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2 195 725

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Application

2001121091/06, 2001-07-30

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Start date

2001-07-30

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Actual filing date

2001-07-30

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Published

2002-12-27

(72)

Inventor

Sergienko M.A.Prozorov V.V.Lysenko A.A.Olejnik M.S.Musakin D.A.Nechaev A.F.

(73)

Holder

Sosnovoborskij Gosudarstvennyj Proektno-Izyskatel'Skij Institut

LIQUID RADIOACTIVE WASTE CONCENTRATION METHOD Russian patent published in 2002 - IPC

Abstract RU 2195725 C1

FIELD: concentrating radioactive wastes incorporating oxalic acid by evaporation. SUBSTANCE: method includes evaporation of oxalic-acid wastes at pH≤4 up to saturation with oxalate ions, electrolyzing of oxalic acid concentrate accompanied by decomposition of oxalate ions until CO2, is obtained, concentrate mixing with remaining oxalate-free liquid radioactive wastes, and concentration by evaporation at pH = 10-11 up to saturation with salts. EFFECT: reduced amount of radioactive concentrates; preventing condensate pollution by ammonia. 3 ex

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RU 2 195 725 C1

Authors

Sergienko M.A.

Prozorov V.V.

Lysenko A.A.

Olejnik M.S.

Musakin D.A.

Nechaev A.F.

Dates

2002-12-27—Published

2001-07-30—Filed

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