RT Journal Article
T1 A New Technique for Improved Use of Thermal Energy from Waste Effluents
A1 Magide Ameijide, José Manuel
A1 Varela Rodríguez, Hiram
A1 López Fabal, Adolfo
K1 Residual energy
K1 Valorization
K1 Drying
K1 Vacuum
K1 Multiple-effect evaporation
K1 Blood
K1 Blood meal
K1 Slaughterhouse
AB Energy sustainability and environmental protection in general are at the heart of engineering and industry discussions. Countless efforts have been devoted to improving the energy efficiency of industrial processes and specifically to harnessing their waste energy sources. One such source is waste from agro-industrial processes, which is frequently characterized by increased temperatures and high polluting potential. There are multiple available choices for exploiting energy from such waste, but this paper proposes a new alternative technique that substantially improves the efficiency. Based on the technology of leveraging a hot liquid effluent for heating a process fluid, this system introduces a third liquid to be revalorized by drying that is placed in between the hot and cold liquids. By adding stirrers inside the heat exchanger, the thermal resistance of the third fluid is reduced to a negligible level. Thus, this system has almost the same advantages as the previous one, but with the added benefit that it allows drying of a third fluid. One of the specific applications of this proposed technology is using heat from waste effluents to obtain dried food products. In the present work, it was used to dry slaughterhouse blood to obtain so-called “blood meal”, a product with a high added value that is used as pet food or organic fertilizer, and also has many other industrial applications. As shown here, the new technique outperforms existing alternatives in terms of energy efficiency and economic profitability
PB MDPI
YR 2020
FD 2020
LK http://hdl.handle.net/10347/21841
UL http://hdl.handle.net/10347/21841
LA eng
NO Magide-Ameijide, J.M.; Varela-Rodríguez, H.; López-Fabal, A. A New Technique for Improved Use of Thermal Energy from Waste Effluents. Agronomy 2020, 10, 97
NO This research was partiality supported by the Strategic Researcher Cluster BioReDeS, funded by the Regional Government Xunta de Galicia, under the project ED431E 2018/09
DS Minerva
RD 27 abr 2026