ability to generate hydroxyl radicals, source of energy, catalyst type, etc., different processes such as sonication, ozonation, photocatalysis, and Fenton's process are discussed for the treatment or remediation efficiency towards the degradation of chlorophenols. The review entails both advantages and limitations of treatment methods. The study also focuses on reclamation of chlorophenol-contaminated sites. Different remediation methods are discussed to restore the degraded ecosystem back in its natural condition.
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Affiliation(s)
- Shivani Yadav
- Department of Environmental Engineering, Delhi Technological University, Shahbad Daulatpur, Delhi, 110042, India.
| | - Sunil Kumar
- Solaris Chemtech Industries, Bhuj, Gujarat, India
| | - A K Haritash
- Department of Environmental Engineering, Delhi Technological University, Shahbad Daulatpur, Delhi, 110042, India
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State of Art and Perspectives in Catalytic Ozonation for Removal of Organic Pollutants in Water: Influence of Process and Operational Parameters. Catalysts 2023. [DOI: 10.3390/catal13020324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The number of organic pollutants detected in water and wastewater is continuously increasing thus causing additional concerns about their impact on public and environmental health. Therefore, catalytic processes have gained interest as they can produce radicals able to degrade recalcitrant micropollutants. Specifically, catalytic ozonation has received considerable attention due to its ability to achieve advanced treatment performances at reduced ozone doses. This study surveys and summarizes the application of catalytic ozonation in water and wastewater treatment, paying attention to both homogeneous and heterogeneous catalysts. This review integrates bibliometric analysis using VOS viewer with systematic paper reviews, to obtain detailed summary tables where process and operational parameters relevant to catalytic ozonation are reported. New insights emerging from heterogeneous and homogenous catalytic ozonation applied to water and wastewater treatment for the removal of organic pollutants in water have emerged and are discussed in this paper. Finally, the activities of a variety of heterogeneous catalysts have been assessed using their chemical–physical parameters such as point of zero charge (PZC), pKa, and pH, which can determine the effect of the catalysts (positive or negative) on catalytic ozonation processes.
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Javed F, Tariq A, Ikhlaq A, Rizvi OS, Ikhlaq U, Masood Z, Qazi UY, Qi F. Application of Laboratory-Grade Recycled Borosilicate Glass Coated with Iron and Cobalt for the Removal of Methylene Blue by Catalytic Ozonation Process. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07437-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Babar M, Munir HMS, Nawaz A, Ramzan N, Azhar U, Sagir M, Tahir MS, Ikhlaq A, Mohammad Azmin SNH, Mubashir M, Khoo KS, Chew KW. Comparative study of ozonation and ozonation catalyzed by Fe-loaded biochar as catalyst to remove methylene blue from aqueous solution. CHEMOSPHERE 2022; 307:135738. [PMID: 35850223 DOI: 10.1016/j.chemosphere.2022.135738] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/30/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Ozone-based processes gained much attention in recent years. However, due to low oxidative stability and utilization rate, single ozonation process (SOP) is insufficient for complete mineralization of pollutants. As a result, the single ozonation process is performed in the presence of a catalyst, a process known as catalytic ozonation process (COP). A promising catalyst (Fe/BC) was prepared by impregnating iron on biochar surface to remove methylene blue from aqueous solution via heterogeneous catalytic ozonation process (HCOP). The prepared Fe/BC features were characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and Brunauer-Emmett-Teller method (BET) before and after HCOP. Furthermore, the effect of various operating parameters such as ozone dose, catalyst dose, initial dye concentration, initial pH on the efficiency of SOP and HCOP were compared. In comparison to single ozonation process, the experimental study found that heterogeneous catalytic ozonation process has the highest efficiency. At pH 7.0, approximately 76% of methylene blue is removed during single ozonation process in 60 min. Heterogeneous catalytic ozonation process showed 95% methylene blue elimination from aqueous solution. The efficiency of heterogeneous catalytic ozonation process was decreased by 52% in the presence of hydroxyl radical (●OH) scavenger, indicating that hydroxyl is the major oxidant during heterogeneous catalytic ozonation process for the removal of methylene blue from aqueous solution. Fe/BC catalyst appears to have a lot of industrial promise, as well as the ability to remove methylene blue from aqueous solution via heterogeneous catalytic ozonation process.
