BIOGAS PRODUCTION FROM FOOD WASTE

Abstract: The energy consumption per person is increasing day by day due to the development of technology and the increase of living standard of people. The reduction in energy obtained from fossil fuels in our country suggests the need to utilize renewable energy sources with economically suitable technologies. In this study, the potential of biogas energy which is one of the renewable and clean energy sources, was investigated through the anaerobic transformation in the climatic conditions from the wastes obtained from the staff and student kitchens in the social facilities of our university. It is aimed that the reactor has low investment, operation and maintenance costs, easy installation and usage features. Classically, most of these wastes are sent to the landfill, composted or burned together with other urban wastes. In the study, the wastes are crushed and homogenized after the inorganic substances in the food waste are distinguished. In the two-phase anaerobic reactor, the feed operation was carried out regularly and continuously at a flow rate of 50 L / day. The total hydraulic retention time in both reactors was 48 days. Volatile fatty acid analysis was performed on samples taken from the methane reactor outlet. These analyzes are important in determining the organic load and hydraulic retention times at the reactor feed. Depending on the content of the food wastes used in the feeding, samples were taken at certain times and total solids and volatile solids analyzes were carried out on these samples. The fertilizer value of liquid wastes to be obtained after digestion can be evaluated by considering the watering of the trees and grass in the campus. In this study, it is aimed to evaluate the organic wastes and to propose solutions to the problems that may arise for application of this system