CN115043493B - Biological treatment and mud-water separation device suitable for underground sewage plant - Google Patents
Biological treatment and mud-water separation device suitable for underground sewage plant Download PDFInfo
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- CN115043493B CN115043493B CN202210737333.7A CN202210737333A CN115043493B CN 115043493 B CN115043493 B CN 115043493B CN 202210737333 A CN202210737333 A CN 202210737333A CN 115043493 B CN115043493 B CN 115043493B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 239000010865 sewage Substances 0.000 title claims abstract description 37
- 238000000926 separation method Methods 0.000 title claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims abstract description 32
- 238000007790 scraping Methods 0.000 claims abstract description 21
- 239000002893 slag Substances 0.000 claims abstract description 10
- 239000010802 sludge Substances 0.000 claims description 36
- 210000005056 cell body Anatomy 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 9
- 230000009189 diving Effects 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 22
- 238000013461 design Methods 0.000 abstract description 10
- 230000000712 assembly Effects 0.000 abstract 3
- 238000000429 assembly Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a biological treatment and mud-water separation device suitable for a subsurface sewage plant, which comprises two groups of biological tanks and Zhou Jinzhou sedimentation tanks, wherein the two groups of biological tanks are symmetrically arranged, each biological tank comprises an anaerobic tank, a front anoxic tank, a front aerobic tank, a rear anoxic tank and a rear aerobic tank which are sequentially arranged along the water outlet direction, the front aerobic tank is connected with the input end of a backflow component, and the output end of the backflow component is connected with the front anoxic tank; zhou Jinzhou the sedimentation tank comprises two groups of tank bodies which are symmetrically arranged, mud scraping and slag scraping assemblies which are arranged in the tank bodies, mud discharging assemblies which are respectively arranged at the left end and the right end of the tank bodies, and water distribution assemblies which are arranged along the length direction of the tank bodies. Through the mode, the invention adopts the structural design of two groups of biological tanks and the Zhou Jinzhou rectangular sedimentation tanks which are arranged on the same wall, has compact overall structure, small occupied area, high space utilization rate, reasonable layout of each functional tank in the biological tanks, stable operation and high overall denitrification efficiency.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a biological treatment and mud-water separation device suitable for an underground sewage plant.
Background
Along with the rapid development of urban treatment in China, sewage treatment is very challenging in domestic large cities, particularly in very large cities with aggregated population. On the one hand, a large number of foreign people gushes into the urban sewage treatment capacity, and the standard lifting and transformation requirements of the existing sewage plants are urgent. On the other hand, the original sewage plant is gradually centralized, the neighbor effect is prominent, but urban land resources are scarce, and the reconstruction and expansion land of the sewage plant is limited. In order to cope with scarce urban land resources and meet high-quality environmental demands, construction of sewage plants is sought to develop downwards to maximize the avoidance effect. In recent years, underground sewage plants are built in urban population dense areas of first-line cities such as Guangdong and deep in North and urban key river areas such as Kunming Yunnan pond and Guiyang nan Ming river in China so as to solve the contradiction of high requirements on land resources shortage and urban environment.
The underground sewage plant has the advantages of less secondary pollution, little influence by external environment and diversified ground use, the construction scale is increasing year by year, and the surrounding land overflow price can be maintained or even improved by placing the sewage plant underground. The underground sewage plant has stable running environment and can be arranged at the upstream of the urban water system so as to facilitate the recycling of sewage and the on-site recycling of reclaimed water. However, the design of the underground sewage plant needs to consider compact structure and small occupied area so as to reduce the civil investment cost.
In view of relatively high investment and operation cost of MBR technology, the floor area of the advection sedimentation tank is large, and the maintenance of double-layer advection sedimentation tank equipment is inconvenient, so that the planar floor area of the device is reduced and the space utilization rate is improved for the rectangular sedimentation tank combined device adopting the improvement A 2 O (such as the improvement Bardenpho) and the Zhou Jinzhou.
