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标题：Comparison of Biogas Production from Oil Palm Empty Fruit Bunches of Post-Mushroom Cultivation Media (EFBMM) from Semi Wet and Dry Fermentation
其他标题：Comparison of Biogas Production from Oil Palm Empty Fruit Bunches of Post-Mushroom Cultivation Media (EFBMM) from Semi Wet and Dry Fermentation
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作者：Agus Purnomo ; Suprihatin . ; Muhammad Romli 等
期刊名称：Journal of Environment and Earth Science
印刷版ISSN：2225-0948
电子版ISSN：2225-0948
出版年度：2018
卷号：8
期号：6
页码：88-96
语种：English
出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：The high content of organic substances (25.56%) in solid waste post-mushroom cultivation (EFBMM) has the potential to be processed into biogas. Comparative research of biogas production from EFBMM with semi wet and dry fermentation aims to know the potential of biogas using 20% cow dung solution (inoculum) which is mixed by way of circulation. Semi-wet anaerobic digestion is performed on WC/TS ratio (4.0 - 5.7) and dry digestion is performed on the WC/TS ratio (1.5 - 3.5). Anaerobic fermentation method was developed using a circulation system by observing the physical-chemical characteristics of raw materials and products produced. The results showed that the fermentation of dry and semi-wet fermentation for 65 days decreased the C/N ratio by 5.27% and 19.31%, respectively. Biogas production in semi-wet fermentation produces 18.60 L/kg of EFBMM biogas with CH4 131.85 L/kgVSr gas productivity with biogas composition 40.69% CH4, 49.96% CO2 and 7.58% nitrogen. In dry fermentation, biogas produced 5.98 L/kg EFBMM with CH4 38.71 L/kgVSr gas productivity and biogas composition 35.58% CH4, 46.12% CO2 and 17.31% nitrogen. Semi-wet and dry fermentation process produces carbon (released as biogas) respectively 3.90 kgC (26.88%) and 3.40 kgC (23.44%). The result of lignocellulose analysis showed that dry fermentation of EFB using fungus media was able to degrade 6.00% hemicellulose, 10.60% cellulose and 6.74% lignin. Where as semi-wet fermentation was able to degrade 9.26% hemicellulose, 13.02% cellulose and 9.28% lignin. Imaging results with SEM show the fermentation process alters the EFBMM lignocellulosic morphology structure into more open, hollow and fragile textures. Keywords: biogas, EFBMM, WC/TS ratio
关键词：biogas; EFBMM; WC/TS ratio