CN216377588U - Disperse dye recovery system - Google Patents
Disperse dye recovery system Download PDFInfo
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- CN216377588U CN216377588U CN202122197882.3U CN202122197882U CN216377588U CN 216377588 U CN216377588 U CN 216377588U CN 202122197882 U CN202122197882 U CN 202122197882U CN 216377588 U CN216377588 U CN 216377588U
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- ceramic membrane
- membrane separation
- separation system
- disperse dye
- pipeline
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Abstract
A disperse dye recovery system belongs to the technical field of dye wastewater treatment. This disperse dye recovery system includes former water pitcher, ceramic membrane separation system, subassembly and clear liquid collection subassembly are collected to the concentrate, former water pitcher is connected through defeated material subassembly with ceramic membrane separation system, ceramic membrane separation system is equipped with the circulating line, be equipped with the circulating pump on the circulating line, the subassembly is collected with the concentrate respectively to ceramic membrane separation system output, the clear liquid is collected the subassembly and is passed through the tube coupling, it passes through ceramic membrane separation system circulation processing to last pressurize disperse dye waste water, obtain the dyestuff to the concentrate recovery processing that obtains through the separation of ceramic membrane separation system, to the clear liquid retrieval and utilization or discharge to the environment that obtain through the separation of ceramic membrane separation system. According to the utility model, the ceramic membrane filtration system is used, so that the recovery rate of the dye can be greatly improved, and the COD of the dye wastewater is reduced.
Description
Technical Field
The utility model relates to the technical field of dye wastewater treatment, in particular to a disperse dye recovery system.
Background
The disperse dye occupies a large proportion in the dye produced in China, the wastewater discharged by the step of dye coupling in the production process of the disperse dye is difficult to treat, the molecular structure of the disperse dye is mainly water-soluble-free groups and has the characteristic of deep color, COD (chemical oxygen demand) after mother liquor and washing liquor are combined exceeds 20000mg/L, if the dye in the disperse dye wastewater can be recovered in advance, the COD concentration is greatly reduced when the wastewater enters a biochemical pool, the wastewater treatment is easier on the basis, and the recovered dye can be recycled.
Chemical Oxygen Demand (COD) is an important and relatively fast measurable parameter of organic pollution, often denoted by the symbol COD, in the research of river pollution and industrial wastewater properties and in the management of wastewater treatment plants, in which the Oxygen equivalent of a substance (generally, an organic substance) that can be oxidized by a strong oxidant is measured chemically from the amount of a reducing substance to be oxidized in a water sample, wastewater treatment plant effluent and contaminated water.
The prior art has appeared some methods for recovering dye in dye wastewater by using resin, but the method has higher requirements on conditions such as pH, temperature and the like of water quality, has the defects of long adsorption time, low adsorption and desorption efficiency, short service life of resin, high recovery cost and the like, and greatly limits the recovery efficiency of dye and the treatment efficiency of dye wastewater.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a disperse dye recovery system, and the recovery rate of dye can be greatly improved by using a ceramic membrane filtration system, so that the COD of dye wastewater is reduced.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a disperse dyestuff recovery system, this disperse dyestuff recovery system includes former water pitcher, ceramic membrane piece-rate system, the subassembly is collected to concentrate and clear liquid collection subassembly, former water pitcher is connected through defeated material subassembly with ceramic membrane piece-rate system, ceramic membrane piece-rate system is equipped with the circulating line, the last circulating pump that is equipped with of circulating line, the ceramic membrane piece-rate system output is collected the subassembly with the concentrate respectively, the clear liquid is collected the subassembly and is passed through the tube coupling.
Preferably, defeated material subassembly includes the blending tank, and the blending tank is used for disperse dye waste water to mix with ceramic membrane separation system exhaust non-concentrate waste water, and the export of former water pitcher passes through the pipeline intercommunication with the blending tank import, is equipped with the conveying pump on the pipeline, and the blending tank export passes through the pipeline intercommunication with ceramic membrane separation system, is equipped with the feed pump on the pipeline, and ceramic membrane separation system passes through the pipeline intercommunication with the blending tank import.
Preferably, the mixing tanks are provided with overflow ports which are communicated with the sewage tank through pipelines.
Preferably, the ceramic membrane separation system is communicated with the clear liquid storage tank through a backwashing pipeline, and a backwashing pump is arranged on the backwashing pipeline.
