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Electrokinetically Assisted Oil-Water Phase Separation in Oily Sludge with Implementing Novel Controller System

Title:

Electrokinetically Assisted Oil-Water Phase Separation in Oily Sludge with Implementing Novel Controller System

Elektorowicz, Maria ORCID: https://orcid.org/0000-0002-2737-3128 and Jahromi, Arash Fellah (2018) Electrokinetically Assisted Oil-Water Phase Separation in Oily Sludge with Implementing Novel Controller System. Journal of Hazardous Materials . ISSN 03043894 (In Press)

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Official URL: https://doi.org/10.1016/j.jhazmat.2018.07.032

Abstract

Upstream and downstream petroleum industry generate of significant amounts of oily sludge per day. On the other hand, a disposal of such sludge requires expensive pre-treatments following local regulations. Conventional processes, like centrifugal separation provide sludge volume reduction and water extraction. However, water-in-oil emulsion requires extra stages for phase separation, which overall increases the costs. Therefore, electrokinetically (EK) assisted oil-water phase separation method was considered. In this study, a novel implemented controller, installed into the EK system, permitted to increase the length of exposure time to electrical field, while a significant decrease of energy consumption was observed. The controller, implemented based on Percolation Theory and applied to a linear horizontal EK system, showed enhanced sludge demulsification and improvement the quality of separated fractions. TGA analysis showed a superior quality of liquids extracted by EK with controller comparing to liquids without controller or generated by centrifuging process. A reaction rate with respect to temperature to assess the presence of water in the oil was also defined. The method, shown in this paper, advances the oil-water phase separation and permits for better oil recovery and sludge volume reduction.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Building, Civil and Environmental Engineering
Item Type:Article
Refereed:Yes
Authors:Elektorowicz, Maria and Jahromi, Arash Fellah
Journal or Publication:Journal of Hazardous Materials
Date:2018
Digital Object Identifier (DOI):10.1016/j.jhazmat.2018.07.032
Keywords:Oily sludge; Electrokinetics; Controller theory; Oil-water phase separation; Percolation Theory
ID Code:984034
Deposited By: ALINE SOREL
Deposited On:11 Jul 2018 19:45
Last Modified:11 Jul 2018 19:45

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