CN206278964U - Sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration - Google Patents
Sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration Download PDFInfo
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- CN206278964U CN206278964U CN201621096147.6U CN201621096147U CN206278964U CN 206278964 U CN206278964 U CN 206278964U CN 201621096147 U CN201621096147 U CN 201621096147U CN 206278964 U CN206278964 U CN 206278964U
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A20/124—Water desalination
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Abstract
The utility model is related to desalinization processing technology field, and in particular to desalination process and device are combined in a kind of electrodialysis counter-infiltration.Including：Raw water box, more medium filter, first cartridge filter, second cartridge filter, ultrafiltration water tank, ultrafiltration apparatus, intermediate pool, concentrated water case, fresh-water tank, electrodialysis plant, reverse osmosis unit and product water tank, the raw water box, more medium filter, first cartridge filter, second cartridge filter, ultrafiltration water tank, ultrafiltration apparatus pass sequentially through pipeline connection, ultrafiltration apparatus are connected with intermediate pool, intermediate pool is connected with concentrated water case by pipeline and pump, concentrated water case is bi-directionally connected with electrodialysis plant, electrodialysis plant and fresh-water tank are bi-directionally connected, fresh-water tank is connected with reverse osmosis unit by pipeline, reverse osmosis unit is connected by pipeline respectively with product water tank and intermediate pool.The utility model can be reducingd the construction costs and operating cost by electrodialysis reverse osmosis seawater desalting group technology.
Description
Technical field
The utility model is related to desalinization processing technology field, and in particular to a kind of electrodialysis counter-infiltration combination seawater is light
Chemical industry skill and device.
Background technology
China is the country that freshwater resources lack, and population constantly increases, and urbanization process is accelerated, and industrial development is rapid, right
The demand of water just increases with surprising rapidity, and water pollution makes to be available for fresh water largely to reduce.Meanwhile, climate change is increased
The frequency and intensity that arid, flood occur, also exacerbate water resources problems.Therefore, used in Devoting Major Efforts To Developing routine water resource, water saving
Water, while recycle recycled water, actively push forward the application of the unconventional water resources such as seawater and brackish water, transformation water money
Theory, mode that source utilizes, improve water resource utilization efficiency, have for alleviation China the contradiction of supply and demand for the water resource highly important
Meaning.《The General Office of the State Council is on accelerating development the opinion of desalinization industry》(Office of the State Council sends out (2012) No. 13), proposes：" drum
Encourage seawater development desalination new technology, enhance the capability of independent innovation and ability to provide the auxiliary items ", " actively research and development desalinization water intaking, pre-
The engineering technology and complexes of each links such as treatment, desalination water post processing, strong brine comprehensive utilization and discharge disposal ".
State Council prints and distributes on April 2nd, 2015《Water prevention and cure of pollution action plan》(" ten, water ") is explicitly emphasized that, to strengthen
The foresight technologies such as tackling key problem research and development desalinization, promote seawater utilization.
Desalinization is the technology and process that fresh water is obtained from seawater, is by physics, the chemically or physically side such as chemistry
What method was realized.Main path has two：One is that water is taken out from seawater, mainly there is the way of distillation, hyperfiltration, freezing method, hydration
Thing method and solvent extraction etc.；Two is that salt is taken out from seawater, mainly have ion-exchange, electroosmose process, capacitive adsorption method and
Pressure oozes method etc..But up to the present, only hyperfiltration, the way of distillation and the electroosmose process of practical application.
The way of distillation is including multistage flash vaporization, multiple-effect distillation and both vapor compression method etc..Wherein multistage flash vaporization and multiple-effect steam
The method of evaporating is two kinds of more advanced hot methods, is also a large amount of in the world utilization.But the way of distillation is present, and dependence is strong, floor space
Greatly, high energy consumption, operating cost be of a relatively high, operational management is also relative complex.
Hyperfiltration is to be applied more than the external pressure of penetration of sea water pressure in seawater side, makes pure water inverse osmosis in seawater extremely
Desalination method in fresh water.Effluent quality is good, energy consumption is low, floor space is small, but hyperfiltration desalinization, there is operation pressure
Power is big, pre-processing requirements are the shortcomings of extremely strict, film needs periodic cleaning to change.
