CN219839605U - Sewage biochemical treatment system - Google Patents
Sewage biochemical treatment system Download PDFInfo
- Publication number
- CN219839605U CN219839605U CN202321108304.0U CN202321108304U CN219839605U CN 219839605 U CN219839605 U CN 219839605U CN 202321108304 U CN202321108304 U CN 202321108304U CN 219839605 U CN219839605 U CN 219839605U
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- China
- Prior art keywords
- tank
- chain
- air floatation
- treatment system
- wheels
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- 239000010865 sewage Substances 0.000 title claims abstract description 28
- 230000003647 oxidation Effects 0.000 claims abstract description 14
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 14
- 238000004062 sedimentation Methods 0.000 claims abstract description 5
- 238000007790 scraping Methods 0.000 claims description 40
- 239000002893 slag Substances 0.000 claims description 35
- 239000007921 spray Substances 0.000 claims description 17
- 239000013013 elastic material Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 21
- 239000011574 phosphorus Substances 0.000 abstract description 21
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 21
- 241000894006 Bacteria Species 0.000 abstract description 7
- 239000004519 grease Substances 0.000 abstract description 7
- 235000014113 dietary fatty acids Nutrition 0.000 abstract description 6
- 239000000194 fatty acid Substances 0.000 abstract description 6
- 229930195729 fatty acid Natural products 0.000 abstract description 6
- 150000004665 fatty acids Chemical class 0.000 abstract description 6
- 239000010842 industrial wastewater Substances 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Removal Of Floating Material (AREA)
Abstract
The utility model discloses a sewage biochemical treatment system which comprises an oxidation ditch and a secondary sedimentation tank which are sequentially communicated, wherein an anaerobic tank is arranged at the front side of the oxidation ditch, an air floatation tank is arranged at the front side of the anaerobic tank, and a coarse grid is arranged at the inlet end of the air floatation tank. After the sewage is filtered by the coarse grille, the sewage enters an air floatation tank, part of grease in the industrial wastewater is removed by the air floatation tank, the rest grease enters an anaerobic tank, and the anaerobic tank plays a role of a biological selector for absorbing easily-degradable organic matters such as low-grade fatty acid and the like. The sewage is absorbed by low-grade fatty acid and other easily-degradable organic matters in the anaerobic tank, and after phosphorus is released by phosphorus accumulating bacteria, the sewage enters an aerobic section of an oxidation ditch, the phosphorus accumulating bacteria absorbs the phosphorus in an excessive way, and the phosphorus is removed through the discharge of residual sludge, so that the phosphorus removal rate is improved.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to a sewage biochemical treatment system.
Background
With the continuous improvement of living standard, water eutrophication is widely concerned, and main elements causing the eutrophication are ammonia and phosphorus. Because a large amount of pesticides, fertilizers and phosphorus-containing detergents are used in the production and the life of people, the river water quality is deteriorated.
The sources of current treatment water for my department are: domestic sewage and part of industrial wastewater. The existing secondary biochemical treatment process adopts an oxidation ditch and a secondary sedimentation tank for treatment, the treatment effect is not ideal, the chemical agent PAC still needs to be added in the follow-up process, the additional cost of the agent is needed, and the normal growth of the activated sludge can be damaged due to the long-term addition or improper addition amount, so that the water quality of the effluent is influenced.
Disclosure of Invention
The utility model mainly aims to provide a sewage biochemical treatment system, wherein an anaerobic tank is additionally arranged at the front end of an oxidation ditch, so that the phosphorus removal rate is improved, and the phenomenon that filiform bacteria expand due to the fact that grease in industrial wastewater enters the oxidation ditch is avoided.
According to a first aspect of the utility model, a sewage biochemical treatment system is provided, which comprises an oxidation ditch and a secondary sedimentation tank which are sequentially communicated, wherein an anaerobic tank is arranged at the front side of the oxidation ditch, an air floatation tank is arranged at the front side of the anaerobic tank, and a coarse grid is arranged at the inlet end of the air floatation tank.
