CN220537668U - Excess sludge reinforced enzymolysis and carbon source recycling device - Google Patents
Excess sludge reinforced enzymolysis and carbon source recycling device Download PDFInfo
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- CN220537668U CN220537668U CN202321598222.9U CN202321598222U CN220537668U CN 220537668 U CN220537668 U CN 220537668U CN 202321598222 U CN202321598222 U CN 202321598222U CN 220537668 U CN220537668 U CN 220537668U
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- Prior art keywords
- enzymolysis
- cavity
- tank
- sludge
- conical cavity
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- 239000010802 sludge Substances 0.000 title claims abstract description 60
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 35
- 238000004064 recycling Methods 0.000 title claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 238000002156 mixing Methods 0.000 claims abstract description 28
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 235000015097 nutrients Nutrition 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 210000002421 cell wall Anatomy 0.000 abstract description 4
- 239000000084 colloidal system Substances 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 3
- 238000002306 biochemical method Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 6
- 239000013049 sediment Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 235000001727 glucose Nutrition 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to the technical field of environmental protection, in particular to a device for reinforcing enzymolysis and recycling carbon sources of excess sludge, which comprises the following components: the device comprises a sludge concentration tank and an ozone blending reactor which is parallel to the sludge concentration tank and communicated with the sludge concentration tank, wherein an enzymolysis reaction tank is nested inside the ozone blending reactor; the efficient sedimentation tank is communicated with the enzymolysis reaction tank; the carbon source storage tank, and an anaerobic tank and a biological nutrient solution concentration device which are respectively communicated with the efficient sedimentation tank through the carbon source storage tank. The utility model can destroy the colloid group of the sludge and the cell wall of the flora by reacting the hydroxyl radical with strong oxidability with the sludge, degrade organic matters which cannot be degraded by the traditional biochemical method and have large molecular weight, complex structure and difficult biochemical degradation, and oxidize toxic and harmful substances such as cyanide, sulfide, heavy metal and the like in the sludge.
Description
Technical Field
The utility model relates to the technical field of environmental protection, in particular to a device for reinforcing enzymolysis and recycling carbon sources of excess sludge.
Background
The activated sludge process is an aerobic biological treatment method for sewage, and the activated sludge process and its derivative improvement process are the most widely used methods in sewage treatment. However, along with the purification of sewage, the problems of sludge treatment and disposal generated by sewage treatment plants are increasingly remarkable, and many sewage treatment plants are faced with the embarrassment that sludge is difficult to dispose, and the sludge is a problem to be solved by most sewage treatment plants. The surplus sludge mainly consists of four parts, namely active microorganisms, self-oxidized residues of the microorganisms, and organic matters and inorganic matters which are attached to the surface of the active sludge and are not degraded or are difficult to degrade. The carbon sources commonly used in the market at present are methanol, acetic acid, sodium acetate, flour, glucose, biomass carbon sources, beer wastewater, landfill leachate, sludge hydrolysis supernatant and the like, the addition of an external carbon source can certainly increase the yield of sludge, the sludge treatment cost is very high, the important item which must be considered is the carbon source selection, the purchase, storage, transportation, addition and the like of the external carbon source can greatly increase the operation cost of a sewage plant, and among the above carbon sources, only the sludge hydrolysis supernatant carbon source can be directly provided by the inside of the sewage plant, and the problems in the aspects of transportation and storage of the carbon source are also reduced while the volume of sludge is reduced, so the method is a relatively advantageous carbon source acquisition way at present.
Disclosure of Invention
The utility model provides a device for reinforcing enzymolysis and recycling carbon sources of excess sludge, which can destroy colloid groups of the sludge and cell walls of flora by reacting hydroxyl radicals with strong oxidability with the sludge, degrade organic matters which cannot be degraded by the traditional biochemical method and have large molecular weight, complex structure and difficult biochemical degradation, and oxidize cyanide, sulfide, heavy metal and other toxic and harmful substances in the sludge.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an excess sludge reinforced enzymolysis and carbon source recycling device, which comprises: the device comprises a sludge concentration tank and an ozone blending reactor which is parallel to the sludge concentration tank and communicated with the sludge concentration tank, wherein an enzymolysis reaction tank is nested inside the ozone blending reactor; the efficient sedimentation tank is communicated with the enzymolysis reaction tank; the carbon source storage tank, and an anaerobic tank and a biological nutrient solution concentration device which are respectively communicated with the efficient sedimentation tank through the carbon source storage tank.
Preferably, the ozone blending reactor is provided with an outer cavity, an inner cavity and a conical cavity; the conical cavity is formed by connecting the bottom surfaces of two conical shells and comprises a conical cavity upper body and a conical cavity lower body; the side surface of the bottom of the cone cavity upper body is provided with a cone cavity water outlet, and the top of the cone cavity upper body is provided with a cone cavity water inlet; the inner cavity is formed by sleeving an inner cavity shell on the cone cavity, and the cone cavity is communicated with the inner cavity through a cone cavity water outlet hole on the side surface of the bottom of the cone cavity upper body; the outer cavity is sleeved outside the inner cavity and the conical cavity by an outer cavity shell, and the outer cavity is communicated with the inner cavity through a pipeline; the enzymolysis reaction tank is suspended and fixed in the conical cavity through a bracket.
