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Li C, Shen C, Gao B, Liang W, Zhu Y, Shi W, Ai S, Xu H, Wu J, Sun Y. Degradation and mechanism of PFOA by peroxymonosulfate activated by nitrogen-doped carbon foam-anchored nZVI in aqueous solutions. CHEMOSPHERE 2024; 351:141209. [PMID: 38224751 DOI: 10.1016/j.chemosphere.2024.141209] [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: 08/23/2023] [Revised: 12/09/2023] [Accepted: 01/12/2024] [Indexed: 01/17/2024]
Abstract
Perfluorooctanoic acid (PFOA) is an emerging pollutant that is non-biodegradable and presents severe environmental and human health risks. In this study, we present an effective and mild approach for PFOA degradation that involves the use of nitrogen-doped carbon foam anchored with nanoscale zero-valent iron (nZVI@NCF) to activate low concentration peroxymonosulfate (PMS) for the treatment. The nZVI@NCF/PMS system efficiently removed 84.4% of PFOA (2.4 μM). The active sites of nZVI@NCF including Fe0 (110) and graphitic nitrogen played crucial roles in the degradation. Electrochemical analyses and density functional theory calculations revealed that nZVI@NCF acted as an electronic donor, transferring electrons to both PMS and PFOA during the reaction. By further analyzing the electron paramagnetic resonance and byproducts, it was determined that electron transfer and singlet oxygen were responsible for PFOA degradation. Three degradation pathways involving decarboxylation and surface reduction of PFOA in the nZVI@NCF/PMS system were determined. Finding from this study indicate that nZVI@NCF/PMS systems are effective in degrading PFOA and thus present a promising persulfate-advanced oxidation process technology for PFAS treatment.
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Affiliation(s)
- Changyu Li
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing, 210023, China.
| | - Cong Shen
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Bin Gao
- Department of Civil and Environmental Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Wenxu Liang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Yifan Zhu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Weijie Shi
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, China.
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Hongxia Xu
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing, 210023, China
| | - Jichun Wu
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing, 210023, China
| | - Yuanyuan Sun
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing, 210023, China.
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Zamani W, Rastgar S, Hedayati A, Tajari M, Ghiasvand Z. Solvent-thermal approach of MIL-100(Fe)/Cygnea/Fe 3O 4/TiO 2 nanocomposite for the treatment of lead from oil refinery wastewater (ORW) under UVA light. Sci Rep 2024; 14:4476. [PMID: 38396129 PMCID: PMC10891111 DOI: 10.1038/s41598-024-54897-x] [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: 10/27/2023] [Accepted: 02/18/2024] [Indexed: 02/25/2024] Open
Abstract
The main purpose of this research endeavor is to reduce lead concentrations in the wastewater of an oil refinery through the utilization of a material composed of oyster shell waste (MIL-100(Fe)/Cygnea/Fe3O4/TiO2. Initially, iron oxide nanoparticles (Fe3O4) were synthesized via solvent-thermal synthesis. It was subsequently coated layer by layer with the organic-metallic framework MIL-100 (Fe) using the core-shell method. Additionally, the solvent-thermal method was utilized to integrate TiO2 nanoparticles into the magnetic organic-metallic framework's structure. Varieties of analytical analysis were utilized to investigate the physical and chemical properties of the synthetic final photocatalyst. Nitrogen adsorption and desorption technique (BET), scanning electron microscopy (SEM), scanning electron diffraction pattern (XRD), and transmission electron microscopy (TEM). Following the characterization of the final photocatalyst, the physical and chemical properties of the nanoparticles synthesized in each step, several primary factors that significantly affect the removal efficiency in the advanced oxidation system (AOPs) were examined. These variables consist of pH, photocatalyst dosage, lead concentration, and reaction temperature. The synthetic photocatalyst showed optimal performance in the removal of lead from petroleum wastewater under the following conditions: 35 °C temperature, pH of 3, 0.04 g/l photocatalyst dosage, and 100 mg/l wastewater concentration. Additionally, the photocatalyst maintained a significant level of reusability after undergoing five cycles. The findings of the study revealed that the photocatalyst dosage and pH were the most influential factors in the effectiveness of lead removal. According to optimal conditions, lead removal reached a maximum of 96%. The results of this investigation showed that the synthetic photocatalyst, when exposed to UVA light, exhibited an extraordinary capacity for lead removal.
