Development of Bio Sorption Composites of a Destructive Type for Purification of Soil Contaminated with Pesticides

1Khokhlov, AV  https://оrcid.оrg/0000-0001-5340-1869
1Khokhlova, LY  https://оrcid.оrg/0000-0002-2201-1312
1Titarenko, MV  https://оrcid.оrg/0000-0001-7232-5320
1Institute of Sorption and Endoecology Problems, NAS of Ukraine
Nauka innov. 2020, 16(3):69-80
https://doi.org/10.15407/scin16.03.069
Section: Research and Engineering Innovative Projects of the National Academy of Sciences of Ukraine
Language: Ukrainian
Abstract: 
Introduction. Reducing soil pollution with pesticides is one of the important environmental issues. One of the ways to solve this is bioremediation of soils, in particular, the creation of biosorption complexes in which microorganisms-destructors are fixed on carriers that are sorption-active against the pollutant.
Problem Statement. Environmental pollution with chemical compounds that are used in agriculture is on of the problems of our time. Therefore, it is important to develop and implement the latest technologies for cleaning and restoring soils contaminated with agrochemicals.
Purpose. Investigation of the physicochemical, sorption and destructive (with respect to pesticides) properties of biologically modified sorbents based on plant materials for cleaning soils from pesticidal contaminants. Detoxification of accumulated pesticides in soils in order to restore them, increase productivity and increasing productivity and further obtaining high-quality and environmentally friendly agricultural products.
Materials and Methods. The amount of pesticides in the soil was determined by high performance liquid chromatography. The selection of microorganisms, potential destructors of pesticides was carried out by the method of accumulative cultures from soils (chernozems) contaminated with pesticides.
Results. A destructive biosorption detoxicant based on plant materials was created to neutralize pesticides of various chemical composition. The optimal conditions for the modification of specialized biosorption complexes of destructive action relative to pesticides are determined. The technology of manufacturing and use of biosorptive detoxicant has been developed and the technological process of its production has been worked out.
Conclusions. Tests at the pilot industrial site showed the high efficiency of the biosorption composite for cleaning soils from the accumulation of pesticides, which indicates the prospects of its use in the agricultural sector.
Keywords: biosorption composite, detoxification, microorganisms-destructors, pesticides, plant waste