Concept

Biodégradation

Publications associées (135)

Buffering soil-water acidity in chlorinated solvent bioremediation schemes

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

Chlorinated solvents form a significant part of groundwater contamination worldwide. They are difficult to remove via physical means, and anaerobic source-zone remediation based on provision of fermentable e-donor is an attractive clean-up dechlorination o ...

International Union of Soil Sciences2010

Enhanced sonochemical degradation of bisphenol-A by bicarbonate ions

César Pulgarin

Sonochemical elimination of organic pollutants can take place through two degradation pathways. Molecules with relatively large Henry’s law constants will be incinerated inside the cavitation bubble, while nonvolatile molecules with low Henry’s law constan ...

2010

Bacterial life in a stagnant PCE-contaminated aquifer

Christof Holliger, Pierre Rossi, Noam Shani

Chlorinated ethenes (CEs) represent a major environmental concern in most industrialized countries. These compounds, used as solvents and degreasing agents since the 1940s, have been released accidentally into the environment. Being recalcitrant to aerobic ...

2010

Biochemistry of Microbial Degradation of Hexachlorocyclohexane and Prospects for Bioremediation

Christof Holliger, Vishakha Raina

Lindane, the gamma-isomer of hexachlorocyclohexane (HCH), is a potent insecticide. Purified lindane or unpurified mixtures of this and alpha-, beta-, and gamma- isomers of HCH were widely used as commercial insecticides in the last half of the 20th century ...

2010

Computational Framework for Predictive Biodegradation

Vassily Hatzimanikatis, Stacey Deleria Finley

As increasing amounts of anthropogenic chemicals are released into the environment, it is vital to human health and the preservation of ecosystems to evaluate the fate of these chemicals in the environment. It is useful to predict whether a particular comp ...

2009

From Laboratory Studies to the Field Applications of Advanced Oxidation Processes: A Case Study of Technology Transfer from Switzerland to Burkina Faso on the Field of Photochemical Detoxification of Biorecalcitrant Chemical Pollutants in Water

César Pulgarin, Victor Sarria

The Fenton and photo-Fenton detoxification of non-biodegradable chemical pollution in water was investigated under simulated UV light in the laboratory and under direct sunlight in Ouagadougou, Burkina Faso. The laboratory experiments enable one to make a ...

Hindawi Publishing Corporation2009

Thermodynamic Analysis of Biodegradation Pathways

Vassily Hatzimanikatis, Stacey Deleria Finley

Microorganisms provide a wealth of bio-degradative potential in the reduction and elimination of xenobiotic compounds in the environment. One useful metric to evaluate potential biodegradation pathways is thermodynamic feasibility. However, experimental da ...

2009

A post-modification approach to peptide foldamers

Harm-Anton Klok, Laure Menin, Nadja Franz

Hydrophilic/hydrophobic patterning is a powerful strategy to control folding in non-natural polymers/oligomers. In this contribution, we present a novel strategy for the preparation of alternating hydrophilic/hydrophobic patterned non-natural peptide folda ...

Royal Society of Chemistry2009

Quantification of biodegradation for o-xylene and naphthalene using first order decay models, Michaelis-Menten kinetics and stable carbon isotopes

At a former wood preservation plant severely contaminated with coal tar oil, in situ bulk attenuation and biodegradation rate constants for several monoaromatic (BTEX) and polyaromatic hydrocarbons (PAH) were determined using (1) classical first order deca ...

2009

Nanostructured titania coatings for drug-eluting medical implants

Karin Dittmar

Medical implants delivering drugs are used to ensure efficient medication at body sites, at which the conventional administration of drugs is insufficient. The application of drug-delivery coatings is a beneficial concept for implants exposed to mechanical ...

EPFL2009

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