Energy Recovery Analysıs of A Biomass Type of Installed Waste Water Treatment Plant

Abstract

Energy production can also be obtained from plant, animal or sometimes human material, referred to be the biomass technology. The biomass raw material can be obtained from purposely grown energy crops, waste from food crops, wood or forest residues, horticulture, animal farming, food processing, or human waste from sewage plants. In this study, energy recovery analysis of an installed waste water treatment plant was conducted. The physical and chemical analyses of energy recovery that can be obtained from waste water treatment plant were clarified. In this regards, parameters including daily wastewater inlet water flow rate, wastewater inlet water 24 hourly average temperature, wastewater inlet water 24 hourly pH average, wastewater inlet water 24 hourly conductivity average, gas generator daily gas consumption, diesel generator daily energy generation, daily energy consumption from the city line, gas generator energy generation, total energy consumption of the water treatment plant, and daily gas generation of the treatment plant were identified. The plant has the duty of providing water treatment, so it is certain that noteworthy energy consumption in the plant can occur is an expected situation. However, the point that how much of the energy can be regained by the biomass technology provided by the burning processes conducted on the human waste is important. Namely, it is reported in this study that 78.29% of the total energy consumed by the plant was regained by these processes occurred in the treatment facility. On the other hand, this amount of recovered energy was reported to correspond a total of 14.200 GWh in this installed plant of Turkey. Apart from the amount of the recovered energy, the discharge of the amount of the methane gas which is responsible of the biomass energy generation was also analyzed according to the considered physical and chemical parameters. For instance, the analyses have shown that the increase of the waste water temperature causes decrease on the amount of the methane gas generation. On the other hand, the conductivity and the degree of acidity increase resulted the increase of the amount of the methane gas production.