CN218453985U - Abnormal wastewater treatment device for benzoic acid production - Google Patents
Abnormal wastewater treatment device for benzoic acid production Download PDFInfo
- Publication number
- CN218453985U CN218453985U CN202222953920.8U CN202222953920U CN218453985U CN 218453985 U CN218453985 U CN 218453985U CN 202222953920 U CN202222953920 U CN 202222953920U CN 218453985 U CN218453985 U CN 218453985U
- Authority
- CN
- China
- Prior art keywords
- layer
- adsorption
- benzoic acid
- resin layer
- wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a benzoic acid abnormal production effluent treatment plant, through setting gradually filter equipment, adsorption equipment and protection device at the end of reaction unit, utilize the filtration unit in the filter equipment to carry out the filtering to the impurity in the waste water, utilize the adsorption unit in the adsorption equipment to adsorb the acid in the waste water, the protection device is built-in to establish alkaline absorbent and can handle the acid that is not fully adsorbed in the adsorption equipment; through the filtering action of the filtering device, the adsorption of the adsorption device and the protection device, the COD of the finally discharged water body can be ensured to meet the discharge requirement, and the pollution of the waste water generated in the production process to the environment is effectively reduced. Through the mode, the device for treating the abnormal production wastewater of the benzoic acid is simple in structure, high in treatment efficiency and simple to operate.
Description
Technical Field
The utility model relates to a waste water treatment device technical field especially relates to a benzoic acid abnormal production effluent treatment plant.
Background
Benzoic acid is a chemical product with wide application. At present, the liquid phase air oxidation method of toluene is generally adopted in industry to produce benzoic acid, the method is to introduce toluene, catalyst and air into a reactor to react at a certain reaction temperature and operation pressure, the waste water produced in the production process contains a large amount of organic acids such as formic acid, acetic acid and the like and other organic matters, the COD of the waste water reaches more than 50000, and the COD is even higher under abnormal working conditions, so that the sewage treatment device is difficult to treat.
At present, the commonly used methods for treating organic acid wastewater include a physicochemical method, a chemical oxidation method, a membrane separation technology and a biochemical method. In the prior art, a method for treating high-concentration mixed organic acid wastewater is disclosed in patent application publication No. CN102942281B, in the technical scheme, after the analytic vacuum wastewater and the refining vacuum pump wastewater are combined, a secondary flocculation precipitation-secondary membrane separation-evaporation concentration combined process route is adopted for treatment, light-phase wastewater of a centrifugal machine and concentrated water of primary membrane separation are treated by a neutralization flocculation precipitation-evaporation-membrane separation combined process route, and COD of the treated wastewater reaches national primary water discharge standard. Although the technical scheme can greatly reduce the COD value of the wastewater with high COD, the method has various types of flocculants which need to be added, and needs various filtration modes for treatment, so that the treatment process is complicated, the investment, operation and equipment maintenance cost is high, and the method has no industrial prospect.
In view of the above, there is a need for an improved wastewater treatment device for benzoic acid production to solve the problem of wastewater pretreatment during benzoic acid production.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a benzoic acid abnormal production effluent treatment plant.
In order to realize the purpose of the utility model, the utility model provides a device for treating the abnormal production wastewater of benzoic acid, which comprises a filtering device, an adsorption device and a protection device which are arranged at the tail end of a production unit in sequence, wherein the filtering device is internally provided with a filtering unit, and the adsorption device is internally provided with an alkaline adsorbent; the filtering unit and the adsorption unit are both of a hierarchical structure, and an adsorbent is arranged in the protection device.
Furthermore, the filter unit comprises a first quartz sand layer, a granular activated carbon layer and a fiber activated carbon layer which are sequentially arranged.
Further, the thickness of the filtering unit is smaller than that of the adsorbing unit.
Further, the thickness of the first quartz sand layer is larger than that of the granular activated carbon layer and that of the fiber activated carbon layer.
Further, the thickness of the granular activated carbon layer is larger than that of the fiber activated carbon layer.
