BAF工艺处理微污染含铁锰地下水试验研究  

Treatment of micro-polluted groundwater containing iron and manganese by BAF process

作　　者：商俊[1] 傅金祥[1] 赵玉华[1] 武卫斌[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《供水技术》2011年第2期8-11,共4页Water Technology

摘　　要：采用BAF工艺处理微污染含铁锰地下水，研究了其净化效能和适宜的运行条件。结果表明，在水力负荷为4～5m。／（m^2·h），气水比为3：1～4：1的试验条件下，BAF工艺能有效去除氨氮、锰、铁、CODMn。和浊度。当原水铁含量小于2mg／L，滤层中部DO在4mg／L左右时，对氨氮的去除效果最佳。微量Fe^2＋即可维系滤层的生态环境，使BAF工艺保持高效的除锰效能。The purification efficiency and optimmn operation conditions of biological aerated filter （BAF） process, which treated micro-polluted groundwater containing iron and manganese were investigated. The results indicated that ammonia nitrogen,manganese,iron, CODMn and turbidity could be removed effectively by BAF process under hydraulic loading at 4 to 5 m3/（m2 · h） and an air-water ratio of 3 ： 1 and 4 ： 1. The optimum removal efficiency of ammonia nitrogen was obtained when the iron concentration of raw water was lower than 2 mg/L and DO was about 4 mg/L in the middle of the filter bed. A small amount of Fe2＋ could maintain the ecological situation of the filter bed and keep high efficiency of the manganese removal by BAF.

关 键 词：BAF工艺 除铁除锰 氨氮 微污染水 

分 类 号：TU991.265[建筑科学—市政工程]