CN108503096A - Bitter salt water desalting equipment and method for desalting brackish water - Google Patents
Bitter salt water desalting equipment and method for desalting brackish water Download PDFInfo
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- CN108503096A CN108503096A CN201810675619.0A CN201810675619A CN108503096A CN 108503096 A CN108503096 A CN 108503096A CN 201810675619 A CN201810675619 A CN 201810675619A CN 108503096 A CN108503096 A CN 108503096A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention provides a kind of bitter salt water desalting equipment and method for desalting brackish water, it is related to the technical field of water desalt processing, the bitter salt water desalting equipment includes raw water water inlet pipe, ion exchange pot, cistern, air dissolved pump, carbon dioxide dissolving and carbon-dioxide generator, raw water water inlet pipe is connected to the water inlet of ion exchange pot, the water outlet of ion exchange pot is connected to cistern, the liquid feeding end that cistern passes through piping connection to air dissolved pump, the outlet end of air dissolved pump is connected to the import of carbon dioxide dissolving, carbon-dioxide generator is connect with carbon dioxide dissolving, the outlet of carbon dioxide dissolving is connected to ion exchange pot, concentrated water discharge outlet is provided on ion exchange pot, the present invention solves in existing ion exchange desalinating process, it is a large amount of to use acid, the technical issues of alkali is endangered as resin regeneration liquid caused by environment.
Description
Technical field
The present invention relates to water desalt processing technical fields, more particularly, to a kind of bitter salt water desalting equipment and brackish water desalination
Method.
Background technology
The method of brackish water desalination used both at home and abroad at present include mainly the way of distillation, electroosmose process, hyperfiltration and
Ion exchange etc..
The way of distillation is exactly bitter heating to be allowed to explosive evaporation, then water vapour is condensed into the process of fresh water.The way of distillation
It is the desalination method used earliest.The advantages of way of distillation is simple in structure, easy to operate, pre-processing requirements are low, water quality purity is high；
The disadvantage is that high energy consumption, equipment is heavier, and requirement for anticorrosion is high, easy fouling of heat-exchanger surface etc..
Electroosmose process be under the action of DC electric field, ion throughout curve amberplex and migrate, make band ionize
A kind of Electrochemical separation process that son is partly separated from aqueous solution and other not charged components.Its advantage is that reagent consumption
Few, environmental pollution is small, easy to operate, it is easy to accomplish mechanization, automation.The disadvantage is that producing water ratio is low, water resource waste is serious, right
Uncharged substance such as organic matter, colloid, bacterium, suspended matter does not have removal ability.
Reverse osmosis is the property that ionic species can only be retained by solvent (being typically water) using reverse osmosis membrane selectivity
Matter overcomes the osmotic pressure of solvent using film both sides static pressure difference as motive force, so that solvent is realized by reverse osmosis membrane and is carried out to substance
The membrane process of separation.Its advantage is that removal rate is high, processing procedure is without phase-change, easy to operate, the degree of automation height etc., the disadvantage is that dense
Water discharge capacity is big, and energy consumption and water producing cost are higher.
Ion exchange resin desalinating process passes through Na or H-type cation exchange resin and OH type anion exchange trees by raw water
Fat removes the anions and canons in water by ion-exchange reactions, until the exchange capacity of resin exhausts, to which desalination be made
Water.The disadvantage is that a large amount of use acid, alkali as resin regeneration liquid, to cause secondary environmental pollution.
Invention content
In view of this, the purpose of the present invention is to provide a kind of bitter salt water desalting equipment and method for desalting brackish water, with gram
It takes in existing ion exchange desalinating process, a large amount of technologies for using acid, alkali to be endangered caused by environment as resin regeneration liquid are asked
Topic.
