Anaerobic co-digestion of food waste for biohydrogen production

• Main Authors: Jamil, Z., Yunus, N.A.M., Suffian, M., Ibrahim, S.
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: T Technology (General); TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.um.edu.my/9409/1/Anaerobic_co-digestion_of_food_waste_for_biohydrogen_production.pdf; http://eprints.um.edu.my/9409/; http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6560133&tag=1
• Institution: Universiti Malaya

The objective of this study was to find the optimum conditions for anaerobic co-digestion of food waste and sewage sludge and hydrogen (H 2) production. The selected parameters for optimization of H 2 production (e.g. temperature, initial pH, inoculum size) were analysed using Response Surface Methodology with Full Factorial Design. Two types of substrates were tested; food waste as a sole substrate and food waste mixed with palm oil mill effluent (POME) at volume ratio1:1. The optimized conditions for food waste as a sole substrate were pH 4.5, temperature of 35°C and inoculum size of 20 (v/v), with maximum predicted cumulative hydrogen production (MPCHP) of 0.22 ml H2/ml substrate. On the other hand, for food waste mixed with POME, pH 4.5, temperature of 35°C and inoculum size of 20 were the optimum conditions with MPCHP of 0.26 ml H 2/ml substrate. Subsequently, verification experiments at optimal parameter values yielded cumulative H2 of 0.28 ml H2 /ml substrate for food waste only, and 0.33 ml H2/ml substrate for food waste mixed with POME. © 2013 IEEE.