铝锆柱撑蒙脱石处理Cr(Ⅵ)废水的应用研究

来源 :福州大学学报 | 被引量 : 0次 | 上传用户:loakl
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比较了膨润土原土及铝锆柱撑蒙脱石处理Cr(Ⅵ)废水的性能, 探讨了蒙脱石用量、 Cr(Ⅵ)废水浓度、 pH值等因素对膨润土吸附Cr(Ⅵ)实验的影响. 结果表明: 铝锆柱撑蒙脱石对Cr(Ⅵ)的吸附效果比原土有较大提高; Cr(Ⅵ)废水的pH值、膨润土用量对Cr(Ⅵ)吸附效率影响较大. 当pH=2, 柱撑膨润土用量为6g*L-1, 对浓度为50mg*L-1 Cr(Ⅵ)吸附率几乎达100%. 铝锆柱撑蒙脱石应用于化工厂的铬渣浸出液中Cr(Ⅵ)的吸附效果显著. 铝锆柱撑蒙脱石对Cr(Ⅵ)的吸附包括表面物理吸附与层间离子化学吸附.
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