The prior art discloses a rectangular Zhou Jinzhou secondary sedimentation tank and a use method thereof, the secondary sedimentation tank comprises a tank body, a water inlet system, a water outlet system and a mud outlet system, wherein the tank body is rectangular, the water inlet system is a water inlet channel arranged at the side edge in the tank body, water distribution holes which are uniformly arranged are arranged at the bottom of the water inlet channel, and the water outlet system is a water outlet channel arranged side by side at the inner side of the water inlet channel; the mud discharging system comprises a plurality of groove-shaped mud storage hoppers and a mud discharging pipe with holes on the pipe wall, wherein the bottom surface of the tank body is provided with a plurality of groove-shaped mud storage hoppers, the upper end outlet of the mud discharging pipe is arranged in a mud discharging channel, and the upper end opening of the mud discharging pipe is provided with a sleeve valve for opening and closing a sleeve; the bottom of the tank body is provided with a mud scraping plate, the position of the water surface stored in the tank body is provided with a slag scraping plate for scraping the scum on the water surface, and a slag removing and mud scraping motor for driving the slag scraping plate and the mud scraping plate is arranged. Although the technology adopts the rectangular Zhou Jinzhou two sedimentation tanks to treat sewage, the technology only gives the structural design of the sedimentation tanks, but does not have the structural design of the biological tanks associated with the sedimentation tanks, and cannot judge the occupied space and the treatment effect of the whole sewage treatment device.
Therefore, it is necessary to design a biological treatment and sludge-water separation device which has simple structure, small occupied area, high space utilization rate, stable operation and high overall denitrification efficiency and is suitable for an underground sewage plant.
Disclosure of Invention
In order to overcome the problems, the invention provides a biological treatment and mud-water separation device suitable for an underground sewage plant, which adopts the structural design of two groups of biological tanks and Zhou Jinzhou rectangular sedimentation tanks which are arranged on the same wall, has compact overall structure, small occupied area, high space utilization rate, reasonable layout of each functional tank in the biological tanks, stable operation and high overall denitrification efficiency.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The biological treatment and mud-water separation device suitable for the underground sewage plant comprises two groups of biological tanks which are symmetrically arranged and Zhou Jinzhou sedimentation tanks which are connected with the two groups of biological tanks, wherein each biological tank comprises an anaerobic tank, a front anoxic tank, a front aerobic tank, a rear anoxic tank and a rear aerobic tank which are sequentially arranged along the water outlet direction, the front aerobic tank is connected with the input end of a reflux component, and the output end of the reflux component is connected with the front anoxic tank; zhou Jinzhou go out the sedimentation tank including two sets of cell bodies that the symmetry set up, set up in scrape mud in the cell body scrape sediment subassembly, divide to locate the mud subassembly of arranging of both ends about the cell body, and follow the water distribution subassembly that cell body length direction set up.
Further, two groups of biological tanks are arranged on the same wall, the anaerobic tank is arranged at the front end of the biological tank and is connected with a second water inlet channel arranged along the length direction of the biological tank, the water inlet end of the second water inlet channel is connected with a first water inlet channel arranged along the width direction of the biological tank through a first through-wall water hole, the second water inlet channel is arranged at the upper side of the anaerobic tank and is communicated with the anaerobic tank and the front anoxic tank, and the connection part of the second water inlet channel and the anaerobic tank is respectively provided with a first gate;
the anaerobic tank is internally provided with a first flow guide assembly, the first flow guide assembly comprises a first flow guide plate arranged along the width direction of the anaerobic tank and first U-shaped plates symmetrically arranged at the left end and the right end of the first flow guide plate, and first submersible propellers respectively arranged at the front side and the rear side of the first flow guide plate are arranged between the two groups of first U-shaped plates.
Further, the front anoxic tanks are arranged in two groups and symmetrically arranged along the width direction of the biological tank, the two groups of front anoxic tanks are arranged on the same wall, and second gates are respectively arranged between the second water inlet channel and the front anoxic tanks;
The front anoxic tank is internally provided with a second flow guide assembly, the second flow guide assembly comprises a second flow guide plate and second U-shaped plates, the second flow guide plate is arranged along the length direction of the front anoxic tank, the second U-shaped plates are symmetrically arranged at the front end and the rear end of the second flow guide plate, and second submersible propellers which are respectively arranged at the left side and the right side of the second flow guide plate are arranged between the two groups of second U-shaped plates.
