Assessing the efficiency of Desalting unit and Treatment Plant in removing some heavy Metals from the Effluent Refinery of Banyas Company


Abstract in English

This study aims to determine the concentrations of some heavy metals that are present in the crude oil and in liquid waste of the crude oil desalting unit .The extraction method (liquid-solid) is used for concentrating and extraction these compounds from the saltwater samples .Samples were collected from the unit’s discharging points and from the subsequent treatment stages .A suitable analytical method was used to extract these metals from both of crude oil and the oil refineries᾿ liquid wastes. The objective of this study is to observe the fate of these wastes from the discharging points of desalting unit and through physical – chemical – biological treatment stages and dawn to the receiving water (Mediterranean sea). The results showed that Syrian crude oil contains a combination of heavy metals which includes : (Vanadium – Nickel – Iron – Zinc – Manganese – Copper – Cadmium – Lead - Chromium and Cobalt) .Vanadium showed the highest concentration followed by Nickel and Iron subsequently ,the total efficiency of the treatment plant achieved the following efficiencies : 41.06% (Vanadium), 44.92% (Nickel) and 39.34% ( Iron) ,then the concentration of these discharges where compared with those in marine system to show the possible adverse effects of these compounds on the surrounding biosphere.

References used

Nicholas,P.C. ; Paul,R. Best Practices in the PetroleumIndustry .Handbook of Pollution Prevention and CleanerProdection.ELSEVIER,2009, 45-47
Pollution Prevention and Abatement Handbook , WORLD BANK GROUP,Volume 1 Washington ,D.C. July 1998
Dando,D.A. ; Martin ,D.E .a guide for reduction and disposal of waste from oil refineries and marketing installations , CONCAWE report no. 6/03 Brussels, November 2003
Afshin, P. ; Toraj, M. Wastewater treatment of desalting units . Desalination, Volume 222,Issues 1-3(2008), 249–254

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