In a specific embodiment of the utility model, a slag scraping machine is arranged on the air floatation tank, the slag scraping machine comprises a mounting frame, a first motor is arranged on the mounting frame, a first rotating shaft is arranged on the first motor, two first chain wheels are arranged on the first rotating shaft, two second chain wheels are arranged on the mounting frame, a slag scraping chain is arranged between the first chain wheels and the corresponding second chain wheels, at least one slag scraping plate is arranged between the two slag scraping chains, elastic material widening scraping plates are arranged on two sides of the slag scraping plate, and the elastic material widening scraping plates can be in contact with the inner wall of the air floatation tank.
In a specific embodiment of the utility model, the slag scraping plate is provided with a mounting groove, the elastic material widening scraping plate is provided with an embedded part capable of being embedded into the mounting groove, and the embedded part is fixed on the slag scraping plate through a fastening bolt and a fastening nut.
In a specific embodiment of the utility model, each slag scraping chain comprises an upper chain and a lower chain wound between a first chain wheel and a second chain wheel, a cleaning system is arranged between the upper chain and the lower chain, the cleaning system comprises at least one spray head, and the water outlet of the spray head faces to the lower chain or/and the upper chain.
In a specific embodiment of the utility model, the cleaning system comprises at least one liquid distribution pipe, the spray head is arranged on the liquid distribution pipe, and the liquid distribution pipe is provided with an external pipe externally connected with a high-pressure water source.
In a specific embodiment of the utility model, the mounting frame is provided with two front travelling wheels and two rear travelling wheels, the mounting frame is provided with a second motor, the second motor is provided with a second rotating shaft, the two rear travelling wheels are arranged on the second rotating shaft, and the front travelling wheels and the rear travelling wheels travel along the track of the air floatation tank.
In a particular embodiment of the utility model, the two front road wheels are connected by a first connecting shaft and the two second chain wheels are connected by a second connecting shaft.
In a specific embodiment of the present utility model, the resilient material widening scraper is a plastic member or a silicone member.
One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects: according to the utility model, the anaerobic tank is additionally arranged, sewage is filtered through the coarse grating and then enters the air flotation tank, part of grease in industrial wastewater is removed from the air flotation tank, the rest grease enters the anaerobic tank, and the anaerobic tank plays a role of a biological selector in absorbing low-grade fatty acid and other easily-degradable organic matters. The sewage is absorbed by low-grade fatty acid and other easily-degradable organic matters in the anaerobic tank, and after phosphorus is released by phosphorus accumulating bacteria, the sewage enters an aerobic section of an oxidation ditch, the phosphorus accumulating bacteria absorbs the phosphorus in an excessive way, and the phosphorus is removed through the discharge of residual sludge, so that the phosphorus removal rate is improved. The utility model is suitable for treating domestic sewage and part of industrial wastewater.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a schematic diagram of the structure of one embodiment of the present utility model;
FIG. 2 is a front view of a slag scraper in one embodiment of the utility model;
FIG. 3 is a top view of a slag scraper in one embodiment of the utility model;
fig. 4 is a schematic view showing a connection structure of the scum plate and the elastic material widening blade in one embodiment of the present utility model.
Description of the embodiments
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
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, features defining "first" and "second" may explicitly or implicitly include one or more features.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection or an active connection, or it may be a detachable connection or a non-detachable connection, or it may be an integral connection; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements, indirect communication or interaction relationship between the two elements.
The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.
Referring to fig. 1 to 4, the sewage biochemical treatment system includes an oxidation ditch 100 and a secondary sedimentation tank 200 which are sequentially communicated, an anaerobic tank 300 is disposed at the front side of the oxidation ditch 100, an air floatation tank 400 is disposed at the front side of the anaerobic tank 300, and a coarse grid 500 is disposed at the inlet end of the air floatation tank 400.