In a first aspect, bitter salt water desalting equipment provided in an embodiment of the present invention, including：Raw water water inlet pipe, ion exchange pot,
Cistern, air dissolved pump, carbon dioxide dissolving and carbon-dioxide generator, the raw water water inlet pipe and the ion exchange pot
Water inlet is in fluid communication, and the water outlet of the ion exchange pot and the cistern are in fluid communication, the cistern with it is described molten
Air pump is in fluid communication, and the outlet end of the air dissolved pump is connected to the inlet fluid of the carbon dioxide dissolving, the titanium dioxide
Carbon generator is in fluid communication with carbon dioxide dissolving, the outlet of the carbon dioxide dissolving and the ion exchange pot fluid
It is connected to, concentrated water discharge outlet is provided on the ion exchange pot.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein institute
It includes the first mixed-bed resin tank, the second mixed-bed resin tank and third mixed-bed resin tank, the first mixed bed tree to state ion exchange pot
It is all provided with water inlet, water outlet, regenerated liquid import on fat tank, the second mixed-bed resin tank and the third mixed-bed resin tank
It is exported with regenerated liquid, three on the first mixed-bed resin tank, the second mixed-bed resin tank and the third mixed-bed resin tank
A water inlet all with the raw water intake fluid communication, the first mixed-bed resin tank, the second mixed-bed resin tank
All it is in fluid communication with the cistern with three water outlets on the third mixed-bed resin tank, first mixed-bed resin
Three regenerated liquid imports on tank, the second mixed-bed resin tank and the third mixed-bed resin tank all with the titanium dioxide
The communication of carbon dissolving, the first mixed-bed resin tank, the second mixed-bed resin tank and the third mixed bed tree
Three on the fat tank regenerated liquids outlets all with the concentrated water discharge communication.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides second of first aspect
Possible embodiment, wherein the ion exchange pot further includes the first communicating pipe and the second communicating pipe, the first mixed bed tree
Three water inlets on fat tank, the second mixed-bed resin tank and third mixed-bed resin tank are all fluidly connected to main line water inlet pipe,
The main line water inlet pipe and the raw water are intake fluid communication, the first mixed-bed resin tank, the second mixed-bed resin tank and the
Three water outlets on three mixed-bed resin tanks are all fluidly connected to main line outlet pipe, the main line outlet pipe and the water storage
Pond is in fluid communication, and one end of first communicating pipe is fluidly connected to the first mixed-bed resin tank and second mixed-bed resin
On the main line water inlet pipe between tank, the other end of first communicating pipe be fluidly connected to the first mixed-bed resin tank and
On the main line outlet pipe between the second mixed-bed resin tank, one end of second communicating pipe is fluidly connected to described
On the main line water inlet pipe between two mixed-bed resin tanks and the third mixed-bed resin tank, the other end of second communicating pipe
Be fluidly connected on the main line outlet pipe between the second mixed-bed resin tank and the third mixed-bed resin tank, it is described into
It is all provided with control valve on the mouth of a river, water outlet, regenerated liquid import, regenerated liquid outlet, the first communicating pipe and the second communicating pipe.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the third of first aspect
Possible embodiment, wherein the portions Inner of the first mixed-bed resin tank, the second mixed-bed resin tank and third mixed-bed resin tank are all
It is provided with zwitterion mixed-bed resin, the zwitterion mixed-bed resin is by strongly basic anionic resin and Subacidity cation tree
Fat mixing is constituted.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the 4th of first aspect the
The possible embodiment of kind, wherein the water inlet and regenerated liquid outlet are all located at corresponding first mixed-bed resin
The upper end of tank, the second mixed-bed resin tank and the third mixed-bed resin tank, the water outlet and the regenerated liquid import are all
Positioned at the lower end of the corresponding first mixed-bed resin tank, the second mixed-bed resin tank and the third mixed-bed resin tank.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiments of first aspect, wherein institute
It states and is provided with pipe-line mixer, quartz filter and active carbon filter between raw water water inlet pipe and the ion exchange pot,
Flocculant import, the raw water water inlet pipe, pipe-line mixer, quartz filter, activity are provided on the pipe-line mixer
Carbon filter and ion exchange pot are in fluid communication successively.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiments of first aspect, wherein institute
It states and is provided with decarbonizing tower between ion exchange pot and the cistern, one end of the decarbonizing tower and the ion exchange pot fluid
Connection, the other end of the decarbonizing tower are in fluid communication with the cistern.
Second aspect, the embodiment of the present invention also provide a kind of method for desalting brackish water, and this method uses in first aspect
Bitter salt water desalting equipment includes the following steps：
Desalt processing is carried out to raw water using ion exchange pot, and desalination water is discharged into cistern by treated；
By the desalination water in cistern by air dissolved pump introducing carbon dioxide dissolving, and carbon-dioxide generator is produced
Raw carbon dioxide is passed through carbon dioxide dissolving, so that desalination water is combined with carbon dioxide and generates regenerated liquid；
The regenerated liquid is passed through ion exchange pot, the regenerated liquid is made to form dense salt with ions binding in ion exchange pot
Water；
Strong brine is exported by concentrated water discharge and is discharged.
