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Electrochemical remediation of microplastics: Progress and prospects in water treatment
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This review examines electrochemical methods for removing microplastics from water, including electrocoagulation, electro-oxidation, and the electro-Fenton process. Evidence indicates that electro-oxidation can achieve removal rates as high as 99 percent under optimized conditions. The study highlights these techniques as promising alternatives for water treatment but calls for further research to scale them up for real-world applications.
Plastic pollution has emerged as a critical global concern, with microplastics (MPs)-defined as plastic particles smaller than 5 mm-posing serious threats to both environmental and human health. In 2019, global plastic production reached approximately 259 million tons, and is projected to rise to 500 million tons by 2025. By 2060, MPs are expected to account for a significant share of accumulated plastic waste, potentially reaching 1.2 billion tons. The pervasive occurrence of MPs has sparked growing concern over their potential adverse effects on both ecological systems and human well-being. MPs have been detected in a wide range of biological matrices, including placental blood and other bodily fluids of newborns. This alarming evidence raises urgent concerns regarding their potential impacts on total human health. This review article explores electrochemical treatment techniques-specifically electrocoagulation, electro-oxidation, and the electro-Fenton process-as promising strategies for the removal of MPs from water. Among these, electro-oxidation has demonstrated removal efficiencies as high as 90 %, with yields reaching 99.24 % under optimized operational conditions. The review concludes by highlighting key research gaps, advocating for further technological innovation, and underscoring the importance of raising public awareness to combat this growing environmental challenge effectively.
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Developments in advanced oxidation processes for removal of microplastics from aqueous matrices
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This review evaluates advanced oxidation processes for removing microplastics from water, finding that photocatalysis, Fenton reactions, and electrochemical methods can effectively degrade microplastics into smaller molecules, offering promising alternatives to conventional non-destructive treatment approaches.
Emerging electrochemical tools for microplastics remediation and sensing
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This review examines emerging electrochemical approaches for both detecting and remediating microplastics in the environment, highlighting their advantages over traditional methods and identifying key challenges and opportunities for developing practical electrochemical tools to address microplastic pollution.
Emerging electrochemical techniques for identifying and removing micro/nanoplastics in urban waters
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This review examines emerging electrochemical techniques for detecting and removing micro- and nanoplastics from urban waters, highlighting their advantages over conventional methods for enabling real-time monitoring and efficient degradation.
Comparative Analysis of Electrochemical Oxidation and Biodegradation for Microplastic Removal in Wastewater
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Researchers compared electrochemical oxidation and biodegradation for removing polystyrene microplastics from wastewater, finding that electrochemical oxidation achieved superior removal efficiency and could serve as a more effective treatment pathway at wastewater treatment plants.
Combating microplastic pollution in water: the role and limits of electrochemical methods
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Microplastics, tiny plastic bits that show up in our water and even our bodies, are notoriously hard to remove, and this review looked at whether electricity-based treatments could break them down. The findings show that current methods mostly just modify the surface of microplastics rather than fully destroying them, and energy costs vary wildly between studies, meaning this technology isn't yet ready to reliably clean up our water supply. The takeaway: while promising, electrochemical treatment needs more standardized testing and likely combination with other methods before it can be trusted as a real-world solution to microplastic contamination.
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