84 research outputs found
Approaches to rehabilitation of radioactive contaminated territories
BACKGROUND: Accidents at nuclear fuel cycle plants may lead to contamination of areas of land and water. Cheap and available sorbents including natural aluminosilicates can be used for rehabilitation and decontamination of large volumes of radioactively contaminated water, including drinking water, prevention of migration of radionuclides into ground and surface waters through the soil and returning contaminated soil to farming. RESULTS AND DISCUSSION: A comparative study of sorption properties of various natural and surface-modified aluminosilicates with respect to caesium is made. It is shown that sorption features of surface-modified aluminosilicates for Cs were improved by 100-1000 times compared with respective natural aluminosilicates. It is shown that surface modification of glauconite by a mixed nickel-potassium ferrocyanide phase allows it to considerably increase its specificity (caesium distribution coefficients (2.9 Β± 0.8)Π§103 mL g-1 for natural and (4.5 Β± 0.5)Π§105 mL g-1 for modified glauconite) as well as making it selective to caesium in the presence of other alkaline ions and also provides irreversible caesium sorption. CONCLUSIONS: Due to improved features, modified aluminosilicates can be more successful than natural ones when used for rehabilitation of radioactive contaminated territories (including agriculture) and water areas, as well as for decontamination of liquid radioactive wastes and for creation of geochemical barriers in solid radioactive waste storage. Β© 2013 Society of Chemical Industry
ChemInform Abstract: P-HYDROXY-BENZOLE 16. MITT. EINFLUSS VON SUBSTITUENTEN AUF DIE FREQUENZ DER S-O-VALENZSCHWINGUNGEN VON P-HYDROXY-DIPHENYLSULFOXIDEN UND -DIPHENYLSULFONEN
ChemInform Abstract: WIRKUNG VON PYRIDIN BEI DER HYDROMETHOXYCARBONYLIERUNG VON OLEFINEN
An integral representation of Hermitian positive kernels of mixed type and the generalized nehari problem. I
Tutankhamun and the Treasures of His Tomb
ΠΠ½ΠΈΠ³Π° ΠΈΠ·Π²Π΅ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠ²Π΅ΡΡΠΊΠΎΠ³ΠΎ Π΅Π³ΠΈΠΏΡΠΎΠ»ΠΎΠ³Π° ΡΠ°ΡΡΠΊΠ°Π·ΡΠ²Π°Π΅Ρ ΠΎΠ± ΠΈΡΡΠΎΡΠΈΠΈ ΠΎΡΠΊΡΡΡΠΈΡ Π°Π½Π³Π»ΠΈΠΉΡΠΊΠΈΠΌ Π°ΡΡ
Π΅ΠΎΠ»ΠΎΠ³ΠΎΠΌ ΠΠΎΠ²Π°ΡΠ΄ΠΎΠΌ ΠΠ°ΡΡΠ΅ΡΠΎΠΌ Π³ΡΠΎΠ±Π½ΠΈΡΡ Π’ΡΡΠ°Π½Ρ
Π°ΠΌΠΎΠ½Π°. Π‘ΠΎΠ΄Π΅ΡΠΆΠΈΡΡΡ ΠΎΠ±ΡΡΠΎΡΡΠ΅Π»ΡΠ½Π°Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ° Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ Π’ΡΡΠ°Π½Ρ
Π°ΠΌΠΎΠ½Π°, ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΡΠ°ΠΌΠΎΠΉ Π³ΡΠΎΠ±Π½ΠΈΡΡ ΠΈ Π½Π°ΠΉΠ΄Π΅Π½Π½ΡΡ
Π² Π½Π΅ΠΉ ΠΏΡΠ΅Π΄ΠΌΠ΅ΡΠΎΠ²
Effects of elastic anisotropy on the dimensional effect in the diffuse scattering of x-rays by polycrystalline aggregates
Spectrum of the short-range order parameters [in ordered alloys] as a function of electron concentration using the approximation of long-range oscillatory interactions
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