Production and Areas of Use of Gas Biofuels and Optimization of Bioprocess Parameters Affecting the Production Efficiency

The importance of renewable energy sources is increasing day by day due to the reasons such as fossil fuel reserves being on the point of exhaustion and trying to minimize the negative effects thereof on the environment. In biogas processes, hydrogen and carbondioxide gases are released through the degradation of organic matters by acidogenic bacteria with fermentation and the conversion thereof into organic acids. In the second stage, organic acids are transformed into acetic acid, hydrogen and carbondioxide by acidogenic bacteria. While methane bacteria use the hydrogen they need, they also remove the hydrogen that affects the acidogenic bacteria negatively. Biohydrogen production processes, on the other hand, the system is processed by applying heat pretreatment to anaerobic fermentation bacteria for 20-45 mins and between 90-105 0C. In the first stage, organic wastes with high carbohydrate ratio are degraded by heat pretreated anaerobic fermentation bacteria into organic acids, hydrogen and carbondioxide. In the second stage, the organic acids produced in the first stage are degraded to hydrogen and carbondioxide with fermentative bacteria. In this study, optimization of the bioprocess parameters affecting the production, use and production efficiency of gas biofuels is presented