CN101468856A - Seawater desalination processing method - Google Patents
Seawater desalination processing method Download PDFInfo
- Publication number
- CN101468856A CN101468856A CNA2007100604961A CN200710060496A CN101468856A CN 101468856 A CN101468856 A CN 101468856A CN A2007100604961 A CNA2007100604961 A CN A2007100604961A CN 200710060496 A CN200710060496 A CN 200710060496A CN 101468856 A CN101468856 A CN 101468856A
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- China
- Prior art keywords
- seawater
- water
- reverse osmosis
- solid
- sodium ion
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- 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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- 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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to a seawater desalting treatment method. The method comprises the following treating steps: 1, a water pump is used to send seawater to a filter tank; 2, the filter tank is used to filter impurities of the seawater; 3, a sodium ion collector is used to carry out high-frequency electric shock on the filtered seawater in order to gradually agglomerate sodium ions of the seawater to micron-level solid particles; 4, a high-pressure pump is used to beat the seawater containing the solid particles to a solid-liquid separator; and 5, the seawater containing the sodium ions intercepted by a reverse osmosis semipermeable membrane is used in the solid-liquid separator; and water flowing out from the reverse osmosis semipermeable membrane is the treated freshwater. The treatment method is simple and feasible and can well solve the problems of industrial water for islands, offshore oil platforms, vessels and enterprises in coastal cities and towns and domestic water of residents.
Description
Technical field
The present invention relates to a kind of water treatment method, especially a kind of process for desalinating seawater.
Background technology
Along with market economy increasing development, especially China successfully in the accession to the WTO since, foreign trade becomes supports indispensable main pillar of Economic development.In foreign trade, sea-freight has become one of of paramount importance means in the contemporary transportation of goods.In the sea-freight process,, influence crewman's quality of life even injure the existence problem so the oceangoing vessel safe drinking water has become because seawater can not directly be drunk as tap water.Mainly still drink the tap water of prior storage on the present seagoing vessel, occupied the finite spaces a large amount of on the boats and ships, brought inconvenience to navigation.In addition, China shoreline is long and narrow, island are numerous, frontier defense fleet and frontier guard who is stationed on island and the permanent residents on the offshore islands, and their fresh water supply becomes the key factor of restriction existence.In addition, also need quite a few fresh water for staff's life such as the same oil production industry of the drilling unit of long-term offshore operation.For now, modes such as the most of dependence of these fresh water air transport are supplied with by the inland, so not only brought economic pressures, and outside supply are untimely and supply is limited, are difficult to guarantee the water demand of these special populations.
Therefore, press for a kind of seawater resources that can utilize whenever and wherever possible and carry out the process for desalinating seawater that sea water desaltination is handled.That existing method for desalting seawater ubiquity is handled is complicated, cost is high, and problem such as processing efficiency is low.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of process for desalinating seawater that a kind of treatment process is simple, cost is low and processing efficiency is high is provided.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of process for desalinating seawater is characterized in that: treatment step is as follows:
(1). use water pump that seawater is delivered in the hay tank;
(2). use the impurity in the hay tank filtering sea;
(3). use the sodium ion collector that the seawater after filtering is carried out the high frequency electric shock, make the sodium ion in the seawater be condensed into micron-sized solid particulate gradually;
(4). use high-pressure pump that these seawater that contain solid particulate are driven in the solid-liquid separating machine;
(5). in solid-liquid separating machine, use the salt solution that contains sodium ion of reverse osmosis semi-permeable membranes interception, be fresh water after the processing from the effusive water of reverse osmosis semi-permeable membranes.
And described reverse osmosis semi-permeable membranes is laid with filter pore, the size of this filter pore and the sizableness of water molecules.
Advantage of the present invention and beneficial effect are:
1. this process for desalinating seawater is that employing is small-sized a kind of process for desalinating seawater of main membrane module with reverse osmosis membrane, it utilizes the selection perviousness of reverse osmosis membrane, under the effect of pressure, make water molecules can waltz through reverse osmosis membrane, salinity and other impurity then are trapped within dense water one side, thereby reach the purpose of sea water desaltination.Treatment process of the present invention is simple, cost is low and processing efficiency is high, can satisfy the standard of people's domestic water fully.
2. this process for desalinating seawater is simple, can solve island, offshore oil platform, naval vessel and coast town enterprise process water and domestic water for residents problem well.
Embodiment
The invention will be further described below by specific embodiment.
