The Production of Biogas Using Kitchen Waste

Abstract

Kitchen waste is the best alternative for biogas production in a community level biogas plant. It is produced when bacteria degrade organic matter in the absence of air. Biogas contains around 55-65% of methane, 30-40% of carbon dioxide. The calorific value of biogas is appreciably high (around 4700 kcal or 20 MJ at around 55% methane content). The gas can effectively be utilized for generation of power through a biogas based power-generation system after dewatering and cleaning of the gas. In addition, the slurry produced in the process provides valuable organic manure for farming and sustaining the soil fertility. In this paper, an attempt has been made to test the performance of different ratio of kitchen waste in a metal made portable floating type biogas plant of volume capacity 0.018 m3 for outdoor climatic condition of New Delhi, India . Each of the biogas plant 30 Kg slurry capacity in batch system for all measurement. During these period, the temperature, solar radiation and relative humidity have been measured. We have also analysed the constituent of biogas, pH, volume and rate of biogas production at different level of temperature observation on daily basis. Here we also compare the rate of biogas production from kitchen waste with the other energy sources used for cooking purposes like LPG, Kerosene and Coal.