摘要
研究结果表明,以凤眼莲为主的半人工水生生态系统对缫丝废水具有较好的强化净化作用,对该废水中的TSS的去除率为95.7％,COD_(cr)为92.0％,BOD_5为96.6％,总氮(TN)为85.6％,NH_4^+—N为79.8％,总磷(TP)为86.6％,PO_4^(3-)—P为88.7％,出水已达到无公害排放。从处理沟中收获的凤眼莲作为青饲料养鱼亦取得显著效益,从而使环境效益、经济效益和社会效益得到较好的统一。最后,对该生态系统实施和管理中的若干技术关键进行了初步探讨。
The research indicates that the purification of silking wastewater can be strenthened well bythe semi-artificial aquatic ecosystem covered with water hyacinth (Eichhornic crassipes).The purification rates are 95.7%, 92.6%, 96.6%, 86.6%, 79.8%, 90.5% and 88.7% for TSS, BOD5, CODcr, TN, NH4+-N, TP and PO43---P respectively. After this process, the wastewater can be discharged harmlessly. The water hyacinth harvested from the pond can be provided for breeding fish and the economic benefits is signficant. So the environmental, economic and social benefits are well integrated.At last,some key problems of practising and managing the ecosystem are discussed.
出处
《农村生态环境》
CSCD
1991年第4期54-58,43,共6页
Rural Eco-Environment
