Вестник Кольского научного центра РАН. 2010, №3.

G.A. Evdokimova, A.Sh. Gershenkop, N.P. Mozgova, V.A. Myazin, N.V. Fokina PURIFICATION OF SOILS AND WASTE WATER FROM OIL PRODUCTS USING COMBINED METHODS IN CONDITIONS OF THE NORTH A method of purification of soils of the northwest part of Russia from various oil products: gas condensate, diesel oil, petrol, has been found. Purification of agricultural soil from light hydrocarbons is done during one vegetation period. During the three months of vegetation period gas condensate was completely removed from the soil, diesel oil was almost completely removed (over 90%). The content of oil products in the forest soil decreases slower than in agricultural soils. Residual amounts of heavy hydrocarbons were traced still one and a half year later. For bioremediation of soils there were recommended plants, that are highly resistant to the oil product contamination: Phalaroides arundinacea, Festuca pratensis, Phleum pratense, Leymus arenarius. There has been developed and patented the combined method of treatment of waste water, contaminated with hydrocarbons, based on inorganic coagulants and local oil-oxidizing bacteria. Keywords: oil products, soils, waste water, bioremediation. M.N. Palatnikov, O.B. Shcherbina, I.V. Biryukova, N.V. Sidorov, V.T. Kalinnikov A STUDY OF PECULIARITIES OF GROWTH DOMAIN STRUCTURE OF SINGLE CRYSTALS OF LiNbO3:Gd DEPENDING ON THE GROWING REGIMES Using a highly efficient and flexible image ThixometRanalyzer, the domain structures of single crystals grown under various conditions (both steady- and strongly unsteady-state) have been studied, resulting in the following recommendations for growth regimes: a) for alloyed lithium niobate crystals with a regularly inhomogeneous impurity distribution and, consequently, regular domain structure, with a period along the crystal growth axis essentially increasing with the melt level decrease and controlled by the ratio of the crystal stretching and rotation rates; b) for alloyed lithium niobate single crystals with a regular domain structure with the period along the crystal growth axis remaining unchanged as the melt level lowers; c) for alloyed lithium niobate single crystals with no regular domain structure and with a fairly homogeneous impurity distribution along the crystal growth direction. Keywords: lithium niobate crystals, regular domain structure, crystal growth. L.G. Isaeva, Y.R. Khimich THE STUDIES OF APHYLLOPHOROID FUNGI IN THE MURMANSK REGION Based on the published material and data obtained in the field conditions the analysis of the species composition study of aphyllophoroid fungi is presented. There are at present over 300 species of aphyllophoroid fungi in the Murmansk region, which belong to 50 families and 128 genera. The indicator fungi were found in old-growth spruce-dominated and pine-dominated forests. Rare species data are also provided. Keywords: aphyllophoroid fungi, biodiversity, Murmansk region. A.I. Nikolayev, G.Y. Ivanyuk, S.V. Krivovichev, V.N. Yakovenchuk, Ya.A. Pakhomovsky, L.G. Gerasimova, M.V. Maslova, Ye.A. Selivanova, D.V. Spiridonova, N.G. Konoplyova NANOPOROUS TITANOSILICATES: CRYSTAL CHEMISTRY, CONDITIONS OF LOCALIZATION IN ALKALINE INTRUSIONS, AND POSSIBILITY OF SYNTHESIS Nanoporous Ti-silicates with ion-exchange properties that absorb radioactive isotopes from aqueous solutions are widely used in different fields of industry. Of them, the main micro- and nanoporous titanosilicates (ETS-4, IONSIV IE-911,etc.) are synthetic analogues of zorite and sitinakite discovered in the Khibiny and Lovozero intrusions. These are mainly intended for selective extraction of radionuclides Cs-137 and Sr-90 from cold aqueous solutions. Besides, Ti-silicates can also be applied in extraction and concentration of heavy and rare elements, in membrane technologies, in production of components for optoelectronics and biosynthesis catalysts, in generation of mineral-organic, and nanomaterials, new types of lithium accumulators, etc. For the first trend of application, the most promising are zorite-chivruaiite, sitinakite, ivanyukite and other hetero-skeletal titanosilicates; lomonosovite, lamprophyllite, astrophyllite and other heterophyllosilicates are preferable for nanomaterials technology; and for electronics and catalysis - Li- bearing lintisite-punkaruaivite type titanosilicates. The paper presents data on localities, morphology, and crystal structure of lomonosovite, mirmanite, zorite, chivruaiite, sitinakite, ivanyukite group minerals (Na-T-ivanyukite, Na-C-ivanyukite, К-ivanyukite, and Cu-ivanyukite), and lintisite-punkaruaivite group minerals. These minerals are prototypes of the functional materials already generated or under development. The majority of the nanoporous hetero-skeletal silicates have been discovered within the world's largest alkaline massif, Khibiny, on the Kola Peninsula. A great part of the Khibiny rare minerals are formed due to the redistribution of rare elements from the rock-forming and accessory minerals of nepheline syenite and foidolite into hydrothermolites and metasomatic rocks produced by the ring-shaped foidolite intrusion. 115