Further, the adsorption unit comprises a carbonized resin layer, a strong alkaline resin layer and a macroporous adsorption resin layer which are sequentially arranged.
Further, the thickness relationship among the carbonized resin layer, the strong alkaline resin layer and the macroporous adsorption resin layer satisfies the following conditions: the carbonized resin layer > the strong alkali resin layer > the macroporous adsorption resin layer.
Further, the thickness of the carbonized resin layer is larger than that of the first quartz sand layer.
Furthermore, the tail end of the macroporous adsorption resin layer is also provided with a molecular sieve layer.
Furthermore, a second quartz sand layer is arranged at the tail end of the molecular sieve layer and used for supporting the molecular sieve layer.
The beneficial effects of the utility model are that:
the utility model provides an unusual waste water treatment device of benzoic acid through set gradually filter equipment and adsorption equipment at the reaction unit end, sets up first quartz sand layer, granule activated carbon layer and fibre activated carbon layer in the filter equipment, utilizes above-mentioned layer structure to filter the impurity in the waste water in proper order, avoids the subsequent absorption operation of impurity influence in the waste water. Meanwhile, the adsorption unit in the adsorption device is used for adsorbing acid in the wastewater, the wastewater is filtered by the filter device, and then the wastewater is adsorbed by the adsorption device, so that the working efficiency of wastewater treatment is improved; through set up different layer structures in adsorption unit and filter unit, can utilize the two adsorption and the filtering action to waste water respectively, carry out high-efficient processing to waste water, in particular, through set up the carbomorphism resin layer in adsorption unit, set up fibre activated carbon layer in filter unit, the unique adsorption efficiency of organic acid molecule in usable two to high COD value waste water, the conversion of high COD value waste water to low COD value waste water has been realized, the pollution of the waste water to the environment that the production process produced has effectively been reduced, be suitable for the industrialization and use. Through the mode, the device for treating the abnormal production wastewater of the benzoic acid, which is simple in structure, high in treatment efficiency and simple in operation, is provided.
Drawings
FIG. 1 is a schematic structural view of the wastewater treatment device for benzoic acid abnormal production of the present invention;
the reference numbers are as follows:
100. a benzoic acid abnormal production wastewater treatment device; 10. a filtration device; 20. an adsorption device; 30. and a protection device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not so related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Please refer to fig. 1, the utility model provides a benzoic acid abnormal production effluent treatment plant 100, including setting gradually at the terminal filter equipment 10 of production unit, adsorption equipment 20 and protection device 30, be equipped with the filter unit in the filter equipment 10, be equipped with the adsorption unit in the adsorption equipment 20, placed the alkaline adsorbent in the protection device 30 to handle the acid that is not fully adsorbed in the adsorption equipment 20, thereby ensure that the COD of the final water that discharges reaches the emission requirement, the water of emission is carried to the biochemical pond in.
Specifically, the filtering unit comprises a first quartz sand layer, a granular activated carbon layer and a fibrous activated carbon layer which are sequentially arranged, wherein the first quartz sand layer is used for filtering large granular impurities in the wastewater to disperse the adsorption pressure of the subsequent steps, and the granular activated carbon layer and the fibrous activated carbon layer are both used for adsorbing acid in the wastewater and controlling the flow rate of the wastewater in the filtering device 10; in particular, the thickness of the layers in the filter unit satisfies: first quartz sand layer > granule activated carbon layer > fibre activated carbon layer, so set up, can filter layer upon layer to the impurity in the waste water, effectively get rid of the impurity in the waste water, avoid impurity in the waste water to get into to lead to the fact the jam to the adsorption unit in the adsorption unit, and influence the adsorption performance of adsorption unit.