Further, a second through-wall water hole is formed in the joint of the front aerobic tank and the front anoxic tank, and a plurality of air branch pipes are laid in the front aerobic tank in an air pipe gallery mode.
Further, the back anoxic tank is arranged in two groups and symmetrically arranged above the rear side of the front aerobic tank, a third through-wall water hole is formed in the joint of the two groups of back anoxic tanks, a diving stirrer is respectively arranged in the two groups of back anoxic tanks, and a fourth through-wall water hole is formed in the joint of the back anoxic tank close to one side of the front aerobic tank and the front aerobic tank.
Further, the rear aerobic tank is arranged below the rear anoxic tank at one side far away from the front aerobic tank, a fifth through-wall water passing hole is formed between the rear aerobic tank and the rear anoxic tank, and a plurality of air branch pipes are laid in the rear aerobic tank in an air pipe gallery mode.
Further, the backflow component comprises a plurality of sludge water return pumps arranged between the two groups of biological tanks and a water return channel connected with the output ends of the sludge water return pumps, wherein the water return channels are arranged into two groups and are arranged along the length direction of the front aerobic tank in a common wall mode, the output ends of the water return channels are connected with the front anoxic tank in one group, and a third gate is arranged in a connecting channel of the water return channels and the front anoxic tank.
Further, zhou Jinzhou go out the sedimentation tank with biological pond is shared the wall setting, two sets of cell body is followed the width direction in biological pond sets up side by side, two sets of the input of cell body with two sets of be provided with the water conservancy diversion canal between the back good oxygen pond, its output is provided with mud pond, play water pump house and mud pump house.
Further, the mud scraping and slag scraping assembly comprises a chain mud scraper, a plurality of horizontal mud pipes which are laid at the bottom of the tank body along the length direction of the tank body, and an electric skimming pipe which is arranged at the top of the tank body along the width direction of the tank body, wherein the plurality of horizontal mud pipes are all arranged along the width direction of the tank body.
Further, the mud discharging assembly comprises a plurality of mud discharging sleeves which are arranged at equal intervals along the length direction of the tank body, the mud discharging sleeves are arranged in the vertical direction, the bottom ends of the mud discharging sleeves are connected with the horizontal mud discharging pipe, and sleeve valves are arranged at the top ends of the mud discharging sleeves; the water distribution assembly comprises a water distribution channel arranged at the middle position of the tank body along the length direction of the tank body and a plurality of water distribution holes arranged at equal intervals along the length direction of the water distribution channel, the width of the water distribution channel gradually changes along the length direction, the width of the water inlet end of the water distribution channel is larger than the width of the water outlet end of the water distribution channel, and the apertures of the water distribution holes are the same.
Compared with the prior art, the invention has the beneficial effects that:
1. The biological treatment and mud-water separation device suitable for the underground sewage plant has the advantages of compact overall structure, small occupied area, high space utilization rate, higher hydraulic surface load and certain impact load resistance by adopting the structural design of the two groups of biological tanks and the Zhou Jinzhou rectangular sedimentation tanks which are arranged on the same wall. In addition, the biological pond is set up into two sets of, and the biological pond is connected gradually by anaerobic tank, preceding oxygen deficiency pond, preceding good oxygen pond, back oxygen deficiency pond and back good oxygen pond, and each function pond overall arrangement is reasonable, and the operation is stable to have two-stage nitrification and denitrification function, strengthen denitrification process, improve total nitrogen's removal efficiency.
2. The biological treatment and mud-water separation device suitable for the underground sewage plant, provided by the invention, adopts a multi-point water inlet mode, the water inlet channel supplies water for the anaerobic tank and the front anoxic tank simultaneously, and adopts U-shaped water inlet cavities at the water inlet positions of all the functional tanks to feed water, so that the carbon source concentration of the anoxic area is ensured, and the hydraulic condition is improved under the designed water depth to form an optimal hydraulic section.
