过氧化氢催化臭氧氧化-活性炭-砂滤联用深度处理微污染水

目的为了提高臭氧氧化能力，研究催化剂对臭氧氧化的影响，以及寻找催化剂H2O2的最佳投加量．方法运用H2O2催化臭氧氧化-活性炭-砂滤联用工艺深度处理浑河水，通过改变H2O2的投加量，分别对比了有机物、氨氮、浊度和色度的去除效果．结果表明当臭氧投加量为3mg／L，H2O2投加量为2mg／L时，可将C‰由原水的5．67mg／L降至1．74mg／L，去除率达到69．84％；UV254由原水的0．047cm^-1降至0．006cm^-1。去除率达87．23％；色度由原水的23．5度降至0．59度。去除率达97．49％；结论对于类似浑河水的微污染水采用H2O2催化臭氧氧化-活性炭-砂滤联用工艺深度处理是可行的。并能使有机物等污染物浓度大为降低．出水水质得以提高．

Study on Advanced Treatment of Drinking Water with Joint Process of Ozone Catalytic-Activated Carbon-Filtration

In order to improve the oxidization of ozone and analyse the effect of catalyst on ozone oxidization as well as the optimum dosage of catalyst,the joint process of ozone catalytic(H_2O_2/O_3)-activated carbon-filtration was used to treat the water of Hunhe River.The removal of organics,ammonia-nitrogen,turbidity and color were compared in terms of the different addition of H_2O_2.The result showed that when the dose of H_2O_2 added was 2?mg/L,the COD_(Mn) descended from 5.67?mg/L to 1.74?mg /L,the UV254 decreased from 0.047?cm~(-1) to 0.006?cm~(-1),and the color dropped from 23.5 to 0.59;the removal rate of CODMn,UV_(254) and color was 69.84%,87.23% and 97.49% respectively.Hence,it is feasible to use ozone catalytic(H_2O_2/O_3)-activated carbon-filtration process to treat the lightly-polluted water which is similar to that in the Hunhe River.The amount of pollutants such as organic matter was greatly reduced and the quality of the outlet water was greatly improved.