中文

Journal of Shanghai University（Natural Science Edition） ›› 2010, Vol. 16 ›› Issue (5): 503-507.

• Environmental and Chemical Engineering • Previous Articles     Next Articles

Eutrophicated Landscaping Water Remediation by Combination of  Constructed Waterfall and Wetland

  

  1. 1. State Key Laboratory of Urban Water Resource and Environment，Harbin Institute of Technology, Harbin 150090, China; 2. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
  • Received:2010-04-08 Online:2010-10-30 Published:2010-10-30

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Abstract:

Waterfall and wetland were used to remedy landscaping water. Partial recycling was carried out to maintain water quality. The result showed that aerobic microbes in constructed wetland reduce the concentration of NH+4-N to 0.5 mg·L-1, and the concentration of TP was lower than the other two sites. C/N of each site rose from the initial 6~7 to 12~16. Alternative aerobic and anaerobic area in wetland system effectively removed nitrogen. N/P fell from 30~31 to 3. Waterfall and wetland maintained the pH value of water. Removal rate of NH+4-N increased from 3.4%~10.4% to 24.6%~44.2%, and removal rate of TP increased from 0.5%~25.0% to 71.0%. Apart from oxygen supplying, combination of vegetable and microbes is also needed to remove contamination in landscaping water.

Key words: wetland; waterfall; ecological remediation; landscaping water

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