CN213556365U - Desulfurization wastewater treatment device - Google Patents
Desulfurization wastewater treatment device Download PDFInfo
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- CN213556365U CN213556365U CN202022003154.XU CN202022003154U CN213556365U CN 213556365 U CN213556365 U CN 213556365U CN 202022003154 U CN202022003154 U CN 202022003154U CN 213556365 U CN213556365 U CN 213556365U
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- reverse osmosis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The utility model discloses a desulfurization wastewater treatment device, which comprises a water tank, a pressurized water supply part and a plurality of reverse osmosis units, wherein the pressurized water supply part is provided with a water inlet and a water outlet, and the reverse osmosis units are provided with a water inlet, a produced water outlet and a concentrated water outlet; the reverse osmosis units are sequentially arranged in the front-back direction, and a concentrated water outlet of the reverse osmosis unit positioned in front is communicated with a water inlet of the reverse osmosis unit adjacent to the rear; the water inlet of the pressurizing water supply part is communicated with the inside of the water tank, the water outlet of the pressurizing water supply part is communicated with the water inlet of the front reverse osmosis unit, the water outlet from the second reverse osmosis unit to the last reverse osmosis unit in the front is communicated with the inside of the water tank, the water outlet of the front reverse osmosis unit is used for discharging water after desalination treatment, and the concentrated water outlet of the rear reverse osmosis unit is used for discharging concentrated brine. Therefore, a plurality of reverse osmosis units are connected in series to carry out gradual desalination and concentration treatment on the fed sewage, and the treatment cost of the wastewater can be obviously reduced.
Description
Technical Field
The utility model belongs to the water treatment field especially relates to a desulfurization effluent treatment plant.
Background
However, due to the existence of osmotic pressure and the limitation of practical operation pressure, the existing conventional reverse osmosis membrane module and the reverse osmosis system formed by the conventional reverse osmosis membrane module can only concentrate the salt water to 50 to 70g/L, which severely limits the further improvement of the water recovery rate of the reverse osmosis system and thus generates a large amount of strong brine. This creates a tremendous pressure on investment and energy consumption for subsequent processing, particularly for subsequent evaporation, crystallization, etc. processes where zero liquid discharge is required. Although the ultrahigh pressure reverse osmosis membrane module and the reverse osmosis system formed by the conventional reverse osmosis membrane module can break through the concentration limit, the operation cost is high and certain potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a desulfurization waste water treatment device that simple structure, and concentration efficiency is high, and concentration effect is good simultaneously.
In order to achieve the above purpose, the technical solution of the present invention is as follows: a desulfurization wastewater treatment device comprises a water tank, a pressurized water supply part and a plurality of reverse osmosis units, wherein the pressurized water supply part is provided with a water inlet and a water outlet, and the reverse osmosis units are provided with a water inlet, a produced water outlet and a concentrated water outlet;
the reverse osmosis units are sequentially arranged in the front-back direction, and a concentrated water outlet of the reverse osmosis unit positioned in front is communicated with a water inlet of the reverse osmosis unit positioned next to the reverse osmosis unit;
the water inlet of pressure boost water supply spare with communicate in the water tank, the delivery port of pressure boost water supply spare with be located the forefront the water inlet intercommunication of reverse osmosis unit, all except the forefront the product water export of reverse osmosis unit all with communicate in the water tank, be located the forefront the product water export of reverse osmosis unit is used for discharging the water after the desalination, is located the rearmost the dense water export of reverse osmosis unit is used for discharging the strong brine.
The beneficial effects of the above technical scheme are that: in this way, a plurality of reverse osmosis units are connected in series to carry out stage-by-stage desalination treatment on the fed sewage, wherein the salinity of the water discharged from the water production outlet of the reverse osmosis unit positioned at the forefront is lowest, and the water can be used as reuse water for reproduction.
In the technical scheme, the water tank is provided with a water inlet, a water replenishing port and a water outlet, the water inlet of the pressurizing water supply part is communicated with the water outlet of the water tank, the water production outlets of all the reverse osmosis units except the foremost part are communicated with the water inlet of the water tank, and the water replenishing port is used for being communicated with a water supply pipe.
The beneficial effects of the above technical scheme are that: so that the water quantity in the water tank can be always kept stable, and continuous sewage treatment can be satisfied, wherein the water supply pipe is used for introducing the wastewater generated by the desulfurization process.
In the technical scheme, a tee joint is arranged at a water production outlet of the reverse osmosis unit which is positioned at the forefront, first valves are respectively arranged at the rest two joints of the tee joint, any one of the first valves is communicated with a water inlet of the water tank, and the rest first valve is used for discharging water after desalination treatment.
The technical scheme has the beneficial effects that the water discharged from the water production outlet of the foremost reverse osmosis unit can be discharged or returned to the water tank for further circular treatment.
