Location of Repository

Effects of Nickel and Cobalt on Kinetics of Methanol Conversion by Methanogenic Sludge as Assessed by On-Line CH4 Monitoring

By Graciela Gonzalez-Gil, Robbert Kleerebezem and Gatze Lettinga

Abstract

When metals were added in a pulse mode to methylotrophic-methanogenic biomass, three methane production rate phases were recognized. Increased concentrations of Ni and Co accelerated the initial exponential and final arithmetic increases in the methane production rate and reduced the temporary decrease in the rate. When Ni and Co were added continuously, the temporary decrease phase was eliminated and the exponential production rate increased. We hypothesize that the temporary decrease in the methane production rate and the final arithmetic increase in the methane production rate were due to micronutrient limitations and that the precipitation-dissolution kinetics of metal sulfides may play a key role in the biovailability of these compounds

Topics: Physiology and Biotechnology
Publisher: American Society for Microbiology
Year: 1999
OAI identifier: oai:pubmedcentral.nih.gov:91254
Provided by: PubMed Central
Sorry, our data provider has not provided any external links therefor we are unable to provide a PDF.

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.