摘要
概述了CASS工艺的运行特点,作为SBR的一种变形,CASS工艺具有SBR的优点,且克服了SBR不能单池运行的缺点。在主反应池前增加预反应区,对活性污泥进行选择性培养,克服污泥膨胀,有利于污水处理系统的稳定运行。预反应区处于兼氧状态,主反应区好氧厌氧交替运行,通过污泥回流能有效去除氨氮。CASS的工艺特点决定了CASS工艺的建设费用低于传统的活性污泥法。
This thesis makes an overview on the operational features of CASS craft.CASS,as variant of SBR,not only possesses the advantages of SBR,but also overcomes the shortcoming which SBR can＇t operate single-cell.Increasing pre-reaction zone before the main reaction tan and making a selective cultivation to the activated sludge and hurdle the dirty mud expanding,meanwhile,it is conductive to the stable operation of sewage treatment system.Pre-reaction zone is in oxygen status,aerobic and anaerobic are alternately operated in the main reaction zone,and thus ammonia-nitogen can be effectively removed through the sludge running back.CASS technical characteristics decide the construction cost of CASS less than the conventional activated sludge process.
出处
《山西建筑》
2010年第14期169-170,共2页
Shanxi Architecture
关键词
CASS工艺
污泥膨胀
高氨氮处理
低温污水
经济评价
CASS craft
dirty mud expanding
high ammonia-nitrogen treatment
low-temperature dirty water
economic evaluation
