CN110935318A - Sewage treatment system with ultrafiltration structure - Google Patents
Sewage treatment system with ultrafiltration structure Download PDFInfo
- Publication number
- CN110935318A CN110935318A CN201911202673.4A CN201911202673A CN110935318A CN 110935318 A CN110935318 A CN 110935318A CN 201911202673 A CN201911202673 A CN 201911202673A CN 110935318 A CN110935318 A CN 110935318A
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- pipeline
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- water
- ultrafiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a sewage treatment system with an ultrafiltration structure, which comprises an air storage tank, a circulating water tank, a back flush water tank and an ultrafiltration assembly, wherein two side edges of the air storage tank are respectively connected with an air pipeline, one end of the air pipeline is connected with an air compressor, one side of the air compressor is fixedly provided with a pressure gauge six, the other end of the air pipeline is connected with a pipeline III through an air flush valve, the air pipeline is connected with a flow meter II, one end of the pipeline III is connected with one end of the ultrafiltration assembly through the pressure gauge II, one end of the ultrafiltration assembly is respectively connected with a drain valve and a concentrated water emptying valve, the other end of the pipeline III is connected with the circulating water tank through a water inlet valve, a circulating water pump is connected between the pipeline III and the circulating water tank, a pipeline filter is connected between the circulating water pump and the circulating water tank, one side of the circulating water pump is connected with a first pipeline and a second pipeline respectively, and a first liquid level meter is fixed in the circulating water pump.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage treatment system with an ultrafiltration structure.
Background
Reverse osmosis water treatment technology is an advanced water treatment technology, can remove salt in water, but has strict requirements on water inflow, so that pretreatment is very important. The ultrafiltration is the last procedure before reverse osmosis, and the ultrafiltration system needs to be automatically backwashed regularly during the operation process. During backwashing, water inlet is cut off, a backwashing water pump is started to work, and purified water from the ultrafiltration water production tank reversely enters the membrane column from a water production port of the membrane column. And (3) reversely passing through the filter membrane in an inward-outward flow mode, and reversely washing away the pollutants deposited on the outer pore wall of the membrane wire. Add sodium hypochlorite to backwash aquatic ration through the measuring pump to strengthen the cleaning performance, but conventional ultrafiltration backwash method effect is poor, and the pollutant on the outer pore wall of unable effectual getting rid of membrane silk leads to ultrafiltration play water quality of water unstable, and chemical cleaning cycle is short, directly influences follow-up reverse osmosis's safe operation and sewage treatment's efficiency, inconvenient people's use.
Disclosure of Invention
The technical task of the invention is to provide a sewage treatment system with an ultrafiltration structure to solve the above problems.
The technical scheme of the invention is realized as follows:
a sewage treatment system with an ultrafiltration structure comprises a gas storage tank, a circulating water tank, a back flush water tank and an ultrafiltration assembly, wherein two side edges of the gas storage tank are respectively connected with an air pipeline, one end of the air pipeline is connected with an air compressor, one side of the air compressor is fixedly provided with a pressure gauge six, the other end of the air pipeline is connected with a pipeline three through an air flushing valve, a flowmeter two is connected onto the air pipeline, one end of the pipeline three is connected with one end of the ultrafiltration assembly through the pressure gauge two, one end of the ultrafiltration assembly is respectively connected with a drain valve and a concentrated water emptying valve, the other end of the pipeline three is connected with the circulating water tank through a water inlet valve, a circulating water pump is connected between the pipeline three and the circulating water tank, a pipeline filter is connected between the circulating water pump and the circulating water tank, and a pipeline three positioned between the circulating water pump and the water inlet valve is connected, one side of the circulating water pump is respectively connected with a first pipeline and a second pipeline, a first liquid level meter is fixed in the circulating water pump, the first pipeline is connected with the ultrafiltration component through a concentrated water outlet valve, a fourth pressure gauge is fixed on a first pipeline positioned between the concentrated water outlet valve and the ultrafiltration component, a third flow meter is connected on the first pipeline, one end of the second pipeline is connected with the fourth pipeline through a third valve, one end of the fourth pipeline is connected with one end of the backwashing water tank through a return valve, the other end of the fourth pipeline is connected with the ultrafiltration component through a purified water outlet valve, a third pressure gauge is fixed on a fourth pipeline positioned between the purified water outlet valve and the ultrafiltration component, one end of the fourth pipeline is connected with one end of a fifth pipeline positioned between the purified water outlet valve and the third pressure gauge, and the other end of the fifth pipeline is connected with one end of the backwashing water tank through a backwashing water pump and a water flush valve, a liquid level meter II is fixed inside the backwashing water tank, and a flow meter I and a pressure meter I are connected to the pipeline V between the backwashing water pump and the water flushing valve.