In conjunction with second aspect, an embodiment of the present invention provides the first possible embodiments of second aspect, wherein from
When sub- swap tank carries out desalt processing, the first mixed-bed resin tank, the second mixed-bed resin tank and third mixed-bed resin tank one are standby
With tank, other two is work tank, and the control valve in inlet and outlet on slack tank is turned off；The regenerated liquid passes through
Regenerated liquid import is passed through slack tank, and exports and be discharged through regenerated liquid.
In conjunction with the first possible embodiment of second aspect, an embodiment of the present invention provides second of second aspect
Possible embodiment, wherein the connected relation of two work tanks includes following three kinds of states：
State one：The first mixed-bed resin tank is the slack tank, and the second mixed-bed resin tank and the third are mixed
Bed resin container is the work tank, and the water outlet of the second mixed-bed resin tank is described with the third mixed-bed resin tank
Water inlet is connected to by second communicating pipe；
State two：The second mixed-bed resin tank is the slack tank, and the first mixed-bed resin tank and the third are mixed
Bed resin container is the work tank, the water inlet of the water outlet of the first mixed-bed resin tank and the third mixed-bed resin tank
Mouth passes through first communicating pipe and/or second communicating pipe is connected to；
State three：The third mixed-bed resin tank is the slack tank, the first mixed-bed resin tank and the second mixed bed tree
Fat tank is the work tank, the water inlet of the water outlet of the first mixed-bed resin tank and the second mixed-bed resin tank
Mouth, which passes through, to be connected to first communicating pipe.
The embodiment of the present invention brings following advantageous effect：It is produced using by desalination water in cistern and carbon-dioxide generator
The mode that raw carbon dioxide mixes in carbon dioxide dissolving generates bicarbonate anion and positive hydrogen ion, and leads to
It crosses zwitterion and palingenesis is carried out to ion exchange pot, achieved the purpose that inexpensive regenerant ions swap tank, and then solve
It uses acid-alkali regeneration liquid to handle ion exchange pot in the prior art, pollutes environment and the high technical problem of regeneration cost, to
Realize following technique effect：
1. overcome existing ion exchange desalinating process, it is a large amount of that acid, alkali is used to endanger caused by environment as resin regeneration liquid
Evil, makees regenerated liquid, not only safety and environmental protection, but also saved operating cost using carbon dioxide；
2. needing first to detach yin and yang resin when existing resin mixed bed technique regeneration, then positive and negative is regenerated with acid, alkali respectively
Resin, then resin is re-mixed to the technological process of this set complexity.It can make negative and positive tree simultaneously using carbon dioxide as regenerated liquid
Fat regenerates, and enormously simplifies system structure, keeps resin mixed bed operation operability stronger；
3. compared to the brackish water desalinations technique such as hyperfiltration, way of distillation, this equipment investment cost and operating cost are lower.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification and attached drawing
Specifically noted structure is realized and is obtained.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the bitter salt water desalting equipment structural schematic diagram one that the embodiment of the present invention one provides；
Fig. 2 is the bitter salt water desalting equipment structural schematic diagram two that the embodiment of the present invention one provides.
Icon：1-raw water water inlet pipe；2-pipe-line mixers；3-flocculant imports；4-quartz filters；5-is living
Property carbon filter；6-ion exchange pots；6-1-the first mixed-bed resin tanks；6-2-the second mixed-bed resin tanks；6-3-third is mixed
Bed resin container；First communicating pipes of 6-4-；Second communicating pipes of 6-5-；7-water inlets；8-water outlets；9-zwitterion mixed beds
Resin；10-supersonic generators；11-decarbonizing towers；12-cisterns；13-air dissolved pumps；14-carbon dioxide dissolvings；
15-carbon-dioxide generators；16-regenerated liquid imports；17-regenerated liquids export；18-concentrated water discharges export；19-conductivity
On-line detector.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
In the description of the present invention, term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this hair
Bright and simplified description, does not indicate or imply the indicated device or element must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
It is a large amount of that acid, alkali is used to be endangered sternly caused by environment as resin regeneration liquid at present in ion exchange desalinating process
Weight is based on this, and bitter salt water desalting equipment and method for desalting brackish water provided in an embodiment of the present invention can solve in the prior art
Ion exchange pot is handled using acid-alkali regeneration liquid, pollutes environment and the high technical problem of regeneration cost.
For ease of understanding the present embodiment, the bitter salt water desalting equipment disclosed in the embodiment of the present invention is carried out first
It is discussed in detail.
