CN117263469B - River course lake sewage treatment system - Google Patents

River course lake sewage treatment system Download PDF

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Publication number
CN117263469B
CN117263469B CN202311549467.7A CN202311549467A CN117263469B CN 117263469 B CN117263469 B CN 117263469B CN 202311549467 A CN202311549467 A CN 202311549467A CN 117263469 B CN117263469 B CN 117263469B
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China
Prior art keywords
cleaning
grid
layer
pool
grating
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CN202311549467.7A
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Chinese (zh)
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CN117263469A (en
Inventor
李宁
高丽英
晏萍
杨彬烈
钟林清
陈键
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Guangzhou Green Realm Environmental Protection Technology Co ltd
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Guangzhou Green Realm Environmental Protection Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/10Temperature conditions for biological treatment
    • C02F2301/106Thermophilic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/16Regeneration of sorbents, filters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention relates to the technical field of sewage treatment, and aims at solving the problem that an underground infiltration system is difficult to treat sewage when the environmental temperature is low. Through foretell setting for the high-efficient work of underground infiltration system under low temperature condition can also in time clear up the disposal bag in the system simultaneously, improves sewage treatment efficiency.

Description

River course lake sewage treatment system
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a river and lake sewage treatment system.
Background
At present, five methods for sewage treatment generally comprise a physical method, a chemical method, a physicochemical method, a biological method and a sewage land treatment method. Among the five sewage treatment methods, the sewage land treatment method has unique advantages in terms of reducing treatment cost, and meets the requirements of recycling economy and constructing a saving type society. The sewage land treatment method mainly comprises the steps of sewage rapid infiltration, slow infiltration, surface flooding, wetland system, underground infiltration and the like. In the five sewage land treatment methods, the underground infiltration technology is utilized to treat sewage, so that the environment and the landscape of the earth surface are not affected, and the sewage can be built in urban areas and living communities.
The sewage is treated by the underground infiltration system mainly through organic matters in the microbial degradation sewage, and the activity of the microorganisms in the underground infiltration system is greatly influenced by the environmental temperature. When the temperature is about 38 ℃, the activity of the microorganism is highest, when the ambient temperature is reduced to about 15 ℃, the activity of the microorganism is lower, only about one third of the activity is remained, when the ambient temperature is further reduced to below 10 ℃, the microorganism is basically inactive, the water temperature is usually 8-10 ℃ in winter, the microorganism basically loses activity, and the microorganism implantation and growth in the system cannot be satisfied. Therefore, in cold seasons, the existing underground infiltration system cannot operate efficiently, and the sewage treatment effect is poor.
In addition, sewage such as rivers and lakes often contains various impurities, such as plastic bags and leaves, and if the river sewage is directly led into the underground infiltration system, the plastic bags in the river sewage easily block the pipeline of the underground infiltration system, so that the efficiency of the underground infiltration system in sewage treatment is low.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a river and lake sewage treatment system, so that the underground infiltration system can work efficiently under the low-temperature condition, and meanwhile, garbage bags in the system can be cleaned timely, and the sewage treatment efficiency is improved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a river and lake sewage treatment system comprises a grid tank, a sedimentation tank, an anaerobic tank, an adjusting tank, an underground infiltration unit, a heat preservation cabin for providing constant-temperature hot air, a blower and an auxiliary heat cabin which are sequentially communicated;
the underground infiltration unit comprises a covering layer, a first water dispersing layer, an upper anti-blocking layer, a second water dispersing layer, a lower anti-blocking layer, a ventilation layer, a fine filtering layer and a drainage layer which are arranged from top to bottom;
the first water dispersing layer is internally provided with a first water dispersing pipe, the second water dispersing layer is internally provided with a second water dispersing pipe, the upper anti-blocking layer is internally provided with a first communication pipe communicated with the first water dispersing layer and the second water dispersing layer, one end of the first communication pipe is communicated with the second water dispersing pipe, the ventilation layer is internally provided with an air supply pipe and an exhaust pipe, and the drainage layer is internally provided with a drainage pipe;
one end of the exhaust pipe is communicated with the heat preservation cabin, the heat preservation cabin is communicated with an air inlet of the air blower, an air outlet of the air blower is communicated with the auxiliary heat cabin, the auxiliary heat cabin is communicated with the air supply pipe, a filter screen is arranged in the exhaust pipe and close to the heat preservation cabin, and a heater is arranged in the heat preservation cabin and the auxiliary heat cabin.
