JP5549591B2 - 淡水製造方法及び淡水製造装置 - Google Patents
淡水製造方法及び淡水製造装置 Download PDFInfo
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- JP5549591B2 JP5549591B2 JP2010523212A JP2010523212A JP5549591B2 JP 5549591 B2 JP5549591 B2 JP 5549591B2 JP 2010523212 A JP2010523212 A JP 2010523212A JP 2010523212 A JP2010523212 A JP 2010523212A JP 5549591 B2 JP5549591 B2 JP 5549591B2
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- Prior art keywords
- water
- semipermeable membrane
- supply water
- supply
- membrane unit
- Prior art date
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Images
Classifications
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- 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
- B01D61/06—Energy recovery
-
- 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
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
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- 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
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/18—Removal of treatment agents after treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/18—Removal of treatment agents after treatment
- C02F2303/185—The treatment agent being halogen or a halogenated compound
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C02F3/1236—Particular type of activated sludge installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
(1) 水質の異なる複数種の供給水を、半透膜を透過させて淡水を製造する淡水製造方法であって、半透膜を備えた半透膜ユニットに供給される複数種の供給水のうちの一部(第1供給水という)は、前記半透膜ユニットから排出される濃縮水の圧力エネルギーを回収する圧力交換式エネルギー回収ユニットを利用して昇圧し、前記複数種の供給水のうちの残り(第2供給水という)は、高圧ポンプにより昇圧し、昇圧した前記第1供給水及び前記第2供給水を合わせて前記半透膜ユニットに供給する淡水製造方法。
(2) 前記第1供給水は、前記第2供給水よりも全塩濃度が高い、前記(1)記載の淡水製造方法。
(3) 前記第1供給水の昇圧前の圧力は、前記第2供給水の昇圧前の圧力よりも低い、前記(2)記載の淡水製造方法。
(4) 前記第1供給水または前記第2供給水は、前記半透膜ユニットとは異なる半透膜ユニットからの濃縮水である、前記(1)〜(3)いずれかに記載に淡水製造方法。
(5) 水質の異なる複数種の供給水を合わせて処理し透過水と濃縮水とを排出する半透膜ユニットと、前記複数種の供給水のうちの一部(第1供給水という)を前記半透膜ユニットに供給する第1供給水ラインと、前記複数種の供給水のうちの残り(第2供給水という)を前記半透膜ユニットに供給する第2供給水ラインと、前記半透膜ユニットから排出される濃縮水の圧力エネルギーを回収する圧力交換式エネルギー回収ユニットとを備え、前記圧力交換式エネルギー回収ユニットは、回収した圧力エネルギーで前記第1供給水を昇圧するように配設されてなり、さらに、前記第2供給水ラインには、前記第2供給水を昇圧する高圧ポンプを備えている淡水製造装置。
(6) 前記半透膜ユニットとは異なる半透膜ユニットを、該半透膜ユニットからの濃縮水が前記第1供給水として使用されるように前記第1供給水ラインに、または、該半透膜ユニットからの濃縮水が前記第2供給水として使用されるように前記第2供給水ラインに、備えている、前記(5)記載の淡水製造装置。
2:第1取水ポンプ
3:第1前処理ユニット
4:圧力交換式エネルギー回収ユニット
5:昇圧ポンプ(ブースターポンプ)
6:第2供給水タンク
7:第2取水ポンプ
8:高圧ポンプ
9:半透膜ユニット(第1半透膜ユニット)
10:生産水(淡水)
11:第2前処理ユニット
12:流量調整バルブ
13:流量調整バルブ
14:熱交換ユニット
15:排水用配管
16:濃縮排水用配管
17:半透膜ユニット(第2半透膜ユニット)
18:第2高圧ポンプ
19:浸漬型ろ過分離ユニット
