Quantifying the efficiency of a mono-port diffuser in the dispersion of brine discharges

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Title: Quantifying the efficiency of a mono-port diffuser in the dispersion of brine discharges
Authors: Loya-Fernández, Angel | Ferrero-Vicente, Luis Miguel | Marco-Méndez, Candela | Martinez-Garcia, Elena | Zubcoff, Jose | Sánchez-Lizaso, José Luis
Research Group/s: Biología Marina | Recursos Hídricos y Desarrollo Sostenible | Web and Knowledge (WaKe)
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada
Keywords: Reverse osmosis | Brine discharge | Ocean outfall | Diffuser | Mixing zone models | Far field
Knowledge Area: Zoología | Estadística e Investigación Operativa
Issue Date: 1-Apr-2018
Publisher: Elsevier
Citation: Desalination. 2018, 431: 27-34. doi:10.1016/j.desal.2017.11.014
Abstract: Reverse-osmosis seawater desalination processes produce a hypersaline effluent waste (brine) which is usually discharged back into the sea via an underwater outfall. Brine discharges can cause environmental problems due to their high salt concentration, but the effects can be minimised by installing a diffuser structure at the end of the pipeline. In May 2010, a mono-port diffuser was installed at the Nuevo Canal de Cartagena desalination plant pipeline (located in Murcia, Spain) in order to increase effluent dispersion. The aim of this paper was to characterise the brine-plume dispersion throughout a series of oceanographic surveys that were carried out before and after the diffuser installation (2006–2011), and to quantify the effects of the diffuser on the behaviour and dilution rate of the effluent. The results of six years of operational monitoring were also compared with simulations predicted by a numerical mixing model simulation (CORMIX 1), obtaining high concordance with field data. After the diffuser installation, both field data results and model simulations showed a strong increase in the dilution rate of the brine plume, and a significant reduction in the size of the affected area.
Sponsor: This work was funded by “Mancomunidad Canales del Taibilla” (MANCOMUNIDADCANALES2-9D, MANCOMUNIDADCANALES4-08D).
URI: http://hdl.handle.net/10045/73992
ISSN: 0011-9164 (Print) | 1873-4464 (Online)
DOI: 10.1016/j.desal.2017.11.014
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Published by Elsevier B.V.
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.desal.2017.11.014
Appears in Collections:INV - BM - Artículos Científicos / Scientific Papers
INV - Recursos Hídricos y Desarrollo Sostenible - Artículos de Revistas
INV - WaKe - Artículos de Revistas

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