Process Optimization for the Production of Ferric Sulfate Coagulant by the Oxidation of Ferrous sulfate with Hydrogen Peroxide
| Autor: | Brunno F. Santos, Luiz Alberto Cesar Teixeira, Veronica Barbosa Mazza, Ana Rosa Fonseca de Aguiar Martins |
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| Rok vydání: | 2020 |
| Předmět: |
General Chemical Engineering
02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Ferrous chemistry.chemical_compound chemistry Modeling and Simulation medicine Ferric Process optimization Sulfate 0210 nano-technology Hydrogen peroxide medicine.drug Nuclear chemistry |
| Zdroj: | Chemical Product and Process Modeling. 15 |
| ISSN: | 1934-2659 2194-6159 |
| Popis: | Motivated by the oxidative power of hydrogen peroxide and its environmentally attractive properties, the present study aimed to determine the optimum conditions for the production of ferric sulfate coagulant from ferrous sulfate The independent variables studied were the temperature (7.5–27.5 °C), amount of hydrogen peroxide (100–300 %) of the stoichiometric amount for the oxidation reaction, and dilution of the reaction medium using water (100–300 %) of the stoichiometric amount for the oxidation reaction. For the optimum conditions achieved, it was possible to obtain a conversion of 96.17 % of Fe+2to Fe+3, using a small hydrogen peroxide excess of 50 %, resulting in a product suitable for use as a coagulant in water treatment. It was found that an oxidation potential (Eh) greater than 0.7 volts corresponded to the conversion of Fe+2to Fe+3greater than 90 %, indicating Eh to be useful for reaction control in an industrial process. |
| Databáze: | OpenAIRE |
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