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臭氧氧化及其他强化技术协同降解聚乙烯醇

Keywords: 聚乙烯醇,臭氧氧化,协同降解,羟基自由基

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Abstract:

采用O3氧化降解水中聚乙烯醇(PVA),考察了O3氧化的影响因素及与其他强化技术协同下的降解效果。结果表明,经12min处理,O3/超声波、O3/紫外光协同作用下PVA降解率较直接O3氧化的63.2%有显著提高,表现出了良好的协同效应。通过比较酸性条件下添加不同量Fenton试剂的作用效果可知,·OH的氧化作用是PVA降解的重要原因。

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