Electrical, structural, electronic, magnetic and optical properties Geophysics Astrophysics and astronomy Experimental Research in physics This is an open access journal where one can find scientific research as in form of research articles, review articles, case reports, special issues and short communications where it undergoes a series of steps to attain a standard and a unique scientific piece of research.
In Russia, the total amount of accumulated liquid radioactive waste hereinafter LRW is million, and 77 millions of solid radioactive waste. However, as the world and Russian practice shows, that the controlled storage of radioactive waste in the long term results their accumulation and is not acceptable as a strategy of RAW treatment.
Such strategy does not lead to the final safe solution of the problem, but Physics research articles the permanent overhead costs without clear prospect .
Thus, high production complexes for LRW treatment are needed. Key consumers interested in of liquid radioactive waste treatment plants are: Nowadays, mainly thermal and sorption methods are used for treatment of liquid radioactive waste. Using these methods, the main part of liquid radioactive waste, produced during the operation of nuclear installations of various purposes and other facilities using radioactive substances, is treated.
These methods cannot be called original or specific for the treatment of radioactive waste hereinafter RAWbecause they were taken from various conventional industries and modified.
Mainly these are methods, usually used in purification, treatment and desalination of water. For implementing of treatment methods of non-nuclear industry and their modification, the specific requirements of industries related to radiation must be taken into account : The most universal method for treatment of almost all types of LRW is a thermal method, in which LRW solution is evaporated to concentrate radioactive products in a small volume.
Practice of LRW treatment shows that the main source of problems in evaporation equipment are the heat exchange pipes.
During the operation, their surface is covering inevitably by sediments, which have to be removed periodically by chemical washing, with interruption of the treatment process and at the same time with producing a large amount of secondary LRW.
The inevitability of foam-and-droplets entrainment from the evaporator is also caused by its design, so the additional special equipment have to be used for steam and condensate purification from radionuclides. Moreover, it is necessary to perform periodically the mechanical cleaning of heat exchange tubes which leads to important radiation doses to personnel.
All these problems existing in LRW evaporation technology are well known and studied, and some alternative methods are considered in , but it is concluded that these methods have a low productivity and heat transfer because of the lack of an organized circulation of evaporated solution .
The ideal comprehensive solution of the problem of LRW treatment is to create a continuous LRW evaporation technology with cementation of the concentrate at the same time, and the possible addition of used sorbents and sludge to the resulting cement compound.
The main factor limiting the use of evaporation technology is a high energy costs, but with the appearance at energy market such installations as E-Cat, this problem disappears. For comprehensive solution of the problems of LRW concentration and its subsequent cementation it is proposed to establish a technological process based on the two following principles: To perform the process of LRW concentration in the evaporator equipment, that helps to prevent droplet entrainment and excludes degradation of technological parameters in time to exclude interruptions in work of evaporation equipment due to fouling of the heating surface.
To make the processes of evaporation secondary evaporation and conditioning of LRW inclusion in cement matrix sequental and continuous, thereby eliminating the need for a large number of intermediate containers and dosing of separate portions.Physics News and Research.
Why is the universe more partial to matter than antimatter? How could fuel cells be more efficient? Read current science articles on physics. Scientific Research Publishing is an academic publisher with more than open access journal in the areas of science, technology and medicine.
It also publishes .
The latest research by the world's finest Titanic historians and researchers. A research team led by Dr. Kim Innes, a professor in the West Virginia University School of Public Health, has found that a simple meditation or music listening program may alter certain.
Publishing your article with us has many benefits, such as having access to a personal dashboard: citation and usage data on your publications in one place. This free service is available to anyone who has published and whose publication is in Scopus.
The homepage of IOPscience, home to more than years of leading scientific research journal content.