Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Storage and final disposal of radioactive resin waste becomes safer and more economical with new process developed in Finland

16.08.2005


The Technical Research Centre of Finland, VTT has developed a low-temperature plasma burning process for controlled and safe incineration of water purification resin used in the primary circuit of nuclear power plants. Storing radioactive waste in the form of ash takes less space and is easier to manage. VTT and its partners have signed an agreement to build a half-scale plasma burning process pilot.



Resin is used for purification of primary circuit water of nuclear power plants, which makes the resin radioactive. The level of its radioactivity does not decrease in incineration, but the volume of the radioactive waste will decrease to at least a tenth of its original volume reducing considerably the storage and final disposal costs for the nuclear power plant. Resin is an organic product and radiation induces gas generation in it, which may be problematic in long-term storage and in final disposal.

Plasma burning enables controlled and safe incineration of radioactive resin. The resin is incinerated in a subatmospheric pressure in a chamber, which enables the maintenance of sufficiently low temperatures. The radioactive ash resulting from the incineration is chemically more stable than resin and radiation does not generate gas in ash. The ash can, for instance, be solidified in concrete which will make the final waste product safe for storage.


In accordance with the project agreement a half-scale plasma burning pilot process will be built on VTT’s premises. The aim of the pilot project is to prove the efficacy of the process as a full-scale industrial process and also to optimise the process parameters for the building of an industrial burning process. The pilot project is based on experimental research carried out by VTT and on supporting model calculations according to which the process could be implemented on an industrial scale.

The pilot project’s duration will be two years. The aim is to have a commercial process ready in five years. Based on market research the process should have international market potential, especially in Europe.

The aim is to build a light process which could be implemented for the needs of one nuclear power plant site. Transportation of radioactive waste will be avoided, and it should be cost-effective to incinerate the waste on the plant site. It may also be possible to build the process in a transport container so as to provide incineration services to several NPP sites with one process unit.

The project is managed by Finex Oy, which manufactures ion exchange resins in Finland. The other cooperation partners are TVO, Fortum Generation and Tekes.

Irene Hernberg | alfa
Further information:
http://www.vtt.fi

More articles from Ecology, The Environment and Conservation:

nachricht Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel

nachricht Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Research reveals how order first appears in liquid crystals

23.05.2018 | Life Sciences

Space-like gravity weakens biochemical signals in muscle formation

23.05.2018 | Life Sciences

NIST puts the optical microscope under the microscope to achieve atomic accuracy

23.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>