3. The biological treatment and mud-water separation device suitable for the underground sewage plant, disclosed by the invention, has the advantages that the local ultra-high space is fully and effectively utilized by laying the plurality of air branch pipes in the front aerobic tank and the rear aerobic tank in an air pipe gallery mode, the space above the top plate of the aerobic tank is reserved, the device can be used as other functional rooms, and the space utilization rate is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a biological treatment and sludge-water separation apparatus for an underground sewage plant according to the present invention;
FIG. 2 is a schematic diagram of a biological pond of a biological treatment and sludge-water separation apparatus for an underground sewage plant according to the present invention;
FIG. 3 is a schematic cross-sectional view taken along the B-B direction in FIG. 1;
FIG. 4 is a schematic diagram of a Zhou Jinzhou effluent sedimentation tank of a biological treatment and sludge-water separation device suitable for an underground sewage plant according to the present invention;
FIG. 5 is a schematic cross-sectional view taken along the direction A-A in FIG. 1;
The components in the drawings are marked as follows: 10. a biological pond; 11. a first water inlet channel; 12. a second water inlet channel; 13. an anaerobic tank; 131. a first U-shaped plate; 132. a first deflector; 133. a first submersible propeller; 14. a front anoxic tank; 141. a second U-shaped plate; 142. a second deflector; 143. a second submersible propeller; 15. a front aerobic tank; 150. an air branch pipe; 16. a rear anoxic tank; 161. submersible agitators; 17. a rear aerobic tank; 18. a sludge water return pump; 19. a return channel; 20. zhou Jinzhou discharging the wastewater from a sedimentation tank; 21. a diversion trench; 22. a horizontal sludge discharge pipe; 220. a sleeve valve; 23. an electric skimming tube; 24. distributing channels; 25. a water distribution hole; 26. a chain mud scraper; 30. a sludge pool; 40. a water outlet pump house; 50. a sludge pump house.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
In this case, in order to avoid obscuring the present invention due to unnecessary details, only the structures and processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not greatly related to the present invention are omitted.
In addition, it should be further 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.
Examples
As shown in FIG. 1, a biological treatment and sludge-water separation device 100 suitable for an underground sewage plant comprises two groups of biological tanks 10 which are symmetrically arranged, and Zhou Jinzhou outlet sedimentation tanks 20 connected with the two groups of biological tanks 10. The biological cell 10 is preferably a modified Bardenpho biological cell 10.
The two groups of biological cells 10 are arranged in parallel, and the two groups of biological cells are arranged in a shared wall, so that partition wall materials are reduced, and occupied space is reduced. The biological pond 10 is formed by multiple functional ponds, and include anaerobic pond 13, preceding anoxic pond 14, preceding aerobic pond 15, back anoxic pond 16 and back aerobic pond 17 that set gradually along the play water direction, the water hole in each functional pond adopts the channel to wipe the circular arc form at the bottom of, forms U type water inlet channel water cross section, can improve the water conservancy condition under the design depth of water, forms optimum water cross section. The front aerobic tank 15 is connected with the input end of a reflux component, and the output end of the reflux component is connected with the front anoxic tank 14 to form an internal reflux circulation structure of the biological tank 10, and part of sludge at the bottom is refluxed for denitrification reaction. Zhou Jinzhou the sedimentation tank 20 is arranged in a rectangular structure and is arranged at the lower side of the biological tank 10 in parallel, and the sedimentation tank and the biological tank 10 are arranged on the same wall, so that partition wall materials are reduced, and occupied space is reduced. Zhou Jinzhou the sedimentation tank 20 comprises two groups of tank bodies which are symmetrically arranged, mud scraping and slag scraping components which are arranged in the tank bodies, mud discharging components which are respectively arranged at the left end and the right end of the tank bodies, and water distribution components which are arranged along the length direction of the tank bodies. The mud scraping and slag scraping assembly can scrape slag and mud rapidly, and work efficiency is improved.
By adopting the structural design of the two groups of biological tanks 10 and the Zhou Jinzhou rectangular sedimentation tanks which are arranged on the same wall, the whole structure is compact, the occupied area is small, the space utilization rate is high, the hydraulic surface load is higher, and the hydraulic surface load has certain impact load resistance. In addition, the biological tanks 10 are arranged into two groups, the biological tanks 10 are sequentially connected by an anaerobic tank 13, a front anoxic tank 14, a front aerobic tank 15, a rear anoxic tank 16 and a rear aerobic tank 17, and each functional tank is reasonable in layout, stable in operation, has a two-stage nitrification and denitrification function, strengthens the denitrification process, and improves the total nitrogen removal efficiency.
