溶解氧对含氨氮地下水生物除铁除锰效果的影响  

Effects of dissolved oxygen in water on the removal of iron and manganese by biofilter for groudwater with ammonia nitrogen

作　　者：李灿波[1] 

机构地区：[1]北京工业大学建筑工程学院水质科学与水环境恢复工程北京市重点实验室,北京100024

出　　处：《供水技术》2009年第3期16-18,共3页Water Technology

摘　　要：采用生物滤柱进行了地下水除铁除锰效果的研究,通过检测滤柱不同滤层深度Mn2+、Fe2+、NH+4-N与DO浓度的变化,研究了各离子的去除效果与DO的关系,并对比了不同DO水平和不同滤速时离子的去除情况。结果表明,铁比锰和氨氮更优先被去除,滤速越低,溶解氧消耗越多。The effects of dissolved oxygen （DO） on iron and manganese removal by biofilter were investigated. The relationship between ion removal and DO was calculated through detecting the variation of Mn^2＋ , Fe^2＋ , NH4 - N and DO concentrations in different depth of the filter, and ion removal in different DO concentrations and different filtration rates were compared. The result showed that iron was removed superior to manganese and ammonia nitrogen, the lower the filtration rate was, the more DO it consumed.

关 键 词：溶解氧 除铁除锰 滤速 氨氮 

分 类 号：TU991.265[建筑科学—市政工程]