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环境化学  2015 

臭氧氧化印染废水生化出水的生化降解特性

Keywords: 印染废水生化出水,臭氧氧化,生化可降解溶解性有机碳,三维荧光光谱

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Abstract:

测定了不同比臭氧消耗量条件下,印染废水生化出水中生化可降解溶解性有机碳(BDOC)在28d内的变化过程,并对接种培养前后的三维荧光光谱进行了分析.结果表明,臭氧氧化能有效降低印染废水生化出水的色度和芳香度,明显提高可生化性.在比臭氧消耗量2.7mg·mg-1条件下,预计臭氧氧化和生物滤池联用技术对DOC的去除率约为54%.另外,亲水性有机物对BDOC的贡献率与比臭氧消耗量呈正比关系.类腐殖和类色氨酸物质的荧光强度在一定程度上反映了生化难降解有机物的含量.

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