CN220485404U - High-salt high-difficulty industrial wastewater anti-pollution concentration device - Google Patents
High-salt high-difficulty industrial wastewater anti-pollution concentration device Download PDFInfo
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- CN220485404U CN220485404U CN202321281959.8U CN202321281959U CN220485404U CN 220485404 U CN220485404 U CN 220485404U CN 202321281959 U CN202321281959 U CN 202321281959U CN 220485404 U CN220485404 U CN 220485404U
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- water
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- water inlet
- valve
- reverse osmosis
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- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 132
- 239000012528 membrane Substances 0.000 claims abstract description 54
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the field of wastewater treatment equipment, in particular to an anti-pollution concentration device for high-salt and high-difficulty industrial wastewater. The utility model relates to an anti-pollution concentration device for high-salt high-difficulty industrial wastewater, which comprises a water inlet pipeline, a first reverse osmosis membrane group and a second reverse osmosis membrane group, wherein the first reverse osmosis membrane group comprises a first water inlet end, a first water producing end and a first water concentrating end, the second reverse osmosis membrane group comprises a second water inlet end, a second water producing end and a second water concentrating end, one section of the first water inlet end and one section of the second water inlet end are connected with the water inlet pipeline, the first water producing end and the second water producing end are connected with the water producing pipeline, and the first water concentrating end and the second water concentrating end are connected with the water concentrating pipeline; a pipeline is arranged between the first concentrated water end and the second water inlet end, and a second valve is arranged on the pipeline; and a pipeline is arranged between the second concentrated water end and the first water inlet end, and a fifth valve is arranged on the pipeline.
Description
Technical Field
The utility model relates to the field of wastewater treatment equipment, in particular to an anti-pollution concentration device for high-salt and high-difficulty industrial wastewater.
Background
The membrane separation technology is applied to sewage treatment and is mainly realized by separating, purifying and concentrating different components in sewage, and compared with the traditional separation technology, the membrane separation technology has the advantages of being capable of operating at normal temperature, low in energy consumption, high in efficiency, simple in process operation, small in investment and free of phase change in the operation process. Today, new sewage treatment methods have been developed by applying membrane technology in the field of sewage treatment, such as microfiltration, ultrafiltration, nanofiltration, electrodialysis, reverse osmosis, etc.
In the prior art, the reclaimed water recycling is carried out by adopting a double-membrane method of ultrafiltration and reverse osmosis, wherein the reverse osmosis concentration is carried out by adopting a one-stage two-stage (2:1) process to recover less than 75%, the process is more stable for treating circulating cooling water and other similar waste water with lower salt content and lower pollutant concentration, but has serious influence on the service life of a membrane for treating high-salt and high-difficulty industrial waste water such as printing and dyeing, papermaking, desulfurization and the like, and the fouling situation is obviously increased.
At present, in the industrial wastewater treatment process, especially the applications such as reclaimed water recycling, zero emission and the like of high-salt industrial wastewater, the application of membranes such as reverse osmosis and the like is indispensable, the effect is gradually outstanding, but in the longer-time application, the problems of serious fouling, frequent cleaning and the like of the membrane system caused by the complexity of the industrial wastewater are more or less caused when the membrane system is used for treating the high-salt industrial wastewater, the self-consumption of the system is increased, the service life of the membrane is greatly influenced by shutdown cleaning, and the effective running time is shortened.
In addition, in the conventional membrane system design, a mode of adopting a first-stage two-section mode and a first-stage three-section mode is common, and the process adopts 2:1 or 6:3:2, the system is relatively poor in adjustability, each section can be started or stopped at the same time, otherwise, the designed recovery rate cannot be achieved, but the cleaning effect of the system is often achieved, and meanwhile, according to different pollution and blockage conditions of each section, a manufacturer can adopt a single-end cleaning mode, so that the cleaning downtime is greatly prolonged, and the effective operation time is shortened.
The traditional operation mode of the first-stage two-stage or the first-stage three-stage is more serious in concentration polarization, and meanwhile, the concentration polarization is maintained in a relatively high concentration polarization state for a long time, so that not only is the water permeation resistance increased, but also the pollutant on the surface of the membrane is accumulated and deposited for a long time, and the problem that the pollutant is difficult to clean is caused, and the problem is also one of factors influencing the service life of the membrane product to be shortened.
Disclosure of Invention
The utility model provides an anti-pollution concentration device for high-salt high-difficulty industrial wastewater, which comprises the following specific scheme:
the utility model provides a high salt high difficult industrial waste water anti-pollution enrichment facility, includes inlet channel, first reverse osmosis membrane group and second reverse osmosis membrane group, first reverse osmosis membrane group includes first inlet end, first water end and first dense water end, second reverse osmosis membrane group includes second inlet end, second water end and second dense water end, first inlet end and second inlet end one section connect inlet channel, first water end and second water end are produced and are connected and produce the water pipe, first dense water end and second dense water end connect dense water pipe; a pipeline is arranged between the first concentrated water end and the second water inlet end, and a second valve is arranged on the pipeline; and a pipeline is arranged between the second concentrated water end and the first water inlet end, and a fifth valve is arranged on the pipeline.