As shown in fig. 1 to 2, in some embodiments, an anaerobic tank 13 is provided at the front end of the biological tank 10 and is connected to a first water inlet channel 11 provided along the width direction of the biological tank 10, the first water inlet channel 11 being provided closely to the front end of the biological tank 10. The water outlet end of the first water inlet channel 11 is connected with a second water inlet channel 12 arranged along the length direction of the biological pond 10, the second water inlet channel 12 is arranged on the upper side of the anaerobic pond 13 and is communicated with the anaerobic pond 13 and the front anoxic pond 14, water can be fed in multiple points, and meanwhile, water can be distributed according to water from the water inlet channel. The junction of the second water inlet channel 12 and the first water inlet channel 11 is provided with a first through-wall water hole, the junction of the second water inlet channel 12 and the anaerobic tank 13 is provided with a first gate, and the junction of the second water inlet channel 12 and the front anoxic tank 14 is provided with a second gate, so that the water inlet quantity is effectively controlled.
The anaerobic tank 13 is internally provided with a first flow guide assembly, and the first flow guide assembly comprises a first flow guide plate 132 arranged along the width direction of the anaerobic tank 13 and first U-shaped plates 131 symmetrically arranged at the left end and the right end of the first flow guide plate 132. First diving propellers 133 which are respectively arranged on the front side and the rear side of the first guide plate 132 are arranged between the two groups of first U-shaped plates 131, so that the effect of stirring water flow is realized, the water flow is pushed to move along the guide direction of the first guide assembly, and therefore internal reflux in the anaerobic tank 13 is formed, and the reaction efficiency is improved. In particular, the first submersible propeller 133 may be configured as a mobile crane for convenient equipment maintenance.
So set up, through adopting the mode of multi-point intaking, the water inlet canal is to anaerobic tank 13 and preceding anoxic tank 14 water distribution simultaneously to adopt U type inlet opening to intake in the water department of each function pond, ensure anoxic zone carbon source concentration, and improve the water conservancy condition under the design depth of water, form the optimal water conservancy section.
As shown in fig. 1-2, in some embodiments, the anterior anoxic tanks 14 are arranged in two groups and symmetrically along the width of the biological tank 10. A partition wall is arranged between the two groups of front anoxic tanks 14 and the anaerobic tank 13, water is perforated on the wall, the two groups of front anoxic tanks 14 are arranged on the same wall, and a second gate is arranged between the second water inlet channel and the front anoxic tank 14, so that water flow between the two water inlet channels and the front anoxic tank 14 is controlled.
The front anoxic tank 14 is internally provided with a second flow guide assembly, the second flow guide assembly comprises a second flow guide plate 142 arranged along the length direction of the front anoxic tank 14 and second U-shaped plates 141 symmetrically arranged at the front end and the rear end of the second flow guide plate 142, and second submersible propellers 143 respectively arranged at the left side and the right side of the second flow guide plate 142 are arranged between the two groups of second U-shaped plates 141, so that the effect of stirring water flow is realized, the water flow is pushed to move along the flow guide direction of the second flow guide assembly, and therefore, the internal reflux in the front anoxic tank 14 is formed, and the reaction efficiency is improved. In particular, the second submersible vehicle 143 may be configured with a mobile crane to facilitate equipment servicing.
In particular, the rear anoxic tank 16 and the rear aerobic tank 17 can be set or set up the diversion assembly according to the volume of each in actual construction, if the volumes of the two tanks are smaller, the diversion assembly is not considered, and if the volumes of the two tanks are larger, the diversion assembly can be considered to be set up, so that the treatment efficiency is improved.
As shown in fig. 1 to 3, in some embodiments, the connection between the front aerobic tank 15 and the group of front anoxic tanks 14 is provided with a second through-wall water hole, and the front aerobic tank 15 adopts an air pipe gallery mode to lay a plurality of air branch pipes 150, so that the air branch pipes 150 are prevented from being directly laid on the top plate of the pool, and the full utilization of the upper function of the top plate is affected, thereby effectively utilizing the ultra-high space of the pool and improving the space utilization rate of the pool.
