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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Universidad Nacional de Colombia
2016
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=49645986010 https://www.redalyc.org/journal/496/49645986010/ https://www.redalyc.org/journal/496/49645986010/html/ https://www.redalyc.org/journal/496/49645986010/49645986010.epub https://www.redalyc.org/journal/496/49645986010/movil |
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| _version_ | 1866814295677861888 |
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| author | Gerardo Andrés Caicedo-Pineda |
| author_facet | Gerardo Andrés Caicedo-Pineda |
| contents | Differences between the use of ferric sulphate and ferric chloride on biodesulfurization of a large coal particle Gerardo Andrés Caicedo-Pineda Marco Antonio Márquez-Godoy Ingeniería ferric chloride ferric sulphate pyrite oxidation Coal biodesulfurization Acidithiobacillus thiooxidans Three iron sources (FeSO4, Fe2(SO4)3 and FeCl3) at different concentrations (150, 700 and 1250 mg Fe/L) were evaluated on large coal particle biodesulfurization processes at Erlenmeyer level. A consortium of Acidithiobacillus ferrooxidans (ATCC 23270) and Acidithiobacillus thiooxidans (ATCC 15494) was used in all the assays. By using 150 mg Fe2+/L (from FeSO4), pyrite biooxidation was 31.14% after 12 days. When Fe2(SO4)3 replaced FeSO4, oxidation improved by 21.16%. The assays using the highest concentrations of sulphate sources also obtained the same increase. However, Fe2(SO4)3 assays had a better sulphate removal from coal. This suggests that using the smallest concentration of Fe2(SO4)3 is a good alternative to boost the pyrite oxidation rate and avoid the formation of precipitates. Additionally, biooxidation in the FeCl3 assays decreased, indicating, a priori, that the microorganisms were not able to adapt properly to Cl- ions. 2016 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49645986010 https://www.redalyc.org/journal/496/49645986010/ https://www.redalyc.org/journal/496/49645986010/html/ https://www.redalyc.org/journal/496/49645986010/49645986010.epub https://www.redalyc.org/journal/496/49645986010/movil en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.197 Vol.83 |
| format | Artículo científico |
| id | redalyc_49645986010 |
| language | en |
| publishDate | 2016 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Differences between the use of ferric sulphate and ferric chloride on biodesulfurization of a large coal particle Gerardo Andrés Caicedo-Pineda Ingeniería ferric chloride ferric sulphate pyrite oxidation Coal biodesulfurization Acidithiobacillus thiooxidans Differences between the use of ferric sulphate and ferric chloride on biodesulfurization of a large coal particle Gerardo Andrés Caicedo-Pineda Marco Antonio Márquez-Godoy Ingeniería ferric chloride ferric sulphate pyrite oxidation Coal biodesulfurization Acidithiobacillus thiooxidans Three iron sources (FeSO4, Fe2(SO4)3 and FeCl3) at different concentrations (150, 700 and 1250 mg Fe/L) were evaluated on large coal particle biodesulfurization processes at Erlenmeyer level. A consortium of Acidithiobacillus ferrooxidans (ATCC 23270) and Acidithiobacillus thiooxidans (ATCC 15494) was used in all the assays. By using 150 mg Fe2+/L (from FeSO4), pyrite biooxidation was 31.14% after 12 days. When Fe2(SO4)3 replaced FeSO4, oxidation improved by 21.16%. The assays using the highest concentrations of sulphate sources also obtained the same increase. However, Fe2(SO4)3 assays had a better sulphate removal from coal. This suggests that using the smallest concentration of Fe2(SO4)3 is a good alternative to boost the pyrite oxidation rate and avoid the formation of precipitates. Additionally, biooxidation in the FeCl3 assays decreased, indicating, a priori, that the microorganisms were not able to adapt properly to Cl- ions. 2016 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49645986010 https://www.redalyc.org/journal/496/49645986010/ https://www.redalyc.org/journal/496/49645986010/html/ https://www.redalyc.org/journal/496/49645986010/49645986010.epub https://www.redalyc.org/journal/496/49645986010/movil en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.197 Vol.83 |
| title | Differences between the use of ferric sulphate and ferric chloride on biodesulfurization of a large coal particle |
| topic | Ingeniería ferric chloride ferric sulphate pyrite oxidation Coal biodesulfurization Acidithiobacillus thiooxidans |
| url | https://www.redalyc.org/articulo.oa?id=49645986010 https://www.redalyc.org/journal/496/49645986010/ https://www.redalyc.org/journal/496/49645986010/html/ https://www.redalyc.org/journal/496/49645986010/49645986010.epub https://www.redalyc.org/journal/496/49645986010/movil |