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Removal of Copper(II) from Aqueous Solution by Pre-treated Saccharomyces cerevisiae

Year 2015, Volume: 3 Issue: 4, 63 - 70, 06.01.2016

Abstract

The biosorption of copper(II) ions from aqueous solution by dead S. cerevisiae treated with methanol, ethanol and sodium hydroxide was investigated. Batch experiments were conducted to investigate the key parameters affecting the biosorption capacity of S. cerevisiae for copper ion. Removal efficiency of biosorbents was studied as a function of pH (2–5), temperature (20–40 °C), initial copper ion concentration (20–120 mg/L), biosorbent dose (0.5 – 5 g/L), and contact time (0–120 min). Maximum biosorption capacity of 11.6 mg/g for the untreated younger cell was observed at pH of 5.0 and at 50 °C with a biosorbent dose of 3 g/L and copper ion concentration of 75 mg/L. The highest metal uptake value (17.7 mg/g) was obtained by sodium hydroxide treated yeast. Desorption studies showed that Cu(II) ions could be removed from the biomass with EDTA (ethylenediaminetetraacetic acid) easily and the regenerated biomass could be reused repeatedly without any significant loss in its effectives.

Year 2015, Volume: 3 Issue: 4, 63 - 70, 06.01.2016

Abstract

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Details

Primary Language English
Journal Section Chemical Engineering
Authors

Ayşe Tosun

Publication Date January 6, 2016
Submission Date April 14, 2015
Published in Issue Year 2015 Volume: 3 Issue: 4

Cite

APA Tosun, A. (2016). Removal of Copper(II) from Aqueous Solution by Pre-treated Saccharomyces cerevisiae. Gazi University Journal of Science Part A: Engineering and Innovation, 3(4), 63-70.