JPS57150480A - Treatment of waste water - Google Patents
Treatment of waste waterInfo
- 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
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
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)
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 |
-
1981
- 1981-03-13 JP JP3606481A patent/JPS57150480A/en active Pending
Cited By (3)
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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