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  • 1 Novosibirsk State University ‘Molecular Design and Ecologically Safe Technologies’ REC-008 Ul. Pirogova 2 Novosibirsk 630090 Russia
  • | 2 Institute of Mineralogy and Petrography SB RAS Pr. Ac. Koptyuga 3 Novosibirsk 630090 Russia
  • | 3 Technical University of Bari Department of Environmental Engineering and Sustainable Development 74100 Taranto Italy
  • | 4 Institute of Solid State Chemistry and Mechanochemistry SB RAS Ul. Kutateladze 3 Novosibirsk 630128 Russia
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Abstract  

Natural dredged sediments contaminated by PCBs from the heavy industrialized harbor of Taranto (S. Italy) on the Ionian Sea, previously dechlorinated by mechanical activation in different ball mills (SPEX and AGO-2), together with synthetic mixtures emulating the contaminated sediments, were submitted to thermogravimetric and calorimetric measurements as well as to X-ray powder diffraction in order to clarify the dechlorination reaction mechanism. Both major sediment components, i.e., carbonates and clay minerals, were found to be affected by the mechanical activation. As trace pollutants like PCBs are concentrated in clays, the mechanical activation of sediments increases the release of pollutants yielding a more active decontamination. DSC results were less informative as calorimetric peaks from different thermal events were found to overlap.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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