Wastewater treatment of biodiesel production using persulphate ion as an oxidant
The production of biodiesel produces a highly polluting effluent, because presents high values of Chemical Oxygen Demand (COD), oils and fats, among other contaminants. Sodium persulphate is a powerful oxidant (Eº = 2.1V). In addition to the direct oxidation that is favored in alkaline media, it can...
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| Format: | article |
| Language: | eng |
| Published: |
2020
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| Online Access: | http://hdl.handle.net/20.500.12207/5127 |
| Country: | Portugal |
| Oai: | oai:repositorio.ipbeja.pt:20.500.12207/5127 |
| Summary: | The production of biodiesel produces a highly polluting effluent, because presents high values of Chemical Oxygen Demand (COD), oils and fats, among other contaminants. Sodium persulphate is a powerful oxidant (Eº = 2.1V). In addition to the direct oxidation that is favored in alkaline media, it can be induced by photolytic processes, catalytic and / or catalytic photos forming sulphate radicals (Eº = 2.6 V) thus providing reaction mechanisms with free radicals like hydroxyl radicals. |
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