4.7 Article

Electrochemical treatment of municipal landfill leachates and implications for poly- and perfluoroalkyl substances (PFAS) removal

Related references

Note: Only part of the references are listed.
Article Engineering, Environmental

Remediation of per- and polyfluoroalkyls (PFAS) via electrochemical methods

Surbhi Sharma et al.

Summary: The ubiquitous presence of PFAS is a major concern due to their bioaccumulation and persistence in the environment. Electrochemical treatment methods, especially utilizing boron-doped diamond and titanium sub-oxide ceramic anodes, show promising results in achieving high removal efficiency of PFAS. However, challenges such as concentration effects and mass transfer limitations need to be addressed for large-scale applications.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Environmental Sciences

Occurrence of organic micropollutants in municipal landfill leachate and its effective treatment by advanced oxidation processes

Lakshmi Pisharody et al.

Summary: Landfilling is a common method for managing municipal solid waste globally, but leachate generation poses environmental issues. Advanced oxidation processes (AOPs) show potential in removing micropollutants from landfill leachate, but further research is needed for better understanding.

CHEMOSPHERE (2022)

Review Environmental Sciences

Electrochemical methods for landfill leachate treatment: A review on electrocoagulation and electrooxidation

Zijing Guo et al.

Summary: The treatment of landfill leachate using electrochemical methods, particularly electrocoagulation and electrooxidation, has shown promising results in removing various pollutants. This review summarizes the latest research achievements and development trends over the past five years, as well as the challenges faced by electrochemical methods in actual applications.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Engineering, Environmental

Electrochemical oxidation of PFOA and PFOS in landfill leachates at low and highly boron-doped diamond electrodes

Mattia Pierpaoli et al.

Summary: This study demonstrates that electrolysis on boron-doped diamond electrodes is effective in removing PFASs, specifically perfluorooctanoate (PFOA) and perfluorooctane sulphonate (PFOS), from landfill leachates. The presence of long-chain intermediates during electrolysis differed significantly between high and low boron doping concentrations, indicating greater sensitivity of low-doped BDD to the long-chain intermediates of PFOA. This suggests potential for using BDD-electrolysis for PFAS removal despite the presence of competing components in landfill leachates.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Environmental Sciences

Legacy and emerging per- and polyfluoroalkyl substances (PFASs) in multi-media around a landfill in China: Implications for the usage of PFASs alternatives

Chang Xu et al.

Summary: This study investigated various PFAS in groundwater, surface water, and sediment samples near a valley-type landfill operating for over 20 years, revealing significant differences in PFAS concentrations in different locations and media, as well as varying partitioning behaviors of PFCAs in the water-sediment system. The increasing trend of short-chain analogues and emerging alternatives in surface water, along with negligible health risks of PFOS and PFOA via the drinking groundwater exposure pathway, were observed. Further comprehensive studies on the human health risks of PFAS from landfills are deemed essential.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Engineering, Environmental

Energy-efficient for advanced oxidation of bio-treated landfill leachate effluent by reactive electrochemical membranes (REMs): Laboratory and pilot scale studies

Hui Lin et al.

Summary: This study investigated the advanced treatment of bio-treated landfill leachate effluent using a novel reactive electrochemical membrane (REM) technology. The results showed that REM technology is effective in removing organic pollutants and ammonia nitrogen, demonstrating its high potential for use in advanced treatment processes.

WATER RESEARCH (2021)

Article Engineering, Environmental

A flow-through cell for the electrochemical oxidation of perfluoroalkyl substances in landfill leachates

Vanessa Y. Maldonado et al.

Summary: A novel boron-doped diamond (BDD) flow-through cell was used to evaluate the electrochemical oxidation of perfluoroalkyl acids (PFAAs) in landfill leachates. The study found that the oxidation process achieved non-detect levels and >90% degradation for PFOS and PFOA after 2 hours of treatment in all tested leachates; trends of decreasing for certain PFAAs such as PFHpA, PFHxA, and PFHxS, and increasing for others like PFPeA, PFBA, and PFBS were observed; total PFAAs removal ranged from -138.6% to 73.5%.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

Article Environmental Sciences

Electrochemical degradation of per- and poly-fluoroalkyl substances using boron-doped diamond electrodes

Jean Noel Uwayezu et al.

Summary: Electrochemical degradation using boron-doped diamond (BDD) electrodes has been proven to be an effective method for treating water contaminated with per- and poly-fluoroalkyl substances (PFAS). Factors such as current density and treatment time were found to significantly impact the degradation efficiency of PFAS, particularly perfluorooctanoic acid (PFOA). High concentrations of organic carbon and chloride in wastewater samples were identified as important factors affecting the efficiency of PFAS electrochemical degradation. Increasing treatment time is recommended to effectively degrade PFAS in both water and wastewater samples.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

Article Engineering, Environmental

From Waste Collection Vehicles to Landfills: Indication of Per- and Polyfluoroalkyl Substance (PFAS) Transformation

Yalan Liu et al.

