CN210855655U - Adsorption resin regeneration recycling system - Google Patents
Adsorption resin regeneration recycling system Download PDFInfo
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- CN210855655U CN210855655U CN201921505372.4U CN201921505372U CN210855655U CN 210855655 U CN210855655 U CN 210855655U CN 201921505372 U CN201921505372 U CN 201921505372U CN 210855655 U CN210855655 U CN 210855655U
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Abstract
The present disclosure discloses an adsorption resin regeneration and reuse system, including: the device comprises a waste water collecting pool, a filter, a resin adsorption tower, a distillation tower, an alcohol recovery pool and a regenerated liquid storage tank. According to the method, the waste regeneration liquid generated after resin desorption regeneration is distilled to obtain alcohol, and the alcohol flows back to the resin adsorption tower for cyclic utilization, so that the environmental hazard is reduced, and the process cost is reduced.
Description
Technical Field
The disclosure belongs to the field of sewage treatment, and particularly relates to an adsorption resin regeneration and reuse system.
Background
The industrial wastewater is often a wastewater which has high toxicity, complex components, high chemical oxygen consumption, poor biodegradability and difficult treatment, and is usually deeply treated by adopting a two-stage biochemical-advanced oxidation mode, but partial organic matters still remain after treatment, and a subsequent treatment unit is required to be added to ensure that the wastewater reaches the standard and is discharged. The resin adsorption advanced treatment wastewater has the advantages of strong selectivity, high adsorption efficiency, low cost, simple regeneration, no secondary pollution and the like, when the resin is saturated in adsorption, the resin needs to be subjected to desorption regeneration treatment to recover the adsorption capacity, and the general treatment method comprises the following steps: when the pollution is serious, acid and alkali are adopted for regeneration; when the pollution is not serious, the treatment is carried out by using a reagent such as methanol, ethanol or acetone. However, the waste regeneration liquid generated after the regeneration of the resin is basically disposed of, which causes a certain waste, and in addition, from the viewpoint of environmental protection, if the waste regeneration liquid can be purified and recycled, the effect of saving resources can be achieved.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present disclosure is to provide an adsorption resin regeneration and recycling system, wherein a waste regeneration liquid generated after desorption and regeneration of an adsorption resin is distilled to obtain an alcohol, and the alcohol is refluxed to a resin adsorption tower for cyclic regeneration.
In order to achieve the above purpose, the present disclosure provides the following technical solutions:
an adsorption resin regeneration and reuse system, comprising: the device comprises a waste water collecting pool, a filter, a resin adsorption tower, a distillation tower, an alcohol recovery pool and a regenerated liquid storage tank; wherein,
the output end of the wastewater collecting pool is connected to the input end of the filter through a filter water inlet pipe;
the output end of the filter is connected to the first input end of the resin adsorption tower through a water inlet pipe of the resin adsorption tower;
the resin adsorption tower also comprises a second input end which is connected with the output end of the regenerated liquid storage tank through a regenerated liquid inlet pipe and is used for receiving the regenerated liquid to perform desorption regeneration on the resin after adsorption saturation,
the resin adsorption tower also comprises a first output end which is connected to the input end of the distillation tower through a waste regeneration liquid drain pipe and is used for discharging waste regeneration liquid generated by resin through regeneration liquid desorption and regeneration,
the resin adsorption tower also comprises a second output end, and the second output end is connected to a drainage pipe of the resin adsorption tower and is used for discharging the wastewater subjected to resin adsorption treatment;
the first output end of the distillation tower is connected to the input end of the alcohol recovery tank through a distillate drain pipe and is used for discharging alcohol obtained by distilling waste regeneration liquid,
the second output end of the distillation tower is connected to a residue discharge pipe and is used for discharging residues generated in the distillation process of the waste regeneration liquid;
the output end of the alcohol recovery tank is connected to the regenerated liquid inlet pipe through a return pipe to form a recycling system, and the recycling system is used for returning the recovered alcohol to the resin adsorption tower.
Preferably, a lifting pump is arranged between the wastewater collection tank and the filter and used for lifting the wastewater in the wastewater collection tank into the filter.
Preferably, a circulating pump is arranged between the alcohol recovery tank and the regeneration liquid water inlet pipe and used for pumping the alcohol recovered in the alcohol recovery tank into the regeneration liquid water inlet pipe.
Preferably, the filter comprises any one of: self-cleaning filters, fully automatic filters, brush filters and elastic filters.
Preferably, the filter has a filter diameter of less than 1 um.
Preferably, the regeneration liquid comprises any one of the following: methanol solution, ethanol solution and mixed solution of the methanol solution and the ethanol solution.
Preferably, the resin in the resin adsorption tower is macroporous adsorption resin.
Compared with the prior art, the beneficial effect that this disclosure brought does: through distilling the waste regeneration liquid generated by resin desorption regeneration, the obtained alcohol flows back to the resin adsorption tower, so that on one hand, the situation that the environment is possibly damaged by directly discharging the waste regeneration liquid is avoided, on the other hand, the alcohol can be recycled, and the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of an adsorption resin regeneration and reuse system provided by the present disclosure.