Embodiment one
As shown in Figure 1, bitter salt water desalting equipment provided in an embodiment of the present invention, raw water water inlet pipe 1, store ion exchange pot 6
Pond 12, air dissolved pump 13, carbon dioxide dissolving 14 and carbon-dioxide generator 15, raw water water inlet pipe 1 and ion exchange pot 6
Water inlet is in fluid communication, and raw water can flow into ion exchange pot 6 through raw water water inlet pipe 1, and ion exchange pot 6 can carry out ion to raw water
Desalting processing is exchanged, water outlet and the cistern 12 of ion exchange pot 6 are in fluid communication, and the desalination water after desalting processing is passed through water storage
Storage in pond 12；Cistern 12 and air dissolved pump 13 are in fluid communication, the outlet end of air dissolved pump 13 and carbon dioxide dissolving 14 into
Mouth is in fluid communication, and carbon-dioxide generator 15 is in fluid communication with carbon dioxide dissolving 14, and concentrated water is provided on ion exchange pot 6
Exhaust outlet 18；When 6 ion exchange of ion exchange pot reduction, when needing regeneration treatment, the desalination in cistern 12 is used
Regenerative raw materials of the water as ion exchange pot 6, carbon dioxide mixes generation with desalination water and contains in carbon dioxide dissolving 14
Bicarbonate anion and positive hydrionic regenerated liquid, outlet and 6 fluid of ion exchange pot of carbon dioxide dissolving 14 connect
It is logical, to make bicarbonate anion and the portions Inner of positive hydrogen ion while effect and ion exchange pot 6, and then to ion exchange
Tank 6 generates palingenesis, contains the salt in bicarbonate anion and positive hydrionic regenerated liquid adion swap tank 6
Point, the more regenerated liquid of salt content is discharged by concentrated water discharge outlet 18.
As shown in Fig. 2, in an optional embodiment of the embodiment of the present invention, ion exchange pot 6 includes the first mixed bed tree
Fat tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3, the first mixed-bed resin tank 6-1, the second mixed-bed resin tank
Water inlet 7, water outlet 8, regenerated liquid import 16 and regenerated liquid outlet 17 are all provided on 6-2 and third mixed-bed resin tank 6-3, the
Three water inlets 7 on one mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3 all with raw water into
Water pipe 1 is in fluid communication, three on the first mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3
Water outlet 8 is all in fluid communication with cistern 12, the first mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin
Communication of three regenerated liquid imports 16 all with carbon dioxide dissolving 14 on tank 6-3, the first mixed-bed resin tank 6-
1, three regenerated liquids outlet 17 on the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3 all exports 18 with concentrated water discharge
It is in fluid communication；
Ion exchange pot 6 further includes the first communicating pipe 6-4 and the second communicating pipe 6-5, the first mixed-bed resin tank 6-1, second
Three water inlets 7 on mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3 are all fluidly connected to main line water inlet pipe, main line into
Water pipe is in fluid communication with raw water water inlet pipe 1, the first mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank
Three water outlets 8 on 6-3 are all fluidly connected to main line outlet pipe, and main line outlet pipe is in fluid communication with cistern 12, and first connects
One end of siphunculus 6-4 is connected on the main line water inlet pipe between the first mixed-bed resin tank 6-1 and the second mixed-bed resin tank 6-2, the
The other end of a connecting pipe 6-4 is connected to the main line outlet pipe between the first mixed-bed resin tank 6-1 and the second mixed-bed resin tank 6-2
On, one end of the second communicating pipe 6-5 be connected to the main line between the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3 into
On water pipe, the other end of the second communicating pipe 6-5 is connected between the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3
On the outlet pipe of main line, water inlet 7, water outlet 8, regenerated liquid import 16, regenerated liquid, which export, to be connected the 17, first communicating pipe 6-4 and second
It is all provided with control valve on siphunculus 6-5；First mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-
3 one are slack tank, other two is work tank, when to realize that two work tanks carry out ion exchange desalting processing, one
Slack tank is carried out at the same time regeneration treatment, so as in the first mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed bed tree
When one carries out regeneration treatment as slack tank in fat tank 6-3, still there are two work tanks to carry out ion exchange, ensures water with this
The continuity of processing；
It should be noted that coordinating application method about the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3, in hardship
It is discussed in detail in the explanation of desalination method, this will not be repeated here.
