锰在水库中的分布,对饮用水质的影响及去除对策

水库中的锰主要分布在库区底层水中，锰超标给饮用水质和供水设施带来不利影响。通过泄洪可以大大降低水库中的锰含量。常规的水处理工艺，经预氯化，并投加石灰水，至少能将原水中的锰由０．７８ｍｇ／ｌ降至０．１０ｍｇ／ｌ的限值内，另外，烧杯实验证实了高锰酸钾氧化对降低原水锰含量非常有效。

Distribution of Manganese in Reservoir and Its Influence on Drinking Water Quality and Counter-measures

The Manganese is mainly distrbuted in the lower layer water in the reservoir.The oversupply of Manganese exerts unfavorable influence on drinking water and water supply facilities.By releasing the floodwater,the content of Manganese in the reservoir can be greatly decreased.Regard to the conventional water treatment,the Manganese can be,at least,reduced from 0 78mg/L to 0 1mg/L through the addition of pre-chlorination and lime water in the water.As well,the beaker test has confirmed that the oxidation of potassium permanganate in very effective for the removal of Manganese in the water.