| Title | Microplastics removal through water treatment plants: Its feasibility, efficiency, future prospects and enhancement by proper waste management |
| Creator | |
| Date Issued | 2021-12-01 |
| Source Publication | Environmental Challenges |
| Volume | 5 |
| Abstract | 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. |
| Keyword | Efficiency Membrane Microplastics Sludge Water treatment |
| DOI | 10.1016/j.envc.2021.100264 |
| URL | View source |
| Language | 英语English |
| Scopus ID | 2-s2.0-85121224239 |
| Citation statistics |
Cited Times [WOS]:0
[WOS Record]
[Related Records in WOS]
|
| Document Type | Review |
| Identifier | http://repository.uic.edu.cn/handle/39GCC9TT/8296 |
| Collection | Beijing Normal-Hong Kong Baptist University |
| Corresponding Author | Tang，Kuok Ho Daniel |
| Affiliation | 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 |
| First Author Affilication | Beijing Normal-Hong Kong Baptist University |
| Corresponding Author Affilication | Beijing Normal-Hong Kong Baptist University |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
BNBU 
Library
Edit Comment