CN209411984U - A kind of utilization of wastewater resource and salt production device - Google Patents
A kind of utilization of wastewater resource and salt production device Download PDFInfo
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- CN209411984U CN209411984U CN201822200679.5U CN201822200679U CN209411984U CN 209411984 U CN209411984 U CN 209411984U CN 201822200679 U CN201822200679 U CN 201822200679U CN 209411984 U CN209411984 U CN 209411984U
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Abstract
The utility model discloses a kind of utilization of wastewater resource and salt production devices, comprising: sodium ion exchange column, nanofiltration device, weak anion exchange column, reverse osmosis unit, electrodialysis plant a, electrodialysis plant b, reactor；Sodium ion exchange column outlet is connect with nanofiltration device, nanofiltration device water outlet is connect with weak anion exchange column, weak anion exchange column water outlet is connect with reverse osmosis unit, regeneration liquid waste in sodium ion exchange column is delivered to reactor by bottom pipe, concentrated water in reverse osmosis unit is delivered to reactor by bottom pipe, the reactor outlet is connect with sodium ion exchange column inlet, nanofiltration device concentrated solution outlet is connected by pipeline with electrodialysis plant a, and the outlet of weak anion exchange column regenerated liquid is connected by pipeline with electrodialysis plant b.The device is not polluted by organic matter the influence changed with salt concentration in water, can effectively realize high-salt wastewater resource utilization, while recycling effective salinity in waste water.
Description
Technical field
The utility model belongs to water process use in conjunction technical field, specifically a kind of utilization of wastewater resource and production salt
Device.
Background technique
High-salt wastewater refers to the high slat-containing wastewater generated during coal gasification waste water treatment for reuse, mainly contains in waste water
Sodium ion, calcium ion, magnesium ion, chloride ion, sulfate ion and a small amount of potassium ion, nitrate ion etc., wherein also containing
There is certain organic matter etc..Currently, the technology of domestic coal gasification high slat-containing wastewater processing have it is following several:
(1) evaporation pond steams salt
(2) reverse osmosis+MVR mechanical steam recompression+multiple-effect evaporation+alternating temperature crystallization.
(3) reverse osmosis+electrodialytic membranes/positive infiltration+evaporative crystallization
(4) nanofiltration+film concentration+evaporative crystallization
But the generally existing shortcoming of these techniques, such as evaporation pond also referred to as dry pond, make full use of solar energy, handle
At low cost, operation maintenance is simple, but is limited to the conditions such as weather geography geology, needs to do seepage control project processing, exists impurely
The risk being lauched；After common reverse osmosis concentration reverse osmosis and with high salt, mechanical steam recompression technology is first used before unsaturation
It is concentrated with multiple-effect evaporation, finally enters crystal system desalination.The technology is grasped due to mechanical steam recompression technological system
It is relatively narrow to make range, it is desirable that condition is harsher, is not applied for the biggish strong brine processing of salt change of component in waste water, crystal salt matter
Purity is not high, and there is also just permeate the selection for drawing liquid and regeneration issues and organic fouling.
Utility model content
To solve the above problems existing in the prior art, the application provides a kind of utilization of wastewater resource and salt production device,
The device is not polluted by organic matter the influence changed with salt concentration in water, can effectively realize high-salt wastewater resource utilization, together
Effective salinity in Shi Huishou waste water.
To achieve the above object, the technical solution of the application are as follows: a kind of utilization of wastewater resource and salt production device, comprising:
Sodium ion exchange column, nanofiltration device, weak anion exchange column, reverse osmosis unit, electrodialysis plant a, electrodialysis plant b, reaction
Device；One end of the sodium ion exchange column is connected with water inlet line, and sodium ion exchange column outlet is connect with nanofiltration device, nanofiltration dress
It sets water outlet to connect with weak anion exchange column, weak anion exchange column water outlet is connect with reverse osmosis unit, sodium ion exchange
Regeneration liquid waste in column is delivered to reactor by bottom pipe, and the concentrated water in reverse osmosis unit is delivered to instead by bottom pipe
Device is answered, the reactor outlet is connect with sodium ion exchange column inlet, and nanofiltration device concentrated solution outlet passes through pipeline and electrodialysis
Device a is connected, and the outlet of weak anion exchange column regenerated liquid is connected by pipeline with electrodialysis plant b.
Further, the reactor bottom is connected with dreg discharging box.
Further, the nanofiltration device is nanofiltration membrane or reverse osmosis membrane.