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Affiliation(s)
- Wahid Zamani
- Department of Environmental Science, Faculty of Natural Resources, University of Kurdistan, Sanandaj, 15175-66177, Iran.
| | - Saeedeh Rastgar
- Department of Environmental Sciences, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgān, 49189-43464, Iran.
| | - Aliakbar Hedayati
- Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgān, 49189-43464, Iran
| | - Mohsen Tajari
- Department of Fisheries, Bandargaz Branch, Islamic Azad University, Bandargaz, 48731-97179, Iran
| | - Zahra Ghiasvand
- Department of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Halifax, Canada
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3
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Jiang X, Tan Z, Jiang G, Liu C, Gao G, Liu Z. Novel Magnetic MnFe 2O 4-Decorated Graphite-Like Porous Biochar as a Heterogeneous Catalyst for Activation of Peroxydisulfate Toward Degradation of Rhodamine B. ACS OMEGA 2024; 9:6455-6465. [PMID: 38371805 PMCID: PMC10870279 DOI: 10.1021/acsomega.3c06278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/20/2024]
Abstract
A magnetic MnFe2O4-modified graphite-like porous biochar composite (MnFe2O4/KFS800) was synthesized by the hydrothermal method, and its catalytic activity was evaluated in the activation of peroxydisulfate toward degradation of Rhodamine B. After characterization by SEM, XRD, and the BET method, the specific surface area and total pore volume of the MnFe2O4/KFS800 catalyst reached 121 m2/g and 0.263 m3/g, and exhibited plate-like morphology with good crystallinity. The degradation rate of Rhodamine B by the obtained composite was more than 91.1% when the initial concentration of RhB was 10 mg/L, the dosage of MnFe2O4/KFS800 was 0.2 g/L, and the initial pH was 6.7. Then the anti-interference ability of the obtained composite was studied, and it was found that there was a little effect on the degradation of Rhodamine B with the presence of humic acid. Finally, quenching test, EPR research, and XPS analysis were conducted to reveal the catalytic mechanism, and possible mechanism was a synergistic behavior of free radicals (SO4•-, •OH, O2•-) and nonfree radicals (1O2), and trace amounts of uncarbonized bagasse was also involved in the formation of free radicals.
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Affiliation(s)
- Xinde Jiang
- School of Civil Engineering
and Architecture, Nanchang Institute of
Technology, Nanchang 330099, China
| | - Zhuoru Tan
- School of Civil Engineering
and Architecture, Nanchang Institute of
Technology, Nanchang 330099, China
| | - Guixian Jiang
- School of Civil Engineering
and Architecture, Nanchang Institute of
Technology, Nanchang 330099, China
| | - Chang Liu
- School of Civil Engineering
and Architecture, Nanchang Institute of
Technology, Nanchang 330099, China
| | - Guiqing Gao
- School of Civil Engineering
and Architecture, Nanchang Institute of
Technology, Nanchang 330099, China
| | - Zhanmeng Liu
- School of Civil Engineering
and Architecture, Nanchang Institute of
Technology, Nanchang 330099, China
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Moavenzadeh Ghaznavi S, Zimmerman C, Shea ME, MacRae JD, Peckenham JM, Noblet CL, Apul OG, Kopec AD. Management of per- and polyfluoroalkyl substances (PFAS)-laden wastewater sludge in Maine: Perspectives on a wicked problem. Biointerphases 2023; 18:041004. [PMID: 37602771 DOI: 10.1116/6.0002796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 07/21/2023] [Indexed: 08/22/2023] Open
Abstract
This article discusses the challenges and potential solutions for managing wastewater sludge that contains per- and polyfluoroalkyl substances (PFAS), using the experience in Maine as a guide toward addressing the issue nationally. Traditional wastewater treatment, designed to remove excess organic waste and nutrients, does not eliminate persistent toxic pollutants like PFAS, instead partitioning the chemicals between discharged effluent and the remaining solids in sludge. PFAS chemistry, the molecular size, the alkyl chain length, fluorine saturation, the charge of the head group, and the composition of the surrounding matrix influence PFAS partitioning between soil and water. Land application of sludge, incineration, and storage in a landfill are the traditional management options. Land application of Class B sludge on agricultural fields in Maine peaked in the 1990s, totaling over 2 × 106 cu yd over a 40-year period and has contaminated certain food crops and animal forage, posing a threat to the food supply and the environment. Additional Class A EQ (Exceptional Quality) composted sludge was also applied to Maine farmland. The State of Maine banned the land application of wastewater sludge in August 2022. Most sludge was sent to the state-owned Juniper Ridge Landfill, which accepted 94 270 tons of dewatered sludge in 2022, a 14% increase over 2019. Between 2019 and 2022, the sum of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) concentrations in sludge sent to the landfill ranged from 1.2 to 104.9 ng/g dw. In 2022, the landfill generated 71.6 × 106 l of leachate. The concentration of sum of six PFAS in the leachate increased sixfold between 2021 and 2022, reaching 2 441 ng/l. The retention of PFAS within solid-waste landfills and the potential for long-term release of PFAS through liners into groundwater require ongoing monitoring. Thermal treatment, incineration, or pyrolysis can theoretically mineralize PFAS at high temperatures, yet the strong C-F bond and reactivity of fluorine require extreme temperatures for complete mineralization. Future alternatives may include interim options such as preconditioning PFAS with nonpolar solvents prior to immobilization in landfills, removing PFAS from leachate, and interrupting the cycle of PFAS moving from landfill, via leachate, to wastewater treatment, and then back to the landfill via sludge. Long-term solutions may involve destructive technologies such as electron beam irradiation, electrochemical advanced oxidation, or hydrothermal liquefaction. The article highlights the need for innovative and sustainable solutions for managing PFAS-contaminated wastewater sludge.
