Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion

Biomethanation is a process by which organic material is microbiologically converted under anaerobic conditions to biogas. Three main physiological groups of microorganisms are involved: fermenting bacteria, organic acid oxidizing bacteria, and methanogenic archaea. Microorganisms degrade organic ma...

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Main Authors:	Amit Ganguly, Richard Blanchard, Andrew D. Wheatley, Pradip K. Chatterjee
Format:	Default Article
Published:	2016
Subjects:	Mechanical engineering not elsewhere classified Solid bio-waste Thermophilic anaerobic digestion VFA COD Methane Mechanical Engineering not elsewhere classified
Online Access:	https://hdl.handle.net/2134/22280
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spelling	rr-article-95693452016-08-04T00:00:00Z Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion Amit Ganguly (786807) Richard Blanchard (1251333) Andrew D. Wheatley (7126136) Pradip K. Chatterjee (7214612) Mechanical engineering not elsewhere classified Solid bio-waste Thermophilic anaerobic digestion VFA COD Methane Mechanical Engineering not elsewhere classified Biomethanation is a process by which organic material is microbiologically converted under anaerobic conditions to biogas. Three main physiological groups of microorganisms are involved: fermenting bacteria, organic acid oxidizing bacteria, and methanogenic archaea. Microorganisms degrade organic matter via cascades of biochemical conversions to methane and carbon dioxide. Syntrophic relationships between hydrogen producers (acetogens) and hydrogen scavengers (homoacetogens, hydrogenotrophic methanogens, etc.) are critical to the process. Determination of practical and theoretical methane potential is very important for design for optimal process design, configuration, and effective evaluation of economic feasibility. The present work is undertaken for generating bio-gas from food waste, kitchen waste, water hyacinth and Parthenium biomass separately using anaerobic digestion process. Attempts have been made to optimize various parameters viz. pH, temperature, volatile fatty acid (VFA), chemical oxygen demand (COD) in order to determine the most favorable condition for maximum biogas production from the different substrates. The biogas yields have been determined using batch anaerobic thermophilic digestion tests with a retention time of 55 days using biogas plant slurry and water treatment plant sludge separately as inoculum and bakhar, acetic acid and cow urine as catalyst. The methylotroph consortium present in the biogas slurry or water treatment sludge use the carbon source from methane for their growth due to which there is a significant change in methane production in different substrates under different conditions. The total biogas generated in the system over the experimental period was the sum of methane and carbon dioxide. Biogas produced from the decomposition of food waste produced a mixture of 65% methane and 24% carbon dioxide. 2016-08-04T00:00:00Z Text Journal contribution 2134/22280 https://figshare.com/articles/journal_contribution/Optimization_of_process_parameters_for_catalytic_conversion_of_solid_bio-waste_during_thermophilic_anaerobic_digestion/9569345 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified Solid bio-waste Thermophilic anaerobic digestion VFA COD Methane Mechanical Engineering not elsewhere classified
spellingShingle	Mechanical engineering not elsewhere classified Solid bio-waste Thermophilic anaerobic digestion VFA COD Methane Mechanical Engineering not elsewhere classified Amit Ganguly Richard Blanchard Andrew D. Wheatley Pradip K. Chatterjee Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion
description	Biomethanation is a process by which organic material is microbiologically converted under anaerobic conditions to biogas. Three main physiological groups of microorganisms are involved: fermenting bacteria, organic acid oxidizing bacteria, and methanogenic archaea. Microorganisms degrade organic matter via cascades of biochemical conversions to methane and carbon dioxide. Syntrophic relationships between hydrogen producers (acetogens) and hydrogen scavengers (homoacetogens, hydrogenotrophic methanogens, etc.) are critical to the process. Determination of practical and theoretical methane potential is very important for design for optimal process design, configuration, and effective evaluation of economic feasibility. The present work is undertaken for generating bio-gas from food waste, kitchen waste, water hyacinth and Parthenium biomass separately using anaerobic digestion process. Attempts have been made to optimize various parameters viz. pH, temperature, volatile fatty acid (VFA), chemical oxygen demand (COD) in order to determine the most favorable condition for maximum biogas production from the different substrates. The biogas yields have been determined using batch anaerobic thermophilic digestion tests with a retention time of 55 days using biogas plant slurry and water treatment plant sludge separately as inoculum and bakhar, acetic acid and cow urine as catalyst. The methylotroph consortium present in the biogas slurry or water treatment sludge use the carbon source from methane for their growth due to which there is a significant change in methane production in different substrates under different conditions. The total biogas generated in the system over the experimental period was the sum of methane and carbon dioxide. Biogas produced from the decomposition of food waste produced a mixture of 65% methane and 24% carbon dioxide.
format	Default Article
author	Amit Ganguly Richard Blanchard Andrew D. Wheatley Pradip K. Chatterjee
author_facet	Amit Ganguly Richard Blanchard Andrew D. Wheatley Pradip K. Chatterjee
author_sort	Amit Ganguly (786807)
title	Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion
title_short	Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion
title_full	Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion
title_fullStr	Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion
title_full_unstemmed	Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion
title_sort	optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion
publishDate	2016
url	https://hdl.handle.net/2134/22280
_version_	1797283398831570944

Optimization of process parameters for catalytic conversion of solid bio-waste during thermophilic anaerobic digestion

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