Biogas cogeneration in a Waster Treatment Plant Madrona in Segovia

The process starts with the generation of sludge from the purification of wastewater. In the digester process takes part the digester and 3 exchanges-agitators.

Biogas cogeneration in a Waster Treatment Plant Madrona in Segovia

The process starts with the generation of sludge from the purification of wastewater. The sludge is dived in an anaerobic digester (HETAMIX). The digester system makes a heating of the sludge without oxygen, with a controlled injection of the generated biogas, and the pressure.
In the digester process takes part the digester, 3 exchanges-agitators, where the heating of the sludge is made by one hand through hot water with 60-80ºC and by the other hand through the injection of biogas. The hot water is produced from two 525 kWt boilers adapted to work with mixed-burner biogas or fuel-oil. Because of the burner is not modulating, the only regulation is the switch-on and switch-off of the boiler-burner.