In another optional embodiment of the embodiment of the present invention, the first mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-
The portions Inner of 2 and third mixed-bed resin tank 6-3 are all provided with zwitterion mixed-bed resin 9, and zwitterion mixed-bed resin 9 is by strong basicity
Resin anion (R.A.) and acidulous cation resin mixing are constituted, so as to be carried out at desalination to raw water by ion-exchange method
Reason；Raw water from top to bottom passes through zwitterion mixed-bed resin 9, when constant flow rate, the packed height of zwitterion mixed-bed resin 9
The action time for determining raw water and zwitterion mixed-bed resin 9, to determine the effect of desalination, zwitterion mixed bed
The packed height of resin 9 is 2.0m~2.8m.When the packed height of zwitterion mixed-bed resin 9 is less than 2.0m, ion exchange is made
With weaker, desalting effect is poor；When the packed height of zwitterion mixed-bed resin 9 is higher than 2.8m, ion exchange is stronger, takes off
Salt excellent, but adjoint is that the cost of zwitterion mixed-bed resin 9 increases therewith, therefore makes zwitterion mixed-bed resin
9 packed height is 2.0m~2.8m, with this under lower process costs, can get preferable desalting processing effect.
Using acidulous cation resin and strongly basic anionic resin composition zwitterion mixed-bed resin 9, and can basis
Raw water quality situation adjusts yin and yang resin ratio, can be achieved at the same time except hardness, sulfate radical, except the mesh of nitrate anion and desalination
's.
It is all provided with ultrasound in first mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3
The working frequency of wave producer 10, supersonic generator 10 is 30kHz, can get higher cation and anion exchange using this frequency
Efficiency increases the dispersibility of carbon dioxide by supersonic generator 10, is conducive to bicarbonate anion and positive hydrogen ion
It is come into full contact with zwitterion mixed-bed resin 9, improves the regeneration effect of zwitterion mixed-bed resin 9.
Water inlet 7 and regenerated liquid outlet 17 are all located at the upper ends of corresponding ion exchange pot 6, water outlet 8 and regenerated liquid into
Mouthfuls 16 are all located at the lower end of corresponding ion exchange pot 6, and when original sub-block, water is flowed from above to below through ion exchange pot 6, from
When sub- 6 regeneration treatment of swap tank, by regenerated liquid pressure itself, from bottom to top by ion exchange pot 6, so as to be realization pair
6 back flush of ion exchange pot, is conducive to the desalination of ion exchange pot 6.
As shown in Fig. 2, in another optional embodiment of the embodiment of the present invention, raw water water inlet pipe 1 and ion exchange pot 6
Between be provided with pipe-line mixer 2, quartz filter 4 and active carbon filter 5, be provided with flocculant on pipe-line mixer 2
Import 3, raw water water inlet pipe 1, pipe-line mixer 2, quartz filter 4, active carbon filter 5 and ion exchange pot 6 connect successively
It connects；The raw water entered by raw water water inlet pipe 1 is mixed with the flocculant entered by flocculant import 3 in pipe-line mixer 2,
So that suspended matter and colloidal solid object in raw water is condensed into larger flco, then is removed by quartz filter 4 retains, quartz
Sand filter 4 is used in series with active carbon filter 5, suspended matter, organic matter, chlorine residue etc. in water removal can be gone, to ion exchange
Resin mixed bed in tank 6 plays a protective role.
As shown in Fig. 2, in another optional embodiment of the embodiment of the present invention, ion exchange pot 6 and cistern 12 it
Between be provided with decarbonizing tower 11, one end of decarbonizing tower 11 connects ion exchange pot 6, and the other end of decarbonizing tower 11 connects cistern 12,
When carrying out desalting to ion exchange pot 6, the carbon dioxide in ion exchange pot 6 is handled by decarbonizing tower 11 to be detached, from
And ensure the not carbonated of the desalination water in cistern 12.
In another optional embodiment of the embodiment of the present invention, conductivity on-line detector is provided in cistern 12
19, the conductivity of desalination water in cistern 12 is detected by conductivity on-line detector 19, to monitor producing water water quality, when production water
After conductivity reaches a certain setting value, i.e., need to implement the regeneration treatment to ion exchange pot 6, with improve ion exchange pot 6 from
Sub- exchange interaction performance.
In another optional embodiment of the embodiment of the present invention, the operating pressure of carbon dioxide dissolving 14 is 0.5Mpa
~0.6Mpa improves carbon dioxide solubility in water by pressuring method, so increase in regenerated liquid bicarbonate radical the moon from
Son and positive hydrionic content.
