Potencial de produção de energia elétrica por meio de lodo de ETE no Distrito Federal

Abstract

The increasing volume of sludge generated at Sewage Treatment Plants (STP) brings with it the need to adopt environmentally correct measures aimed at its use or final destination. Besides being popularly used in the recovery of degraded areas, sludge from domestic sewage treatment, because it has a high concentration of organic compounds, can be used to produce electricity. Generally, the production process occurs initially through biogas - obtained in bioreactors - and, later, by turbines or generators that convert the gas to energy to energy. 4 Currently, in the Federal District, about 300 tons of sludge are produced daily in the 15 treatment plants operating in the region, and this volume is stored in the Sludge Management Unit located in the Samambaia Administrative Region, so that the Brasília Sul station has a larger contribution in the volume generated. In this work, the potentiality of the electric power production of the sludge disposed in the bays of the management unit and of the sludge removed from the treatment process of the Brasília Sul Sewage Treatment Station was analyzed. It was verified that the sludge from this station presented better conditions for the production of electric energy, being able to produce about 14,323,780,80 m³ of biogas and resulting in a minimum yield of 4,092,508,80 kWh and a maximum yield of 7,161,890.40 kWh.