JPS56111084A - Treatment of waste water containing foam extinguishing agent - Google Patents

Treatment of waste water containing foam extinguishing agent

Info

Publication number
JPS56111084A
JPS56111084A JP1404980A JP1404980A JPS56111084A JP S56111084 A JPS56111084 A JP S56111084A JP 1404980 A JP1404980 A JP 1404980A JP 1404980 A JP1404980 A JP 1404980A JP S56111084 A JPS56111084 A JP S56111084A
Authority
JP
Japan
Prior art keywords
waste water
pumped
tank
foam extinguishing
added
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
JP1404980A
Other languages
Japanese (ja)
Other versions
JPS5930151B2 (en
Inventor
Kiichi Tanaka
Noboru Gomiyo
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.)
Nittan Co Ltd
Original Assignee
Nittan 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Priority to JP1404980A priority Critical patent/JPS5930151B2/en
Publication of JPS56111084A publication Critical patent/JPS56111084A/en
Publication of JPS5930151B2 publication Critical patent/JPS5930151B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

PURPOSE: To prevent the pollution that considerably contaminates rivers by flocculating the foaming components of the foam extinguishing in waste water through chemical addition treatment and discharging the filtrate thereof after neutralizing the same.
CONSTITUTION: Titled waste water, particularly the waste water of the case to be flowed to sewer etc. after testing of foaming of foam extinguishing agents is collected and is put into a waste water tank 1. Next, the waste water is pumped 6 into a batch type reaction tank 2, where MgCl2 and FeCl3 are added to the waste water from injecting tanks under stirring. When caustic soda is similarly added and the liquid is controlled to basicity (about 10.5pH) while pH is being measured with pH test paper, flocs are produced, and the foaming components in the waste water are contained therein. Further when a high-polymer flocculant is added under stirring, the flocs grow to larger sizes to permit filtration. This is pumped 7 to a vacuum precoating filter 3, and is filtered thereby. The treated water is drawn by a pump 9 and enters a liquid receiving tank 4, from which it is further pumped 10 to a pH controlling tank 5, where it is neutralized with a hydrochloric acid, after which it is discharged.
COPYRIGHT: (C)1981,JPO&Japio
JP1404980A 1980-02-06 1980-02-06 Treatment method for wastewater containing fire extinguishing foam Expired JPS5930151B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1404980A JPS5930151B2 (en) 1980-02-06 1980-02-06 Treatment method for wastewater containing fire extinguishing foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1404980A JPS5930151B2 (en) 1980-02-06 1980-02-06 Treatment method for wastewater containing fire extinguishing foam

Publications (2)

Publication Number Publication Date
JPS56111084A true JPS56111084A (en) 1981-09-02
JPS5930151B2 JPS5930151B2 (en) 1984-07-25

Family

ID=11850232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1404980A Expired JPS5930151B2 (en) 1980-02-06 1980-02-06 Treatment method for wastewater containing fire extinguishing foam

Country Status (1)

Country Link
JP (1) JPS5930151B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005142A1 (en) * 1994-08-16 1996-02-22 The Water Board Method of alkaline flocculation for waste water streams
JP2016022407A (en) * 2014-07-17 2016-02-08 日本ドライケミカル株式会社 Waste disposal system for fire-extinction liquid emitted from foam fire-extinguishment equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63157768U (en) * 1987-04-03 1988-10-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005142A1 (en) * 1994-08-16 1996-02-22 The Water Board Method of alkaline flocculation for waste water streams
JP2016022407A (en) * 2014-07-17 2016-02-08 日本ドライケミカル株式会社 Waste disposal system for fire-extinction liquid emitted from foam fire-extinguishment equipment

Also Published As

Publication number Publication date
JPS5930151B2 (en) 1984-07-25

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