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Affiliation(s)
- Simin Moavenzadeh Ghaznavi
- Department of Civil and Environmental Engineering, University of Maine, 5711 Boardman Hall, Orono, Maine 04473
| | - Charity Zimmerman
- School of Economics, University of Maine, 5782 Winslow Hall, Orono, Maine 04473
| | - Molly E Shea
- School of Economics, University of Maine, 5782 Winslow Hall, Orono, Maine 04473
| | - Jean D MacRae
- Department of Civil and Environmental Engineering, University of Maine, 5711 Boardman Hall, Orono, Maine 04473
| | - John M Peckenham
- Senator George J. Mitchell Center for Sustainability Solutions, University of Maine, 5710 Norman Smith Hall, Orono, Maine 04473
| | - Caroline L Noblet
- School of Economics, University of Maine, 5782 Winslow Hall, Orono, Maine 04473
| | - Onur G Apul
- Department of Civil and Environmental Engineering, University of Maine, 5711 Boardman Hall, Orono, Maine 04473
| | - A Dianne Kopec
- Senator George J. Mitchell Center for Sustainability Solutions, University of Maine, 5710 Norman Smith Hall, Orono, Maine 04473
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Cardoso IMF, Pinto da Silva L, Esteves da Silva JCG. Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101668. [PMID: 37242085 DOI: 10.3390/nano13101668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/11/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023]
Abstract
This review focuses on a critical analysis of nanocatalysts for advanced reductive processes (ARPs) and oxidation processes (AOPs) designed for the degradation of poly/perfluoroalkyl substances (PFAS) in water. Ozone, ultraviolet and photocatalyzed ARPs and/or AOPs are the basic treatment technologies. Besides the review of the nanomaterials with greater potential as catalysts for advanced processes of PFAS in water, the perspectives for their future development, considering sustainability, are discussed. Moreover, a brief analysis of the current state of the art of ARPs and AOPs for the treatment of PFAS in water is presented.
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Affiliation(s)
- Inês M F Cardoso
- Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Department of Geosciences, Environment and Territorial Planning, Faculty of Sciences, University of Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Luís Pinto da Silva
- Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Department of Geosciences, Environment and Territorial Planning, Faculty of Sciences, University of Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Joaquim C G Esteves da Silva
- Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Department of Geosciences, Environment and Territorial Planning, Faculty of Sciences, University of Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
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Wang H, Liu X, Wu D, Zhao Y, Li N, Li Y, Fan X, Xia Q, Zhang F, Peng W. Role variations of MnO x on monoclinic BiVO 4 (110)/(040) facets for enhanced Photo-Fenton reactions. J Colloid Interface Sci 2023; 646:219-227. [PMID: 37196495 DOI: 10.1016/j.jcis.2023.05.048] [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: 02/23/2023] [Revised: 04/25/2023] [Accepted: 05/07/2023] [Indexed: 05/19/2023]
Abstract
Compared with traditional Fenton reaction, peroxymonosulfate based advanced oxidation processes (PMS-AOPs) are more effective to remove the organic pollutants in wastewater in a wider pH range. Herein, selective loading of MnOx on monoclinic BiVO4 (110) or (040) facets were achieved by photo-deposition method with addition of different Mn precursors and electron/hole trapping agents. MnOx has good chemical catalysis activity for PMS activation, which can also enhance photogenerated charge separation, thus leading to enhanced activities than naked BiVO4. The BPA degradation reaction rate constants of MnOx(040)/BiVO4 and MnOx(110)/BiVO4 system are 0.245 min-1 and 0.116 min-1, which are 6.45 and 3.05 times larger than that of naked BiVO4, respectively. The roles of MnOx on different facets are different, which will promote OER process on (110) facets and utilize the dissolved O2 to produce O2•- and 1O2 more effectively on (040) facets. 1O2 is the dominated reactive oxidation species of MnOx(040)/BiVO4, while SO4•- and •OH play more important roles on MnOx(110)/BiVO4, which are proved by quenching experiments and chemical probe identifications, thus mechanism in MnOx/BiVO4-PMS-light system is proposed. The good degradation performance of MnOx(110)/BiVO4 and MnOx(040)/BiVO4 and mechanism theory may promote the application of photocatalysis in PMS based wastewater remediation.
