Combine Eco-conception Standard and TRIZ Method in Eco- Innovation Applied for Drying Olive Cake.

The objective of this research is optimizing a process of recycling residues called olive cake (stones) for renewable energy use and Pomace for animal feed industry use. This study includes a drying and separation of solid residues from pulp and store final product for an expedition to recommended user. Drying will proceed continuously in parallel with the existing production process of olive oil. The existence of technical constraints relating to high humidity and economic limitations related to logistics and energy consumption in order to make the residues usable leads us to consider a study of an integrated economic process to respond to this issue. In the literature there are drying solutions to be able to recover the residues but the cost of this operation remains in most cases a constraint which limits the reuse of vegetable waters. Among the techniques there is a centrifugation, drying by gas dryers and drying by a fluidized bed. With the use of eco-design standard and TRIZ method as combined approach we solve this problem and present an economic system as solution to recover the residues of the olive oil "olive cake" in view of their reuse in the energy supply for the case of the pomace and in industry for pulp. The design include the drying of pomace and pulp before storage for shipment to the recommended uses. This separation will be carried out in continuous mode in parallel with the existing production process. In our thesis we introduce an innovation to solve a problem of drying residues by considering constraints of the cost and the technical feasibility of solution without neglecting the environmental aspect.