Effect of inoculum to substrate ratio on biogas production from digested goat paunch manure
In this study goat paunch manure (GPM) was anaerobically digested under mesophilic condition to determine its biogas potential. Inoculum to substrate (I/S) ratios of 1.45, 2.2 and 4.3 were digested in biodigesters labeled R15, R10 and R5 respectively to determine the effect of substrate concentratio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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University of Maiduguri
2014-08-01
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| Series: | Arid Zone Journal of Engineering, Technology and Environment |
| Online Access: | http://azojete.com.ng/index.php/azojete/article/view/147/122 |
| _version_ | 1819006668914032640 |
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| author | A. U. Dzivama N. A. Aviara A. A. Lawal M. K. Wasinda |
| author_facet | A. U. Dzivama N. A. Aviara A. A. Lawal M. K. Wasinda |
| author_sort | A. U. Dzivama |
| collection | DOAJ |
| description | In this study goat paunch manure (GPM) was anaerobically digested under mesophilic condition to determine its biogas potential. Inoculum to substrate (I/S) ratios of 1.45, 2.2 and 4.3 were digested in biodigesters labeled R15, R10 and R5 respectively to determine the effect of substrate concentration on biogas production rates and accumulation. Biogas production accumulation was simulated using first order exponential rise and modified Gompertz equations. Results showed that I/S ratio had no significant effect on biogas production rate. Biogas production rate increased to the peak in the order of R10 (0.08856 Nm3kg-1VSd-1), R5 (0.07653 Nm3kg-1VSd-1) and R15 (0.05824 Nm3kg-1VSd-1) on 10th, 9th and 2nd day and decreased to zero on 30th, 29th and 30th day of the digestion period, respectively. Biogas production accumulation increased from 0.44273 to 1.00783 Nm3kg-1VS with I/S ratio increase. Coefficient of determination (R2) of the first order exponential rise regression ranged from 0.9602 to 0.9895, while R2 for modified Gompertz ranged from 0.9983 to 0.9992 showing better simulation of biogas production accumulation. |
| first_indexed | 2024-12-21T00:12:21Z |
| format | Article |
| id | doaj.art-acf030a585184056b3f550dce8d5fa36 |
| institution | Directory Open Access Journal |
| issn | 2545-5818 2545-5818 |
| language | English |
| last_indexed | 2024-12-21T00:12:21Z |
| publishDate | 2014-08-01 |
| publisher | University of Maiduguri |
| record_format | Article |
| series | Arid Zone Journal of Engineering, Technology and Environment |
| spelling | doaj.art-acf030a585184056b3f550dce8d5fa362022-12-21T19:22:19ZengUniversity of MaiduguriArid Zone Journal of Engineering, Technology and Environment2545-58182545-58182014-08-011095102Effect of inoculum to substrate ratio on biogas production from digested goat paunch manureA. U. Dzivama0N. A. Aviara1A. A. Lawal2M. K. Wasinda3Department of Agricultural and Environmental Resources Engineering Faculty of Engineering, University of Maiduguri, Maiduguri, Borno State, NigeriaDepartment of Agricultural and Environmental Resources Engineering Faculty of Engineering, University of Maiduguri, Maiduguri, Borno State, NigeriaDepartment of Agricultural and Environmental Resources Engineering Faculty of Engineering, University of Maiduguri, Maiduguri, Borno State, NigeriaDepartment of Agricultural and Environmental Resources Engineering Faculty of Engineering, University of Maiduguri, Maiduguri, Borno State, NigeriaIn this study goat paunch manure (GPM) was anaerobically digested under mesophilic condition to determine its biogas potential. Inoculum to substrate (I/S) ratios of 1.45, 2.2 and 4.3 were digested in biodigesters labeled R15, R10 and R5 respectively to determine the effect of substrate concentration on biogas production rates and accumulation. Biogas production accumulation was simulated using first order exponential rise and modified Gompertz equations. Results showed that I/S ratio had no significant effect on biogas production rate. Biogas production rate increased to the peak in the order of R10 (0.08856 Nm3kg-1VSd-1), R5 (0.07653 Nm3kg-1VSd-1) and R15 (0.05824 Nm3kg-1VSd-1) on 10th, 9th and 2nd day and decreased to zero on 30th, 29th and 30th day of the digestion period, respectively. Biogas production accumulation increased from 0.44273 to 1.00783 Nm3kg-1VS with I/S ratio increase. Coefficient of determination (R2) of the first order exponential rise regression ranged from 0.9602 to 0.9895, while R2 for modified Gompertz ranged from 0.9983 to 0.9992 showing better simulation of biogas production accumulation.http://azojete.com.ng/index.php/azojete/article/view/147/122 |
| spellingShingle | A. U. Dzivama N. A. Aviara A. A. Lawal M. K. Wasinda Effect of inoculum to substrate ratio on biogas production from digested goat paunch manure Arid Zone Journal of Engineering, Technology and Environment |
| title | Effect of inoculum to substrate ratio on biogas production from digested goat paunch manure |
| title_full | Effect of inoculum to substrate ratio on biogas production from digested goat paunch manure |
| title_fullStr | Effect of inoculum to substrate ratio on biogas production from digested goat paunch manure |
| title_full_unstemmed | Effect of inoculum to substrate ratio on biogas production from digested goat paunch manure |
| title_short | Effect of inoculum to substrate ratio on biogas production from digested goat paunch manure |
| title_sort | effect of inoculum to substrate ratio on biogas production from digested goat paunch manure |
| url | http://azojete.com.ng/index.php/azojete/article/view/147/122 |
| work_keys_str_mv | AT audzivama effectofinoculumtosubstrateratioonbiogasproductionfromdigestedgoatpaunchmanure AT naaviara effectofinoculumtosubstrateratioonbiogasproductionfromdigestedgoatpaunchmanure AT aalawal effectofinoculumtosubstrateratioonbiogasproductionfromdigestedgoatpaunchmanure AT mkwasinda effectofinoculumtosubstrateratioonbiogasproductionfromdigestedgoatpaunchmanure |