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Use of multiple water surface flow constructed wetlands for non-point source water pollution control

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Abstract

Multiple free water surface flow constructed wetlands (multi-FWS CWs) are a variety of conventional water treatment plants for the interception of pollutants. This review encapsulated the characteristics and applications in the field of ecological non-point source water pollution control technology. The roles of in-series design and operation parameters (hydraulic residence time, hydraulic load rate, water depth and aspect ratio, composition of influent, and plant species) for performance intensification were also analyzed, which were crucial to achieve sustainable and effective contaminants removal, especially the retention of nutrient. The mechanism study of design and operation parameters for the removal of nitrogen and phosphorus was also highlighted. Conducive perspectives for further research on optimizing its design/operation parameters and advanced technologies of ecological restoration were illustrated to possibly interpret the functions of multi-FWS CWs.

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Acknowledgements

This study was financially supported by the National Science and Technology Special Water Pollution Control and Management Project in 13th Five-Year (2014ZX07101-012; No. 2017ZX07401004; No. 2017ZX07401003).

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Correspondence to Binghui Zheng or Minsheng Huang.

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Li, D., Zheng, B., Liu, Y. et al. Use of multiple water surface flow constructed wetlands for non-point source water pollution control. Appl Microbiol Biotechnol 102, 5355–5368 (2018). https://doi.org/10.1007/s00253-018-9011-8

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