TiO_2/H_2O_2光催化处理OCC造纸废水的探讨  

Discussion on TiO_2/H_2O_2 Photo-Catalytic Degradation of OCC Paper Effluent

作　　者：梁黎黎 马晓娜[2] 杨汝男[2] 

机构地区：[1]大连市金州新区环境保护监测中心,辽宁大连116600 [2]大连工业大学,辽宁大连116034

出　　处：《黑龙江造纸》2011年第2期13-15,共3页Heilongjiang Pulp & Paper

摘　　要：以中压汞灯作光源、TiO2为催化剂,进行光催化降解OCC造纸废水的试验研究。考察了TiO2用量、H2O2用量、光照时间、pH值四个因素对降解效果的影响。试验表明:TiO2用量2.5g/L、H2O2用量(以体积分数计)为0.3%,CaO调节废水初始pH值为8的条件下,于25℃汞灯光照4h后,CODCr的去除率和脱色率分别达到了92.2%和89.1%。即采用TiO2/H2O2光催化处理OCC造纸废水是有效和可行的。Study was conducted on degradation of Poplar OCC paper effluent.The degration was carried by photocatalytic oxidation with middle pressure mercury pump as light source and TiO2 as catalyst.The effect of operating conditions,including TiO2 and H2O2 dosage,roasted time,pH on the removal rates of CODCr and chromaticity was studied and the process parameters were optimized.The study showed that the removal rate of CODCr and chromat icity was 92.2% and 89.1% respectively when the amount of TiO2 was 2.5g/L,the amount of H2O2 was 0.3%,initial pH value was 8 by CaO,mercury pump radiation for 4h.The photocatalytic degradation of OCC paper effluent proved to be feasible.

关 键 词：光催化 二氧化钛 过氧化氢 OCC造纸废水 

分 类 号：X703[环境科学与工程—环境工程]