By adopting the technical scheme, the river sewage is introduced into the river sewage treatment system, the sewage sequentially passes through the grid pond, the sedimentation tank, the anaerobic pond, the regulating pond and the underground infiltration unit, and finally the sewage flows back to the river from the drain pipe; when the environment temperature is low, air in the underground infiltration unit is introduced into the heat preservation cabin from the exhaust pipe to be heated once by using the air blower, then the air is introduced into the auxiliary heat cabin to be heated again by using the air blower, so that the air is heated to about 38 ℃, and then the heated air is sent into the ventilation layer from the air supply pipe to heat the underground infiltration unit, so that a proper growth temperature is provided for microorganisms, the activity of the microorganisms is ensured, the system is ensured to still operate efficiently under a cold condition, the sewage treatment efficiency of the sewage treatment system is improved, the condition that the activity of the microorganisms in the underground infiltration unit is reduced due to the fact that the environment temperature is too low is reduced, and the sewage treatment system is not easy to degrade organic matters in the sewage is adapted to the low-temperature environment, and the adaptability of the sewage treatment system is improved; meanwhile, before the sewage is introduced into the underground infiltration unit, the plastic bags in the sewage are cleaned by utilizing the grating pool, so that the pipelines in the underground infiltration unit are prevented from being blocked, and the efficiency of the sewage treatment system is improved.
The invention is further provided with: be equipped with grid pond water inlet and grid pond delivery port on the grid pond, the level of grid pond water inlet is higher than the level of grid pond delivery port, grid pond delivery port is equipped with the grid baffle, grid baffle open-ended lateral wall sliding connection has the ejecting piece that is used for sealing grid baffle open-ended, it has a plurality of flow holes to push out the piece to be close to the lateral wall of grid baffle, be equipped with the elastic component that the opening part that drives the ejecting piece along the grid baffle all the time moved towards being close to the inside direction of grid pond on the grid baffle, the top in grid pond is equipped with the pneumatic cylinder, be equipped with the clearance piece that is used for clearing up the plastic bag on the output shaft of pneumatic cylinder.
By adopting the technical scheme, when sewage is introduced into the grid pond, the sewage pushes the ejection block to move towards the direction away from the interior of the grid pond, and the ejection block opens the opening of the grid baffle, so that the sewage flows to the sedimentation pond through the grid pond and is subjected to the next treatment; when the opening of grid baffle is blocked to the plastic bag in sewage, and the airtight flow hole of ejecting piece of plastic bag, the ejecting piece receives the elastic component restoring force effect to be close to the inside direction of grid pond and removes, and ejecting piece is with the plastic bag top flow hole, then drives clearance piece clearance plastic bag, reduces because the plastic bag blocks up the grid baffle, leads to the grid baffle be difficult to with the sewage row next step procedure after the preliminary filtration, and then leads to influencing the condition of the efficiency of whole sewage treatment system treatment sewage, is favorable to improving the efficiency of sewage treatment system treatment sewage.
The invention is further provided with: the cleaning piece includes the connecting rod with pneumatic cylinder's output shaft, the lateral wall of connecting rod is outstanding to have the clearance board, the lateral wall that the clearance board is close to the grid baffle is outstanding to have a plurality of clearance poles, the clearance pole is towards the top in grid pond.
By adopting the technical scheme, the plastic bag can be cleaned conveniently only by driving the connecting rod to vertically reciprocate, so that the cleaning of the plastic bag by the driving cleaning piece becomes simple and convenient, and the operation of the driving cleaning piece is simplified; meanwhile, the cleaning rod can timely clean the plastic bag, so that the time for blocking the opening of the grating baffle by the plastic bag is reduced, and sewage can flow from the grating pool to the next sewage treatment procedure more, thereby improving the sewage treatment efficiency of the sewage treatment system.
