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Youneng Tang, Aura Ontiveros-Valencia, Liang Feng, Chen Zhou, Rosa Krajmalnik-Brown and Bruce E. Rittmann A biofilm model to understand the onset of sulfate reduction in denitrifying membrane biofilm reactors Biotechnology and Bioengineering 110

Article first published online: 1 NOV 2012 | DOI: 10.1002/bit.24755

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Engineers usually want to maximize nitrate reduction while suppressing sulfate reduction in a H2-based membrane biofilm reactor used for water or wastewater treatment. To achieve this objective, it is important to know that the onset of sulfate reduction occurs only when the nitrate concentration at the fiber's outer surface is low enough so that the growth rate of the denitrifying bacteria is at least equal to that of the sulfate-reducing bacteria.

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