Journal ArticleDOI
Kinetic evaluation for aerobic biodegradation of resorcinol in a batch reactor
TLDR
Mixed microbial cultures contained in the sludge of effluent treatment plant of a coke oven industry studied for its resorcinol biodegradation capacity showed that, after necessary acclimatisation, the culture was able to biodegrade up to a concentration of 500 mg/L in the substrate.Abstract:
Mixed microbial cultures contained in the sludge of effluent treatment plant of a coke oven industry have been studied for its resorcinol biodegradation capacity under aerobic environment. The result showed that, after necessary acclimatisation, the culture was able to biodegrade up to a concentration of 500 mg/L of resorcinol in the substrate. The specific growth rate of microorganisms was found to be increased steadily up to 300 mg/L of resorcinol as sole carbon source, and then the rate was observed to be descended, but substrate degradation rate increases rapidly up to 400 mg/L, but decreased at 500 mg/L. The biodegradation kinetics is fitted to different substrate inhibition models. Among all models, Luong model was best fitted for resorcinol (RMSE = 0.0104). The biodegradation constants estimated using theses models showed good potential of the mixed microbial culture for resorcinol biodegradation.read more
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Journal ArticleDOI
Biodegradation kinetics of Bi-substrate solution of phenol and resorcinol in an aerobic batch reactor
Sudipta Dey,Somnath Mukherjee +1 more
TL;DR: Both specific growth rate of the culture and the specific substrate degradation rate have descended to lower value in presence of phenol and resorcinol as dual substrate in the solution compared to their presence as single substrate, showing the interaction and inhibition by each substrate.
References
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Journal ArticleDOI
A mathematical model for the continuous culture of microorganisms utilizing inhibitory substrates
TL;DR: The model should be of value in investigations of the stability of biological processes used for the treatment of certain industrial wastes such as those containing phenols, thiocyanates, nitrates, ammonia, volatile acids, etc., which are known to be inhibitory to many of the organisms metabolizing them.
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The influence of high substrate concentrations on microbial kinetics
TL;DR: Comparison of results obtained in continuous culture with results from exponential‐feed culture systems is shown to offer a novel experimental method for evaluating the effect of the cell age distribution on the properties and metabolic activity of a culture.
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Kinetics of product inhibition in alcohol fermentation
TL;DR: The inhibitory effect of ethanol concentration p in a medium on the specific rates of growth μ and ethanol production ν of a specific strain of baker's yeast was studied in a chemostat, where except for ethanol as the product, only the concentration of glucose S was controlled to limit the metabolic activity of the yeast.
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Biodegradation kinetics of phenol and catechol using Pseudomonas putida MTCC 1194
TL;DR: In this paper, the degradation of phenol and catechol by a bacterial strain of Pseudomonas putida (MTCC 1194) in basal salt medium (BSM) was investigated in shake-flask experiments at 299±±-03 °C and pH of approximately 71.
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Anaerobic Metabolism of Aromatic Compounds
Johann Heider,Georg Fuchs +1 more
TL;DR: The anaerobic pathways which allow bacteria to utilize aromatics even in the absence of oxygen are outlined and previously unknown reactions and on the enzymes characteristic for such novel metabolism are focused on.