Optimisation of wastewater treatment at ecoparc 2

Identifier:  TDX:2787

Handle: https://hdl.handle.net/20.500.11797/TDX2787

Authors:  Albacete Garcia, Maria Eloisa

Abstract:
Ecoparc 2 is a company dedicated to the treatment of different types of municipal solid waste (kitchen waste, packaging waste and non recyclable mixed waste). It has been in operation since 2004 and is constantly improving, innovating and optimising its processes. The site has a MBR wastewater treatment plant, which was designed for lower concentrations than those that it is currently treating. Although it was expanded, its performance needs to be revised and optimized to assure a reliable operation. Anaerobic digestion contributes more than 75% to the total wastewater produced, and it has a high COD and N-NH3 concentration (40.000 mg/l COD and 4.500 mg/l N-NH3). The possibility of solids separation by centrifugation and membranes will be studied to reduce the sludge viscosity. On the other hand, also thermal hydrolysis and stripping will be studied to improve the degradability of the anaerobic digestion wastewater and to decrease the N load to the MBR plant. Finally, in order to reduce the drinking water network consumption and the total amount of wastewater produced, the internal recycling of wastewater will be evaluated.