Application of High-efficient Vertical Flow Constructed Wetland in Treatment of Domestic Sewage in Residential Community

With the increase of requirement for ecological function of environment,for quality of water environment,for sewage treatment cost and for comprehensive utilization of water resources,it was bound to introduce a new type of ecological technology for pollution treatment which was low in cost,convenient in management and stable in operation.Constructed wetland of high-efficient vertical flow developed by Shenzhen Academy of Environment and Science was characterized by good landscape effect and high efficiency of pollutants removal,and it had been widely applied in sewage treatment and recycling and in lake water circulation purification.A lot of practical results showed that this technology can achieve high removal efficiency of SS,COD,BOD5,NH4-N and TP and the removal rate had arrived at more than 80% when hydraulic loading was 0.33-0.50 m/d.Effluent quality had met the water quality standard for recycling of urban sewage.