高铁锰氨氮伴生地下水生物深度净化的工程实践  

Practical engineering of advanced removal of high iron and manganese ammonia accompanying underground water

作　　者：李冬[1] 曾辉平[1] 张杰[1,2] 

机构地区：[1]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 [2]哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨150090

出　　处：《给水排水》2011年第9期11-16,共6页Water & Wastewater Engineering

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07424-005;2009ZX07424-002)

摘　　要：对高铁锰氨氮伴生的地下水采用传统接触氧化工艺处理时,水厂滤池出水锰严重超标,经模拟滤柱试验发现,滤层结构和溶解氧不足是高浓度Fe^(2+)、Mn^(2+)、NH_3—N同池生物净化失败的原因。根据滤柱试验结果,提出了强化曝气溶氧,无烟煤锰砂双层滤料一级生物过滤的工艺流程,实现了寒区高铁锰氨氮伴生的潜流地下水的同池深度净化。并用研究成果改造了哈尔滨市松北区前进水厂一期净水系统。出厂水总铁小于0.2 mg/L,锰小于0.05 mg/L,氨氮小于0.2 mg/L,满足国标要求,且长期高效、稳定运行,由此,创建了寒区高铁锰氨氮伴生地下水生物深度净化示范工程。The effluent manganese concentration was found excessive limitation seriously when the underground water accompanying by high iron and manganese ammonia was treated by traditional contact oxidation process. Filtration column experiments showed that layer structure and lack of dissolved oxygen were the reasons for failure of removal of iron, manganese and ammonia in single biofilter. According to the filtration column experiment results, the enhanced aeration and anthracite - manganese sand dual - media first - grade filter were brought forward, and the simulta neous advanced removal of the high iron and manganese accompanying underground water in cold region was realized. The research results were applied in the reconstruction of the first stage water processing system in Qianjin Water Treatment Plant in the Songbei District of Harbin City. The total iron concentration in effluent was below 0. 2 mg/L, manganese was below 0. 05 mg/L and ammonia was below 0. 2 mg/L, which met the national standards. The operation of the water treatment plant was highly- efficient and stable, which set up a demon stration project for the simultaneous advanced removal of the high iron and manganese accompanying underground water in cold region.

关 键 词：生物除铁除锰 氨氮 地下水 寒区 

分 类 号：TU991.2[建筑科学—市政工程]