Preferably, the concentrate collecting assembly comprises two concentrate intermediate tanks, the two concentrate intermediate tanks are connected through a pipeline, a concentrate pump is arranged on the pipeline, and the two concentrate intermediate tanks are arranged to improve the capacity of the system for treating large-reserve wastewater.
Preferably, the clear liquid collecting assembly comprises a clear liquid intermediate tank and a clear liquid storage tank, the clear liquid intermediate tank is connected with the clear liquid storage tank through a pipeline, and a clear liquid pump is arranged on the pipeline.
Preferably, the feeding pump and the circulating pump are driven by variable frequency motors, so that the treatment of dye wastewater with different contents is met.
The ceramic membrane separation system adopts a ceramic membrane with the precision of 2nm, can work at the temperature of 50-80 ℃ (preferably at the working temperature of 58-72 ℃) and under the water pressure of 0.3-0.45Mpa, has the working pressure of 0.1Mpa after the membrane, and has the circulating flow rate of 4-5 m/s and the flux of 109L/m when the ceramic membrane separation system carries out circulating filtration2.h。
Compared with the prior art, the utility model has the following technical effects:
the precision of the used ceramic membrane is 2nm, the preferable working temperature is 58-72 ℃, the water pressure is 0.3-0.45Mpa, and the post-membrane working pressure is 0.1 Mpa; when the ceramic membrane separation system performs circulating filtration, the circulation is performedThe flow rate is 4-5 m/s and the flux is 109L/m2H; the treated wastewater can be disperse dye wastewater with any pH value (0-14), the concentration of the feed liquid before separation is 0.025 percent, and the concentration of the feed liquid after separation is 0.5 percent;
the printing and dyeing process is cost-saving from three aspects: firstly, the ceramic membrane separation system is arranged at the front end of the printing and dyeing wastewater treatment system, so that the cost of subsequent wastewater treatment can be greatly reduced; separating the disperse dye wastewater through a ceramic membrane, realizing physical separation of the dye and the wastewater, recycling the disperse dye in the wastewater under the condition of not changing the property of the dye, simultaneously enabling the COD removal rate of the disperse dye wastewater to be not less than 95%, enabling the dye recovery rate to be not less than 80%, and saving the cost for purchasing dye raw materials; and thirdly, the discharge of dye wastewater can be greatly reduced through front-end treatment, and great environmental benefits are achieved.
Drawings
FIG. 1 is a schematic view of the system configuration of embodiment 1;
in the figure: the device comprises a raw water tank 1, a mixing tank 2, a ceramic membrane separation system 3, a concentration intermediate tank 4, a clear liquid intermediate tank 5, a clear liquid storage tank 6, a material conveying pump 7, a feeding pump 8, a circulating pump 9 and a backwashing pump 10.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and will thus define the scope of the utility model more clearly and clearly.
Referring to fig. 1, an embodiment of the present invention includes:
example 1
As shown in fig. 1, the present embodiment relates to a disperse dye recovery system, which includes a raw water tank 1, a mixing tank 2, a ceramic membrane separation system 3, a concentrated solution collection assembly, a clear solution collection assembly, and a clear solution storage tank 6; the raw water tank 1 is respectively communicated with the two mixing tanks 2 through pipelines, and the pipelines are provided with material conveying pumps 7; the discharge ports of the two mixing tanks 2 are communicated with the upper feed port of the ceramic membrane separation system 3 through pipelines, the pipelines are provided with feed pumps 8, one discharge port of the ceramic membrane separation system 3 is respectively communicated with the feed ports of the two mixing tanks 2 through pipelines, the ceramic membrane separation system 3 is also provided with a circulating pipeline for communicating the feed ports and the discharge ports of the ceramic membrane separation system, and the circulating pipeline is provided with a circulating pump 9; a discharge port on the ceramic membrane separation system 3 is communicated with the concentrated solution collection assembly through a pipeline, and a discharge port on the ceramic membrane separation system 3 is communicated with the clear solution collection assembly through a pipeline; the clear liquid storage tank 6 is communicated with the ceramic membrane separation system 3 through a back washing pipeline, and a back washing pump 10 is arranged on the pipeline to clean the ceramic membrane so that the ceramic membrane can be repeatedly used.
Two blending tanks 2 all are equipped with the overflow mouth, and the overflow mouth passes through pipeline and effluent water sump intercommunication.
