Studies of the effectiveness of the chemical decomposition of polychlorinated biphenyls in alluvial meadow soils in situ under the influence of special physicochemical active compounds

Polychlorinated biphenyls (PCB) are persistent organic pollutants used worldwide up 1990s. Although their use has been heavily restricted, PCB can be found in contaminated soils and sediments. The interaction of polychlorobiphenyls (PCBs) in soils with an alkaline amino acid reagent (NaL) and humic...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 848; no. 1; pp. 12114 - 12120
Main Authors Yu Aladin, D, Sevostyanov, S M, Ph Deeva, N, Demin, D V
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2020
Subjects
Amino acids
Aromatic compounds
Chlorine
Humic acids
Infrared spectroscopy
Macromolecules
PCB
Pollutants
Polychlorinated biphenyls
Reagents
Sediments
Soil contamination
Spectrum analysis
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Summary:Polychlorinated biphenyls (PCB) are persistent organic pollutants used worldwide up 1990s. Although their use has been heavily restricted, PCB can be found in contaminated soils and sediments. The interaction of polychlorobiphenyls (PCBs) in soils with an alkaline amino acid reagent (NaL) and humic acids was studied. According to IR spectroscopy, intermolecular interaction of PCBs with NaL reagent was revealed. Chromatography and IR spectroscopy revealed the transformation and removal of chlorine in the aromatic ring of PCB macromolecules under the influence of an amino acid reagent. In the experiment, from 32 to 77% of PCBs undergo soil degradation, depending on the concentration of the reagent and the frequency of its introduction into soil samples.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/848/1/012114