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Affiliation(s)
- Muhammad Babar
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology (KFUEIT), Abu Dhabi Rd, Rahim Yar Khan, 64200, Pakistan
| | - Hafiz Muhammad Shahzad Munir
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology (KFUEIT), Abu Dhabi Rd, Rahim Yar Khan, 64200, Pakistan; Chemical Engineering Department, University of Engineering and Technology, Lahore, 54890, Pakistan.
| | - Aamna Nawaz
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology (KFUEIT), Abu Dhabi Rd, Rahim Yar Khan, 64200, Pakistan
| | - Naveed Ramzan
- Chemical Engineering Department, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Umair Azhar
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology (KFUEIT), Abu Dhabi Rd, Rahim Yar Khan, 64200, Pakistan.
| | - Muhammad Sagir
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology (KFUEIT), Abu Dhabi Rd, Rahim Yar Khan, 64200, Pakistan
| | - Muhammad Suleman Tahir
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology (KFUEIT), Abu Dhabi Rd, Rahim Yar Khan, 64200, Pakistan
| | - Amir Ikhlaq
- Institute of Environmental Engineering and Research, University of Engineering and Technology, Lahore, 54890, Pakistan
| | | | - Muhammad Mubashir
- Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000, Kuala Lumpur, Malaysia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
| | - Kit Wayne Chew
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, China; School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia.
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Beta-FeOOH/polyamide nanocomposites for the remediation of 4-chlorophenol from contaminated waters. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03007-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Tan Y, Cheng Z, Liu Y, Gao X, Liu S, Shen Z. Quantum parameter analysis of the adsorption mechanism by freshly formed ferric hydroxide for synthetic dye and antibiotic wastewaters. CHEMOSPHERE 2021; 280:130577. [PMID: 33971408 DOI: 10.1016/j.chemosphere.2021.130577] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/24/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
In this study, the adsorption effect by freshly formed ferric hydroxide (FFFH) for the removal of 47 synthetic dye and antibiotic wastewaters under different pH conditions (i.e., pH = 4, 7, and 10) was investigated. The average total organic carbon (TOC) removal rates (Rexp) of pollutants under acidic, neutral, and alkaline conditions were 27.10 ± 3.21%, 15.16 ± 2.48%, and 9.72 ± 2.81%, respectively. By analyzing the characteristics of FFFH measured by SEM, XRD, FT-IR, TGA and BET, the properties of pollutants, and the values of Rexp, one can conclude that the large specific surface area and rich hydroxyl groups on the surface of FFFH were the reasons for its adsorption capacity for organic pollutants, and the electrostatic adsorption was the main reason for higher removal rate in acidic condition. Subsequently, to better elucidate the intrinsic factors influencing the removal rates at the molecular structure level, three optimal quantitative structure-activity relationship (QSAR) models were established by using multiple linear regression (MLR) analysis. Results of model validations (e.g., regression coefficient, internal and external verifications, and Y-randomization) showed that the established models exhibited excellent stability, reliability, and robustness with the values of R2 = 0.7544, 0.7764, 0.7528, Q2INT = 0.6451, 0.6836, 0.6228, and Q2EXT = 0.5890, 0.6029, 0.7298 under acidic, neutral, and alkaline conditions, respectively. The results of quantum parameter analysis revealed that the adsorption mechanism of FFFH for dyes and antibiotics mainly includes the activity of adsorption site, the behavior of electron transfer and the strength of molecular polarity.
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Affiliation(s)
- Yujia Tan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhiwen Cheng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yawei Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaoping Gao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Shiqiang Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhemin Shen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China; Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China.
