English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/178874
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Biological removal of gaseous sulfur dioxide through the reduction to hydrogen sulfide by means of Desulfovibrio desulfuricans

AuthorsPapi, S.; Montalvo, Silvio; Papic, L.j.; Borja Padilla, Rafael
KeywordsSO2 removal
Hydrogen sulfide
Desulfovibrio desulfuricans
Batch mode
Issue DateJan-2020
CitationInternational Biodeterioration and Biodegradation 126: 21-27 (2018)
AbstractThe biological removal of gaseous sulfur dioxide using the sulfate reducing bacteria Desulfovibrio desulfuricans is studied. Laboratory-scale bioreactors were designed to generate sulfur dioxide in them through a chemical reaction. To evaluate the biological reduction, three kinetics (in triplicate) were taken in batch mode with loads of 15, 20 and 25 mmol of SO2 generated in the gas phase per liter of culture medium in the liquid phase. Lactate was used as substrate (electron donor) and carbon source. The experimental results showed a 100% SO2 reduction for all the evaluated loads. The tests lasted 24, 72 and 192 h, with lower, intermediate and higher loads, respectively. The total sulfide (S2−) produced varied between 75 and 126 mg for the tests with lower and higher load, respectively. These amounts were composed of a fraction in the aqueous phase (287 and 533 mg of S2−/L) and another in the gas phase (0.9 × 108 and 2.7 × 108 μg H2S/m3). The mass ratio between product formation (sulfide) and electron donor consumption (expressed as COD) ranged from 81% to 90% of the theoretical value (0.67 mg of sulfide produced per mg of COD consumed).
Description36 Páginas.-- 7 Figuras.-- 4 Tablas
Publisher version (URL)Http://dx.doi.org/10.1016/j.ibiod.2017.09.023
Appears in Collections:(IG) Artículos
Files in This Item:
File Description SizeFormat 
PostP_2018_IBB_V126_P21.pdfArtículo principal584,88 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.