Effect of Feed Loading on Biogas Methane Production in Batch Mesophilic Anaerobic Digesters treating Food Waste

Musa Idris Tanimu; Tinia Idaty Mohd Ghazi; Mohd Razif Harun; Azni Idris
February 2014
International Journal of Chemical & Environmental Engineering;Feb2014, Vol. 5 Issue 1, p39
Academic Journal
Food waste mixture upgraded to a carbon to nitrogen ratio of 30 was co-digested at different feed loadings of 0.5, 1.5, 3.5 and 5.5gVS/L in batch and mesophilic conditions (37°C). Results showed that the production of biogas methane increased with an increase of the feed loading to the digester. A maximum cumulative biogas methane yield of 0.535L/gVS was attained at feed loading of 3.5gVS/L. Generally, it was observed that higher feed loading to the digester led to pH reduction and a decrease in treatment efficiency from 96% to 75%.


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