Electrochemical treatment of perfluorooctanoic acid and perfluorooctane sulfonate: Insights into mechanisms and application to groundwater treatment
| Autor: | Timothy J. Strathmann, Christina Andaya, Charles W. Condee, Aniela Burant, A.M. Urtiaga, Charles E. Schaefer, Christopher P. Higgins |
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| Rok vydání: | 2017 |
| Předmět: |
Chemistry
General Chemical Engineering Radical Alcohol 02 engineering and technology General Chemistry Electrolyte 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Chloride Industrial and Manufacturing Engineering Perchlorate chemistry.chemical_compound Perfluorooctane Environmental chemistry medicine Environmental Chemistry Perfluorooctanoic acid Hydroxyl radical 0210 nano-technology 0105 earth and related environmental sciences medicine.drug |
| Zdroj: | Chemical Engineering Journal. 317:424-432 |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2017.02.107 |
| Popis: | Electrochemical treatment of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) using a nanocrystalline boron-doped diamond (BDD) anode was investigated in a series of bench-scale batch experiments. Experiments focused on assessing the impacts of chloride electrolyte and of hydroxyl radical scavenger tert-butyl alcohol (TBA) on both the rates of PFOA and PFOS removal, and the corresponding rates of defluorination. Treatment of PFOA and PFOS in natural groundwater at concentrations that might be observed in the field (0.3 and 0.6 mg/L PFOA and PFOS, respectively) was also evaluated and compared to results obtained in electrolyte solutions with elevated PFOA and PFOS concentrations (15 and 10 mg/L, respectively). Results showed that the presence of chloride and TBA had minimal effects (decreasing rates by |
| Databáze: | OpenAIRE |
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