化粪池污水处理能力研究及其评价  

Research and Evaluation on Wastewater Treatment Capacity of Septic Tank

作　　者：王红燕[1] 李杰[1] 王亚娥[1] 郝火凡[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2009年第1期118-120,124,共4页Journal of Lanzhou Jiaotong University

摘　　要：通过对西北地区典型城市兰州市某居民区化粪池的调查,分析了生活污水通过化粪池后水质的变化及其对各污染指标的去除率.结果表明,生活污水经化粪池处理后,CODCr、BOD5、总氮、总磷、动植物油浓度均有降低,年平均去除率分别达到83.6%,51.1%,64.3%,68.2%,75.6%.污水的可生化性有明显提高.研究结果对于全面评价化粪池的功能特征,进而为化粪池的取舍提供技术参考.Through investigating the septic tank of a residential area in the typical city of northwest region- Lanzhou,the change of sewage quality and the removal rate of pollutants indicators after passing septic tanks was analyzed. The results showed that, after the septic tanks treatment, the concentration of CODCr, BODs,nitrogen,total phosphorus, animal and vegetable oils in domestic wastewater reduced. The average annual removal rate of them reached to 83. 6%, 51.1%, 64. 3%, 68. 2%, 75. 6% respectively. And the biodegradation of wastewater was improved obviously. The results provide technical reference to the problem on setting or canceling the septic tank by comprehensively evaluating the functions and characteristics of septic tanks.

关 键 词：化粪池 可生化性 处理能力 生活污水 

分 类 号：X703[环境科学与工程—环境工程]