摘要
无锡市城北污水处理厂是太湖流域较早建设的复合型人工湿地提标处理示范工程,已稳定运行了3 a多。介绍该厂污水处理工艺流程、工程设计参数和基质植物配置情况。对污水处理厂人工湿地系统实际运行数据进行分析,表明该工艺运行稳定可靠,出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)中的一级A排放标准,CODCr、NH3-N、TN和TP去除率分别为27.5%、42.5%、20.4%和29.4%。探讨了运行过程中出现的植物选择不合理、处理效果受进水水质影响较大等问题,并在此基础上对人工湿地系统的设计提出建议。
Wuxi Chengbei Wastewater Treatment Plant was an early built complex artificial wetlands upgrading process demonstration Project in Taihu Basin.It has been stably operated for more than 3 years.The article introduces technology flow,engineering design parameters,and matrix and plant configuration of this WWTP.Based on the analysis of practical operation data of the artificial wetland system in WWTP,the result shows that this technology operation is stable and reliable.And the effluent quality can be up to the acriteria of Class I specified in Discharge Standard of Pollutants from Municipal Wastewater Treatment Plant(GB18918-2002).The results show that the removal rates of the CODCr,NH3-N,TN and TP are 27.5%,42.5%,20.4% and 29.4% respectively.This thesis discusses some problems of unreasonable plant selection and great influence of the influent quality on treatment effect under its operation.On this basis,this thesis puts forward the proposal for the design of the complex artificial wetlands system.
出处
《城市道桥与防洪》
2012年第12期97-99,11,共3页
Urban Roads Bridges & Flood Control
关键词
污水处理厂
复合型人工湿地
处理效果
提标改造
wastewater treatment plant,complex artificial wetlands,treatment effect,upgrading reconstruction