Electrodialysis is the selection using anions and canons exchange membrane to the anions and canons in solution with direct current as motive force
Permeability, makes the ion in a water body that the material separation process of another water body is moved to by film.Electroosmose process seawater is light
The shortcomings of changing that operating pressure is low, the low feature of pre-processing requirements, but there is also high energy consumption simultaneously.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of electrodialysis counter-infiltration combination desalinization dress
Put, combined the unit by electrodialysis reverse osmosis seawater desalting, can both reduce operation energy consumption, salt manufacturing cost, can avoid again dense
Pollution of the water to seawater ecological environment, can effectively solve the water shortage situations such as China inland water-deficient area, ocean ship, island.
To achieve the above object, it is of the present utility model to combine sea water desalinating unit, bag there is provided a kind of electrodialysis counter-infiltration
Include：Raw water box, more medium filter, the first cartridge filter, the second cartridge filter, ultrafiltration water tank, ultrafiltration apparatus, middle water
Pond, concentrated water case, fresh-water tank, electrodialysis plant, reverse osmosis unit and product water tank, the raw water box, more medium filter, first protect
Peace filter, the second cartridge filter, ultrafiltration water tank, ultrafiltration apparatus pass sequentially through pipeline connection, ultrafiltration apparatus and intermediate pool
It is connected, intermediate pool is connected with concentrated water case by pipeline and pump, concentrated water case is bi-directionally connected with electrodialysis plant, electrodialysis dress
Put and be bi-directionally connected with fresh-water tank, fresh-water tank is connected with reverse osmosis unit by pipeline, reverse osmosis unit with produce water tank and centre
Pond is connected by pipeline respectively.
Further, described more medium filter uses active carbon filter and quartz filter.
Further, first cartridge filter.
Further, described ultrafiltration apparatus use hollow fiber film assembly.
Further, described electrodialysis plant uses desalinization membrane module.
Further, described reverse osmosis unit uses brackish water desalination membrane module.
Further, first cartridge filter is 5um cartridge filters, and second cartridge filter is protected for 1um
Peace filter.
Prior art is different from, above-mentioned technical proposal has the advantage that as follows：
1st, be coupled for electroosmose process and hyperfiltration by the utility model, and pretreatment system and electrodialysis plant are to counter-infiltration
Device does early stage pretreatment, it is ensured that reverse osmosis unit influent quality is in splendid state, light relative to hyperfiltration seawater is only used
For change, the requirement of its pretreatment system is also without so strict；Electrodialysis plant by seawater from 3.5% desalination to 1% after again
Reverse osmosis unit operating pressure can be reduced into reverse osmosis unit, ensure effluent quality, reduces cost；Reverse osmosis concentrated water is because of it
Concentration is low, can be returned directly to electrodialysis concentrated water case, as supplement water；Electrodialysis concentrated water can then be concentrated into 15%, then steam again
Hair crystallization is made purity Nacl high, has not only ensured that electrodialysis concentrated water Marine Pollution ecological environment and did not obtained certain economic imitate
Benefit.
2nd, electrodialysis reverse osmosis seawater desalting of the present utility model combination unit, can both reduce operation energy consumption, salt manufacturing into
This, can be avoided pollution of the concentrated water to seawater ecological environment again, can effectively solve China inland water-deficient area, ocean ship, island
The water shortage situation such as small island.
Brief description of the drawings
The structural representation of Fig. 1 the utility model embodiments.
Description of reference numerals：
1st, more medium filter, 2,5um cartridge filters, 3,1um cartridge filters, 4, ultrafiltration apparatus, 5, intermediate pool,
6th, electrodialysis plant, 7, fresh-water tank, 8, reverse osmosis unit, 9, produce water tank, 10, concentrated water case, 11, ultrafiltration water tank, 12, raw water box.
Specific embodiment
To describe technology contents, structural feature, the objects and the effects of technical scheme in detail, below in conjunction with specific reality
Apply example and coordinate accompanying drawing to be explained in detail.
Fig. 1 is referred to, sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration of the present embodiment, including：It is raw water box 12, many
Medium filter 1,5um cartridge filters 2,1um cartridge filters 3, ultrafiltration water tank 11, ultrafiltration apparatus 4, intermediate pool 5, concentrated water
Case 10, fresh-water tank 7, electrodialysis plant 6, reverse osmosis unit 8 and product water tank 9, the raw water box 12, more medium filter 1,5um
Cartridge filter 2,1um cartridge filters 3, ultrafiltration water tank 11, ultrafiltration apparatus 4 pass sequentially through pipeline connection, and ultrafiltration apparatus 4 are with
Between pond 5 be connected, intermediate pool 5 is connected with concentrated water case 10 by pipeline and pump, and concentrated water case 10 is two-way with electrodialysis plant 6
Connection, electrodialysis plant 6 and fresh-water tank 7 are bi-directionally connected, and fresh-water tank 7 is connected with reverse osmosis unit 8 by pipeline, counter-infiltration dress
8 are put to be connected by pipeline respectively with product water tank 9 and intermediate pool 5.
