壳聚糖- g -马来酸酐- g -甲基丙烯酸共聚物固定床柱吸附水中铅(II)的研究

Volume 5, Issue 4 Pub Date : 2020-07-30 DOI:10.46243/jst.2020.v5.i4.pp316-334

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引用次数: 2

摘要

在固定床柱上研究了壳聚糖-顺酐-甲基丙烯酸共聚物对铅(II)的吸附性能。采用Boharts和Adam模型、Thomas和Yoon模型和Nelson模型对不同条件下的连续吸附进行了分析。突破数据与Thomas和Yoon Nelson模型拟合良好，相关系数较高，r2为0.9835。壳聚糖-顺酐-甲基丙烯酸吸附剂在流速为1 ml /min、进口Pb金属离子浓度为100 ppm、床高为3 cm时的床容最高

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Fixed-Bed Column Adsorption Studies of Lead (II) From Aqueous Solution Using Chitosan -G-Maleic Anhydride-G-Methacrylic Acidcopolymer

The adsorption of Lead (II) from aqueous solution by chitosan-g-maleic anhydride-g-methacrylic acidcopolymer was investigated in fixed- bed column.The continuous adsorption varying the effect of flow rates, bed height and concentration and breakthrough curves was evaluated and it was also analyzed by dynamics models namely, Boharts and Adam, Thomas and Yoon and Nelson models at different conditions.The breakthrough data fitted well to Thomas and Yoon Nelson models with high correlation coefficient, R 2 is 0.9835. The highest bed capacity of chitosan-g-maleicanhydride-g-methacrylicacid adsorbent was obtained using 1 ml /min flow rate, 100 ppm inlet Pb metal ion concentration, and 3 cm bed height

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Volume 5, Issue 4

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