Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digester

This study carried out a comparative analysis of the rates of production of biogas from various organic wastes and weeds which enabled the determination of optimal ratio of poultry droppings to domestic wastes. Digester was prepared for the anaerobic fermentation of the domestic wastes and weeds. Th...

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Main Authors: Ugochukwu C. Okonkwo, Ejiroghene Onokpite, Anthony O. Onokwai
Format: Article
Language:English
Published: Elsevier 2018-04-01
Series:Journal of King Saud University: Engineering Sciences
Online Access:http://www.sciencedirect.com/science/article/pii/S1018363916000143
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author Ugochukwu C. Okonkwo
Ejiroghene Onokpite
Anthony O. Onokwai
author_facet Ugochukwu C. Okonkwo
Ejiroghene Onokpite
Anthony O. Onokwai
author_sort Ugochukwu C. Okonkwo
collection DOAJ
description This study carried out a comparative analysis of the rates of production of biogas from various organic wastes and weeds which enabled the determination of optimal ratio of poultry droppings to domestic wastes. Digester was prepared for the anaerobic fermentation of the domestic wastes and weeds. The gas production did not begin until the 7th day and increased steadily at first, and then increased sharply until it reached its peak on the 18th day before declining. The total gas produced within the 22 days of experimentation was 1771 cm3. The maximum volume of gas amounting to 809 cm3 was produced by the sample containing 50% poultry dropping and 50% weeds. This indicates that this sample possesses the best C/N ratio of all the samples prepared. For restarted digester, gas production began on the 2nd day as against the 7th day with no restarted digester and the gas production peaked earlier. Keywords: Digester, Optimal ratio, Biogas production, Organic wastes, C/N ratio
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spelling doaj.art-767e91e6360240b5bc55614da7fab8262022-12-22T02:48:19ZengElsevierJournal of King Saud University: Engineering Sciences1018-36392018-04-01302123129Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digesterUgochukwu C. Okonkwo0Ejiroghene Onokpite1Anthony O. Onokwai2Nnamdi Azikiwe University, Awka, Anambra State, Nigeria; Corresponding author.Nnamdi Azikiwe University, Awka, Anambra State, NigeriaLandmark University, Omu-Aran, Kwara State, NigeriaThis study carried out a comparative analysis of the rates of production of biogas from various organic wastes and weeds which enabled the determination of optimal ratio of poultry droppings to domestic wastes. Digester was prepared for the anaerobic fermentation of the domestic wastes and weeds. The gas production did not begin until the 7th day and increased steadily at first, and then increased sharply until it reached its peak on the 18th day before declining. The total gas produced within the 22 days of experimentation was 1771 cm3. The maximum volume of gas amounting to 809 cm3 was produced by the sample containing 50% poultry dropping and 50% weeds. This indicates that this sample possesses the best C/N ratio of all the samples prepared. For restarted digester, gas production began on the 2nd day as against the 7th day with no restarted digester and the gas production peaked earlier. Keywords: Digester, Optimal ratio, Biogas production, Organic wastes, C/N ratiohttp://www.sciencedirect.com/science/article/pii/S1018363916000143
spellingShingle Ugochukwu C. Okonkwo
Ejiroghene Onokpite
Anthony O. Onokwai
Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digester
Journal of King Saud University: Engineering Sciences
title Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digester
title_full Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digester
title_fullStr Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digester
title_full_unstemmed Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digester
title_short Comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester/restarted digester
title_sort comparative study of the optimal ratio of biogas production from various organic wastes and weeds for digester restarted digester
url http://www.sciencedirect.com/science/article/pii/S1018363916000143
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AT ejirogheneonokpite comparativestudyoftheoptimalratioofbiogasproductionfromvariousorganicwastesandweedsfordigesterrestarteddigester
AT anthonyoonokwai comparativestudyoftheoptimalratioofbiogasproductionfromvariousorganicwastesandweedsfordigesterrestarteddigester