In the present embodiment, described more medium filter 1 uses active carbon filter and quartz filter.
In the present embodiment, the 5um cartridge filters use 20 cun of PP cotton filters.
In the present embodiment, described ultrafiltration apparatus use hollow fiber film assembly.
In the present embodiment, described electrodialysis plant uses desalinization membrane module.
In the present embodiment, described reverse osmosis unit uses brackish water desalination membrane module.
Desalting process is carried out using the electrodialysis counter-infiltration combination sea water desalinating unit of the present embodiment, its technique includes
Following steps：
1) seawater sequentially passes through more medium filter and carries out coarse filtration, silt particle, suspension, colloid and the algae gone in water removal
Biology, reduces the mechanical damage to membrane module and pollution, and the water quality index after coarse filtration reaches next stage treatment standard,
2) through step 1) seawater after coarse filtration sequentially enters 5 μm of cartridge filters and 1 μm of cartridge filter is filtered
Treatment, goes the trace suspension particle of remaining, colloid and microorganism in water removal, and the water quality index after filtration treatment is reached at next stage
Reason standard,
3) by step 2) seawater after filtration treatment enters ultrafiltration water tank and ultrafiltration apparatus, obtains ultrafiltration water, described super
The water quality index of drainage reaches next stage treatment standard water outlet SS=4：
4) by step 3) ultrafiltration apparatus treatment after ultrafiltration water be stored into concentrated water case, fresh water respectively after intermediate pool
The pole water tank of case and reverse osmosis unit,
5) step 4) in the water of concentrated water case carry out desalination and concentration into electrodialysis, obtain electrodialysis concentrated water and electrodialysis
Fresh water, the electrodialysis concentrate recirculation is connected with intermediate pool, and the electrodialysis fresh water is processed into reverse osmosis unit, the step
It is rapid 5) in, electrodialysis plant use monovalent ion permselective membrane,
6) reverse osmosis unit obtains reverse osmosis freshwater and reverse osmosis concentrated water, instead by electrodialysis fresh water by counter osmosis
Infiltration fresh water is back to intermediate pool, and reverse osmosis concentrated water enters product water tank 9, and reverse osmosis unit selects to pass through using monovalent ion
Film concentrates the chlorion in seawater and sodium ion monovalent ion, so as to obtain condensed water as purified salt or salt chemical engineering raw material,
And reduce the salt content of light salt brine.
Be coupled for embrane method salt producing craft and Membrane seawater desalination technology by of the present utility model technique, can both reduce system
Salt cost, it is also possible to reduce the operation power consumption of seawater desalination system, reduces water producing cost, while also effectively prevent strong brine pair
The problem of environmental pollution of surrounding sea areas, is to kill two birds with one stone.Have very in terms of fresh water and high-quality salt is extracted using seawater
Good application value.
It is below specific experiment data of the present utility model, so that the beneficial effects of the utility model are verified, final products
Water water standard is pressed《GB5749-2006 standards for drinking water quality》
Scale of the project
Sea-water-desalination water producing amount：100 ton days
Ultrafiltration apparatus design parameter
Device inflow：174 ton days
The device rate of recovery：90%
Device quantity：200 ton day × 1 set
Desalinization electrodialysis plant design parameter
Device inflow：157 ton days
Device aquifer yield：133 ton days
The device rate of recovery：91%
Electrodialysis number of units：6
Seawater desalination reverse osmosis device design parameter
Device inflow：133 ton days
Device aquifer yield：100 ton days
The device rate of recovery：75%
Membrane tube number：6
Salt rejection rate：>95%
Producing water water quality：《GB5749-2006 standards for drinking water quality》
In the utility model above-mentioned technical proposal, by counter-infiltration and the integrated application of electrodialysis so that script electrodialysis is concentrated
The room brackish water to be discharged generates reverse osmosis freshwater by the effect of counter-infiltration again, then allows reverse osmosis freshwater to be passed through electrodialysis again
The enriched chamber of device is circulated utilization.Like this, water consume is not only reduced, and can after reverse osmosis freshwater is passed through enriched chamber
The salinity of the enriched chamber is reduced, is conducive to the zwitterion in diluting compartment to migrate into enriched chamber and be removed, this is just carried
The salt rejection rate of the organic solution high.Compared to ion-exchange desalination, a large amount of soda acids are not only eliminated, it is thus also avoided that organic
The discharge of saliferous organic wastewater high in thing solution desalting process.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or terminal device including a series of key elements not only include those
Key element, but also other key elements including being not expressly set out, or also include being this process, method, article or end
The intrinsic key element of end equipment.In the absence of more restrictions, limited by sentence " including ... " or " including ... "
Key element, it is not excluded that also there is other key element in the process including the key element, method, article or terminal device.This
Outward, herein, " it is more than ", " being less than ", " exceeding " etc. are interpreted as not including this number；" more than ", " below ", " within " etc. understand
It is to include this number.
