茜红染料废水光助氧化法降解脱色研究  

Study on the Photo-assisted Oxidation Degradation of Dyeing Wastewater

作　　者：张治宏[1] 王彩花[2] 王晓昌[2] 

机构地区：[1]西安工业学院材料与化工学院,西安710032 [2]西安建筑科技大学

出　　处：《工业安全与环保》2006年第2期30-31,共2页Industrial Safety and Environmental Protection

摘　　要：主要对光助氧化法处理印染废水进行了实验研究。探讨了单纯的紫外光光照时间、H2O2浓度、染料水溶液的初始pH值以及Fenton试剂中H2O2的浓度和Fe2+比值对CODcr去除率和脱色率的影响。结果表明,光助氧化法对茜红染料废水有比较好的处理效果,光照80 min,pH=3,H2O2浓度6 mmol/L,脱色率和CODcr去除率分别达到92.8%和84.4%,加入Fe2+并保持Fe2+∶H2O2=1∶5,尽管由于Fe2+及Fe3+的存在,脱色率下降为85.4%,而CODcr去除率升高到93.7%。Study on the photo- assisted oxidation of dyeing wastewater is conducted in this paper. Some parameters are discussed, inch as the time of UV, the pH value, the amount of 11202, and influences of the proportion of Fe^2＋ and H2O2 on removal rate of CODcr and color.The results show that this process is effective for the treatment of the dyeing wastewater, the color and CODcr removal rate can respectively reach 92.8 % and 84.4 % after sunlight of 80 mins, pH = 3, and H2O2 6 mmol/L;when Fenton is added and Fe^2＋ ： H2O2 = 1 ： 5, the color removal rate downed to 85.4% and CODcr upped to 93.7 %.

关 键 词：光助氧化 降解 色度 染料废水 

分 类 号：X788[环境科学与工程—环境工程] TQ432.2[化学工程]