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JPS55114321A - Porous filter body and its manufacturing method - Google Patents

Porous filter body and its manufacturing method

Info

Publication number
JPS55114321A
JPS55114321A JP2101979A JP2101979A JPS55114321A JP S55114321 A JPS55114321 A JP S55114321A JP 2101979 A JP2101979 A JP 2101979A JP 2101979 A JP2101979 A JP 2101979A JP S55114321 A JPS55114321 A JP S55114321A
Authority
JP
Japan
Prior art keywords
filter
radioactive
particles
inside wall
small hole
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.)
Granted
Application number
JP2101979A
Other languages
Japanese (ja)
Other versions
JPS6314320B2 (en
Inventor
Masashi Kudo
Kunio Kamiya
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 JP2101979A priority Critical patent/JPS55114321A/en
Publication of JPS55114321A publication Critical patent/JPS55114321A/en
Publication of JPS6314320B2 publication Critical patent/JPS6314320B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtering Materials (AREA)

Abstract

PURPOSE: To prevent the accumulation of radioactive clad to small holes, which filter insoluble radioactive solid particles, while improving the efficiency of the regeneration of a filter, by a method wherein the inside walls of the small holes are smoothed by beforehand attaching non-radioactive substance.
CONSTITUTION: A circulation liquid containing thermoplastic non-radioactive particles 70, such as lead particles, etc. is let pass through a small hole 211 in a porous tube filter 21, and the non-radioactive particles 70 are deposited on an inside wall of the small hole 211. After the particles are deposited and accumulated up to saturation value, the porous tube filter 21 is dehydrated, heated and cooled, the melting bodies 71 of the non-radioactive particles 70 are held, and the inside wall is smoothed. Waste fluid is filtered by using the filter 21 treated in this way, thus preventing the accumulation of radioactive clad to the inside wall of the small hole, then decreasing the quantity of radiation, to which the filter is exposed, while improving the efficiency of the regeneration of the filter 21 by back-wash.
COPYRIGHT: (C)1980,JPO&Japio
JP2101979A 1979-02-23 1979-02-23 Porous filter body and its manufacturing method Granted JPS55114321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2101979A JPS55114321A (en) 1979-02-23 1979-02-23 Porous filter body and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2101979A JPS55114321A (en) 1979-02-23 1979-02-23 Porous filter body and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS55114321A true JPS55114321A (en) 1980-09-03
JPS6314320B2 JPS6314320B2 (en) 1988-03-30

Family

ID=12043319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2101979A Granted JPS55114321A (en) 1979-02-23 1979-02-23 Porous filter body and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS55114321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048195A (en) * 1983-05-27 1985-03-15 シー．ピー．シー．エンジニアリング　コーポレイション Method and device for softening fluid containing hard component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048195A (en) * 1983-05-27 1985-03-15 シー．ピー．シー．エンジニアリング　コーポレイション Method and device for softening fluid containing hard component

Also Published As

Publication number Publication date
JPS6314320B2 (en) 1988-03-30

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