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寒冷地区地表水水质具有低温低浊及有机微污染的水质特点,该特点成为提高此类水源水净化效能的瓶颈,传统的常规处理工艺难以适应。以寒冷地区有机微污染的地表水为研究对象,采用臭氧预氧化强化传统处理工艺,使出水符合《生活饮用水卫生标准》(GB 5749-2006)的要求。研究结果显示:在低温低浊条件下,臭氧预氧化能有效去除浊度、COD_(Mn)、UV_(245)、TOC,当臭氧投加量为1.0mg/L时,系统对浊度、COD_(Mn)、UV_(254)及TOC的去除率达到最大,分别为97.76%、50.53%、67.92%及53.25%。
The surface water quality in cold areas has the characteristics of low temperature and turbidity and organic micro-pollution. This feature has become a bottleneck to improve the purification efficiency of such water sources. Conventional conventional treatment processes are difficult to adapt. Taking the organic micro-polluted surface water in the cold area as the research object, the ozone pre-oxidation is used to strengthen the traditional treatment process so that the effluent meets the requirements of the standard of sanitary drinking water (GB 5749-2006). The results showed that under the conditions of low temperature and low turbidity, the pre-oxidation of ozone could effectively remove the turbidity, COD Mn, UV 245 and TOC. When the ozone dosage was 1.0 mg / L, (Mn), UV 254 and TOC were 97.76%, 50.53%, 67.92% and 53.25%, respectively.