A first circulating pump and a first valve are arranged between the first water inlet end and the water inlet pipeline.
A second circulating pump and a fourth valve are arranged between the second water inlet end and the water inlet pipeline.
A sixth valve is arranged between the first concentrated water end and the concentrated water pipeline.
And a third valve is arranged between the second concentrated water end and the concentrated water pipeline.
The water inlet pipeline is provided with a water inlet flowmeter, a high-pressure pump and a pressure transmitter behind the pump.
And a concentrated water regulating valve and a concentrated water flowmeter are arranged on the concentrated water pipeline.
And a water production flowmeter is arranged on the water production pipeline.
Including wasing inlet channel and wasing the return channel, wasing inlet channel and wasing the return channel and all being connected with first reverse osmosis membrane group, wasing inlet channel and wasing the return channel and all being connected with the second reverse osmosis membrane group.
According to the utility model, the system can be used as a membrane group for mutual standby (and the first osmosis membrane group and the second reverse osmosis membrane group can be used for mutual standby or simultaneously) through the improvement of system arrangement, and can be cut off in a single section under the condition of low initial water quantity, so that the recovery rate of the system is unchanged, and the system becomes a mutual standby system; when two reverse osmosis membrane groups are needed to be used simultaneously, the sequence of water inflow passing through the first osmosis membrane group and the second reverse osmosis membrane group can be staggered through switching different valves, so that the concentration in the two sections of systems periodically fluctuates, dilution flushing and the phenomenon of concentration polarization which is stable in the interior are damaged, and the system is prevented from being blocked.
Drawings
FIG. 1 is a schematic diagram of a high-salt and high-difficulty industrial wastewater anti-pollution concentration device;
FIG. 2 is a schematic diagram of a second embodiment of an antipollution concentration device for high-salt and high-difficulty industrial wastewater (the state of the diagram is that the inlet water passes through a first osmosis membrane group and then a second osmosis membrane group);
FIG. 3 is a schematic diagram III of a high-salt and high-difficulty industrial wastewater anti-pollution concentration device (the state shown in the figure is the condition that the inlet water passes through a second osmosis membrane group and then passes through a first reverse osmosis membrane group);
FIG. 4 is a schematic diagram of a high-salt and high-difficulty industrial wastewater anti-pollution concentration device according to the present utility model (the state shown in the figure is that the inlet water only passes through the first permeable membrane group);
FIG. 5 is a schematic diagram of a high-salt and high-difficulty industrial wastewater anti-pollution concentration device (the state of the figure is that the inlet water only passes through a second permeable membrane group);
wherein the reference numerals: 1. a water inlet pipe; 11. a water inlet flowmeter; 12. a high pressure pump; 13. a post-pump pressure transmitter; 2. a water producing pipeline; 21. a water production flowmeter; 3. a concentrated water pipeline; 31. a concentrate regulating valve; 32. a concentrated water flowmeter; 4. a first osmotic membrane group; 5. a second osmotic membrane group; 61. a first valve; 62. a second valve; 63. a third valve; 64. a fourth valve; 65. a fifth valve; 66. a sixth valve; 71. a first circulation pump; 72. a second circulation pump; 81. cleaning a water inlet pipeline; 82. the return line is cleaned.
Detailed Description
Further description is provided below in connection with fig. 1-5:
as shown in fig. 1:
the utility model provides a high salt high difficult industrial waste water anti-pollution enrichment facility, includes inlet channel 1, first reverse osmosis membrane group 4 and second reverse osmosis membrane group 5, and first reverse osmosis membrane group 4 includes first inlet end, first water end and first dense water end, and second reverse osmosis membrane group 5 includes second inlet end, second water end and second dense water end, first inlet end and second inlet end one section connect inlet channel 1, and first water end and second water end are connected and are produced water pipeline 2, and first dense water end and second dense water end are connected and are produced water pipeline 3; a pipeline is arranged between the first concentrated water end and the second water inlet end, and a second valve 62 is arranged on the pipeline; a pipeline is arranged between the second concentrated water end and the first water inlet end, and a fifth valve 65 is arranged on the pipeline. A first circulation pump 71 and a first valve 61 are provided between the first water inlet end and the water inlet pipe. A second circulation pump 72 and a fourth valve 64 are provided between the second water inlet and the water inlet line. A sixth valve 66 is provided between the first concentrate side and the concentrate line. A third valve 63 is arranged between the second concentrated water end and the concentrated water pipeline. The water inlet pipeline 1 is provided with a water inlet flowmeter 11, a high-pressure pump 12 and a post-pump pressure transmitter 13. The concentrated water pipeline 3 is provided with a concentrated water regulating valve 31 and a concentrated water flow meter 32. The water producing pipeline 2 is provided with a water producing flowmeter 21.
