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[January 2004]
Linn High Therm Gets Rights to 'In-Barrel' Microwave Drying Method
Linn High Therm GmbH (Eschenfelden, Germany), a leading manufacturer of industrial and laboratory furnaces for 35 years, has taken over the know-how, right to use and pilot plant of the 'in-barrel' drying of radioactive and other liquid waste from RWE Nukem GmbH.
The process, which was originally developed as a joint Nukem-Linn project, will now be realised and commercialised by Linn High Therm. The process patents are in sole property of Linn. The process enables a drastic volume reduction of, for example, radioactive, chemical or toxic liquid waste. As a result, it is said that the costs for depositing these wastes can be reduced by up to 80%.
The process uses microwave energy (2.45GHz) to create the necessary heat for the evaporation. This results in a very homogeneous heating and evaporation. The microwave heating reduces the process time significantly as the heat is created directly in the fluid. The evaporation process takes place directly in the metal barrel for ultimate waste disposal, so that handling of the extracted solid matter is no longer required.
As an example, Linn said that a 20kW/2.45GHz unit can process 2,500kg concentrate in approximately 125 hours from a water content of 80% to below 1% as salt. The residual solid matter quantity corresponds to the content of a standard barrel.
For further information e-mail: info@linn.de
ENDS