A COMPARATIVE-STUDY OF VARIOUS BIOSORBENTS FOR REMOVAL OF CHROMIUM(VI) IONS FROM INDUSTRIAL-WASTE WATERS

Authors
NOURBAKHSH M SAG Y OZER D AKSU Z KUTSAL T CAGLAR A
Citation
M. Nourbakhsh et al., A COMPARATIVE-STUDY OF VARIOUS BIOSORBENTS FOR REMOVAL OF CHROMIUM(VI) IONS FROM INDUSTRIAL-WASTE WATERS, Process biochemistry, 29(1), 1994, pp. 1-5
Citations number
10
Categorie Soggetti
Biothechnology & Applied Migrobiology",Biology
Journal title
Process biochemistry → ACNP
ISSN journal
13595113
Volume
29
Issue
1
Year of publication
1994
Pages
1 - 5
Database
ISI
SICI code
1359-5113(1994)29:1<1:ACOVBF>2.0.ZU;2-6
Abstract
Chromium(VI) biosorption to non-living biomass of Chlorella vulgaris, Clodophara crispata, Zoogloea ramigera, Rhizopus arrhizus and Saccharo myces cerevisiae was investigated The initial pH of the metal ion solu tion effected metal uptake capacity of the biomass and the optimum ini tial pH was found as 1.0-2.0 for all microorganisms. Maximum adsorptio n rates of metal ions to microbial biomass were obtained at temperatur es in the range 25-35-degrees-C. The adsorption rate increased with in creasing metal ion concentration for C. vulgaris, C. crispata, R. Arrh izus, S. cerevisiae and Z. ramigera up to 200, 200, 125, 100 and 75 mg /litre, respectively. Freundlich constants were determined from the Fr eundlich adsorption isotherms of all microorganisms.