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泥区废液回流对污水处理系统出水水质特性的影响

Keywords: 泥区废液,回流,SBR污水处理系统,残余有机物,水质特性

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Abstract:

研究了泥区废液回流对污水处理系统出水水质特性的影响,为污水再生与安全回用提供参考。通过模拟泥区废液回流SBR污水处理系统,分别对不同回流比出水的COD、UV254、表观分子量分布以及三维荧光光谱特性进行检测分析。研究显示:虽然泥区废液回流污水处理系统一般不会引起处理系统出水COD的显著变化,但出水残留有机物的芳香性和不饱和度增强,大分子物质和腐殖质类污染物所占比例增加,致使出水水质呈现复杂化趋势。因此,泥区废液回流不利于污水的资源化和安全健康回用。

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