2014•Advanced materials researchOpen access

Industrial Fermentation Waste Aspergillus niger as Adsorbent for Sequestering Cr6 + from Aqueous Solution

Wei Na Xue, Yan Bo Peng, Jie Min Cheng

Abstract

Biosorption of Cr6 + ions by industrial fermentation waste Aspergillus niger free dry mycelium was investigated in a batch system..The influences of Cr6 +concentration, biosorbent dose, solution pH and contact time on Cr6 +were investigated.Optimum biosorption was observed to be 73.5% at pH 5,biosorbent dose 20g/L, initial Cr6 + concentration 100 mg/L. Adsorption equilibrium was established in 800 min at 30°C. The Langmuir model compared to the Biosorption equilibrium data were best described by Langmuir isotherm model, R2=0.9999.

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Available abstract

Key concepts: Biosorption, Aspergillus niger, Langmuir adsorption model, Nuclear chemistry, Aqueous solution, Adsorption, Chemistry, Fermentation