CN220132034U - Novel combined process treatment device for treating maleic anhydride wastewater - Google Patents
Novel combined process treatment device for treating maleic anhydride wastewater Download PDFInfo
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- CN220132034U CN220132034U CN202321356701.XU CN202321356701U CN220132034U CN 220132034 U CN220132034 U CN 220132034U CN 202321356701 U CN202321356701 U CN 202321356701U CN 220132034 U CN220132034 U CN 220132034U
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- tank
- maleic anhydride
- combined process
- novel combined
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- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000011282 treatment Methods 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 title claims abstract description 19
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000004062 sedimentation Methods 0.000 claims abstract description 20
- 230000007062 hydrolysis Effects 0.000 claims abstract description 14
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 5
- 235000015097 nutrients Nutrition 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 claims 1
- 244000005700 microbiome Species 0.000 abstract description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 230000003472 neutralizing effect Effects 0.000 abstract description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 231100000614 poison Toxicity 0.000 abstract description 4
- 239000003440 toxic substance Substances 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a novel combined process treatment device for treating maleic anhydride wastewater, which comprises a hydrolysis tank and an anaerobic tank which are arranged at one time, wherein a water inlet pipe is arranged at one side of the hydrolysis tank, the outlet of the anaerobic tank is connected to an aerobic tank, the outlet of the aerobic tank is connected to a sedimentation tank, and the outlet of the sedimentation tank is connected to an internal circulation aeration biological filter; the hydrolysis tank comprises a water temperature regulating device and a substance adding device. The utility model has simple structure, adopts an integrated process, controls the reaction of each area, has high water outlet circulation ratio aiming at the removal of a large amount of organic matters in wastewater, and can dilute the concentration of toxic substances (such as ether, acrylic acid and the like) in raw water to the extent that microorganisms can bear, thereby ensuring that the microorganisms in the reactor can grow well, and the pH can be gradually adjusted to a proper range by special acid-resistant strains, thereby reducing the use of neutralizing agents and greatly reducing the running cost.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to a novel combined process treatment device for treating maleic anhydride wastewater.
Background
The maleic anhydride wastewater has the characteristics of very high COD and low pH value. The technology for treating maleic anhydride wastewater in China mainly adopts a biochemical method, and the wastewater treatment technology is to naturally degrade organic matters by utilizing the metabolism of microorganisms, and perform a series of treatments such as anaerobic tower-methane tank-air floatation, coagulating sedimentation, separation filtration and the like on the wastewater so as to finally achieve the effect of purification. At present, a plurality of chemical industry production enterprises in China adopt the method in the aspect of wastewater treatment, and remarkable results are obtained. However, the PH needs to be adjusted, a large amount of neutralizing agents are used, the operation cost is high, and the resource waste is serious.
Disclosure of Invention
The utility model aims to solve the technical problems of providing a novel combined process treatment device for treating maleic anhydride wastewater, which has a simple structure, adopts an integrated process, controls the reaction of each region, has a very high water outlet circulation ratio aiming at the removal of a large amount of organic matters in the wastewater, and can dilute the concentration of toxic substances (such as ether, acrylic acid and the like) in raw water to the extent that microorganisms can bear, thereby ensuring that the microorganisms in a reactor can grow well, and the pH can be gradually adjusted to a proper range by special acid-resistant strains, so that the use of neutralizing agents is reduced, and the running cost is greatly reduced.
In order to solve the technical problems, the utility model provides a novel combined process treatment device for treating maleic anhydride wastewater, which comprises a hydrolysis tank and an anaerobic tank which are arranged at one time, wherein one side of the hydrolysis tank is provided with a water inlet pipe, the outlet of the anaerobic tank is connected to an aerobic tank, the outlet of the aerobic tank is connected to a sedimentation tank, and the outlet of the sedimentation tank is connected to an internal circulation aeration biological filter; the hydrolysis tank comprises a water temperature regulating device and a substance adding device.
Further, the device comprises a backwash water device and a backwash gas device, wherein the backwash water device and the backwash gas device are connected to the sedimentation tank and the internal circulation aeration biological filter.
Further, a backwash pump is arranged on the backwash water device.
Further, an air compressor is arranged on the backwashing gas device.
Further, a reflux pipeline is arranged between the sedimentation tank and the anaerobic tank.
Further, a lifting pump is arranged on the water inlet pipe.
Further, the substance adding device adds nutrient substances and acid-resistant strains.
Further, the aerobic tank comprises elastic three-dimensional filler.
The utility model has the beneficial effects that: 1. by adopting an integrated process, the reaction of each area is controlled, and the method has a very high water outlet circulation ratio aiming at removing a large amount of organic matters in wastewater, and can dilute the concentration of toxic substances (such as ether, acrylic acid and the like) in raw water to the extent that microorganisms can bear, thereby ensuring that the microorganisms in the reactor can grow well. The pH can be gradually adjusted to a proper range by special acid-resistant strains, so that the use of neutralizing agents is reduced, and the running cost is greatly reduced.
2. Considering that the wastewater has higher salinity, the high salinity can cause the problems of microbial disintegration and sedimentation performance reduction, further causes the turbidity of effluent of a biological treatment system and the like, the wastewater is subjected to anaerobic treatment (an anaerobic tank) and then is subjected to aerobic treatment by adopting a contact oxidation method (an aerobic tank) so as to further decompose organic matters in the wastewater, and the aerobic tank adopts elastic three-dimensional filler so as to improve the concentration of aerobic microorganisms.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to FIG. 1, an embodiment of a novel combined process treatment device for treating maleic anhydride wastewater comprises a hydrolysis tank and an anaerobic tank which are arranged at one time, wherein one side of the hydrolysis tank is provided with a water inlet pipe, the outlet of the anaerobic tank is connected to an aerobic tank, the aerobic tank comprises elastic three-dimensional filler, the outlet of the aerobic tank is connected to a sedimentation tank, and the outlet of the sedimentation tank is connected to an internal circulation aeration biological filter; the hydrolysis tank comprises a water temperature regulating device and a substance adding device, wherein the substance adding device is used for adding nutrient substances and acid-resistant strains.