In the technical scheme, the pressurizing water supply part comprises a water delivery pump and a high-pressure pump, a water outlet of the water delivery pump is communicated with a water inlet of the high-pressure pump, a water inlet of the water delivery pump forms a water inlet of the pressurizing water supply part, and a water outlet of the high-pressure pump forms a water outlet of the pressurizing water supply part.
The beneficial effects of the above technical scheme are that: therefore, the water pressure of the reverse osmosis device can be ensured to remarkably improve the salt content in the water discharged from the concentrated water outlet of each stage of reverse osmosis unit, thereby improving the concentration effect.
In the technical scheme, the water delivery pump is a centrifugal water pump, and the lift of the water delivery pump is 5-50 m.
The beneficial effects of the above technical scheme are that: the structure is simple, and the water supply is stable.
In the technical scheme, the high-pressure pump is a plunger pump or a high-pressure centrifugal water pump, and the lift of the high-pressure pump is 400-900 m.
The beneficial effects of the above technical scheme are that: the pressurization is stable.
In the technical scheme, the reverse osmosis units are provided with two reverse osmosis units.
The beneficial effects of the above technical scheme are that: it has low cost and good concentration effect.
In the technical scheme, the apparent rejection rate of the reverse osmosis unit positioned at the front is 50-95%, and the apparent rejection rate of the reverse osmosis unit positioned at the rear is 20-60%.
The beneficial effects of the above technical scheme are that: the concentration efficiency is high, and the treatment cost is low.
Drawings
FIG. 1 is a schematic view of a desulfurization waste water treatment apparatus according to an embodiment of the present invention.
FIG. 2 is another schematic view of a desulfurization waste water treatment apparatus according to an embodiment of the present invention
In the figure: 1 water tank, 2 pressure boost water supply spare, 21 water delivery pump, 22 high-pressure pump, 3 reverse osmosis unit, 31 first valve.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a desulfurization wastewater treatment apparatus, comprising a water tank 1, a pressurized water supply member 2 and a plurality of reverse osmosis units 3, wherein the pressurized water supply member 2 has a water inlet and a water outlet, and the reverse osmosis units 3 have a water inlet, a produced water outlet and a concentrated water outlet;
the reverse osmosis units 3 are sequentially arranged in the front-back direction, and a concentrated water outlet of the reverse osmosis unit 3 positioned in front is communicated with a water inlet of the reverse osmosis unit 3 adjacent to the rear;
the water inlet of the pressurizing water supply part 2 is communicated with the inside of the water tank 1, the water outlet of the pressurizing water supply part 2 is communicated with the water inlet of the reverse osmosis unit 3 positioned at the forefront, all the water outlet of the reverse osmosis unit 3 except the forefront are communicated with the inside of the water tank 1, the water outlet of the reverse osmosis unit 3 positioned at the forefront is used for discharging water after desalination treatment, the concentrated water outlet of the reverse osmosis unit 3 positioned at the rearmost is used for discharging concentrated brine, and thus, the plurality of reverse osmosis units are connected in series to carry out desalination treatment step by step on the fed sewage, wherein the water discharged from the water-producing outlet of the forward-most reverse osmosis unit, which has the lowest salinity, can be used as reuse water for further production, and the high-salinity wastewater discharged from the concentrated water outlet of the reverse osmosis unit positioned at the rearmost part can be discharged into a sewage treatment plant for treatment.
In the technical scheme, the water tank 1 is provided with a water inlet, a water supplementing port and a water outlet, the water inlet of the pressurizing water supply part 2 is communicated with the water outlet of the water tank 1, the water outlets of all the reverse osmosis units 3 except the foremost part are communicated with the water inlet of the water tank 1, the water supplementing port is communicated with a water supply pipe, so that the water quantity in the water tank can be always kept stable, continuous sewage treatment is met, and the water supply pipe is used for introducing wastewater generated by a desulfurization process.
In the above technical scheme, the pressurized water supply member 2 includes a water delivery pump 21 and a high-pressure pump 22, a water outlet of the water delivery pump 21 is communicated with a water inlet of the high-pressure pump 22, a water inlet of the water delivery pump 21 forms a water inlet of the pressurized water supply member 2, and a water outlet of the high-pressure pump 22 forms a water outlet of the pressurized water supply member 2 (the water inlet of the water delivery pump is communicated with a water outlet of the water tank, the water outlet of the water delivery pump is communicated with a water inlet of the high-pressure pump, and the water outlet of the high-pressure pump is communicated with a water inlet of the reverse osmosis unit located at the forefront), so that the water pressure of the reverse osmosis device is ensured to significantly improve the salt content in water discharged from the concentrated water outlet of each stage of.
In the above technical scheme, the water delivery pump 21 is a centrifugal water pump, the lift of the water delivery pump is 5m-50m (preferably 10-30m), the structure is simple, and the water supply is stable.