Still including wasing inlet channel 81 and wasing return line 82, wasing inlet channel 81 and wasing return line 82 and all being connected with first reverse osmosis membrane group 4, wasing inlet channel 81 and wasing return line 82 and all being connected with second reverse osmosis membrane group 5.
The membrane types and the number of the first reverse osmosis membrane group 4 and the second reverse osmosis membrane group 5 are completely consistent, the 48 bar medium-pressure reverse osmosis membrane product is adopted, the types of the first circulating pump 71 and the second circulating pump 72 are also completely the same (the uniform type is adopted at the same time, the maintenance and the maintenance of equipment are also more facilitated), but the actual operation parameters are different according to the operation conditions during operation.
As shown in fig. 2:
the water flow schematic diagram of fig. 2 can be obtained by opening the first valve 61, the second valve 62, the third valve 63, the high-pressure pump 12, the first circulating pump 71, the second circulating pump 72 and closing the fourth valve 64, the fifth valve 65 and the sixth valve 66 on the basis of fig. 1, and the recovery rate required by the system can be achieved by adjusting the concentrate adjusting valve 31. The solution is that the water flow is first treated by a first circulation pump 71 and then by a second circulation pump 72.
As shown in fig. 3:
the fourth valve 64, the fifth valve 65, the sixth valve 66, the high-pressure pump 12, the first circulating pump 71 and the second circulating pump 72 are opened on the basis of fig. 1, the first valve 61, the second valve 62 and the third valve 63 are closed, the water flow schematic diagram of fig. 3 can be obtained, and the recovery rate required by the system can be achieved by adjusting the concentrate adjusting valve 71.
The processes of fig. 2 and 3 may be alternately performed, which may actually correspond to periodic water inlet flushing, and maintenance of the membrane during operation, on the one hand, may dilute the two-stage long-term enriched contaminants to achieve partial dissolution. On the other hand, the concentration in the two sections of systems periodically fluctuates through the operation modes of S1 and S2 to dilute, wash and destroy the stable concentration polarization phenomenon in the systems, so that the pollution and blockage in the systems are avoided. Practice proves that the method effectively prolongs the cleaning frequency of the system.
As shown in fig. 4-5:
when the water inflow is small in operation or the single membrane group pollution needs short-term cleaning, the system can be in a standby mode I (figure 4) by opening the first valve 61 and the sixth valve 66, or in a standby mode II (figure 5) by opening the third valve 63 and the fourth valve 64.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (9)
1. An anti-pollution enrichment facility of high salt high difficult industrial waste water, its characterized in that: the device comprises a water inlet pipeline, a first reverse osmosis membrane group and a second reverse osmosis membrane group, wherein the first reverse osmosis membrane group comprises a first water inlet end, a first water producing end and a first water concentrating end, the second reverse osmosis membrane group comprises a second water inlet end, a second water producing end and a second water concentrating end, one section of the first water inlet end and one section of the second water inlet end are connected with the water inlet pipeline, the first water producing end and the second water producing end are connected with the water producing pipeline, and the first water concentrating end and the second water concentrating end are connected with the water concentrating pipeline; a pipeline is arranged between the first concentrated water end and the second water inlet end, and a second valve is arranged on the pipeline; and a pipeline is arranged between the second concentrated water end and the first water inlet end, and a fifth valve is arranged on the pipeline.
2. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: a first circulating pump and a first valve are arranged between the first water inlet end and the water inlet pipeline.
3. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: a second circulating pump and a fourth valve are arranged between the second water inlet end and the water inlet pipeline.
4. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: a sixth valve is arranged between the first concentrated water end and the concentrated water pipeline.
5. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: and a third valve is arranged between the second concentrated water end and the concentrated water pipeline.
6. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: the water inlet pipeline is provided with a water inlet flowmeter, a high-pressure pump and a pressure transmitter behind the pump.
7. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: and a concentrated water regulating valve and a concentrated water flowmeter are arranged on the concentrated water pipeline.
8. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: and a water production flowmeter is arranged on the water production pipeline.
9. The high-salt high-difficulty industrial wastewater anti-pollution concentration device according to claim 1, wherein: including wasing inlet channel and wasing the return channel, wasing inlet channel and wasing the return channel and all being connected with first reverse osmosis membrane group, wasing inlet channel and wasing the return channel and all being connected with the second reverse osmosis membrane group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321281959.8U CN220485404U (en) | 2023-05-25 | 2023-05-25 | High-salt high-difficulty industrial wastewater anti-pollution concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321281959.8U CN220485404U (en) | 2023-05-25 | 2023-05-25 | High-salt high-difficulty industrial wastewater anti-pollution concentration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220485404U true CN220485404U (en) | 2024-02-13 |
Family
ID=89828676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321281959.8U Active CN220485404U (en) | 2023-05-25 | 2023-05-25 | High-salt high-difficulty industrial wastewater anti-pollution concentration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220485404U (en) |
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2023
- 2023-05-25 CN CN202321281959.8U patent/CN220485404U/en active Active
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