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9
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Zhang S, Ou X, Yang X, Wang D, Zhang C. Preparation and properties of Al3+-doped BiVO4 semiconductor photocatalyst. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138747] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Yang QQ, Chen XL, He Y, Lai JQ, Xiong Y, Shen Q, Zhou XC, Shao B, Ma YL, Guo DL, Li KJ, Li CH, Chen DM. Preparation of monodisperse SiO 2 nanorods with hollow structure and parameters affecting the length-diameter ratio. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2020.1728302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Qi Qi Yang
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
| | - Xiao Li Chen
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
| | - Ying He
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
| | - Jia Qi Lai
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
| | - Yi Xiong
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
| | - Qian Shen
- Center of Material Analysis and Testing, ChongQing University of Science and Technology, ChongQing, China
| | - Xing Chao Zhou
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
| | - Bin Shao
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
- College of Material Science and Engineering, ChongQing University of Technology, ChongQing, China
| | - Yi Long Ma
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
| | - Dong Lin Guo
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
- College of Material Science and Engineering, ChongQing University of Technology, ChongQing, China
| | - Ke Jian Li
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
- College of Material Science and Engineering, ChongQing University of Technology, ChongQing, China
| | - Chun Hong Li
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
- College of Material Science and Engineering, ChongQing University of Technology, ChongQing, China
| | - Deng Ming Chen
- School of Metallurgy and Material Engineering, ChongQing University of Science and Technology, ChongQing, China
- College of Material Science and Engineering, ChongQing University of Technology, ChongQing, China
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Korotcenkov G, Nehasil V. Ozone Sensing by In 2O 3 Films Modified with Rh: Dimension Effect. SENSORS 2021; 21:s21051886. [PMID: 33800333 PMCID: PMC7962652 DOI: 10.3390/s21051886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/17/2021] [Accepted: 03/02/2021] [Indexed: 11/16/2022]
Abstract
We considered the effect of coverage of the surface of In2O3 films with rhodium on the sensitivity of their electrophysical properties to ozone (1 ppm). The surface coverage with rhodium varied in the range of 0–0.1 ML. The In2O3 films deposited by spray pyrolysis had a thickness of 40–50 nm. The sensor response to ozone depends on the degree of rhodium coverage. This dependence has a pronounced maximum at a coverage of ~0.01 ML of Rh. An explanation is given for this effect. It is concluded that the observed changes are associated with the transition from the atomically dispersed state of rhodium to a 3D cluster state.
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Affiliation(s)
- Ghenadii Korotcenkov
- Department of Theoretical Physics, State University of Moldova, MD 2009 Chisinau, Moldova
- Correspondence:
| | - Vaclav Nehasil
- Department of Surface and Plasma Science, Charles University, CZ-18000 Prague, Czech Republic;
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Catalytic ozonation with silicate-based microfiltration membrane for the removal of iopamidol in aqueous solution. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117873] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Rekhate CV, Srivastava J. Recent advances in ozone-based advanced oxidation processes for treatment of wastewater- A review. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100031] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Tong X, Li Z, Chen W, Wang J, Li X, Mu J, Tang Y, Li L. Efficient catalytic ozonation of diclofenac by three-dimensional iron (Fe)-doped SBA-16 mesoporous structures. J Colloid Interface Sci 2020; 578:461-470. [PMID: 32535428 DOI: 10.1016/j.jcis.2020.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/30/2020] [Accepted: 06/01/2020] [Indexed: 11/24/2022]
Abstract
The removal of diclofenac (DCF) that causes risks to the environment and human health remains a great challenge due to the inefficiency of conventional physical methods. In this work, an efficient catalytic ozonation of DCF is achieved from a novel iron-doped SBA-16 (Fe-SBA-16) three-dimensional (3D) mesoporous structure. The Fe-SBA-16/ozonation (O3) system exhibits enhanced catalytic activity towards DCF mineralization (up to 79.3% in 1.5 h), which is 1.2 times of its counterpart, Fe-MCM-41, and 2.4 times of the sole ozonation without catalysts. The unique 3D mesoporous structures accelerate the mass transfer and meanwhile result in higher ozone utilization efficiency for more effective generation of active species, hence enhancing the DCF mineralization efficiency. We believe the well-defined Fe-SBA-16 catalyst coupled with their enhanced catalytic ozonation performances will provide new insights into the construction of mesoporous structured materials to eliminate hazards in aqueous solutions for the environment remediation.
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Affiliation(s)
- Xinyuan Tong
- School of Environment, South China Normal University, Guangzhou 510006, China
| | - Zhidong Li
- School of Environment, South China Normal University, Guangzhou 510006, China
| | - Weirui Chen
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou 510006, China
| | - Jing Wang
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou 510006, China.
| | - Xukai Li
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou 510006, China
| | - Jiaxin Mu
- School of Environment, South China Normal University, Guangzhou 510006, China
| | - Yiming Tang
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou 510006, China
| | - Laisheng Li
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou 510006, China.
