Chemical Safety Science, 2017, Volume 1, No 1, p. 101 — 122

 

Elimination of chemical contamination consequences

 

UDC 533.9.082.74                                                                         Download PDF (RUS)

DOI: 10.25514/CHS.2017.1.11437

 

DEVELOPMENT OF TECHNOLOGY AND METHOD OF CLEANING UP CHEMICALLY CONTAMINATED SOILS WITH THE PURPOSE OF ELIMINATION OF ACCUMULATED ENVIRONMENTAL DAMAGE

M. V. Konstantinovskaya¹*, V. S. Grigor’ev¹, V. V. Oliskevich², and G. Raevskaya³

¹OOO EKOENERGOTEKH, Moscow, Russia

²Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, Moscow, Russia

³OOO Nauchno-Issledovatel’skii Institut Tekhnologii Organicheskoi, Neorganicheskoi Khimii i Biotekhnologii, Saratov, Russia

⁴Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia

Received April 11, 2017

Published June 26, 2017

A promising approach to cleaning up chemically contaminated soils at the site of pollution (in situ) without soil excavation, based on microwave technology is proposed. The effect of microwave frequency electromagnetic field on soil samples (sand) contaminated with different kinds of substances, i.e. residues of representative phosphorus-containing pesticides, petroleum products (kerosene), and hazardous chemicals (acrylonitrile) has been considered. The method for cleaning up soils is performed by exposing contaminated soil samples to an electromagnetic field with a frequency of 2450 MHz, generated by a Magnetron M-104 generator with a consumed power of 0.6 kW. The influence of moisture content and introduction of inorganic and organic additives on the efficiency of soil decontamination has been established.

 Keywords: chemically contaminated soils, microwave field, decontamination efficiency, lab-scale microwave setup, soil decontamination technology, microwave effect.