RadChem 2018

Session

SEP 5

SEP.5

18 May 2018, 10:30

Casino Conference Centre

Conveners

SEP 5

• Mojmír Němec (CTU FNSPE)
• Jiří Janda (-)

478. Deep learning approach for An/Ln separation problem

Artem Mitrofanov (Moscow State University)

18/05/2018, 10:30

Separation Methods, Speciation

Verbal

A problem of separation of trivalent f-elements is one of key problems of spent fuel reprocessing as well as processing of lanthanide-containing mineral resources. Chemical similarity leads to development of long cascade separation equipment with low efficiency on each step. Development of new selective ligands may allow us to simplify separation scheme and increase process efficiency.
"Deep...

554. Crystallization purification full scale test of U-Pu mixture

Dr Tatiana Boytsova (JSC VNIINM)

18/05/2018, 10:45

Separation Methods, Speciation

Verbal

Nowadays the concept of closed nuclear fuel cycle (CNFC) for fast neutron reactors (FR) is developed in Russia. CNFC can be implemented for FR with sodium coolant using mixed uranium-plutonium oxide (MOX) fuel and for reactors with lead coolant using mixed U-Pu-(Np-Am) nitride (MINT) fuel.
By “PRORYV” Project the combined “РН-technology” was proposed as the technology for reprocessing of MOX...

557. Study on chemical separation method for the analysis of isotope ratio of 135Cs to 137Cs in soil

Dr Asako Shimada (Japan Atomic Energy Agency)

18/05/2018, 11:00

Separation Methods, Speciation

Verbal

Study on chemical separation method for the analysis of isotope ratio of 135Cs to 137Cs in soil
Asako Shimada, Taro Shimada, Seiji Takeda, Tetsuji Yamaguchi
Nuclear Safety Research Center, Japan Atomic Energy Agency
In order to confirm the completion of the decommissioning of a facility, the radioactivity concentration of soil at the site has to comply with criteria for site release....

620. A magnetic nanocomposite based on natural hydrocolloids for efficient removal of liquid radioactive waste

Miroslav Cernik (Technical University of Liberec)

18/05/2018, 11:15

Separation Methods, Speciation

Verbal

Efficient remediation of liquid radioactive waste, produced as in research and medicine, is crucial for increasing safety during the necessary storage of this material. A novel bio-magnetic nano-composite sorbent based on a natural product (Karaya gum) and magnetite nanoparticles was tested for the efficient removal of radioactive phosphorus 32P from liquid radioactive waste. This non-toxic...

773. Interaction of U(VI) with α-isosaccharinic acid under acidic conditions: characterization of the formed complexes

Mr Hannes Brinkmann (Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology)

18/05/2018, 11:30

Separation Methods, Speciation

Verbal

Cellulose is a very common organic polymer and also present in considerable amounts in low and intermediate level wastes (LILW). Since it is considered to stabilize LILW with cementitious materials and to use cement-based materials as construction and backfilling material, the alkaline degradation of cellulosic material has to be taken into account. This process will lead to the formation of...

631. Crystal structure and solubility of radium sulfate and carbonate

Artem Matyskin (Chalmers University of Technology)

18/05/2018, 11:45

Chemistry of Nuclear Fuel Cycle, Radiochemical Problems in Nuclear Waste Management

Verbal

Radium is the heaviest alkaline-earth metal. It has no stable isotopes and the most long-lived and abundant isotope is $^{226}$Ra with a half-life of 1600 years. Radium and its short-lived daughters are among the most radiotoxic elements. Enhanced radium concentrations can be found in different waste streams: uranium and other metal mining, fossil fuel combustion, oil and gas production among...