JP5230076B2 - ろ過膜の洗浄装置 - Google Patents
ろ過膜の洗浄装置 Download PDFInfo
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- JP5230076B2 JP5230076B2 JP2006074486A JP2006074486A JP5230076B2 JP 5230076 B2 JP5230076 B2 JP 5230076B2 JP 2006074486 A JP2006074486 A JP 2006074486A JP 2006074486 A JP2006074486 A JP 2006074486A JP 5230076 B2 JP5230076 B2 JP 5230076B2
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- JP
- Japan
- Prior art keywords
- backwash
- valve
- line
- backwashing
- filtration membrane
- 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.)
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- 239000012528 membrane Substances 0.000 title claims description 43
- 238000001914 filtration Methods 0.000 title claims description 35
- 238000004140 cleaning Methods 0.000 title claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 64
- 238000011001 backwashing Methods 0.000 claims description 44
- 239000000126 substance Substances 0.000 claims description 40
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 31
- 239000005708 Sodium hypochlorite Substances 0.000 description 12
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 12
- 239000000706 filtrate Substances 0.000 description 9
- 238000005374 membrane filtration Methods 0.000 description 7
- 238000005406 washing Methods 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- -1 waterworks Substances 0.000 description 1
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
Claims (4)
- 原水を浄化処理して処理水を得るろ過膜と、前記処理水の一部を前記ろ過膜の逆洗水として用いてろ過膜の逆洗を行う逆洗ラインと、この逆洗ラインに薬品を添加して逆洗を行う薬品注入ラインとを備えた薬品添加逆洗方式のろ過膜の洗浄装置において、
前記逆洗ラインは、その一部に前記逆洗水のバイパスラインを備え、かつ前記逆洗ライン及びバイパスラインの内、一方に開閉弁を他方に定流量弁を備え、
薬品を添加しない通常の逆洗の際には、前記逆洗ラインとバイパスラインとに並列に逆洗水を通流し、薬品を添加する薬品添加逆洗の際には、前記開閉弁を閉とし、前記定流量弁を備えたライン(逆洗ライン又はバイパスライン)のみに通流するようにしたことを特徴とするろ過膜の洗浄装置。 - 請求項1に記載のろ過膜の洗浄装置において、前記開閉弁を備えた逆洗ライン又はバイパスラインは、開閉弁と直列に絞り部材を備えたことを特徴とするろ過膜の洗浄装置。
- 請求項2に記載のろ過膜の洗浄装置において、前記絞り部材はオリフィスあるいは流量調節機能付弁としたことを特徴とするろ過膜の洗浄装置。
- 請求項1ないし3のいずれか1項に記載のろ過膜の洗浄装置において、前記開閉弁と共に流量制御弁を設けたことを特徴とするろ過膜の洗浄装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006074486A JP5230076B2 (ja) | 2006-03-17 | 2006-03-17 | ろ過膜の洗浄装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006074486A JP5230076B2 (ja) | 2006-03-17 | 2006-03-17 | ろ過膜の洗浄装置 |
Publications (2)
Publication Number | Publication Date |
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JP2007245064A JP2007245064A (ja) | 2007-09-27 |
JP5230076B2 true JP5230076B2 (ja) | 2013-07-10 |
Family
ID=38589912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006074486A Active JP5230076B2 (ja) | 2006-03-17 | 2006-03-17 | ろ過膜の洗浄装置 |
Country Status (1)
Country | Link |
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JP (1) | JP5230076B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101749158B1 (ko) * | 2009-10-30 | 2017-07-04 | 오아시스 워터, 인크. | 삼투 분리 시스템 및 방법 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3454900B2 (ja) * | 1994-01-20 | 2003-10-06 | ダイセル化学工業株式会社 | 水浄化システムとその運転方法 |
JPH10192665A (ja) * | 1997-01-09 | 1998-07-28 | Maezawa Ind Inc | 膜の逆洗浄処理方法 |
JP2005087887A (ja) * | 2003-09-17 | 2005-04-07 | Fuji Electric Systems Co Ltd | 膜の洗浄方法 |
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2006
- 2006-03-17 JP JP2006074486A patent/JP5230076B2/ja active Active
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JP2007245064A (ja) | 2007-09-27 |
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