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Affiliation(s)
- Haojie Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China
| | - Xiaomei Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China
| | - Di Wu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China
| | - Yang Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China
| | - Ning Li
- School of Environmental Science & Engineering, Tianjin University, Tianjin 300350, PR China
| | - Yang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China; Zhejiang Institute of Tianjin University, Shaoxing, Zhejiang 312300, PR China
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China; Zhejiang Institute of Tianjin University, Shaoxing, Zhejiang 312300, PR China
| | - Qing Xia
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China
| | - Fengbao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China
| | - Wenchao Peng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China; Zhejiang Institute of Tianjin University, Shaoxing, Zhejiang 312300, PR China.
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Zango ZU, Khoo KS, Garba A, Kadir HA, Usman F, Zango MU, Da Oh W, Lim JW. A review on superior advanced oxidation and photocatalytic degradation techniques for perfluorooctanoic acid (PFOA) elimination from wastewater. ENVIRONMENTAL RESEARCH 2023; 221:115326. [PMID: 36690243 DOI: 10.1016/j.envres.2023.115326] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/29/2022] [Accepted: 01/17/2023] [Indexed: 06/17/2023]
Abstract
Perfluorooctanoic acid (PFOA) has been identified as the most toxic specie of the family of perfluorinated carboxylic acids (PFCAs). It has been widely distributed and frequently detected in environmental wastewater. The compound's unique features such as inherent stability, rigidity, and resistance to harsh chemical and thermal conditions, due to its multiple and strong C-F bonds have resulted in its resistance to conventional wastewater remediations. Photolysis and bioremediation methods have been proven to be inefficient in their elimination, hence this article presents intensive literature studies and summarized findings reported on the application of advanced oxidation processes (AOPs) and photocatalytic degradation techniques as the best alternatives for the PFOA elimination from wastewater. Techniques of persulfate, photo-Fenton, electrochemical, photoelectrochemical and photocatalytic degradation have been explored and their mechanisms for the degradation and defluorination of the PFOA have been demonstrated. The major advantage of AOPs techniques has been centralized on the generation of active radicals such as sulfate (SO4•-) hydroxyl (•OH). While for the photocatalytic process, photogenerated species (electron (e) and holes (h + vb)) initiated the process. These active radicals and photogenerated species possessed potentiality to attack the PFOA molecule and caused the cleavage of the C-C and C-F bonds, resulting in its efficient degradation. Shorter-chain PFCAs have been identified as the major intermediates detected and the final stage entails its complete mineralization to carbon dioxide (CO2) and fluoride ion (F-). The prospects and challenges associated with the outlined techniques have been highlighted for better understanding of the subject matter for the PFOA elimination from real wastewaters.
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Affiliation(s)
- Zakariyya Uba Zango
- Department of Chemistry, College of Natural and Applied Science, Al-Qalam University Katsina, 2137, Katsina, Nigeria; Institute of Semi-Arid Zone Studies, Al-Qalam University Katsina, 2137, Katsina, Nigeria.
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
| | - Abdurrahman Garba
- Department of Chemistry, College of Natural and Applied Science, Al-Qalam University Katsina, 2137, Katsina, Nigeria
| | - Haliru Aivada Kadir
- Department of Quality Assurance and Control, Dangote Cement Plc, Kogi, Nigeria
| | - Fahad Usman
- Institute of Semi-Arid Zone Studies, Al-Qalam University Katsina, 2137, Katsina, Nigeria
| | - Muttaqa Uba Zango
- Department of Civil Engineering, Kano University of Science and Technology, Wudil, P.M.B. 3244, Kano, Nigeria
| | - Wen Da Oh
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Jun Wei Lim
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
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