Biosorption of Ni (II) from Aqueous Solution by Aspergillus niger
| Autor: | Chun Yang Jiang, Zhao Shao, Li Fang Zhang |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Langmuir
Aqueous solution biology Aspergillus niger Environmental engineering Biosorption chemistry.chemical_element Langmuir adsorption model General Medicine biology.organism_classification Metal Nickel symbols.namesake chemistry visual_art symbols visual_art.visual_art_medium Freundlich equation Nuclear chemistry |
| Zdroj: | Applied Mechanics and Materials. :282-285 |
| ISSN: | 1662-7482 |
| DOI: | 10.4028/www.scientific.net/amm.556-562.282 |
| Popis: | In this study, Biosorption of Ni (II) ions from aqueous solution by using biomass ofAspergillusnigerwas investigated. Different parameters such as initial pH, Ni (II) ions concentration, contact time and temperature were explored. The biosorption of Ni (II) ions was highly pH dependent and the optimum pH for biosorption of Ni (II) ions was found to be 7.0. The biosorption equilibrium was established in about 30min of contact time. Ni (II) ions removal increased with increasing temperature in the studied range. Equilibrium uptake of Ni (II) ions onto biomass increased with increasing initial Ni (II) ions concentration (20-300mg/L). The Langmuir and Freundlich isotherm models were applied to experimental equilibrium data and the Langmuir model better described the equilibrium metal uptake than the Freundlich model. These results suggest that the biomass ofAspergillusnigeris a promising biosorbent for removal of nickel (II) ions from the wastewater. |
| Databáze: | OpenAIRE |
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