Biosorption of chromium(VI) from aqueous solution by cone biomass of Pinus sylvestris

Biosorption of chromium(VI) on to cone biomass of Pinus sylvestris was studied with variation in the parameters of pH, initial metal ion concentration and agitation speed. The biosorption of Cr(VI) was increased when pH of the solution was decreased from 7.0 to 1.0. The maximum chromium biosorption...

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Veröffentlicht in:	Bioresource technology 2002-11, Vol.85 (2), p.155-158
Hauptverfasser:	Ucun, Handan, Bayhan, Y.Kemal, Kaya, Yusuf, Cakici, Avni, Faruk Algur, O
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption agitation Agronomy. Soil science and plant productions Applied sciences aqueous solutions Biological and medical sciences Biomass biosorbents Biosorption Biotechnology chromium Chromium - chemistry Chromium(VI) Cone Exact sciences and technology Fundamental and applied biological sciences. Psychology General agronomy. Plant production General purification processes Heavy metal Hydrogen-Ion Concentration Pinus - metabolism Pinus sylvestris Pollution sorption isotherms Temperature Use of agricultural and forest wastes. Biomass use, bioconversion Waste Disposal, Fluid - methods Wastewater treatment Wastewaters Water treatment and pollution
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Zusammenfassung:	Biosorption of chromium(VI) on to cone biomass of Pinus sylvestris was studied with variation in the parameters of pH, initial metal ion concentration and agitation speed. The biosorption of Cr(VI) was increased when pH of the solution was decreased from 7.0 to 1.0. The maximum chromium biosorption occurred at 150 rpm agitation. An increase in chromium/biomass ratio caused a decrease in the biosorption efficiency. The adsorption constants were found from the Freundlich isotherm at 25 °C. The cone biomass, which is a readily available biosorbent, was found suitable for removing chromium from aqueous solution.
ISSN:	0960-8524 1873-2976
DOI:	10.1016/S0960-8524(02)00086-X