As shown in fig. 1 to 3, in some embodiments, the rear anoxic tanks 16 are provided in two groups and symmetrically disposed above the rear side of the front aerobic tank 15. The two sets of rear anoxic tanks 16 are arranged side by side along the length direction of the biological tank 10, and a third through-wall water passing hole is arranged at the joint of the two sets of rear anoxic tanks. The two groups of rear anoxic tanks 16 are respectively provided with a submersible stirrer 161, so that the water flow in the rear anoxic tanks 16 can be stirred, and the submersible stirrer 161 is matched with a movable crane, thereby facilitating equipment maintenance. A fourth through-wall water hole is arranged at the joint of the rear anoxic tank 16 and the front aerobic tank 15 near one side of the front aerobic tank 15.
The rear aerobic tank 17 is arranged below the rear anoxic tank 16 at one side far away from the front aerobic tank 15, a fifth through-wall water hole is arranged between the rear aerobic tank 17 and the rear anoxic tank, the rear aerobic tank 17 adopts an air pipe gallery mode to lay a plurality of air branch pipes 150, the local ultrahigh space is fully and effectively utilized, the space above the top plate of the rear aerobic tank 17 is reserved, the rear anoxic tank can be used as other functional rooms, and the space utilization rate is greatly improved.
As shown in fig. 4-5, in some embodiments, the backflow assembly includes a number of sludge return pumps 18 disposed between the two sets of biological tanks 10, and a return channel 19 connected to the output ends of the number of sludge return pumps 18. The sludge water return pump 18 is arranged in the sludge water return room, the water return channels 19 are arranged in two groups and are arranged along the length direction of the front aerobic tank 15 in a common wall mode, the space of the top plate of the water tank is not occupied, a pipeline is not additionally arranged, and the ultrahigh part of the water tank is fully and effectively utilized. The output end of the return channel 19 is connected with the front anoxic tank 14 which is next to the return channel, and a third gate is arranged in the connecting channel of the return channel and the front anoxic tank to control the return flow, thereby realizing two-stage nitrification and denitrification.
As shown in fig. 4 to 5, in some embodiments, zhou Jinzhou outlet sedimentation tanks 20 are arranged on the same wall as biological tank 10, two sets of tanks are arranged side by side along the width direction of biological tank 10, and a diversion channel 21 is arranged between the input ends of the two sets of tanks and two sets of rear aerobic tanks 17, so that water flow between biological tanks 10 and Zhou Jinzhou outlet sedimentation tanks 20 is connected in parallel through diversion channel 21, and the output ends of the two sets of tanks are provided with sludge tank 30, water outlet pump house 40 and sludge pump house 50. The diversion channel 21 is arranged at the rear end of the biological pond 10 along the width direction and is closely attached to the biological ponds 10 and Zhou Jinzhou to exit the sedimentation pond 20.
As shown in fig. 4-5, in some embodiments, the mud and slag scraping assembly includes a chain scraper 26, a plurality of horizontal mud pipes 22 laid down at the bottom of the tank along the length of the tank, and an electric skimming pipe 23 disposed at the top of the tank along the width of the tank. The chain scraper 26 is preferably a non-metallic chain scraper 26, which is driven in motion by a gear motor. The nonmetal chain mud scraper 26 automatically cleans the mud at the bottom of the pool and the scum on the water surface through the mud scraping plate and the scum scraping plate, and respectively discharges the mud through the horizontal mud discharging pipe 22 and the electric skimming pipe 23, thereby realizing the mud scraping and the scum scraping operation of the sedimentation tank. The plurality of horizontal sludge discharge pipes 22 are all arranged along the width direction of the tank body so as to improve the sludge recovery efficiency. The electric skimming tube 23 is arranged at the water outlet end of the sedimentation tank, so that the water outlet in the whole sedimentation tank can be scraped.
As shown in fig. 4 to 5, in some embodiments, the sludge discharging assembly includes a plurality of sludge discharging sleeves disposed at equal intervals along the length direction of the tank body, the sludge discharging sleeves being disposed in a vertical direction, the bottom ends thereof being connected with the horizontal sludge discharging pipe 22, and the top ends thereof being provided with sleeve valves 220, the sleeve valves 220 being capable of opening and closing the sludge discharging sleeves, thereby timing sludge discharging and adjusting the sludge discharging amount by adjusting the water outlet heights of the plurality of sleeve valves 220.
