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Microplastics removal in wastewater treatment plants: a critical review
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This critical review of microplastic removal in wastewater treatment plants examines removal efficiencies across different treatment stages, finding that while WWTPs remove the majority of microplastics from influent, they still release millions of particles daily and are a major pathway for microplastics entering aquatic environments.
Wastewater treatment plants (WWTPs) are an important route for microplastics to enter aquatic environments.
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Toward a Better Understanding of the Contribution of Wastewater Treatment Plants to Microplastic Pollution in Receiving Waterways
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This review examines how wastewater treatment plants (WWTPs) contribute to microplastic pollution in receiving waterways, synthesizing evidence on removal efficiencies of different treatment stages and the characteristics of microplastics that escape into the environment. Researchers found that while WWTPs remove the majority of incoming microplastics, they remain a significant source of microplastic discharge due to the large volumes of wastewater processed daily.
Microplastics in Wastewater Treatment Plants (WWTPs): A Review
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This review examines the occurrence and behavior of microplastics in wastewater treatment plants (WWTPs), finding that while WWTPs remove a large proportion of incoming microplastics, they still discharge significant quantities into receiving water bodies daily. The paper calls for improved treatment technologies and better characterization of microplastic types in wastewater streams.
Microplastics in wastewater treatment plants: Sources, properties, removal efficiency, removal mechanisms, and interactions with pollutants
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This review examines microplastic sources, properties, removal efficiency, and removal mechanisms across different wastewater treatment plant stages. Researchers found that while treatment plants remove a significant portion of microplastics, they cannot eliminate them entirely, resulting in the continued release of millions of particles into the environment daily through effluent and sludge.
Wastewater treatment plants as pathways of microlitter to the aquatic environment
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This thesis examines wastewater treatment plants as pathways for microlitter — including microplastics — to enter aquatic environments, measuring step-wise removal across treatment stages. While WWTPs remove a large proportion of incoming microplastics, even small residual concentrations in large daily effluent volumes represent a significant ongoing pollution input to waterways.
Where do they go? A review of the wastewater treatment process and its impact on the fate of microplastics
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This review examines the fate of microplastics across the physical, chemical, and biological stages of wastewater treatment plant (WWTP) processes, finding that WWTPs act as both sources and destinations for microplastics while not being designed to remove them, and surveying new removal strategies.
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