作　　者： ; ; ; (姚志强）;

机构地区： 湖南大学土木工程学院

出　　处： 《中国给水排水》 2003年第12期11-14,共4页

摘　　要： 　通过小试研究了DO、pH值和滤柱关闭等因素对地下水生物除锰的影响,探讨了氧化还原电位(ORP)与生物除锰的关系。结果表明,当出水DO从0.9mg/L增加到5.7mg/L,生物滤柱出水含锰量均小于0.05mg/L,且没有明显变化;当出水pH值为5～8.5时,出水含锰量<0.1mg/L,但当pH<5时,出水含锰量随进水pH值的降低而急剧增加;当ORP为430～720mV时,生物滤池具有良好的除锰效果;滤柱关闭28d对生物除锰效果的影响短暂、轻微。 By means of bench-scale test, study was made on the effect of factors such as )DO), pH and filter shutdown on biological manganese removal from ground water, and an investigation was also carried out on the relationship between oxidation reduction potential (ORP) and biological manganese removal. The result showed that when the effluent )DO) is increased from 0.9 mg/L to 5.7 mg/L, the manganese content in filter effluent is < 0.05 mg/L and has no remarkable variation. When effluent pH is 5～8.5, the effluent manganese is < 0.1 mg/L. When pH is < 5, the effluent manganese will be increased sharply with the decrease of influent pH. When )ORP) is 430～720 mV, the biofilter has good manganese removal efficiency. If the filter shuts down for 28 days, it has transient and less effect on biological manganese removal efficiency.)

关 键 词： 地下水 生物除锰 值 滤柱关闭 氧化还原电位 饮用水处理

领　　域： [建筑科学]