CN205442901U - Brackish water desalination treatment facility - Google Patents
Brackish water desalination treatment facility Download PDFInfo
- Publication number
- CN205442901U CN205442901U CN201521105771.3U CN201521105771U CN205442901U CN 205442901 U CN205442901 U CN 205442901U CN 201521105771 U CN201521105771 U CN 201521105771U CN 205442901 U CN205442901 U CN 205442901U
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- CN
- China
- Prior art keywords
- water tank
- capacitive deionization
- processing equipment
- deionization module
- brackish water
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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
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
-
- 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
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model provides a brackish water desalination treatment facility, including raw materials water tank, first force (forcing) pump, sand filter, ultra -fine filter, DC power supply, one -level electric capacity deionization module, middle water tank, second force (forcing) pump, second grade electric capacity deionization module and product water tank, raw materials water tank, first force (forcing) pump, sand filter, ultra -fine filter, one -level electric capacity deionization module, middle water tank, second force (forcing) pump, second grade electric capacity deionization module and product water tank connect gradually, DC power supply is connected respectively to one -level electric capacity deionization module and second grade electric capacity deionization module, be equipped with the drain in ultra -fine filter, one -level electric capacity deionization module and the second grade electric capacity deionization module respectively, drain in the second grade electric capacity deionization module passes through the pipeline and is connected with the raw materials water tank. Brackish water desalination treatment facility improved desalted water's utilization ratio, reduced brackish water desalination's cost.
Description
Technical field
This utility model belongs to technique for desalting salt water field, especially relates to a kind of brackish water desalination processing equipment.
Background technology
Water resource critical shortage has become restriction China water-deficient area, the particularly key factor of the Northwest's economic development.As a example by the Northwest, its land area accounts for the 1/3 of the whole nation, but unit are gross amount of water resources is only the 1/5 of national average value, and substantial amounts of water is senior middle school's salinity bitter, it is impossible to directly drink.And membrane separation technique is because of features such as it are efficient, pollution-free, strong adaptability, technique are simple, easy to maintenance, it has also become the main flow of brackish water desalination, in China's water resource sustainable development strategy, play the most important effect.
Generally total dissolved solidss in water (TDS) content is called bitter at the natural water of 1000mg/L～10000mg/L.Existing embrane method technique of desalinating saline water mainly includes that reverse osmosis and nanofiltration are pressure-driven, along with the TDS content of bitter is the highest, the operation pressure desalinating bitter is the biggest, inevitable requirement uses high voltage bearing container and tubing, in order to energy-conservation, also needing to be equipped with energy recycle device, its result is to improve the investment of equipment entirety；Secondly, the corrosivity that the high salinity of bitter is had, pipe material there is is rigors, needs to use special corrosion resistant material, the investment of tubing is the highest accounts for about the 30% of desalination system investment；Finally, in terms of water use efficiency, the water use efficiency of reverse osmosis and Nanofiltering membrane is typically only 45%～50%, and the dense water yield of discharge is very big, and above-mentioned factor causes the investment of bitter salt water desalting equipment and to make water relatively costly.Researching and developing new, low cost technique of desalinating saline water, break through prior art bottleneck, reduce the requirement to pipe material of the brackish water desalination system, reduce ton water power consumption, the water use efficiency improving desalination becomes development trend and urgent needs.
Summary of the invention
In view of this, this utility model is directed to a kind of brackish water desalination processing equipment, to improve the utilization rate of desalination water, reduces the cost of brackish water desalination.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
Relative to prior art, a kind of brackish water desalination processing equipment described in the utility model has the advantage that
A kind of brackish water desalination processing equipment, including raw material water tank, first force (forcing) pump, sand filter, ultrafilter, DC source, one-level capacitive deionization module, intermediate water tank, second force (forcing) pump, two grades of capacitive deionization modules and product water tank, described raw material water tank, first force (forcing) pump, sand filter, ultrafilter, one-level capacitive deionization module, intermediate water tank, second force (forcing) pump, two grades of capacitive deionization modules and product water tank are sequentially connected with, described one-level capacitive deionization module and two grades of capacitive deionization modules connect DC source respectively, described ultrafilter, it is respectively equipped with sewage draining exit in one-level capacitive deionization module and two grades of capacitive deionization modules, sewage draining exit in described two grades of capacitive deionization modules is connected with raw material water tank by pipeline.
Further, described pipeline is PVC plastic material.
Further, described one-level capacitive deionization module is made up of two relative positive and negative colelctor electrodes, porous carbon, ion barrier and screen cloth repeated arrangement respectively with two grades of capacitive deionization modules, the porous carbon of described positive colelctor electrode is provided with anion barrier, and the porous carbon of negative electrode is provided with cation barrier.
Further, the thickness of described screen cloth is 0.1mm-1mm.
Further, the material of described colelctor electrode is titanium or graphite.