In the above technical solution, the high-pressure pump 22 is a plunger pump or a high-pressure centrifugal water pump, the lift is 400-.
In the technical scheme, the reverse osmosis units 3 are two, so that the cost is low, and the concentration effect is good.
In the technical scheme, the apparent rejection rate of the reverse osmosis unit 3 positioned at the front is 50-95% (preferably 60-80%), the apparent rejection rate of the reverse osmosis unit 3 positioned at the rear is 20-60% (preferably 30-50%), the concentration efficiency is high, and the treatment cost is low.
Example 2
As shown in fig. 2, the difference from embodiment 1 is that a tee joint is disposed at a water outlet of the frontmost reverse osmosis unit 3 in the above technical solution, first valves 31 are disposed at the remaining two joints of the tee joint, respectively, and any one of the first valves 31 is communicated with a water inlet of the water tank, and the remaining one of the first valves 31 is used for discharging water after desalination treatment, so that water discharged from the water outlet of the frontmost reverse osmosis unit can be discharged or returned to the water tank for further circulation treatment.
The embodiment breaks through the concentration limit of the conventional reverse osmosis system on the premise of not obviously improving the conventional reverse osmosis operating pressure (not exceeding 7MPa), greatly reduces the discharge amount of the final strong brine of the system, improves the water resource recycling efficiency, and greatly reduces the comprehensive treatment cost for realizing zero liquid discharge.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The desulfurization wastewater treatment device is characterized by comprising a water tank (1), a pressurization water supply part (2) and a plurality of reverse osmosis units (3), wherein the pressurization water supply part (2) is provided with a water inlet and a water outlet, and the reverse osmosis units (3) are provided with a water inlet, a produced water outlet and a concentrated water outlet;
the reverse osmosis units (3) are sequentially arranged in the front-back direction, and a concentrated water outlet of the reverse osmosis unit (3) positioned in front is communicated with a water inlet of the reverse osmosis unit (3) adjacent to the rear;
the water inlet of pressure boost water supply spare (2) with intercommunication in water tank (1), the delivery port of pressure boost water supply spare (2) with be located the forefront the water inlet intercommunication of reverse osmosis unit (3), all except the forefront the product water export of reverse osmosis unit (3) all with intercommunication in water tank (1) is located the forefront the product water export of reverse osmosis unit (3) is used for discharging the water after the desalination, is located the rear the dense water export of reverse osmosis unit (3) is used for discharging the strong brine.
2. The desulfurization wastewater treatment apparatus according to claim 1, wherein said water tank (1) has a water inlet, a water replenishing port and a water outlet, the water inlet of said pressurized water supply member (2) is communicated with the water outlet of said water tank (1), the water production outlets of all said reverse osmosis units (3) except the foremost are communicated with the water inlet of said water tank (1), and said water replenishing port is used to communicate with a water supply pipe.
3. The desulfurization wastewater treatment device according to claim 2, characterized in that a tee joint is provided at the produced water outlet of the frontmost reverse osmosis unit (3), the remaining two joints of the tee joint are respectively provided with a first valve (31), any one of the first valves (31) is communicated with the water inlet of the water tank, and the remaining first valve (31) is used for discharging the desalted water.
4. The desulfurization wastewater treatment apparatus according to claim 2 or 3, wherein said pressurized water supply member (2) comprises a water delivery pump (21) and a high-pressure pump (22), a water outlet of said water delivery pump (21) is communicated with a water inlet of said high-pressure pump (22), a water inlet of said water delivery pump (21) constitutes a water inlet of said pressurized water supply member (2), and a water outlet of said high-pressure pump (22) constitutes a water outlet of said pressurized water supply member (2).
5. The desulfurization wastewater treatment apparatus according to claim 4, wherein said water transfer pump (21) is a centrifugal pump having a head of 5m to 50 m.
6. The desulfurization wastewater treatment device according to claim 4, wherein the high-pressure pump (22) is a plunger pump or a high-pressure centrifugal water pump, and the head thereof is 400-900 m.
7. The desulfurization wastewater treatment apparatus according to claim 4, wherein the reverse osmosis unit (3) is provided in two.
8. The desulfurization wastewater treatment apparatus according to claim 7, wherein the apparent rejection of the reverse osmosis unit (3) located at the front is 50-95%, and the apparent rejection of the reverse osmosis unit (3) located at the rear is 20-60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022003154.XU CN213556365U (en) | 2020-09-14 | 2020-09-14 | Desulfurization wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022003154.XU CN213556365U (en) | 2020-09-14 | 2020-09-14 | Desulfurization wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213556365U true CN213556365U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022003154.XU Active CN213556365U (en) | 2020-09-14 | 2020-09-14 | Desulfurization wastewater treatment device |
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| CN (1) | CN213556365U (en) |
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2020
- 2020-09-14 CN CN202022003154.XU patent/CN213556365U/en active Active
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