Further, the adsorption unit includes the carbomorphism resin layer, strong alkaline resin layer, macroporous adsorption resin layer, the molecular sieve layer that set gradually and is used for supporting the second quartz sand layer of above-mentioned material, and the thickness of each layer satisfies in the adsorption unit: the carbonized resin layer is larger than the strong alkaline resin layer and larger than the macroporous adsorption resin layer, the thickness of the carbonized resin layer is larger than that of the first quartz sand layer, and the thickness of the adsorption unit is larger than that of the filtration unit; with the above arrangement, the acids in the filtered wastewater can be further adsorbed by the respective hierarchical structures of the adsorption units. Through the arrangement, most of acid molecules in the wastewater can be adsorbed by the carbonized resin layer with large thickness, after the wastewater reaches the strong alkaline resin layer, the acid molecules in the wastewater are neutralized, and then under the adsorption action of the macroporous adsorption resin layer and the molecular sieve layer and the neutralization action of the protection device, the COD (chemical oxygen demand) of the wastewater can be sharply reduced, and the pollution of the wastewater to the environment is avoided.
Particularly, the wastewater treatment device for the abnormal production of benzoic acid can realize the regeneration of the wastewater treatment device by flushing the wastewater treatment device with high-temperature steam after wastewater treatment, so that the influence of acid adsorbed in the device on the treatment effect of the device after repeated use is avoided, and meanwhile, high-concentration organic wastewater generated during the regeneration of the device can be collected and treated in a centralized manner.
The utility model discloses a theory of operation: use the utility model provides a when the waste water that benzoic acid abnormal production effluent treatment plant 100 produced the production unit is handled, make waste water pass through filter equipment 10 in proper order, adsorption equipment 20 and protection device 30, in the above-mentioned process, the filtration unit in the usable filter equipment 10 filters the impurity in the waste water layer upon layer, then, utilize the acid layer in the waste water after adsorption unit and the protection device 30 among the adsorption equipment 20 with the filtration treatment to adsorb, so that the COD value of the water that finally discharges descends by a wide margin, directly change over to the standard that reaches the emission after sewage treatment device handles.
To sum up, the utility model provides a benzoic acid abnormal production effluent treatment plant 100, through set gradually filter equipment 10, adsorption equipment 20 and protection device 30 at the production unit end, utilize the filtration unit in the filter equipment 10 to filter the impurity in the waste water, utilize the adsorption unit in the adsorption equipment 20 to adsorb the acid in the waste water, the interior alkaline adsorbent that establishes of protection device 30 can handle the acid that does not fully adsorb in the adsorption equipment 20; through the filtering action of the filtering device 10 and the adsorption action of the adsorption device 20 and the protection device 30 on the acid, the COD of the finally discharged water body can be ensured to meet the discharge requirement, and the pollution of the discharged water body to the environment is reduced.
Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and equivalent arrangements can be made without departing from the spirit and scope of the present invention.
Claims (10)
1. The device for treating the abnormal production wastewater of the benzoic acid is characterized by comprising a filtering device, an adsorption device and a protection device which are sequentially arranged at the tail end of a production unit, wherein the filtering device is internally provided with a filtering unit, the adsorption device is internally provided with an adsorption unit, and the protection device is internally provided with an alkaline adsorbent;
the filtering unit and the adsorption unit are both of a hierarchical structure, and an adsorbent is arranged in the protection device.
2. The wastewater treatment device for the abnormal production of benzoic acid according to claim 1, wherein said filter unit comprises a first quartz sand layer, a granular activated carbon layer and a fiber activated carbon layer which are arranged in sequence.
3. The wastewater treatment device for the abnormal production of benzoic acid as defined in claim 1, wherein the thickness of said filtering unit is smaller than the thickness of said adsorbing unit.
4. The apparatus for treating wastewater from an abnormal production of benzoic acid according to claim 2, wherein said first quartz sand layer has a thickness greater than said granular activated carbon layer and said fibrous activated carbon layer.
5. The apparatus for treating wastewater from an abnormal production of benzoic acid according to claim 4, wherein said granular activated carbon layer has a thickness greater than that of said fibrous activated carbon layer.
