JPS58210803A - Desalting method of sea water - Google Patents
Desalting method of sea waterInfo
- Publication number
- JPS58210803A JPS58210803A JP57093994A JP9399482A JPS58210803A JP S58210803 A JPS58210803 A JP S58210803A JP 57093994 A JP57093994 A JP 57093994A JP 9399482 A JP9399482 A JP 9399482A JP S58210803 A JPS58210803 A JP S58210803A
- Authority
- JP
- Japan
- Prior art keywords
- water
- reverse osmosis
- sea water
- pump
- sea
- 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
Classifications
-
- 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
- B01D61/10—Accessories; Auxiliary operations
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明は海水淡水化方法に関し、さらに詳しくは逆浸透
法による海水淡水化方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seawater desalination method, and more particularly to a seawater desalination method using reverse osmosis.
海水淡水化の方式は、大別して蒸発法、電気透析法、逆
浸透法に分けられる。これらの方式のうち逆浸透法は逆
浸透膜を利用するもので、省エネルギーの観点から、最
近、特に注目されている。Seawater desalination methods can be broadly divided into evaporation, electrodialysis, and reverse osmosis. Among these methods, the reverse osmosis method uses a reverse osmosis membrane, and has recently attracted particular attention from the viewpoint of energy saving.
逆浸透膜法による淡水化装置は、海水をポンプにより汲
み上げて高圧しく５０〜６ｏｋｇ／ｃ−Ｊ）、これを逆
浸透膜を装置化したモジュールに通して淡水とするもの
である。上記モジュールとしては、（１）膜をのり巻状
に巻いたスパイラル型、（２）極細の中空糸を適当に束
ねたホローファイバー型、（３）中空糸を太くしたチュ
ーブ型の三タイプが主として使用されている。A desalination device using a reverse osmosis membrane method pumps up seawater using a pump and applies high pressure (50 to 6 ok/c-J), and passes it through a module equipped with a reverse osmosis membrane to produce fresh water. There are three main types of modules mentioned above: (1) a spiral type in which the membrane is wound into a spiral shape, (2) a hollow fiber type in which ultra-fine hollow fibers are appropriately bundled, and (3) a tube type in which the hollow fibers are thickened. It is used.
上記のような海水淡水化装置は、淡水化の駆動力が高圧
をかけるためのポンプ動力だけであるので、他の方式に
比ベエネルギー消費量が少ないが、それでも、高圧にす
る操作が必要であり、まだそのためにエネルギーを要す
るという問題がある。The seawater desalination equipment described above consumes less energy than other methods because the only driving force for desalination is pump power to apply high pressure, but it still requires operations to generate high pressure. However, there is still the problem that energy is required for this purpose.
例えば８００ ｒｅ？ ７日の規模で淡水を生産する場
合、逆浸透膜装置では２００〜３００ＫＷの電力エネル
ギーが必要とされるが、このうち、海水を汲み上げる取
水装置および海水を高圧にするポンプ等のエネルギーが
８０％以上を占めている。 ゛本°発明の目的
は、上記の問題点に鑑み、海水の取水装置および高圧ポ
ンプ等の加圧装置を不要とし、エネルギー消費量の極め
て少ない逆浸透法による海水淡水化方法を提供すること
にある。For example, 800 re? To produce fresh water on a seven-day scale, a reverse osmosis membrane device requires 200 to 300 kW of electrical energy, but 80% of this energy is used for the water intake device that pumps up seawater and the pump that pressurizes seawater. It accounts for more than In view of the above-mentioned problems, the purpose of the present invention is to provide a seawater desalination method using reverse osmosis, which eliminates the need for a seawater intake device and a pressurizing device such as a high-pressure pump, and consumes extremely little energy. be.
