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环境化学  2015 

Al0-O2体系降解活性黄3RS溶液

Keywords: Al0-O2体系,降解,活性黄3RS染料

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Abstract:

酸性条件下,采用Al0-O2体系对活性黄3RS染料溶液进行降解,考察了活性黄3RS的初始浓度,pH、Al0的浓度、温度、Fe2+浓度等因素对其降解率的影响.结果表明,在pH=2和Al0浓度为1g·L-1时,对50mg·L-1活性黄3RS的降解率最高,反应150min时最高可获得92%的降解率;降解后其COD值由126.35mg·L-1降至49.44mg·L-1;温度升高,活性黄3RS的降解率提高,其表观反应活化能为108.262kJ·mol-1;动力学分析表明该过程为一级反应,反应速率常数kobs=1.2×10-2s-1;当向体系中加入Fe2+时,其降解速率加快.

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