WebJun 29, 2010 · In the laboratory column, approximately 99% of the TCE was degraded, but cis-DCE or vinyl chloride did not accumulate in pore water. During abiotic degradation of TCE by FeS, the major transformation product can be acetylene, not cis-DCE. WebTCE and its degradation products were completely mineralized in 30 min, under a volume-averaged UV-C irradiant power of 35.7 W/L from a 1 kW medium-pressure mercury vapor arc lamp. TCE degraded primarily through hydroxyl radical-induced reactions and onlyto a low extentthrough direct UV photolysis and chlorine atom-induced chain reactions. The ...
Cometabolic degradation of TCE and DCE without intermediate …
WebThe degradation of trichloroethylene (TCE) to carbon dioxide (CO 2) and chloride (Cl-) has been reported to occur during thermal remediation of subsurface environments.The … WebJan 1, 2002 · The degradation of TCE, cis-DCE and mixtures of both was investigated in laboratory columns packed with zero-valent iron. Analyses show that TCE degradation is only marginally influenced by the ... general statute governing public servants
Natural attenuation of trichloroethene and its …
WebAug 1, 2024 · The possible reason be hind the reduction in TCE degradation was the excess presence of free Fe 2+ in the solution. Excessive presence of free Fe 2+ had … WebChlorinated ethenes are prevalent groundwater contaminants. To better constrain (bio)chemical reaction mechanisms of reductive dechlorination, the position-specificity of reductive trichloroethene (TCE) dehalogenation was investigated. Selective biotransformation reactions (i) of tetrachloroethene (PCE) to TCE in cultures of … WebThe average concentration of VOCs was 0.29 ± 0.47 μg/L. Chloroform and trichloroethylene (TCE) were the major pollutants, accounting for approximately 64.2% and 25.6% of the total concentration ... general statistics office of vietnam gdp