The invention is further provided with: the cleaning rod is rotationally connected with the cleaning plate, a torsion spring used for limiting the rotation of the cleaning rod is arranged on the cleaning rod, and when the cleaning plate is static, the included angle between the cleaning plate and the cleaning rod is larger than 90 degrees.
By adopting the technical scheme, when the cleaning rod is driven to move towards the direction close to the bottom of the grille pool, the sewage in the grille pool can apply a force towards the grille Chi Dingbu to the cleaning rod, and the sewage pushes the cleaning rod to rotate towards the direction of the connecting rod, so that friction between the cleaning rod and the grille baffle is avoided, the cleaning rod is protected, and the service life of a cleaning piece is prolonged; when the bottom motion in grid pond is kept away from to the drive clearance pole, the sewage can apply a drive clearance pole and keep away from the direction pivoted power of connecting rod, and sewage promotes the clearance pole and rotate towards the direction of keeping away from the connecting rod for the clearance pole snatchs the plastic bag more easily, through above-mentioned setting, the clearance pole neither easily rubs with the grid baffle, can clear up the plastic bag better again.
The invention is further provided with: one end of the cleaning rod, which is far away from the cleaning plate, is provided with an inclined plane.
By adopting the technical scheme, through the setting on inclined plane, after the drive clearance pole drives the plastic bag and moves to the position that is close to grid pond top, when the drive clearance pole again moves towards the direction that is close to grid pond bottom, the plastic bag can break away from the clearance pole better, avoids the plastic bag to be continuously by clearance pole hook, leads to the condition that the clearance pole can't clear up other plastic bags.
The invention is further provided with: the length of the ejection block is greater than the thickness of the grid baffle, and when sewage is not injected into the grid pool, the ejection block protrudes out of one side of the opening of the grid baffle, which is close to the interior of the grid pool.
By adopting the technical scheme, when the opening of the grid baffle and the flow hole of the ejection block are blocked by the plastic bag, the elastic piece restores elasticity, so that the side wall of the connecting plate is far away from the side wall butt of the inside of the grid pool with the grid baffle, and one end of the ejection block protrudes out of the side wall of the grid baffle, which is close to the inside of the grid pool, so that the plastic bag is ejected out, the cleaning rod can be protected, and the damage caused by the long-term friction between the cleaning rod and the side wall of the grid baffle during cleaning of the plastic bag is reduced, so that the service life of the cleaning rod is prolonged.
The invention is further provided with: and a collecting piece for collecting the plastic bags is arranged in the grid pool.
By adopting the technical scheme, after the cleaning piece cleans the plastic bag, the plastic bag can be conveniently collected by driving the collecting piece, after the collecting piece collects the plastic bag for a period of time, the cleaning worker cleans the plastic bag in the collecting piece again, so that the frequency of cleaning the plastic bag by the cleaning worker is reduced, and the work of the cleaning worker is reduced.
The invention is further provided with: the collecting piece is including locating the cavity section on the grid pond lateral wall, the cavity section is close to the grid pond delivery port, just the cavity section is located the top of grid pond delivery port, the collecting piece is still including locating the drain bar in the cavity section, the lateral wall of drain bar is opened there is a plurality of through-holes that are used for the drainage, the wall thickness of drain bar is less than the wall thickness of grid pond lateral wall.
By adopting the technical scheme, because the drain board is provided with the through holes, sewage close to the top of the grid pond flows towards the drain board, when the cleaning piece moves the plastic bag to the position of the grid pond close to the top, the sewage drives the plastic bag to move towards the direction of the drain board, so that the plastic bag is stored in the hollow section, the collecting piece can be driven by the driving force of water flow, and the difficulty of operating the collecting piece is reduced.
In summary, the invention has the following beneficial effects:
1. through the arrangement of the heat preservation cabin, the air blowing cabin and the auxiliary heating cabin, the system can be started under the low-temperature condition to provide constant-temperature hot air, supply oxygen for the sewage treatment system, provide proper growth temperature for microorganisms and ensure the activity of the microorganisms, thereby ensuring that the system can still operate efficiently under the cold condition, improving the sewage treatment efficiency and having good adaptability; and the hot air is uniform, and the surplus hot air returns to the constant temperature cabin through the pipeline, so that the heat loss is reduced.