Further, described porous carbon includes graphite, activated carbon, activated carbon fiber, carbon aerogels, CNT and Graphene.
Further, described ion barrier is polyethylene, polypropylene and the copolymer of active group three, and the thickness of described ion barrier is 15nm-50nm, and exchange capacity is 1.2mol/kg-2.2mol/kg, and surface resistance is 3 Ω cm2-5Ω·cm2, select transmitance ＞ 90%.
Further, described screen cloth is polypropylene screen cloth, terylene or nonwoven polypropylene fabric.
Relative to prior art, a kind of brackish water desalination processing equipment described in the utility model has the advantage that
This equipment described in the utility model operation voltage is low, the natural green energy resource such as available solar energy, wind energy, tide energy；Operating hydraulic pressure is low, it is not necessary to the metal of high-voltage-resistant anti-corrosion and plant equipment, uses cheap plastic conduit can meet requirement, it is not necessary to anticorrosion, reduces equipment cost；Loose to the pre-processing requirements of bitter；This kind of equipment desalination processes the utilization rate of water and is significantly higher than reverse osmosis and Nanofiltering membrane, and the reduction of system pressure also eliminates the reverse osmosis of costliness and the cost of membrane filter technique condensed water energy recycle device received；Its device structure is simple, and easy and simple to handle, power consumption is low, is significantly reduced maintenance.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the brackish water desalination processing equipment overall structure schematic diagram described in this utility model embodiment；
Fig. 2 is the capacitive deionization module composition structural representation described in this utility model embodiment.
Description of reference numerals:
1-raw material water tank；2-the first force (forcing) pump；3-sand filter；4-ultrafilter；5-DC source；6-one-level capacitive deionization module；7-intermediate water tank；8-the second force (forcing) pump；Bis-grades of capacitive deionization modules of 9-；10-product water tank；11-pipeline；21-colelctor electrode；22-porous carbon；23-ion barrier；24-screen cloth.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more this feature.In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood by concrete condition.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
nullAs shown in Figure 1，Salinity is that the bitter of 1000mg/L～10000mg/L is introduced into raw material water tank 1，It is delivered to sand filter 3 and ultrafilter 4 by the first force (forcing) pump 2，Clean water enters one-level capacitive deionization module 6 desalination，0.8V～1.2V DC voltage is provided by DC source 5，Switching by valve group，Salinity is that the water of 200mg/L～4000mg/L enters intermediate water tank 7，The dense water of high concentration during reverse charge desorption then emits，The desalination of two grades of capacitive deionization modules 9 is delivered into by the second force (forcing) pump 8，0.8V～1.0V DC voltage is provided by DC source 5，Switching by valve group，The salinity desalted water less than 400mg/L enters product water tank 10，Reach the standard of country's Drinking Water total dissolved solidss content，The dense water of high concentration during two grades of capacitive deionization module 9 reverse charge desorptions then reenters raw material water tank 1 and recycles.
nullCapacitive deionization module in this device is exactly at porous charcoal 22 electrode surface from conventional different places，Add a pair i.e. ion exchange membrane of ion barrier 23，Anion barrier 23 is covered in positive collector body 21 porous charcoal 22，Negative colelctor electrode 21 porous charcoal 22 covers cation barrier 23，Screen cloth 24 plays two relative collector bodies 21 of separation、Porous charcoal 22、The effect of ion barrier 23，And form water stream channel，Turbulent extent can also be increased，The thickness of screen cloth 24，I.e. the moon of capacitive deionization module、The anode-cathode distance of anelectrode is 0.1mm～1mm，This reaches several mm with the anode-cathode distance of existing technology、Having of even more than 10mm is the most progressive，Die opening I is so that ion is short to the path of the electrode surface directional migration of oppositely charged，And current easily reach turbulent extent，Reduce the resistance of diffusion mobility.
When capacitive deionization module is desorbed at reverse charge, i.e. electrode applies backward voltage, and the collector body 21 in cation exchange membrane direction by negative change just, is formed with cation and repels, and absorption cation in porous charcoal 22 departs from and passes cation exchange membrane and returns in solution；The collector body 21 in anion exchange membrane direction is by just becoming negative, formed with anion and repel, absorption anion in porous charcoal 22 departs from and passes anion exchange membrane and returns in solution, these return to the sun in solution, anion, due to relative the moon, the stop of cation exchange membrane and cannot be adsorbed onto in the porous charcoal 22 on opposite, can only stay in the solution, at this moment flow out the ion concentration in solution and improve formation concentration to heavens, capacitive deionization module is cleaned and is regenerated, it is ready for absorption next time, the maximum benefit of the application of ion barrier 23 is exactly enable that capacitive deionization module reverse charge regenerates when being desorbed more thorough, decrease artificial acid to greatest extent, the work of alkali cleaning module, be conducive to water conservation and environment.
