摘要
Abstract
A municipal wastewater treatment plant (WWTP) with capacity of 5 × 104 m3/d is described.A combined process of inverted AAO in plant plus constructed wetland outside plant has been used.The effluent quality in plant can meet the first level B criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).The effluent quality of constructed wetland can meet the first level A criteria specified in Discharge Standard of Pollutants for Municipoll Wastewater Treatment Plant (GB 18918-2002) and Reuse of Urban Recycling Water-Water Quality Standard for Landscape Environment Uses (GB/T 18921-2002).The plant has been operating steadily for more than 5 years.The removal rates of C ODcr,BOD5,TP,NH3-N,TN and SS are 88.91％,96.13％,92.60％,97.04％,65.60％ and 97.35％,respectively.In addition,some suggestions on optimizing operation management are put forward in the light of the problems occurring in the operation.This can provide some suggestions for the application of secondary treatment plus constructed wetland of municipal WWTP.关键词
污水处理厂/二级出水/人工湿地/深度处理/运行效果Key words
wastewater treatment plant (WWTP)/secondary effluent/constructed wetland/advanced treatment/operation effect分类
建筑与水利