Further, the reverse osmosis unit is that bipolar reverse osmosis or high pressure is reverse osmosis.
Further, the reverse osmosis unit water outlet is connected to reuse pipeline.
Nanofiltration device concentrate enters electrodialysis plant a and produces industrial product salt sodium sulphate, weak anion exchange column regeneration
Waste liquid enters electrodialysis plant b and produces industrial product salt sodium chloride.
Due to using the technology described above, can obtain following technical effect: the application realizes waste water to the utility model
All recycle, without blowdown, do not use medicament, reduce environmental pollution, save great lot of water resources, while effectively reducing scale inhibition
The dosage of dispersing agent；The problem of can solve salt water scaling of water system in actual production process, concentrated water system run all right, herein
On the basis of recycle salinity in waste water, reach the state that no waste generates.The device is not polluted by organic matter dense with salinity in water
The influence for spending variation, can effectively realize high-salt wastewater resource utilization, while recycling effective salinity in waste water.
Detailed description of the invention
Fig. 1 is a kind of utilization of wastewater resource and salt production device structural schematic diagram；
Fig. 2 is 2 structural schematic diagram of embodiment；
Number explanation in figure: 1, salt water fills, 2, chlorine recycling can, 3, knockout drum, 4, electrolytic cell, 5, booster pump a, 6,
Reverse osmosis equipment, 7, booster pump b, 8, pure water alkali tank.11, sodium ion exchange column, 12, reactor, 13, nanofiltration device, 14, electric osmose
Analysis apparatus a, 15, weak anion exchange column, 16, electrodialysis plant b, 17, dreg discharging box, 18, reverse osmosis unit.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments: as example to this Shen
It please be further described explanation.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of utilization of wastewater resource and salt production devices, comprising: sodium ion exchange column,
Nanofiltration device, weak anion exchange column, reverse osmosis unit, electrodialysis plant a, electrodialysis plant b, reactor；The sodium ion
One end of exchange column is connected with water inlet line, and sodium ion exchange column outlet is connect with nanofiltration device, nanofiltration device water outlet with it is weak
Anion-exchange column connection, weak anion exchange column water outlet are connect with reverse osmosis unit, the regenerated in sodium ion exchange column
Liquid is delivered to reactor by bottom pipe, and the concentrated water in reverse osmosis unit is delivered to reactor by bottom pipe, described anti-
Device outlet is answered to connect with sodium ion exchange column inlet, nanofiltration device concentrated solution outlet is connected by pipeline with electrodialysis plant a, weak
The outlet of anion-exchange column regenerated liquid is connected by pipeline with electrodialysis plant b.
Preferably, the sodium ion exchange column goes out the water hardness less than 5-20mg/L；The concentrate of nanofiltration device is in 20000-
80000mg/L or so；The concentrate salinity of reverse osmosis unit is controlled in 20000-60000mg/L or so；Electrodialysis plant a is dense
Contracting hydraulic control salt manufacturing concentration 120000-200000mg/L or so；The concentrate of electrodialysis plant b controls salinity 150000-
250000mg/L or so.The rate of recovery of nanofiltration device: 60-90%.The regenerated liquid of sodium ion can be using the dense of electrodialysis plant b
Contracting liquid or nanofiltration concentrate.The concentrate of reverse osmosis unit can be used as the precipitating reagent of ion exchange column.
The process flow of the device are as follows:
Step 1: coal gasification high-salt wastewater enters sodium ion exchange column, and the water outlet of sodium ion exchange column enters nanofiltration device；
Step 2: nanofiltration device water outlet enters weak anion exchange column, and nanofiltration device concentrated water enters electrodialysis plant a production
Industrial product salt sodium sulphate；
Step 3: weak anion exchange column water outlet enters reverse osmosis unit, and weak anion exchange column regeneration liquid waste enters electricity
Electrodialysis apparatus b produces industrial product salt sodium chloride；
Step 4: reverse osmosis unit water outlet enters reuse pipeline；
Step 5: sodium ion exchange column regeneration waste liquid is mixed with reverse osmosis unit concentrated water in reactor, reactor outlet with
The connection of sodium ion exchange column inlet, the slag outlet that reactor generates.
