Results 11 to 20 of about 603 (197)

CO-driven electron and carbon flux fuels synergistic microbial reductive dechlorination [PDF]

open access: yesMicrobiome
Background Carbon monoxide (CO), hypothetically linked to prebiotic biosynthesis and possibly the origin of the life, emerges as a substantive growth substrate for numerous microorganisms.
Jingjing Wang   +10 more
doaj   +2 more sources

Actual decay of tetrachloroethene (PCE) and trichloroethene (TCE) in a highly contaminated shallow groundwater system

open access: yesEnvironmental Advances, 2021
The Quaternary shallow aquifer that served as the subject of research in this work is under the influence of strong anthropopressure manifested by extreme values of contamination with both organic and inorganic substances (max. TOC 1.6 g/l and Cl− 10 g/l)
Dorota Pierri
doaj   +1 more source

UAV-based sampling systems to analyse greenhouse gases and volatile organic compounds encompassing compound-specific stable isotope analysis [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
The study herein reports on the development and testing of sampling systems (and subsequent analytical setups) that were deployed on an unmanned aerial vehicle (UAV) for the purpose of analysing greenhouse gases (GHGs) and volatile organic compounds ...
S. Leitner   +6 more
doaj   +1 more source

Modeling Chlorine Isotope Trends during Sequential Transformation of Chlorinated Ethenes [PDF]

open access: yesEnvironmental Science & Technology, 2009
There is increasing interest in combined carbon-chlorine compound-specific isotope analysis (CSIA)to differentiate between contaminant sources and to assess transformation processes. However, the significant abundance of polychlorinated molecules with several heavy chlorine isotopes complicates the evaluation of chlorine isotope trends.
Hunkeler D, Van Breukelen BM, Elsner M
openaire   +4 more sources

Chlorinated Ethene Source Remediation: Lessons Learned [PDF]

open access: yesEnvironmental Science & Technology, 2012
Chlorinated solvents such as trichloroethene (TCE) and tetrachloroethene (PCE) are widespread groundwater contaminants often released as dense nonaqueous phase liquids (DNAPLs). These contaminants are difficult to remediate, particularly their source zones.
Hans F, Stroo   +10 more
openaire   +2 more sources

Full-scale application of ELS® microemulsion Technology for the Treatment of an Aquifer Contaminated with perchloroethylene and trichloroethylene via Ehnanced Reductive Dechlorination

open access: yesAcque Sotterranee, 2020
Mixed plumes of chlorinated organics and oxidized metals are a common contaminant at many sites. The oxidized metals can be mediated by the establishment of moderately reducing conditions.
Alberto Leombruni   +4 more
doaj   +1 more source

Application of in situ chemical oxidation technique with potassium permanganate for the remediation of a shallow aquifer contaminated with chlorinated solvents [PDF]

open access: yesGeologia USP. Série Científica, 2012
In situ chemical oxidation is a method that is frequently being used for the remediation of contaminated areas, since it presents an adequate efficiency in the reduction of the contaminant mass, particularly chlorinated ethenes, in a relatively short ...
Alaine Santos da Cunha   +1 more
doaj   +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

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

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

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