JPS55149617A - Continuous water clarification and filtering - Google Patents
Continuous water clarification and filteringInfo
- Publication number
- JPS55149617A JPS55149617A JP5677779A JP5677779A JPS55149617A JP S55149617 A JPS55149617 A JP S55149617A JP 5677779 A JP5677779 A JP 5677779A JP 5677779 A JP5677779 A JP 5677779A JP S55149617 A JPS55149617 A JP S55149617A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- auxiliary
- recovered
- agent
- 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.)
- Pending
Links
Abstract
PURPOSE: To reduce running cost of water filtering operation by a method wherein raw water is fed with auxiliary filter agent which has been recovered, and is filtered by filter member having auxiliary new and added auxiliary filter agent, then at the time when the filtering rate has decreased to a specified value, filter sludge is scraped, and recovered and added auxiliary filter agent is again recovered and used.
CONSTITUTION: A layered unit filter body 1 contains filter bodies 2 having additional filter agent 11 on membrane 10 precoated with filter agent such as kieselguhr, raw water inlets 5, and a center rotary shaft 7 having filter-sludge scraper plate and filter sludge discharge pipes 8. Raw water body fed with recovered additional auxiliary agent is filtered and when the filtering rate has reduced to a predetermined value, the rotary shaft 7 is rotated for about one minute to scrape off part of the added auxiliary layer, which is discharged by pump 14 to the outside and is recovered for reuse. The scraping position is lowered at each time of the operation until it reaches the predetermined position. Then the scraper plate is returned to the position a, and new auxiliary filter agent 11 is added up to the position a. This eliminates the need for backwash and provides a filter capacity twice that of the conventional method.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5677779A JPS55149617A (en) | 1979-05-09 | 1979-05-09 | Continuous water clarification and filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5677779A JPS55149617A (en) | 1979-05-09 | 1979-05-09 | Continuous water clarification and filtering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55149617A true JPS55149617A (en) | 1980-11-21 |
Family
ID=13036866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5677779A Pending JPS55149617A (en) | 1979-05-09 | 1979-05-09 | Continuous water clarification and filtering |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55149617A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004534645A (en) * | 2001-07-18 | 2004-11-18 | ポール・コーポレーション | Method using auxiliary filter agent for filtration purpose |
| JP2009066568A (en) * | 2007-09-18 | 2009-04-02 | Fujifilm Corp | Method and device for recovering filter aid |
| JP2010131500A (en) * | 2008-12-03 | 2010-06-17 | Sumitomo Heavy Ind Ltd | Sludge treatment method and sludge treatment apparatus |
-
1979
- 1979-05-09 JP JP5677779A patent/JPS55149617A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004534645A (en) * | 2001-07-18 | 2004-11-18 | ポール・コーポレーション | Method using auxiliary filter agent for filtration purpose |
| JP2009066568A (en) * | 2007-09-18 | 2009-04-02 | Fujifilm Corp | Method and device for recovering filter aid |
| JP2010131500A (en) * | 2008-12-03 | 2010-06-17 | Sumitomo Heavy Ind Ltd | Sludge treatment method and sludge treatment apparatus |
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