Progress and prospect of anodic oxidation for the remediation of perfluoroalkyl and polyfluoroalkyl substances in water and wastewater using diamond electrodes

McBeath, Sean T.; Mora, Adrian Serrano; Zeidabadi, Fatemeh Asadi; Mayer, Brooke K.; Mohseni, Madjid; Hoffmann, Michael R.; Graham, Nigel

doi:10.1016/j.coelec.2021.100865

Cited by 11 publications

(5 citation statements)

References 87 publications

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“…At present, the primary focus of remediation technologies is the targeting of aqueous waste streams contaminated with PFAS. Technologies such as sorption using granular activated carbon, biochar [117,118], ion exchange resins [119], membrane technologies including reverse osmosis (RO) and nanofiltration (NF) membranes [120], advanced oxidation (i.e., chemical, electrochemical, and photochemical) [121,122], and foam fractionation [123] have been studied and/or used to treat waterbodies such as wastewater, drinking water, groundwater, and leachate [124].…”

Section: The Source Of Pfas In Compostmentioning

confidence: 99%

Challenges and Remediation Strategies for Per- and Polyfluoroalkyl Substances (PFAS) Contamination in Composting

Khair Biek,

Khudur,

Ball

2024

Sustainability

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Municipal solid waste (MSW) is projected to rise to 3.4 billion tonnes by 2050, with only 33% undergoing environmentally friendly management practices. Achieving a circular economy involves sustainable approaches, among which diverting waste from landfills to composting plays a crucial role. However, many of the products society uses and discards in MSW daily contain per- and polyfluoroalkyl substances (PFAS), raising concerns that composts may inadvertently introduce PFAS into the environment, posing a significant challenge to waste management and environmental sustainability. PFAS have been detected in compost at concentrations ranging between 1.26–11.84 µg/kg. Composts are therefore a source of PFAS contamination, posing risks to human and ecosystem health. Impactful technologies are therefore required for PFAS remediation during the composting process. This review examines the composting process as a sustainable organic waste management technology, examining the various systems employed, compost quality, and uses, particularly emphasising the challenge posed by PFAS contamination. The review provides novel insights into possible PFAS remediation technologies. A comprehensive understanding of PFAS origin, fate, and transformation during the composting process is lacking, creating substantial knowledge gaps regarding the inputs processes contributing most to PFAS accumulation in the final product. Addressing these gaps in future studies is crucial for minimising PFAS discharge into the environment and developing an effective remediation approach. This review highlights the urgent need for innovative solutions to mitigate PFAS contamination in compost and the importance of advancing research and technology to achieve sustainable waste management objectives.

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Section: The Source Of Pfas In Compostmentioning

confidence: 99%

Challenges and Remediation Strategies for Per- and Polyfluoroalkyl Substances (PFAS) Contamination in Composting

Khair Biek,

Khudur,

Ball

2024

Sustainability

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“…Activated sludge treatment removed pharmaceuticals by mixing and activating microorganisms in the sludge and was suitable for wastewater treatment facilities (Wang et al, 2021). Electrochemical oxidation can remove various drugs and micro-pollutants, but it requires power supply, electrode materials and long-term maintenance, which is not conducive to practical applications (Sean et al, 2021). The choice of technology depended on the type of drug, water characteristics, economic factors and environmental goals.…”

Section: Other Technologies For Removing Pharmaceutical Residues From...mentioning

confidence: 99%

Research progress on biochar-based material adsorption and removal of ibuprofen

Zhan,

Ye,

Hou

2023

Front. Environ. Sci.

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Ibuprofen, commonly used for pain relief, inflammation, and to reduce high fever, etc., is a widely available over-the-counter drug. In recent years, due to the excessive use of ibuprofen, its presence in the aquatic environments has shown a significant increasing trend, raising concerns about potential risks to environmental safety, which attracted people’s close attention. Notably, biochar, known as an environmentally friendly functional material, had been widely studied and applied for the removal of ibuprofen in water environments. According to current reports, the adsorption capacity value of biochar for IBP is between 9.69–309 mg/g, and the adsorption mechanism mainly includes π-π stacking, hydrogen bonding, pore filling, etc. In response to this research hotspot, this study reviewed the most recent research progress on the adsorption of ibuprofen using biochar-based materials, including the modified preparation process of biochar and the adsorption mechanism of IBP on various modified biochar surfaces. Additionally, potential challenges and future development directions for the practical applications of biochar were discussed and proposed.

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“…52,56 Membrane filtration and ion exchange suffer from a high disposal cost of PFAS-rich concentrate. 57 Thus, several advanced technologies such as sonochemical, 58 electrochemical, 59 photochemical, 60 plasmatic, 61 radiolytic, 62 and thermolysis 63 have been developed for destruction of PFAS. Amongst them, photochemical processes are considered as one of the most favored redox methods due to their simplicity, high degree of efficiency, and mild operating conditions.…”

Section: Pfasphotodegradation/scope Of the Reviewmentioning

confidence: 99%

Photo-chemical/catalytic oxidative/reductive decomposition of per- and poly-fluoroalkyl substances (PFAS), decomposition mechanisms and effects of key factors: a review

Esfahani

Zeidabadi

Zhang

et al. 2022

Environ. Sci.: Water Res. Technol.

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Progress and prospect of anodic oxidation for the remediation of perfluoroalkyl and polyfluoroalkyl substances in water and wastewater using diamond electrodes

Cited by 11 publications

References 87 publications

Challenges and Remediation Strategies for Per- and Polyfluoroalkyl Substances (PFAS) Contamination in Composting

Challenges and Remediation Strategies for Per- and Polyfluoroalkyl Substances (PFAS) Contamination in Composting

Research progress on biochar-based material adsorption and removal of ibuprofen

Photo-chemical/catalytic oxidative/reductive decomposition of per- and poly-fluoroalkyl substances (PFAS), decomposition mechanisms and effects of key factors: a review

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