上向流好气滤池冬季挂膜启动及运行参数探讨  

Probe into start-up methods and optimum running parameters of upflow aerobic filters in winter

作　　者：朱兆亮[1,2] 曹相生[1] 孟雪征[1] 张杰[1] 

机构地区：[1]北京工业大学建筑工程学院水质科学与水环境恢复工程北京市重点实验室,北京100022 [2]山东建筑大学市政与环境工程学院,济南250101

出　　处：《环境工程学报》2009年第2期215-218,共4页Chinese Journal of Environmental Engineering

基　　金：国家高技术研究发展计划(863)项目(2003AA601010);北京市优秀人才培养资助项目(20061D0501500207)

摘　　要：好气滤池同时具有普通滤池和曝气生物滤池的优点，能对二级出水中的COD、氨氮和浊度等指标进一步去除，提高再生水水质。试验探讨了冬季好气滤池的挂膜启动方法和运行参数，提出采用逐渐增加流量到设计流量的自然挂膜法，同时提出运行采用上向流；滤速1m／h；气水比采用（1～3）：1；填料填充高度与滤料直径有关；出水水头损失增加到1m作为过滤周期的终点；适宜的冲洗强度冲洗滤池后，4h内能恢复到滤池反冲洗前的处理状态。冬季低温条件延长了好气滤池的挂膜启动时间，但不影响挂膜质量；为保证出水质量，对好气滤池的运行滤速要通过试验确定。Aerobic filters have the advantages of both common filters and biological aerated filter. The COD, ammonia nitrogen and turbidity of secondary effluent can be farther removed by aerated filter and the reclaimed water qualities are improved. The tests discussed start-up methods and optimum running parameters of aerobic filters in winter. The results are as follows ： incremental flowrate can accelerate the start-up of the aerated filters, 1 m/h as upflow rate, （ 1 - 3） ： 1 as water gas ratio, the filter bed depth relates to filter material size, backwashing when the effluent headloss goes up 1m and the filter can be regenerated in 4 hours. The start-up time was prolonged at low temperature, but the media of filter were covered with stable biofilm. The filter flowrate is confirmed by lab experiment in winter to ensure effluent quality.

关 键 词：好气滤池 挂膜 二级出水 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]