IKBFU's Vestnik

2013 Issue №01

The transformation of roadside geosystems of the Smolensk region under the impact of motor transport complex

Abstract

This article shows that the annual increase in traffic in the Smolensk region affects the environmental features of roadside land pollution by oil products, heavy metals, waste, calcium chloride, and magnesium. The author emphasizes an increase in traffic accidents and road-traffic fatality on the Moscow — Minsk international route. The environmental — geographical situation on regional roads is proved to be more favorable.

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The geoecological conditions of apiculture product manufacturing in the Kaliningrad region

Abstract

This article focuses on the problem of agrarian land use transformation in the Kaliningrad region in 1960-2011. The author offers and assessment of the geoecological conditions of administrative units, as well as an index of favourable apiculture development conditions.

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The impact of changes in dissolved organic carbon concentration in a solution on the sorption of platinum compounds

Abstract

This article considers the impact of changing dissolved organic carbon concentration in a solution on the sorption of platinum (II), (IV) compounds (K2PtCl4, H2PtCl6) at different soil horizons. The authors prove that even small concentrations of dissolved organic carbon play an important role in platinum sorption in soil and background minerals.

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Protection of steel from corrosion and hydrogen absorption by organic inhibitors: experimental and quantum-chemical studies

Abstract

The step-strip anodic dissolution technique was used to obtain concentration profiles of cathodic evolved H2 across the depth of Cr-Ni1810 steel under corrosion in water-salt media in the presence of SRB. The proposed approximation of the experimentally obtained distribution of hydrogen along the depth of steel by means of standard Gaussian function made it possible to establish the integral hydrogen content of the sub-layer (up to 80 μm) with high degree of accuracy. The efficiency of protective actions of the studied organic compounds against corrosion and hydrogen absorption by steel were compared with the data of quantum chemical computations performed for isolated molecules of the studied inhibitors with the help of the MNDO method. The results obtained point to
a difference in the protective mechanisms of the studies inhibitors in case of anticorrosion action and hydrogen absorption by steel.

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