JP6144574B2 - 海水淡水化システムおよび海水淡水化方法 - Google Patents
海水淡水化システムおよび海水淡水化方法 Download PDFInfo
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- 239000013535 sea water Substances 0.000 title claims description 152
- 238000010612 desalination reaction Methods 0.000 title claims description 52
- 238000000034 method Methods 0.000 title claims description 12
- 238000011045 prefiltration Methods 0.000 claims description 111
- 239000012528 membrane Substances 0.000 claims description 100
- 238000000108 ultra-filtration Methods 0.000 claims description 70
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/04—Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
- B01D61/146—Ultrafiltration comprising multiple ultrafiltration steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/22—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2649—Filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2317/00—Membrane module arrangements within a plant or an apparatus
- B01D2317/02—Elements in series
- B01D2317/025—Permeate series
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Filtration Of Liquid (AREA)
Description
2 取水部
3 前濾過部
4 後濾過部
10 制御部
30 切替部
31 第1前濾過ライン
32 第2前濾過ライン
41 逆浸透膜ユニット
51 第1測定部
91 砂層
315 第1限外濾過膜
325 第2限外濾過膜
S1〜S5 ステップ
Claims (5)
- 海水淡水化システムであって、
海底の砂層内に埋め込まれ、砂層を浸透した海水を取水する取水部と、
前記取水部から送られる海水を限外濾過膜により濾過する前濾過部と、
前記前濾過部から送られる海水を逆浸透膜により濾過する後濾過部と、
前記取水部により取水された海水中の溶存酸素量を測定する測定部と、
制御部と、
を備え、
前記前濾過部が、
一の分画分子量の第1限外濾過膜を有する第1前濾過ラインと、
前記第1前濾過ラインと並列に設けられるとともに、前記一の分画分子量よりも小さい分画分子量の第2限外濾過膜を有する第2前濾過ラインと、
前記取水部からの海水が流れる経路を、前記第1前濾過ラインと前記第2前濾過ラインとの間で切り替える切替部と、
を備え、
前記制御部が、前記測定部における溶存酸素量の測定値に従って前記切替部を制御することにより、前記溶存酸素量の測定値が所定値よりも高い場合には前記第2前濾過ラインが利用され、前記溶存酸素量の測定値が所定値以下である場合には前記第1前濾過ラインが利用されることを特徴とする海水淡水化システム。 - 請求項1に記載の海水淡水化システムであって、
前記第2限外濾過膜の分画分子量が、30000以下であることを特徴とする海水淡水化システム。 - 請求項1または2に記載の海水淡水化システムであって、
前記取水部、前記前濾過部および前記後濾過部の設置直後の初期動作時を除く定常動作において、塩素を含む薬剤が、前記取水部から前記後濾過部に至る海水の経路中に注入されないことを特徴とする海水淡水化システム。 - 海水淡水化システムにおける海水淡水化方法であって、
前記海水淡水化システムが、
海底の砂層内に埋め込まれ、砂層を浸透した海水を取水する取水部と、
前記取水部から送られる海水を限外濾過膜により濾過する前濾過部と、
前記前濾過部から送られる海水を逆浸透膜により濾過する後濾過部と、
を備え、
前記前濾過部が、
一の分画分子量の第1限外濾過膜を有する第1前濾過ラインと、
前記第1前濾過ラインと並列に設けられるとともに、前記一の分画分子量よりも小さい分画分子量の第2限外濾過膜を有する第2前濾過ラインと、
を備え、
前記海水淡水化方法が、
a)前記取水部により取水された海水中の溶存酸素量を測定する工程と、
b)前記a)工程における溶存酸素量の測定値に従って前記取水部からの海水が流れる経路を、前記第1前濾過ラインと前記第2前濾過ラインとの間で切り替える工程と、
を備え、
前記溶存酸素量の測定値が所定値よりも高い場合には前記第2前濾過ラインが利用され、前記溶存酸素量の測定値が所定値以下である場合には前記第1前濾過ラインが利用されることを特徴とする海水淡水化方法。 - 請求項4に記載の海水淡水化方法であって、
前記取水部、前記前濾過部および前記後濾過部の設置直後の初期動作時を除く定常動作において、塩素を含む薬剤が、前記取水部から前記後濾過部に至る海水の経路中に注入されないことを特徴とする海水淡水化方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013172889A JP6144574B2 (ja) | 2013-08-23 | 2013-08-23 | 海水淡水化システムおよび海水淡水化方法 |
