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十六烷基三甲基溴化铵改性沸石对水中Cr(Ⅵ)的吸附去除率

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Abstract:

以十六烷基三甲基溴化铵改性沸石为吸附材料,采用搅拌吸附方法研究了其对废水中Cr(Ⅵ)的吸附去除效果,并利用X射线衍射和红外光谱分析了其吸附特征。结果表明在改性沸石粒度(–0.25+0.15)mm、用量30g/L、溶液初始pH=6,在25℃搅拌吸附30min,水中Cr(Ⅵ)的吸附去除率达到91%以上。改性沸石对水中Cr(Ⅵ)的吸附可用Langmuir吸附等温线描述,每100g改性沸石对Cr(Ⅵ)的饱和吸附量为26.53mg。

References

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