The water distribution assembly comprises a water distribution channel 24 arranged at the middle position of the tank body along the length direction of the tank body, and a plurality of water distribution holes 25 arranged at equal intervals along the length direction of the water distribution channel 24. The width of the water distribution channel 24 gradually changes along the length direction, the width of the water inlet end is larger than that of the water outlet end, and the apertures of the water distribution holes 25 are the same. The pond body adopts equidistant wide channel of pitch, and water distribution canal 24 adopts gradual change width according to the water yield, and water distribution hole 25 adopts equidistant same aperture setting, accords with the objective law that the water yield gradually sluices and satisfies convenient construction requirement, effectively ensures water distribution homogeneity.
The foregoing is merely illustrative of the present invention and is not to be construed as limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; all equivalent structures or equivalent flow changes made by the specification and the attached drawings of the invention or directly or indirectly applied to other related technical fields are included in the protection scope of the invention.
Claims (10)
1. The biological treatment and mud-water separation device suitable for the underground sewage plant is characterized by comprising two groups of biological tanks which are symmetrically arranged and Zhou Jinzhou sedimentation tanks which are connected with the two groups of biological tanks, wherein each biological tank comprises an anaerobic tank, a front anoxic tank, a front aerobic tank, a rear anoxic tank and a rear aerobic tank which are sequentially arranged along the water outlet direction, the front aerobic tank is connected with the input end of a reflux component, and the output end of the reflux component is connected with the front anoxic tank; zhou Jinzhou go out the sedimentation tank including two sets of cell bodies that the symmetry set up, set up in scrape mud in the cell body scrape sediment subassembly, divide to locate the mud subassembly of arranging of both ends about the cell body, and follow the water distribution subassembly that cell body length direction set up.
2. The biological treatment and sludge-water separation device suitable for an underground sewage plant according to claim 1, wherein two groups of biological tanks are arranged on the same wall, the anaerobic tank is arranged at the front end of the biological tank and is connected with a second water inlet channel arranged along the length direction of the biological tank, the water inlet end of the second water inlet channel is connected with a first water inlet channel arranged along the width direction of the biological tank through a first through-wall water hole, the second water inlet channel is arranged on the upper side of the anaerobic tank and is communicated with the anaerobic tank and a front anoxic tank, and the connection part of the second water inlet channel and the anaerobic tank is respectively provided with a first gate;
the anaerobic tank is internally provided with a first flow guide assembly, the first flow guide assembly comprises a first flow guide plate arranged along the width direction of the anaerobic tank and first U-shaped plates symmetrically arranged at the left end and the right end of the first flow guide plate, and first submersible propellers respectively arranged at the front side and the rear side of the first flow guide plate are arranged between the two groups of first U-shaped plates.
3. The biological treatment and sludge-water separation device for an underground sewage plant according to claim 2, wherein the front anoxic tanks are arranged in two groups and symmetrically arranged along the width direction of the biological tank, the two groups of the front anoxic tanks are arranged on the same wall, and a second gate is respectively arranged between the second water inlet channel and the front anoxic tanks;
The front anoxic tank is internally provided with a second flow guide assembly, the second flow guide assembly comprises a second flow guide plate and second U-shaped plates, the second flow guide plate is arranged along the length direction of the front anoxic tank, the second U-shaped plates are symmetrically arranged at the front end and the rear end of the second flow guide plate, and second submersible propellers which are respectively arranged at the left side and the right side of the second flow guide plate are arranged between the two groups of second U-shaped plates.
4. The biological treatment and sludge-water separation device for an underground sewage plant according to claim 3, wherein a second through-wall water hole is formed at the joint of the front aerobic tank and the group of front anoxic tanks, and the front aerobic tank is provided with a plurality of air branch pipes in an air pipe gallery mode.
