地下水生物除铁效果及其动力学研究  

Efficiency and kinetics of iron removal by biofilter in groundwater

作　　者：禹丽娥[1] 

机构地区：[1]长沙理工大学水利学院,湖南长沙410114

出　　处：《供水技术》2009年第3期19-21,共3页Water Technology

基　　金：湖南省科技支撑计划项目(2007SK4028)

摘　　要：采用生物滤柱进行了地下水除铁的试验研究。当原水中Fe2+的质量浓度为4.3mg/L,pH值为6.4～6.6,水温为23～25℃,DO为1.5 mg/L,滤速为8 m/h时,出水中Fe2+<0.1mg/L。通过灭菌试验得出,滤柱对铁的去除主要通过生物氧化完成,而非物理化学作用。通过分析不同高度滤层水中铁的含量研究了生物氧化除铁动力学规律,得出铁含量与空床接触时间之间的函数关系。The biological filter was used for iron removal in groundwater. The Fe^2＋ concentration in the effluent was less than 0. 1 mg/L when mass concentration of Fe^2＋ in raw water was 4.3 mg/L with pH of 6.4 - 6.6, temperature of 23 - 25℃, DO of 1.5 mg/L in raw water, and the filtration rate of 8 m/h. The sterilizing test indicated that iron removal was mainly dependent on biological oxidation, rather than physical and chemical effects. A kinetics model of biological removal of iron with the analysis of iron concentration in different depth of filter, and functional relation of iron concentration and empty bed contact time was obtained.

关 键 词：地下水 生物除铁 细菌 动力学 

分 类 号：TU991.265[建筑科学—市政工程]