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Effect of Fe2+ ions on gypsum precipitation during bulk crystallization of reverse osmosis concentrates.

Author(s): Melliti E, Touati K, Van der Bruggen B, Elfil H

In reverse osmosis desalination, the concentrate is a saline solution that may become supersaturated. Heterogeneous nucleation of salts occurs at the membrane surface, resulting in the buildup of inorganic deposits on the membrane. The inorganic nucleation ...

Article GUID: 32814139
Effects of chronic exposure to selenomethionine on social learning outcomes in zebrafish (Danio rerio): serotonergic dysregulation and oxidative stress in the brain.

Author(s): Attaran A, Salahinejad A, Naderi M, Crane AL, Niyogi S, Chivers DP

Chemosphere. 2020 Jan 11;247:125898 Authors: Attaran A, Salahinejad A, Naderi M, Crane AL, Niyogi S, Chivers DP

Article GUID: 31972490
Exploring the use of ceramic disk filter coated with Ag/ZnO nanocomposites as an innovative approach for removing Escherichia coli from household drinking water.

Author(s): Huang J, Huang G, An C, Xin X, Chen X, Zhao Y, Feng R, Xiong W

Chemosphere. 2019 Dec 06;245:125545 Authors: Huang J, Huang G, An C, Xin X, Chen X, Zhao Y, Feng R, Xiong W

Article GUID: 31864067
A biophysiological perspective on enhanced nitrate removal from decentralized domestic sewage using gravitational-flow multi-soil-layering systems.

Author(s): Song P, Huang G, Hong Y, An C, Xin X, Zhang P

Chemosphere. 2019 Sep 14;240:124868 Authors: Song P, Huang G, Hong Y, An C, Xin X, Zhang P

Article GUID: 31542583
Electrochemical efficacy of a carboxylated multiwalled carbon nanotube filter for the removal of ibuprofen from aqueous solutions under acidic conditions.

Author(s): Bakr AR, Rahaman MS

Chemosphere. 2016 Jun;153:508-20 Authors: Bakr AR, Rahaman MS

Article GUID: 27035389
Electro-demulsification of water-in-oil suspensions enhanced with implementing various additives.

Author(s): Taslimi Taleghani S, Fellah Jahromi A, Elektorowicz M

Chemosphere. 2019 May 20;233:157-163 Authors: Taslimi Taleghani S, Fellah Jahromi A, Elektorowicz M

Article GUID: 31173953
Hierarchical magnetic petal-like Fe3O4-ZnO@g-C3N4 for removal of sulfamethoxazole, suppression of photocorrosion, by-products identification and toxicity assessment

Author(s): Mirzaei A; Chen Z; Haghighat F; Yerushalmi L;

Herein, a petal-like photocatalyst, Fe3O4-ZnO@g-C3N4 (FZG) with different g-C3N4 to ZnO ratios was synthesized with hierarchical structure. The FZG1 photocatalyst, having the weight ratio of 1:1 for the initial urea and Fe3O4-ZnO (Fe-ZnO), presented the hig...

Article GUID: 29705637
Hydrothermal/solvothermal synthesis and treatment of TiO2 for photocatalytic degradation of air pollutants: Preparation, characterization, properties, and performance.

Author(s): Mamaghani AH, Haghighat F, Lee CS

Chemosphere. 2019 Mar;219:804-825 Authors: Mamaghani AH, Haghighat F, Lee CS

Article GUID: 30572234
Wastewater treatment in amine-based carbon capture.

Author(s): Dong C, Huang G, Cheng G, An C, Yao Y, Chen X, Chen J

Chemosphere. 2019 May;222:742-756 Authors: Dong C, Huang G, Cheng G, An C, Yao Y, Chen X, Chen J

Article GUID: 30738317
Title:Electro-demulsification of water-in-oil suspensions enhanced with implementing various additives.
Authors:Taslimi Taleghani S,  Fellah Jahromi A,  Elektorowicz M
Link:https://www.ncbi.nlm.nih.gov/pubmed/31173953?dopt=Abstract
DOI:10.1016/j.chemosphere.2019.05.161
Category:Chemosphere
PMID:31173953
Dept Affiliation: ENCS
1 Department of Building Civil and Environmental Engineering Concordia University, 1455 De Maisonneuve Blvd. W, Montreal, Quebec, H3G 1M8, Canada. Electronic address: s_tasli@encs.concordia.ca.
2 Department of Building Civil and Environmental Engineering Concordia University, 1455 De Maisonneuve Blvd. W, Montreal, Quebec, H3G 1M8, Canada.

Description:

Electro-demulsification of water-in-oil suspensions enhanced with implementing various additives.

Chemosphere. 2019 May 20;233:157-163

Authors: Taslimi Taleghani S, Fellah Jahromi A, Elektorowicz M

Abstract

A huge amount of various oily suspensions that frequently display properties of stable emulsions are produced per day in upstream and downstream petroleum industries. As this waste is considered potentially harmful to the environment, their management and disposal require particular attention. While current treatment processes, such as partial water removal via the separation of phases by centrifuging result in decreased waste volumes for disposal, a significant volume of water and oil remains trapped in the form of water-in-oil emulsion. Therefore, the electrokinetic method for oil-water separation came into consideration for the improvement of the quality and volume of separated products. This paper discusses the impacts of additives, namely, ferric chloride, alum, cationic polymer, clay, and a mixture of clay and cationic polymer on the electrokinetic treatment of suspensions. The tests were conducted at a lab scale using an array of steel electrodes and low voltage. The objective of this study was to observe the impact of voltage gradients on electro-demulsification, in conjunction with employing additives into the separation and recovery of water, light, and heavy oil. An optimal recovery of light oil by 28%-52% in addition to heavy oil and water in the presence of ferric chloride under a constant voltage gradient of 1 V/cm, was achieved. Furthermore, the same system revealed an excellent clarity of extracted water. The results from this study can be implemented at a larger scale in upstream and downstream petroleum industries.

PMID: 31173953 [PubMed - as supplied by publisher]