2. Through the setting of grid pond, ejecting piece and clearance piece, prevent that the plastic bag from blockking up the pipeline of underground infiltration unit, the plastic bag in the timely processing sewage of clearance piece has reduced the time of plastic bag jam grid pond delivery port simultaneously to improve sewage treatment system's efficiency of handling sewage.
3. Through the setting of torsional spring, clearance board, clearance pole and inclined plane, can protect the clearance piece, can clear up the plastic bag again better.
4. Compared with the prior art, the whole system has high sewage efficiency, and the sewage treatment capacity per unit area reaches 3t/m 2 The energy consumption is lower, the conventional energy consumption is reduced by more than one time from 0.1 degree/t, the energy saving effect is obvious, and the energy saving effect is about less than 0.05 degree/t.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a sewage treatment system.
Fig. 2 is a schematic diagram of an internal structure of a sewage treatment system.
Fig. 3 is an enlarged schematic view of the portion a in fig. 2.
Reference numerals illustrate:
1. a grille pool; 11. a water inlet of the grille pool; 12. a water outlet of the grille pool; 13. a grille baffle; 14. an ejection block; 141. a flow hole; 15. a connecting plate; 16. a hydraulic cylinder; 17. a connecting rod; 18. a cleaning plate; 19. cleaning a rod; 191. an inclined plane; 2. a sedimentation tank; 21. a sedimentation tank drain pipe; 3. an anaerobic tank; 31. a drain pipe of the anaerobic tank; 4. an adjusting tank; 41. a water pump; 42. a drain pipe of the adjusting tank; 5. an underground infiltration unit; 51. a first water-spreading layer; 511. a first water dispersing pipe; 52. an upper anti-blocking layer; 53. a second water-dispersing layer; 531. a second water dispersing pipe; 54. a lower anti-blocking layer; 55. an ventilation layer; 551. an exhaust pipe; 552. an air supply pipe; 56. a fine filtration layer; 57. a drainage layer; 571. a drainage layer drain pipe; 6. a hollow section; 61. a drain plate; 62. a through hole; 71. a thermal insulation cabin; 72. a blower; 73. and an auxiliary hot cabin.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
A river and lake sewage treatment system, referring to fig. 1 and 2, comprises a grid tank 1, a sedimentation tank 2, an anaerobic tank 3, a regulating tank 4, an underground infiltration unit 5, a heat preservation cabin 71 for providing constant temperature hot air, a blower and an auxiliary heat cabin 73 which are sequentially communicated. The underground infiltration unit 5 includes a cover layer, a first water-diffusion layer 51, an upper anti-blocking layer 52, a second water-diffusion layer 53, a lower anti-blocking layer 54, a ventilation layer 55, a fine filtration layer 56, and a drainage layer 57 disposed from top to bottom. The first water dispersing layer 51 is internally provided with a first water dispersing pipe 511, the second water dispersing layer 53 is internally provided with a second water dispersing pipe 531, the regulating tank drain pipe 42 is communicated with the first water dispersing pipe 511 and the second water dispersing pipe 531, the side walls of the first water dispersing pipe 511 and the second water dispersing pipe 531 are respectively provided with a plurality of water dispersing holes, the upper anti-blocking layer 52 is internally provided with a first communication pipe which is communicated with the first water dispersing layer 51 and the second water dispersing layer 53, one end of the first communication pipe is connected with the second water dispersing pipe 531, the ventilation layer 55 is internally provided with an air supply pipe 552 and an exhaust pipe 551, and the drainage layer 57 is internally provided with a drainage layer drain pipe 571. The exhaust pipe 551 is close to the position of the thermal insulation cabin 71 and is provided with a filter screen, the auxiliary thermal cabin 73 is communicated with the air supply pipe 552, and the thermal insulation cabin 71 and the auxiliary thermal cabin 73 are provided with heaters.
