【発明の名称】ウランおよびフツ素含有廃水の処理方法

Japanese Patent JPH0644074

B2

A process for treating a waste water containing uranium and fluorine comprises a neutralizing precipitation step wherein slaked lime is added to the waste water containing uranium and fluorine and precipitate thus formed in separated and removed, and an adsorption step wherein supernatant from the neutralizing precipitation step is contacted with a chelating resin which can selectively adsorb fluorine ions and another chelating resin which can selectively adsorb uranyl ions to thereby adsorb and remove the fluorine and uranyl ions remaining in the supernatant. Eluates of the ions adsorbed by the chelating resins and waste liquors for washing and regeneration of these resins are returned to the neutralizing precipitation step. Prior to the neutralizing precipitation step, a decarbonation step may be provided for decomposing carbonate ions, if they are contained in the waste water to be treated.

JPS5672070	PREPARATION OF URANYL ION TRAPPING AGENT
JPS608011	[Title of the Invention] A cellulose ion exchange fiber and its manufacturing method
WO/1989/003434	SUPPORTED HETEROPOLYCYCLIC COMPOUNDS IN THE SEPARATION AND REMOVAL OF LATE TRANSITION METALS

OTOMURA KEIICHIROU
OGURA ZENICHI
ECHIGO YOSHIAKI
YAMAO MUTSUNORI
ISHIKURA TADASHI

JP3358886A

June 08, 1994

February 18, 1986

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POWER REACTOR & NUCLEAR FUEL
UNITIKA LTD

B01J45/00; C02F1/42; G21F9/06; C02F1/52; C02F1/54; C02F1/58; C02F1/66; C02F1/68; C02F9/00; C22B60/02; G21F9/00; G21F9/04; G21F9/10; G21F9/12; (IPC1-7): G21F9/10; G21F9/06

JP5066700A
JP5979200A
JP61239196A
JP62184396A
JP4735199B1

Yukio Ogata

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