利用城市生态河道深度净化污水处理厂出水的工程技术研究  

Tertiary treatment of secondarily-treated WWTP effluent by ecological river

作　　者：唐运平[1,2] 张志扬[2] 邓小文[2] 袁敏[2] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]天津市环境保护科学研究院,天津300191

出　　处：《环境工程学报》2009年第7期1165-1169,共5页Chinese Journal of Environmental Engineering

基　　金：国家"863"高技术研究发展计划项目(2003AA601030);天津市科技发展计划项目(05ZHGCGX01600)

摘　　要：提出了城市生态河道工程构建的技术方法,并研究了示范工程对城市污水处理厂出水的深度净化规律。实验结果表明,在保证生态景观功能的前提下,将生态河道技术工艺用于污水处理厂出水的深度净化,能够高效、稳定地去除氮磷等营养物,河道出水可以满足城市景观水体补充水源的水质要求,出水TP、PO43-、TN、NH3-N和NO3-N平均值分别达到0.263、0.116、2.570、0.752和2.438 mg/L,去除率分别达到85.4%、92.8%、60.8%、39.7%和77.2%。The technical methods for urban ecological river construction are proposed, and the advanced purification of the secondarily-treated WWTP effluent in a full-scale demonstration project is studied. It is shown that ecological-engineered urban river can be used for tertiary treatment of WWTP effluent with high and stable nutrients removal efficiencies when keeping its landscape function. The treated effluent can meet the water quality standards for scenic environmental use, the average concentrations of TP,PO4^3- , TN, NH3-N and NO3-N,are 0. 263 mg/L, 0. 116 mg/L, 2. 570 mg/L, 0. 752 mg/L and 2. 438 mg/L respectively.

关 键 词：生态河道 深度净化 污水厂出水 

分 类 号：X703.1[环境科学与工程—环境工程]