本発明は、逆浸透膜装置の圧力として海底の圧力を利用
しようとするもので、逆浸透膜装置をその作動圧力に相
当する深さの海面下に配置し、その位置の高圧海水を逆
浸透膜に通過させて常圧の淡水を得ることを特徴とする
ものである。The present invention attempts to use the pressure of the seabed as the pressure of the reverse osmosis membrane device, and the reverse osmosis membrane device is placed below the sea surface at a depth equivalent to its operating pressure, and the high-pressure seawater at that location is used for reverse osmosis. It is characterized by passing fresh water through a membrane to obtain fresh water at normal pressure.
以下、本発明を図面によりさらに詳細に説明する。Hereinafter, the present invention will be explained in more detail with reference to the drawings.
第１図は、本発明方法を実施するだめの装置系統を示し
た概略図、第２図は、その主要部の詳細構成を示すりで
ある。図において、この装置系統は、海面下に設けられ
た逆浸透膜装置２と、該逆浸透膜装置２のモジュール２
人に連通された透過水槽３から構成される。上記逆浸透
膜装置２には水中ポンプ６から前処理装置７を経て原汚
水１０が導入される。上記水中ポンプ６は、例えば海面
下５００〜６００ｍのところに設置され、高圧の原汚水
を逆浸透装置２に移送させるためのものである。FIG. 1 is a schematic diagram showing an apparatus system for carrying out the method of the present invention, and FIG. 2 shows a detailed configuration of the main parts thereof. In the figure, this equipment system includes a reverse osmosis membrane device 2 installed below the sea surface, and a module 2 of the reverse osmosis membrane device 2.
It consists of a permeated water tank 3 that is connected to a person. Raw sewage 10 is introduced into the reverse osmosis membrane device 2 from a submersible pump 6 via a pretreatment device 7 . The submersible pump 6 is installed, for example, 500 to 600 m below the sea level, and is for transferring high-pressure raw sewage to the reverse osmosis device 2.
また前処理装置１では逆浸透装置の処理条件に合致させ
るためのｐＨの調整およびフィルター装置等が内蔵され
ている。前記逆浸透膜装置２内には逆浸透モジュール２
人が内蔵され、原汚水の濃縮海水８と淡水５とに分離す
る。Further, the pretreatment device 1 includes a built-in pH adjustment and filter device to match the treatment conditions of the reverse osmosis device. A reverse osmosis module 2 is provided in the reverse osmosis membrane device 2.
A person is built in and separates the raw sewage into concentrated seawater 8 and fresh water 5.
上記逆浸透膜装置への供給海水の圧力は例えば５０〜６
０気圧程度であり、逆浸透モジュールを透過した淡水の
圧力は常圧（１気圧）である。得られた淡水５け透過水
槽３内に貯蔵され、さらに必要に応じて淡水汲上げポン
プ４より陸上まで汲み上げられる。逆浸透モジュール２
人とｌ−ては、原汚水の前処理が簡単で膜の汚れに対１
．て強いスパイラル型のものが適しているが、他、Ｑタ
イプのものでもよい。The pressure of the seawater supplied to the reverse osmosis membrane device is, for example, 50 to 6
The pressure of the fresh water that has passed through the reverse osmosis module is normal pressure (1 atm). The obtained fresh water is stored in a five-cell permeable water tank 3, and further pumped to land by a fresh water pump 4 as needed. Reverse osmosis module 2
For humans and l-, pre-treatment of raw sewage is easy, and it is 1-1 against fouling of the membrane.
．． A strong spiral type is suitable, but a Q type may also be used.
上記実施例において、破線で示した汲み上げポンプ４は
、得られた淡水を海底でそのまオ使用する場合には設置
を省略することができる。まだ上記実施例は、逆浸透膜
装置２の作動圧力を５０〜６ｏ ｋｇ／ａｒｔとして使
用するために該装置を５００〜６００ｍのところに設置
した例について述べたが、この設置深さは逆浸透膜装置
の性能に応じて適当な深さにすることができる。In the above embodiment, the pump 4 shown by the broken line can be omitted if the obtained fresh water is used directly on the seabed. The above embodiment described an example in which the reverse osmosis membrane device 2 was installed at a distance of 500 to 600 m in order to use the operating pressure at 50 to 6 kg/art. The depth can be adjusted to suit the performance of the membrane device.
