Design and Production of Methane Gas from Food Waste Using Anaerobic Digestion
Journal Title: GRD Journal for Engineering - Year 2016, Vol 1, Issue 8
Abstract
Biogas is one of beneficial and essential gas, which is widely used for the electricity, heat and transportation fuels. Biogas can be produced by digestion pyrolysis or hydro gasification. Digestion is a biological process that occurs in the absence of O2 and presence of anaerobic organisms. The container in which the digestion takes place is called digester. In this work, the Biogas was produced through anaerobic digestion process at atmospheric pressure and the best temperatures between 30 - 65°C. When the temperature is below 15°C almost no gas is made. In this experiment, the food waste was incubated with sludge water in a tightly sealed container. Aerobic decomposition occurs first and CO2 was produced while oxygen was consumed, once the oxygen has been depleted, the methanogen bacteria start growing and consumes the CO2 to produce biogas. Therefore, one should expect an initial increase in CO2 production followed by a decrease in CO2 and a steady increase in methane production. The biogas obtained at the end of the reaction will be a mixture of CO2 and CH4. The CO2 can be monitored using a CO2 detection probe. The methane can be identified by burning it. The methane gas was collected in the plastic bottle to measure it by water displacement and then test it by using a Bunsen burner.
Authors and Affiliations
Ms Awasif Jamil Maskhoot Al Saadi, Dr. Lakkimsetty Nageswara Rao
Keywords
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