JPS54135686A - Recovering method for seawater uranium collecting adsorbent - Google Patents

Recovering method for seawater uranium collecting adsorbent

Info

Publication number
JPS54135686A
JPS54135686A JP4311378A JP4311378A JPS54135686A JP S54135686 A JPS54135686 A JP S54135686A JP 4311378 A JP4311378 A JP 4311378A JP 4311378 A JP4311378 A JP 4311378A JP S54135686 A JPS54135686 A JP S54135686A
Authority
JP
Japan
Prior art keywords
adsorbent
seawater
fed
pump
ferrous salt
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP4311378A
Other languages
Japanese (ja)
Inventor
Chiaki Maekoya
Yoshihiro Ozawa
Hisao Yamashita
Kazunori Fujita
Fumito Nakajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4311378A priority Critical patent/JPS54135686A/en
Publication of JPS54135686A publication Critical patent/JPS54135686A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To efficiently recover an adsorbent which has adsorbed U in seawater, by removing part of the adsorbent in seawater which part is of a relatively large diameter by sedimentation separation; adding a ferrous salt soln. to the seawater to coprecipitate the residual fine adsorbent and an iron cpd.; and magnetically separating the adsorbent.
CONSTITUTION: Adsorbent 2 and seawater 3 are contacted in adsorption vessel 1 for a fixed time and fed to settler 6 with pump 5 to remove part of adsorbent 2 which part is of a relatively large diameter. Seawater contg. fine adsorbent 2 is supplied to mixer 10 with pump 9. A ferrous salt soln. is fed from tank 12 to mixer 10 with pump 11 and mixed into the seawater. The mixed soln. is introduced into magnetic separtor 13 to separate the adsorbent and seawater. The seawater is discharged. Precipitates accumulated in the lower part of settler 6 are fed to a U adsorption process together with the adsorbent recovered by the magnetic separation. Since the adsorbent concn. after the sedimentation separation is below 1 ppm, below 1 ppm of the ferrous salt is enough to be added. The salt easily forms magnetic precipitates such as γ-Fe2O3 and Fe3O4 in seawater to coprecipitate the fine adsorbent.
COPYRIGHT: (C)1979,JPO&Japio
JP4311378A 1978-04-14 1978-04-14 Recovering method for seawater uranium collecting adsorbent Pending JPS54135686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4311378A JPS54135686A (en) 1978-04-14 1978-04-14 Recovering method for seawater uranium collecting adsorbent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4311378A JPS54135686A (en) 1978-04-14 1978-04-14 Recovering method for seawater uranium collecting adsorbent

Publications (1)

Publication Number Publication Date
JPS54135686A true JPS54135686A (en) 1979-10-22

Family

ID=12654765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4311378A Pending JPS54135686A (en) 1978-04-14 1978-04-14 Recovering method for seawater uranium collecting adsorbent

Country Status (1)

Country Link
JP (1) JPS54135686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103877927A (en) * 2014-04-14 2014-06-25 南华大学 Preparation method of magnetic nano Fe3O4 particles by biological catalysis and application of particles to treatment of uranium-containing wastewater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103877927A (en) * 2014-04-14 2014-06-25 南华大学 Preparation method of magnetic nano Fe3O4 particles by biological catalysis and application of particles to treatment of uranium-containing wastewater

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