Preferably, one end of the circulating water pump is connected with the water tank through a water inlet pipeline, and the water inlet pipeline is connected with an electromagnetic valve.
Preferably, the backwash water pump is connected with the backwash water tank through a sixth valve.
Preferably, the first liquid level meter and the second liquid level meter are both pressure transmitters.
Preferably, the water inlet valve, the water return valve, the air flushing valve, the water discharge valve, the concentrated water emptying valve, the concentrated water outlet valve, the purified water outlet valve and the water flushing valve are pneumatic valves.
Preferably, the first pressure gauge, the fifth pressure gauge and the sixth pressure gauge are all electric contact pressure gauges.
Preferably, a first valve is connected between the air compressor and the air storage tank.
Preferably, an oil-water separator is connected between the air pipeline between the second flowmeter and the air storage tank, and a second valve is connected between the oil-water separator and the air storage tank.
Preferably, the first flowmeter, the second flowmeter and the third flowmeter are all floating ball flowmeters.
Preferably, the pipeline filter is connected with the circulating water pump through a valve IV.
Compared with the prior art, the invention has the advantages and positive effects that:
1. can realize the purification and treatment of sewage, ensure the efficiency of sewage purification, and the quality of the effluent is more stable.
2. The purification and the cleaning of the ultrafiltration assembly can be realized, the cleaning quality and efficiency of the ultrafiltration assembly are guaranteed, the labor intensity of work is reduced, and the management and the control of people are facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a block diagram of a wastewater treatment system with an ultrafiltration structure according to an embodiment of the present invention;
in the figure:
1. a gas storage tank; 2. a circulating water tank; 3. backwashing the water tank; 4. an ultrafiltration module; 5. an air duct; 6. an air compressor; 7. a sixth pressure gauge; 8. an air blast valve; 9. a third pipeline; 10. a second flowmeter; 11. a second pressure gauge; 12. a drain valve; 13. a concentrated water emptying valve; 14. a water inlet valve; 15. a water circulating pump; 16. a pipeline filter; 17. a pressure gauge five; 18. a fifth valve; 19. a first pipeline; 20. a second pipeline; 21. a first liquid level meter; 22. a concentrated water outlet valve; 23. a fourth pressure gauge; 24. a third flowmeter; 25. a third valve; 26. a fourth pipeline; 27. a water return valve; 28. a purified water outlet valve; 29. a third pressure gauge; 30. a fifth pipeline; 31. backwashing the water pump; 32. a water flush valve; 33. a second liquid level meter; 34. a first flowmeter; 35. a first pressure gauge; 36. a water inlet pipe; 37. a water tank; 38. a first valve; 39. an oil-water separator; 40. a second valve; 41. a fourth valve; 42. and a sixth valve.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The invention is further described with reference to the following figures and specific examples.
