JPS5470645A - Purification disposal method of waste water containing oil - Google Patents

Purification disposal method of waste water containing oil

Info

Publication number
JPS5470645A
JPS5470645A JP13836277A JP13836277A JPS5470645A JP S5470645 A JPS5470645 A JP S5470645A JP 13836277 A JP13836277 A JP 13836277A JP 13836277 A JP13836277 A JP 13836277A JP S5470645 A JPS5470645 A JP S5470645A
Authority
JP
Japan
Prior art keywords
waste water
water containing
containing oil
oils
disposal method
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
JP13836277A
Other languages
Japanese (ja)
Inventor
Mitsusaku Otsubo
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 Plant Technologies Ltd
Original Assignee
Hitachi Plant Technologies 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 Plant Technologies Ltd filed Critical Hitachi Plant Technologies Ltd
Priority to JP13836277A priority Critical patent/JPS5470645A/en
Publication of JPS5470645A publication Critical patent/JPS5470645A/en
Pending legal-status Critical Current

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  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: To excellently remove oils, by adding mineral acid to waste water containing oil, which contains organic pollutants and heating them, by separation removing oils, by adjusting pH at 9W11 by adding Ca(OH)2, and by separating formed precipitate.
CONSTITUTION: Mineral acid (For example, H2SO4) is added to waste water containing oil (For example, de-fatted waste water containing a surface active agent, etc.), which contains organic pollutants, and heated not less than 70°C, oils are separation removed, pH is adjusted at 9W11 by adding Ca(OH)2, and disposing water is settled, thus separating said water into sludge and clear water. Clear water is discharged after neutralizing it.
COPYRIGHT: (C)1979,JPO&Japio
JP13836277A 1977-11-16 1977-11-16 Purification disposal method of waste water containing oil Pending JPS5470645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13836277A JPS5470645A (en) 1977-11-16 1977-11-16 Purification disposal method of waste water containing oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13836277A JPS5470645A (en) 1977-11-16 1977-11-16 Purification disposal method of waste water containing oil

Publications (1)

Publication Number Publication Date
JPS5470645A true JPS5470645A (en) 1979-06-06

Family

ID=15220152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13836277A Pending JPS5470645A (en) 1977-11-16 1977-11-16 Purification disposal method of waste water containing oil

Country Status (1)

Country Link
JP (1) JPS5470645A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007117939A (en) * 2005-10-31 2007-05-17 Miyoshi Oil & Fat Co Ltd Method for treating tallow-containing waste water

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5077269A (en) * 1973-11-12 1975-06-24
JPS5184147A (en) * 1975-01-22 1976-07-23 Noritake Enjiniaringu Kk Ashosanen oyobi kakoyuofukumuhaisuinoshoriho

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5077269A (en) * 1973-11-12 1975-06-24
JPS5184147A (en) * 1975-01-22 1976-07-23 Noritake Enjiniaringu Kk Ashosanen oyobi kakoyuofukumuhaisuinoshoriho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007117939A (en) * 2005-10-31 2007-05-17 Miyoshi Oil & Fat Co Ltd Method for treating tallow-containing waste water

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