Fixed-Bed and Batch Adsorption of Pharmaceuticals from Aqueous Solutions on Ionic Liquid-Modified Montmorillonite

被引：24
|
作者：
Lawal, Isiaka A. [1 ]
Moodley, Brenda [1 ]
机构：
[1] Univ KwaZulu Natal, Sch Chem & Phys, Coll Agr Engn & Sci, P Bag X45001,Westville Campus, ZA-4000 Durban, South Africa
来源：
CHEMICAL ENGINEERING & TECHNOLOGY | 2018年 / 41卷 / 05期
关键词：
Batch adsorption; Column adsorption; Ionic liquids; Montmorillonite; Pharmaceuticals; Water remediation; ANTIBIOTIC NALIDIXIC-ACID; CARBON NANOTUBES; TETRACYCLINE ANTIBIOTICS; ACTIVATED-SLUDGE; PALM SHELL; PACKED-BED; REMOVAL; SORPTION; SULFAMETHOXAZOLE; WATER;
D O I：
10.1002/ceat.201700107
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Batch and column adsorption of four pharmaceuticals, namely, tetracycline (TC), sulfamethoxazole (SMZ), nalidixic acid (NAD), and chloramphenicol (CHL) on ionic liquid modified montmorillonite (Mt-IL) was evaluated. The effects of variation in pH and contact time were analyzed and the data were fitted to kinetics and isotherm models. The equilibrium experimental data were best explained by the Freundlich model. A pseudo second-order kinetic model described all pharmaceuticals adsorbed on Mt-IL. In column studies, the exchange zone depth, adsorption capacity, the required time for the pharmaceuticals to move through the height of the adsorbent in the column, and adsorption rates were investigated by the Yoon-Nelson and the Thomas and Adams-Bohart models.
引用
收藏
页码：983 / 993
页数：11
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