JPS57150480A - Treatment of waste water - Google Patents

Treatment of waste water

Info

Publication number
JPS57150480A
JPS57150480A JP3606481A JP3606481A JPS57150480A JP S57150480 A JPS57150480 A JP S57150480A JP 3606481 A JP3606481 A JP 3606481A JP 3606481 A JP3606481 A JP 3606481A JP S57150480 A JPS57150480 A JP S57150480A
Authority
JP
Japan
Prior art keywords
tank
water
flocculating
settling
polluted water
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
JP3606481A
Other languages
Japanese (ja)
Inventor
Masao Tada
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.)
Fuji Engineering Co Ltd
Original Assignee
Fuji 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 Fuji Engineering Co Ltd filed Critical Fuji Engineering Co Ltd
Priority to JP3606481A priority Critical patent/JPS57150480A/en
Publication of JPS57150480A publication Critical patent/JPS57150480A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

PURPOSE: To reduce the used amount of org. flocculating agents and to perform efficient treatment by returning part of the treated water obtained by subjecting polluted water to flocculating and settling into a raw water tank, and subjecting the same repeatedly to flocculating, settling and separating while reducing the concn. of the polluted water.
CONSTITUTION: Polluted water from civil engineering works, etc. is introduced into a raw water tank 1, from which it is transferred to a flocculating, settling and separating tank 3 by a lift pump 2, whereby it is flocculated and separated. Part of the treated water overflowing from a trough 4 is returned into the tank 1 and the rest is released. Thence, a motor M is driven to revolve an agitating impeller 6 provided to an agitating shaft 5 so that the org. flocculating agents injected into the water and the polluted water are throughly agitated to allow huge flocs to settle and separate on the tank bottom. The treated water after the sepn. is overflowed into the trough 4. The huge flocs settled on the bottom of the tank 3 is gathered at one place by sludge gathering vanes 7 and is discharged as concd. sludge with a discharge pump 7.
COPYRIGHT: (C)1982,JPO&Japio
JP3606481A 1981-03-13 1981-03-13 Treatment of waste water Pending JPS57150480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3606481A JPS57150480A (en) 1981-03-13 1981-03-13 Treatment of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3606481A JPS57150480A (en) 1981-03-13 1981-03-13 Treatment of waste water

Publications (1)

Publication Number Publication Date
JPS57150480A true JPS57150480A (en) 1982-09-17

Family

ID=12459282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3606481A Pending JPS57150480A (en) 1981-03-13 1981-03-13 Treatment of waste water

Country Status (1)

Country Link
JP (1) JPS57150480A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01307491A (en) * 1988-06-07 1989-12-12 Iseki Tory Tech Inc Treatment of mud water
JPH03202194A (en) * 1989-12-28 1991-09-03 Mitani Sekisan Co Ltd Treatment method for high concentration sludge and dewatering apparatus
US6447687B1 (en) 1997-04-30 2002-09-10 Ciba Specialty Chemcials Water Treatments Ltd. Dewatering of sewage sludge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01307491A (en) * 1988-06-07 1989-12-12 Iseki Tory Tech Inc Treatment of mud water
JPH03202194A (en) * 1989-12-28 1991-09-03 Mitani Sekisan Co Ltd Treatment method for high concentration sludge and dewatering apparatus
US6447687B1 (en) 1997-04-30 2002-09-10 Ciba Specialty Chemcials Water Treatments Ltd. Dewatering of sewage sludge

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