Referring to fig. 2, the heat preservation cabin 71 is provided with a heat preservation cabin air inlet and a heat preservation cabin air outlet, one end of the exhaust pipe 551 away from the ventilation layer 55 is communicated with the heat preservation cabin air inlet, and the heat preservation cabin air outlet is communicated with the air inlet of the blower 72; the auxiliary hot box 73 is provided with an auxiliary hot box air inlet and an auxiliary hot box air outlet, the auxiliary hot box air inlet is communicated with the air outlet of the blower 72, and the auxiliary hot box air outlet is communicated with the air supply pipe 552.
Referring to fig. 2, the first water-scattering layer 51, the second water-scattering layer 53, the ventilation layer 55 and the drainage layer 57 are each composed of crushed stone in the form of particle size. The upper anti-blocking layer 52 and the lower anti-blocking layer 54 are provided with a coarse filtering sub-layer and a fine filtering sub-layer from top to bottom, wherein the coarse filtering sub-layer is formed by mixing river sand and ceramsite, and the fine filtering sub-layer is formed by mixing diatomite, zeolite and fly ash. The fine filter layer 56 is formed by mixing fine sand, ceramic grains, activated carbon, calcareous soil and sandy soil.
The side wall of the grating pond 1 is provided with a grating pond water inlet 11, the side wall of the grating pond 1, which is far away from the grating pond water inlet 11, is provided with a grating pond water outlet 12, the horizontal height of the grating pond water inlet 11 is higher than that of the grating pond water outlet 12, the side wall of the grating pond water outlet 12 is fixedly connected with a grating baffle 13, the side wall of the grating baffle 13 is slidably connected with a plurality of ejection blocks 14 for closing the opening of the grating baffle 13, the side wall of the ejection blocks 14, which is close to the grating baffle 13, is provided with a plurality of flow holes 141, the grating baffle 13 is internally provided with an elastic piece which always drives the ejection blocks 14 to move along the opening of the grating baffle 13 towards the direction close to the inside of the grating pond 1, the top of the grating pond 1 is fixedly connected with a hydraulic cylinder 16, the output shaft of the hydraulic cylinder 16 is provided with a cleaning piece for cleaning plastic bags, and the grating pond 1 is internally provided with a collecting piece for collecting the plastic bags.
Referring to fig. 3, the length of the ejector block 14 is greater than the thickness of the grille shutter 13, two ends of the ejector block 14 along the height direction and the side wall far away from the interior of the grille shutter 1 are both protruded with connecting plates 15, in this embodiment, the elastic members are springs arranged in the grille shutter 13, the side wall far away from the interior of the grille shutter 13 is provided with a plurality of placing grooves for placing the elastic members, one end of each elastic member is fixedly connected with the groove bottom of the placing groove, one end of each elastic member far away from the placing groove is fixedly connected with the side wall of the connecting plate 15 near the grille shutter 1, and when the side wall of the connecting plate 15 near the grille shutter 13 is abutted with the side wall far away from the interior of the grille shutter 13, one end of the ejector block 14 protrudes out of the opening of the grille shutter 13 near the one end of the interior of the grille shutter 1.
Referring to fig. 3, the output shaft of the hydraulic cylinder 16 penetrates through the top wall of the grille pool 1, the top wall of the grille pool 1 is provided with a penetrating hole for the output shaft of the hydraulic cylinder 16 to penetrate, the cleaning piece comprises a connecting rod 17 connected with the output shaft of the hydraulic cylinder 16, one end of the connecting rod 17, which is far away from the hydraulic cylinder 16, is fixedly connected with a cleaning plate 18, the side wall, which is close to the top of the grille pool 1, of the cleaning plate 18 is hinged with a plurality of cleaning rods 19, torsion springs are arranged at the hinged positions of the cleaning plate 18 and the cleaning rods 19, the cleaning rods 19 are evenly distributed on the side wall, which is close to the top of the grille pool 1, of the cleaning rods 19, one end, which is far away from the cleaning plate 18, is provided with an inclined plane 191, and when the cleaning plate 18 is static, an included angle between the cleaning plate 18 and the cleaning rods 19 is one hundred thirty degrees.