After the sewage is filtered by the coarse grille 500, the sewage enters the air floatation tank 400, part of grease in the industrial sewage is removed by the air floatation tank 400, the rest grease enters the anaerobic tank 300, and easily-degradable organic matters such as low-grade fatty acid and the like are absorbed, and the anaerobic tank 300 plays a role of a biological selector. The sewage is absorbed by low-grade fatty acid and other easily degradable organic matters in the anaerobic tank 300, and after phosphorus is released by phosphorus accumulating bacteria, the sewage enters the aerobic section of the oxidation ditch 100, the phosphorus accumulating bacteria absorbs the phosphorus in an excessive way, and the phosphorus is removed through the discharge of residual sludge, so that the removal rate of the phosphorus is improved.
In one embodiment of the utility model, a slag scraping machine is arranged on the air floatation tank 400, the slag scraping machine comprises a mounting frame 10, a first motor 11 is arranged on the mounting frame 10, a first rotating shaft is arranged on the first motor 11, two first chain wheels 12 are arranged on the first rotating shaft, two second chain wheels 13 are arranged on the mounting frame 10, a slag scraping chain 14 is arranged between the first chain wheels 12 and the corresponding second chain wheels 13, at least one slag scraping plate 15 is arranged between the two slag scraping chains 14, elastic material widening scraping plates 16 are arranged on two sides of the slag scraping plate 15, and the elastic material widening scraping plates 16 can be in contact with the inner wall of the air floatation tank 400. Preferably, the elastic material widening scraper 16 is a plastic member or a silica gel member, so as to avoid hard contact between the scraper and the inner wall of the air floatation tank 400. It should be noted that the two ends of the elastic material widening scraper 16 extend below the slag scraping chain 14, so that the elastic material widening scraper 16 can contact with the inner wall of the air floatation tank 400.
When the scraper blade 16 is used, the elastic material widening scraper blade 16 can be in direct contact with the pool wall, residues accumulated on two sides of the scraper blade can be easily scraped away, and the problem of poor residue scraping effect is solved.
In one embodiment of the present utility model, the slag scraping plate 15 is provided with a mounting groove, and the elastic material widening scraper 16 is provided with an embedded part capable of being embedded into the mounting groove, and the embedded part is fixed on the slag scraping plate 15 through a fastening bolt 17 and a fastening nut 18.
In one embodiment of the present utility model, each of the slag scraping chains 14 includes an upper chain and a lower chain wound between the first sprocket 12 and the second sprocket 13, and a cleaning system is disposed between the upper chain and the lower chain, and the cleaning system includes at least one spray head 23, and a water outlet of the spray head 23 faces the lower chain or/and the upper chain. The spray head 23 is externally connected with a high-pressure water source, and the high-pressure water is sprayed to the chain from the spray head 23 to clean the chain, so that the fault rate of the slag scraping machine is reduced. In one embodiment of the present utility model, the cleaning system includes at least one liquid distribution pipe 22, the spray head 23 is disposed on the liquid distribution pipe 22, and the liquid distribution pipe 22 is provided with an external pipe 24 connected with a high-pressure water source. The spray head 23 is connected with a high-pressure water source through the liquid distribution pipe 22, and the high-pressure water is sprayed to the chain from the spray head 23 to clean the chain, so that the fault rate of the slag scraping machine is reduced. Of course, the liquid distribution pipe 22 may be provided with a plurality of spray heads 23, and the spray heads 23 are arranged along the moving direction of the chain or the slag scraping plate 15, so that the same position of the chain can be sprayed by the spray heads 23.
