Chemical degradation of PCDD/F in contaminated sediment

• Autorzy: Hrabák P. , Homolková M. , Wacławek S. , Černík M.

Identyfikatory

DOI

10.1515/eces-2016-0034

Warianty tytułu

PL

Chemiczna degradacja PCCD/F w zanieczyszczonym sedymencie

• Języki publikacji: EN

Abstrakty

EN

Due to the extreme toxicity of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F), the remediation of PCDD/F aquifer source zones is greatly needed; however, it is very difficult due to their persistence and recalcitrance. The potential degradability of PCDD/F bound to a real matrix was studied in five systems: iron in a high oxidation state (ferrate), zero-valent iron nanoparticles (nZVI), palladium nanopowder (Pd), a combination of nZVI and Pd, and persulfate (PSF). The results were expressed by comparing the total toxicity of treated and untreated samples. This was done by weighting the concentrations of congeners (determined using a standardized GC/HRMS technique) by their defined toxicity equivalent factors (TEF). The results indicated that only PSF was able to significantly degrade PCDD/F. Toxicity in the system decreased by 65% after PSF treatment. Thus, we conclude that PSF may be a potential solution for in-situ remediation of soil and groundwater at PCDD/F contaminated sites.

Słowa kluczowe

EN

PCDD/F; ferrate; nZVI; Pd; persulfate; degradation

PL

PCDD/F; nadżelazian; nZVI; Pd; nadsiarczan; degradacja

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. S
• Rocznik: 2016
• Tom: Vol. 23, nr 3
• Strony: 473--482
• Opis fizyczny: Bibliogr. 29 poz., rys., wykr., tab.

Twórcy

autor

Hrabák P.

• Faculty of Mechatronics, Informatics and Interdisciplinary Studies & the Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2 Liberec, 46117, Czech Republic

autor

Homolková M.

• Faculty of Mechatronics, Informatics and Interdisciplinary Studies & the Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2 Liberec, 46117, Czech Republic

autor

Wacławek S.

• Faculty of Mechatronics, Informatics and Interdisciplinary Studies & the Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2 Liberec, 46117, Czech Republic

autor

Černík M.

• Faculty of Mechatronics, Informatics and Interdisciplinary Studies & the Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2 Liberec, 46117, Czech Republic

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.