生物滞留池处理化粪池出水的试验研究  

Experimental Study on Treatment of Septic Tank Effluent by Biological Retention Tank

作　　者：邓延慧[1] 王正文 张弘[2,3] Deng Yanhui;Wang Zhengwen;Zhang Hong(Jiangsu Provincial Academy of Environmental Science,Nanjing,Jiangsu 210036,China;School of Civil Engineering,Southeast University,Nanjing,Jiangsu 211100,China;SEU-Monash Joint Graduate School(Suzhou),Suzhou,Jiangsu 215123,China)

机构地区：[1]江苏省环境科学研究院,江苏南京210036 [2]东南大学土木工程学院,江苏南京210096 [3]东南大学-蒙纳士大学未来城市联合研究中心,江苏苏州215123

出　　处：《绿色科技》2021年第4期91-94,共4页Journal of Green Science and Technology

摘　　要：指出了化粪池是农村生活污水收集和处理的主要方式,但作用有限,直排仍会造成水体污染。化粪池出水经进一步处理后排入附近沟塘或就地农用是可行途径之一。为此,进行了不同水力负荷运行条件下的试验结果表明:生物滞留池对处理化粪池出水中的LAS、COD cr、NH^(+)_(4)-N的效果显著,平均去除率分别为94.6%、97%和88%,出水水质均达到了《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准;对化粪池出水中TN和TP的处理效果不佳,出水水质未能达到排放标准。总体出水水质符合《农田灌溉水质标准》(GB5084—2005)中灌溉蔬菜的标准,因此可以考虑将其作为农村灌溉用水。试验研究结果表明生物滞留池可作为化粪池出水的简便处理单元。Septic tanks are the main method of collecting and processing domestic sewage in rural areas,but their effects are limited,and direct drainage will still cause water pollution.It is one of the feasible ways that the effluent from the septic tank is further processed and discharged into nearby ponds or on-site agricultural use.The test results under different hydraulic load operating conditions show that the biological retention tank has significant effects on the treatment of LAS,CODcr,and NH^(+)_(4)-N in the effluent from the septic tank with an average removal rate of 94.6%,97%and 88%,respectively.The effluent quality all have reached the Urban Sewage Treatment Plant Pollutant Discharge Standard(GB18918-2002)Class A standard;the treatment effect of TN and TP in the effluent from septic tanks is not good,and the effluent quality fails to meet the discharge standards.The overall effluent water quality meets the standards for irrigating vegetables in the Farmland Irrigation Water Quality Standard(GB5084-2005),so it can be considered as rural irrigation water.The research results show that the biological retention tank can be used as a simple treatment unit for the effluent from the septic tank.

关 键 词：生物滞留池 化粪池 水力负荷 

分 类 号：X703[环境科学与工程—环境工程]