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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2021
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=64379876010 https://www.redalyc.org/journal/643/64379876010/ https://www.redalyc.org/journal/643/64379876010/html/ https://www.redalyc.org/journal/643/64379876010/64379876010.epub https://www.redalyc.org/journal/643/64379876010/movil |
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| _version_ | 1866815631213461504 |
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| author | Mario Santander-Muñoz |
| author_facet | Mario Santander-Muñoz |
| contents | Removal of Sulfate Ions by Precipitation and Flotation Mario Santander-Muñoz Paola Cardozo-Castillo Luis Valderrama-Campusano Ingeniería flotation sulfate ions precipitation Water pollution The removal of sulfate ions from natural waters, as well as from industrial effluents of different origins, is a problem, considering that most of the proposed processes are inefficient and have a high cost, mainly when reducing the sulfate ion concentration to values below 500 mg.L-1 is required. The flotation technique, combined with precipitation, has proven to be efficient for the removal of heavy metal ions. However, there is not enough research to confirm its efficiency for the removal of sulfate ions. This article presents the results of sulfate ion removal from synthetic solutions prepared in an acidic medium, applying the co-precipitation techniques with polyaluminum chloride (PAC) and solid/liquid separation by dissolved air flotation (DAF). The effect of the pH, the PAC: sulfate ions ratio, the effect of saturated water flow with air, and the flocculant and collector doses were studied. The achieved results confirm that it is possible to reduce the concentration of sulfate ions from 1 800 to 350 mg.L-1 (80% removal) from synthetic solutions by applying the flotation technique combined with precipitation. 2021 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64379876010 https://www.redalyc.org/journal/643/64379876010/ https://www.redalyc.org/journal/643/64379876010/html/ https://www.redalyc.org/journal/643/64379876010/64379876010.epub https://www.redalyc.org/journal/643/64379876010/movil 10.15446/ing.investig.v41n3.90349 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.3 Vol.41 |
| format | Artículo científico |
| id | redalyc_64379876010 |
| language | en |
| publishDate | 2021 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Removal of Sulfate Ions by Precipitation and Flotation Mario Santander-Muñoz Ingeniería flotation sulfate ions precipitation Water pollution Removal of Sulfate Ions by Precipitation and Flotation Mario Santander-Muñoz Paola Cardozo-Castillo Luis Valderrama-Campusano Ingeniería flotation sulfate ions precipitation Water pollution The removal of sulfate ions from natural waters, as well as from industrial effluents of different origins, is a problem, considering that most of the proposed processes are inefficient and have a high cost, mainly when reducing the sulfate ion concentration to values below 500 mg.L-1 is required. The flotation technique, combined with precipitation, has proven to be efficient for the removal of heavy metal ions. However, there is not enough research to confirm its efficiency for the removal of sulfate ions. This article presents the results of sulfate ion removal from synthetic solutions prepared in an acidic medium, applying the co-precipitation techniques with polyaluminum chloride (PAC) and solid/liquid separation by dissolved air flotation (DAF). The effect of the pH, the PAC: sulfate ions ratio, the effect of saturated water flow with air, and the flocculant and collector doses were studied. The achieved results confirm that it is possible to reduce the concentration of sulfate ions from 1 800 to 350 mg.L-1 (80% removal) from synthetic solutions by applying the flotation technique combined with precipitation. 2021 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64379876010 https://www.redalyc.org/journal/643/64379876010/ https://www.redalyc.org/journal/643/64379876010/html/ https://www.redalyc.org/journal/643/64379876010/64379876010.epub https://www.redalyc.org/journal/643/64379876010/movil 10.15446/ing.investig.v41n3.90349 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.3 Vol.41 |
| title | Removal of Sulfate Ions by Precipitation and Flotation |
| topic | Ingeniería flotation sulfate ions precipitation Water pollution |
| url | https://www.redalyc.org/articulo.oa?id=64379876010 https://www.redalyc.org/journal/643/64379876010/ https://www.redalyc.org/journal/643/64379876010/html/ https://www.redalyc.org/journal/643/64379876010/64379876010.epub https://www.redalyc.org/journal/643/64379876010/movil |