Referring to fig. 3, the collecting member includes a hollow section 6 disposed on a sidewall of the grating pool 1 far from the water inlet, the hollow section 6 is close to the water outlet, and the hollow section 6 is located above the water outlet, the collecting member further includes a drain plate 61 disposed in the hollow section 6, a plurality of through holes 62 for draining water are formed on a sidewall of the drain plate 61, and a wall thickness of the drain plate 61 is smaller than a wall thickness of the sidewall of the grating pool 1.
Referring to fig. 2, a sedimentation tank drain pipe 21 is fixedly connected to the side wall of the sedimentation tank 2 far away from the grid baffle 13, the sedimentation tank drain pipe 21 penetrates through the sedimentation tank 2 and far away from the side wall of the grid baffle 13, the sedimentation tank drain pipe 21 is close to the top of the sedimentation tank 2, and one end of the sedimentation tank drain pipe 21 far away from the sedimentation tank 2 is communicated with the anaerobic tank 3.
Referring to fig. 2, the side wall of the anaerobic tank 3 away from the sedimentation tank 2 is fixedly connected with an anaerobic tank drain pipe 31, the anaerobic tank drain pipe 31 penetrates through the side wall of the anaerobic tank 3 away from the sedimentation tank 2, the anaerobic tank drain pipe 31 is close to the top of the anaerobic tank 3, and one end of the anaerobic tank drain pipe 31 away from the anaerobic tank 3 is communicated with the regulating tank 4.
Referring to fig. 2, a water pump 41 is fixedly connected to the bottom of the regulating tank 4, a regulating tank drain pipe 42 is fixedly connected to the side wall of the water pump 41, and one end, away from the water pump 41, of the regulating tank drain pipe 42 is communicated with the underground osmosis unit 5.
The implementation principle of the embodiment is as follows:
when the ambient temperature is lower than 15 ℃, the air blower 72 and the heater are turned on, air in the underground infiltration unit is led into the heat preservation cabin 71 from the exhaust pipe 551 to be heated for the first time to adjust the initial temperature of the air, then the air blower 72 leads the air after the first time to the auxiliary heat cabin 73 to be heated for the second time, so that the air is heated to the set temperature, and the process ensures the heat effect of the heated air through the sectional heating of the heat preservation cabin 71 and the auxiliary heat cabin 73; then, the air after secondary heating is introduced into the underground infiltration unit 5 through the air supply pipe 552 to provide proper growth temperature for microorganisms, thereby ensuring that the system can still operate efficiently under cold conditions, improving sewage treatment efficiency and having good adaptability; and the hot air is uniform, and the surplus hot air returns to the constant temperature cabin through the pipeline, so that the heat loss is reduced.
When river sewage is primarily treated by the grid pond 1 of the sewage treatment system, river sewage enters the grid pond 1 from the grid pond water inlet 11, then the sewage in the grid pond 1 flows to the grid pond water outlet 12, then the sewage flows to the sedimentation pond 2 from the flow holes 141 in the ejection block 14, and the sewage pushes the ejection block 14 to move in a direction away from the interior of the grid pond 1, so that the openings of the grid baffles are opened, and more sewage can be led into the sedimentation pond 2; when the plastic bag in the grille pond 1 blocks part of the opening of the grille baffle 13, the plastic bag reduces the flow rate of sewage flowing to the grille pond 1 baffle, so that the force of pushing the ejection block 14 by the sewage is reduced, at the moment, the elastic member resumes the elastic force to pull the ejection block 14 to move towards the interior of the grille pond 1 along the opening of the grille baffle 13, so that the side wall of the connecting plate 15 close to the grille pond 1 is abutted with the side wall of the grille baffle 13 far away from the interior of the grille pond 1, the ejection block 14 ejects the plastic bag, and as the ejection block 14 is provided with a plurality of flow holes 141 and the sewage has pressure, the flow holes 141 absorb the plastic bag;
then the connecting rod 17 is driven by the hydraulic cylinder 16 to reciprocate along the vertical direction, the cleaning rod 19 also simultaneously grabs the plastic bag, the plastic bag is moved to a position close to the collecting piece, then the cleaning rod 19 is driven to move towards the bottom of the grille pool 1, the cleaning rod 19 is separated from the plastic bag, and finally the plastic bag is driven to move into the hollow section 6 by the force of sewage flowing from the drain plate 61 to the sedimentation pool 2, so that the cleaning and the collection of the plastic bag are completed.
