Molecular Detection of Resistance and Transfer Genes in Environmental Samples

Grohmann, Elisabeth; Arends, Karsten

doi:10.1007/978-94-007-1591-2_5

Cited by 2 publications

(1 citation statement)

References 126 publications

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“…Polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and synthetic dyes are among the various EOPs detected in marine environment . Azo dyes, which mostly consist of aromatic moieties linked together by N=N bonding, are among the most notorious and widespread environmental pollutants associated with textile, cosmetic, food and leather industries (Pereira and Alves, 2012;Hamdaoui and Merouani, 2017). Since dyes are designed to resist degradation, these are chemically stable, non-biodegradable and exist as substances possess toxic and carcinogenic effects on aquatic life, which thus cause the destruction of ecosystems (Konstantinou and Albanis, 2004;Haddad et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Acetone photoactivated process: application to the degradation of refractory organic pollutants in very saline waters

Bendjama¹,

Merouani

Hamdaoui

et al. 2019

Water & Environment J

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Herein, we show the first report on the degradation of hazardous organic pollutants in very saline matrice (seawater) using acetone photoactivated process at 253.7 nm. Chloral black (CB), a very persistent dye of well‐established carcinogenic and mutagenic effects, was chosen a substrate model. The photodegradation of CB was monotonically increased in the presence of acetone. About 90% of CB (25.5 µM) was removed after 30 minutes in the presence of 50 mM of acetone whereas only 30% of removal was achieved under UV alone. The process is very sensitive to operational conditions. Chemical probes' tests using oxygen and KI have evidenced that methyl radical (CH3●) is the primarily radical involved in the CB degradation upon UV/acetone treatment. The formation of CH3● is thermodynamically favourable since the energy per Einstein of 253.7 nm light (~113 kcal) is large enough to break the C–C bond in the acetone molecule (70 kcal).

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