The device comprises a backwash water device and a backwash gas device, wherein the backwash water device and the backwash gas device are both connected to the sedimentation tank and the internal circulation aeration biological filter, a backwash pump is arranged on the backwash water device, and an air compressor is arranged on the backwash gas device.
And a reflux pipeline is arranged between the sedimentation tank and the anaerobic tank, so that liquid obtained by solid-liquid separation in the sedimentation tank can be introduced into the anaerobic tank for recycling, and the cost is saved to form a circulating channel.
The water inlet pipe is provided with a lifting pump for providing power for the wastewater to enter the hydrolysis tank.
When the device is used, the wastewater is lifted to a hydrolysis tank by a lifting pump, water temperature regulation and control are carried out, nutrient substances are added, acid-resistant strains are added, and the PH can be raised to 5-6 at the stage; then the wastewater automatically flows into an anaerobic tank for anaerobic treatment, and the PH can be raised to 6-7; then carrying out aerobic treatment in an aerobic tank, wherein the PH can be raised to 7-8; after the effluent of the aerobic tank is precipitated by the secondary sedimentation tank, the effluent enters an internal circulation biological aerated filter (BAF for short), and is treated by BAF, the effluent is discharged after reaching the standard, and the internal circulation BAF forms large circulation water flow in a filling area through aeration and is matched with a high-efficiency active biochemical filter material, so that the contact efficiency of sewage and microorganisms is increased, pollutants are further oxidized and removed, and the sewage is discharged after reaching the standard.
And the sedimentation tank and the internal circulation BAF tank need to be cleaned regularly (adopting a gas-water two-dimensional pulse back flushing technology) to respectively remove the residual sludge generated by biochemistry.
The advantages are as follows: by adopting an integrated process, the reaction of each area is controlled, and the method has a very high water outlet circulation ratio aiming at removing a large amount of organic matters in wastewater, and can dilute the concentration of toxic substances (such as ether, acrylic acid and the like) in raw water to the extent that microorganisms can bear, thereby ensuring that the microorganisms in the reactor can grow well. The pH can be gradually adjusted to a proper range by special acid-resistant strains, so that the use of neutralizing agents is reduced, and the running cost is greatly reduced.
2. Considering that the wastewater has higher salinity, the high salinity can cause the problems of microbial disintegration and sedimentation performance reduction, further causes the turbidity of effluent of a biological treatment system and the like, the wastewater is subjected to anaerobic treatment (an anaerobic tank) and then is subjected to aerobic treatment by adopting a contact oxidation method (an aerobic tank) so as to further decompose organic matters in the wastewater, and the aerobic tank adopts elastic three-dimensional filler so as to improve the concentration of aerobic microorganisms.
The above-described embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model. The protection scope of the utility model is subject to the claims.
Claims (8)
1. The novel combined process treatment device for treating maleic anhydride wastewater is characterized by comprising a hydrolysis tank and an anaerobic tank which are arranged at one time, wherein a water inlet pipe is arranged on one side of the hydrolysis tank, an outlet of the anaerobic tank is connected to an aerobic tank, an outlet of the aerobic tank is connected to a sedimentation tank, and an outlet of the sedimentation tank is connected to an internal circulation aeration biological filter;
the hydrolysis tank comprises a water temperature regulating device and a substance adding device.
2. The novel combined process treatment device for treating maleic anhydride wastewater according to claim 1, which comprises a backwash water device and a backwash gas device, wherein the backwash water device and the backwash gas device are connected to the sedimentation tank and the internal circulation biological aerated filter.
3. The novel combined process treatment device for treating maleic anhydride wastewater according to claim 2, wherein a backwash pump is arranged on the backwash water device.
4. The novel combined process treatment device for treating maleic anhydride wastewater according to claim 2, wherein an air compressor is arranged on the backwashing gas device.
5. The novel combined process treatment device for treating maleic anhydride wastewater according to claim 1, wherein a reflux pipeline is arranged between the sedimentation tank and the anaerobic tank.
6. The novel combined process treatment device for treating maleic anhydride wastewater according to claim 1, wherein a lifting pump is arranged on the water inlet pipe.
7. The novel combined process treatment device for treating maleic anhydride wastewater according to claim 1, wherein the substance adding device adds nutrient substances and acid-resistant bacteria.
8. The novel combined process treatment device for treating maleic anhydride wastewater according to claim 1, wherein the aerobic tank comprises elastic three-dimensional filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321356701.XU CN220132034U (en) | 2023-05-31 | 2023-05-31 | Novel combined process treatment device for treating maleic anhydride wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321356701.XU CN220132034U (en) | 2023-05-31 | 2023-05-31 | Novel combined process treatment device for treating maleic anhydride wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220132034U true CN220132034U (en) | 2023-12-05 |
Family
ID=88948768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321356701.XU Active CN220132034U (en) | 2023-05-31 | 2023-05-31 | Novel combined process treatment device for treating maleic anhydride wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220132034U (en) |
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2023
- 2023-05-31 CN CN202321356701.XU patent/CN220132034U/en active Active
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