CN106957119A - Counter-infiltration electrodialytic desalination technique - Google Patents
Counter-infiltration electrodialytic desalination technique Download PDFInfo
- Publication number
- CN106957119A CN106957119A CN201610014240.6A CN201610014240A CN106957119A CN 106957119 A CN106957119 A CN 106957119A CN 201610014240 A CN201610014240 A CN 201610014240A CN 106957119 A CN106957119 A CN 106957119A
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- China
- Prior art keywords
- water
- reverse osmosis
- infiltration
- counter
- water tank
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- 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
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A kind of counter-infiltration electrodialytic desalination technique, after seawater is pre-processed according to different water quality situations, with water pump pressurization feeding reverse osmosis unit.The water outlet of reverse osmosis unit is collected with intermediate water tank.Then by the water of intermediate water tank with being pumped into electrodialysis plant.The water outlet of electrodialysis plant reaches use requirement, is collected in terminal water tank, then delivers to field of employment by water pump.
Description
Technical field
The desalination process that desalination desalination obtains Drinking Water and industrial water, more particularly to reverse osmosis membrane technology and electrodialysis filtering technique are carried out to seawater the present invention relates to a kind of.
Background technology
Desalination desalination is carried out to seawater to obtain the technology of Drinking Water and industrial water, has been obtained for being widely applied.The used method of institute has seawater freezing process, electroosmose process, the way of distillation, hyperfiltration and ammonium carbonate ion-exchange etc., and the hyperfiltration of application reverse osmosis membrane is so that its equipment is simple, easy to maintain and most widely applied the characteristics of EM equipment module at present.Reverse osmosis membrane desalination process, is generally pre-processed to seawater first, removes suspended impurity, organic matter, colloidal substance, microorganism etc. in seawater, to reach the water quality requirement into counter-infiltration, and water then is carried out into pressurization feeding reverse osmosis unit.Because the salt content of seawater is higher, it usually needs the two steps ro of series connection is set, so that the water quality index of output reaches requirement.
Because the manufacturing process of reverse osmosis membrane is complicated, production cost costly, to a certain extent have impact on promoting the use of for reverse osmosis membrane desalinization.The present invention adds electrodialytic process using counter-infiltration, replaces two steps ro, the acquisition cost and operating cost of sea water desalinating unit can be substantially reduced, so as to be conducive to more being widely applied for desalination technology.
The content of the invention
Reverse osmosis membrane technology and electrodialytic technique are combined by the present invention, are substituted original two steps ro, are significantly reduced the acquisition cost and operating cost of sea water desalinating unit.
The technical scheme of the present invention solved the problems, such as is that after seawater is pre-processed according to different water quality situations, reverse osmosis unit is sent into water pump pressurization.The water outlet of reverse osmosis unit is collected with intermediate water tank.Then by the water of intermediate water tank with being pumped into electrodialysis plant.The water outlet of electrodialysis plant reaches use requirement, is collected in terminal water tank, then delivers to field of employment by water pump.
Preferably, seawater is pre-processed according to different water quality situations.
Preferably, sending into reverse osmosis unit with water pump pressurization.
Preferably, the water outlet of reverse osmosis unit is collected with intermediate water tank.
Preferably, by the water of intermediate water tank with being pumped into electrodialysis plant.
Preferably, the water outlet of electrodialysis plant is collected in terminal water tank.
The beneficial effects of the invention are as follows because electrodialysis plant compares reverse osmosis unit, acquisition cost and operating cost are significant lower, with counter-infiltration power-up dialysis substitution two steps ro, reduce the acquisition cost and operating cost of sea water desalinating unit.
The feature and advantage of the present invention will be described with reference to the drawings by embodiment.
Fig. 1 is the schematic diagram of this counter-infiltration electrodialytic desalination technique.
As Fig. 1 shows, seawater is pre-processed according to different water quality situations in pretreatment unit 1, then with the pressurization feeding reverse osmosis unit 3 of water pump 2.The water outlet intermediate water tank 4 of reverse osmosis unit 3 is collected.The water water pump 5 of intermediate water tank 4 is sent into electrodialysis plant 6.The water outlet of electrodialysis plant 6 is collected in terminal water tank 7, and field of employment is delivered to finally by water pump.
Above-described embodiment is the description of the invention, is not limitation of the invention.Any scheme to after simple transformation of the present invention belongs to protection scope of the present invention.
Claims (1)
1. a kind of counter-infiltration electrodialytic desalination technique, after seawater is pre-processed according to different water quality situations, with water pump pressurization feeding reverse osmosis unit, the water outlet of reverse osmosis unit is collected with intermediate water tank, it is characterized in that：By the water of intermediate water tank with being pumped into electrodialysis plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610014240.6A CN106957119A (en) | 2016-01-11 | 2016-01-11 | Counter-infiltration electrodialytic desalination technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610014240.6A CN106957119A (en) | 2016-01-11 | 2016-01-11 | Counter-infiltration electrodialytic desalination technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106957119A true CN106957119A (en) | 2017-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610014240.6A Pending CN106957119A (en) | 2016-01-11 | 2016-01-11 | Counter-infiltration electrodialytic desalination technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN106957119A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439675A (en) * | 2018-03-27 | 2018-08-24 | 华电电力科学研究院有限公司 | A kind of solar energy desalination utilization system and method |
| CN108793520A (en) * | 2018-07-09 | 2018-11-13 | 温州海德能环保设备科技有限公司 | A kind of multi-stage reverse osmosis deionized water processing unit |
| CN108862798A (en) * | 2018-07-27 | 2018-11-23 | 李二猛 | A kind of electrodialytic desalination method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010274202A (en) * | 2009-05-28 | 2010-12-09 | Mitsubishi Heavy Ind Ltd | Apparatus and method for manufacturing salt and fresh water at the same time |
| KR20110008348A (en) * | 2009-07-20 | 2011-01-27 | 황필기 | Methods and equipments for preparation of high enrichment lithium ion in seawater and it's concentrate using membrane separation and evaporation process |
| CN104649478A (en) * | 2013-11-20 | 2015-05-27 | 中国电力工程顾问集团公司 | Wind power isolated grid sea water desalination system |
-
2016
- 2016-01-11 CN CN201610014240.6A patent/CN106957119A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010274202A (en) * | 2009-05-28 | 2010-12-09 | Mitsubishi Heavy Ind Ltd | Apparatus and method for manufacturing salt and fresh water at the same time |
| KR20110008348A (en) * | 2009-07-20 | 2011-01-27 | 황필기 | Methods and equipments for preparation of high enrichment lithium ion in seawater and it's concentrate using membrane separation and evaporation process |
| CN104649478A (en) * | 2013-11-20 | 2015-05-27 | 中国电力工程顾问集团公司 | Wind power isolated grid sea water desalination system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439675A (en) * | 2018-03-27 | 2018-08-24 | 华电电力科学研究院有限公司 | A kind of solar energy desalination utilization system and method |
| CN108793520A (en) * | 2018-07-09 | 2018-11-13 | 温州海德能环保设备科技有限公司 | A kind of multi-stage reverse osmosis deionized water processing unit |
| CN108862798A (en) * | 2018-07-27 | 2018-11-23 | 李二猛 | A kind of electrodialytic desalination method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170718 |