In one embodiment of the present utility model, the mounting frame 10 is provided with two front travelling wheels 21 and two rear travelling wheels 20, the mounting frame 10 is provided with a second motor 19, the second motor 19 is provided with a second rotating shaft, the two rear travelling wheels 20 are mounted on the second rotating shaft, and the front travelling wheels 21 and the rear travelling wheels 20 travel along the track of the air floatation tank 400. To increase the slag scraping stroke of the slag scraper, the mounting frame 10 walks on rails on both sides of the air bearing pool 400 through the front traveling wheels 21 and the rear traveling wheels 20. Specifically, the travelling of the mounting frame 10 and the movement of the slag scraping plate 15 adopt two independent driving mechanisms, and the two driving mechanisms work alternately through electric control and mutual conversion. The high-pressure water is sprayed from the spray head 23 to the rail and the chain to clean the rail and the chain, so that the fault rate of the slag scraping machine is reduced.
In one embodiment of the present utility model, the two front traveling wheels 21 are connected by the first connecting shaft 25 such that the two front traveling wheels 21 rotate synchronously, and the two second sprockets 13 are connected by the second connecting shaft 26 such that the two second sprockets 13 rotate synchronously.
In one embodiment of the present utility model, the first motor 11 and the second motor 19 are fixed on the mounting frame 10 through the mounting base, so that the structure is simple, and the routine maintenance is convenient.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The sewage biochemical treatment system is characterized by comprising an oxidation ditch and a secondary sedimentation tank which are sequentially communicated, wherein an anaerobic tank is arranged at the front side of the oxidation ditch, an air floatation tank is arranged at the front side of the anaerobic tank, a coarse grille is arranged at the inlet end of the air floatation tank, a slag scraping machine is arranged on the air floatation tank, the slag scraping machine comprises a mounting frame, a first motor is arranged on the mounting frame, a first rotating shaft is arranged on the first motor, two first chain wheels are arranged on the first rotating shaft, two second chain wheels are arranged on the mounting frame, slag scraping chains are arranged between the first chain wheels and the corresponding second chain wheels, at least one slag scraping plate is arranged between the two slag scraping chains, elastic material widening scraping plates are arranged on two sides of the slag scraping plates, and the elastic material widening scraping plates can be in contact with the inner wall of the air floatation tank.
2. The biochemical sewage treatment system according to claim 1, wherein the scraper plate is provided with a mounting groove, the elastic material widening scraper plate is provided with an embedding part capable of being embedded into the mounting groove, and the embedding part is fixed on the scraper plate through a fastening bolt and a fastening nut.
3. The biochemical sewage treatment system according to claim 2, wherein each of the slag scraping chains comprises an upper chain and a lower chain wound between a first sprocket and a second sprocket, a cleaning system is arranged between the upper chain and the lower chain, the cleaning system comprises at least one spray head, and a water outlet of the spray head faces to the lower chain or/and the upper chain.
4. The biochemical sewage treatment system according to claim 3, wherein the cleaning system comprises at least one liquid distribution pipe, the spray head is arranged on the liquid distribution pipe, and the liquid distribution pipe is provided with an external pipe externally connected with a high-pressure water source.
5. The biochemical sewage treatment system according to claim 1, wherein two front travelling wheels and two rear travelling wheels are arranged on the mounting frame, a second motor is arranged on the mounting frame, a second rotating shaft is arranged on the second motor, the two rear travelling wheels are arranged on the second rotating shaft, and the front travelling wheels and the rear travelling wheels travel along the track of the air floatation tank.
6. The biochemical sewage treatment system according to claim 5, wherein the two front traveling wheels are connected by a first connecting shaft, and the two second chain wheels are connected by a second connecting shaft.
7. The wastewater biochemical treatment system according to claim 1, wherein the elastic material widening scraper is a plastic member or a silicone member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321108304.0U CN219839605U (en) | 2023-05-09 | 2023-05-09 | Sewage biochemical treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321108304.0U CN219839605U (en) | 2023-05-09 | 2023-05-09 | Sewage biochemical treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219839605U true CN219839605U (en) | 2023-10-17 |
Family
ID=88298575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321108304.0U Active CN219839605U (en) | 2023-05-09 | 2023-05-09 | Sewage biochemical treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219839605U (en) |
-
2023
- 2023-05-09 CN CN202321108304.0U patent/CN219839605U/en active Active
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