Performance of Kinetic Models on Prediction of Biogas From Food Waste With/Without Pretreatment

ABSTRACT This study assesses the performance of different kinetic models for predicting biogas yield from anaerobic digestion (AD) and co‐digestion of food wastes (FWs) with/without garden waste under different pretreatment scenarios (thermal, extrusion, and sequential). Results show that cone and hydrolysis constant increase, whereas lag phase decrease in pretreated FW, indicating enhanced hydrolysis and faster biodegradability exhibiting better performance. On other hand, MFW/MFGW shows opposite trend due to its complex nature. Modified logistic showed better performance in all samples and CM in MFW/MFGW. Despite its better performance, superimposed exhibited inaccuracy in biogas yield. In conclusion, kinetic models enhance understanding the performance of AD of samples studied under various pretreated conditions.