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Publications associées (44)

Influence of pH on dehalogenating bacteria for bioremediation of chlorinated solvents

David Andrew Barry, Christof Holliger, Alessandro Brovelli, Elsa Marina Lacroix

Chloroethenes such as tetrachloroethene (PCE) and trichloroethene (TCE) are among the most prevalent contaminants in groundwater due to their extensive use in industrial processes. In situ bioremediation (ISB) is an attractive technology for removal of the ...

2011

Evaluation of silicate minerals for acid neutralization during bioremediation of high concentrations of chlorinated ethenes

Louise Gilbert

Chloroethenes are the most prevalent groundwater contaminants in developed countries. They accumulate in the environment as a dense non aqueous phase liquid (DNAPL) which acts as a long term source of contamination. Enhanced in situ anaerobic bioremediatio ...

2011

Utilization of silicate minerals for pH control during in situ bioremediation of chlorinated solvent

David Andrew Barry, Christof Holliger, Alessandro Brovelli, Elsa Marina Lacroix

2011

Buffering agent for pH control during in situ bioremediation of chlorinated solvent source zones

David Andrew Barry, Christof Holliger, Elsa Marina Lacroix

Chloroethenes such as tetrachloroethene (PCE) and trichloroethene (TCE) are among the most prevalent contaminants in groundwater. Because of their low aqueous solubility, PCE and TCE are often present as dense non aqueous phase liquid (DNAPL) that can act ...

2010

Fuel bioethanol production from whey permeate

François-Nicolas de Glutz

The objective of this thesis was to evaluate the feasibility for the production of fuel bioethanol from whey permeate. The identification of the limiting factors of the process revealed that the stabilization of the substrate was critical to the use of whe ...

EPFL2009

On-Line Recalibration of Spectral Measurements Using Metabolite Injections and Dynamic Orthogonal Projection

Urs von Stockar, Michael Amrhein, Pamandeep Singh Gujral, Michal Dabros

Spectrometers are enjoying increasing popularity in bioprocess monitoring due to their non-invasiveness and in-situ sterilizability. Their on-line applicability and high measurement frequency create an interesting opportunity for process control and optimi ...

2007

Immobilization as a tool to control fermentation in yeast-leavened refrigerated dough

Urs von Stockar, Ian William Marison, Véronique Breguet, Raphaël Gugerli

In order to extend the shelf life of refrigerated dough, a new method based on thermo-gelling immobilization is proposed. This slows fermn. at low temps. (

2004

Hydrogen production by Clostridium thermolacticum during continuous fermentation of lactose

Jean-Paul Schwitzguebel, Nevenka Adler, Christophe Collet

In the production of acetate by Clostridium thermolacticum growing on lactose, considerable amounts of hydrogen were generated. Lactose available in large amounts from milk permeate, a wastestream of the dairy industry, appears to be a valuable substrate f ...

2004

Influence of residual ethanol concentration on the growth of Gluconacetobacter xylinus I 2281

Urs von Stockar, Ian William Marison, Henri Kornmann

The influence of residual ethanol on metab. of food grade Gluconacetobacter xylinum I 2281 was investigated during controlled cultivations on 35 g/l glucose and 5 g/l ethanol. Bacterial growth was strongly reduced in the presence of ethanol, which is unusu ...

Springer-Verlag2003

Optimal Control of Fed-Batch Fermenters

Dominique Bonvin, Urs von Stockar, Sergio Valentinotti, Christopher Cannizzaro, Martin Rhiel

Optimal control of fed-batch fermenters S. Valentinotti† C. Cannizzaro‡ M.Rhiel‡ U. Holmberg† U. von Stockar‡ D. Bonvin† †Institut d’Automatique, EPFL, 1015 Lausanne, Switzerland ‡Institut de Genie Chimique, EPFL, 1015 Lausanne, Switzerland Fermentors are ...

2000

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