Embodiment two
As shown in Figure 1, the embodiment of the present invention provides a kind of method for desalting brackish water, it is light using the bitter in embodiment one
Makeup is set, following steps：
Desalt processing is carried out to raw water using ion exchange pot 6, and desalination water is discharged into cistern 12 by treated；
By the desalination water in cistern 12 by 13 introducing carbon dioxide dissolving 14 of air dissolved pump, and carbon dioxide is sent out
The carbon dioxide that raw device 15 generates is passed through carbon dioxide dissolving 14, so that desalination water is combined with carbon dioxide and generates regenerated liquid；
Regenerated liquid is passed through ion exchange pot 6, regenerated liquid is made to form strong brine with ions binding in ion exchange pot 6；
Strong brine is passed through into 18 discharge of concentrated water discharge outlet.
Carbon dioxide is used to be mixed with desalination water as regenerated liquid, to ion exchange it should be noted that this method has reached
Tank 6 carries out the purpose of regeneration treatment.
As shown in Fig. 2, in an optional embodiment of the embodiment of the present invention, when ion exchange pot 6 carries out desalt processing
When, the first mixed-bed resin tank 6-1, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3 one are slack tank, in addition two
A is work tank, and the control valve on water inlet 7 and water outlet 8 on slack tank is closed；Regenerated liquid is passed through into regenerated liquid import 16
It is passed through slack tank, and through 17 discharge of regenerated liquid outlet.
It should be noted that the connected relation of two work tanks includes following three kinds of states：
State one：First mixed-bed resin tank 6-1 is slack tank, the second mixed-bed resin tank 6-2 and third mixed-bed resin tank 6-3
For work tank, the water outlet 8 of the second mixed-bed resin tank 6-2 passed through for the second communicating pipe with the water inlet 7 of third mixed-bed resin tank 6-3
6-5 is connected to；
State two：Second mixed-bed resin tank 6-2 is slack tank, the first mixed-bed resin tank 6-1 and third mixed-bed resin tank 6-3
For work tank, the water outlet 8 of the first mixed-bed resin tank 6-1 passed through for the first communicating pipe with the water inlet 7 of third mixed-bed resin tank 6-3
6-4 and/or the connection of the second communicating pipe 6-5；
State three：Third mixed-bed resin tank 6-3 is slack tank, the first mixed-bed resin tank 6-1 and the second mixed-bed resin tank 6-2
For work tank, the water inlet 7 of the water outlet 8 of the first mixed-bed resin tank 6-1 and the second mixed-bed resin tank 6-2 passed through for the first communicating pipe
6-4 is connected to.
Three of the above state, it can be ensured that there are two work tank tandem workings always, to realize that bitter is continuously desalinated,
Ensure that stable salt rejection rate, operability are strong simultaneously；Desalination water water quality is detected by conductivity on-line detector 19, works as desalination water
When conductivity is increased to setting value, using the slack tank after regeneration treatment as work tank, and a conduct in work tank is standby
Regeneration treatment is carried out with tank, is continuously desalinated to realize bitter, and ensure that stable salt rejection rate.
Finally it should be noted that：Above example, only specific implementation mode of the invention, to illustrate the skill of the present invention
Art scheme, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to the present invention into
Go detailed description, it will be understood by those of ordinary skill in the art that：Any one skilled in the art is at this
It invents in the technical scope disclosed, still can modify or can be thought easily to the technical solution recorded in previous embodiment
To variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make corresponding
The essence of technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection scope of the present invention
Within.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of bitter salt water desalting equipment, which is characterized in that including：Raw water water inlet pipe (1), ion exchange pot (6), cistern
(12), air dissolved pump (13), carbon dioxide dissolving (14) and carbon-dioxide generator (15), the raw water water inlet pipe (1) and institute
The water inlet for stating ion exchange pot (6) is in fluid communication, water outlet and the cistern (12) fluid of the ion exchange pot (6)
Connection, the cistern (12) are in fluid communication with the air dissolved pump (13), outlet end and the dioxy of the air dissolved pump (13)
Change the inlet fluid connection of carbon dissolving (14), the carbon-dioxide generator (15) connects with carbon dioxide dissolving (14) fluid
Logical, outlet and the ion exchange pot (6) of the carbon dioxide dissolving (14) are in fluid communication, the ion exchange pot (6)
On be provided with concentrated water discharge outlet (18).
