ASSESSMENT OF KINETICS, THERMODYNAMICS AND EQUILIBRIUM PARAMETERS OF CR(VI) BIOSORPTION ONTO Pinus brutia TEN

被引：27

作者：

Ozdes, Duygu ^{[1
]}

Gundogdu, Ali ^{[2
]}

Kemer, Baris ^{[3
]}

Duran, Celal ^{[3
]}

Kucuk, Murat ^{[3
]}

Soylak, Mustafa ^{[4
]}

机构：

[1] Gumushane Univ, Gumushane Vocat Sch, TR-29100 Gumushane, Turkey

[2] Gumushane Univ, Fac Engn, Dept Food Engn, TR-29100 Gumushane, Turkey

[3] Karadeniz Tech Univ, Dept Chem, Fac Sci, TR-61080 Trabzon, Turkey

[4] Erciyes Univ, Fac Sci, Dept Chem, TR-38039 Kayseri, Turkey

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2014年 / 92卷 / 01期

关键词：

biosorption; removal; pine bark; chromium; equilibrium; AQUEOUS-SOLUTIONS; ACTIVATED CARBON; HEXAVALENT CHROMIUM; WASTE-WATER; ADSORPTION; REMOVAL; SORPTION; SURFACE; IONS; REDUCTION;

D O I：

10.1002/cjce.21820

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The aim of the present study was to investigate the sorption potential of pine bark (Pinus brutia Ten.) for removal of Cr(VI) ions from aqueous solutions. The biosorption characteristics of Cr(VI) ions onto bark biomass were examined with respect to the changes in initial pH of the solution, contact time, initial Cr(VI) and bark concentration, bark particle size, temperature, etc. The biosorption isotherms were described by means of Langmuir and Freundlich models and the biosorption kinetics were analysed using pseudo-first-order, pseudo-second-order and intraparticle diffusion models. The thermodynamic parameters proved that the process was feasible, spontaneous and endothermic in nature.

引用

页码：139 / 147

页数：9

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