期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 28, 期 44, 页码 62061-62084出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-021-16663-8
关键词
Floating treatment wetland; Water treatment; Pollution removal; Applications; Performance
资金
- Major Science and Technology Project of Water Pollution Control and Management in China [2017ZX07202004]
This paper provides a comprehensive review of the history and latest developments of floating treatment wetlands (FTWs), analyzing their treatment performance and pollutant removal mechanisms on various source waters. It also discusses the limitations of FTWs and summarizes effective enhancement measures for further research and application.
Most water bodies around the world suffer from pollution to varying degrees. Floating treatment wetlands (FTWs) are a simple and efficient ecological treatment technology and have been widely studied and applied as a sustainable solution for different source waters. Based on the analysis of abundant literature in the last ten years, this paper systematically reviews the history and the latest development of FTWs. Meanwhile, the treatment performance and pollutant removal mechanisms of FTWs on the natural water, stormwater, domestic wastewater, industrial wastewater, and agricultural runoff are analyzed. In particular, very interesting information is provided, such as water depth, water surface coverage, the ratio of dissolved to total phosphorous (DRP/TP), the ratio of nitrogen to phosphorous (N/P), BOD/COD ratio, and its effects on the efficiency and removal mechanisms of FTWs. This information will provide useful references and guidance for optimizing the design of FTW and pollutant treatment efficiency of different source waters. This paper also provides an objective review of the limitations of FTWs. Subsequently, the enhancements of FTW technology which are recognized to be effective, including aeration, adding functional fillers or obligate degrading bacteria, and construction of hybrid FTWs, are summarized and recommendations are made for further research.
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