摘要
某城镇污水处理厂生物处理单元采用改良CASS工艺,工业废水占比约70%,进水碳源不足且有毒物质较多导致污泥活性严重受损,出水氮磷指标居高不下。针对进水水质水量波动大等问题,以改良CASS工艺为基础,对其生物处理单元进行临时改造。采取投加活性炭、补充碳源和优化工艺运行参数等方式来提高生物脱氮除磷能力使系统能够稳定运行,出水水质达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。
Improved CASS process was used in the biological treatment unit of municipal wastewater treatment plant,with industrial wastewater accounting for about 70%.The insufficient carbon source and more toxic substances in the inlet water caused serious damage to the sludge activity,and the effluent nitrogen and phosphorus indexes remained high.In order to solve the problem of big fluctuation of inlet water quality and quantity,the improved CASS process was used as the basis for the temporary modification of biological treatment unit.The capacity of biological nitrogen and phosphorus removal was improved by adding activated carbon,supplementing carbon sources and optimizing process operation parameters,so that the system could operate stably,and the effluent quality met first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918—2002).
作者
高健磊
翁伟
闫怡新
王文豪
Gao Jianlei;Weng Wei;Yan Yixin;Wang Wenhao(School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China;Zhengzhou University Multi-Functional Design and Research Academy Co.,Ltd.,Zhengzhou 450002,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2021年第3期125-128,136,共5页
Industrial Water Treatment
关键词
城镇污水处理厂
改良CASS工艺
高比例工业废水
调试
municipal wastewater treatment plant
improved CASS process
high proportion of industrial wastewater
commissioning