6. The device for treating the wastewater from the abnormal production of benzoic acid according to claim 2, wherein the adsorption unit comprises a carbonized resin layer, a strongly alkaline resin layer and a macroporous adsorption resin layer which are arranged in sequence.
7. The wastewater treatment device for the abnormal production of benzoic acid according to claim 6, wherein the thickness relationship among the carbonized resin layer, the strong alkaline resin layer and the macroporous adsorption resin layer satisfies the following requirements: the carbonized resin layer > the strong alkali resin layer > the macroporous adsorption resin layer.
8. The wastewater treatment device for the abnormal production of benzoic acid according to claim 6, wherein the thickness of said carbonized resin layer is larger than the thickness of said first quartz sand layer.
9. The device for treating the waste water generated in the abnormal production of benzoic acid as claimed in claim 7, wherein a molecular sieve layer is further arranged at the end of the macroporous resin layer.
10. The apparatus for treating wastewater from an abnormal production of benzoic acid according to claim 9, wherein said molecular sieve layer is provided with a second quartz sand layer at the end thereof, and said second quartz sand layer is used for supporting said molecular sieve layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222953920.8U CN218453985U (en) | 2022-11-07 | 2022-11-07 | Abnormal wastewater treatment device for benzoic acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222953920.8U CN218453985U (en) | 2022-11-07 | 2022-11-07 | Abnormal wastewater treatment device for benzoic acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218453985U true CN218453985U (en) | 2023-02-07 |
Family
ID=85127406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222953920.8U Active CN218453985U (en) | 2022-11-07 | 2022-11-07 | Abnormal wastewater treatment device for benzoic acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218453985U (en) |
-
2022
- 2022-11-07 CN CN202222953920.8U patent/CN218453985U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103288295A (en) | Water treatment method and water treatment system | |
| CN101386439B (en) | Technique for processing organic wastewater by atmospheric catalytic oxidation at low-temperature | |
| CN208038252U (en) | A kind of waste water removes the device of COD | |
| CN108358395B (en) | Treatment process of pesticide production wastewater | |
| CN107935300B (en) | Process device and method for treating landfill leachate by non-membrane method | |
| CN218453985U (en) | Abnormal wastewater treatment device for benzoic acid production | |
| CN101786716B (en) | High-concentration difficult-degradation organic sewage treating system | |
| CN111115661A (en) | Nitric acid wastewater treatment system and method | |
| CN108178286B (en) | Device and method for cooperatively treating sewage and wastewater by three-dimensional electrode biomembrane and photoelectric reoxygenation | |
| CN213231883U (en) | Device for treating wastewater based on physical adsorption coupling photo-Fenton oxidation technology | |
| CN109607890A (en) | A kind of pyridine pretreatment method for wastewater | |
| CN107986578A (en) | The biogas hydrogen manufacturing circulatory system and technique of a kind of PTA sewage disposals | |
| CN212025037U (en) | System for bisphenol A waste water advanced treatment | |
| CN212025055U (en) | Electromagnetic response photocatalysis waste water processor | |
| CN211078800U (en) | System for treating regenerated waste liquid of targeted nitrogen and phosphorus removal resin | |
| CN108751573B (en) | BAME treatment and recycling method for printing and dyeing wastewater | |
| CN211170326U (en) | Device to industrial waste water advanced treatment | |
| CN213680283U (en) | Novel high-efficient biological integration sewage treatment device | |
| CN211284036U (en) | Laboratory wastewater comprehensive treatment equipment | |
| CN213446721U (en) | Sewage treatment device based on electrochemistry and biofiltration | |
| CN210825862U (en) | Treatment device for industrial high-salt and high-COD wastewater | |
| CN212655618U (en) | Comprehensive wastewater treatment device | |
| CN214693774U (en) | Garbage penetrating fluid treatment system for middle-aged and old landfill | |
| CN211111357U (en) | Advanced wastewater treatment system | |
| CN214612060U (en) | Zero-return-spraying treatment system for percolate of incineration power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |