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Laboratory Experiments on Electrochemical Remediation of the Environment: Electrocoagulation of Oily Wastewater
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Abstract
A laboratory experiment illustrating the principle and application of electrocoagulation is described using oil-water emulsions as the medium to be treated and iron as the anode. The destabilized oil droplets are shown to be separated from the aqueous phase via electrolysis and iron hydrooxide coagulant formation. This simple experiment is shown to afford opportunities for exploring concepts related to colloid chemistry, electrochemistry, corrosion, and analytical chemistry.
Keywords (Audience):
Second-Year UndergraduateKeywords (Domain):
Environmental ChemistryKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
ElectrochemistryCiting Articles
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This article has been cited by 9 ACS Journal articles (5 most recent appear below).
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Electrochemical Removal of Metal Cations from Wastewater Monitored by Differential Pulse Polarography
Delphine Bruce , Alexander Kuhn and Neso SojicJournal of Chemical Education2004 81 (2), 255Electrochemical Removal of Metal Cations from Wastewater Monitored by Differential Pulse Polarography
Delphine Bruce , Alexander Kuhn and Neso SojicJournal of Chemical Education2004 81 (2), 255A simple experiment is described that exposes students to two important aspects of electrochemistry: its potential use in industrial technologies and its application for solving analytical problems. To illustrate these two points we have chosen to examine ...
Studies on the Interfacial Characterization of O/W Emulsion for the Optimization of Its Treatment
Sung Hye Shin and Dong Su KimEnvironmental Science & Technology2001 35 (14), 3040-3047Studies on the Interfacial Characterization of O/W Emulsion for the Optimization of Its Treatment
Sung Hye Shin and Dong Su KimEnvironmental Science & Technology2001 35 (14), 3040-3047Wastewater produced in the form of an o/w emulsion is difficult to treat properly because of its complex behavior. To acquire information for the optimization of emulsion controlling processes, the interfacial features of emulsion systems have been ...
Laboratory Experiments on Electrochemical Remediation of the Environment. Part 5: Indirect H2S Remediation
J. G. IbanezJournal of Chemical Education2001 78 (6), 778Laboratory Experiments on Electrochemical Remediation of the Environment. Part 5: Indirect H2S Remediation
J. G. IbanezJournal of Chemical Education2001 78 (6), 778Many polluting gases can be transformed to nonpolluting--or at least, less polluting--forms by changing the oxidation states of one or more of their constituent atoms. This can often be achieved by transferring electrons to or from the pollutant from or ...
Removal of Heavy Metals from Water: An Environmentally Significant Atomic Absorption Spectrometry Experiment
Brian P. BuffinJournal of Chemical Education1999 76 (12), 1678Removal of Heavy Metals from Water: An Environmentally Significant Atomic Absorption Spectrometry Experiment
Brian P. BuffinJournal of Chemical Education1999 76 (12), 1678A laboratory experiment that combines the environmentally significant topic of wastewater treatment with atomic absorption spectrometry (AAS) is described. In the first portion of the laboratory project, students perform treatment studies on simulated ...
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- Received: August 03, 2009
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