Results 11 to 20 of about 594 (190)

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

Environmental 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

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

Atmospheric 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, W. Feichtinger, S. Mayer, F. Mayer, D. Krompetz, R. Hood-Nowotny, A. Watzinger   +6 more
doaj   +1 more source

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

Environmental 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

Chlorinated Ethene Source Remediation: Lessons Learned [PDF]

Environmental 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, Andrea, Leeson, Jeffrey A, Marqusee, Paul C, Johnson, C Herb, Ward, Michael C, Kavanaugh, Tom C, Sale, Charles J, Newell, Kurt D, Pennell, Carmen A, Lebrón, Marvin, Unger   +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

Acque 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, Federica Morlacchi, Linda Collina, Daniel Leigh, Mike Mueller   +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]

Geologia 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, Reginaldo Antonio Bertolo   +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

Sustainable 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, Hui-Ping Chuang, Delia B. Senoro, Tsair-Fuh Lin, Liang-Ming Whang, Yi-Ting Chiu, Yi-Hsuan Chen   +6 more
doaj   +1 more source

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

Frontiers 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, Pierre eRossi, Maria V. Brennerova, Monika eStavelova, Christof eHolliger   +4 more
doaj   +1 more source

Heat-Activated Persulfate Oxidation of Chlorinated Solvents in Sandy Soil

Journal 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, Xijun Gong, Shijun Song, Fengjun Zhang, Cong Lu   +4 more
doaj   +1 more source

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

Frontiers 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, Vartul Sangal, Hans-Peter Klenk, Imen Nouioui   +3 more
doaj   +1 more source