Demulsification performance and mechanism of oil droplets by electrocoagulation: Role of surfactant.

Electrocoagulation Emulsions / chemistry Pulmonary Surfactants Surface-Active Agents / chemistry Water Purification / methods
Charge neutralization Electrostatic repulsion Flotation Surfactant

Journal

Journal of environmental sciences (China)
ISSN: 1001-0742
Titre abrégé: J Environ Sci (China)
Pays: Netherlands
ID NLM: 100967627

Informations de publication

Date de publication:
Aug 2022
Historique:
received: 22 09 2021
revised: 14 12 2021
accepted: 14 12 2021
entrez: 20 3 2022
pubmed: 21 3 2022
medline: 23 3 2022
Statut: ppublish

Résumé

Surfactants are widely used to improve the solubility of oil in water in petrochemical, making it more difficult to remove oil-water emulsions during the water treatment process. Electrocoagulation (EC) is an appropriate method for treating oily wastewater and destabilizing emulsions. However, the demulsification mechanism of oil-water droplets emulsified by surfactants with different charges have not been investigated systematically. The demulsification performance of electrocoagulation on emulsions wastewater containing cationic, non-ionic, and anionic surfactants was studied. The results showed that the removal rate of total organic carbon (TOC) in oily wastewater with anionic surfactant by EC reached 92.98% ± 0.40% at a current density of 1 mA/cm

Identifiants

DOI: 10.1016/j.jes.2021.12.018 PMID: 35305766
pubmed: 35305766
pii: S1001-0742(21)00541-6
doi: 10.1016/j.jes.2021.12.018
pii:
doi:

Substances chimiques

Emulsions 0
Pulmonary Surfactants 0
Surface-Active Agents 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

171-180

Informations de copyright

Copyright © 2021. Published by Elsevier B.V.

Auteurs

Liang Wang (L)

State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China.

Ben Zhang (B)

State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.

Bin Zhao (B)

State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China.

Saiguo Yang (S)

State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.

Kun Wu (K)

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. Electronic address: wukun2012@xauat.edu.cn.

Jingqiu Sun (J)

State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China. Electronic address: jqsun@rcees.ac.cn.

Chengzhi Hu (C)

State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.

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Classifications MeSH

questionsmedicales.fr › Procédures de chirurgie opératoire › Techniques d'ablation › Cautérisation › Électrocoagulation › Demulsification performance and mechanism of...
questionsmedicales.fr › Préparations pharmaceutiques › Colloïdes › Émulsions › Demulsification performance and mechanism of...
questionsmedicales.fr › Actions chimiques et utilisations › Actions pharmacologiques › Utilisations thérapeutiques › Agents de l'appareil respiratoire › Surfactants pulmonaires › Demulsification performance and mechanism of...
questionsmedicales.fr › Actions chimiques et utilisations › Utilisations spécialisées de produits chimiques › Tensioactifs › Demulsification performance and mechanism of...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Amélioration du niveau sanitaire › Génie sanitaire › Gestion des déchets › Purification de l'eau › Demulsification performance and mechanism of...