Prospects for using various modifications sorbents in the natural environments purification from oil products in the Kola North conditions

Studies on the effectiveness of the using aluminosilicate mineral vermiculite of various modifications as a sorbent for the purification of natural media from petroleum products have been carried out. It has been shown that the treatment of the sorbent with a hydrophobic modifier "Penta-804" makes it possible to obtain the hydrophobic sorbent, which has high water resistance, it is able to be retained for a long time on the water surface and is nontoxic for biota. The highest efficiency is demonstrated by sorbents, on the surface of which the strains of the aboriginal oil-destructive bacteria Pseudomonas spp. have been immobilized. They allow achieving a high degree of purification (99.8 %). A high degree of water purification with covalent cross-linking sorbent (76.26 %) and bacterial suspension (51.34 %) has been also noted. Due to the desorption processes the use of sorbents for a long time is inadvisable. The use of vermiculite sorbent by scattering on the water surface proved to be more effective than in mats, which is associated with a more complete coating of the contamination surface...