Summary: Municipal solid waste contains significant amounts of PFAS, which may transform during landfilling. Landfill leachate was found to be dominated by PFAAs, while commercial and residential vehicle leachate contained mostly PFAA-precursors, indicating precursor transformation during landfill disposal. Additional PFAS not routinely monitored were detected, with proposed degradation pathways involving diPAPs and FTS transformation into PFCAs via FTCAs.

ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS (2021)

Article Engineering, Environmental

Amorphous Pd-Loaded Ti4O7 Electrode for Direct Anodic Destruction of Perfluorooctanoic Acid

Dahong Huang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Engineering, Environmental

Are Fluoropolymers Really of Low Concern for Human and Environmental Health and Separate from Other PFAS?

Rainer Lohmann et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Engineering, Chemical

Optimized energy consumption in electrochemical-based regeneration of RAS water

Alba Romano et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2020)

Article Electrochemistry

Electrochemical removal of Bisphenol A from landfill leachate under Nordic climate conditions

Noemi Ambauen et al.

JOURNAL OF APPLIED ELECTROCHEMISTRY (2020)

Article Environmental Sciences

Emerging contaminants removal from effluents with complex matrices by electrooxidation

Annabel Fernandes et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

Review Engineering, Environmental

Facing the Challenge of Poly- and Perfluoroalkyl Substances in Water: Is Electrochemical Oxidation the Answer?

Jelena Radjenovic et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Engineering, Environmental

Electrochemical treatment of poly- and perfluoroalkyl substances in brines

Charles E. Schaefer et al.

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY (2020)

Article Engineering, Chemical

Comparison of microcrystalline and ultrananocrystalline boron doped diamond anodes: Influence on perfluorooctanoic acid electrolysis

Beatriz Gomez-Ruiz et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2019)

Article Chemistry, Analytical

Migration of perfluorinated compounds from paperbag to Tenax® and lyophilised milk at different temperatures

Maria P. Elizalde et al.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2018)

Article Engineering, Environmental

National Estimate of Per- and Polyfluoroalkyl Substance (PFAS) Release to US Municipal Landfill Leachate

Johnsie R. Lang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2017)

Review Chemistry, Multidisciplinary

Single and Coupled Electrochemical Processes and Reactors for the Abatement of Organic Water Pollutants: A Critical Review

Carlos A. Martinez-Huitle et al.

CHEMICAL REVIEWS (2015)

Article Engineering, Environmental

Occurrence and Removal of Organic Micropollutants in Landfill Leachates Treated by Electrochemical Advanced Oxidation Processes

Nihal Oturan et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2015)

Article Engineering, Environmental

Remediation of wastewaters containing tetrahydrofuran. Study of the electrochemical mineralization on BDD electrodes

A. Urtiaga et al.

CHEMICAL ENGINEERING JOURNAL (2014)

Review Environmental Sciences

Electrochemical advanced oxidation processes: today and tomorrow. A review

Ignasi Sires et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2014)

Article Engineering, Environmental

Per- and Polyfluoroalkyl Substances in Landfill Leachate: Patterns, Time Trends, and Sources

Jonathan P. Benskin et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2012)

Article Electrochemistry

Kinetic modeling of the electrochemical removal of ammonium and COD from landfill leachates

Ane Urtiaga et al.

JOURNAL OF APPLIED ELECTROCHEMISTRY (2012)

Article Environmental Sciences

Quantitative determination of fluorochemicals in municipal landfill leachates

Carin A. Huset et al.

CHEMOSPHERE (2011)

Article Engineering, Environmental

Wastewater Treatment Plant and Landfills as Sources of Polyfluoroalkyl Compounds to the Atmosphere

Lutz Ahrens et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2011)

Article Environmental Sciences

Polyfluoroalkyl compounds in landfill leachates

Jan Busch et al.

ENVIRONMENTAL POLLUTION (2010)

Article Engineering, Environmental

Laboratory and pilot plant scale study on the electrochemical oxidation of landfill leachate

Angela Anglada et al.

JOURNAL OF HAZARDOUS MATERIALS (2010)

Article Environmental Sciences

Municipal landfill leachates: A significant source for new and emerging pollutants

Trine Eggen et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2010)

Article Engineering, Environmental

Electrochemical oxidation of landfill leachates at pilot scale: evaluation of energy needs

A. Anglada et al.

WATER SCIENCE AND TECHNOLOGY (2010)

Article Engineering, Environmental

Pilot Scale Performance of the Electro-Oxidation of Landfill Leachate at Boron-Doped Diamond Anodes

Angela Anglada et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2009)

Article Engineering, Environmental

Integrated treatment of landfill leachates including electrooxidation at pilot plant scale

Ane Urtiaga et al.

JOURNAL OF HAZARDOUS MATERIALS (2009)

Article Engineering, Chemical

Electrochemical treatment of landfill leachates using a boron-doped diamond anode

Adelaida Cabeza et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2007)