OPTIMIZATION OF BIOGAS PRODUCTION FROM ORGANIC FRACTION OF MUNICIPAL SOLID WASTE: EXPERIMENTAL TEST USING LIQUID FROM WASTE FERMENTATION
MAHAMADI NIKIEMA 12, NARCIS BARSAN 2*, MARIUS K. SOMDA 1, DESIRE TRAORE 1, DAYERI DIANOU 3, VALENTIN NEDEFF 2, ALFRED S. TRAORE 1 1. Universté Ouaga I, Pr Joseph KI-ZERBO, Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN), 03 BP 7131 Ouagadougou 03, Burkina Faso
2. “Vasile Alecsandri” University of Bacau, Department of Environmental Engineering and Mechanical Engineering, 157, Calea Marasesti, 600115, Bacau, Romania
3. Centre National de la Recherche Scientifique et Technologique (CNRST), 03 BP 7192 Ouagadougou 03, Burkina Faso
*Corresponding author: narcis.barsan@ub.ro
The present study aimed to produce biogas using liquid from OFMSW fermentation. In this study the physic-chemical parameters of liquid from OFMSW were determined. Anaerobic digestion using liquid from OFMSW and 2 % (w/v) of OFMSW as substrate load was carried out both in batch anaerobic digesters during 25 days. The pH, ammonium nitrogen and gas (CO2, CH4 and H2S) were followed during anaerobic digestion. The concentration of ammonium nitrogen ranged respectively 3 g NH4-N·L-1 to 6 g NH4-N·L-1 and 5 g NH4-N·L-1 to 9 g NH4-N·L-1 in anaerobic digestion from liquid from OFMSW and 2 % of OFMSW. This technology has permit to obtain good quality of biogas (57 % CH4, 3 % CO2 and 20 ppm H2S) in a short time of 20 days.