2. bitter salt water desalting equipment according to claim 1, which is characterized in that the ion exchange pot (6) includes first
Mixed-bed resin tank (6-1), the second mixed-bed resin tank (6-2) and third mixed-bed resin tank (6-3), the first mixed-bed resin tank
It is all provided with water inlet (7) on (6-1), the second mixed-bed resin tank (6-2) and the third mixed-bed resin tank (6-3), goes out
The mouth of a river (8), regenerated liquid import (16) and regenerated liquid outlet (17), the first mixed-bed resin tank (6-1), the second mixed bed tree
The water inlet (7) on fat tank (6-2) and the third mixed-bed resin tank (6-3) all with raw water water inlet pipe (1) fluid
Connection, the first mixed-bed resin tank (6-1), the second mixed-bed resin tank (6-2) and the third mixed-bed resin tank (6-3)
On the water outlet (8) all with the cistern (12) be in fluid communication, the first mixed-bed resin tank (6-1), described second
The regenerated liquid import (16) on mixed-bed resin tank (6-2) and the third mixed-bed resin tank (6-3) all with the titanium dioxide
The communication of carbon dissolving (14), the first mixed-bed resin tank (6-1), the second mixed-bed resin tank (6-2) and
Regenerated liquid outlet (17) on the third mixed-bed resin tank (6-3) all connects with concentrated water discharge outlet (18) fluid
It is logical.
3. bitter salt water desalting equipment according to claim 2, which is characterized in that the ion exchange pot (6) further includes
A connecting pipe (6-4) and the second communicating pipe (6-5), the first mixed-bed resin tank (6-1), the second mixed-bed resin tank (6-2) and
The water inlet (7) on third mixed-bed resin tank (6-3) is all fluidly connected to main line water inlet pipe, the main line water inlet pipe and institute
State raw water water inlet pipe (1) fluid communication, the first mixed-bed resin tank (6-1), the second mixed-bed resin tank (6-2) and third mixed bed
The water outlet (8) on resin container (6-3) is all fluidly connected to main line outlet pipe, the main line outlet pipe and the cistern
(12) it is in fluid communication；
One end of first communicating pipe (6-4) is fluidly connected to the first mixed-bed resin tank (6-1) and second mixed bed
On the main line water inlet pipe between resin container (6-2), the other end of first communicating pipe (6-4) is fluidly connected to described
On the main line outlet pipe between one mixed-bed resin tank (6-1) and the second mixed-bed resin tank (6-2), second connection
One end of pipe (6-5) is fluidly connected between the second mixed-bed resin tank (6-2) and the third mixed-bed resin tank (6-3)
On the main line water inlet pipe, the other end of second communicating pipe (6-5) is fluidly connected to the second mixed-bed resin tank (6-2)
On the main line outlet pipe between the third mixed-bed resin tank (6-3)；
The water inlet (7), water outlet (8), regenerated liquid import (16), regenerated liquid outlet (17), the first communicating pipe (6-4) and the
It is all provided with control valve on two communicating pipes (6-5).
4. bitter salt water desalting equipment according to claim 2, which is characterized in that the first mixed-bed resin tank (6-1),
The portions Inner of two mixed-bed resin tanks (6-2) and third mixed-bed resin tank (6-3) are all provided with zwitterion mixed-bed resin (9), described
Zwitterion mixed-bed resin (9) is made of strongly basic anionic resin and acidulous cation resin mixing.
5. bitter salt water desalting equipment according to claim 2, which is characterized in that the water inlet (7) and the regenerated liquid
It exports (17) and is all located at the corresponding first mixed-bed resin tank (6-1), the second mixed-bed resin tank (6-2) and the third
It is mixed that the upper end of mixed-bed resin tank (6-3), the water outlet (8) and the regenerated liquid import (16) are all located at corresponding described first
Bed resin container (6-1), the second mixed-bed resin tank (6-2) and the third mixed-bed resin tank (6-3) lower end.
6. bitter salt water desalting equipment according to claim 1, which is characterized in that the raw water water inlet pipe (1) and it is described from
Pipe-line mixer (2), quartz filter (4) and active carbon filter (5), the pipeline are provided between sub- swap tank (6)
Flocculant import (3), the raw water water inlet pipe (1), pipe-line mixer (2), quartz filter are provided on mixer (2)
(4), active carbon filter (5) and ion exchange pot (6) are in fluid communication successively.
7. bitter salt water desalting equipment according to claim 1, which is characterized in that the ion exchange pot (6) and the storage
Decarbonizing tower (11) is provided between pond (12), one end and the ion exchange pot (6) of the decarbonizing tower (11) are in fluid communication,
The other end of the decarbonizing tower (11) is in fluid communication with the cistern (12).
