微波强化ClO2催化氧化处理活性艳黄染料废水
Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 5
Abstract
以γ-Al2O3为载体，采用浸渍-沉淀法制备了CuOn–La2O3/γ-Al2O3催化剂。探讨了ClO2浓度、微波辐照功率及辐照时间、催化剂用量、体系pH值、体系温度及不同工艺对活性黄染料废水去除效能的影响。结果证实了微波强化ClO2催化氧化法的高效性和可行性。研究表明：微波强化ClO2催化氧化法能够有效去除水中活性艳黄染料，缩短反应时间，减少催化剂用量，拓宽pH值使用范围。对于200 mg/L的染料废水，其处理的最佳工艺条件为: 微波辐照功率400 W，辐照时间1.5 min，催化剂CuOn–La2O3/γ-Al2O3加入量70 g/ L，ClO2 浓度80 mg/ L，体系pH值为7，在此工艺条件下，脱色率达92.24%。对比不同处理工艺，微波强化ClO2催化氧化法能够显著地提高水中活性艳黄染料的去除效果，为染料废水的处理提供了一种行之有效的新方法。
Authors and Affiliations
Chunyan JIAO, Peng WANG, Xiaoyi BI
Keywords
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