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磷酸活化-微波热解法制备污泥吸附剂

Keywords: 磷酸活化-微波热解法,污泥吸附剂,制备,工艺条件

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Abstract:

以污泥吸附剂的碘值和其对铬的吸附去除效果为考察指标,对制备污泥吸附剂的各种影响因素进行全面考察和分析。结果表明,其最佳制备工艺条件为微波功率550W,微波辐照时间330s,磷酸浓度为40%及磷酸与污泥原料的液固比为2:1,空气氛围中制备的吸附剂SAA的性能要稍优于氮气氛围中制备的吸附剂SAN,但前者的得率稍低于后者,总体来讲,两者相差不大。在实际应用中可简化制备工艺,无需通入保护气体。

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