In a first embodiment, as shown in fig. 1, a sewage treatment system with an ultrafiltration structure according to an embodiment of the present invention includes an air storage tank 1, a circulation water tank 2, a backwash water tank 3, and an ultrafiltration module 4, where an ultrafiltration membrane is fixed inside the ultrafiltration module 4, and the ultrafiltration membrane is made of polyvinylidene fluoride with good chemical resistance, and can withstand corrosion of acid and alkali resistance and chemicals of oxidant lamps, and has strong anti-pollution capability, two sides of the air storage tank 1 are respectively connected with an air pipeline 5, one end of the air pipeline 5 is connected with an air compressor 6, one side of the air compressor 6 is fixed with a pressure gauge six 7, the other end of the air pipeline 5 is connected with a pipeline three 9 through an air purge valve 8, the air pipeline 5 is connected with a flow meter two 10, one end of the pipeline three 9 is connected with one end of the ultrafiltration module 4 through a pressure gauge two 11, one end of the ultrafiltration module 4 is respectively connected with a drain valve 12 and a concentrate, the other end of the pipeline III 9 is connected with the circulating water tank 2 through a water inlet valve 14, a circulating water pump 15 is connected between the pipeline III 9 and the circulating water tank 2, a pipeline filter 16 is connected between the circulating water pump 15 and the circulating water tank 2, a pressure gauge V17 and a valve V18 are connected to the pipeline III 9 between the circulating water pump 15 and the water inlet valve 14, a pipeline I19 and a pipeline II 20 are respectively connected to one side edge of the circulating water pump 15, a liquid level gauge I21 is fixed in the circulating water pump 15, the pipeline I19 is connected with the ultrafiltration module 4 through a concentrated water outlet valve 22, a pressure gauge IV 23 is fixed to the pipeline I19 between the concentrated water outlet valve 22 and the ultrafiltration module 4, a flow meter III 24 is connected to the pipeline I19, and one end of the pipeline II 20 is connected with a pipeline IV 26 through a valve III 25, one end of the fourth pipeline 26 is connected with one end of the backwash water tank 3 through a water return valve 27, the other end of the fourth pipeline 26 is connected with the ultrafiltration component 4 through a purified water outlet valve 28, a pressure gauge III 29 is fixed on the fourth pipeline 26 between the purified water outlet valve 28 and the ultrafiltration component 4, the fourth pipeline 26, which is positioned at one end of the fourth pipeline 26 and between the purified water outlet valve 28 and the pressure gauge III 29, is connected with one end of a fifth pipeline 30, the other end of the fifth pipeline 30 is connected with one end of the backwash water tank 3 through a backwash water pump 31 and a water flush valve 32, a second liquid level meter 33 is fixed inside the backwash water tank 3, and a first flow meter 34 and a first pressure gauge 35 are connected on the fifth pipeline 30 between the backwash water pump 31 and the water flush valve 32.
In the second embodiment, as shown in fig. 1, one end of the circulating water pump 15 is connected to a water tank 37 through a water inlet pipe 36, and the water inlet pipe 36 is connected to an electromagnetic valve; the water supply to the circulation water tank 2 can be conveniently realized by the water tank 37 and the electromagnetic valve.
In the third embodiment, as shown in fig. 1, the backwash water pump 31 is connected to the backwash water tank 3 through a valve six 42; the control and the connection between the backwashing water tank 3 and the backwashing water pump 31 can be convenient through a valve six 42.
In the fourth embodiment, as shown in fig. 1, the first liquid level meter 21 and the second liquid level meter 33 are both pressure transmitters.
Fifth embodiment, as shown in fig. 1, the water inlet valve 14, the water return valve 27, the air flush valve 8, the water discharge valve 12, the concentrate evacuation valve 13, the concentrate outlet valve 22, the purified water outlet valve 28, and the water flush valve 32 are all pneumatic valves.
In a sixth embodiment, as shown in fig. 1, the first pressure gauge 35, the fifth pressure gauge 17, and the sixth pressure gauge 7 are all electric contact pressure gauges; the electric contact pressure gauge can be convenient for people to control and observe.
In the seventh embodiment, as shown in fig. 1, a first valve 38 is connected between the air compressor 6 and the air storage tank 1.
