Document Detail


Assessment of the biosorption characteristics of a macro-fungus for the decolorization of Acid Red 44 (AR44) dye.
MedLine Citation:
PMID:  19631464     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study focuses on the possible use of macro-fungus Agaricus bisporus to remove Acid Red 44 dye from aqueous solutions. Batch equilibrium studies were carried out as a function of pH, biomass amount, contact time and temperature to determine the decolorization efficiency of biosorbent. The highest dye removal yield was achieved at pH 2.0. Equilibrium occurred within about 30 min. Biosorption data were successfully described by Langmuir isotherm model and the pseudo-second-order kinetic model. The maximum monolayer biosorption capacity of biosorbent material was found as 1.19 x 10(-4) mol g(-1). Thermodynamic parameters indicated that the biosorption of Acid Red 44 onto fungal biomass was spontaneous and endothermic in nature. Fourier transform infrared spectroscopy and scanning electron microscopy were used for the characterization of possible dye-biosorbent interaction and surface structure of biosorbent, respectively. Finally the proposed biosorbent was successfully used for the decolorization of Acid Red 44 in synthetic wastewater conditions.
Authors:
Tamer Akar; Ilknur Tosun; Zerrin Kaynak; Emine Kavas; Gonul Incirkus; Sibel Tunali Akar
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Publication Detail:
Type:  Journal Article     Date:  2009-06-23
Journal Detail:
Title:  Journal of hazardous materials     Volume:  171     ISSN:  1873-3336     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-09-28     Completed Date:  2010-01-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  865-71     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Faculty of Arts and Science, Eski??ehir Osmangazi University, Campus of Me??elik, 26480 Eski??ehir, Turkey. takar@ogu.edu.tr
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MeSH Terms
Descriptor/Qualifier:
Adsorption
Agaricus / metabolism
Azo Compounds / chemistry,  isolation & purification*
Biodegradation, Environmental*
Biomass
Coloring Agents / chemistry,  pharmacology*
Fungi / metabolism*
Hydrogen-Ion Concentration
Industrial Waste
Kinetics
Naphthalenes / chemistry,  isolation & purification*
Salts / chemistry
Temperature
Thermodynamics
Waste Disposal, Fluid / methods
Water Pollutants, Chemical / isolation & purification
Water Purification / methods
Chemical
Reg. No./Substance:
0/Acid Red 44; 0/Azo Compounds; 0/Coloring Agents; 0/Industrial Waste; 0/Naphthalenes; 0/Salts; 0/Water Pollutants, Chemical

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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