Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation Processes
Microplastics are generated from plastic waste in landfills due to physical, chemical, and biological effects, and eventually enter into the leachate. Leachate is a potential source of environmental microplastics which has not been emphasized. Here, we summarized the investigation of microplastics i...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/2/252 |
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| author | Lan Wang Hui Wang Qiujie Huang Changfu Yang Luochun Wang Ziyang Lou Qian Zhou Tiantian Wang Chengqi Ning |
| author_facet | Lan Wang Hui Wang Qiujie Huang Changfu Yang Luochun Wang Ziyang Lou Qian Zhou Tiantian Wang Chengqi Ning |
| author_sort | Lan Wang |
| collection | DOAJ |
| description | Microplastics are generated from plastic waste in landfills due to physical, chemical, and biological effects, and eventually enter into the leachate. Leachate is a potential source of environmental microplastics which has not been emphasized. Here, we summarized the investigation of microplastics in leachate in 9 countries from 28 papers, provided a comprehensive review of the sampling, detection, and separation of microplastics in leachate, and elaborated on the quality control in each process. There are more than forty types of microplastics in leachate, with diverse shapes, wide size distribution, and concentrations of 0–25 items/L. Commonly used techniques are FTIR, Raman, SEM, and py-GC–MS for characterizing microplastics, while standardization of micro- or nanoplastics for leachate with a complex composition should be further studied. We also discussed in depth the degradation mechanism of microplastics in advanced oxidation processes (AOPs). Microplastics can be decomposed into small molecules such as aldehydes and ketones, and some can even eventually be degraded into CO<sub>2</sub> and H<sub>2</sub>O in AOPs, which may be further implemented in leachate treatment plants. This review provides the scientific fundamentals for understanding the microplastics in landfill leachate and proposes removal strategies for future research. |
| first_indexed | 2024-03-09T11:01:38Z |
| format | Article |
| id | doaj.art-e0e2b27251dc4acab50958ac12a3b786 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T11:01:38Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-e0e2b27251dc4acab50958ac12a3b7862023-12-01T01:15:19ZengMDPI AGWater2073-44412023-01-0115225210.3390/w15020252Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation ProcessesLan Wang0Hui Wang1Qiujie Huang2Changfu Yang3Luochun Wang4Ziyang Lou5Qian Zhou6Tiantian Wang7Chengqi Ning8School of College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200240, ChinaSchool of College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200240, ChinaSchool of College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, ChinaSchool of College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, ChinaSchool of College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, ChinaMicroplastics are generated from plastic waste in landfills due to physical, chemical, and biological effects, and eventually enter into the leachate. Leachate is a potential source of environmental microplastics which has not been emphasized. Here, we summarized the investigation of microplastics in leachate in 9 countries from 28 papers, provided a comprehensive review of the sampling, detection, and separation of microplastics in leachate, and elaborated on the quality control in each process. There are more than forty types of microplastics in leachate, with diverse shapes, wide size distribution, and concentrations of 0–25 items/L. Commonly used techniques are FTIR, Raman, SEM, and py-GC–MS for characterizing microplastics, while standardization of micro- or nanoplastics for leachate with a complex composition should be further studied. We also discussed in depth the degradation mechanism of microplastics in advanced oxidation processes (AOPs). Microplastics can be decomposed into small molecules such as aldehydes and ketones, and some can even eventually be degraded into CO<sub>2</sub> and H<sub>2</sub>O in AOPs, which may be further implemented in leachate treatment plants. This review provides the scientific fundamentals for understanding the microplastics in landfill leachate and proposes removal strategies for future research.https://www.mdpi.com/2073-4441/15/2/252microplasticslandfill leachateoccurrencedetectionadvanced oxidation treatment |
| spellingShingle | Lan Wang Hui Wang Qiujie Huang Changfu Yang Luochun Wang Ziyang Lou Qian Zhou Tiantian Wang Chengqi Ning Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation Processes Water microplastics landfill leachate occurrence detection advanced oxidation treatment |
| title | Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation Processes |
| title_full | Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation Processes |
| title_fullStr | Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation Processes |
| title_full_unstemmed | Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation Processes |
| title_short | Microplastics in Landfill Leachate: A Comprehensive Review on Characteristics, Detection, and Their Fates during Advanced Oxidation Processes |
| title_sort | microplastics in landfill leachate a comprehensive review on characteristics detection and their fates during advanced oxidation processes |
| topic | microplastics landfill leachate occurrence detection advanced oxidation treatment |
| url | https://www.mdpi.com/2073-4441/15/2/252 |
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