Título
Oxygen transfer and consumption in a thiosulfate oxidizing bioreactor with sulfur production
Autor
ARMANDO GONZALEZ SANCHEZ
SERGIO REVAH MOISEEV
ELIAS RAZO FLORES
Nivel de Acceso
Acceso Abierto
Referencia de publicación
ISSN/1472-765X
Referencia de datos
doi: https://sfamjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1472-765X.2005.01741.x
Materias
Resumen o descripción
Aims: To evaluate the contribution of oxygen transfer and consumption in a sulfoxidizing system to increase the elemental sulfur yield from thiosulfate oxidation. Methods and Results: A 10 l thiosulfate oxidizing bioreactor with suspended cells operating under microaerophilic conditions and a separated aerator with a variable volume of 0Æ8–1Æ7 l were operated with a consortium containing mainly Thiobacillus sp. that oxidizes several sulfide species to elemental sulfur and sulfate. From the gas–liquid oxygen balance, the kLa was estimated under different operation conditions. A kLa of around 200 h)1 favoured elemental sulfur production and can serve as scale-up criterion. It was further shown that more than 50% of the oxygen fed to the system was consumed in the aerator. Conclusions: The performance of the sulfoxidizing system can be improved by controlling oxygen transfer. Significance and Impact of the Study: The proposed method for the kLa determination was based on the oxygen balance, which incorporates the oxygen concentrations measured in the liquid in steady state, reducing the interference of the response time in the traditional non-steady state methods. This approach can be used to optimize reactors where microaerophilic conditions are desirable.
Letters in Applied Microbiology
Editor
United Kingdom: Blackwell Publishing
Fecha de publicación
7 de abril de 2020 7 de abril de 2020 2005
Tipo de publicación
Artículo
Recurso de información
http://ilitia.cua.uam.mx:8080/jspui/handle/123456789/317
Letters in Applied Microbiology, núm. 41, 2005
Formato
application/pdf
Idioma
Inglés
Repositorio Orígen
Concentración de Recursos de Información Científica y Académica, UAM Cuajimalpa
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