22:第2薬液タンク
23:第2薬液供給ポンプ
24:第2中和薬液タンク
25:第2中和薬液供給ポンプ
26:排水バルブ
27:第1薬液タンク
28:第1薬液供給ポンプ
29:第1中和薬液タンク
30:第1中和薬液供給ポンプ
31:供給水混合タンク
Claims (8)
- 全塩濃度の異なる複数種の供給水を、半透膜を透過させて淡水を製造する淡水製造方法であって、半透膜を備えた半透膜ユニットに供給される複数種の供給水のうちの一部(第1供給水という)は、前記半透膜ユニットから排出される濃縮水の圧力エネルギーを回収する圧力交換式エネルギー回収ユニットを利用して昇圧し、前記複数種の供給水のうちの残り(第2供給水という)は、高圧ポンプにより昇圧し、昇圧した前記第1供給水及び前記第2供給水を合わせて前記半透膜ユニットに供給する淡水製造方法。
- 前記全塩濃度の異なる複数種の供給水が高濃度原水と低濃度原水である、請求項1記載の淡水製造方法。
- 前記高濃度原水が海水、海水由来の処理水または濃縮水であり、前記低濃度原水が河川水、地下水または廃水処理水である、請求項2記載の淡水製造方法。
- 前記第1供給水は、前記第2供給水よりも全塩濃度が高い、請求項1〜3のいずれか記載の淡水製造方法。
- 前記第1供給水の昇圧前の圧力は、前記第2供給水の昇圧前の圧力よりも低い、請求項4記載の淡水製造方法。
- 前記第1供給水または前記第2供給水は、前記半透膜ユニットとは異なる半透膜ユニットからの濃縮水である、請求項1〜5いずれかに記載に淡水製造方法。
- 全塩濃度の異なる複数種の供給水を合わせて処理し透過水と濃縮水とを排出する半透膜ユニットと、前記複数種の供給水のうちの一部(第1供給水という)を前記半透膜ユニットに供給する第1供給水ラインと、前記複数種の供給水のうちの残り(第2供給水という)を前記半透膜ユニットに供給する第2供給水ラインと、前記半透膜ユニットから排出される濃縮水の圧力エネルギーを回収する圧力交換式エネルギー回収ユニットとを備え、前記圧力交換式エネルギー回収ユニットは、回収した圧力エネルギーで前記第1供給水を昇圧するように配設されてなり、さらに、前記第2供給水ラインには、前記第2供給水を昇圧する高圧ポンプを備えている淡水製造装置。
- 前記半透膜ユニットとは異なる半透膜ユニットを、該半透膜ユニットからの濃縮水が前記第1供給水として使用されるように前記第1供給水ラインに、または、該半透膜ユニットからの濃縮水が前記第2供給水として使用されるように前記第2供給水ラインに、備えている、請求項7記載の淡水製造装置。
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JP2014128746A (ja) * | 2012-12-28 | 2014-07-10 | Hitachi Ltd | 海水淡水化装置、海水淡水化方法及び海水淡水化用凝集剤セット |
CN106132514B (zh) * | 2014-03-27 | 2019-04-05 | 株式会社荏原制作所 | 能量回收系统 |
JP5910675B2 (ja) * | 2014-07-03 | 2016-04-27 | 栗田工業株式会社 | 純水製造装置及び純水製造方法 |
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JP5967337B1 (ja) * | 2015-03-31 | 2016-08-10 | 栗田工業株式会社 | 逆浸透膜処理システムの運転方法及び逆浸透膜処理システム |
AU2016240613B2 (en) | 2015-03-31 | 2021-01-14 | Kurita Water Industries Ltd. | Reverse osmosis membrane treatment system operation method and reverse osmosis membrane treatment system |
JP6505504B2 (ja) * | 2015-05-26 | 2019-04-24 | 株式会社日立製作所 | 逆浸透膜を用いた脱塩システムおよびその運転方法 |
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US10934627B2 (en) * | 2016-05-06 | 2021-03-02 | Malvi Technologies, Llc | Methods and systems for making hypochlorite solution from reverse osmosis brine |
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EP2476651A4 (en) | 2014-07-02 |
MX2012002889A (es) | 2012-04-02 |
JPWO2011030589A1 (ja) | 2013-02-04 |
AU2010293661B2 (en) | 2015-08-27 |
SG178514A1 (en) | 2012-03-29 |
WO2011030589A1 (ja) | 2011-03-17 |
AU2010293661A1 (en) | 2012-03-01 |
CN102482123A (zh) | 2012-05-30 |
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US20120168378A1 (en) | 2012-07-05 |
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