论文部分内容阅读
针对北京密云水库水的水质特征,分别进行了实验室预氧化实验和现场中试研究。室内预氧化实验结果表明,预臭氧化对水中UV254的去除率明显高于高锰酸钾和次氯酸钠,并且还能有效降低原水中的THMFP。在1.0 mg/L臭氧剂量时,嗅味物质MIB的浓度从98.0 ng/L降为73.0 ng/L,去除率为26.0%。中试试验结果表明,预臭氧化工艺与常规工艺的THMFP的去除率分别是25.6%和14.9%,预臭氧化能大幅度杀灭大肠杆菌,去除率高达94%,并能够显著降低砂滤出水颗粒数,从而减少砂滤出水微生物、病原体出现的几率,对改善水质有积极影响。
According to the water quality characteristics of Beijing Miyun reservoir water, laboratory pre-oxidation experiments and field pilot studies were carried out respectively. The experimental results of indoor pre-oxidation show that the pre-ozonation has a significantly higher UV254 removal rate than potassium permanganate and sodium hypochlorite, and can effectively reduce THMFP in raw water. At 1.0 mg / L ozone dose, the MIB concentration of odorant was reduced from 98.0 ng / L to 73.0 ng / L with a removal rate of 26.0%. The results of the pilot test showed that the THMFP removal rates of the pre-ozonization process and the conventional process were 25.6% and 14.9%, respectively. The pre-ozonization can greatly kill E. coli with a removal rate as high as 94% and can significantly reduce the sand filtration effluent The number of particles, thus reducing the chances of sand filtration of effluent microorganisms and the presence of pathogens, has a positive impact on improving water quality.