Wherein the symbols in the figure are as follows:
1. a wastewater collection tank; 2. a lift pump; 3. a water inlet pipe of the filter; 4. a filter; 5. a water inlet pipe of the resin adsorption tower; 6. a resin adsorption tower; 7. a waste regenerated liquid drain pipe; 8. a resin adsorption tower drain pipe; 9. a distillation column; 10. a distillate drain pipe; 11. a slag discharge pipe; 12. an alcohol recovery tank; 13. a return pipe; 14. a circulation pump; 15. a regenerated liquid storage tank; 16. a regenerated liquid inlet pipe.
Detailed Description
The technical solution of the present disclosure is described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, an adsorption resin regeneration and reuse system includes: a wastewater collection tank 1, a filter 4, a resin adsorption tower 6, a distillation tower 9, an alcohol recovery tank 12 and a regenerated liquid storage tank 15; wherein,
the output end of the wastewater collecting tank 1 is connected to the input end of the filter 4 through a filter water inlet pipe 3;
the output end of the filter 4 is connected to the first input end of the resin adsorption tower 6 through a resin adsorption tower water inlet pipe 5;
the resin adsorption tower 6 further comprises a second input end, the second input end is connected with the output end of the regenerated liquid storage tank 15 through a regenerated liquid inlet pipe 16 and is used for receiving regenerated liquid to perform desorption regeneration on the resin after adsorption saturation,
the resin adsorption tower 6 also comprises a first output end which is connected to the input end of the distillation tower 9 through a waste regeneration liquid drain pipe 7 and is used for discharging waste regeneration liquid generated by resin through regeneration liquid desorption and regeneration,
the resin adsorption tower 6 further comprises a second output end, and the second output end is connected to a resin adsorption tower drain pipe 8 and used for discharging the wastewater subjected to resin adsorption treatment;
a first output end of the distillation tower 9 is connected to an input end of the alcohol recovery tank 12 through a distillate drain pipe 10, and is used for discharging alcohol obtained by distilling waste regeneration liquid,
a second output end of the distillation tower 9 is connected to a residue discharge pipe 11 for discharging residues generated in the distillation process of the waste regeneration liquid;
the output end of the alcohol recovery tank 12 is connected to the regenerated liquid inlet pipe 16 through a return pipe 13 to form a recycling system, and the recycling system is used for returning the recovered alcohol to the resin adsorption tower 6.
In the above embodiment, the wastewater enters the wastewater collection tank 1, the wastewater is lifted into the filter 4 through the filter inlet pipe 3 by the lift pump 2, and the filter 4 intercepts and removes some fine suspended matters in the wastewater and then flows into the resin adsorption tower 6 through the resin adsorption tower inlet pipe 5. The resin adsorption tower 6 adsorbs refractory organics contained in the wastewater through resin, thereby achieving the effect of purifying the wastewater. The waste water after resin adsorption and purification is discharged from a water discharge pipe 8 of the resin adsorption tower. When the resin capacity in the resin adsorption tower 6 is saturated, after the wastewater in the resin adsorption tower 6 is completely discharged, a water inlet valve and a water outlet valve of the resin adsorption tower 6 are closed, then a regenerated liquid storage tank 15 is opened, the regenerated liquid is conveyed into the resin adsorption tower 6 from a regenerated liquid inlet pipe 16 to be used as a regenerant to perform desorption regeneration on the resin, the generated waste regenerated liquid is conveyed into a distillation tower 9 through a waste regenerated liquid drain pipe 7 to be distilled, residues generated by distillation are discharged through a residue discharge pipe 11, alcohol obtained by distillation enters an alcohol recovery tank 12 through a distillate drain pipe 10, and then is pumped into a regenerated liquid inlet pipe 16 through a return pipe 13 by a circulating pump 14, and enters the resin adsorption tower 6 together with new regenerated liquid stored in the regenerated liquid storage tank 15 to be used as the regenerant to perform desorption regeneration on the resin again.
Different from the prior art: the above embodiment does not directly discharge the waste regeneration liquid generated by desorption regeneration to the surrounding environment, but creatively distills the waste regeneration liquid through the distillation tower to recover the alcohol contained therein, and reflows the recovered alcohol to the resin adsorption tower for recycling. As can be understood by those skilled in the art, the recycling can avoid the damage to the environment caused by direct discharge of the waste regeneration liquid, improve the utilization rate of alcohol, reduce the usage amount of new regenerant and save the process cost.
In another embodiment, a lift pump 2 is disposed between the wastewater collection tank 1 and the filter 4, and is used for lifting the wastewater in the wastewater collection tank 1 to the filter 4.
In another embodiment, a circulation pump 14 is disposed between the alcohol recovery tank 12 and the regeneration liquid inlet pipe 16, and is used for pumping the alcohol recovered in the alcohol recovery tank 12 into the regeneration liquid inlet pipe 16.
In order to recycle the alcohol obtained by distilling the waste regeneration liquid, the embodiment particularly recovers the alcohol, and the recovered alcohol is returned to the regeneration liquid inlet pipe 16 through the circulating pump and the return pipe, and is mixed with the new regeneration liquid to be used as the regenerant to desorb and regenerate the resin again, so that the waste is avoided, and the using amount of the new regeneration liquid is also saved. This is a technical contribution made by the present embodiment compared to the prior art.
