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| Removal of Pathogenic Microorganisms by Constructed Wetland：An Overview |
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| KeyWord:constructed wetland; pathogenic microorganism; fate |
| Author Name | Affiliation | | CHEN Di | School of Environment and Natural Resources, Renmin University of China
Research Center for Eco-Environment Sciences, Chinese Academy of Sciences | | YANG Yong | Chinese Society for Environmental Sciences | | ZHENG Xiang | School of Environment and Natural Resources, Renmin University of China | | WEI Yuan-song | Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences |
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| Abstract: |
| Pollution and control of pathogenic in surface water of China should be paid more attention because river quality is assessed mainly by physic-chemical parameters at present. Though constructed wetland is a widely used ecological technology for controlling water pollution, there is a missing gap between removal and fate of pathogen in the constructed wetland. Therefore the purpose of this study is to summarize the state art of removing pathogenic microorganisms by the constructed wetland through literature review. Firstly, this paper briefly introduced the species of pathogenic and indicator microorganisms in the polluted water. Secondly, the removal performances of pathogen by different constructed wetlands were compared and summarized, including factors of pathogen removal such as plants, substrate and operation parameters. Meanwhile the fate of pathogenic microorganisms in the constructed wetland was discussed from the view point of interception and inactivation, e.g. the mechanism and factors of interception caused by adsorption and filtration, abiotic and biotic factors of inactivation. Finally the trends are proposed to promote pathogen removal by the constructed wetland in the near future. |
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