JPS5547178A - Treating of organic waste water containing biologically hard-to-decompose material - Google Patents

Treating of organic waste water containing biologically hard-to-decompose material

Info

Publication number
JPS5547178A
JPS5547178A JP11952078A JP11952078A JPS5547178A JP S5547178 A JPS5547178 A JP S5547178A JP 11952078 A JP11952078 A JP 11952078A JP 11952078 A JP11952078 A JP 11952078A JP S5547178 A JPS5547178 A JP S5547178A
Authority
JP
Japan
Prior art keywords
waste water
ferric
organic waste
sludge
coloring components
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
JP11952078A
Other languages
Japanese (ja)
Inventor
Asao Horiuchi
Ichiro Yamamoto
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.)
Kankyo Engineering Co Ltd
Original Assignee
Kankyo Engineering Co 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 Kankyo Engineering Co Ltd filed Critical Kankyo Engineering Co Ltd
Priority to JP11952078A priority Critical patent/JPS5547178A/en
Publication of JPS5547178A publication Critical patent/JPS5547178A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To provide a high degree treatment for stabilized solidification of organic materials and coloring components in waste water, by adding ferric salts to organic waste water containing materials which are biologically difficult to decompose and adding further calcium ions to the coagulated sludge under an acidic condition.
CONSTITUTION: Biologically undecomposable organic waste water such as biological metabolic deteriorated material from sewage or drainage is treated by first adding ferric salt such as ferric chloride and ferric sulfate in an amount of 10W1000ppm converted as iron atom. Then, the waste water is adjusted to pH 3W5.5 allowing organic materials and coloring components to be precipitated with flocks of ferric hydroxide. The formed flocks is treated by a coagulant of high molecular weight to produce coagulated soild and separated as sludge. The sludge is added with calcium ion such as calcium carbonate to permit organic materials and coloring components to be made insoluble and fixed in high ratio. The process provides thus a simple and cost-effective means to treat organic waste water.
COPYRIGHT: (C)1980,JPO&Japio
JP11952078A 1978-09-28 1978-09-28 Treating of organic waste water containing biologically hard-to-decompose material Pending JPS5547178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11952078A JPS5547178A (en) 1978-09-28 1978-09-28 Treating of organic waste water containing biologically hard-to-decompose material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11952078A JPS5547178A (en) 1978-09-28 1978-09-28 Treating of organic waste water containing biologically hard-to-decompose material

Publications (1)

Publication Number Publication Date
JPS5547178A true JPS5547178A (en) 1980-04-03

Family

ID=14763299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11952078A Pending JPS5547178A (en) 1978-09-28 1978-09-28 Treating of organic waste water containing biologically hard-to-decompose material

Country Status (1)

Country Link
JP (1) JPS5547178A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6078691A (en) * 1983-10-06 1985-05-04 Ataka Kogyo Kk High treatment of waste water
US6025562A (en) * 1995-07-18 2000-02-15 Omron Corporation Electronic equipment and method of manufacturing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149559A (en) * 1974-10-25 1976-04-28 Nippon Kokan Kk Ansuino shorihoho
JPS5224983A (en) * 1975-08-21 1977-02-24 Chiyoda Chem Eng & Constr Co Ltd Process for treatment of sludge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149559A (en) * 1974-10-25 1976-04-28 Nippon Kokan Kk Ansuino shorihoho
JPS5224983A (en) * 1975-08-21 1977-02-24 Chiyoda Chem Eng & Constr Co Ltd Process for treatment of sludge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6078691A (en) * 1983-10-06 1985-05-04 Ataka Kogyo Kk High treatment of waste water
JPH0148077B2 (en) * 1983-10-06 1989-10-17 Ataka Construction & Eng
US6025562A (en) * 1995-07-18 2000-02-15 Omron Corporation Electronic equipment and method of manufacturing the same

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