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Wang M, Gao Q, Zhang M, Zhang M, Zhang Y, Hu J, Wu G. In-situ formation of durable akaganeite (β-FeOOH) nanorods on sulfonate-modified poly(ethylene terephthalate) fabric for dual-functional wastewater treatment. JOURNAL OF HAZARDOUS MATERIALS 2020; 386:121647. [PMID: 31740304 DOI: 10.1016/j.jhazmat.2019.121647] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/02/2019] [Accepted: 11/07/2019] [Indexed: 06/10/2023]
Abstract
Industrial oily wastewater with dye-pollution is a critical environmental issue for water purification. However, the fabrication of effective and stable materials for oil-water separation and simultaneous degradation of organic contaminants remains a critical challenge. Herein, we report a new process for in-situ formation of akaganeite (β-FeOOH) nanorods layer on the surface of poly(ethylene terephthalate) (PET) fabric via radiation-induced graft polymerization of glycidyl methacrylate, which is then sulfonated and mineralized. The resultant product is labeled as β-FeOOH@PET, which exhibits dual purification by demonstrating an effective oil-water separation and organic dyes photodegradation under the illumination of visible light. It provides stable performance even after 1000 wash cycles. The sulfonated layer acts as not only an electronic transport layer to prevent electron-hole recombination, but also as an anchored interface for immobilizing β-FeOOH nanorods on the sulfonated layer via strong covalent bonds. Overall, the superhydrophilicity and underwater superoleophobicity of β-FeOOH@PET fabric, along with its robustness with a flexible organic substrate and its dual purification function, provide a new insight toward oily wastewater remediation and water purification in large-scale applications.
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Affiliation(s)
- Minglei Wang
- CAS Center for Excellence on TMSR Energy System, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019 Jialuo Road, Jiading District, Shanghai 201800, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qianhong Gao
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing 210094, Jiangsu Province, China
| | - Maojiang Zhang
- CAS Center for Excellence on TMSR Energy System, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019 Jialuo Road, Jiading District, Shanghai 201800, China; School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Mingxing Zhang
- CAS Center for Excellence on TMSR Energy System, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019 Jialuo Road, Jiading District, Shanghai 201800, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yumei Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, China
| | - Jiangtao Hu
- CAS Center for Excellence on TMSR Energy System, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019 Jialuo Road, Jiading District, Shanghai 201800, China.
| | - Guozhong Wu
- CAS Center for Excellence on TMSR Energy System, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019 Jialuo Road, Jiading District, Shanghai 201800, China; School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China.
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16
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Liu Y, Shen J, Zhao L, Wang W, Gong W, Zheng F. Zinc-iron silicate for heterogeneous catalytic ozonation of acrylic acid: efficiency and mechanism. RSC Adv 2020; 10:9146-9154. [PMID: 35496557 PMCID: PMC9050035 DOI: 10.1039/d0ra00308e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 02/21/2020] [Indexed: 11/21/2022] Open
Abstract
This research aimed at researching the degradation of acrylic acid (AA) in aqueous solution, by catalytic and non-catalytic ozonation processes performed in a semi-continuous reactor. Zinc–iron silicate was synthesized and characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) analysis, Fourier transformation infrared (FT-IR) and energy dispersive spectrometry (EDS). The characterization studies showed that Fe–Si binary oxide, Zn–Si binary oxide, ZnO and Fe2O3 deposits were formed on the surface of poor crystallinity zinc–iron silicate which contained abundant functional groups. Catalytic ozonation test results revealed that zinc–iron silicate exhibited high catalytic activity and stability in catalytic ozonation of AA in aqueous solution. The inclusion of zinc–iron silicate in the ozonation process enhanced AA decomposition by 28.7% and TOC removal by 20%, compared to the ozonation alone. The main AA removal mechanisms involved direct oxidation by ozone and indirect oxidation by hydroxyl radicals generated by the ozone chain reaction accelerated by zinc–iron silicate. The surface characteristics and chemical composition are significant factors determining the catalytic activity of zinc–iron silicate. Zinc–iron silicate was synthesized, and exhibited high activity and stability for catalytic ozonation under semi-continuous conditions.![]()
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Affiliation(s)
- Yue Liu
- School of Energy & Environment Engineering, Zhongyuan University of Technology Zhongyuan Road 47 Zhengzhou China .,State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology Harbin 150090 China
| | - Jimin Shen