5. The biological treatment and sludge-water separation device for an underground sewage plant according to claim 4, wherein the two sets of rear anoxic tanks are symmetrically arranged above the rear side of the front aerobic tank, third through-wall water holes are formed at the joints of the two sets of rear anoxic tanks, diving agitators are respectively arranged in the two sets of rear anoxic tanks, and fourth through-wall water holes are formed at the joints of the rear anoxic tanks, which are close to one side of the front aerobic tank, and the front aerobic tank.
6. The biological treatment and sludge-water separation device for an underground sewage plant according to claim 5, wherein the rear aerobic tank is arranged below the rear anoxic tank at a side far away from the front aerobic tank, a fifth through-wall water hole is arranged between the rear aerobic tank and the rear anoxic tank, and a plurality of air branch pipes are laid in the rear aerobic tank in an air pipe gallery mode.
7. The apparatus according to claim 6, wherein the return assembly comprises a plurality of sludge return pumps arranged between two groups of the biological tanks and return channels connected to the output ends of the plurality of sludge return pumps, the return channels are arranged in two groups and are arranged along the length direction of the front aerobic tank in a common wall, the output ends of the return channels are connected to one group of the front anoxic tanks, and a third gate is arranged in the connecting channel between the return channels.
8. The apparatus of claim 7, wherein the Zhou Jinzhou sedimentation tanks and the biological tanks are arranged on a common wall, two sets of tanks are arranged in parallel along the width direction of the biological tanks, a diversion channel is arranged between the input ends of the two sets of tanks and the two sets of rear aerobic tanks, and the output ends of the diversion channel are provided with a sludge tank, a water outlet pump room and a sludge pump room.
9. The biological treatment and sludge-water separation device for an underground sewage plant according to claim 8, wherein the sludge scraping and slag scraping assembly comprises a chain sludge scraper, a plurality of horizontal sludge discharge pipes laid on the bottom of the tank body along the length direction of the tank body, and an electric skimming pipe arranged on the top of the tank body along the width direction of the tank body, wherein the plurality of horizontal sludge discharge pipes are all arranged along the width direction of the tank body.
10. The biological treatment and sludge-water separation device for an underground sewage plant according to claim 9, wherein the sludge discharge assembly comprises a plurality of sludge discharge sleeves which are arranged at equal intervals along the length direction of the tank body, the sludge discharge sleeves are arranged in the vertical direction, the bottom ends of the sludge discharge sleeves are connected with the horizontal sludge discharge pipes, and sleeve valves are arranged at the top ends of the sludge discharge sleeves; the water distribution assembly comprises a water distribution channel arranged at the middle position of the tank body along the length direction of the tank body and a plurality of water distribution holes arranged at equal intervals along the length direction of the water distribution channel, the width of the water distribution channel gradually changes along the length direction, the width of the water inlet end of the water distribution channel is larger than the width of the water outlet end of the water distribution channel, and the apertures of the water distribution holes are the same.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210737333.7A CN115043493B (en) | 2022-06-27 | 2022-06-27 | Biological treatment and mud-water separation device suitable for underground sewage plant |
| PCT/CN2022/121634 WO2023178968A1 (en) | 2022-06-27 | 2022-09-27 | Biological treatment and sludge-water separation apparatus suitable for underground sewage plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210737333.7A CN115043493B (en) | 2022-06-27 | 2022-06-27 | Biological treatment and mud-water separation device suitable for underground sewage plant |
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| CN115043493A CN115043493A (en) | 2022-09-13 |
| CN115043493B true CN115043493B (en) | 2024-05-31 |
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| CN202210737333.7A Active CN115043493B (en) | 2022-06-27 | 2022-06-27 | Biological treatment and mud-water separation device suitable for underground sewage plant |
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| WO (1) | WO2023178968A1 (en) |
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| CN115043493B (en) * | 2022-06-27 | 2024-05-31 | 中建三局绿色产业投资有限公司 | Biological treatment and mud-water separation device suitable for underground sewage plant |
| CN118373555A (en) * | 2024-06-03 | 2024-07-23 | 吉安天卓选矿药剂有限公司 | Beneficiation reagent preparation wastewater innocent treatment system |
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|---|---|
| CN115043493A (en) | 2022-09-13 |
| WO2023178968A1 (en) | 2023-09-28 |
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