Microplastics removal through water treatment plants: Its feasibility, efficiency, future prospects and enhancement by proper waste management

doi:10.1016/j.envc.2021.100264

科研成果详情

题名	Microplastics removal through water treatment plants: Its feasibility, efficiency, future prospects and enhancement by proper waste management
作者	Tang，Kuok Ho Daniel 1; Hadibarata，Tony 2
发表日期	2021-12-01
发表期刊	Environmental Challenges
卷号	5
摘要	With water treatment plants providing a viable solution for removal of microplastics from the environment, this review examines the overall and stage-wise efficiency of various water treatment technologies in removing microplastics and the technologies for managing water treatment wastes. More than 80 scholarly papers published in the past 10 years were reviewed. This review showed highly variable efficiency of the water treatment technologies with primary treatment of wastewater treatment plant reported to remove 16.5 to 98.4% microplastics. Secondary treatment of wastewater treatment plant has overall microplastics removal efficiency ranging from 78.1 to 100% and stage-wise efficiency from 7% (activated sludge) to 99.9% (membrane reactor). Tertiary treatment removes an overall 87.3% to above 99.9% microplastics. Initial coagulation and sedimentation of drinking water treatment plant can normally remove 1.8% to 54.5% of microplastics though advanced treatment pushes microplastics removal to overall 88.6%. Use of larger-than-normal dose of flocculent experimentally significantly increases microplastics removal up to 62%. The largest fraction of microplastics removed conventionally is trapped in sludge. This review highlights the feasibility of water treatment for removal of microplastics from water sources but reveals sludge and membranes as significant sources of microplastics from water treatment. It recommends enhancement of water treatment through adjustment of coagulants, potential use of emerging sol-gel technology and incorporation of advanced treatment for more efficient removal of microplastics. It advocates thermal pretreatment of sludge to potentially facilitate microplastics breakdown and recycle of membrane to reduce re-entry of microplastics into the environment.
关键词	Efficiency Membrane Microplastics Sludge Water treatment
DOI	10.1016/j.envc.2021.100264
相关网址	查看来源
语种	英语English
Scopus入藏号	2-s2.0-85121224239
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	评论文章
条目标识符	https://repository.uic.edu.cn/handle/39GCC9TT/8296
专题	北师香港浸会大学
通讯作者	Tang，Kuok Ho Daniel
作者单位	1.Environmental Science Program,Division of Science and Technology,Beijing Normal University-Hong Kong Baptist University United International College,Zhuhai,2000 Jintong Road, Tangjiawan,519087,China 2.Environmental Engineering Program,Faculty of Engineering and Science,Curtin University Malaysia,Miri,CDT 250,Malaysia
第一作者单位	北师香港浸会大学
通讯作者单位	北师香港浸会大学
推荐引用方式 GB/T 7714	Tang，Kuok Ho Daniel,Hadibarata，Tony. Microplastics removal through water treatment plants: Its feasibility, efficiency, future prospects and enhancement by proper waste management. 2021.