Preferably, the top of the outer cavity is provided with an exhaust port, and the exhaust port is provided with an exhaust valve.
Preferably, the ozone blending reactor is provided with a water outlet; the enzymolysis reaction tank is provided with a water inlet, a water outlet and a feeding pipe which penetrate through the ozone blending reactor, and a homogenizing stirring device is arranged in the enzymolysis reaction tank, and the feeding pipe is connected with an enzymolysis agent feeding device; and the water inlet of the enzymolysis reaction tank is connected with the water outlet of the ozone blending reactor.
Preferably, the enzymolysis agent adding device adopts a multi-cavity dosing device with automatic blending, stirring and adding functions, and the adding point is the water inlet of the enzymolysis reaction tank.
The utility model has the beneficial effects that: the hydroxyl radical with strong oxidability reacts with sludge, so that the colloid mass of the sludge can be broken, the cell wall of flora can be broken, organic matters with large molecular weight, complex structure and difficult biochemical degradation which cannot be degraded by the traditional biochemical method can be degraded, and toxic and harmful substances such as cyanide, sulfide and heavy metal in the sludge can be oxidized. The technology can solve the problem of high treatment cost of sludge treatment by the prior art method, reasonably and resourcefully utilizes the sludge through the self sufficiency of a sewage plant, reduces the sludge and solves the problem of insufficient carbon source of the sewage plant, reduces the increase of the cost of purchasing, transporting, storing and the like of the carbon source, and effectively reduces the running cost of the sewage plant.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of an ozone blending reactor according to the present utility model.
In the figure: 1. a sludge concentration tank; 2. an ozone blending reactor; 3. an enzymolysis reaction tank; 4. an efficient sedimentation tank; 5. a carbon source storage tank; 6. an anaerobic tank; 7. a biological nutrient solution concentrating device; 8. an outer cavity; 9. an inner cavity; 10. a conical cavity; 11. a feeding pipe; 12. an enzymolysis agent adding device; 13. a homogenizing stirring device.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
According to the fig. 1 and 2, a device for reinforcing enzymolysis and recycling carbon source of excess sludge comprises: the device comprises a sludge concentration tank 1 and an ozone blending reactor 2 which is parallel to and communicated with the sludge concentration tank 1, wherein an enzymolysis reaction tank 3 is nested inside the ozone blending reactor 2; the efficient sedimentation tank 4 is communicated with the enzymolysis reaction tank 3; a carbon source storage tank 5, and an anaerobic tank 6 and a biological nutrient solution concentration device 7 which are respectively communicated with the efficient sedimentation tank 4 through the carbon source storage tank 5. The ozone blending reactor 2 is provided with an outer cavity 8, an inner cavity 9 and a conical cavity 10; the conical cavity 10 is formed by connecting the bottom surfaces of two conical shells, and comprises an upper conical cavity 10 body and a lower conical cavity 10 body; the side surface of the bottom of the upper body of the conical cavity 10 is provided with a water outlet of the conical cavity 10, and the top of the upper body of the conical cavity 10 is provided with a water inlet of the conical cavity 10; the inner cavity 9 is formed by sleeving an inner cavity 9 shell on the conical cavity 10, and the conical cavity 10 is communicated with the inner cavity 9 through a water outlet of the conical cavity 10 at the bottom side surface of the conical cavity 10; the outer cavity 8 is formed by sleeving an outer cavity 8 shell outside the inner cavity 9 and the conical cavity 10, and the outer cavity 8 is communicated with the inner cavity 9 through a pipeline; the enzymolysis reaction tank 3 is suspended and fixed in the conical cavity 10 through a bracket.
Wherein the ozone blending reactor 2 is provided with a water outlet; the enzymolysis reaction tank 3 is provided with a water inlet, a water outlet and a feeding pipe 11 which penetrate through the ozone blending reactor 2, a homogenizing stirring device 13 is arranged in the enzymolysis reaction tank 3, and the feeding pipe 11 is connected with an enzymolysis agent feeding device 12; the water inlet of the enzymolysis reaction tank 3 is connected with the water outlet of the ozone blending reactor 2. The enzymolysis agent adding device 12 adopts a multi-cavity dosing device with automatic blending, stirring and adding functions, and the adding point is the water inlet of the enzymolysis reaction tank 3.
In the sludge treatment process, pumping sludge in a sludge concentration tank 1 into an ozone blending reactor 2, and enabling ozone to generate a large amount of high-concentration hydroxyl radicals to react with the sludge under the action of the ozone blending reactor 2; the process causes a large amount of extracellular polymers on the surface of sludge flocs to be destroyed by the reaction of hydroxyl free radicals with strong oxidability with the sludge, the floc structure of the sludge is destroyed, the sludge is dispersed and disintegrated, and organic substances in the original flocs are released; the cell walls of the released organic substances are broken up and further dispersed and dissolved by oxidization, so that more floccule colloid groups in the sludge are changed into free bodies which are easy to decompose, and meanwhile, heavy metal ions in the sludge floccules and cells are dissolved out into water and are oxidized by hydroxyl radicals.
