垂向移动式生态床与生态浮床对低污染水净化效果的比较

Purification efficiency of lightly polluted water by vertical moveable eco-bed and ecological floating bed

采用垂向移动式生态床与生态浮床两种生态处理技术对太湖入湖河流低污染水进行了处理试验.结果表明,垂向移动式生态床对COD、NH3-N、NO3-N、TN和TP的去除率分别为38.6%、59.2%、89.6%、51.5%和78.6%,生态浮床对上述物质的去除率分别为40.7%、47.9%、85.1%、54.2%和62.5%.垂向移动式生态床技术对NH3-N、NO3-N和TP的去除率高于生态浮床技术,但后者对COD和TN的去除效果略优于前者.

Vertical moveable eco-bed and ecological floating bed were used to treat lightly polluted water of an inflowing river of Taihu Lake. The results showed that the removal rates of vertical moveable eco-bed for COD, NH3-N, NO3-N, TN, and TP in the water were 38.6%, 59.2%, 89.6%, 51.5%, and 78.6%, respectively. The removal rates of the five pollutants by the ecological floating bed were 40.7%, 47.9%, 85.1%, 54.2%, and 62.5%, respectively. The removal rates of NH3-N, NO3-N, and TP by the vertical moveable eco-bed were higher than those by the ecological floating bed, but the removal rates of COD and TN in the latter was higher than that in the former.