RadChem 2018

Session

RER 4

RER.4

17 May 2018, 15:30

Casino Conference Centre

Conveners

RER 4

• Alexey Safonov (Frumkin"s Institute of Physical Chemistry Russian Academy of Science)
• Gabriele Wallner (Institut für Anorganische Chemie, Universität Wien)

499. A long-term monitoring of 14C in liquid discharges from the NPPs of the Czech Republic

Dr Michal Fejgl (National Radiation Protection Institute)

17/05/2018, 15:30

Radionuclides in the Environment, Radioecology

Verbal

During a normal operational regime of the nuclear power plants (NPPs) equipped with pressurized light water reactors (PWR), 3H and 14C are two biggest contributors to the effective dose of population. While 3H is responsible for the highest dose from all nuclides discharged in liquid effluents, 14C causes the highest dose from the nuclides liberated in airborne discharges. Monitoring of the...

743. Time and temperature depend changes of radionuclides sorption behavior of clays in Yeniseysky site environment

Yulia Konevnik (A.N. Frumkin Institute of Physical chemistry and Electrochemistry RAS (IPCE RAS))

17/05/2018, 15:45

Radionuclides in the Environment, Radioecology

Verbal

Sorption behavior is one of the most important characteristics of material considered to be used in engineered barrier on the sites for radioactive wastes repositories. One such site in Russia is located near Krasnoyarsk on the Yeniseyskiy site, in the Nizhnekansky rock massive. It is designed for intermediate and high level radioactive wastes, including self-heating radioactive wastes...

687. Modern geoecological situation of "Crystal” peaceful underground nuclear explosion vicinity (Siberian Plate)

Svetlana Artamonova (V.S,Sobolev Institute of geology and mineralogy of Siberian Branch of Russian academy of sciences)

17/05/2018, 16:00

Radionuclides in the Environment, Radioecology

Verbal

Modern geoecological situation of “Crystal” peaceful underground nuclear explosion (PUNE) area basing on the geochemical and the geophysical sounding data is considered. New data of the contents of radionuclides in surface and underground waters are obtained.
Geophysical transient electromagnetic sounding, in other words - time-domain electromagnetic sounding method (TDEM) along two profiles...

725. Radioactive medicinal springs: Searching for activating geomaterials

Viktor Goliáš

17/05/2018, 16:15

Radionuclides in the Environment, Radioecology

Verbal

Radioactive mineral waters (rich in dissolved 222Rn) are highly valued for their medical use. Therefore they have been intensively explored in last years (2005–2017) in the Lusatian and Saxothutingian units of the Bohemian Massif. Springs of radioactive medicinal water are bound up with the Cambrian/Ordovician orthogneisses and Tanvald granite of the Variscan age in the Lusatian unit and...

503. Molecular Insights into Uranium Adsorption to Granite Gained from TRLFS, EXAFS and EPMA Study

Dr Duoqiang Pan (Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China)

17/05/2018, 16:30

Radionuclides in the Environment, Radioecology

Verbal

Hexavalent uranium is a prominent radioactive contaminant in both sediments and aquifers around nuclear activity sites, and poses a potential health and environmental risk to the biosphere. Understanding on the detailed interaction at the solid-liquid interface between uranium and granite is crucial for the safety assessment of high level radioactive waste geological repository in granitic...

483. Contamination of forest fuel materials by long-lived radionuclides and estimation of its threat to human health during the wildfires in Belorussian part of Chernobyl exclusion zone

Dr Aliaksandr A. Dvornik (Institute of radiobiology of National academy of sciences of Belarus)

17/05/2018, 16:45

Radionuclides in the Environment, Radioecology

Verbal

After 30 years of accident on the Chernobyl NPP radioactive contamination in 30-km Chernobyl zone is determined by long-lived radionuclides of Cs-137, Sr-90 (with the half-life time 30.1 and 29.1 years, respectively) and alpha-emitting isotopes of Pu-238,239,240 and Am-241, also known as transuranium elements (TUE) (Sokolik 2004; Kashparov et al. 2003).
The overall aim of this article is to...

628. Ameriсium and cesium distribution among sequential extraction fractions in bottom sediments and reed from artificial reservoir

Dr Natalia Kuzmenkova (Lomonosov MSU)

17/05/2018, 17:00

Radionuclides in the Environment, Radioecology

Verbal

Artificial reservoir V-17 (Old Swamp) was formed as a result of the construction of dams in 1952 and 1954 (MAYAK Production Association), located in a natural depression relief. Intermediate level liquid radioactive wastes (ILLW) have been discharged to this reservoir since 1949. The water surface area of the lake is 0.13 km2 with the volume of 0.36 Mm3. The maximum depth is 6.5 m with the...