臭氧催化氧化深度处理造纸废水的试验研究  

Advanced treatment paper-making wastewater by catalytic ozonation

作　　者：刘婉岑 宋堃铭 张玉芬 LIU Wancen;SONG Kunming;ZHANG Yufen(Goldwind Environmental Protection Co.,Ltd.,Beijing 100176,China)

机构地区：[1]金风环保有限公司,北京100176

出　　处：《工业水处理》2022年第1期154-157,共4页Industrial Water Treatment

摘　　要：广东东莞某一家造纸企业污水处理系统的生化池出水具有色度高、难降解的特点。采用臭氧催化氧化工艺深度处理该废水,探究了空速、臭氧投加量以及O_(3)、H_(2)O_(2)物质的量比对COD去除率的影响。通过试验优选出空速为7 h^(-1),臭氧投加量为70 g/t,O_(3)、H_(2)O_(2)物质的量比为0.5时,出水COD满足GB 18918-2002一级A的要求,为臭氧催化氧化在造纸废水中的应用提供技术支撑。The effluent of biochemical tank of the sewage treatment system had the characteristics of high chromaticity and refrac⁃tory,which was from of a paper⁃making company in Dongguan,Guangdong.The catalytic ozonation process was used for advanced treatment of paper⁃making wastewater.The effects of space velocity,ozone dosage and the molar ratio of ozone/hydrogen peroxide on the removal rate of COD were investigated.Results showed that the optimal conditions:space velocity was 7 h^(-1),the dosage of ozone was 70 g/t,and the molar ratio of ozone/hydrogen peroxide was 0.5.Under optimal conditions,the COD of the effluent reach Grade A of GB 18918-2002,providing technical support for the application of catalytic ozonation in paper⁃making wastewater.

关 键 词：臭氧催化氧化 臭氧/双氧水 造纸废水 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]