复合人工湿地对水禽污染废水的净化效果

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Abstract

A constructed wetlands research was conducted to reduce nutrient loads to the eutrophic lake in Beijing Wildlife Rescue Center based on the combination of surface flow constructed wetland(SFCW) and subsurface flow constructed wetland (SSFCW).The purification effects of wetlands on total phosphorus(TP),total nitrogen(TN),turbidity,and chemical oxygen demand(CODcr) were studied.The results indicated that the removal rates of TP,TN,turbidity,and CODcr by SFCW were 68%, 31%,93%,and 55%;the removal rates by SSFCW were 75%,67%,55%,and 50%;the removal rates by CW were 80%,50%, 95%,and 90%,respectively.The different types of wetlands had no significant differences in the removal contents of TP and TN, or removal rate of TN(P>0.05),but had significant differences in the removal rate of TP,turbidity,and removal content and removal rate of CODcr(P<0.05).The relationships of the concentrations of TP,TN,and CODcr between the influents and effluents have been proposed.The Pearson's correlation coefficients were 0.948,0.994,0.952,0.948,0.995,and 0.958,as well as 0.963,0.990,and 0.927.The turbidities between influents and effluents in CW were consistent with the law of polynomial equation,and the Pearson's correlation coefficients were 0.523(R²=0.451,P>0.05),0.854(R²=0.8756,P<0.05),and 0.086 (R²=0.197,P>0.05).

Key words： constructed wetland surface wetland subsurface wetland waterfowl pollution purification

Received: 25 August 2011

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	Articles by authors
	CUI Li-juan
	LI Wei
	ZHANG Yan
	ZHANG Man-yin
	WANG Yi-fei
	ZHAO Xin-sheng
	LI Sheng-nan

Cite this article:

CUI Li-juan,LI Wei,ZHANG Yan, et al. Research on purification effect on waterfowl sewage of constructed wetland[J]. , 2011, 30(4): 446-453.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2011/V30/I4/446

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