Embodiment 1:
The raw material bitter using this utility model process salinity to be 2000mg/L processes, and the effect of process is as follows:
Raw material bitter salinity 2000mg/L, pH about 6.8, colourity 352PCU, sodium ion 625mg/L, hardness 200mg/L (in terms of CaCO3), chloride ion 1125mg/L, sulfate 190mg/L；
Running desalination continuously through the single-stage nearly 300h of capacitive deionization module, the salinity of gained desalted water is 200mg/L, pH about 7.4, colourity 12PCU, and the total energy consumption of a complete set of technique is 0.8kWh/m3, and Water Sproading rate is then 65%.
Embodiment 2:
Using the raw material bitter that process salinity is 9000mg/L that the utility model proposes to process, the effect of process is as follows:
Raw material bitter salinity 9000mg/L, pH about 7.0, colourity 280PCU, sodium ion 2300mg/L, hardness 1000mg/L (in terms of CaCO3), chloride ion 4400mg/L, sulfate 700mg/L；
Running desalination continuously through the two-stage nearly 200h of capacitive deionization module, the salinity of gained desalted water is 350mg/L, pH about 7.2, colourity 10PCU.The total energy consumption of a complete set of technique is 2.0kWh/m3, and Water Sproading rate is then 60%.
Therefore, use the method and apparatus that brackish water desalination of the present utility model processes, process the bitter that salinity is 1000mg/L～10000mg/L, can directly produce the salinity desalted water less than 400mg/L, reach the standard of country's drinking water.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (8)
1. a brackish water desalination processing equipment, it is characterized in that: include raw material water tank, first force (forcing) pump, sand filter, ultrafilter, DC source, one-level capacitive deionization module, intermediate water tank, second force (forcing) pump, two grades of capacitive deionization modules and product water tank, described raw material water tank, first force (forcing) pump, sand filter, ultrafilter, one-level capacitive deionization module, intermediate water tank, second force (forcing) pump, two grades of capacitive deionization modules and product water tank are sequentially connected with, described one-level capacitive deionization module and two grades of capacitive deionization modules connect DC source respectively, described ultrafilter, it is respectively equipped with sewage draining exit in one-level capacitive deionization module and two grades of capacitive deionization modules, sewage draining exit in described two grades of capacitive deionization modules is connected with raw material water tank by pipeline.
A kind of brackish water desalination processing equipment the most according to claim 1, it is characterized in that: described one-level capacitive deionization module is made up of two relative positive and negative colelctor electrodes, porous carbon, ion barrier and screen cloth repeated arrangement respectively with two grades of capacitive deionization modules, the porous carbon of described positive colelctor electrode is provided with anion barrier, and the porous carbon of negative electrode is provided with cation barrier.
A kind of brackish water desalination processing equipment the most according to claim 2, it is characterised in that: the thickness of described screen cloth is 0.1mm-1mm.
A kind of brackish water desalination processing equipment the most according to claim 2, it is characterised in that: the material of described colelctor electrode is titanium or graphite.
A kind of brackish water desalination processing equipment the most according to claim 2, it is characterised in that: described porous carbon includes graphite, activated carbon, activated carbon fiber, carbon aerogels, CNT and Graphene.
A kind of brackish water desalination processing equipment the most according to claim 2, it is characterized in that: described ion barrier is polyethylene, polypropylene and the copolymer of active group three, the thickness of described ion barrier is 15nm-50nm, exchange capacity is 1.2mol/kg-2.2mol/kg, and surface resistance is 3 Ω cm2-5Ω·cm2, select transmitance ＞ 90%.
A kind of brackish water desalination processing equipment the most according to claim 2, it is characterised in that: described screen cloth is polypropylene screen cloth, terylene or nonwoven polypropylene fabric.
A kind of brackish water desalination processing equipment the most according to claim 1, it is characterised in that: described pipeline is PVC plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105771.3U CN205442901U (en) | 2015-12-24 | 2015-12-24 | Brackish water desalination treatment facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105771.3U CN205442901U (en) | 2015-12-24 | 2015-12-24 | Brackish water desalination treatment facility |
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| Publication Number | Publication Date |
|---|---|
| CN205442901U true CN205442901U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521105771.3U Expired - Fee Related CN205442901U (en) | 2015-12-24 | 2015-12-24 | Brackish water desalination treatment facility |
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| CN (1) | CN205442901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865837A (en) * | 2017-03-01 | 2017-06-20 | 河海大学 | A kind of method of utilization milipore filter and membrane capacitance deionization group technology treatment brackish-water lake storehouse water |
-
2015
- 2015-12-24 CN CN201521105771.3U patent/CN205442901U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865837A (en) * | 2017-03-01 | 2017-06-20 | 河海大学 | A kind of method of utilization milipore filter and membrane capacitance deionization group technology treatment brackish-water lake storehouse water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20161224 |