Realize that this process for desalinating seawater need use the system that is made of water pump, hay tank, sodium ion collector, high-pressure pump, air compressor machine and solid-liquid separating machine, the key of present method is again that the employing reverse osmosis membrane is main membrane module in the solid-liquid separating machine, employed reverse osmosis semi-permeable membranes is laid with filter pore, the size of this filter pore and the sizableness of water molecules.Treatment step of the present invention is as follows:
(1). use water pump that seawater is delivered in the hay tank;
(2). use the impurity in the hay tank filtering sea, and the seawater after will filtering is sent in the sodium ion collector;
(3). use the sodium ion collector that the seawater after filtering is carried out the high frequency electric shock, make the sodium ion in the seawater be condensed into micron-sized solid particulate gradually;
(4). use high-pressure pump that these seawater that contain solid particulate are driven in the solid-liquid separating machine;
(5). in solid-liquid separating machine, use the salt solution that contains sodium ion of reverse osmosis semi-permeable membranes interception, the sodium ion of cohesion is blocked, the fresh water of its formation then flows out by the filter pore on the reverse osmosis semi-permeable membranes, and flow out as tap water from water outlet and to use, and can be flowed out through the brine outlet of solid-liquid separating machine below by the salt solution that contains sodium ion that the reverse osmosis semi-permeable membranes is tackled.
Embodiment of the present invention is illustrative; rather than it is determinate; therefore the present invention is not limited to the embodiment described in the embodiment, and every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention belong to the scope of protection of the invention equally.
Claims (2)
1. process for desalinating seawater, it is characterized in that: treatment step is as follows:
(1). use water pump that seawater is delivered in the hay tank;
(2). use the impurity in the hay tank filtering sea;
(3). use the sodium ion collector that the seawater after filtering is carried out the high frequency electric shock, make the sodium ion in the seawater be condensed into micron-sized solid particulate gradually;
(4). use high-pressure pump that these seawater that contain solid particulate are driven in the solid-liquid separating machine;
(5). in solid-liquid separating machine, use the salt solution that contains sodium ion of reverse osmosis semi-permeable membranes interception, be fresh water after the processing from the effusive water of reverse osmosis semi-permeable membranes.
2. a kind of process for desalinating seawater according to claim 1 is characterized in that: described reverse osmosis semi-permeable membranes is laid with filter pore, the size of this filter pore and the sizableness of water molecules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100604961A CN101468856A (en) | 2007-12-26 | 2007-12-26 | Seawater desalination processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100604961A CN101468856A (en) | 2007-12-26 | 2007-12-26 | Seawater desalination processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101468856A true CN101468856A (en) | 2009-07-01 |
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ID=40826704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100604961A Pending CN101468856A (en) | 2007-12-26 | 2007-12-26 | Seawater desalination processing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101468856A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877777A (en) * | 2014-04-03 | 2014-06-25 | 莆田市海帝食品有限公司 | Vertical shaft device for filtering seawater |
| CN108128851A (en) * | 2018-01-26 | 2018-06-08 | 重庆三峡学院 | A kind of method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt |
| CN109574350A (en) * | 2018-11-29 | 2019-04-05 | 王燕瑜 | A kind of solar energy separate heat pipe desalination plant |
| US11273406B2 (en) | 2012-02-13 | 2022-03-15 | Oy Langh Tech Ab | Method for treating impurities contained in exhaust gases of ships, ship with exhaust gas scrubber, and purification unit |
-
2007
- 2007-12-26 CN CNA2007100604961A patent/CN101468856A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11273406B2 (en) | 2012-02-13 | 2022-03-15 | Oy Langh Tech Ab | Method for treating impurities contained in exhaust gases of ships, ship with exhaust gas scrubber, and purification unit |
| CN103877777A (en) * | 2014-04-03 | 2014-06-25 | 莆田市海帝食品有限公司 | Vertical shaft device for filtering seawater |
| CN103877777B (en) * | 2014-04-03 | 2016-05-11 | 莆田市海帝食品有限公司 | A kind of vertical device for filtering sea |
| CN108128851A (en) * | 2018-01-26 | 2018-06-08 | 重庆三峡学院 | A kind of method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt |
| CN108128851B (en) * | 2018-01-26 | 2024-01-26 | 重庆三峡学院 | Method for recycling sodium chloride solution in high-salt preserved szechuan pickle wastewater |
| CN109574350A (en) * | 2018-11-29 | 2019-04-05 | 王燕瑜 | A kind of solar energy separate heat pipe desalination plant |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090701 |