The concentrated solution collecting assembly comprises two concentrated solution intermediate tanks 4, the two concentrated solution intermediate tanks 4 are connected through a pipeline, and a concentrated solution pump is arranged on the pipeline; the purpose of providing two concentrate intermediate tanks 4 is to improve the capacity of the system to handle large reserves of wastewater.
The clear liquid collecting assembly comprises a clear liquid intermediate tank 5 and a clear liquid storage tank 6, the clear liquid intermediate tank 5 is connected with the clear liquid storage tank 6 through a pipeline, and a clear liquid pump is arranged on the pipeline.
The feeding pump 8 and the circulating pump 9 are both driven by variable frequency motors, so that the treatment of dye wastewater with different contents is met.
When the disperse dye recovery system works, an operation interface is entered in a working chamber, process control parameters (such as temperature, liquid level value and the like) are written in through various parameter writing points, a start button is clicked, a ceramic membrane device is started, an exhaust valve of the device is opened, a feed pump 8 is started, then a circulating pump 9 is started, a raw water tank 1 is automatically replenished according to the flow and liquid level control of penetrating fluid, so that water drainage and replenishment are balanced (a system alarm is exceeded a set value), the device is stopped when the liquid level of the raw water tank 1 is lower than the set value, disperse dye wastewater is separated through a ceramic membrane separation system in the circulating process, clear liquid is used for reclaimed water recovery after circulating separation of a set period, and concentrated liquid is further processed to realize the recovery of dye.
According to the disperse dye recovery system, the ceramic membrane filtration system is used, so that the recovery rate of the dye can be greatly improved, and the COD of the dye wastewater is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A disperse dye recovery system is characterized in that: the ceramic membrane separation system is provided with a circulating pump, and the output end of the ceramic membrane separation system is respectively connected with the concentrated solution collection assembly and the clear solution collection assembly through pipelines.
2. A disperse dye recovery system as set forth in claim 1, wherein: defeated material subassembly includes the blending tank, and the blending tank is used for disperse dye waste water to mix with ceramic membrane separation system exhaust non-concentrate waste water, and the export of former water pitcher passes through the pipeline with the blending tank import and communicates, is equipped with defeated material pump on the pipeline, and the blending tank export passes through the pipeline with ceramic membrane separation system and communicates, is equipped with the feed pump on the pipeline, and ceramic membrane separation system passes through the pipeline with the blending tank import and communicates.
3. A disperse dye recovery system as set forth in claim 2, wherein: the mixing tanks are all provided with overflow ports, and the overflow ports are communicated with the sewage tank through pipelines.
4. A disperse dye recovery system as set forth in claim 1, wherein: the ceramic membrane separation system is communicated with the clear liquid storage tank through a backwashing pipeline, and a backwashing pump is arranged on the backwashing pipeline.
5. A disperse dye recovery system as set forth in claim 1, wherein: the concentrated solution collecting assembly comprises two concentrated solution intermediate tanks, the two concentrated solution intermediate tanks are connected through pipelines, and concentrated solution pumps are arranged on the pipelines.
6. A disperse dye recovery system as set forth in claim 1, wherein: the clear liquid collecting assembly comprises a clear liquid intermediate tank and a clear liquid storage tank, the clear liquid intermediate tank is connected with the clear liquid storage tank through a pipeline, and a clear liquid pump is arranged on the pipeline.
7. A disperse dye recovery system as set forth in claim 2, wherein: the feeding pump and the circulating pump are both driven by variable frequency motors.
8. A disperse dye recovery system as set forth in claim 1, wherein: the ceramic membrane separation system adopts a ceramic membrane with the precision of 2nm, can work under the conditions that the temperature is 50-80 ℃ and the water pressure is 0.3-0.45Mpa, the working pressure behind the membrane is 0.1Mpa, and when the ceramic membrane separation system carries out circulating filtration, the circulating flow rate is 4-5 m/s, and the flux is 109L/m2.h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197882.3U CN216377588U (en) | 2021-09-10 | 2021-09-10 | Disperse dye recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197882.3U CN216377588U (en) | 2021-09-10 | 2021-09-10 | Disperse dye recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN216377588U true CN216377588U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122197882.3U Active CN216377588U (en) | 2021-09-10 | 2021-09-10 | Disperse dye recovery system |
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| CN (1) | CN216377588U (en) |
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2021
- 2021-09-10 CN CN202122197882.3U patent/CN216377588U/en active Active
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