催化臭氧氧化法深度处理焦化废水的研究  

Research on catalytic ozonation for advanced treatment of coking wastewater

作　　者：刘璞[1] 王丽娜[1] 张垒[1] 刘尚超[1] 付本全[1] 王凯军[2] 刘霞[2] 

机构地区：[1]武钢研究院,湖北武汉430080 [2]武汉平煤武钢联合焦化有限责任公司,湖北武汉430083

出　　处：《武钢技术》2017年第2期43-45,共3页Wisco Technology

摘　　要：采用自制的γ-Al_2O_3基催化剂进行催化臭氧氧化焦化废水的试验,当铁锰铜镍质量比为1∶1∶1∶1,催化剂处理效果最佳。通过单因素试验分析了一定条件下的反应时间、催化剂用量、废水pH值、反应温度对废水处理效果的影响,确定催化臭氧氧化最佳工艺参数为:反应时间为50min,臭氧产量为10g/h,催化剂投加量为5g/L,废水pH值为9,反应温度为60℃。经催化臭氧氧化工艺处理后,焦化废水COD、NH_3-N、色度的去除率分别为54.67%,77%,90%。各项指标达到炼焦化学工业污染物排放标准。Experiments on catalytic ozonation for coking wastewater by self-made γ-Al2O3 supported catalyst were studied.When mass ratio between Fe,Mn,Cu and Ni was 1：1：1：1,the treatment efficiency of catalyst was the best.Under certain conditions,influences of reaction time,catalyst dosage,pH value of wastewater and reaction temperature on wastewater treatment efficiency were investigated by single-factor experiments.Optimal technical parameters for catalytic ozonation process were determined as follows：reaction time is 50 min,ozone output is 10g/h,catalyst dosage is 5g/L,pH value is 9,reaction temperature is 60℃.Through catalytic ozonation treatment,removing ratio of COD,ammonia nitrogen and chroma of coking wastewater were 54.67 %,77 %and 90 %respectively.The indexes reached emission standard of pollutants from coking chemical industry.

关 键 词：焦化废水 臭氧氧化 催化剂 

分 类 号：X703.1[环境科学与工程—环境工程]