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活性炭三维电极法处理超高盐榨菜腌制废水

Keywords: 三维电极,榨菜腌制废水,活性炭,COD,磷酸盐

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Abstract:

将粒状活性炭作为三维电极的粒子电极处理超高盐榨菜腌制废水。采用静态实验,对比了二维电极与三维电极对该废水COD和磷酸盐的去除效果,考察了三维电极条件下极板间距、活性炭填充量、电解时间、电解电流及初始pH等对该废水COD和磷酸盐去除率的影响。结果表明:三维电极对超高盐榨菜腌制废水COD和磷酸盐的去除率明显高于二维电极;在原水pH(4.3~5.0),废水体积600mL,电流8A,活性炭填充量250g,极板间距6.5cm,电解时间150min时,处理效果良好,COD和磷酸盐去除率分别为76.47%和97.81%。由波长扫描图可初步认为部分有机物直接被氧化为二氧化碳。

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