...
首页> 外文期刊>Journal of industrial and engineering chemistry >Modeling the kinetics of Cd(II) adsorption on Syzygium cumini L leaf powder in a fixed bed mini column
【24h】

Modeling the kinetics of Cd(II) adsorption on Syzygium cumini L leaf powder in a fixed bed mini column

机译:模拟固定床微型柱上Cy(II)在枯草Syzygium cumini L叶粉上的吸附动力学

获取原文
获取原文并翻译 | 示例
           

摘要

Syzygium cumini L leaf powder was used as a biosorbent for generating adsorption data in a fixed bed mini column. Effect of flow rate, initial Cd(II) concentration and bed height were the experimental parameters chosen to obtain breakthrough curves. The maximum uptake of Cd(II) in a fixed bed adsorption column was 29.08 mgg~(-1) at pH 5.5, initial Cd(II) concentration 100 mgL~(-1), bed height 5 cm and flow rate 40mLmin~(-1). Bohart-Adams, BDST, Thomas and Yoon-Nelson models were applied to the data for predicting breakthrough curves and to determine the characteristic parameters. Prominent and unique characteristics features of the respective models like service time (Hutchins BDST model), adsorption capacity (Thomas model) and time required for 50% breakthrough (Yoon-Nelson model) were determined. The utilization of column data in designing of a commercial column has been discussed. It was possible to desorb ~98% of Cd(II) using 0.05 N HCl solution in column.
机译:枯草Syzygium cumini L叶粉被用作生物吸附剂,用于在固定床微型色谱柱中产生吸附数据。流速,Cd(II)初始浓度和床高的影响是选择获得突破曲线的实验参数。在固定床吸附柱中,在pH 5.5,最大Cd(II)初始浓度100 mgL〜(-1),床高5 cm和流速40mLmin〜()下,Cd(II)的最大吸收量为29.08 mgg〜(-1)。 -1)。将Bohart-Adams,BDST,Thomas和Yoon-Nelson模型应用于数据,以预测突破曲线并确定特征参数。确定了各个模型的突出和独特特征,例如使用时间(Hutchins BDST模型),吸附量(Thomas模型)和50%突破所需的时间(Yoon-Nelson模型)。讨论了在商业色谱柱设计中色谱柱数据的利用。使用0.05 N HCl的柱子溶液可以解吸约98%的Cd(II)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号