- State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology Harbin 150090 China
| | - Laiqun Zhao
- School of Energy & Environment Engineering, Zhongyuan University of Technology Zhongyuan Road 47 Zhengzhou China
| | - Weiqiang Wang
- State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology Harbin 150090 China
| | - Weijin Gong
- School of Energy & Environment Engineering, Zhongyuan University of Technology Zhongyuan Road 47 Zhengzhou China
| | - Fanfan Zheng
- School of Energy & Environment Engineering, Zhongyuan University of Technology Zhongyuan Road 47 Zhengzhou China
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17
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Wang J, Chen H. Catalytic ozonation for water and wastewater treatment: Recent advances and perspective. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 704:135249. [PMID: 31837842 DOI: 10.1016/j.scitotenv.2019.135249] [Citation(s) in RCA: 252] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/26/2019] [Accepted: 10/27/2019] [Indexed: 05/18/2023]
Abstract
Ozonation process has been widely applied in water and wastewater treatment, such as for disinfection, for degradation of toxic organic pollutants. However, the utilization efficiency of ozone is low and the mineralization of organic pollutants by ozone oxidation is ineffective, and some toxic disinfection byproducts (DBPs) may be formed during ozonation process. Catalytic ozonation process can overcome these problems to some extent, which has received increasing attention in recent years. During catalytic ozonation, catalysts can promote O3 decomposition and generate active free radicals, which can enhance the degradation and mineralization of organic pollutants. In this paper, the history of ozonation application in water treatment was briefly reviewed. The properties of the ozone molecule, the ozonation types and several ozone-based water treatment processes were briefly introduced. Various catalysts for catalytic ozonation, including homogeneous and heterogeneous catalysts, such as metal ions, metal oxidizes, carbon-based materials and their possible catalytic mechanisms were analyzed and summarized in detail. Furthermore, some inconsistent results of previous research on catalytic ozonation were analyzed and discussed. The application of catalytic oxidation for the degradation of toxic organic pollutants, including phenols, pesticides, dyes, pharmaceuticals and others, was summarized. Finally, several key aspects of catalytic ozonation, such as pH effect, the catalyst performance, the catalytic mechanism were proposed, to which more attention should be paid in future study.
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Affiliation(s)
- Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory of Radioactive Waste Treatment, Tsinghua University, Beijing 100084, China.
| | - Hai Chen
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China
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18
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Wang J, Li X, Cheng Q, Lv F, Chang C, Zhang L. Construction of β-FeOOH@tunicate cellulose nanocomposite hydrogels and their highly efficient photocatalytic properties. Carbohydr Polym 2020; 229:115470. [DOI: 10.1016/j.carbpol.2019.115470] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 10/12/2019] [Accepted: 10/12/2019] [Indexed: 01/24/2023]
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19
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20
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Akharame MO, Fatoki OS, Opeolu BO, Olorunfemi DI, Oputu OU. Comparative time-based intermediates study of ozone oxidation of 4-chloro- and 4-nitrophenols followed by LCMS-TOF. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2019; 55:385-401. [PMID: 31852365 DOI: 10.1080/10934529.2019.1701340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 11/18/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
Greater insights on the degradation pathways and intermediates formed during the oxidation of organics can be achieved by more suitable and compatible instrumentation. In our research, we sought to explore the relative advantages of the liquid chromatography coupled to a time of flight mass spectrometer (LCMS-TOF) technique for the comparative time-based degradation intermediates and pathways of 4-chlorophenol (4CP) and 4-nitrophenol (4NP). The ozonation of the analytes solution (100 mL of 2 x 10-3 M) was done in a sintered glass reactor, with an ozone dose of 0.14 mg min-1 (O2/O3 10 mL/min). The comparative oxidation results revealed that the 4-chloro- and 4-nitrocatechol pathways via hydroxylation were the major degradation route for 4CP and 4NP. Catechol intermediate was present as a primary breakdown product for the two analytes. Hydroquinone was observed as transient degradation intermediate for 4CP, but was absent for 4NP. Rather, a novel ozonation intermediate 2, 4-dinitrophenol was identified which was further oxidized to 3,6-dinitrocatechol. Several dimer products were identified in the oxidation processes, favored by alkaline conditions with more versatility shown by 4CP. The study provided a great insight into the ozone degradation intermediates and pathways, with some intermediates scarce in literature identified.
