Results 21 to 30 of about 81,585 (259)

Diffusive‐Dispersive Isotope Fractionation of Chlorinated Ethenes in Groundwater: The Key Role of Incomplete Mixing and Its Multi‐Scale Effects

open access: yesWater Resources Research, 2023
Diffusive‐dispersive processes are ubiquitous in porous media with important implications for solute transport in many natural and engineered systems; however, their effects on isotope fractionation of organic contaminants in subsurface flow‐through ...
Henning Wienkenjohann   +2 more
semanticscholar   +1 more source

A review in the current developments of genus Dehalococcoides, its consortia and kinetics for bioremediation options of contaminated groundwater

open access: yesSustainable Environment Research, 2018
This article reviews the current developments in genus Dehalococcoides as key dechlorinating bacteria in chlorinated ethene contaminated sites. The presence of chlorinated ethenes in environment had been a concern for more than five decades as it ...
Donamel M. Saiyari   +6 more
doaj   +1 more source

Can or cannot green rust reduce chlorinated ethenes? [PDF]

open access: yesEnergy Procedia, 2018
Green rusts (GRs) are Fe 2+ , Fe 3+ layered double hydroxides that are widely investigated for the reduction of inorganic and organic pollutants in soils and groundwaters. Of particular interest is the use of GRs for the reduction of chlorinated ethenes, but existing literature shows contrasting results.
Mangayayam, Marco C.   +2 more
openaire   +3 more sources

Validation of an integrative methodology to assess and monitor reductive dechlorination of chlorinated ethenes in contaminated aquifers

open access: yesFrontiers in Environmental Science, 2016
Bioremediation of tetra-and trichloroethene-contaminated aquifers is frequently hampered due to incomplete dechlorination to the more toxic dichloroethene (DCE) and vinyl chloride (VC), indicating insufficient knowledge about the biological mechanisms ...
Sonia-Estelle eTarnawski   +4 more
doaj   +1 more source

Identification of abiotic and biotic reductive dechlorination in a chlorinated ethene plume after thermal source remediation by means of isotopic and molecular biology tools [PDF]

open access: yes, 2016
Thermal tetrachloroethene (PCE) remediation by steam injection in a sandy aquifer led to the release of dissolved organic carbon (DOC) from aquifer sediments resulting in more reduced redox conditions, accelerated PCE biodegradation, and changes in ...
Badin, Alice   +5 more
core   +2 more sources

Heat-Activated Persulfate Oxidation of Chlorinated Solvents in Sandy Soil

open access: yesJournal of Spectroscopy, 2014
Heat-activated persulfate oxidative treatment of chlorinated organic solvents containing chlorinated ethenes and ethanes in soil was investigated with different persulfate dosages (20 g/L, 40 g/L, and 60 g/L) and different temperatures (30°C, 40°C, and ...
Jialu Liu   +4 more
doaj   +1 more source

Abiotic degradation of chlorinated ethanes and ethenes in water [PDF]

open access: yesEnvironmental Science and Pollution Research, 2012
Chlorinated ethanes and ethenes are among the most frequently detected organic pollutants of water. Their physicochemical properties are such that they can contaminate aquifers for decades. In favourable conditions, they can undergo degradation. In anaerobic conditions, chlorinated solvents can undergo reductive dechlorination.Abiotic dechlorination is
Tobiszewski, Marek, Namieśnik, Jacek
openaire   +2 more sources

Multiple Dual C−Cl Isotope Patterns Associated with Reductive Dechlorination of Tetrachloroethene [PDF]

open access: yes, 2017
Dual isotope slopes are increasingly used to identify transformation pathways of contaminants. We investigated if reductive dechlorination of tetrachloroethene (PCE) by consortia containing bacteria with different reductive dehalogenases (rdhA) genes can
Badin, Alice   +4 more
core   +2 more sources

Mini-review: effect of temperature on microbial reductive dehalogenation of chlorinated ethenes: a review.

open access: yesFEMS Microbiology Ecology, 2022
Temperature is a key factor affecting microbial activity and ecology. An increase in temperature generally increases rates of microbial processes up to a certain threshold, above which rates decline rapidly.
Mohammad Sufian Bin Hudari   +3 more
semanticscholar   +1 more source

Comparative Genomic Study of Vinyl Chloride Cluster and Description of Novel Species, Mycolicibacterium vinylchloridicum sp. nov.

open access: yesFrontiers in Microbiology, 2021
Advanced physicochemical and chemical absorption methods for chlorinated ethenes are feasible but incur high costs and leave traces of pollutants on the site.
Carlos Cortés-Albayay   +3 more
doaj   +1 more source

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