ANIMAL BLOOD UTILIZATION FOR BIOMETHANE PRODUCTION THROUGH PRETREATMENTS AT LAB SCALE

Abstract

High levels of waste produced by slaughterhouses are harmful to the environment and are a possible source of numerous pathogens dissemination. There is no effective system so far to control the effluent discharge from the slaughtering processing. Daily energy demands rise, but energy sources, particularly fossil fuels, are becoming more and more depleted. Offering alternative energy sources like biogas is one way to solve these issues. The productivity of the industrial sector can be boosted through effective management, which also minimizes environmental issues. The purpose of this study is to generate biomethane using animal blood as a substrate exposed to different pretreatments (NaOH/Sonication, NaOH/Heat, Only Sonication, H2O2/ Sonication and blank substrate). Biomethane production was carried out by Anaerobic Digestion in a lab scale digester. Anaerobic digestion can convert organic materials of animal blood into biogas. Results elucidated that NaOH/Sonication pretreatment was the most efficient and showed the highest percentage of methane production (86%) followed by other pretreatments i.e., NaOH/Heat (85%), Only Sonication (83%), H2O2/ Sonication (82%) and blank substrate (76%). Chen and Hashimoto model of kinetics was found to be the most feasible model of kinetics for the current study.