The sludge after the ozone blending reaction enters an enzymolysis reaction tank 3, a proper amount of enzymolysis agent is added at the water inlet of the enzymolysis reaction tank 3 through an enzymolysis agent adding device 12, the enzymolysis reaction tank 3 is stirred and homogenized, and the dispersed and disintegrated sludge is subjected to enzymolysis to obtain water-soluble carbohydrate under the enzymolysis action of the enzymolysis agent, and a small amount of sludge is insoluble inorganic substance or silt particles.
The mixed solution after enzymolysis is led into a high-efficiency sedimentation tank 4, water-soluble carbohydrate, insoluble inorganic matters, sediment particles and the like are layered and precipitated in the high-efficiency sedimentation tank 4, insoluble inorganic matters, sediment particles and the like are sediments, the sediments are discharged and dehydrated, the water-soluble carbohydrate is supernatant fluid, the supernatant fluid is discharged into a carbon source storage tank 5, and the carbon source in the carbon source storage tank 5 can be directly discharged into an anaerobic tank 6 for utilization or further concentrated extraction to be used as biological nutrient solution for other crops.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a surplus sludge reinforces enzymolysis and carbon source retrieval and utilization device which characterized in that includes:
the device comprises a sludge concentration tank (1) and an ozone blending reactor (2) which is parallel to and communicated with the sludge concentration tank (1), wherein an enzymolysis reaction tank (3) is nested inside the ozone blending reactor (2);
the efficient sedimentation tank (4), the efficient sedimentation tank (4) is communicated with the enzymolysis reaction tank (3);
carbon source holding vessel (5), and respectively through carbon source holding vessel (5) with high-efficient sedimentation tank (4) intercommunication anaerobism pond (6) and biological nutrient solution concentrator (7).
2. The device for reinforcing enzymolysis and recycling of carbon sources by using excess sludge according to claim 1, wherein the device is characterized in that: the ozone blending reactor (2) is provided with an outer cavity (8), an inner cavity (9) and a conical cavity (10); the conical cavity (10) is formed by connecting the bottom surfaces of two conical shells, and comprises an upper conical cavity (10) body and a lower conical cavity (10) body; the side surface of the bottom of the upper body of the conical cavity (10) is provided with a water outlet of the conical cavity (10), and the top of the upper body of the conical cavity is provided with a water inlet of the conical cavity (10); the inner cavity (9) is formed by sleeving an inner cavity (9) shell on the conical cavity (10), and the conical cavity (10) is communicated with the inner cavity (9) through a water outlet of the conical cavity (10) at the bottom side surface of the upper body of the conical cavity (10); the outer cavity (8) is formed by sleeving an outer cavity (8) shell on the inner cavity (9) and the conical cavity (10), and the outer cavity (8) is communicated with the inner cavity (9) through a pipeline; the enzymolysis reaction tank (3) is suspended and fixed in the conical cavity (10) through a bracket.
3. The device for reinforcing enzymolysis and recycling of carbon sources by using excess sludge according to claim 2, wherein the device is characterized in that: the top of the outer cavity (8) is provided with an exhaust port, and the exhaust port is provided with an exhaust valve.
4. The device for reinforcing enzymolysis and recycling of carbon sources by using excess sludge according to claim 3, wherein the device is characterized in that: the ozone blending reactor (2) is provided with a water outlet; the enzymolysis reaction tank (3) is provided with a water inlet, a water outlet and a feeding pipe (11) which penetrate through the ozone blending reactor (2), a homogenizing stirring device (13) is arranged in the enzymolysis reaction tank (3), and the feeding pipe (11) is connected with an enzymolysis agent feeding device (12); the water inlet of the enzymolysis reaction tank (3) is connected with the water outlet of the ozone blending reactor (2).
5. The device for reinforcing enzymolysis and recycling of carbon sources by using excess sludge according to claim 4, wherein the device is characterized in that: the enzymolysis agent adding device (12) adopts a multi-cavity dosing device with automatic blending, stirring and adding functions to add, and the adding point is the water inlet of the enzymolysis reaction tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321598222.9U CN220537668U (en) | 2023-06-21 | 2023-06-21 | Excess sludge reinforced enzymolysis and carbon source recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321598222.9U CN220537668U (en) | 2023-06-21 | 2023-06-21 | Excess sludge reinforced enzymolysis and carbon source recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220537668U true CN220537668U (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321598222.9U Active CN220537668U (en) | 2023-06-21 | 2023-06-21 | Excess sludge reinforced enzymolysis and carbon source recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220537668U (en) |
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2023
- 2023-06-21 CN CN202321598222.9U patent/CN220537668U/en active Active
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