臭氧-生物活性炭-砂滤组合工艺运行效果分析  

Analysis of Operation Effect of Combined Processes of Ozone-Biological Activated Carbon-Sand Filtration

作　　者：刘建广[1] 李芳[1] 李世俊 王逸群[1] 刘海勇[1] 

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101 [2]济南水务集团有限公司,山东济南250012

出　　处：《净水技术》2017年第8期72-79,共8页Water Purification Technology

基　　金：国家"水体污染与控制"重大专项(2012ZX07404-003);国家自然科学基金(51278285)

摘　　要：介绍某水厂采用"臭氧-生物活性炭-砂滤"深度处理组合工艺处理引黄水库水,考察了不同进水浑浊度对组合工艺长期运行效果的影响,同时对组合工艺各单元的有机物种类及分子量分布的变化进行了分析。长期运行结果表明:(1)组合工艺对不同水质条件下的有机物指标有较高的去除效果,较高的温度有利于水中有机污染物的去除。(2)臭氧的主要作用在于将大分子量的有机物氧化为小分子量有机物,故臭氧生物活性炭工艺对COD_(Mn)2、UV_(254)和DOC有良好的去除作用。整个工艺对氨氮的去除率在40%~50%,对亚硝酸盐氮的去除率在80%~90%。(3)臭氧活性炭工艺对可生物降解有机物有较好的去除效果,砂滤工艺主要去除D0CD&A。(4)上向流BAC柱活性炭颗粒间空隙率较大,降低了对浊度的机械截留,其后置的砂滤池可起到稳定出水浊度,保证出水微生物安全性的作用。Combined processes of ＂ozone -biological activated carbon-sand filtration＂ applied in a WTP with reservoir raw water of Yellow River is introduced. And the effect of different influent turbidity on the long term operation of the combined process are investigated. At the same time, changes of organic species and molecular weight distribution of each unit of the combined process are analyzed. Long term operation results show as follows ： （ 1 ） Combination process has high removal efficiency of organic matter indexes under different water quality conditions. Higher temperature is conducive to the removal of organic pollutants in water. （2） The main effect of ozone is the oxidation of organic compounds with large molecular weight to small molecular weight organic compounds. The removal rate of ammonia nitrogen in the whole process is between 40% ~ 50%, the removal rate of nitrite nitrogen is between 80% - 90%. （3） Ozone activated carbon process has a good effect on the removal of biodegradable organic compounds. Sand filtration process removes DOCD ＆ A mainly. （4） The upper flow BAC activated carbon particles column with a larger porosity gives low removal efficiency of turbidity, the rear sand filter can play a stable effluent turbidity to ensure the safety of the role of water effluent.

关 键 词：饮用水 臭氧 生物活性炭 砂滤 组合工艺 深度处理 

分 类 号：TU991.2[建筑科学—市政工程]