Biosorption of reactive dye from aqueous media using Saccharomyces cerevisiae biomass. Equilibrium and kinetic study

被引：18

作者：

Suteu, Daniela ^{[1
]}

Blaga, Alexandra Cristina ^{[1
]}

Diaconu, Mariana ^{[2
]}

Malutan, Teodor ^{[3
]}

机构：

[1] Gh Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Organ Biochem & Food Engn, Iasi 700050, Romania

[2] Gh Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Environm Engn & Management, Iasi 700050, Romania

[3] Gh Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Nat & Synthet Polymers, Iasi 700050, Romania

来源：

CENTRAL EUROPEAN JOURNAL OF CHEMISTRY | 2013年 / 11卷 / 12期

关键词：

Saccharomyces cerevisiae biomass; Reactive dye; Biosorption; Equilibrium; Aqueous medium; METHYLENE-BLUE ADSORPTION; DECOLORIZATION; SORPTION; REMOVAL;

D O I：

10.2478/s11532-013-0338-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The biosorption Brilliant Red HE-3B reactive dye by nonliving biomass, Saccharomyces cerevisiae, in batch procedure was investigated. Equilibrium experimental data were analyzed using Freundlich, Langmuir and Dubinin - Radushkevich isotherm models and obtained capacity about 104.167 mg g(-1) at 20A degrees C. The batch biosorption process followed the pseudo-second order kinetic model. The multi-linearity of the Weber-Morris plot suggests the presence of two main steps influencing the biosorption process: the intraparticle diffusion (pore diffusion), and the external mass transfer (film diffusion). The results obtained in batch experiments revealed that the biosorption of reactive dye by biomass is an endothermic physical-chemical process occurring mainly by electrostatic interaction between the positive charged surface of the biomass and the anionic dye molecules. The biosorption mechanism was confirmed by FT-IR spectroscopy and microscopy analysis.

引用

页码：2048 / 2057

页数：10

共 42 条

[31] USING OF INDUSTRIAL WASTE MATERIALS FOR TEXTILE WASTEWATER TREATMENT [J].