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Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms

Imidazolium salts are one of the most often used and investigated groups of ionic liquids (ILs). The research concerning their ecotoxicity comprised many test organisms representing different trophic levels; however, their impact on mixed cultures of microorganisms such as activated sludge has been...

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Autor principal: Liwarska-Bizukojc, Ewa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3178028/
https://www.ncbi.nlm.nih.gov/pubmed/21966054
http://dx.doi.org/10.1007/s11270-011-0793-x
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author Liwarska-Bizukojc, Ewa
author_facet Liwarska-Bizukojc, Ewa
author_sort Liwarska-Bizukojc, Ewa
collection PubMed
description Imidazolium salts are one of the most often used and investigated groups of ionic liquids (ILs). The research concerning their ecotoxicity comprised many test organisms representing different trophic levels; however, their impact on mixed cultures of microorganisms such as activated sludge has been hardly ever investigated. Thus, in this work, the effect of imidazolium ionic liquids on dehydrogenase activity of activated sludge was estimated. Three activated sludges of different properties and origin were tested. It occurred that 1-alkyl-3-methyl imidazolium bromides do not inhibit dehydrogenase activity of sludge, if the alkyl chain contains up to six carbon atoms. The values of IC50 for these ILs were above 100 mg l(−1). At the same time, the inhibitory effect on dehydrogenase activity of activated sludge increases with the increase in chain length of the alkyl substituent. The degree of inhibition of dehydrogenase activity of sludge microorganisms is dependent on activated sludge properties.
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spelling pubmed-31780282011-09-30 Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms Liwarska-Bizukojc, Ewa Water Air Soil Pollut Article Imidazolium salts are one of the most often used and investigated groups of ionic liquids (ILs). The research concerning their ecotoxicity comprised many test organisms representing different trophic levels; however, their impact on mixed cultures of microorganisms such as activated sludge has been hardly ever investigated. Thus, in this work, the effect of imidazolium ionic liquids on dehydrogenase activity of activated sludge was estimated. Three activated sludges of different properties and origin were tested. It occurred that 1-alkyl-3-methyl imidazolium bromides do not inhibit dehydrogenase activity of sludge, if the alkyl chain contains up to six carbon atoms. The values of IC50 for these ILs were above 100 mg l(−1). At the same time, the inhibitory effect on dehydrogenase activity of activated sludge increases with the increase in chain length of the alkyl substituent. The degree of inhibition of dehydrogenase activity of sludge microorganisms is dependent on activated sludge properties. Springer Netherlands 2011-04-05 2011 /pmc/articles/PMC3178028/ /pubmed/21966054 http://dx.doi.org/10.1007/s11270-011-0793-x Text en © The Author(s) 2011 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Article
Liwarska-Bizukojc, Ewa
Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms
title Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms
title_full Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms
title_fullStr Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms
title_full_unstemmed Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms
title_short Influence of Imidazolium Ionic Liquids on Dehydrogenase Activity of Activated Sludge Microorganisms
title_sort influence of imidazolium ionic liquids on dehydrogenase activity of activated sludge microorganisms
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3178028/
https://www.ncbi.nlm.nih.gov/pubmed/21966054
http://dx.doi.org/10.1007/s11270-011-0793-x
work_keys_str_mv AT liwarskabizukojcewa influenceofimidazoliumionicliquidsondehydrogenaseactivityofactivatedsludgemicroorganisms