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Affiliation(s)
- Michael Ovbare Akharame
- Department of Chemistry, Cape Peninsula University of Technology, Cape Town, South Africa
- Department of Environmental Management and Toxicology, University of Benin, Benin-City, Nigeria
| | | | - Beatrice Olutoyin Opeolu
- Department of Environmental and Occupational Health, Cape Peninsula University of Technology, Cape Town, South Africa
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21
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Hasani M, Khani MR, Karimaei M, Yaghmaeian K, Shokri B. Degradation of 4-chlorophenol in aqueous solution by dielectric barrier discharge system: effect of fed gases. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2019; 17:1185-1194. [PMID: 32030184 PMCID: PMC6985379 DOI: 10.1007/s40201-019-00433-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 12/23/2019] [Indexed: 06/05/2023]
Abstract
A dielectric barrier discharge system with a discharging zone where degradation processes happen is designed to remove 4-chlorophenol from water. The removal of 4-chlorophenol was influenced by the processing parameters such as gas flow rate, flow ratio of oxygen and argon, applied voltage and total applied power. Increasing the power or gas flow rates within a certain range enhanced the removal efficiency. 99% of 4-chlorophenol was removed in 6.5 min at reactor's efficient point which is set by adjusting the flow ratio of introduced gases and voltage. The removal percent was about 95% at 5 min of non-thermal plasma treatment with peak voltage of 10 kV and oxygen and argon flow rate of 20 SCCM and 200 SCCM respectively. Then by adjusting the flow ratios in order to find the optimum point. At this point the efficiency reached its peak due to excessive introduction oxygen gas which results in production of more oxidative agents. HPLC and GC-MS analysis have been carried out in order to investigate the by-products of degradation process. After 6.5 min of treatment at efficient point of degradation reactor, a 64% decrease in COD index has been indicated.
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Affiliation(s)
- Mohammad Hasani
- Department of Physics, Shahid Beheshti University, Tehran, 19839-63113 Iran
| | - Mohammad-Reza Khani
- Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, 19839-63113 Iran
| | - Mostafa Karimaei
- Department of Environmental Health Engineering, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran
| | - Kamyar Yaghmaeian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Babak Shokri
- Department of Physics, Shahid Beheshti University, Tehran, 19839-63113 Iran
- Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, 19839-63113 Iran
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22
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Lyu C, He D, Mou Z, Yang X. Synergetic activation of peroxymonosulfate by MnO 2-loaded β-FeOOH catalyst for enhanced degradation of organic pollutant in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 693:133589. [PMID: 31635017 DOI: 10.1016/j.scitotenv.2019.133589] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/19/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
In this paper, manganese dioxide (MnO2) loaded iron oxyhydroxide (β-FeOOH) was synthesized aiming to improve the catalytic performance of β-FeOOH as peroxymonosulfate activator. The β-FeOOH@MnO2/PMS system exhibited excellent performance and its reaction rate constant of Acid Orange 7 (AO7) degradation (0.0533 min-1) was approximately 2.3 times as that in β-FeOOH/PMS system (0.0232 min-1). β-FeOOH@MnO2 possessed superior properties as catalyst than β-FeOOH, owing to the higher surface hydroxyl density with higher specific surface area, redox ability and electronic transmission rate. Moreover, on the basis of the analysis from FTIR and XPS, it was found that the redox reaction of Fe3+/Fe2+ and Mn4+/Mn3+ synergistically activated PMS as well as the generation of FeOH+ and MnOH2+ accelerated activating PMS in the β-FeOOH@MnO2/PMS system. Thus, MnO2 and FeOOH synergistically activated PMS to reactive oxygen species (ROS). And 1O2, O2- and OH were identified as predominant ROS in the β-FeOOH@MnO2/PMS system on the basis of the result from quenching experiments and ESR. As a result, TOC removal rate was increased up to 22.62%. Additionally, β-FeOOH@MnO2 exhibited good stability with low iron dissolution and manganese dissolution. Generally, this study proposed that β-FeOOH@MnO2 was an efficient and environmental catalyst as PMS activator for organic pollutant degradation in water.
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Affiliation(s)
- Cong Lyu
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130026, PR China.
