Publications associées à Remediation of contaminated sites with cement

Sulfurospirillum diekertiae sp. nov., a tetrachloroethene-respiring bacterium isolated from contaminated soil

Christof Holliger, Julien Maillard, Junxiong Wang

Two anaerobic, tetrachloroethene- (PCE-) respiring bacterial isolates, designated strain ACSDCE T and strain ACSTCE, were characterized using a polyphasic approach. Cells were Gram-stain-negative, motile, non-spore-forming and shared a vibrioid- to spirill ...

2023

Full-scale in-situ tests on energy piles: Head and base-restraining effects on the structural behaviour of three energy piles

Melis Sütman

Energy piles, due to their dual roles, are exposed to temperature change throughout their life time, which may cause axial displacements, additional axial stresses and changes in the shaft resistance along their lengths. The extent of these effects highly ...

ELSEVIER SCIENCE BV2019

Oxygen consumption in seasonally stratified lakes decreases only below a marginal phosphorus threshold

Alfred Johny Wüest, Robert Vincent Schwefel

Areal oxygen (O-2) consumption in deeper layers of stratified lakes and reservoirs depends on the amount of settling organic matter. As phosphorus (P) limits primary production in most lakes, protective and remediation efforts often seek to reduce P input. ...

Springer Nature2019

Phytoremediation of soils contaminated by organic compounds: hype, hope and facts

Jean-Paul Schwitzguebel

The present opinion paper is focused on the phytoremediation of organic pollutants and is based on the lectures given by the author during the International Congress of Phytoremediation of Polluted Soils, held at Vigo, Spain, 29-30 July 2014. The aim of th ...

Springer Verlag2017

Metal Distribution and Characterization of Cultivable Lead-Resistant Bacteria in Shooting Range Soils

Aline Sondra Adler

Shooting ranges represent about 10% of polluted sites in Switzerland. This pollution, mainly consisting of lead (Pb) and antimony (Sb), can spread into the local groundwater, wildlife and plants. In this study, shooting range stop butt soils (elevated soil ...

Taylor & Francis Inc2016

Fabric characteristics and mechanical response to bio-improved sand to various treatment conditions

Lyesse Laloui, Rizlan Bernier-Latmani, Dimitrios Terzis

Investigating the enhanced mechanical response of treated soils through microbially induced calcite precipitation requires extensive understanding of the pore structure. Depending on the applied treatment conditions, the resulted material exhibits distinct ...

Ice Publishing2016

Effect of treatment on the microstructural characteristics of bio-improved sand

Lyesse Laloui, Dimitrios Terzis

Bio-chemical processes have recently become the core of several studies in the geoengineering field, where the emphasis is placed on new and emerging applications. Microbially Induced Calcite Precipitation has been introduced as an alternative cementation ...

IOS Press, 20152015

Field application of a rapid spectrophotometric method for determination of persulfate in soil

David Andrew Barry

Remediation of hydrocarbon contaminated soils can be performed both in situ and ex situ using chemical oxidants such as sodium persulfate. Standard methods for quantifying persulfate require either centrifugation or prolonged settling times. An optimized s ...

Public Library of Science2013

Metal accumulation and response of antioxidant enzymes in seedlings and adult sunflower mutants with improved metal removal traits on a metal-contaminated soil

Jean-Paul Schwitzguebel, Erika Nehnevajova

Sunflower mutant lines with an enhanced tolerance and metal accumulation capacity obtained by mutation breeding have been proposed for Zn, Cd and Cu removal from metal-contaminated soils in previous studies. However, soils contaminated with trace elements ...

Elsevier2012

Successes and limitations of phytotechnologies at field scale: outcomes, assessment and outlook from COST Action 859

Jean-Paul Schwitzguebel

Purpose Many agricultural and brownfield soils are polluted and more have become marginalised due to the introduction of new, risk-based legislation. The European Environment Agency estimates that there are at least 250,000 polluted sites in the member sta ...

Springer Verlag2010

Design tool for estimation of buffer requirement for enhanced reductive dechlorination of chlorinated solvents in groundwater

David Andrew Barry, Clare Robinson

To assist in the design of enhanced reductive dechlorination systems for in situ remediation of chlorinated solvent source zones, the software BUCHLORAC (BUffering of deCHLORination ACidity) was developed to predict the amount of buffer required to maintai ...

Elsevier2009

Enhanced biodegradation of hexachlorocyclohexane (HCH) in contaminated soils via inoculation with Sphingobium indicum B90A

Christof Holliger, Vishakha Raina

Soil pollution with hexachlorocyclohexane (HCH) has caused serious environmental problems. Here we describe the targeted degradation of all HCH isomers by applying the aerobic bacterium Sphingobium indicum B90A. In particular, we examined possibilities for ...

2008

Étude expérimentale du dégel d'un limon argileux : application aux chaussées et pergélisols alpins

Michel Dysli

Curiously, the thawing of frozen soils containing ice lenses has only been the subject of rare fundamental studies even though it is the cause of the greatest damage to constructions. The reduction of bearing capacity caused by the thawing of the ice lense ...

EPFL2007

Screening of sunflower cultivars for metal phytoextraction in a contaminated field prior to mutagenesis

Jean-Paul Schwitzguebel, Erika Nehnevajova

Sunflower can be used for the remediation of metal-contaminated soils. Its high biomass production makes this plant species interesting for phytoextraction and using sunflower oil for a technical purpose may improve the economic balance of phytoremediation ...

2005

Non-GMO approach for the improvement of heavy metal accumulation and extraction of high yielding crop species for efficient phytoextraction of contaminated soil

Erika Nehnevajova

Some plants able to take up heavy metals from contaminated soils offer a possibility to clean up sites contaminated with heavy metals. Plants thus act as a solar driven pump, which can extract and concentrate heavy metals from the environment. Since most o ...

EPFL2005