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Removal of chromate anions from aqueous stream by a cationic surfactant-modified yeast.
Bioresour Technol. 2004 Sep; 94(3):245-9.BT

Abstract

The removal of chromate anions (CrO(4)(2-)) from aqueous solution by a cationic surfactant-modified yeast was studied in a batch system. Cetyl trimethyl ammonium bromide (CTAB) was used for biomass modification; it substantially improved the biosorption efficiency. The influences of solution pH, CrO(4)(2-) anion concentrations and biomass concentration on the biosorption efficiency were investigated. The biosorption of chromate anions by modified yeast was strongly affected by pH. The optimum pH for biosorption of CrO(4)(2-) by modified yeast was 4.5-5.5. Zeta potential values of modified and unmodified yeast were determined at various pH values. Concentrations ranging from 5.2 to 208 mg/l Cr(VI) were tested and the biosorptive removal efficiency of the metal ions from aqueous solution was more than 99.5%. Freundlich and Langmuir isotherms were used to evaluate the data and the regression constants were determined.

Authors+Show Affiliations

Bingol A
Department of Environmental Engineering, Atatürk University, Erzurum 25240, Turkey.
Ucun H
No affiliation info available
Bayhan YK
No affiliation info available
Karagunduz A
No affiliation info available
Cakici A
No affiliation info available
Keskinler B
No affiliation info available

MeSH

AdsorptionBiomassCetrimoniumCetrimonium CompoundsChromatesHydrogen-Ion ConcentrationRegression AnalysisWaste Disposal, FluidWater Pollutants, ChemicalWater PurificationYeasts

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15182830

Citation

Bingol, Atifet, et al. "Removal of Chromate Anions From Aqueous Stream By a Cationic Surfactant-modified Yeast." Bioresource Technology, vol. 94, no. 3, 2004, pp. 245-9.
Bingol A, Ucun H, Bayhan YK, et al. Removal of chromate anions from aqueous stream by a cationic surfactant-modified yeast. Bioresour Technol. 2004;94(3):245-9.
Bingol, A., Ucun, H., Bayhan, Y. K., Karagunduz, A., Cakici, A., & Keskinler, B. (2004). Removal of chromate anions from aqueous stream by a cationic surfactant-modified yeast. Bioresource Technology, 94(3), 245-9.
Bingol A, et al. Removal of Chromate Anions From Aqueous Stream By a Cationic Surfactant-modified Yeast. Bioresour Technol. 2004;94(3):245-9. PubMed PMID: 15182830.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Removal of chromate anions from aqueous stream by a cationic surfactant-modified yeast. AU - Bingol,Atifet, AU - Ucun,Handan, AU - Bayhan,Yalcin Kemal, AU - Karagunduz,Ahmet, AU - Cakici,Avni, AU - Keskinler,Bulent, PY - 2003/05/20/received PY - 2004/01/28/accepted PY - 2004/6/9/pubmed PY - 2004/8/31/medline PY - 2004/6/9/entrez SP - 245 EP - 9 JF - Bioresource technology JO - Bioresour Technol VL - 94 IS - 3 N2 - The removal of chromate anions (CrO(4)(2-)) from aqueous solution by a cationic surfactant-modified yeast was studied in a batch system. Cetyl trimethyl ammonium bromide (CTAB) was used for biomass modification; it substantially improved the biosorption efficiency. The influences of solution pH, CrO(4)(2-) anion concentrations and biomass concentration on the biosorption efficiency were investigated. The biosorption of chromate anions by modified yeast was strongly affected by pH. The optimum pH for biosorption of CrO(4)(2-) by modified yeast was 4.5-5.5. Zeta potential values of modified and unmodified yeast were determined at various pH values. Concentrations ranging from 5.2 to 208 mg/l Cr(VI) were tested and the biosorptive removal efficiency of the metal ions from aqueous solution was more than 99.5%. Freundlich and Langmuir isotherms were used to evaluate the data and the regression constants were determined. SN - 0960-8524 UR - https://www.unboundmedicine.com/medline/citation/15182830/Removal_of_chromate_anions_from_aqueous_stream_by_a_cationic_surfactant_modified_yeast_ DB - PRIME DP - Unbound Medicine ER -