In an eighth embodiment, as shown in fig. 1, an oil-water separator 39 is connected between the air pipe 5 located between the second flowmeter 10 and the air tank 1, and a valve second 40 is connected between the oil-water separator 39 and the air tank 1; the water and impurities in the air can be cleaned through oil-water separation, and the cleanness and the sanitation of the gas are guaranteed.
In the ninth embodiment, as shown in fig. 1, the first flow meter 34, the second flow meter 10 and the third flow meter 24 are all floating ball flow meters, and the floating ball flow meters can be used conveniently by people.
In the tenth embodiment, as shown in fig. 1, the pipeline filter 16 is connected with the circulating water pump 15 through a valve four 41; the connection between the line filter 16 and the circulating water pump 15 can be facilitated by the valve four 41.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the ultrafiltration module 4 can filter the impurity water, the water solution flows through the membrane surface under the push of pressure, the solvent and small molecule solute which are smaller than the membrane pores permeate the membrane to become purified solution, and is discharged through the drain valve 12, the solute and solute groups which are larger than the membrane pores are intercepted and can be discharged through the concentrated water drain valve 13 to become concentrated solution, the impurities on the membrane surface can be remained, the impurities on the membrane surface can be washed clean through air washing and water washing, thereby ensuring the cleanness and sanitation of the ultrafiltration membrane, the purification efficiency is improved, firstly, water washing is carried out, the circulating water pump 15, the water inlet valve 14 and the concentrated water drain valve 13 are opened, the impurities in the membrane shell can be washed clean and enter the water production stage, the circulating water pump 15 and the water inlet valve 14 are opened, the water drain valve 13 is closed, the purified water outlet valve 28 and the concentrated water outlet valve 22 are opened in the water production stage, water can be produced, air flushing is conducted simultaneously, after the water inlet valve 14 is closed in place, the concentrated water emptying valve 13 is opened, the purified water outlet valve 28 is closed, the concentrated water outlet valve 22 is closed, and the air flushing valve 8 is opened for air flushing at the same time by closing the water inlet valve 14 and closing the circulating water pump 15; and after the air flushing is finished, water backwashing is carried out, the air flushing valve 8 is closed, the backwashing water pump 31 and the water flushing valve 32 are opened for water backwashing, and impurities on the surface of the ultrafiltration membrane can be thoroughly cleaned, so that the cleanness and sanitation of flushing are guaranteed, and the working efficiency is improved.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (10)
1. The sewage treatment system with the ultrafiltration structure is characterized by comprising a gas storage tank (1), a circulating water tank (2), a back-flushing water tank (3) and an ultrafiltration component (4), wherein two side edges of the gas storage tank (1) are respectively connected with an air pipeline (5), one end of the air pipeline (5) is connected with an air compressor (6), one side of the air compressor (6) is fixedly provided with a pressure gauge six (7), the other end of the air pipeline (5) is connected with a pipeline three (9) through an air flushing valve (8), the air pipeline (5) is connected with a flow meter two (10), one end of the pipeline three (9) is connected with one end of the ultrafiltration component (4) through a pressure gauge two (11), one end of the ultrafiltration component (4) is respectively connected with a drain valve (12) and a concentrated water emptying valve (13), and the other end of the pipeline three (9) is connected with the circulating water tank (2) through a water inlet valve (14), a circulating water pump (15) is connected between the pipeline III (9) and the circulating water tank (2), a pipeline filter (16) is connected between the circulating water pump (15) and the circulating water tank (2), a pressure gauge V (17) and a valve V (18) are connected on the pipeline III (9) positioned between the circulating water pump (15) and the water inlet valve (14), a pipeline I (19) and a pipeline II (20) are respectively connected on one side edge of the circulating water pump (15), a liquid level gauge I (21) is fixed in the circulating water pump (15), the pipeline I (19) is connected with the