PL400235A1 - Method for disposal of radioactive waste in a synthetic rock - Google Patents

Method for disposal of radioactive waste in a synthetic rock

Info

Publication number
PL400235A1
PL400235A1 PL400235A PL40023512A PL400235A1 PL 400235 A1 PL400235 A1 PL 400235A1 PL 400235 A PL400235 A PL 400235A PL 40023512 A PL40023512 A PL 40023512A PL 400235 A1 PL400235 A1 PL 400235A1
Authority
PL
Poland
Prior art keywords
synroc
radioactive waste
sol
metals
disposal
Prior art date
Application number
PL400235A
Other languages
Polish (pl)
Other versions
PL223603B1 (en
Inventor
Tomasz Smolinski
Andrzej G. Chmielewski
Andrzej Deptuła
Wiesława Łada
Tadeusz Olczak
Original Assignee
Instytut Chemii I Techniki Jadrowej
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Instytut Chemii I Techniki Jadrowej filed Critical Instytut Chemii I Techniki Jadrowej
Priority to PL400235A priority Critical patent/PL223603B1/en
Priority to EP13176463.1A priority patent/EP2693443B1/en
Publication of PL400235A1 publication Critical patent/PL400235A1/en
Publication of PL223603B1 publication Critical patent/PL223603B1/en

Links

Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04Treating liquids
    • G21F9/06Processing
    • G21F9/16Processing by fixation in stable solid media
    • G21F9/162Processing by fixation in stable solid media in an inorganic matrix, e.g. clays, zeolites
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28Treating solids
    • G21F9/30Processing
    • G21F9/301Processing by fixation in stable solid media
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28Treating solids
    • G21F9/34Disposal of solid waste

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Przedmiotem wynalazku jest sposób unieszkodliwiania odpadów radioaktywnych zmodyfikowaną metodą zol-żel poprzez ich zamknięcie w trwałe struktury krystalograficzne ceramicznych materiałów synroc typu perovskite. Sposób polega na tym, że do wytworzonego uprzednio bezchlorkowego roztworu koloidalnego, korzystnie Ti(NO3)4 dodaje się związek kompleksujący, korzystnie kwas askorbinowy ASC, w stosunku do sumy moli metali od 0.1 do 0.3 i wprowadza węglan wapnia oraz pierwiastki wchodzące w skład wysokoaktywnych odpadów promieniotwórczych, w postaci węglanów lub azotanów, zwłaszcza strontu, kobaltu, cezu i neodymu, w stosunku molowym od 2% do 14% poszczególnych metali (Me) zastępując tym samym od 2% do 14% molowych, uprzednio wprowadzonego Ca2+, tak otrzymany zol, odparowuje się, suszy i poddaje obróbce temperaturowej oraz ewentualnie analizie XRD i IR, po czym prekursor synrocu pastylkuje się i wypraża w temperaturze 1200°C w czasie 2h.The subject of the invention is a method of neutralizing radioactive waste using the modified sol-gel method by enclosing it in permanent crystallographic structures of synroc ceramic materials of the perovskite type. The method consists in adding a complexing compound, preferably ascorbic acid ASC, to the previously prepared chloride-free colloidal solution, preferably Ti(NO3)4, in relation to the sum of moles of metals from 0.1 to 0.3 and introduces calcium carbonate and elements included in high-active waste radioactive substances, in the form of carbonates or nitrates, especially strontium, cobalt, cesium and neodymium, in a molar ratio of 2% to 14% of individual metals (Me), thus replacing from 2% to 14% of the previously introduced Ca2+, the sol thus obtained, is evaporated, dried and subjected to temperature treatment and optionally XRD and IR analysis, after which the synroc precursor is pelletized and calcined at 1200°C for 2h.

PL400235A 2012-08-03 2012-08-03 Method for disposal of radioactive waste in a synthetic rock PL223603B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL400235A PL223603B1 (en) 2012-08-03 2012-08-03 Method for disposal of radioactive waste in a synthetic rock
EP13176463.1A EP2693443B1 (en) 2012-08-03 2013-07-15 Method of disposal of radioactive waste in "synthetic rock"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL400235A PL223603B1 (en) 2012-08-03 2012-08-03 Method for disposal of radioactive waste in a synthetic rock

Publications (2)

Publication Number Publication Date
PL400235A1 true PL400235A1 (en) 2014-02-17
PL223603B1 PL223603B1 (en) 2016-10-31

Family

ID=48783085

Family Applications (1)

Application Number Title Priority Date Filing Date
PL400235A PL223603B1 (en) 2012-08-03 2012-08-03 Method for disposal of radioactive waste in a synthetic rock

Country Status (2)

Country Link
EP (1) EP2693443B1 (en)
PL (1) PL223603B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110310753B (en) * 2019-07-18 2020-10-30 西南科技大学 Method for solidifying radionuclide fission product cesium by using perovskite structure oxide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL198039A1 (en) 1977-05-10 1977-09-26 Pomorsk Z App El TIME RELAY, ESPECIALLY FOR ELECTRICAL SYSTEMS, MINE SWITCHES
PL172618B1 (en) 1993-09-29 1997-10-31 Inst Fiziki Jadrowej A method of producing high-temperature superconductors

Also Published As

Publication number Publication date
PL223603B1 (en) 2016-10-31
EP2693443A2 (en) 2014-02-05
EP2693443A3 (en) 2015-04-29
EP2693443B1 (en) 2017-01-11

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