Membrane and Water Treatment

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Developing a composite vertical flow constructed wetlands for rainwater treatment

  • Ahmed, Sanjrani Manzoor (School of Resources and Environmental Engineering, Wuhan University of Technology) ;
  • Zhou, Boxun (School of Resources and Environmental Engineering, Wuhan University of Technology) ;
  • Zhao, Heng (School of Resources and Environmental Engineering, Wuhan University of Technology) ;
  • Zheng, You Ping (School of Resources and Environmental Engineering, Wuhan University of Technology) ;
  • Wang, Yue (School of Resources and Environmental Engineering, Wuhan University of Technology) ;
  • Xia, Shibin (School of Resources and Environmental Engineering, Wuhan University of Technology)
  • Received : 2019.04.30
  • Accepted : 2020.01.15
  • Published : 2020.03.25
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Abstract

The worldwide shortage of water resources is a major environmental issue. Using pure water for drinking and domestic purposes is a bigger issue than other environmental issues. Industrialization and Urbanization have even polluted rainwater. In China, when it rains, rainwater is stored on the roof or other sources of storage for daily use resulting in pollution. Several studies have been conducted to treat rainwater. The objective of this study is to evaluate the efficiency of constructed wetlands by using ACF as a medium. So, this study aims to treat rainwater in Wuhan city through a Composite Vertical Flow Constructed Wetlands. First, rainwater was stored in the tank while it flows out of the roof, further it is processed in constructed wetlands. The constructed wetlands is consisted with plants Calamus and Chives, adding ACF (prepared from luffa) has achieved great results in this study. Results show that the pollutants have been removed to a considerable level, there were significant differences in removal rates under different HRT at 6h, 9h and 12h respectively. Therefore, Composite Vertical Flow Constructed Wetlands is recommended for total nitrogen and Ammonia nitrogen and total phosphorus.

Keywords

Acknowledgement

This research was supported by the Demonstration of Integrated Management of Rocky Desertification and Enhancement of Ecological Service Function in Karst Peakcluster Depression (grant no.:2016YFC0502400).

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