Combinatorial Effect of Process Parameters on the Rate of Biogas Production and Rate of Substrate Degradation Following Anaerobic Digestion of Food Waste and Rumen Content

In this study, the combinatorial effect of process parameters on rate biogas production and substrate degradation following anaerobic digestion food waste rumen content using mixture design (Combined I-optimal) within Design Expert (version 13) environment. Results showed that production, bio-methane inside 100 bio-digesters ranged from 0 to 38.04 L/Kg VS, 23.14 VS 79.20 %, respectively. The highest (38.04 VS), (23.14 VS) (79.20 %) were observed in bio-digester 57 at (0.30 kg), water (0.40 temperature (34.0oC), pH (9.0), number agitation per day (4 time/day) retention time (32 days), biogas/bio-methane can vary, with varying factors/parameters processes. Bio-digesters co-digestion appeared be significantly more productive terms compared mono-digestion either or regardless presence other boundaries investigation.