In another embodiment, the filter 4 comprises any one of: self-cleaning filters, fully automatic filters, brush filters and elastic filters.
In this embodiment, can intercept the impurity of aquatic through the filter, get rid of suspended solid, particulate matter in the water, reduce the turbidity, water purification reduces system's dirt, fungus algae, corrosion etc. and produces to reach water purification purpose. The filters of the above types are widely used in various fields, and each filter has advantages and disadvantages, and which filter is specifically selected needs to be determined according to actual application conditions, and will not be described herein again.
In another embodiment, the filter has a filter diameter of less than 1 um.
In another embodiment, the regeneration fluid comprises any one of: methanol solution, ethanol solution and mixed solution of the methanol solution and the ethanol solution.
In another embodiment, the resin in the resin adsorption tower is a macroporous adsorption resin.
The macroporous adsorption resin is preferably used for adsorbing wastewater in this embodiment because the macroporous adsorption resin is a polymeric adsorption resin having a good macroporous network structure and a large specific surface area, and can selectively physically adsorb organic substances in an aqueous solution by virtue of van der Waals attraction between the macroporous adsorption resin and adsorbed molecules (adsorbates).
The above-described embodiments are merely illustrative of the principles of the present disclosure. It is to be understood that modifications and variations of the arrangements and details described herein will be apparent to those skilled in the art. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto, and not by the specific details presented by way of the description and illustration of the embodiments presented herein.
Claims (7)
1. An adsorption resin regeneration and reuse system, comprising: the device comprises a waste water collecting pool, a filter, a resin adsorption tower, a distillation tower, an alcohol recovery pool and a regenerated liquid storage tank; wherein,
the output end of the wastewater collecting pool is connected to the input end of the filter through a filter water inlet pipe;
the output end of the filter is connected to the first input end of the resin adsorption tower through a water inlet pipe of the resin adsorption tower;
the resin adsorption tower also comprises a second input end which is connected with the output end of the regenerated liquid storage tank through a regenerated liquid inlet pipe and is used for receiving the regenerated liquid to perform desorption regeneration on the resin after adsorption saturation,
the resin adsorption tower also comprises a first output end which is connected to the input end of the distillation tower through a waste regeneration liquid drain pipe and is used for discharging waste regeneration liquid generated by resin through regeneration liquid desorption and regeneration,
the resin adsorption tower also comprises a second output end, and the second output end is connected to a drainage pipe of the resin adsorption tower and is used for discharging the wastewater subjected to resin adsorption treatment;
the first output end of the distillation tower is connected to the input end of the alcohol recovery tank through a distillate drain pipe and is used for discharging alcohol obtained by distilling waste regeneration liquid,
the second output end of the distillation tower is connected to a residue discharge pipe and is used for discharging residues generated in the distillation process of the waste regeneration liquid;
the output end of the alcohol recovery tank is connected to the regenerated liquid inlet pipe through a return pipe to form a recycling system, and the recycling system is used for returning the recovered alcohol to the resin adsorption tower.
2. The system of claim 1, wherein a lift pump is disposed between the wastewater collection basin and the filter for lifting wastewater in the wastewater collection basin to the filter.
3. The system of claim 1, wherein a circulation pump is disposed between the alcohol recovery tank and the regeneration liquid inlet pipe for pumping the alcohol recovered in the alcohol recovery tank into the regeneration liquid inlet pipe.
4. The system of claim 1, wherein the filter comprises any one of: self-cleaning filters, fully automatic filters, brush filters and elastic filters.
5. The system of claim 1 or 4, wherein the filter has a filter diameter of less than 1 um.
6. The system of claim 1, wherein the regeneration fluid comprises any of: methanol solution, ethanol solution and mixed solution of the methanol solution and the ethanol solution.
7. The system of claim 1, wherein the resin in the resin adsorption column is a macroporous adsorbent resin.
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| CN201921505372.4U CN210855655U (en) | 2019-09-10 | 2019-09-10 | Adsorption resin regeneration recycling system |
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| CN201921505372.4U CN210855655U (en) | 2019-09-10 | 2019-09-10 | Adsorption resin regeneration recycling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114835322A (en) * | 2022-04-25 | 2022-08-02 | 西安建筑科技大学 | System and method for recovering phenol and regenerating resin in coal chemical industry wastewater |
| CN118851096A (en) * | 2024-08-06 | 2024-10-29 | 上海联风气体有限公司 | Method for recovering electronic grade hydrofluoric acid |
-
2019
- 2019-09-10 CN CN201921505372.4U patent/CN210855655U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114835322A (en) * | 2022-04-25 | 2022-08-02 | 西安建筑科技大学 | System and method for recovering phenol and regenerating resin in coal chemical industry wastewater |
| CN118851096A (en) * | 2024-08-06 | 2024-10-29 | 上海联风气体有限公司 | Method for recovering electronic grade hydrofluoric acid |
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