Related Experiment Video
Updated: May 11, 2026

Measuring Biomethane Potential of Food Scrap Waste Anaerobically Co-Digested with Waste-Activated Sludge Using Respirometry
Published on: April 26, 2024
Biochemical methane potential of two-phase olive mill solid waste: influence of thermal pretreatment on the process
B Rincón1, L Bujalance, F G Fermoso
1Instituto de la Grasa (CSIC), Avda. Padre García Tejero, 4.41012 Sevilla, Spain.
Abstract:
The effect of thermal pretreatment on two-phase olive mill solid waste was evaluated by chemical oxygen demand solubilisation and biochemical methane potential (BMP) tests. Temperatures of 100, 120, 160 and 180°C were applied during 60, 120 and 180 min for each temperature studied. The highest chemical oxygen demand solubilisation after pretreatment (42%) was found for 120 and 180°C during 180 min in both cases. These two conditions were selected for the BMP tests. BMP tests showed two different stages: a first exponential stage and a sigmoidal zone after a lag period. No influence of the pretreatment was observed on the kinetic constant of the first-stage. Clear difference was observed in the maximum methane production rate of the second stage, 76.8 mL CH4/(g VS day) was achieved after pretreatment at 180°C (180 min), value 22% and 40% higher than that obtained for the untreated and pretreated OMSW at 120°C, respectively.
Related Concept Videos
Microbes and Methanogenesis
Microbial Bioremediation of Hydrocarbons
Environmental Applications of Microorganisms

