Dialysis Membranes Based on Microfiltration Elements for Separating the Components of Npp Radioactive Wastewater Via Precipitation

Chugunov, A. S.; Vinnitskii, V. A.

doi:10.1007/s10512-020-00625-3

Cited by 3 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This will reduce the capital and operating costs of the plants. In our opinion, commercially available polypropylene filter cartridges are the most promising carriers for sedimentary membranes [12,13]. The main advantage of these elements is the inertness of the material and the possibility of a sharp decrease in the volume of waste elements by pressing.…”

Section: Process Solution Preparation Unitmentioning

confidence: 99%

Minimization of radioactive waste volume from nuclear power plants using precipitation-membrane technologies

Vinnitskii

Chugunov

2022

BIO Web Conf.

View full text Add to dashboard Cite

The purpose of this study is the development and experimental testing on simulation solutions of a precipitation-membrane method for fractionation of liquid radioactive waste and sorption post-treatment of the filtrate. The choice of processing method is based on the analysis of factors affecting the efficiency of ion-exchange purification of solutions; properties of complex compounds of polyvalent metals; characteristics of commercially available membrane elements and economic aspects of the preparation and disposal of radioactive waste. The basic idea is to use the internal properties of solutions to isolate polyvalent cations and acidoligands in the form of poorly soluble compounds in the volume of an inert polypropylene element, which will increase the efficiency of ion-exchange post-treatment and reduce the amount of waste. The architecture and operating parameters of the experimental setup are designed to provide favorable conditions for the formation in solution of complexes (ion pairs) of polycharged cations with acid ligands of various nature.

show abstract

Section: Process Solution Preparation Unitmentioning

confidence: 99%

Minimization of radioactive waste volume from nuclear power plants using precipitation-membrane technologies

Vinnitskii

Chugunov

2022

BIO Web Conf.

View full text Add to dashboard Cite

show abstract

Radioactive waste management in PWR technology: some technical solutions for liquid radioactive media processing systems of the “nuclear island”

Vinnitskii

Chugunov

2020

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The present research is aimed at solving an urgent practical problem – to minimize the volume of the radioactive waste from nuclear power plants in the place of their generation. The modernization of the complexes for handling water streams containing radionuclides seems to be the most acceptable solution. The systems developed in the 1960s for the chemical support of the safe operation of the reactor plant and the radioactively contaminated water processing no longer meet the established requirements, primarily in terms of the volume and quality of radioactive waste subject to “eternal” isolation. The search for a reasonable compromise between the amount of waste generated during the operation of systems to ensure the safe operation of nuclear power plants and the theoretically achievable volume of radioactive waste can be considered as the current agenda. The ratio between these indicators will shift as the material and technical base of the available materials and devices is steadily improving, the base itself has significantly expanded over the past time. In this regard, the most urgent is the change in methodological approaches to the organization of chemical technological systems of NPP. First of all, this refers to the advisability of abandoning universal systems in favor of specialized ones adapted to the chemical composition of the processed “raw material”. Separate collection of liquid radioactive waters basing on the principle of chemical composition similarity will allow to use low productivity systems. In this case, local systems can be used only once. The article presents some approaches to the organization of systems capable of providing a radical reduction in the intake of ballast salts in the composition of radioactive waste.

show abstract

Extraction of Valuable Components from Man-made Waters

2020

View full text Add to dashboard Cite

The results of experimental studies on isolation of poly-charged metals cations from man-made waters, which are valuable components, are presented. For their isolation and concentration, the method of homogenous sedimentation was used, which provides self-purification of water bodies in natural conditions and is responsible for the formation of bottom sediments. To implement these processes, energy-consuming low-pressure membrane methods were used- nanofiltration and dialysis, which creates conditions for the formation of solid solutions inside the composite membrane and do not require additional dosage of reagents. With the help of such combination, it was possible to obtain conditionally clean water for technical and household use, to divert environmentally friendly waste waters to the hydrographic network of the region. In addition, the shape of resulting original “ore body” simplifies its processing into individual components. It is noted the use of membrane reactors makes it possible to implement the homogenous deposition regime, which ensures the isolation of transition metals in the form of solid solutions with natural components of surface waters.

show abstract

Dialysis Membranes Based on Microfiltration Elements for Separating the Components of Npp Radioactive Wastewater Via Precipitation

Cited by 3 publications

References 4 publications

Minimization of radioactive waste volume from nuclear power plants using precipitation-membrane technologies

Minimization of radioactive waste volume from nuclear power plants using precipitation-membrane technologies

Radioactive waste management in PWR technology: some technical solutions for liquid radioactive media processing systems of the “nuclear island”

Extraction of Valuable Components from Man-made Waters

Contact Info

Product

Resources

About