ultrafiltration component (4) through a concentrated water outlet valve (22), a pressure gauge IV (23) is fixed on the pipeline I (19) positioned between the concentrated water outlet valve (22) and the ultrafiltration component (4), and a flowmeter III (24) is connected on the pipeline I (19), one end of the second pipeline (20) is connected with a fourth pipeline (26) through a third valve (25), one end of the fourth pipeline (26) is connected with one end of the backwashing water tank (3) through a return valve (27), the other end of the fourth pipeline (26) is connected with the ultrafiltration component (4) through a pure water outlet valve (28), a third pressure gauge (29) is fixed on the fourth pipeline (26) between the pure water outlet valve (28) and the ultrafiltration component (4), one end of the fourth pipeline (26) is connected with one end of a fifth pipeline (30) through the fourth pipeline (26) between the pure water outlet valve (28) and the third pressure gauge (29), the other end of the fifth pipeline (30) is connected with one end of the backwashing water tank (3) through a backwashing water pump (31) and a water flushing valve (32), and a second liquid level gauge (33) is fixed inside the backwashing water tank (3), and a first flow meter (34) and a first pressure gauge (35) are connected to the fifth pipeline (30) between the backwashing water pump (31) and the water flushing valve (32).
2. The sewage treatment system with an ultrafiltration structure according to claim 1, wherein one end of the circulating water pump (15) is connected with a water tank (37) through a water inlet pipe (36), and a solenoid valve is connected to the water inlet pipe (36).
3. The sewage treatment system with an ultrafiltration structure according to claim 1, wherein the backwash water pump (31) is connected to the backwash water tank (3) through a valve six (42).
4. The wastewater treatment system with an ultrafiltration structure according to claim 1, wherein the first level gauge (21) and the second level gauge (33) are both pressure transducers.
5. The wastewater treatment system with an ultrafiltration structure according to claim 1, wherein the inlet valve (14), the return valve (27), the air flush valve (8), the drain valve (12), the concentrate drain valve (13), the concentrate outlet valve (22), the clean water outlet valve (28) and the water flush valve (32) are all pneumatic valves.
6. The sewage treatment system with the ultrafiltration structure according to claim 1, wherein the pressure gauge I (35), the pressure gauge V (17) and the pressure gauge VI (7) are all electric contact pressure gauges.
7. The sewage treatment system with an ultrafiltration structure according to claim 1, wherein a first valve (38) is connected between the air compressor (6) and the air storage tank (1).
8. The sewage treatment system with an ultrafiltration structure according to claim 1, wherein an oil-water separator (39) is connected between the air pipe (5) between the second flowmeter (10) and the air storage tank (1), and a valve two (40) is connected between the oil-water separator (39) and the air storage tank (1).
9. The wastewater treatment system with an ultrafiltration structure according to claim 1, wherein the first flow meter (34), the second flow meter (10) and the third flow meter (24) are all floating ball flow meters.
10. The sewage treatment system with an ultrafiltration structure according to claim 1, wherein said pipe filter (16) is connected to said circulating water pump (15) by means of a valve four (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202673.4A CN110935318A (en) | 2019-11-29 | 2019-11-29 | Sewage treatment system with ultrafiltration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202673.4A CN110935318A (en) | 2019-11-29 | 2019-11-29 | Sewage treatment system with ultrafiltration structure |
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| Publication Number | Publication Date |
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| CN110935318A true CN110935318A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911202673.4A Withdrawn CN110935318A (en) | 2019-11-29 | 2019-11-29 | Sewage treatment system with ultrafiltration structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111389229A (en) * | 2020-04-29 | 2020-07-10 | 王兴光 | Oil-water separation membrane and oil-water separation device made of polymer |
-
2019
- 2019-11-29 CN CN201911202673.4A patent/CN110935318A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111389229A (en) * | 2020-04-29 | 2020-07-10 | 王兴光 | Oil-water separation membrane and oil-water separation device made of polymer |
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