O3预氧化处理微污染黄河水源水研究

[目的]为净化微污染黄河水源水寻求一种较好的工艺。[方法]研究不同浓度O3投加量和反应时间对微污染黄河水源水中的主要污染物质如色度、CODMn、UV254、NO2-N和NH4＋-N的去除效果。[结果]色度明显下降,CODMn降低了10%,UV254下降了58.9%,NO2--N降低了42.69%,NH4＋-N略有增加。处理该微污染黄河水源水,最佳预氧化时间为2 min,臭氧投加量为2.7 mg/L。[结论]O3预氧化技术对黄河微污染水源水有良好的处理效果。

Research on Treatment of Micro-polluted Yellow River Raw Water by O_3

[Objective] The aim of the study was to seek an efficient treatment process of micro-polluted raw drinking water.[Method] The impacts of pollutant such as chromaticity、CODMn、UV254、NO2-N and NH4+-N under the conditions of different ozone dosages and different ozone adding time was analyzed.[Result] Under this Process,The reductions of CODMn and UV254 were respectively 10% and 58%.And the amount of pollutants such as organic materials was greatly reduced and the drinking water quality was greatly improved.The optimum reaction time was 2 min;the best O3 dose was 2.7 mg/L.[Conclusion] The process of ozone pre-oxidation was found to be efficient in treatment of the micro-polluted source water from the Yellow River.