江苏农村“三格式”化粪池污水处理效果评价  

Evaluation of Night Soil Treatment Efficiency of "Three-Grille-Mode" Septic Tanks in the Rural Area of Jiangsu

作　　者：王玉华[1] 方颖[2] 焦隽[3] 

机构地区：[1]南京林业大学森林资源与环境学院 [2]国家环境保护总局南京环境科学研究所,江苏南京210042 [3]南京农业大学农学院,江苏南京210095

出　　处：《生态与农村环境学报》2008年第2期80-83,共4页Journal of Ecology and Rural Environment

基　　金：江苏省环境保护厅科技发展项目(2005012)

摘　　要："三格式"化粪池是江苏农村改厕中普遍使用的1种污水处理方式,约占全省农村卫生厕所的50%,其处理效果直接影响农村水环境质量。在江苏省9个县(市、区)中选取168户农民正常使用的"三格式"化粪池作为研究对象,于2006年6月至8月每隔5 d、连续3次分别在其进、出口采取水样进行监测、分析。结果表明,"三格式"化粪池对CODC r、TN和TP的去除率分别为48.51%、6.83%和23.92%;苏南地区好于苏中地区,苏北地区最差;"三格式"化粪池处理效果差于沼气化粪池,处理后的尾水未达国家污水排放标准,排入环境会造成较大影响。＂Three-Grille-Mode＂ septic tank is a common approach used in renovating latrines in the rural areas in Jiangsu, accounting for about 50% of the total sanitary latrines in the area. Its treatment efficiency directly affects quality of the rural water environment. A total of 168 normally running ＂Three-Grille-Mode＂ latrines in 9 cities （counties） of Jiangsu were selected as objects of the research. In the period from June to August, 2006, water samples were collected at the inlet and outlet of the latrines 3 times consecutively with an interval of 5 days. Analysis of the samples showed that ＂Three-Grille-Mode＂ septic tanks could reduce CODcr by 48.51%, TN by 6.83% and TP by 23.92%, and the efficiency varied with the influent concentration, and followed a decreasing order of South Jiangsu 〉 Central Jiangsu 〉 North Jiangsu. Generaly its treatment efficiency was lower than the biogas-digester＇s. The treated water flowing out of the septic tanks fails to meet the criteria of the national standard for wastewater discharge and its discharge will significantly affect the environment.

关 键 词：“三格式”化粪池 处理效果 评价 江苏 

分 类 号：X820.6[环境科学与工程—环境工程]