改进的CASS工艺在小区生活污水处理工程中的应用  

APPLICATION OF MODIFIED CYCLIC ACTIVATED SLUDGE SYSTEM(CASS) FOR DOMESTIC WASTEWATER

作　　者：纪荣平[1] 陈剑[1] 俞元阳[2] 

机构地区：[1]扬州大学环境科学与工程学院,江苏扬州225127 [2]江苏石油勘探局勘察设计研究院,江苏扬州225009

出　　处：《水处理技术》2011年第5期117-119,共3页Technology of Water Treatment

摘　　要：采用改进的具有脱氮除磷功能的CASS工艺处理小区生活污水,经过3年多的运行实践,表明该工艺处理效果稳定。当进水COD、BOD5、ρ(SS)、ρ(NH4+-N)和ρ(TP)平均为122.2、43.5、50.6、22.9和2.0 mg.L-1,平均去除率分别达到70.0%、85.6%、82.7%、93.0%和58.5%,出水指标达到城镇污水处理厂污染物排放标准(GB18918-2002)一级A标准,TP达到了一级B标准。An example of treating domestic wastewater by modified-CASS process which has the function of nitrogen and phosphorus removal is introduced.More than three years of continuing operation has shown that the result of wastewater treatment is stable.When the average concentration of COD,BOD5,SS,NH4＋-N and TP are 122.2 mg·L-1,43.5 mg·L-1,50.6 mg·L-1,22.9 mg·L-1 and 2.0 mg·L-1,the average removal rates are 70.0%,85.6%,82.7%,93.0% and 58.5% respectively.The effluent can achieve the standard of discharge standard of pollutants for municipal wastewater treatment plant（GB18918-2002） level A standard,TP can achieve the standard level B.

关 键 词：CASS工艺 小区污水 工艺改进 工程应用 

分 类 号：X799.3[环境科学与工程—环境工程]