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Biodegradation of volatile organic compounds from paint industries
Aviraj Datta,
Published in
2012
PMID: 22573008
Volume: 167
   
Issue: 3
Pages: 564 - 580
Abstract
Methyl ethyl ketone (MEK) and methyl iso-butyl ketone (MIBK) constitute significant proportion of the total VOC emissions from manufacturing and application processes of surface coatings. Biodegradation of MEK and MIBK using an acclimatized mixed culture was evaluated, under aerobic condition. Biodegradation studies were carried out using MEK and MIBK as single substrates and in combination. Mixed-pollutant studies were conducted in MEK-dominated system, MIBK-dominated system, and MEK-MIBK equi-concentration systems to understand the concentration-dependent interaction of these compounds in a biosystem. Experimental data obtained from single-pollutant system was used to estimate the biokinetic parameters, viz. μmax, Ks, Ki, and YT, for these compounds. Among the several bio-kinetic models tested, Monod inhibition model was best suited for predicting the biodegradation of these two VOCs. Four multiple-substrate models, viz. nointeraction, competitive, un-competitive, and non-competitive were used to study the nature of inhibition for different combinations of these compounds. The biodegradation of MEK and MIBK mixtures was found to be best described by competitive inhibition model. However, the predictions were not very good for systems where MEK concentration was higher than MIBK concentration. © Springer Science+Business Media, LLC 2012.
About the journal
JournalApplied Biochemistry and Biotechnology
ISSN02732289
Open AccessNo
Concepts (56)
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    AEROBIC CONDITION
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    APPLICATION PROCESS
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    BIO SYSTEMS
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    BIO-KINETIC PARAMETERS
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    BIODEGRADATION STUDIES
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    BIOKINETIC MODELS
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    Competitive inhibition
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    Concentration-dependent
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    Experimental data
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    METHYL ETHYL KETONES
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    MIXED CULTURES
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    PAINT INDUSTRY
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    RATE KINETICS
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    Surface coatings
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    VOC EMISSIONS
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    Degradation
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    Enzyme inhibition
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    Ketones
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    Microbiology
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    Pollution
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    Substrates
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    Volatile organic compounds
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    Biodegradation
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    2 butanone
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    4 METHYL 2 PENTANONE
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    Paint
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    Volatile organic compound
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    Acclimatization
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    Activated sludge
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    Article
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    Bacterium culture
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    Biomass
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    Carbon source
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    Cell density
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    Concentration response
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    Culture medium
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    Enrichment culture
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    Gas chromatography
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    Kinetics
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    Liquid
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    MIXED CELL CULTURE
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    Model
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    Nonhuman
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    Nutrient
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    PAINT INDUSTRY
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    Pollutant
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    Prediction
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    Pseudomonas putida
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    Screening
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    Sewage treatment
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    Ultraviolet spectrophotometry
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    Bacteria
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    Biodegradation, environmental
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    Carbon
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    Environmental pollutants
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    Industrial waste