Freeze concentration for the valorization of agro-industrial waste effluents
- Uald Lamkaddam, Imane
- Joan Colón Jordà Director
- María Isabel Mora Garrido Co-director
Defence university: Universitat de Vic - Universitat Central de Catalunya
Fecha de defensa: 10 October 2022
- Symeon Alexandros Malamis Chair
- Lidia Paredes Barro Secretary
- Lara Pelaz Pérez Committee member
Type: Thesis
Abstract
The main purpose in this thesis is to implement and demonstrate the technical feasibility of an innovative technology to concentrate and/or recover valuable compounds from agro-industrial waste effluents or by-products on one side, and to deliver a clean effluent that can be reused for agricultural purposes on the other. The freeze concentration of a selection of different raw materials was tested based on regional issues related to the sector in Catalunya: Cheese whey, pig slurry, concentrated liquid fraction of digestate and a hyper saline solution from meat processing industry. The abovementioned effluents are generated in substantial amounts and have high-water content which burden transportation cost to other regions. And effectively, within this thesis we could concentrate the nutrients in smaller volume and avoid the cost side-effect of transportation, and recovery water to be reused in another hand from agro-industrial waste effluents.