二氧化氯催化氧化降解铬黑T试验研究
Water & Wastewater Engineering(2012)
Abstract
在常温常压下,对Fe2O3/γ—A12O3+H2O2和ClO2+TiO2两种催化氧化体系处理铬黑T废水的效果进行了分析。试验结果表明,处理甲基橙废水效果较好的Fe2O3/γ—Al2O3+H2O2组合对铬黑T的降解效果非常有限,而ClO2+TiO2组合的处理效果较好:以500 mg/L的铬黑T溶液为模拟废水,当pH为4,C102投加量为200 mg/L,TiO2投加量为500 mg/L,反应时间为90 min时,脱色率达89.96%,CODCr的去除率可达45.36%。
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Key words
Chlorine dioxide,Eriochrome black T,Catalytic oxidation,Normal temperature and pressure,Azo dye
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