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考察了磁性离子交换树脂(MIEX)预处理/常规处理/活性炭吸附组合工艺对湖泊源水中CODMn、THMs、浊度、藻类及Br-的去除效果。结果表明:在常规处理工艺前增加MIEX预处理后,对CODMn的去除率提高了32%,对藻类的去除率提高了9%,并可节约混凝剂投量约40%;MIEX预处理/常规处理/活性炭吸附联用工艺对CODMn的去除率接近90%,使三卤甲烷含量降低了约90%,可作为生产饮用水和直饮水的优选方案之一;MIEX能有效去除水中的溴离子,但对其去除率会随通水倍数的增加而下降,实际应用中通水倍数取800较适宜。
The removal efficiency of CODMn, THMs, turbidity, algae and Br-in lake source water by MIEX pretreatment / conventional treatment / activated carbon adsorption combined process was investigated. The results showed that the removal rate of CODMn increased 32%, the removal rate of algae increased 9% and the coagulant dosage saved about 40% after the pretreatment of MIEX pretreatment. The MIEX pretreatment / Conventional treatment / activated carbon adsorption combined CODMn removal rate of nearly 90%, trihalomethanes reduced by about 90%, as drinking water and drinking water can be used as a preferred solution; MIEX can effectively remove bromide ions in water , But its removal rate will decrease with the increase of the water multiple, the practical application of water multiple of 800 is more appropriate.