EVALUATION OF INDUSTRIAL WATER QUALITY AND THE EFFICIENCY OF THE DESALINATION UNIT IN REMOVING SOME HEAVY MINERALS IN EFFLUENTS OF IRAQI NORTH OIL COMPANY

Abstract

Improving the quality of industrial water specifications is important in the operational units of oil companies, so this research aims to study the specifications and quality of industrial water used in crude oil primary treatment units and the efficiency of the desalination unit. Water samples were collected from the Zab River, a water source for the company, treated water used in oil units, salt removal unit discharge water, tank drainage, industrial wastewater and injection water in the fields. Some heavy elements (Iron, Vanadium, nickel, Chromium and lead) were estimated. By using Atomic Absorption Technology (ASS). The alkaline elements (sodium, calcium and potassium) were determined using the Atomic Emission Technique (AES), where the results were for sodium (1320-2.16) ppm, calcium (17.06-2.15) ppm, and potassium (213.5-2.24) ppm. The results we obtained for Iron were between (10.7-0.17) and for Chromium between (0.32-0.11) with concentrations ppm, and they did not show any concentration of nickel, Vanadium and lead in ppm concentrations. The pH function was between (8 - 6) and electrical conductivity (46400-394) µs. The total hardness (20200-109) ppm and total dissolved solids (24128-146) ppm.