摘要
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3 mg/L,H2O2投加量为2 mg/L时,可将CODMn由原水的5.67 mg/L降至1.74 mg/L,去除率达到69.84%;UV254由原水的0.047cm-1降至0.006 cm-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.
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 （H2O2/O3） - 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 H2O2. The result showed that when the dose of H2O2 added was 2 rag/L, the CODMn 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, UV254 and color was 69.84 %, 87.23 % and 97.49 % respectively. Hence, it is feasible to use ozone catalytic （H2O2/O3） - 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.
出处
《沈阳建筑大学学报（自然科学版）》
EI
CAS
2006年第5期791-794,共4页
Journal of Shenyang Jianzhu University：Natural Science
基金
辽宁省自然科学基金(20022007)
关键词
臭氧
H2O2
催化氧化
活性炭
微污染水
ozone
H2O2
catalytic ozonation
activated carbon
lightly - polluted water
