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Environmental Earth Sciences

Erschienen in:

01.06.2013 | Original Article

Reductive dechlorination of polychlorinated biphenyls (PCBs) by ultrasound-assisted chemical process (UACP)

verfasst von: J. R. Chen, Daeik Kim, Joon-Seok Park, Kyung-Ik Gil, Teh Fu Yen

Erschienen in: Environmental Earth Sciences | Ausgabe 3/2013

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Abstract

The dechlorination of aqueous polychlorinated biphenyls (PCBs) using the ultrasound-assisted chemical process (UACP), which is a combination of ultrasonic irradiation and radical generations using di-tert-butyl peroxide as a radical initiator and ferrous ion as a catalyst at moderate temperature in alkaline 2-propanol, was demonstrated with a high reduction of PCBs. A commercial PCB-containing compound, Aroclor 1260, was also decomposed with the removal efficiency of 97 % achieved within 3 h of UACP. The gas chromatograph was used as a quantitative method to measure the decomposition rate of PCBs. The competitive elimination among the ortho (2-position), meta (3-position), and para (4-position) chlorine atoms of PCB was also identified.

Vorheriger Artikel Groundwater use by plants in a semi-arid coal-mining area at the Mu Us Desert frontier

Nächster Artikel Distribution of biochemical constituents in the surface sediments of western coastal Bay of Bengal: influence of river discharge and water column properties

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Titel: Reductive dechlorination of polychlorinated biphenyls (PCBs) by ultrasound-assisted chemical process (UACP)
verfasst von: J. R. Chen
Daeik Kim
Joon-Seok Park
Kyung-Ik Gil
Teh Fu Yen
Publikationsdatum: 01.06.2013
Verlag: Springer-Verlag
Erschienen in: Environmental Earth Sciences / Ausgabe 3/2013
Print ISSN: 1866-6280
Elektronische ISSN: 1866-6299
DOI: https://doi.org/10.1007/s12665-012-2191-0

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