METHOD OF PROCESSING LIQUID RADIOACTIVE WASTES Russian patent published in 2012 - IPC G21F9/08 

Abstract RU 2465666 C2

FIELD: chemistry.

SUBSTANCE: method of processing liquid radioactive wastes which contain radionuclides in ionic and colloidal form and mineral and organic ballast components in dissolved and suspended states involves oxidation of organic components of liquid radioactive wastes by feeding ozone into a stream of wastes which is pre-filtered on cellular filter material; ozonation is carried out with ozone with concentration higher than 0.2 g/l, in a channel for feeding ozone from an ozone generator into a mixing chamber, a vacuum which is less than 1/3 of the inverse ozone concentration is formed. The cross-section of the gas channel for feeding ozone is less than the ratio of the flow rate of gas with ozone to ozone concentration by about 5000 times. The stream of ozonised liquid radioactive wastes is directed opposite the stream of ozone in bubbles. The mixing chamber is divided by a net into two sections, into the bottom of which ozone is fed from an ejector with a closed stream of liquid radioactive wastes, taken from the same section, and then divided by a net and then raised in the second section opposite the stream of liquid radioactive wastes. The stream of liquid radioactive wastes is successively fed through two or more chambers, the last of which the amount of ozone is selected not less than 1/3 of the product of ozone concentration, flow rate of liquid radioactive wastes and a stoichiometric coefficient of its reaction with the organic component in the liquid radioactive wastes. The closed stream of liquid radioactive wastes with ozone is fed from the ejector into the bottom section of the mixing chamber at a tangent to its perimetre.

EFFECT: invention enables to reduce the volume of a radioactive concentrate by increasing the ozone utilisation factor.

1 dwg, 1 ex

Similar patents RU2465666C2

Title Year Author Number
METHOD FOR PURIFYING RADIOACTIVE WASTE LIQUID 2013
  • Arzhatkin Vladimir Gennad'Evich
  • Arkhipov Vladimir Pavlovich
  • Basiev Aleksandr Gavrilovich
  • Ershov Boris Grigor'Evich
  • Novikov Dmitrij Olegovich
  • Kalashnikov Valerij Georgievich
  • Kamrukov Aleksandr Semenovich
  • Konstantinov Vitalij Evgen'Evich
  • Kozlov Nikolaj Pavlovich
  • Lagunova Julija Olegovna
  • Matveenko Aleksandr Valentinovich
  • Malkov Kirill Il'Ich
  • Seliverstov Aleksandr Fedorovich
  • Trofimova Marija Olegovna
  • Chechel'Nitskij Gennadij Moiseevich
  • Shashkovskij Sergej Gennad'Evich
  • Jalovik Mikhail Stepanovich
RU2560837C2
METHOD OF PURIFYING LIQUID RADIOACTIVE WASTES AND DEVICE FOR ITS IMPLEMENTATION 2016
  • Arkhipov Vladimir Pavlovich
  • Kamrukov Aleksandr Semenovich
  • Malkov Kirill Ilich
  • Novikov Dmitrij Olegovich
  • Yalovik Mikhail Stepanovich
RU2641656C1
METHOD FOR PROCESSING LIQUID RADIOACTIVE WASTES 2017
  • Seliverstov Aleksandr Fedorovich
  • Tikhomirov Anatolij Mikhajlovich
  • Matveenko Aleksandr Valentinovich
  • Arzhatkin Vladimir Gennadevich
  • Chechelnitskij Gennadij Moiseevich
RU2654195C1
METHOD FOR NITRATE-CONTAINING LIQUID RADIOACTIVE WASTE PROCESSING 2013
  • Safonov Aleksej Vladimirovich
  • Tregubova Varvara Evgen'Evna
  • German Konstantin Ehduardovich
  • Nazina Tamara Nikolaevna
  • Sokolova Dijana Shamilevna
  • Ershov Boris Grigor'Evich
  • Gorbunova Ol'Ga Anatol'Evna
RU2552845C2
METHOD AND INSTALLATION FOR PROCESSING LIQUID RADIOACTIVE WASTE 2017
  • Konev Yurij Nikolaevich
  • Olejnik Sergej Vladimirovich
RU2676335C2
METHOD OF REMOVING RADIOACTIVE CO ISOTOPE FROM STILLAGE RESIDUE OF NUCLEAR POWER PLANTS AND SYSTEM THEREFOR 2014
  • Kantserov Aleksandr Ivanovich
  • Novolodskij Viktor Alekseevich
  • Chalijan Aleksandr Grigor'Evich
  • Rumjantsev Andrej Alekseevich
RU2558899C1
METHOD FOR RECOVERING LIQUID RADIOACTIVE WASTES OF NUCLEAR POWER PLANT 2002
  • Kudrjavtsev B.K.
  • Korchagin Ju.P.
  • Reznik A.A.
  • Dmitriev S.A.
  • Savkin A.E.
  • Zinin A.V.
  • Khubetsov S.B.
  • Chechel'Nitskij G.M.
RU2226726C2
METHOD OF CLEANING STILL RESIDUES OF LIQUID RADIOACTIVE WASTES FROM RADIOACTIVE COBALT AND CAESIUM 2011
  • Shmakov Leonid Vasil'Evich
  • Pereguda Vladimir Ivanovich
  • Cheremiskin Vladimir Ivanovich
  • Tishkov Viktor Mikhajlovich
  • Cheremiskin Sergej Vladimirovich
  • Chalijan Aleksandr Grigor'Evich
  • Novolodskij Viktor Alekseevich
RU2467419C1
METHOD OF PROCESSING LIQUID WASTES CONTAINING RADIONUCLIDES 1997
  • Dmitriev S.A.
  • Lifanov F.A.
  • Nechaev A.F.
  • Savkin A.E.
  • Chechel'Nitskij G.M.
  • Chugunov A.S.
  • Shibkov S.N.
RU2122753C1
METHOD FOR RECOVERING STILL BOTTOMS OF LIQUID RADIOACTIVE WASTE 2006
  • Avramenko Valentin Aleksandrovich
  • Dobrzhanskij Vitalij Georgievich
  • Sergienko Valentin Ivanovich
  • Shmatko Sergej Ivanovich
RU2297055C1

RU 2 465 666 C2

Authors

Basiev Aleksandr Aleksandrovich

Basiev Aleksandr Gavrilovich

Seliverstov Aleksandr Fedorovich

Dates

2012-10-27Published

2010-12-29Filed