Document Detail


Removal of imidazolium ionic liquids by microbial associations: Study of the biodegradability and kinetics.
MedLine Citation:
PMID:  22925899     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The aim of this study was to estimate the biodegradability of the selected imidazolium ionic liquids and to determine the kinetic parameters for the biological treatment of wastewater containing these ionic liquids. Biodegradability was evaluated with the help of the Organisation for Economic Co-operation and Development (OECD) tests, while oxygen uptake rate (OUR) tests were made in order to calculate the values of Monod kinetic parameters. The results obtained from both types of the tests showed that ionic liquids of chemical structure of 1-alkyl-3-methyl imidazolium bromide were poorly biodegradable and co-biodegradable compounds, although their biodegradability increased with the elongation of the alkyl chain length. At the same time the presence of the imidazolium-based ionic liquids in wastewater at concentration of 50 mg l(-1) did not inhibit biomass growth as well as did not decrease the affinity of substrate to biomass. The values of both Monod kinetic parameters, i.e., maximum specific growth rate (μ(max)) and half saturation constant (K(S)), increased with the increase in chain length of the alkyl substituent.
Authors:
Ewa Liwarska-Bizukojc; Dorota Gendaszewska
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-24
Journal Detail:
Title:  Journal of bioscience and bioengineering     Volume:  -     ISSN:  1347-4421     ISO Abbreviation:  J. Biosci. Bioeng.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888800     Medline TA:  J Biosci Bioeng     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Affiliation:
Technical University of Lodz, Institute of Fermentation Technology and Microbiology, Wolczanska 171/173, 90-924 Lodz, Poland.
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