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低温低浊微污染水由于其水质的特殊性,一直是饮用水处理中面临的难题。以天津某水厂水源水为试验水质,在前期直接过滤试验研究基础上,采用高锰酸钾、臭氧为氧化剂进行预氧化以强化直接过滤处理低温低浊水的效果。结果表明,2种预氧化技术均能不同程度提高对水中有机污染物的去除效率,其中臭氧预氧化对水中有机微污染物去除效果提升较大,对UV254和CODMn的去除率均能达到57%,较单独直接过滤处理分别提高了42%和40%,比高锰酸钾预氧化工艺提高了32%和19%;臭氧预氧化-直接过滤工艺更适合于对该种水质的处理。
Low temperature and turbidity Micro-polluted water has always been a challenge in drinking water treatment due to the particularity of its water quality. Taking water source water of a water plant in Tianjin as test water quality, pre-oxidation was conducted using potassium permanganate and ozone as oxidant to enhance the effect of direct filtration treatment of low temperature and low turbidity water on the basis of direct filtration test research in the early stage. The results showed that the two kinds of pre-oxidation technology can all improve the removal efficiency of organic pollutants in water to some extent. Among them, the pre-oxidation of ozone enhanced the removal efficiency of organic micro-pollutants in water, and the removal rates of UV254 and CODMn reached 57% , Which is 42% and 40% higher than the direct filtration treatment alone, which is 32% and 19% higher than the potassium permanganate pre-oxidation process. The ozone pre-oxidation-direct filtration process is more suitable for the treatment of this kind of water quality.