摘要
针对周期循环活性污泥法处理生活污水的影响因素,通过单因素分析法论证运行周期、曝气速率、排水比对COD去除率和氨氮去除率的影响。试验结果表明,运行周期6 h、曝气速率0.25 m3/L、排水比1/3是CASS池的最佳运行条件,并且出水COD和氨氮浓度均达到城市杂用水水质标准的要求。
According to the influencing factors in the treatment of domestic waste water by cyclic activated sludge system（CASS）,the single factor analysis method is used to demonstrate the effects of circulation period,aeration rate and drainage ratio on the removal rate of COD and ammonia nitrogen.The results show that the circulation period of 6 h,aeration rate of 0.25 m3/L and drainage ratio of 1/3 are the best operation conditions for CASS pool,and the effluent COD and the density of ammonia nitrogen both meet the requirements of miscellaneous urban water quality standards.
出处
《水利与建筑工程学报》
2013年第4期5-7,共3页
Journal of Water Resources and Architectural Engineering
基金
国家科技支撑计划项目(2007BAC26B03)
水利水电重点学科基金资助
关键词
周期循环活性污泥法
运行周期
曝气速率
排水比
cyclic activated sludge system（CASS）
circulation period
aeration rate
drainage ratio