PCT/JP2014/003944 WO2015025473A1 (en) | 2013-08-23 | 2014-07-25 | Seawater desalination system and seawater desalination method |
AU2014310178A AU2014310178B2 (en) | 2013-08-23 | 2014-07-25 | Seawater desalination system and seawater desalination method |
US14/909,571 US9896365B2 (en) | 2013-08-23 | 2014-07-25 | Seawater desalination system and seawater desalination method |
SG11201600169YA SG11201600169YA (en) | 2013-08-23 | 2014-07-25 | Seawater desalination system and seawater desalination method |
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JP2013172889A JP6144574B2 (ja) | 2013-08-23 | 2013-08-23 | 海水淡水化システムおよび海水淡水化方法 |
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JP2015039677A JP2015039677A (ja) | 2015-03-02 |
JP6144574B2 true JP6144574B2 (ja) | 2017-06-07 |
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US (1) | US9896365B2 (ja) |
JP (1) | JP6144574B2 (ja) |
AU (1) | AU2014310178B2 (ja) |
SG (1) | SG11201600169YA (ja) |
WO (1) | WO2015025473A1 (ja) |
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JP6298357B2 (ja) * | 2014-05-23 | 2018-03-20 | アマノ株式会社 | 集塵装置 |
JP6670206B2 (ja) * | 2016-08-24 | 2020-03-18 | オルガノ株式会社 | 超純水製造装置 |
CN111072107A (zh) * | 2019-11-27 | 2020-04-28 | 天津膜天膜科技股份有限公司 | 生活饮用水给水处理工艺 |
CN116161829B (zh) * | 2023-04-14 | 2023-07-07 | 杭州浙江工业大学环境技术有限公司 | 一种海水养殖尾水排放净化器 |
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JPH0299191A (ja) * | 1988-10-06 | 1990-04-11 | Nkk Corp | 溶存酸素濃度自動制御方法 |
JPH0729115B2 (ja) * | 1990-03-23 | 1995-04-05 | 荏原インフイルコ株式会社 | し尿系汚水の処理方法 |
JPH09234353A (ja) * | 1996-02-29 | 1997-09-09 | Dainippon Ink & Chem Inc | 油濁汚染水の浄化方法 |
JP2003245666A (ja) * | 2002-02-25 | 2003-09-02 | Kobe Steel Ltd | 海水の処理法 |
WO2005092799A1 (en) * | 2004-03-26 | 2005-10-06 | U.S. Filter Wastewater Group, Inc. | Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis |
JPWO2006057249A1 (ja) | 2004-11-24 | 2008-06-05 | 日立造船株式会社 | 逆浸透膜法海水淡水化装置 |
JPWO2008096585A1 (ja) * | 2007-02-05 | 2010-05-20 | 東レ株式会社 | ろ過装置および水処理方法 |
JP2012246711A (ja) | 2011-05-30 | 2012-12-13 | Hitachi Zosen Corp | 海水の浸透取水ろ過方法及び砂層表面の目詰まり防止装置 |
JP5822623B2 (ja) | 2011-09-30 | 2015-11-24 | 日立造船株式会社 | 海水の浸透ろ過方法及び浸透取水ユニット |
JP5822644B2 (ja) | 2011-10-20 | 2015-11-24 | 日立造船株式会社 | 海水の浸透取水におけるろ過層の洗浄装置 |
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WO2015025473A1 (en) | 2015-02-26 |
AU2014310178A1 (en) | 2016-04-14 |
JP2015039677A (ja) | 2015-03-02 |
US20160176740A1 (en) | 2016-06-23 |
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US9896365B2 (en) | 2018-02-20 |
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