In situ electrochemical manipulation of oxidation-reduction potential in saturated subsurface matrices
| Autor: | Song Jin, John J Eisenbeis, Paul H. Fallgren |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Environmental Engineering Materials science Colorado Field (physics) 030106 microbiology Aquifer 010501 environmental sciences Electrochemistry 01 natural sciences Redox law.invention 03 medical and health sciences Reduction potential law Electric field Water Pollution Chemical Humans Electrodes Groundwater 0105 earth and related environmental sciences geography geography.geographical_feature_category Direct current General Medicine Electrochemical Techniques Cathode Chemical physics Oxidation-Reduction Water Pollutants Chemical |
| Zdroj: | Journal of environmental science and health. Part A, Toxic/hazardous substancesenvironmental engineering. 53(6) |
| ISSN: | 1532-4117 |
| Popis: | Application of a low-intensity electric field is known to influence oxidation-reduction (redox) potential in a saturated matrix. In this study, such redox manipulation was attempted in at a site with contaminated aquifer. At the experiment field site, electrodes connected to a direct current (DC) source provided an electric field with an intensity of 1.82 V m−1. Redox potentials at locations 3.0 m and 7.9 m from the cathode decreased by 111 mV and 33 mV within a few hours, respectively, indicating that reducing conditions in the aquifer may be established within the electric field. Overall, it is possible to manipulate in situ redox potential in saturated subsurface matrices by applying low-intensity electric fields. |
| Databáze: | OpenAIRE |
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