| | - Dan He
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130026, PR China
| | - Zishen Mou
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, PR China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil and Water Pollution, Chengdu University of Technology, Chengdu 610059, PR China
| | - Xuejiao Yang
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130026, PR China
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23
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Xue S, Xu X, Zhang L. Fabrication of Ecofriendly Recycled Marimo-like Hierarchical Micronanostructure Superhydrophobic Materials for Effective and Selective Separation of Oily Pollutants from Water. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06411] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shan Xue
- College of Chemistry, Liaoning University, 66 Chongshan Middle Road, Shenyang 110036, P.R. China
| | - Xu Xu
- College of Chemistry, Liaoning University, 66 Chongshan Middle Road, Shenyang 110036, P.R. China
| | - Lei Zhang
- College of Chemistry, Liaoning University, 66 Chongshan Middle Road, Shenyang 110036, P.R. China
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24
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Abstract
Catalytic ozonation is believed to belong to advanced oxidation processes (AOPs). Over the past decades, heterogeneous catalytic ozonation has received remarkable attention as an effective process for the degradation of refractory organics in wastewater, which can overcome some disadvantages of ozonation alone. Metal oxides, metals, and metal oxides supported on oxides, minerals modified with metals, and carbon materials are widely used as catalysts in heterogeneous catalytic ozonation processes due to their excellent catalytic ability. An understanding of the application can provide theoretical support for selecting suitable catalysts aimed at different kinds of wastewater to obtain higher pollutant removal efficiency. Therefore, the main objective of this review article is to provide a summary of the accomplishments concerning catalytic ozonation to point to the major directions for choosing the catalysts in catalytic ozonation in the future.
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25
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Lara-Ramos JA, Sánchez-Gómez K, Valencia-Rincón D, Diaz-Angulo J, Mueses M, Machuca-Martínez F. Intensification of the O3/TiO2/UV advanced oxidation process using a modified flotation cell. Photochem Photobiol Sci 2019; 18:920-928. [DOI: 10.1039/c8pp00308d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel approach for the ozone and TiO2 intensification process for wastewater treatment is presented using a modified flotation cell.
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Affiliation(s)
| | | | | | | | - Miguel Mueses
- Photocatalysis and Solar Photoreactors Engineering
- Modeling & Application of AOTs
- Department of Chemical Engineering
- Universidad de Cartagena
- Cartagena
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26
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The Selectivity of Different Sized Catalysts on DOM Fractional Removal during the Catalytic Ozonation of Municipal Sewage. Catalysts 2018. [DOI: 10.3390/catal9010014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Dissolved organic matter (DOM) is a typical kind of pollutant with a complex composition, and different advanced treatments demonstrate different abilities toward its fractional removal. Hence, it is necessary to analyze the fraction of DOM that remains when using advanced treatments. In this paper, ozonation was used to deal with the biological effluents and comparisons of the catalytic ozonation with different particle sizes of γ-Al2O3 were made. The results of these comparisons indicated that the catalysts were active in improving the removal of DOM and γ-Al2O3 with different particle sizes can selectively remove DOM. The result of fluorescence showed that a decrease in the catalyst particle size contributes to a significant decrease in the fluorescence intensity, except for tryptophan-like substances. Meanwhile, DOM fractions with large molecular weights could be decomposed into small molecules by ozonation, resulting in increased hydrophilicity. However, the use of a catalyst in ozonation increased the removal of hydrophilic components. Additionally, a smaller catalyst particle size increased the removal of hydrophilic components. The results of catalyst analysis implied that the surface hydroxyl groups of catalyst γ-Al2O3 and the diffusion of DOM in the catalyst γ-Al2O3 played important roles in the ozonation catalytic process for the removal of DOM.
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27
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Wang C, Li A, Shuang C. The effect on ozone catalytic performance of prepared-FeOOH by different precursors. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 228:158-164. [PMID: 30218902 DOI: 10.1016/j.jenvman.2018.08.103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 08/23/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
In this study, different precursors were used to prepare FeOOH and the ozonation catalytic activity was s investigate by using ibuprofen as the degradation substrate. It could be found that FeOOH prepared from ferric sulfate performed higher activity. Subsequently, the catalysts were characterized by X-ray diffraction, Fourier transform infrared spectrometer, scanning electron microscope and N2 adsorption-desorption techniques. X-ray diffraction and Fourier transform infrared spectrometer showed that the synthesized FeOOH consisted of α-FeOOH and β-FeOOH mainly. Scanning electron microscope showed that their appearance and morphology were significantly different, and the FeOOH prepared from ferric sulfate had a larger specific surface area, resulting in its better catalytic activity. Finally, the hydroxyl groups and pHzpc of the catalyst surface were measured. It was also found that the FeOOH prepared from ferric sulfate owned more hydroxyl groups and the pHzpc of the surface was closer to the pH of the degradation substrate, which illustrated the reasons for the increased catalytic activity. In addition, the degradation kinetics conformed to the pseudo first-order kinetic model and the hydroxyl radicals played an important role in the reaction process.
