Multi-component adsorption of copper, nickel and zinc from aqueous solutions onto activated carbon prepared from date stones

被引：62

作者：

Bouhamed, F. ^{[1
]}

Elouear, Z. ^{[1
]}

Bouzid, J. ^{[1
]}

Ouddane, B. ^{[2
]}

机构：

[1] Nieurs Sfax, Lab Eau Energie & Environm, Ecole Natl Ingenieurs Sfax, BPW 3038, Sfax, Tunisia

[2] Univ Sci & Technol Lille, Equipe Chim Analyt & Marine, UMR CNRS Geosyst Lille1 8157, Bat C8, F-59655 Villeneuve Dascq, France

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2016年 / 23卷 / 16期

关键词：

Competitive adsorption; Activated carbon; Wastewater; Heavy metals; COMPETITIVE ADSORPTION; METAL-IONS; NI II; CHITOSAN; REMOVAL; CU(II); PB(II); THERMODYNAMICS; BIOSORPTION; ZEOLITES;

D O I：

10.1007/s11356-015-4400-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The removal of Cu2+, Ni2+, and Zn2+ ions from their multi-component aqueous mixture by sorption on activated carbon prepared from date stones was investigated. In the batch tests, experimental parameters were studied, including solution pH, contact time, initial metal ions concentration, and temperature. Adsorption efficiency of the heavy metals was pH-dependent and the maximum adsorption was found to occur at around 5.5 for Cu, Zn, and Ni. The maximum sorption capacities calculated by applying the Langmuir isotherm were 18.68 mg/g for Cu, 16.12 mg/g for Ni, and 12.19 mg/g for Zn. The competitive adsorption studies showed that the adsorption affinity order of the three heavy metals was Cu2+ > Ni2+ > Zn2+. The test results using real wastewater indicated that the prepared activated carbon could be used as a cheap adsorbent for the removal of heavy metals in aqueous solutions.

引用

页码：15801 / 15806

页数：6

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