JPS5626584A - Disposal method for water containing phosphate - Google Patents

Disposal method for water containing phosphate

Info

Publication number
JPS5626584A
JPS5626584A JP10280379A JP10280379A JPS5626584A JP S5626584 A JPS5626584 A JP S5626584A JP 10280379 A JP10280379 A JP 10280379A JP 10280379 A JP10280379 A JP 10280379A JP S5626584 A JPS5626584 A JP S5626584A
Authority
JP
Japan
Prior art keywords
phosphates
crystal seeds
chlorine
water containing
calcium phosphate
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
JP10280379A
Other languages
Japanese (ja)
Other versions
JPS6044997B2 (en
Inventor
Isao Joko
Motomu Koizumi
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries 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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP54102803A priority Critical patent/JPS6044997B2/en
Publication of JPS5626584A publication Critical patent/JPS5626584A/en
Publication of JPS6044997B2 publication Critical patent/JPS6044997B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Removal Of Specific Substances (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

PURPOSE: To remove phosphates with a high rate of removal, by a method wherein crystal seeds containing calcium phosphate treated by a chlorine agent and water containing the phosphates causing eutrophication are contacted.
CONSTITUTION: Crystal seeds (e.g. phosphate rock) containing calcium phosphate treated by a chlorine agent selected from a chlorine gas, chlorine water, sodium hydrochlorite, bleaching powder or heavy-duty bleaching powder and water containing phosphates are contacted, phosphate ions are crystallized on the crystal seeds in a form of calcium phosphate, and the phosphates are removed. It is preferable that the crystal seeds are treated by the chlorine agent when washing back a crystal seed bed, because impurities previously adhering onto the crystal seeds are removed, and the activity of the latter can be recovered, thus allowing the maintenance of the high efficiency of removal.
COPYRIGHT: (C)1981,JPO&Japio
JP54102803A 1979-08-14 1979-08-14 How to treat water containing phosphates Expired JPS6044997B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54102803A JPS6044997B2 (en) 1979-08-14 1979-08-14 How to treat water containing phosphates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54102803A JPS6044997B2 (en) 1979-08-14 1979-08-14 How to treat water containing phosphates

Publications (2)

Publication Number Publication Date
JPS5626584A true JPS5626584A (en) 1981-03-14
JPS6044997B2 JPS6044997B2 (en) 1985-10-07

Family

ID=14337217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54102803A Expired JPS6044997B2 (en) 1979-08-14 1979-08-14 How to treat water containing phosphates

Country Status (1)

Country Link
JP (1) JPS6044997B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128044A (en) * 1983-01-13 1984-07-24 株式会社京三製作所 Waterproof type electric switch machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50152544A (en) * 1974-05-29 1975-12-08
JPS5126752A (en) * 1974-08-29 1976-03-05 Ebara Infilco Rinsanenruiofukumu ekinoshorihoho

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50152544A (en) * 1974-05-29 1975-12-08
JPS5126752A (en) * 1974-08-29 1976-03-05 Ebara Infilco Rinsanenruiofukumu ekinoshorihoho

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128044A (en) * 1983-01-13 1984-07-24 株式会社京三製作所 Waterproof type electric switch machine
JPH0433670B2 (en) * 1983-01-13 1992-06-03 Kyosan Electric Mfg

Also Published As

Publication number Publication date
JPS6044997B2 (en) 1985-10-07

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