Characterization of Biogas Production from Anaerobic Digestion of Animal & Plant Wastes

Abstract

Abstract — The negative impact of the increased use of fossil fuels for energy generation and consumption has reached a global dimension and can no longer be over looked. All efforts are now being geared towards an alternative source of energy, renewable in nature and more environmental friendly in use. This study investigates the production of biogas – a renewable energy from the anaerobic digestion of three different types of biodegradable wastes (Cassava peelings and poultry droppings, Beans waste and poultry droppings, Cassava peelings and beans wastes) as an alternative to fossil fuels for energy consumption. The study was carried out using a 0.1m 3 capacity biogas digester constructed to investigate the anaerobic digestion in generating biogas. The experiment was batch operated and daily gas yield from the plant was monitored for 24 days. During this period, many operation factors were monitored to determine the effect each of them has on the biogas generation. These factors monitored are temperature changes, Pressure changes, pH changes, changes in alkality, Cassava peelings and poultry dropping generated the highest maximum biogas of 0.035m 2 /kg/day at a PH value of 7.35 on the 19 th day. This was followed by poultry droppings and beans mixture. Cassava peelings and beans waste had the least volume of biogas. This treatise assets that biogas is not only a renewable energy source but has a dual function of waste management in the course of its production.