JP5230073B2 - ろ過膜の膜損傷検知試験方法 - Google Patents
ろ過膜の膜損傷検知試験方法 Download PDFInfo
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- JP5230073B2 JP5230073B2 JP2006074482A JP2006074482A JP5230073B2 JP 5230073 B2 JP5230073 B2 JP 5230073B2 JP 2006074482 A JP2006074482 A JP 2006074482A JP 2006074482 A JP2006074482 A JP 2006074482A JP 5230073 B2 JP5230073 B2 JP 5230073B2
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- 239000012528 membrane Substances 0.000 title claims description 126
- 238000001914 filtration Methods 0.000 title claims description 28
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 109
- 230000008859 change Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 26
- 238000010586 diagram Methods 0.000 description 10
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- 238000012360 testing method Methods 0.000 description 9
- 238000011001 backwashing Methods 0.000 description 8
- 239000012510 hollow fiber Substances 0.000 description 8
- 238000005374 membrane filtration Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
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- 238000001471 micro-filtration Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Description
(1)膜モジュールの二次側が(ほとんどの場合一次側も)水で満たされていること。
(2)図1に示す各種の開閉弁が全て閉になっていること。
Claims (2)
- ろ過膜を有する膜モジュールに加圧気体を導入し、予め設定した圧力に到達した際に前記加圧気体の導入を停止して加圧側を密閉し、密閉後の高圧空間における圧力の経時変化から膜損傷状態を診断するろ過膜の膜損傷検知試験方法において、
前記膜モジュールを、縦型でかつ原水を膜モジュールの一次側の膜モジュール軸方向の集水部(エンドキャップ)を介して注入し、膜モジュールの二次側にろ過水を膜モジュール軸方向の両側または片側に送出するものとし、
前記膜モジュールの一次側に加圧気体を導入し、気体の加圧により膜モジュールの一次側の水を二次側に移動させ、前記一次側の水位が、膜モジュール下側の前記エンドキャップ上端部に到達し、かつ加圧気体の圧力が加圧手段の設定圧力値に到達した時点で、加圧気体の導入を停止し、二次側には水が充填された状態で一次側の気体の圧力を保持し、この保持圧力の経時変化から膜損傷状態を診断することを特徴とするろ過膜の膜損傷検知試験方法。 - 請求項1に記載の試験方法において、前記膜モジュールの一次側に加圧気体を導入し、気体の加圧により膜モジュールの一次側の水を二次側に移動させる前に、一次側の水を自重により自然落下させ、一次側の水位が、水位変動時間によって予め定めた所定の中間水位に到達後に、前記加圧気体の導入を開始することを特徴とするろ過膜の膜損傷検知試験方法。
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JP2006074482A JP5230073B2 (ja) | 2006-03-17 | 2006-03-17 | ろ過膜の膜損傷検知試験方法 |
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JP2006074482A JP5230073B2 (ja) | 2006-03-17 | 2006-03-17 | ろ過膜の膜損傷検知試験方法 |
Publications (2)
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JP2007245060A JP2007245060A (ja) | 2007-09-27 |
JP5230073B2 true JP5230073B2 (ja) | 2013-07-10 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103463993A (zh) * | 2013-09-16 | 2013-12-25 | 沃德思源集团有限公司 | 一种反渗透膜与膜壳连接处密封性的检测方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012148218A (ja) * | 2011-01-17 | 2012-08-09 | Sekisui Chem Co Ltd | 中空糸膜モジュールのリーク検査方法 |
KR101952288B1 (ko) | 2016-12-19 | 2019-05-17 | 예일 유니버시티 | 자가 복원이 가능한 하이드로겔 충진 수처리용 분리막의 제조방법 |
CN109580126A (zh) * | 2019-01-18 | 2019-04-05 | 楚天科技股份有限公司 | 一种冻干机过滤器的完整性检测系统及方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000279769A (ja) * | 1999-03-29 | 2000-10-10 | Nkk Corp | 膜破損検知方法、その装置、および膜分離装置 |
JP2000342936A (ja) * | 1999-06-02 | 2000-12-12 | Nkk Corp | 中空糸膜ろ過装置の膜損傷検知方法及び膜損傷検知装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103463993A (zh) * | 2013-09-16 | 2013-12-25 | 沃德思源集团有限公司 | 一种反渗透膜与膜壳连接处密封性的检测方法 |
CN103463993B (zh) * | 2013-09-16 | 2015-06-17 | 沃德思源集团有限公司 | 一种反渗透膜与膜壳连接处密封性的检测方法 |
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