组合填料曝气生物滤池处理受污地表水的研究  

TREATMENT OF POLLUTED SURFACE WATER BY COMBINED MEDIUM BIOLOGICAL AERATED FILTER

作　　者：杜永祥[1,2] 沈耀良[1,2] 许松瑜[2] 占茹[2] 

机构地区：[1]苏州科技学院,江苏省环境科学与工程重点实验室,江苏苏州215011 [2]苏州科技学院环境科学与工程学院,江苏苏州215011

出　　处：《水处理技术》2011年第12期120-123,130,共5页Technology of Water Treatment

基　　金：江苏省环境科学与工程重点实验室开放课题(Zd081203)

摘　　要：采用陶粒-沸石-活性炭组合填料曝气生物滤池,对受污地表水体的处理效能进行了研究,考察了气水比和水力负荷对曝气生物滤池处理效果的影响。结果表明,气水比、水力负荷对COD的去除效果影响较大,而对氨氮含量和浊度的去除效果影响很小;在气水体积比为2:1、水力负荷为0.382 m3.m-2.h-1、温度为16～31℃的条件下,组合填料曝气生物滤池具有较好处理效果,出水CODMn和氨氮的质量浓度分别在2 mg.L-1和0.15 mg.L-1以下。The lab-work was carried out with ceramisite-zeolite-activated carbon combined medium biological aerated filter for the treatment of polluted surface water. The influencing factors such as gas to liquid ratio and hydraulic loading rate were also investigated. The results showed that gas to liquid ratio and hydraulic loading rate had greater impact on the permanganate index removal, but less on the ammonia nitrogen and turbidity removal. Under the condition of gas to liquid ratio 2：1, hydraulic loading below 0.382 m3·m-2.h-1, temperature 16℃ to 31 ℃, combined medium biological aerated filter had better effect on the treatment of polluted surface water, the effluent permanganate index and ammonia nitrogen concentration reduced to about 2 mg- L-1 and 0.15 mg.L-1 below respectively.

关 键 词：曝气生物滤池 气水比 水力负荷 填料层高度 

分 类 号：X703.1[环境科学与工程—环境工程]