Although being described to the various embodiments described above, those skilled in the art once know basic wound
The property made concept, then can make other change and modification to these embodiments, so the foregoing is only reality of the present utility model
Example is applied, scope of patent protection of the present utility model, every utilization the utility model specification and accompanying drawing content is not thereby limited
The equivalent structure or equivalent flow conversion made, or other related technical fields are directly or indirectly used in, similarly include
Within scope of patent protection of the present utility model.
Claims (7)
1. sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration, it is characterised in that including：Raw water box, more medium filter,
One cartridge filter, the second cartridge filter, ultrafiltration water tank, ultrafiltration apparatus, intermediate pool, concentrated water case, fresh-water tank, electrodialysis dress
Put, reverse osmosis unit and produce water tank, the raw water box, more medium filter, the first cartridge filter, the second cartridge filter,
Ultrafiltration water tank, ultrafiltration apparatus pass sequentially through pipeline connection, and ultrafiltration apparatus are connected with intermediate pool, and intermediate pool is led to concentrated water case
Piping and pump are connected, and concentrated water case is bi-directionally connected with electrodialysis plant, and electrodialysis plant and fresh-water tank are bi-directionally connected, fresh-water tank
It is connected by pipeline with reverse osmosis unit, reverse osmosis unit is connected by pipeline respectively with product water tank and intermediate pool.
2. sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration according to claim 1, it is characterised in that described is more
Medium filter uses active carbon filter and quartz filter.
3. sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration according to claim 1, it is characterised in that described first
Cartridge filter uses 20 cun of PP cotton filters.
4. sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration according to claim 1, it is characterised in that described is super
Filter device uses hollow fiber film assembly.
5. sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration according to claim 1, it is characterised in that described electricity
Electrodialysis apparatus use desalinization membrane module.
6. sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration according to claim 1, it is characterised in that described is anti-
Permeability apparatus uses brackish water desalination membrane module.
7. sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration according to claim 1, it is characterised in that described first
Cartridge filter is 5um cartridge filters, and second cartridge filter is 1um cartridge filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621096147.6U CN206278964U (en) | 2016-09-30 | 2016-09-30 | Sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621096147.6U CN206278964U (en) | 2016-09-30 | 2016-09-30 | Sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration |
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| Publication Number | Publication Date |
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| CN206278964U true CN206278964U (en) | 2017-06-27 |
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| CN201621096147.6U Active CN206278964U (en) | 2016-09-30 | 2016-09-30 | Sea water desalinating unit is combined in a kind of electrodialysis counter-infiltration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202021102883U1 (en) | 2021-05-27 | 2021-07-13 | Rüdiger Schloo | Seawater desalination or deionization of water on an industrial scale using pipeline systems by means of electricity and / or magnetic fields |
| US11485660B1 (en) | 2022-04-19 | 2022-11-01 | King Fahd University Of Petroleum And Minerals | System and method for desalination |
-
2016
- 2016-09-30 CN CN201621096147.6U patent/CN206278964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202021102883U1 (en) | 2021-05-27 | 2021-07-13 | Rüdiger Schloo | Seawater desalination or deionization of water on an industrial scale using pipeline systems by means of electricity and / or magnetic fields |
| US11485660B1 (en) | 2022-04-19 | 2022-11-01 | King Fahd University Of Petroleum And Minerals | System and method for desalination |
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