The main objective of Ecodigestion LIFE is to increase the production of renewable energy, as biogas, in order to contribute to large scale reduction of greenhouse gas (GHG) emissions by recycling wastes from the food industry. This project gives a new approach to the development and implementation of an innovative technology for the dosage automation and joint digestion of industry wastes and sludge in the wastewater treatment plants (WWTP) digestion stage. The proposed system is based on the continuous measurement of the quantity and composition of biogas produced, which will result in increased recovery of waste instead of its elimination, a greater energy self sufficiency in the plant and a reduction of treatment costs for of the waste producer. All this guarnteeing the stability of the digestion process.

Most of agri-food industry wastes show high organic matter content, what makes their treatment expensive and difficult. Therefore joint co-digestion of this type of waste with WWTP sludge arises as a good alternative, since it manages to transform some of the wastes into by-products contributing to biogas generation.

This project deals with a double environmental problem: first, the scarcity of fossil fuels and its close relationship with the production of greenhouse gases, and on the other hand, the growing production of highly polluting organic waste and their mismanagement as wastes.

Among the specific objectives of LIFE Ecodigestion, the following stand out:

  1. Design and implementation of two prototypes, one with the new technology and the other with conventional technology.

  2. Assessment and validation of the dosage technology.

  3. Contribution to the Spanish objective of electricity generation through the use of biogas from sewage sludge by 2020 (Plan of renewable energies in Spain 2011-2020) and the European rate of energy from renewable sources (Directive 2009/28 / EC).

  4. The use of the resources contained in waste and sludge treatment in accordance with the National Plan of wastewater sewage sludge (2008-2015), the integrated National Plan of waste 2007-2015 and the Directive 2008/98 / EC, prioritizing recycling over waste disposal in accordance with the treatment hierarchy in this Directive: prevention > preparation for reuse > recycling > other recovery > disposal.

  5. Increase reliability of energy supply and reduce EU greenhouse gas emissions.

  6. Dissemination and transfer of results to society and stakeholders, especially to producers of wastes that can be recycled and WWTP operators.

  7. Transfer of results to society and stakeholders.