8. a kind of method for desalting brackish water, which is characterized in that including using claim 1-7 any one of them brackish water desalinations
Equipment, this method comprises the following steps：
Desalt processing is carried out to raw water using ion exchange pot (6), and desalination water is discharged into cistern (12) by treated；
By the desalination water in cistern (12) by air dissolved pump (13) introducing carbon dioxide dissolving (14), and by carbon dioxide
The carbon dioxide that generator (15) generates is passed through carbon dioxide dissolving (14), and desalination water is made to be combined generation regeneration with carbon dioxide
Liquid；
The regenerated liquid is passed through ion exchange pot (6), so that the regenerated liquid is formed with ion exchange pot (6) interior ions binding dense
Brine；
Strong brine is passed through into concentrated water discharge outlet (18) discharge.
9. method for desalting brackish water according to claim 8, which is characterized in that ion exchange pot (6) carries out desalt processing
When, the first mixed-bed resin tank (6-1), the second mixed-bed resin tank (6-2) and third mixed-bed resin tank (6-3) one are slack tank,
Other two is work tank, and the control valve in water inlet (7) and water outlet (8) on slack tank is turned off；The regenerated liquid is logical
It crosses regenerated liquid import (16) and is passed through slack tank, and through regenerated liquid outlet (17) discharge.
10. method for desalting brackish water according to claim 9, which is characterized in that the connected relation of two work tanks includes
Three kinds of states below：
State one：First mixed-bed resin tank (6-1) is slack tank, the second mixed-bed resin tank (6-2) and third mixed-bed resin tank (6-
3) it is work tank, the water outlet (8) of the second mixed-bed resin tank (6-2) passes through with the water inlet (7) of third mixed-bed resin tank (6-3)
Second communicating pipe (6-5) is connected to；
State two：Second mixed-bed resin tank (6-2) is slack tank, the first mixed-bed resin tank (6-1) and third mixed-bed resin tank (6-
3) it is work tank, the water outlet (8) of the first mixed-bed resin tank (6-1) passes through with the water inlet (7) of third mixed-bed resin tank (6-3)
First communicating pipe (6-4) and/or the second communicating pipe (6-5) connection；
State three：Third mixed-bed resin tank (6-3) is slack tank, the first mixed-bed resin tank (6-1) and the second mixed-bed resin tank (6-
2) it is work tank, the water outlet (8) of the first mixed-bed resin tank (6-1) and the water inlet (7) of the second mixed-bed resin tank (6-2) pass through
First communicating pipe (6-4) is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675619.0A CN108503096A (en) | 2018-06-26 | 2018-06-26 | Bitter salt water desalting equipment and method for desalting brackish water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675619.0A CN108503096A (en) | 2018-06-26 | 2018-06-26 | Bitter salt water desalting equipment and method for desalting brackish water |
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| Publication Number | Publication Date |
|---|---|
| CN108503096A true CN108503096A (en) | 2018-09-07 |
Family
ID=63403774
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810675619.0A Pending CN108503096A (en) | 2018-06-26 | 2018-06-26 | Bitter salt water desalting equipment and method for desalting brackish water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364629A (en) * | 2022-09-13 | 2022-11-22 | 华能沁北发电有限责任公司 | Comprehensive utilization system and method for carbon reduction of tail gas of thermal power plant |
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|---|---|---|---|---|
| CN1039569A (en) * | 1989-05-25 | 1990-02-14 | 清华大学 | Method for regeneration of ion exchanging resin by CO 2 |
| CN101781041A (en) * | 2009-06-09 | 2010-07-21 | 张世文 | Method for desalting bitter by electromembrane method and equipment thereof |
| CN201834817U (en) * | 2010-09-29 | 2011-05-18 | 周麟 | High-salinity water quality treatment device |
| CN209052484U (en) * | 2018-06-26 | 2019-07-02 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Bitter salt water desalting equipment |
-
2018
- 2018-06-26 CN CN201810675619.0A patent/CN108503096A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039569A (en) * | 1989-05-25 | 1990-02-14 | 清华大学 | Method for regeneration of ion exchanging resin by CO 2 |
| CN101781041A (en) * | 2009-06-09 | 2010-07-21 | 张世文 | Method for desalting bitter by electromembrane method and equipment thereof |
| CN201834817U (en) * | 2010-09-29 | 2011-05-18 | 周麟 | High-salinity water quality treatment device |
| CN209052484U (en) * | 2018-06-26 | 2019-07-02 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Bitter salt water desalting equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115364629A (en) * | 2022-09-13 | 2022-11-22 | 华能沁北发电有限责任公司 | Comprehensive utilization system and method for carbon reduction of tail gas of thermal power plant |
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