JPS5667511A - Washing method of filter layer which comprises particulate filter medium - Google Patents
Washing method of filter layer which comprises particulate filter mediumInfo
- Publication number
- JPS5667511A JPS5667511A JP14470979A JP14470979A JPS5667511A JP S5667511 A JPS5667511 A JP S5667511A JP 14470979 A JP14470979 A JP 14470979A JP 14470979 A JP14470979 A JP 14470979A JP S5667511 A JPS5667511 A JP S5667511A
- Authority
- JP
- Japan
- Prior art keywords
- washing water
- valve
- washing
- air
- filter layer
- 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
- Filtration Of Liquid (AREA)
Abstract
PURPOSE: To make possible the washing of compact coagulative suspended materials which are difficult to be fined by agitating and washing the particulate filter media by the parallel flow of the air and washing water supplied simultaneously from the lower part of the filter layer and discharging the washing water after sedimentation and separation.
CONSTITUTION: To start the washing of a filter layer 2, a filtering raw water inlet valve 4 and a filtered water outlet valve 6 are closed and an air vent valve 5 and a washing water discharge valve 12 are opened to extract the water to be filtered. Next, the valve 12 is closed and a washing water supply valve 7 and an air blow valve 10 are opened, and a washing water pump 8 and an air blower 9 are operated to eject air and washing water simultaneously from a strainer 3. When the washing water which disturbs and spreads the particulate filter media arrives at the preset liq. level 13 in the upper part of the filter layer 1, the feeding of the washing water and air is suspended and the sedimentation of the filter media is waited, thence the washing water is discharged from the valve 12 to the outside of the filter vessel 1 via an extraction port 14.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14470979A JPS5667511A (en) | 1979-11-07 | 1979-11-07 | Washing method of filter layer which comprises particulate filter medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14470979A JPS5667511A (en) | 1979-11-07 | 1979-11-07 | Washing method of filter layer which comprises particulate filter medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5667511A true JPS5667511A (en) | 1981-06-06 |
Family
ID=15368456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14470979A Pending JPS5667511A (en) | 1979-11-07 | 1979-11-07 | Washing method of filter layer which comprises particulate filter medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5667511A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5995909A (en) * | 1982-11-22 | 1984-06-02 | Hitachi Plant Eng & Constr Co Ltd | Washing method of filtering device |
JPS6068014A (en) * | 1983-09-21 | 1985-04-18 | Renzo Naito | Filtration device using pebble |
JPH04200604A (en) * | 1990-11-30 | 1992-07-21 | Tokyo Metropolis | Washing method for packed bed equipment |
JP2002119807A (en) * | 2000-10-17 | 2002-04-23 | Sumitomo Heavy Ind Ltd | Method of back washing filter device |
KR100716030B1 (en) | 2005-06-24 | 2007-05-14 | 한국지하수테크 주식회사 | Water Purifying Apparatus Uasing Auto Reverse Stream of Air-Water Mixture |
JP2015147155A (en) * | 2014-02-04 | 2015-08-20 | オルガノ株式会社 | Apparatus and method for treating water containing iron/manganese |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330071A (en) * | 1976-09-01 | 1978-03-20 | Mitsubishi Kakoki Kk | Sand filtrating method and system |
-
1979
- 1979-11-07 JP JP14470979A patent/JPS5667511A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330071A (en) * | 1976-09-01 | 1978-03-20 | Mitsubishi Kakoki Kk | Sand filtrating method and system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5995909A (en) * | 1982-11-22 | 1984-06-02 | Hitachi Plant Eng & Constr Co Ltd | Washing method of filtering device |
JPS6068014A (en) * | 1983-09-21 | 1985-04-18 | Renzo Naito | Filtration device using pebble |
JPH0521602B2 (en) * | 1983-09-21 | 1993-03-25 | Renzo Naito | |
JPH04200604A (en) * | 1990-11-30 | 1992-07-21 | Tokyo Metropolis | Washing method for packed bed equipment |
JP2002119807A (en) * | 2000-10-17 | 2002-04-23 | Sumitomo Heavy Ind Ltd | Method of back washing filter device |
KR100716030B1 (en) | 2005-06-24 | 2007-05-14 | 한국지하수테크 주식회사 | Water Purifying Apparatus Uasing Auto Reverse Stream of Air-Water Mixture |
JP2015147155A (en) * | 2014-02-04 | 2015-08-20 | オルガノ株式会社 | Apparatus and method for treating water containing iron/manganese |
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