CASS工艺提标改造A^(2)O工艺技术应用  

Application of Transformation of CASS biochemical process into A^(2)O process technology

作　　者：李君 LI Jun(PAN-CHINA Construction Group CO.,Ltd.,Beijing 100000,China)

机构地区：[1]泛华建设集团有限公司,北京100000

出　　处：《山西化工》2021年第3期183-188,共6页Shanxi Chemical Industry

摘　　要：某生活污水处理厂于2009年建设,一期设计规模为1万m 3/d,出水水质执行《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B排放标准。现运行的CASS工艺脱氮除磷效果较差,不满足现阶段出水达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A排放标准的要求。解决方式为将原有CASS生物池改为A^(2)O工艺,经改造后,除磷脱氮效果好,出水效果稳定且达标。The design scale of the domestic sewage treatment plant of Luxi county is 10,000 cubic meters/day for the phase I,it was built in 2009.The effluent quality implements the first class B Discharge standard of pollutants for municipal wastewater treatmentplant(GB18918-2002).The current CASS process has A poor denitrification and phosphorus removal effect,and the terminal effluent often cans not meeting the requirements of the first class A Discharge standard of pollutants for municipal wastewater treatmentplant?(GB18918-2002).Solution:change the original CASS biological pool to A^(2)O process.Conclusion:the effect of phosphorus removal and nitrogen removal was good,and the effluent reached the standard stably.

关 键 词：CASS工艺 A^(2)O工艺 除磷脱氮 CODCR BOD 5 

分 类 号：X703[环境科学与工程—环境工程]