Removal of microplastics in water: Technology progress and green strategies

Microplastics (MPs) are globally distributed in aquatic environments, and become a growing threat to the ecosystem. It is urgently needed to develop effective technologies to remove MPs from water. In this review, we summarized progress in major technologies for the removal of MPs. Currently, multip...

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Main Authors: Wei Gao, Yalin Zhang, Aoyun Mo, Jie Jiang, Yuqing Liang, Xiaomu Cao, Defu He
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Green Analytical Chemistry
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772577422000404
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author Wei Gao
Yalin Zhang
Aoyun Mo
Jie Jiang
Yuqing Liang
Xiaomu Cao
Defu He
author_facet Wei Gao
Yalin Zhang
Aoyun Mo
Jie Jiang
Yuqing Liang
Xiaomu Cao
Defu He
author_sort Wei Gao
collection DOAJ
description Microplastics (MPs) are globally distributed in aquatic environments, and become a growing threat to the ecosystem. It is urgently needed to develop effective technologies to remove MPs from water. In this review, we summarized progress in major technologies for the removal of MPs. Currently, multiple technologies for MPs removal have been developed including physical, chemical, and biological approaches. Filtration technology has a various removal efficiency, but a relatively high cost due to membrane fouling and replacing new filter membranes. The approach of adsorption and magnetic separation is a simple removal method; however, additive sorbents may cause secondary pollution. There is a similar problem of chemical residua in coagulation and oxidation treatment. In contrast, biodegradation and bioreactors are often of a low degradation efficiency. Then, existing removal technologies were comparatively analyzed in several aspects, especially practical efficiency and environmental impacts. Finally, green strategies for plastic abatement were proposed, including zero pollutant removal technology, integrated environmentally friendly approaches, recycling use of conventional plastic, and developing biodegradable plastic in the future.
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spelling doaj.art-15efe0b233b4437b9f3f120bf9ca12e22024-01-25T05:24:14ZengElsevierGreen Analytical Chemistry2772-57742022-12-013100042Removal of microplastics in water: Technology progress and green strategiesWei Gao0Yalin Zhang1Aoyun Mo2Jie Jiang3Yuqing Liang4Xiaomu Cao5Defu He6School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai, 200241, ChinaSchool of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, ChinaSchool of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, ChinaSchool of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai, 200241, ChinaSchool of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, ChinaSchool of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai, 200241, ChinaSchool of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai, 200241, China; Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai, 200241, China; Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, Shanghai, 200062, China; Corresponding author.Microplastics (MPs) are globally distributed in aquatic environments, and become a growing threat to the ecosystem. It is urgently needed to develop effective technologies to remove MPs from water. In this review, we summarized progress in major technologies for the removal of MPs. Currently, multiple technologies for MPs removal have been developed including physical, chemical, and biological approaches. Filtration technology has a various removal efficiency, but a relatively high cost due to membrane fouling and replacing new filter membranes. The approach of adsorption and magnetic separation is a simple removal method; however, additive sorbents may cause secondary pollution. There is a similar problem of chemical residua in coagulation and oxidation treatment. In contrast, biodegradation and bioreactors are often of a low degradation efficiency. Then, existing removal technologies were comparatively analyzed in several aspects, especially practical efficiency and environmental impacts. Finally, green strategies for plastic abatement were proposed, including zero pollutant removal technology, integrated environmentally friendly approaches, recycling use of conventional plastic, and developing biodegradable plastic in the future.http://www.sciencedirect.com/science/article/pii/S2772577422000404MicroplasticsPollution controlWater environmentsBiodegradable plasticsRemoval technology
spellingShingle Wei Gao
Yalin Zhang
Aoyun Mo
Jie Jiang
Yuqing Liang
Xiaomu Cao
Defu He
Removal of microplastics in water: Technology progress and green strategies
Green Analytical Chemistry
Microplastics
Pollution control
Water environments
Biodegradable plastics
Removal technology
title Removal of microplastics in water: Technology progress and green strategies
title_full Removal of microplastics in water: Technology progress and green strategies
title_fullStr Removal of microplastics in water: Technology progress and green strategies
title_full_unstemmed Removal of microplastics in water: Technology progress and green strategies
title_short Removal of microplastics in water: Technology progress and green strategies
title_sort removal of microplastics in water technology progress and green strategies
topic Microplastics
Pollution control
Water environments
Biodegradable plastics
Removal technology
url http://www.sciencedirect.com/science/article/pii/S2772577422000404
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