EP 3895185 A1 20211020 - METHOD FOR TREATMENT AND SOLIDIFICATION OF LIQUID WASTE
Title (en)
METHOD FOR TREATMENT AND SOLIDIFICATION OF LIQUID WASTE
Title (de)
VERFAHREN ZUR BEHANDLUNG UND VERFESTIGUNG VON FLÜSSIGEN ABFÄLLEN
Title (fr)
MÉTHODE DE TRAITEMENT ET DE SOLIDIFICATION DE DÉCHETS LIQUIDES
Publication
Application
Priority
- FI 20186089 A 20181216
- FI 2019050897 W 20191216
Abstract (en)
[origin: WO2020128158A1] A method for solidifying radioactive waste, and a solidification product. According to the method, radioactive waste, which comprises intermediate-level ion-exchange resin used, is mixed into a mixture of hydraulic binder and water, and the generated mixture is hardened to form a solidification product that comprises waste. According to the present invention, the hydraulic binder comprises a mixture of cement and blast furnace slag, and an activator for blast furnace slag, and at least part of the water used for the solidification is comprised of boron-containing evaporator concentrate solution. The present invention also relates to a method for binding the radioactive components of the aqueous evaporator concentrate. By using the present solution, it is possible to increase the amount of waste in the package and, at the same time, it is possible to reduce the amount of the separately added alkaline components in the solidification mass recipe. The fact that the surface dose rate does not increase significantly, or not at all, brings with it a very considerable advantage.
IPC 8 full level
G21F 9/12 (2006.01); B09B 3/27 (2022.01); G21F 9/16 (2006.01); G21F 9/30 (2006.01)
CPC (source: EP FI)
B09B 3/20 (2022.01 - FI); C04B 7/1535 (2013.01 - FI); C04B 18/0463 (2013.01 - FI); C04B 18/142 (2013.01 - FI); G21F 9/12 (2013.01 - EP); G21F 9/165 (2013.01 - EP); G21F 9/304 (2013.01 - EP FI)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020128158 A1 20200625; EP 3895185 A1 20211020; FI 129112 B 20210715; FI 20186089 A1 20200617
DOCDB simple family (application)
FI 2019050897 W 20191216; EP 19848927 A 20191216; FI 20186089 A 20181216