Cometabolic degradation of dichloroethenes by Comamonas testosteroni RF2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F17%3A63516068" target="_blank" >RIV/70883521:28110/17:63516068 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.chemosphere.2017.07.156" target="_blank" >http://dx.doi.org/10.1016/j.chemosphere.2017.07.156</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chemosphere.2017.07.156" target="_blank" >10.1016/j.chemosphere.2017.07.156</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cometabolic degradation of dichloroethenes by Comamonas testosteroni RF2

Popis výsledku v původním jazyce

An environmental isolate Comamonas testosteroni strain RF2, which has been found to cometabolize trichloroethene (TCE) in the presence of phenol and sodium lactate as growth substrates, was tested to investigate its capacity for degrading 1,2-cis-dichloroethene (cDCE), 1,2-trans-dichlorothene (tDCE), and 1,1-dichloroethene (1,1DCE). Degradation assays were performed for single DCEs, as well as for a mixture of DCEs with TCE, which resembled contaminated plume in groundwater. RF2 was capable of efficiently removing all three dichloroethenes (DCEs) at the initial aqueous concentrations of 6.01 mg L−1 for cDCE, 3.80 mg L−1 for tDCE and 0.65 mg L−1 for 1,1DCE, with a removal efficiency of 100% for cDCE, 65.8% for tDCE, and 46.8% for 1,1DCE. Furthermore, complete removal of TCE, cDCE and 1,1DCE (122.5 μg L−1, 84.3 μg L−1 and 51.4 μg L−1, respectively) was observed in a mixture sample that also contained 72.33 μg L−1 of tDCE, which was removed to the amount of 72.3%. Moreover, degradation of cDCE (6.01 mg L−1) led to a 93.8% release of inorganic chloride, and 2,2-dichloroacetaldehyde was determined as the first intermediate of cDCE transformation. The findings of this study suggest that the strain RF2 exhibits the potential to remediate groundwater contaminated with less chlorinated ethenes.

Název v anglickém jazyce

Cometabolic degradation of dichloroethenes by Comamonas testosteroni RF2

Popis výsledku anglicky

An environmental isolate Comamonas testosteroni strain RF2, which has been found to cometabolize trichloroethene (TCE) in the presence of phenol and sodium lactate as growth substrates, was tested to investigate its capacity for degrading 1,2-cis-dichloroethene (cDCE), 1,2-trans-dichlorothene (tDCE), and 1,1-dichloroethene (1,1DCE). Degradation assays were performed for single DCEs, as well as for a mixture of DCEs with TCE, which resembled contaminated plume in groundwater. RF2 was capable of efficiently removing all three dichloroethenes (DCEs) at the initial aqueous concentrations of 6.01 mg L−1 for cDCE, 3.80 mg L−1 for tDCE and 0.65 mg L−1 for 1,1DCE, with a removal efficiency of 100% for cDCE, 65.8% for tDCE, and 46.8% for 1,1DCE. Furthermore, complete removal of TCE, cDCE and 1,1DCE (122.5 μg L−1, 84.3 μg L−1 and 51.4 μg L−1, respectively) was observed in a mixture sample that also contained 72.33 μg L−1 of tDCE, which was removed to the amount of 72.3%. Moreover, degradation of cDCE (6.01 mg L−1) led to a 93.8% release of inorganic chloride, and 2,2-dichloroacetaldehyde was determined as the first intermediate of cDCE transformation. The findings of this study suggest that the strain RF2 exhibits the potential to remediate groundwater contaminated with less chlorinated ethenes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemosphere

ISSN

0045-6535

e-ISSN

—

Svazek periodika

186

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

919-927

Kód UT WoS článku

000411846900107

EID výsledku v databázi Scopus

2-s2.0-85027523398