以上、本発明によれば、逆浸透膜装置に必要な高圧が海
底で得られるので、海水を高圧にするポンプ等の昇圧装
置および海水を汲み上げるための取水装置等が不要にな
り、海水淡水化に要するエネルギーを大幅に節減するこ
とができる。As described above, according to the present invention, the high pressure required for the reverse osmosis membrane device can be obtained on the seabed, so there is no need for a pressure booster such as a pump that increases the pressure of seawater and a water intake device for pumping up seawater. The energy required for this can be significantly reduced.
第１図は、本発明方法を実施するための装置系統の概略
構成を示す図、第２図は、その主要部の詳細を示す図で
ある。符号の説明は下記のとおりである。
ｌ・・・・・・海面、２・・・・・・逆浸透膜装置、３
・・・・・・透過水槽、４・・・・・・汲み上げポンプ
、５・・・・・・淡水、６・・・・・・水中ポンプ、７
・・−・・・前処理装置、８・・・・・・濃縮海水。
代理人 弁理士 川 北 武 長FIG. 1 is a diagram showing a schematic configuration of an apparatus system for carrying out the method of the present invention, and FIG. 2 is a diagram showing details of the main parts thereof. The explanation of the symbols is as follows. l...Sea level, 2...Reverse osmosis membrane device, 3
... Permeation tank, 4 ... Pumping pump, 5 ... Fresh water, 6 ... Submersible pump, 7
...--Pretreatment device, 8... Concentrated seawater. Agent Patent Attorney Takeshi Kawakita
Claims (1)
面下に設置し、その位置の高圧海水を逆浸透膜に通過さ
せて常圧の淡水を得ることを特徴とする海水淡水化方法
。 （２、特許請求の範囲第１項において、前記作動圧力と
する海水淡水化方法。(1) Seawater desalination characterized by installing a reverse osmosis membrane device under the sea surface at a depth corresponding to its operating pressure, and passing high-pressure seawater at that location through the reverse osmosis membrane to obtain freshwater at normal pressure. Method. (2. The seawater desalination method according to claim 1, wherein the operating pressure is as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57093994A JPS58210803A (en) | 1982-06-03 | 1982-06-03 | Desalting method of sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57093994A JPS58210803A (en) | 1982-06-03 | 1982-06-03 | Desalting method of sea water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58210803A true JPS58210803A (en) | 1983-12-08 |
Family
ID=14097952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57093994A Pending JPS58210803A (en) | 1982-06-03 | 1982-06-03 | Desalting method of sea water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58210803A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0266290U (en) * | 1988-11-01 | 1990-05-18 | ||
| WO1996031436A1 (en) * | 1995-04-07 | 1996-10-10 | Vazquez Figueroa Rial | Plant and process for desalting marine water by reverse osmosis, by means of hydrostatic pressure |
| ES2112206A1 (en) * | 1996-01-26 | 1998-03-16 | Guzman Martinez Valls Gines | System with fixed or movable support for desalinating sea water with reverse osmosis cell device, immersed at variable working depths |
| ES2130981A1 (en) * | 1997-03-11 | 1999-07-01 | Cervantes Jose Amores | Seawater desalinator |
-
1982
- 1982-06-03 JP JP57093994A patent/JPS58210803A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0266290U (en) * | 1988-11-01 | 1990-05-18 | ||
| WO1996031436A1 (en) * | 1995-04-07 | 1996-10-10 | Vazquez Figueroa Rial | Plant and process for desalting marine water by reverse osmosis, by means of hydrostatic pressure |
| ES2112206A1 (en) * | 1996-01-26 | 1998-03-16 | Guzman Martinez Valls Gines | System with fixed or movable support for desalinating sea water with reverse osmosis cell device, immersed at variable working depths |
| ES2130981A1 (en) * | 1997-03-11 | 1999-07-01 | Cervantes Jose Amores | Seawater desalinator |
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