Study of dispersion of brine water into coastal seawater by using a pilot

L. Habet, K. benrachedi

Abstract


Résumé : Les technologies utilisées dans le dessalement des eaux de mer sont accompagnées par diverses impacts sur l’environnement. Plusieurs effects considérés dans les unites de dessalement tells que les imacts marins et la pollution marine. Les unites de dessalement des eaux de mer sont localisées pour apporter un supplement d’eau aux populations et aux diverses applications. La construction des unites dessalement et les infrastructures installées sur les côtes affectent le milieu marin. La grande salinité de la saumure et les produits chimiques utilizes sont dévérsés dans le milieu marin. Ainsi, plusieurs impacts sont causes par la décharge de la saumure. Dans cet article, l’objectif de ce travail consiste d’étudierl’influence de different parameters de dispersion de la saumure comme la position du rejet, le déplacement et le temps. Different points de rejet de la saumure ( P1, P2, P3) sont étudiés horizontalement et verticalement en fonction de la température de l’eau de mer. Les resultants expérimentaux obtenus montrent que la dispersion de la saumure , la meilleure position est celle la plus loine et la plus profonde (P3).

Abstract : The technologies used in water desalination are accompanied by adverse environmental effects. There are several effects to be considered in desalination plants, such as the use of the land, the groundwater, the marine environment and noise pollution. Seawater desalination plants are located by the shoreline, to supply desalted water to the population of the main cities and for other uses. The construction of both the desalination plants and all the required infrastructure in coastal areas affects the local environment. For instance, the high salt concentration in the brine and several chemical products used in the desalination process are returned to the sea. Most impacts on the marine environment arise as a consequence of the brine discharge. In this paper, the objective of this work consists to study the dispersion of the brine discharges and its impact into marine environment. Then, a pilot used to study the different parameters of dispersion such as position of brine and depth and time of dispersion. Different points of brine (P1, P2, P3) were studied horizontally and vertically according to the ambient sea water. Experimental results obtained show that dispersion of brine in best then position of brine point is far and in down sea (P3).

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References


K.Benrachedi ; K.Bensouali ; H.Houchati ,2009,Coupling ultrafiltration with adsorption on activated coffee for use as a reverse osmosis pretreatment” desalination, 239,pp122-129.

Th. Hoepner ; A , 1999,procedure for environmental impact assessment (EIA) for seawater desalination plants, desalination,124,pp1-12.

D. Subba Rao and F. Al-Yamani, The Arabian Gulf in : C.Sheppard, 2000,Ed.seas at the millenium Pergamon, Amsterdam, pp.1-16.

K.Wangnik, 2000, IDA Worlwide desalting plants inventory report No.16 IDA.

S. Lattermann ; T. Höpner;2008, environmental impact and impact assessment of seawater desalination. Desalination,220,pp.1-15.

United Nations Environment Programme- Mediterranean Action Plan MED POL,2003,Sea Water Desalination in the Mediterranean : Assessment and Guidelines, Map Technical Reports series No.139, UNEP/MAP, Athens.

J.J. Malfeito*a, J. Dýaz-Canejaa, M. Farinasa, Yolanda Fernandez-Torrequemadab, Jose M. Gonzalez-Correab, Adoracion Carratala´ -Gimenez b, J.L. Sanchez-Lizaso,2005, Brine discharge from the Javea desalination plant, Desalination, Vol. 185, pp : 87–94.

Jacqueline L Dupavillon, Bronwyn M Gillanders, 2009,Impacts of seawater desalination on the giant Australian cuttlefish Sepia apama in the upper Spencer Gulf, South Australia, Marine Environmental Research.

Villanueva,R ; Moltschaniwskyj,N.A ; Bozzano A,2007, A biotic influences on embryo growth : statolith as experimental tools in the squid early life history. Reviews in fish Biology and Fisheries 17, pp:101-110.

Paulij,W.P ; Bogaards,R.H ; Denuce,J.M.1990, Influence of salinity on embryonic development and the distribution of Sepia Officinalis in the Delta area South Western part of the Netherlands; Marine Biology 107, pp:17-24.

Rachel Einav, Kobi Hamssib, Dan Periyb,2002,The footprint of the desalination processes on the environment, Desalination, Vol. 152, pp: 141-154.

T.Bleninger, G.H. Jirka and V.Weitbrecht.2006, Optimal discharge configuration for brine effluents from desalination plants, Proc. DME (Deutsche Meerwasser Entsalzung) – Congress, 04 - 06. 04.; Berlin.

R. Zimmerman,1999, The Larnaca seawater desalination plant, Environmental impact assessment.

Ahmed Hashim et Munneer hajjaj.2005, Impact of desalination plants fluid effluents on the integrity of seawater, with the Arabian Gulf in perspective, Desalination, Vol.182, pp: 373-393.


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