紫外-催化湿式过氧化氢氧化煤化工废水膜浓缩液  

Treatment of membrane concentrate of coal chemical wastewater by UV-catalytic wet hydrogen peroxide oxidation

作　　者：张永建 刘志英 刘璧铭 陆曦 滕月 程兴 徐炎华 Zhang Yongjian;Liu Zhiying;Liu Biming;Lu Xi;Teng Yue;Cheng Xing;Xu Yanhua(College of Environmental Science and Engineering,Nanjing Tech University,Nanjing 211800,China)

机构地区：[1]南京工业大学环境科学与工程学院

出　　处：《工业水处理》2019年第11期41-44,共4页Industrial Water Treatment

基　　金：国家十三五重点研发课题(2017YFB0602500);江苏省高校自然科学研究计划(16KJA610002)

摘　　要：采用溶胶-凝胶法制备LaCoO3钙钛矿型催化剂用于紫外-催化湿式过氧化氢氧化煤化工废水膜浓缩液,表征了催化剂的结构,并考察了各因素对催化氧化效果的影响。结果表明,当H2O2投加量1.2 mL/L,催化剂投加量0.8 g/L,反应温度120℃,反应压强0.5 MPa,pH=3,反应时间60 min时,COD的去除率为89.7%,TOC的去除率为84.6%,UV254的去除率为97.2%。The LaCoO3 perovskite catalyst was prepared through the sol-gel method and characterized in this study.Then it was employed for the UV-catalytic wet hydrogen peroxide oxidation of the membrane concentrate of coal chemical wastewater.The effects of various factors on the oxidation efficiency were investigated by single-factor experiments.When the dosage of H2O2 was 1.2 mL/L,the catalyst was 1.8 g/L,the reaction temperature was 120℃,the reaction pressure was 0.5 MPa,pH was 3,and the reaction time was 60 min,the removal rates of COD,TOC and UV254 reached 89.7%,84.6%and 97.2%,respectively.

关 键 词：紫外-催化湿式过氧化氢氧化 LACOO3 膜浓缩液 

分 类 号：X703[环境科学与工程—环境工程]