Prospects for using various modifications sorbents in the natural environments purification from oil products in the Kola North conditions
Автор: Fokina N.V.
Журнал: Вестник Мурманского государственного технического университета @vestnik-mstu
Рубрика: Геоэкология
Статья в выпуске: 1 т.22, 2019 года.
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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...
Natural environments, oil, pollution, bioremediation, sorbents, bacteria
Короткий адрес: https://sciup.org/142219991
IDR: 142219991 | DOI: 10.21443/1560-9278-2019-22-1-101-108