低温条件下生物滤池外加磷源恢复运行研究  

Recovery of biofilter at low temperature by addition of phosphates

作　　者：谢曙光[1] 张晓健[2] 王占生[2] 

机构地区：[1]北京大学环境学院环境科学系,北京100871 [2]清华大学环境科学与工程系,北京100084

出　　处：《给水排水》2004年第10期5-7,共3页Water & Wastewater Engineering

基　　金：北京市重大科技攻关项目(9550610400-05-03)

摘　　要：低温条件下(低于1℃)外加磷源恢复生物滤地运行的研究表明,对于磷浓度偏低的原水(官厅水库入库水),生物滤池可以通过短时间内持续外加磷源的方法来迅速恢复和提高对有机物的去除能力,但生物滤池对氨氮去除能力需5～7d才能完全恢复。间歇试验结果表明,原水中磷浓度偏低时适当外加磷可以提高异养和自养生物膜活性,但溶液中磷浓度增加到一定值后生物膜活性不再增加。Recovery of biofilter with external addition of phosphates at low temperature (below 1 ℃) was conducted in this study. For raw water (inflow of Guanting Reservoir) with low phosphate concentration, the recovery of heterotrophic biofilm activity at low temperature could be sped up by continuously short-term addition of phosphates, however, 5-7 days was necessary for the full recovery of autotrophic biofilm activity. The batch test also indicated the addition of phosphate could enhance the heterotrophic and autotrophic biofilm activity when the concentration of solvable phosphate in influent was below a certain limit, but the enhancement would cease when the phosphate concentration exceeding the limit.

关 键 词：生物滤池 去除能力 生物膜 磷源 氨氮去除 间歇试验 官厅水库 磷浓度 低温条件 入库 

分 类 号：TU991[建筑科学—市政工程] X703[环境科学与工程—环境工程]