Biogas production from oil palm empty fruit bunches of post mushroom cultivation media

2nd International Conference on Biomass: Toward Sustainable Biomass Utilization for Industrial and Energy Applications

生物科学;工业技术;能源学

Purnomo, Agus^1 ; Suprihatin^2 ; Romli, M.^2 ; Hasanudin, Udin^3

Natural Resources and Environmental Management Studi Program, Bogor Agricultural University and Departement of Health Analyst, Health Polytechnic of Tanjungkarang, Indonesia^1

Department of Agro-Industrial Technology, Bogor Agricultural University, Bogor

16680, Indonesia^2

Department of Agro-Industrial Technology, Faculty of Agriculture, University of Lampung, Bandar Lampung

35145, Indonesia^3

关键词: Anaerobic digester;    Circulation systems;    EFBMM;    Empty fruit bunches;    Fermentation conditions;    Mushroom cultivation;    Oil palm empty fruit bunch;    WC/TS ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/141/1/012024/pdf
DOI  :  10.1088/1755-1315/141/1/012024

来源: IOP

【 摘 要 】

The Empty fruit bunches are one of the palm oil industry wastes, which can be used for mushroom cultivation. Post-cultivation of mushroom from former EFB-mushroom media (EFBMM) has the potential to be processed into biogas. The purpose of this research was to examine optimum co-digestion conditions for biogas production of EFBMM.The research was carried out in an anaerobic digester with three different conditions - dry fermentation (Water content (WC)/Total Solid (TS) ratio 1.5 - 3.5), semi-wet fermentation (WC/TS ratio = 4.0 - 5.7) and wet fermentation (WC/TS ratio> 9.0) conditions. Digester of capacity 50L was used. Fermentation was done using 20% cow feces as inoculum which then added with circulation system for 70 days. The results showed that optimum biogas production were produced in semi-wet fermentation conditions (WC/TS ratio = 4). It was produced 37.462 liters (2.420 liters CH4/Kg Volatile Solid (VS)) of biogas with methane contain about 26.231%. Total volume of inoculum during process was 19.6 liters (1: 4 w/v) with absorbed TS inoculum ratio, TS/I = 0.4 (1:2.5 w/v). The result of research also showed that biogas which was produced from control about 2.865 liters (0.041 liters CH4/KgVS), with TS absorbed inoculum ratio, TS/I = 0.5 (1: 5w/v).