When the sewage treatment system is used for treating river sewage, the river sewage is primarily treated by the grating pond 1, the sedimentation pond 2 and the anaerobic pond 3, the grating pond 1 is used for removing garbage sundries such as leaves and plastic bags in the sewage, the sedimentation pond 2 is used for removing suspended particulate matters in the sewage, the anaerobic pond 3 is used for separating oil, then the sewage is led to the regulating pond 4, the regulating pond 4 is used for distributing the sewage to the first water dispersing layer 51 and the second water dispersing layer 53 in the underground permeation unit 5 in proportion, then the water in the first water dispersing layer 51 and the sewage in the second water dispersing layer 53 flow to the lower anti-blocking layer 54, the fine filtering layer 56 and the drainage layer 57 from top to bottom under the action of gravity, finally the treated sewage is discharged back to the river from the drainage layer 57, and the sewage in the sewage treatment system is used for treating organic matters, plastic bags, leaves, suspended particles and oil and the like in the river so that the water in the river is cleaner.
When the connecting rod 17 drives the cleaning plate 18 to move towards the direction close to the bottom of the grille pool 1, water flow can generate vertical upward force to act on the cleaning rod 19, the water flow pushes the cleaning rod 19 to rotate towards the direction close to the connecting rod 17, the cleaning rod 19 is prevented from colliding with the ejection block 14 when moving towards the direction close to the bottom of the grille pool 1, cleaning pieces are protected, and the service life of the cleaning pieces is prolonged; when the connecting rod 17 drives the cleaning plate 18 to move away from the bottom of the grating pool 1, a vertical downward force is generated by water flow to act on the cleaning rod 19, and the water flow pushes the cleaning rod 19 to rotate away from the connecting rod 17, so that the cleaning rod 19 can better grasp plastic bags.
Through the setting of filter screen, the quantity that the particulate matter got into heat preservation cabin 71, blast air cabin and supplementary hot cabin 73 to reduce the friction of particulate matter and air-blower 72 and heater, and then protect air-blower 72 and heater, be favorable to prolonging the life of air-blower 72 and heater.
Through ejecting piece 14 and clearance piece setting, when the opening of plastic bag jam grid baffle 13, ejecting piece 14 can in time be ejecting the plastic bag, and simultaneously ejecting piece 14 adsorbs the plastic bag, then drives clearance piece clearance plastic bag for grid pond delivery port 12 can continue the drainage, through above-mentioned setting, when the plastic bag in the sewage can be filtered to grid baffle 13, does not influence the efficiency of grid pond 1 treatment sewage again.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (3)

1. A river course lake sewage treatment system which characterized in that: comprises a grid pool (1), a sedimentation tank (2), an anaerobic pool (3), an adjusting pool (4), an underground infiltration unit (5), a heat preservation cabin (71) for providing constant temperature hot air, a blower (72) and an auxiliary heat cabin (73) which are sequentially communicated;
the underground infiltration unit (5) comprises a covering layer, a first water dispersing layer (51), an upper anti-blocking layer (52), a second water dispersing layer (53), a lower anti-blocking layer (54), a ventilation layer (55), a fine filtering layer (56) and a drainage layer (57) which are arranged from top to bottom;
a first water dispersing pipe (511) is arranged in the first water dispersing layer (51), a second water dispersing pipe (531) is arranged in the second water dispersing layer (53), a first communication pipe which is communicated with the first water dispersing layer (51) and the second water dispersing layer (53) is arranged in the upper anti-blocking layer (52), one end of the first communication pipe is communicated with the second water dispersing pipe (531), a blast pipe (552) and an exhaust pipe (551) are arranged in the ventilation layer (55), and a drain pipe is arranged in the drainage layer (57);
one end of the exhaust pipe (551) is communicated with the heat preservation cabin (71), the heat preservation cabin (71) is communicated with an air inlet of the air blower (72), an air outlet of the air blower (72) is communicated with the auxiliary hot cabin (73), the auxiliary hot cabin (73) is communicated with the air supply pipe (552), a filter screen is arranged at a position, close to the heat preservation cabin (71), of the exhaust pipe (551), and heaters are arranged in the heat preservation cabin (71) and the auxiliary hot cabin (73);
