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Influence of Carbon Source and Inoculum Type on Anaerobic Biomass Adhesion on Polyurethane Foam in Reactors Fed with Acid Mine Drainage by Renata P. Rodriguez; Marcelo Zaiat is a scholarly article available to read on EtoBox.

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This paper analyzes the influence of carbon source and inoculum origin on the dynamics of biomass adhesion to an inert support in anaerobic reactors fed with acid mine drainage. Formic acid, lactic acid and ethanol were used as carbon sources. Two different inocula were evaluated: one taken from an UASB reactor and other from the sediment of a uranium mine. The values of average colonization rates and the maximum biomass concentration (C max ) were inversely proportional to the number of carbon atoms in each substrate. The highest C max value (0.35 g TVS g À1 foam) was observed with formic acid and anaerobic sludge as inoculum. Maximum colonization rates (v max ) were strongly influenced by the type of inoculum when ethanol and lactic acid were used. For both carbon sources, the use of mine sediment as inoculum resulted in a v max of 0.013 g TVS g À1 foam day À1 , whereas 0.024 g TVS g À1 foam day À1 was achieved with anaerobic sludge.

Author

Renata P. Rodriguez; Marcelo Zaiat

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0960-8524)

Published

2011

Language

EN