Embodiment 2
As shown in Fig. 2, entering by the waste water that embodiment 1 is handled the present embodiment provides a kind of production alkali device and producing alkali device
In, the production alkali device includes: salt water filling, booster pump a, booster pump b, knockout drum, electrolytic cell, reverse osmosis equipment, pure water
Alkali tank；The salt water fills the water inlet that water outlet, knockout drum water outlet, reverse osmosis equipment water return outlet are connected to booster pump a
On pipeline, the outlet conduit of the booster pump a has two-way, wherein being connected to electrolytic cell shell bottom all the way, another way is connected to
Reverse osmosis equipment water inlet, reverse osmosis equipment water outlet are connected to pure water alkali pot bottom, and water outlet is logical in the middle part of the pure water alkali tank
It crosses booster pump b and is connected to electrolyte bath tube layer water inlet, which is linked back to pure water alkali tank top；
Knockout drum inlet port is connected at the top of the electrolytic cell shell.
After salt production device completes process, salt water enters brine tank, and brine tank outlet is connect with booster pump a, and booster pump a mono-
It separates water and enters electrolytic cell, another part water outlet enters reverse osmosis equipment.Salt water is entered by electrolytic cell lower end, flows through electrolytic bath shell
Layer is overflowed from upper end.Knockout drum is received by carrying out gas-liquid separation, the Cl of generation after electrolytic cell spilling salt water2Into recycling
Tank, and liquid phase returns to the recycling of booster pump a entrance after gas-liquid separation.Reverse osmosis equipment is passed through in the water outlet of booster pump a another part
Afterwards, into pure water alkali tank；Reverse osmosis return of waste water is recycled to booster pump a entrance.Water outlet in the middle part of pure water alkali tank, into electricity
Barrel layer is solved, is then refluxed for pure water alkali tank；To which NaOH concentration is continuously improved in pure water alkali tank, H in pure water alkali tank2It is directly outer
Row.
Salinity is recycled on this basis and reaches alkaline purpose, reaches the state that no waste generates, and has significant economic effect
Benefit and environmental benefit.
The above, only the utility model create preferable specific embodiment, but the protection that the utility model is created
Range is not limited thereto, and anyone skilled in the art creates the technical scope disclosed in the utility model
Interior, technical solution and its utility model design created according to the utility model are subject to equivalent substitution or change, should all cover
Within the protection scope that the utility model is created.
Claims (5)
1. a kind of utilization of wastewater resource and salt production device characterized by comprising sodium ion exchange column, nanofiltration device, weak yin
Ion exchange column, reverse osmosis unit, electrodialysis plant a, electrodialysis plant b, reactor；One end of the sodium ion exchange column connects
It is connected to water inlet line, sodium ion exchange column outlet is connect with nanofiltration device, and nanofiltration device water outlet and weak anion exchange column connect
It connects, weak anion exchange column water outlet is connect with reverse osmosis unit, and the regeneration liquid waste in sodium ion exchange column passes through bottom pipe
Be delivered to reactor, the concentrated water in reverse osmosis unit by bottom pipe be delivered to reactor, the reactor outlet and sodium from
Son exchange column inlet connection, nanofiltration device concentrated solution outlet are connected by pipeline with electrodialysis plant a, and weak anion exchange column is again
Raw liquid outlet is connected by pipeline with electrodialysis plant b.
2. a kind of utilization of wastewater resource and salt production device according to claim 1, which is characterized in that the reactor bottom
It is connected with dreg discharging box.
3. a kind of utilization of wastewater resource and salt production device according to claim 1, which is characterized in that the nanofiltration device is
Nanofiltration membrane or reverse osmosis membrane.
4. a kind of utilization of wastewater resource and salt production device according to claim 1, which is characterized in that the reverse osmosis unit
It is reverse osmosis for bipolar reverse osmosis or high pressure.
5. a kind of utilization of wastewater resource and salt production device according to claim 1, which is characterized in that the reverse osmosis unit
Water outlet is connected to reuse pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200679.5U CN209411984U (en) | 2018-12-26 | 2018-12-26 | A kind of utilization of wastewater resource and salt production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200679.5U CN209411984U (en) | 2018-12-26 | 2018-12-26 | A kind of utilization of wastewater resource and salt production device |
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| CN209411984U true CN209411984U (en) | 2019-09-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
-
2018
- 2018-12-26 CN CN201822200679.5U patent/CN209411984U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11563229B1 (en) | 2022-05-09 | 2023-01-24 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11611099B1 (en) | 2022-05-09 | 2023-03-21 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11699803B1 (en) | 2022-05-09 | 2023-07-11 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
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