the plastic bag cleaning device is characterized in that a grating pool water inlet (11) and a grating pool water outlet (12) are arranged on the grating pool (1), the horizontal height of the grating pool water inlet (11) is higher than that of the grating pool water outlet (12), a grating baffle (13) is arranged on the grating pool water outlet (12), an ejection block (14) for closing the opening of the grating baffle (13) is connected with the side wall of the opening of the grating baffle (13) in a sliding manner, a plurality of flow holes (141) are formed in the side wall, close to the grating baffle (13), of the ejection block (14) and an elastic piece which always drives the ejection block (14) to move along the opening of the grating baffle (13) towards the direction close to the interior of the grating pool (1) is arranged on the grating baffle (13), a hydraulic cylinder (16) is arranged at the top of the grating pool (1), and a cleaning piece for cleaning plastic bags is arranged on an output shaft of the hydraulic cylinder (16);
the cleaning piece comprises a connecting rod (17) connected with an output shaft of the hydraulic cylinder (16), a cleaning plate (18) protrudes from the side wall of the connecting rod (17), a plurality of cleaning rods (19) protrude from the side wall of the cleaning plate (18) close to the grid baffle plate (13), and the cleaning rods (19) face the top of the grid pool (1);
the cleaning rod (19) is rotationally connected with the cleaning plate (18), a torsion spring for limiting the rotation of the cleaning rod (19) is arranged on the cleaning rod (19), and when the cleaning plate (18) is static, an included angle between the cleaning plate (18) and the cleaning rod (19) is larger than 90 degrees;
a collecting piece for collecting plastic bags is arranged in the grid pool (1); the collecting piece is including locating cavity section (6) on grid pond (1) lateral wall, cavity section (6) are close to grid pond delivery port (12), just cavity section (6) are located the top of grid pond delivery port (12), collecting piece is still including locating drain bar (61) in cavity section (6), the lateral wall of drain bar (61) is opened has a plurality of through-holes (62) that are used for the drainage, the wall thickness of drain bar (61) is less than the wall thickness of grid pond (1) lateral wall.
2. The river course and lake sewage treatment system of claim 1, wherein: one end of the cleaning rod (19) far away from the cleaning plate (18) is provided with an inclined surface (191).
3. A river course and lake sewage treatment system of claim 2, wherein: the length of the ejection block (14) is larger than the thickness of the grid baffle (13), and when the grid pool (1) is not filled with sewage, the ejection block (14) protrudes out of one side of an opening of the grid baffle (13) close to the interior of the grid pool (1).
CN202311549467.7A 2023-11-21 2023-11-21 River course lake sewage treatment system Active CN117263469B (en)

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Application Number Priority Date Filing Date Title
CN202311549467.7A CN117263469B (en) 2023-11-21 2023-11-21 River course lake sewage treatment system

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Application Number Priority Date Filing Date Title
CN202311549467.7A CN117263469B (en) 2023-11-21 2023-11-21 River course lake sewage treatment system

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CN117263469B true CN117263469B (en) 2024-02-20

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103641270A (en) * 2013-11-20 2014-03-19 广州中科院地球化学研究科技开发有限公司 High-load subsurface infiltration and sewage treatment combination system
CN211688724U (en) * 2020-01-16 2020-10-16 四川瑞一达环境科技有限公司 A dispersion sewage treatment device for rural in mountain area
CN219964104U (en) * 2023-06-20 2023-11-07 沈阳绿语环保技术咨询有限公司 Filter grid convenient to clearance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103641270A (en) * 2013-11-20 2014-03-19 广州中科院地球化学研究科技开发有限公司 High-load subsurface infiltration and sewage treatment combination system
CN211688724U (en) * 2020-01-16 2020-10-16 四川瑞一达环境科技有限公司 A dispersion sewage treatment device for rural in mountain area
CN219964104U (en) * 2023-06-20 2023-11-07 沈阳绿语环保技术咨询有限公司 Filter grid convenient to clearance

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