Various wastes have been utilized for biogas production and they include amongst others; animal wastes [7-9], industrial wastes [10], food processing wastes [11], plant residues [12,13] etc. Biogas, a product from the decomposition of organic materials by methanogenesis, can be the alternative source of energy for most developing countries. Methanogenesis can be carried out in different types of digesters by anaerobic reaction [14-22].
A model of batch type fixed dome biogas plant is designed and constructed for small amount of biogas production. Percentage of different constituents in biogas is also analyzed. In this study biogas production from cow dung, poultry waste and water hyacinth was investigated. In each case 13.5 kg of raw materials are charged separately in the digester for the production of biogas.