Technologies for valorization of digestates

REPSOL SA is looking for innovators/experts who could provide them onboard thought leading solutions specifically in Bioeconomy sector. In particular:

Challenge Description
The challenge derives from the application of new European Directives for Waste and Fertilizer. New Waste legislation aims at increasing the separate collection of organic waste (biowaste), therefore progressively minimizing the amount of organic fraction in mixed waste. Valorization of organic waste to biogas by means of anaerobic digestion will be considered as material valorization (recycling) only if the digestate generated can be considered as a product (therefore excluding the cases in which it is sent to landfill or incineration). On the other hand, the new Fertilizer Directive will limit the use of digestates as fertilizers only for those cases in which stem from a limited list of wastes, explicitly excluding the case of organic waste not separately collected at source (i.e. OFMSW from mixed MSW). The sector needs to find new pathways for the valorisation of anaerobic digestion digestates, especially those obtained from mixed wastes.


Technical requirements
The technologies proposed should allow:
- Material valorization of MSW (preferentially).
- Provide an economic revenue (or at least allow avoiding landfill taxes) so that business case is attractive.
- CO2 emissions reduction of the pathway.
- Preferred: TRL 6 or higher. Solutions with lower TRL could be validated through Proof of Concept schemes.


Constraints
Solutions based on hydrothermal carbonization and/or gasification will be excluded


CONTACTS:
info@wheesbee.eu