Application of Debye–Huckel and Bronsted-Bjerrum theory to mass transfer rate in supported liquid membrane; effect of ionic strength on separation factor, an analysis through case studies

IF 1.5 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Geosystem Engineering Pub Date : 2022-09-26 DOI:10.1080/12269328.2022.2127425

B. Swain, K. Sarangi, Jay Ryang Park, C. Lee

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Abstract

ABSTRACT The Debye–Huckel and Bronsted-Bjerrum theory has been applied to supported liquid membrane process to understand the effect of ionic strength on separation factor. The effect of ionic strength due to different salts and their concentration on the separation factor of Cu(II) and Zn(II) by supported liquid membrane using Di-2 ethyl-hexyl phosphoric acid (D2EHPA) as a mobile carrier has been studied. For those studies, different salts, i.e., NaCl, NaNO3, NaClO3, Na2SO4, and CH3COONa, have been used. A mathematical model for the dependency of separation factor of Cu(II) and Zn(II) on ionic strength considering Debye–Huckel theory and Bronsted–Bjerrum theory has been developed. Experiments were carried out using a batch-type permeator of micro-porous polypropylene thin sheet as the solid support for the liquid membrane in the presence of different ionic strength of anions. The calculated separation factor is well agreed with the obtained results within 95% confidence interval.

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德拜-哈克尔和布理论在支撑液膜传质速率研究中的应用；离子强度对分离因子的影响&基于实例分析

摘要将Debye–Huckel和Bronsted-Bjerrum理论应用于支撑液膜过程，以了解离子强度对分离因子的影响。以二-乙基己基磷酸（D2EHPA）为流动载体，研究了不同盐的离子强度及其浓度对支撑液膜分离Cu（II）和Zn（II）因子的影响。对于这些研究，已经使用了不同的盐，即NaCl、NaNO3、NaClO3、Na2SO4和CH3COONa。考虑Debye–Huckel理论和Bronsted–Bjerrum理论，建立了Cu（II）和Zn（II）分离因子对离子强度依赖性的数学模型。在存在不同离子强度的阴离子的情况下，使用微孔聚丙烯薄片的间歇式渗透器作为液膜的固体载体进行实验。在95%置信区间内，计算的分离因子与获得的结果非常一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geosystem Engineering GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

2.70

自引率

0.00%

发文量