Removal of heavy metals from industrial wastewater by free and immobilized cells of Aspergillus niger

Aspergillus niger, strain B 77, was immobilized by inclusion in two different polymers: polyvinyl – alcohol hydrogel (PVA) and Ca – alginate. The biomass/polymer matrices were formed into equal size unites of the cubes and spheres, and the resulting biomass/polymer matrices were used to remove heavy...

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Bibliographic Details
Published in:International biodeterioration & biodegradation 2010-09, Vol.64 (6), p.447-451
Main Authors: Tsekova, K., Todorova, D., Ganeva, S.
Format: Article
Language:English
Subjects:
Alginates
Aspergillus niger
Biomass
Biosorption
Heavy metals
Immobilization
Mathematical analysis
Matrices
Polymers
Polyvinyl alcohols
Wastewater
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Summary:Aspergillus niger, strain B 77, was immobilized by inclusion in two different polymers: polyvinyl – alcohol hydrogel (PVA) and Ca – alginate. The biomass/polymer matrices were formed into equal size unites of the cubes and spheres, and the resulting biomass/polymer matrices were used to remove heavy metals (Cu 2+, Mn 2+, Zn 2+, Ni 2+, Fe 3+, Pb 2+, Cd 2+) from wastewater in shake flask experiments. Total biosorption capacities of the biosorbents were in the following order: free cells (33.3 mg/g) 
ISSN:0964-8305
1879-0208
DOI:10.1016/j.ibiod.2010.05.003