净化高铁锰伴生氨氮地下水的生物滤池快速启动  

Rapid Start-up of Biofilter Purifying Groundwater Containing High Concentrations of Iron,Manganese and Ammonia Nitrogen

作　　者：程庆锋[1] 李冬[2] 李相昆[1] 杨柳[1] 张杰[1] 

机构地区：[1]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090 [2]北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京100124

出　　处：《中国给水排水》2013年第7期41-44,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51222807);教育部新世纪优秀人才支持计划项目(NCET-10-0008)

摘　　要：采用生物滤池处理高铁、高锰、高氨氮地下水时,存在启动时间长的问题,鉴于此,采用双层滤料、单层滤料回流、单层滤料不回流三种启动方式同时启动三根滤柱,考察双层滤料和回流对启动时间的影响。结果表明,采用双层滤料或回流均能有效缩短启动时间,三根滤柱出水中的总铁、锰、氨氮分别在第82、81、103天降到了0.3、0.05、0.2 mg/L以下。进一步的分析发现,铁主要在0～0.4 m滤层被去除,锰的去除最初是锰砂吸附,当氨氮浓度降到一定程度后,生物除锰效果迅速提高,锰和氨氮均主要在0～0.4 m滤层被去除。Biofilter has a problem of long start-up period when it is adopted to purify groundwater containing high concentrations of iron, manganese and ammonia nitrogen. In order to investigate the effect of double-filtering media and circulation reflux on start-up, three starting modes were adopted in three same filters with double-filtering media, circulation reflux of single-filtering media and no circulation reflux of single-filtering media, respectively. The results showed that double-filtering media or circulation reflux was an effective way to shorten the start-up period. The total iron, manganese and ammonia nitrogen in the effluent of the three filters were below 0.3 mg/L, 0.05 mg/L and 0.2 mg/L on the 82nd, 81st and 103rd day, respectively. Iron was removed mainly in the depth of 0 to 0.4 m. Manganese was adsorbed by manganese sand at the beginning, and biological manganese removal was improved gradually after ammonia nitrogen was reduced to a certain extent. Manganese and iron were removed mainly in the depth of 0 to 0.4 m.

关 键 词：高铁 高锰 高氨氮地下水 生物净化 启动 回流 双层滤料 

分 类 号：X703[环境科学与工程—环境工程]