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Affiliation(s)
- Cheng Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Chendong Shuang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
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28
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Li X, Chen W, Ma L, Wang H, Fan J. Industrial wastewater advanced treatment via catalytic ozonation with an Fe-based catalyst. CHEMOSPHERE 2018; 195:336-343. [PMID: 29272802 DOI: 10.1016/j.chemosphere.2017.12.080] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 06/07/2023]
Abstract
An Fe-based catalyst was used as a heterogeneous catalyst for the ozonation of industrial wastewater, and key operational parameters (pH and catalyst dosage) were studied. The results indicated that the Fe-based catalyst significantly improved the mineralization of organic pollutants in wastewater. TOC (total organic carbon) removal was high, at 78.7%, with a catalyst concentration of 200 g/L, but only 31.6% with ozonation alone. The Fe-based catalyst significantly promoted ozone decomposition by 70% in aqueous solution. Hydroxyl radicals (·OH) were confirmed to be existed directly via EPR (electron paramagnetic resonance) experiments, and ·OH were verified to account for about 34.4% of TOC removal with NaHCO3 as a radical scavenger. Through characterization by SEM-EDS (field emission scanning electron microscope with energy-dispersive spectrometer), XRD (X-ray powder diffraction) and XPS (X-ray photoelectron spectroscopy), it was deduced that FeOOH on the surface of the catalyst was the dominant contributor to the catalytic efficiency. The catalyst was certified as having good stability and excellent reusability based on 50 successive operations and could be used as a filler simultaneously. Thereby, it is a promising catalyst for practical industrial wastewater advanced treatment.
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Affiliation(s)
- Xufang Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Weiyu Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Luming Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
| | - Hongwu Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Jinhong Fan
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Nangjing University & Yancheng Academy of Environmental Protection Technology and Engineering, Yancheng, Jiangsu Province, 224000, China
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29
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Chen C, Li Y, Ma W, Guo S, Wang Q, Li QX. Mn-Fe-Mg-Ce loaded Al 2 O 3 catalyzed ozonation for mineralization of refractory organic chemicals in petroleum refinery wastewater. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.03.054] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Liu Y, Wang S, Gong W, Chen Z, Liu H, Bu Y, Zhang Y. Heterogeneous catalytic ozonation of p-chloronitrobenzene (pCNB) in water with iron silicate doped hydroxylation iron as catalyst. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2016.10.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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31
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Structural characterizations of zinc-copper silicate polymer (ZCSP) and its mechanisms of ozonation for removal of p-chloronitrobenzene in aqueous solution. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.08.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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32
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Wu S, Lu J, Ding Z, Li N, Fu F, Tang B. Cr(vi) removal by mesoporous FeOOH polymorphs: performance and mechanism. RSC Adv 2016. [DOI: 10.1039/c6ra14522a] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The mesoporous FeOOH polymorphs, i.e., goethite (α-FeOOH), akaganeite (β-FeOOH), lepidocrocite (γ-FeOOH), and feroxyhyte (δ-FeOOH) were synthesized and characterized before and after reaction with Cr(vi) using various analytical techniques.
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Affiliation(s)
- Shijiao Wu
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jianwei Lu
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Zecong Ding
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Na Li
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Fenglian Fu
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Bing Tang
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
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33
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Oputu O, Chowdhury M, Nyamayaro K, Cummings F, Fester V, Fatoki O. A novel β-FeOOH/NiO composite material as a potential catalyst for catalytic ozonation degradation of 4-chlorophenol. RSC Adv 2015. [DOI: 10.1039/c5ra09177b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study we report on the organic linker mediated fabrication and catalytic activity of a novel β-FeOOH/NiO composite material for the first time.
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Affiliation(s)
- Ogheneochuko Oputu
- Department of Chemistry
- Cape Peninsula University of Technology
- Republic of South Africa
| | - Mahabubur Chowdhury
- Flow Process Research Centre
- Cape Peninsula University of Technology
- Republic of South Africa
| | - Kudzanai Nyamayaro
- Department of Chemistry
- Cape Peninsula University of Technology
- Republic of South Africa
| | - Franscious Cummings
- Electron Microscope Unit
- University of the Western Cape
- Republic of South Africa
| | - Veruscha Fester
- Department of Chemistry
- Cape Peninsula University of Technology
- Republic of South Africa
| | - Olalekan Fatoki
- Flow Process Research Centre
- Cape Peninsula University of Technology
- Republic of South Africa
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