Biogas production by co-digestion of goat manure with three crop residues.
Goat manure (GM) is an excellent raw material for anaerobic digestion because of its high total nitrogen content and fermentation stability. Several comparative assays were conducted on the anaerobic co-digestion of GM with three crop residues (CRs), namely, wheat straw (WS), corn stalks (CS) and ri...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3692550?pdf=render |
| _version_ | 1819016418858893312 |
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| author | Tong Zhang Linlin Liu Zilin Song Guangxin Ren Yongzhong Feng Xinhui Han Gaihe Yang |
| author_facet | Tong Zhang Linlin Liu Zilin Song Guangxin Ren Yongzhong Feng Xinhui Han Gaihe Yang |
| author_sort | Tong Zhang |
| collection | DOAJ |
| description | Goat manure (GM) is an excellent raw material for anaerobic digestion because of its high total nitrogen content and fermentation stability. Several comparative assays were conducted on the anaerobic co-digestion of GM with three crop residues (CRs), namely, wheat straw (WS), corn stalks (CS) and rice straw (RS), under different mixing ratios. All digesters were implemented simultaneously under mesophilic temperature at 35±1 °C with a total solid concentration of 8%. Result showed that the combination of GM with CS or RS significantly improved biogas production at all carbon-to-nitrogen (C/N) ratios. GM/CS (30:70), GM/CS (70:30), GM/RS (30:70) and GM/RS (50:50) produced the highest biogas yields from different co-substrates (14840, 16023, 15608 and 15698 mL, respectively) after 55 d of fermentation. Biogas yields of GM/WS 30:70 (C/N 35.61), GM/CS 70:30 (C/N 21.19) and GM/RS 50:50 (C/N 26.23) were 1.62, 2.11 and 1.83 times higher than that of CRs, respectively. These values were determined to be the optimal C/N ratios for co-digestion. However, compared with treatments of GM/CS and GM/RS treatments, biogas generated from GM/WS was only slightly higher than the single digestion of GM or WS. This result was caused by the high total carbon content (35.83%) and lignin content (24.34%) in WS, which inhibited biodegradation. |
| first_indexed | 2024-12-21T02:47:19Z |
| format | Article |
| id | doaj.art-cf6176092f8f4418b762561567d01fe8 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-21T02:47:19Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-cf6176092f8f4418b762561567d01fe82022-12-21T19:18:32ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0186e6684510.1371/journal.pone.0066845Biogas production by co-digestion of goat manure with three crop residues.Tong ZhangLinlin LiuZilin SongGuangxin RenYongzhong FengXinhui HanGaihe YangGoat manure (GM) is an excellent raw material for anaerobic digestion because of its high total nitrogen content and fermentation stability. Several comparative assays were conducted on the anaerobic co-digestion of GM with three crop residues (CRs), namely, wheat straw (WS), corn stalks (CS) and rice straw (RS), under different mixing ratios. All digesters were implemented simultaneously under mesophilic temperature at 35±1 °C with a total solid concentration of 8%. Result showed that the combination of GM with CS or RS significantly improved biogas production at all carbon-to-nitrogen (C/N) ratios. GM/CS (30:70), GM/CS (70:30), GM/RS (30:70) and GM/RS (50:50) produced the highest biogas yields from different co-substrates (14840, 16023, 15608 and 15698 mL, respectively) after 55 d of fermentation. Biogas yields of GM/WS 30:70 (C/N 35.61), GM/CS 70:30 (C/N 21.19) and GM/RS 50:50 (C/N 26.23) were 1.62, 2.11 and 1.83 times higher than that of CRs, respectively. These values were determined to be the optimal C/N ratios for co-digestion. However, compared with treatments of GM/CS and GM/RS treatments, biogas generated from GM/WS was only slightly higher than the single digestion of GM or WS. This result was caused by the high total carbon content (35.83%) and lignin content (24.34%) in WS, which inhibited biodegradation.http://europepmc.org/articles/PMC3692550?pdf=render |
| spellingShingle | Tong Zhang Linlin Liu Zilin Song Guangxin Ren Yongzhong Feng Xinhui Han Gaihe Yang Biogas production by co-digestion of goat manure with three crop residues. PLoS ONE |
| title | Biogas production by co-digestion of goat manure with three crop residues. |
| title_full | Biogas production by co-digestion of goat manure with three crop residues. |
| title_fullStr | Biogas production by co-digestion of goat manure with three crop residues. |
| title_full_unstemmed | Biogas production by co-digestion of goat manure with three crop residues. |
| title_short | Biogas production by co-digestion of goat manure with three crop residues. |
| title_sort | biogas production by co digestion of goat manure with three crop residues |
| url | http://europepmc.org/articles/PMC3692550?pdf=render |
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