Radioactive contamination of the R. Enisey due to discharges from krasnoyarsk mining and chemical corporation

Atomic Energy ◽  
1993 ◽  
Vol 74 (2) ◽  
pp. 139-144 ◽  
Author(s):  
A. V. Nosov ◽  
M. V. Ashanin ◽  
A. B. Ivanov ◽  
A. M. Martynova
Keyword(s):  
Radioactive Contamination ◽  
Chemical Corporation ◽  
Krasnoyarsk Mining

Transformation of evaluation criteria of lands withdrawn from agricultural turnover due to radioactive contamination

2020 ◽  
pp. 23-27
Author(s):  
Olga Merzlova
Keyword(s):  
Economic Evaluation ◽  
Radioactive Contamination ◽  
Chernobyl Accident ◽  
Evaluation Criteria ◽  
Contaminated Land ◽  
Degradation Processes ◽  
Agricultural Use ◽  
Land Clearance

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. Due to the positive dynamics of the radiation situation, the issue of land return becomes relevant. However, in the period of exclusion of these lands the land clearance degradation processes were developing. The second part of the article is devoted to the issue of economic evaluation of the expediency of land return and the mutual coordination of the results of separate stages of complex ecological and economic evaluation. The research was carried out in Mogilev branch Institute of radiology (Republic of Belarus).

Transformation of assessment criteria for lands withdrawn from agricultural use due to radioactive contamination

2020 ◽  
Vol 0 (6) ◽  
pp. 24-30
Author(s):  
Olga Merzlova
Keyword(s):  
Economic Evaluation ◽  
Radioactive Contamination ◽  
Chernobyl Accident ◽  
Assessment Criteria ◽  
Contaminated Land ◽  
Criteria And Indicators ◽  
Agricultural Use ◽  
Natural Decay

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. During the natural decay of radionuclides there is a decrease in the activity of 137Cs and 90Sr in the soil. The issue of land return becomes relevant. The article describes the main stages of formation of the system of criteria and indicators of ecological and economic evaluation of the expediency of land return. The first part of the article is devoted to the issue of radiological evalation.

ELECTROLESS NICKEL

Alloy Digest ◽  
1986 ◽  
Vol 35 (4) ◽  
Keyword(s):  
Nickel Coating ◽  
Chemical Reduction ◽  
Electroless Nickel ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Sodium Hypophosphite ◽  
Work Piece ◽  
Nickel Ions ◽  
Continuous Contact ◽  
Chemical Corporation

Abstract ELECTROLESS NICKEL is a nickel coating deposited by chemical reduction of nickel ions. The most widely used reducing agent is sodium hypophosphite. The thickness of the deposited coating is uniform over all areas of the work-piece that are in continuous contact with fresh plating solution. The process is applicable to a wide variety of metal and nonmetal substrates. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion and wear resistance as well as heat treating and joining. Filing Code: Ni-332. Producer or source: Occidental Chemical Corporation.

METGLAS ALLOY 2826

Alloy Digest ◽  
1976 ◽  
Vol 25 (11) ◽  
Keyword(s):  
Magnetic Properties ◽  
Metallic Glass ◽  
Liquid State ◽  
Single Phase ◽  
Heat Treating ◽  
High Permeability ◽  
Metallic Material ◽  
Nickel Iron ◽  
Rapid Quench ◽  
Chemical Corporation

Abstract METGLAS Alloy 2826 (Fe40Ni40P14B6) is a ferromagnetic, high permeability, nickel-iron metallic glass which, when appropriately annealed, yields a material similar to the higher nickel containing permalloys in magnetic properties. Alloy 2826 is a single phase, opaque metallic material with a glass-like structure obtained by a very rapid quench from the liquid state. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on forming and heat treating. Filing Code: Ni-235. Producer or source: Allied Chemical Corporation.

Natural radionuclides 238U, 226RA, AND 222RN in the surface water of the ELKONSKY uranium-ore district (South Yakutiya)

2019 ◽  
Vol 46 (6) ◽  
pp. 613-620
Author(s):  
A. P. Chevychelov ◽  
P. I. Sobakin ◽  
L. I. Kuznetsova
Keyword(s):  
Chemical Composition ◽  
Surface Water ◽  
20Th Century ◽  
Radioactive Contamination ◽  
Raw Materials ◽  
Natural Radionuclides ◽  
Water Migration ◽  
Uranium Ore ◽  
Wide Scale ◽  
Ore District

Chemical composition of the surface water and the contents of the radionuclides 238U, 226Ra, and 222Rn in water was examined within the natural and man-made landscapes of South Yakutiya. It was demonstrated that intense water migration of these radionuclides from radioactive dump pits of the man-made landscapes of the Elkonsky uranium-ore district, which were created during the process of wide-scale exploration surveys for radioactive raw materials conducted during the last third of the 20th century, had occurred. Currently, the areas of water dissipation of 238U and 226Ra are detected at a distances of 2 km and greater from the source of the radioactive contamination along the outflow vector.

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