Application of Constructed Wetlands on Wastewater Treatment for Aquaculture Ponds

查看全文 作　　者：LI [1,2,3]Gu;WU [1]Zhenbin;CHENG [1]Shuiping;LIANG [1]Wei;HE [1]Feng;FU [1]Guiping;ZHONG [1,3]Fei

机构地区：[1]Institute of Hydrobiology, Chinese Academy of Sciences/State Key Laboratory of Freshwater Ecology and Biotechnology, Wuhan 430072, Hubei, China;[2]Yangtze River Fishery Institute, Chinese Academy of Fishery Sciences, Jingzhou 434000, Hubei, China;[3]Graduate University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Wuhan University Journal of Natural Sciences》索引2007年第12卷第6期,共5页

基　　金：Supported by the National High Technology Research and Development Program of China (863 Program) (2002AA601150);the Knowledge Innovation Program Key Project of Chinese Academy of Science (KSCX2-SW-102);Open Project of Key Labora-tory of Treutment, Chinese Academy of Fishery Sciences (2003-01) 摘　　要：A group of constructed wetlands (CWs) were applied to the recir-culating aquaculture system. This study assessed the performance of CWs in treating the aquaculture wastewater, examined the water quality condition of aquaculture ponds and the growth and the survival rate of 'target' species (Ictalurus punctatus and Megalobrama amblycephala). The results showed that CWs were effective on reducing the concentrations of 5-day biochemical oxygen demand (BOD5, at 70.5%), total suspended solids (TSS, at 81.9%), chlorophyll a (Chl-a, at 91.9%), ammonium (NH4+, at 61.5%) and nitrate nitro-gen (NO3--N, at 68.0%). Effect of CWs on phosphate (PO43--P) removal was relatively lower (at 20.0%). The concentrations of BOD5, TSS, Chl-a, NH4+ and TN, TP in the recirculating culture pond were significantly lower than that in the control pond( p0.05∧). CWs could help to increase total yield, survival rate of the 'target' species and significantly decrease feed conversion ratio ( p0.05∧). 关键词：湿地构造在循环水产养殖系统污水处理环境保护

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Application of Constructed Wetlands on Wastewater Treatment for Aquaculture Ponds

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