Investigating the Efficacy of Oily Water Treatment at a De-Oiling Facility in the Northern Industrial Center of CINA, Hassi Messaoud: A Statistical Physics Assessment

Author:

Sid Asma Nour El Houda1,Mokrane Fedoua2,Hadj Mimoune3,Chagour Nihad4,Atamnia Amira4,Boudoukhani Meriem5,Tahraoui Hichem67ORCID,Kebir Mohammed8ORCID,Zhang Jie9ORCID,Amrane Abdeltif10ORCID

Affiliation:

1. Department of Chemical Engineering, Faculty of Engineering Processes, University of Salah Boubnider Constantine 3, Constantine 25000, Algeria

2. SONATRACH XP DP, Hassi R’mel 03000, Algeria

3. Department of Refening, Faculty of Hydrocarbons and Chemistry, University Boumerdes, Boumerdes 35000, Algeria

4. Department of Engineering Processes, Faculty of Technology, University of 20 Aout 1955, Skikda 21000, Algeria

5. LME—Material and Environmental Laboratory, University of Medea, Medea 26001, Algeria

6. Laboratoire de Génie des Procédés Chimiques, Department of Process Engineering, University of Ferhat Abbas, Setif 19000, Algeria

7. Laboratory of Biomaterials and Transport Phenomena, University of Medea, Medea 26000, Algeria

8. Research Unit on Analysis and Technological Development in Environment (URADTE-CRAPC), Bou-Ismail 42000, Algeria

9. School of Engineering, Merz Court, Newcastle University, Newcastle upon Tyne NE1 7RU, UK

10. Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR—UMR6226, F-35000 Rennes, France

Abstract

Environmental protection is becoming a primary objective when choosing processes and technologies for treating oily waters resulting from hydrocarbon production. The focus of treating oily waters is to eliminate contaminants from effluents before discharging them into the receiving environment while adhering to discharge standards. Our work aims to analyze the treatment process for oily waters in the API unit of the North Industrial Center (CINA), which involves a physical–chemical treatment using activated silica and Kurifix. The study aims to improve the treatment process used for oily water treatment to ensure water conservation for reuse. To enhance the CINA-HMD oily water treatment process, we created coagulants with different doses (C1–C6) using sodium silicate, activated silicate (sodium silicate + sulfuric acid), distilled water, Kurifix, and an oxygen scavenger while measuring pH, HC (hydrocarbon), and SS (suspended solids) levels. Coagulation and flocculation processes were used to remove suspended solids and hydrocarbons from the water. The results show that the coagulant used reduces suspended matter and hydrocarbon content and increases pH. The best treatment is achieved with a coagulant prepared with distilled water, 5% sodium silicate, and 2% sulfuric acid. The optimal dose of coagulant is 16 ppm. Automatic dosing provides better efficiency than manual dosing. The study recommends continuous verification of chemical preparation and injection, periodic cleaning of settling tanks, and monitoring of oily water entering the station.

Publisher

MDPI AG

Subject

Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry

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