Journal
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
Volume 16, Issue 5, Pages -Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s11783-021-1492-5
Keywords
Microplastics; Drinking water treatment; Coagulation; Flocculation; Membrane; Filtration
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- University of Regina
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This article summarizes the major compositions of microplastics in drinking water sources and the removal efficiency and impacts of microplastics in various drinking water treatment processes. Various factors influencing microplastics removal are discussed. Additionally, the article outlines the major challenges and future research directions on microplastics and nanoplastics in drinking water treatment.
Microplastics (MPs) have been widely detected in drinking water sources and tap water, raising the concern of the effectiveness of drinking water treatment plants (DWTPs) in protecting the public from exposure to MPs through drinking water. We collected and analyzed the available research articles up to August 2021 on MPs in drinking water treatment (DWT), including laboratory- and full-scale studies. This article summarizes the major MP compositions (materials, sizes, shapes, and concentrations) in drinking water sources, and critically reviews the removal efficiency and impacts of MPs in various drinking water treatment processes. The discussed drinking water treatment processes include coagulation-flocculation (CF), membrane filtration, sand filtration, and granular activated carbon (GAC) filtration. Current DWT processes that are purposed for particle removal are generally effective in reducing MPs in water. Various influential factors to MP removal are discussed, such as coagulant type and dose, MP material, shape and size, and water quality. It is anticipated that better MP removal can be achieved by optimizing the treatment conditions. Moreover, the article framed the major challenges and future research directions on MPs and nanoplastics (NPs) in DWT.
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