Biosorption of Cr (VI) from aqueous solutions by biomass of Agaricus bisporus
| Autor: | Neşe Ertugay, Yalçın Kemal Bayhan |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Chromium
Langmuir Environmental Engineering Health Toxicology and Mutagenesis Agaricus Waste Disposal Fluid Water Purification symbols.namesake Adsorption Spectroscopy Fourier Transform Infrared Environmental Chemistry Freundlich equation Biomass Waste Management and Disposal Aqueous solution Chromatography Chemistry Biosorption Temperature Langmuir adsorption model Hydrogen-Ion Concentration Pollution Solutions Kinetics symbols Thermodynamics Agaricus bisporus Water Pollutants Chemical Waste disposal Nuclear chemistry |
| Zdroj: | Journal of hazardous materials. 154(1-3) |
| ISSN: | 0304-3894 |
| Popis: | In this study, biosorption of Cr (VI) ion was investigated by using biomass of Agaricus bisporus (a species of mushroom) in a temperature and shaking speed controlled shaker. The effect of shaking speed, biomass concentration, initial metal ion concentration and initial pH on biosorption yield was determined and the fitness of biosorption data for Freundlich and Langmuir adsorption models was investigated. Optimum biosorption conditions were found to be pH 1, C0=50 mg/l, m=10 g/l, shaking speed=150 rpm, T=20 degrees C Cr (VI), respectively. It was found that biosorption of Cr (VI) ions onto biomass of A. bisporus was better suitable to Freundlich adsorption model than Langmuir adsorption model. The correlation coefficients for the second-order kinetic model obtained were found to be 0.999 for all concentrations. These indicate that the biosorption system studied belongs to the second-order kinetic model. |
| Databáze: | OpenAIRE |
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