Removal of microplastics in unit processes used in water and wastewater treatment: a review

Many tons of micro- and nano-sized plastic particles enter the aquatic environment every year, due to increasing plastic production, with the consequent risk of microplastics contaminating our environment. Addressing this multifaceted threat requires innovative technologies that can efficiently remo...

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Main Authors: Michał Bodzek, Alina Pohl
Format: Article
Language:English
Published: Polish Academy of Sciences 2022-12-01
Series:Archives of Environmental Protection
Subjects:
Online Access:https://journals.pan.pl/Content/125247/PDF/Archives%20vol48no4pp102_128.pdf
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author Michał Bodzek
Alina Pohl
author_facet Michał Bodzek
Alina Pohl
author_sort Michał Bodzek
collection DOAJ
description Many tons of micro- and nano-sized plastic particles enter the aquatic environment every year, due to increasing plastic production, with the consequent risk of microplastics contaminating our environment. Addressing this multifaceted threat requires innovative technologies that can efficiently remove microplastics from the environment. Therefore, there is an urgent need to study the efficiency of the removal of microplastics by different water and wastewater treatment technologies. After short overviewed the source, occurrence, and potential adverse impacts of microplastics to human health, we then identified promising technologies for microplastics removal, including physical, chemical, and biological approaches. A detailed analysis of the advantages and limitations of different techniques was provided. According to literature data, the performance of microplastics removal is as follows: membrane bioreactor (>99%) > activated sludge process (~98%) > rapid sand filtration (~97.1%) > dissolved air floatation (~95%) > electrocoagulation (>90%) > constructed wetlands (88%). Chemical treatment methods such as coagulation, magnetic separation, Fenton, photo-Fenton and photocatalytic degradation also show moderate to high efficiency of microplastics removal. Hybrid treatment such as the MBR-UF/RO system, coagulation followed by ozonation, adsorption, dissolved air flotation, filtration, and constructed wetlands based hybrid technologies have shown very promising results in the effective removal of microplastics. Lastly, research gaps in this area are identified, and suggestions for future perspectives are provided. We concluded this review with the current challenges and future research priorities, which will guide us through the path addressing microplastics contamination.
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spelling doaj.art-28e0a606f60b498db05a885680221cea2023-11-29T10:42:32ZengPolish Academy of SciencesArchives of Environmental Protection2083-47722083-48102022-12-01vol. 48No 4102128https://doi.org/10.24425/aep.2022.143713Removal of microplastics in unit processes used in water and wastewater treatment: a reviewMichał Bodzek0https://orcid.org/0000-0001-9534-7426Alina Pohl1Institute of Environmental Engineering Polish Academy of Sciences, Zabrze, PolandInstitute of Environmental Engineering Polish Academy of Sciences, Zabrze, PolandMany tons of micro- and nano-sized plastic particles enter the aquatic environment every year, due to increasing plastic production, with the consequent risk of microplastics contaminating our environment. Addressing this multifaceted threat requires innovative technologies that can efficiently remove microplastics from the environment. Therefore, there is an urgent need to study the efficiency of the removal of microplastics by different water and wastewater treatment technologies. After short overviewed the source, occurrence, and potential adverse impacts of microplastics to human health, we then identified promising technologies for microplastics removal, including physical, chemical, and biological approaches. A detailed analysis of the advantages and limitations of different techniques was provided. According to literature data, the performance of microplastics removal is as follows: membrane bioreactor (>99%) > activated sludge process (~98%) > rapid sand filtration (~97.1%) > dissolved air floatation (~95%) > electrocoagulation (>90%) > constructed wetlands (88%). Chemical treatment methods such as coagulation, magnetic separation, Fenton, photo-Fenton and photocatalytic degradation also show moderate to high efficiency of microplastics removal. Hybrid treatment such as the MBR-UF/RO system, coagulation followed by ozonation, adsorption, dissolved air flotation, filtration, and constructed wetlands based hybrid technologies have shown very promising results in the effective removal of microplastics. Lastly, research gaps in this area are identified, and suggestions for future perspectives are provided. We concluded this review with the current challenges and future research priorities, which will guide us through the path addressing microplastics contamination.https://journals.pan.pl/Content/125247/PDF/Archives%20vol48no4pp102_128.pdfwater and wastewater treatmentmicroplastics removalphysical treatmentchemical technologybiological process
spellingShingle Michał Bodzek
Alina Pohl
Removal of microplastics in unit processes used in water and wastewater treatment: a review
Archives of Environmental Protection
water and wastewater treatment
microplastics removal
physical treatment
chemical technology
biological process
title Removal of microplastics in unit processes used in water and wastewater treatment: a review
title_full Removal of microplastics in unit processes used in water and wastewater treatment: a review
title_fullStr Removal of microplastics in unit processes used in water and wastewater treatment: a review
title_full_unstemmed Removal of microplastics in unit processes used in water and wastewater treatment: a review
title_short Removal of microplastics in unit processes used in water and wastewater treatment: a review
title_sort removal of microplastics in unit processes used in water and wastewater treatment a review
topic water and wastewater treatment
microplastics removal
physical treatment
chemical technology
biological process
url https://journals.pan.pl/Content/125247/PDF/Archives%20vol48no4pp102_128.pdf
work_keys_str_mv AT michałbodzek removalofmicroplasticsinunitprocessesusedinwaterandwastewatertreatmentareview
AT alinapohl removalofmicroplasticsinunitprocessesusedinwaterandwastewatertreatmentareview