生物增强技术净化含铁、锰、氨氮微污染地下水  

Bioaugmentation Technology for Purification of Micro-polluted Groundwater Containing Iron,Manganese and Ammonia Nitrogen

作　　者：郜玉楠[1] 傅金祥[1] 高国伟[2] 张树冬[2] 张亚峰[2] 高云鹤[2] 

机构地区：[1]沈阳建筑大学辽河流域水污染治理研究院,辽宁沈阳110168 [2]沈阳水务集团有限公司,辽宁沈阳110168

出　　处：《中国给水排水》2013年第21期11-14,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07424-002-003);辽宁省自然科学基金资助项目(201104326)

摘　　要：针对微污染地下水中铁、锰、氨氮浓度超标的问题，将已构建的5株具有同步去除铁、锰、氨氮效能的优势菌种应用于规模为1000 m^3／h的曝气／生物强化过滤系统中，通过进行菌种复配、富集培养、固定化试验对前期小试所建立的技术成果进行验证，并确定系统的最佳运行条件。针对试验水质，该工艺适宜的运行参数如下：启动期采用逐级增加滤速方式，稳定期滤速为4～5m／h，反冲洗周期为3～5d，反冲洗强度为12～15L／（m^2·S），曝气工艺的气水比为3～4，进水溶解氧应达到6.5～8.5mg／L。在此条件下，该工艺对铁、锰、氨氮都具有较好的去除效果。In order to simultaneously remove iron, manganese and ammonia nitrogen from micropolluted groundwater, five bacteria strains were applied in an aeration/bioaugmentation filter system with capacity of 1 000 m^3/h. The bench test results were confirmed by strain composition, cultivation and immobilization. The optimal operation conditions were determined as follows： the filtration rate gradually increased in the start-up period, the filtration rate was 4 to 5 m/h, the backwashing period was 3 to 5 d, the baekwashing intensity was 12 to 15 L/（m^2.s）, the gas-water ratio was 3 to 4 and the dissolved oxygen content was 6.5 to 8.5 mg/L. Under these conditions, iron, manganese and ammonia nitrogen were removed effectively.

关 键 词：微污染地下水 铁 锰 氨氮 优势菌种 生物增强技术 

分 类 号：X523[环境科学与工程—环境工程]