Abstract
Humic substances in groundwaters containing dissolved iron form stable colloids. Pulsed spark discharge in a granular steel bed was applied for abatement humic substances and synthetic indicators mimicking the target molecule fragments. A reversible red-ox cationic methylene blue, an anionic eosin Y and irreversible red-ox indicator furacilin were used to disclose the reactions and adsorption on the discharge erosion products. Partial, for about 40%, mineralization of organic molecules was observed for all substances, whereas rapid red-ox reactions also took place between organic molecules and dissolved ferrous iron. Humic substances adsorbed at the spark erosion products with their anionic groups.
Original language | English |
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Pages (from-to) | 90-98 |
Number of pages | 9 |
Journal | Journal of Electrostatics |
Volume | 96 |
DOIs | |
Publication status | Published - 1 Dec 2018 |
Keywords
- Erosion
- Humic substances
- Red-ox reactions
- Spark discharge
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biotechnology
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering