CN117700055B - Sewage treatment device and method for sewage plant - Google Patents
Sewage treatment device and method for sewage plant Download PDFInfo
- Publication number
- CN117700055B CN117700055B CN202410160943.4A CN202410160943A CN117700055B CN 117700055 B CN117700055 B CN 117700055B CN 202410160943 A CN202410160943 A CN 202410160943A CN 117700055 B CN117700055 B CN 117700055B
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- water
- tank
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- 239000010865 sewage Substances 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 131
- 239000012528 membrane Substances 0.000 claims description 67
- 239000010802 sludge Substances 0.000 claims description 38
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 238000005273 aeration Methods 0.000 claims description 13
- 238000004659 sterilization and disinfection Methods 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000007790 scraping Methods 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
- B01D65/027—Cleaning of other parts of the apparatus than the membrane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
- B01D65/04—Membrane cleaning or sterilisation ; Membrane regeneration with movable bodies, e.g. foam balls
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/30—Mechanical cleaning, e.g. with brushes or scrapers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to the technical field of sewage treatment devices, and particularly relates to a sewage treatment device and a sewage treatment method of a sewage plant.
Description
Technical Field
The invention belongs to the field of sewage treatment devices, and particularly relates to a sewage treatment device and method for a sewage plant.
Background
When sewage is treated in a sewage plant, the sewage is generally filtered by adopting a coarse grid and a fine grid, sediment at the bottom is precipitated by a sand sedimentation tank, organic matters are adsorbed and degraded by activated sludge by an anoxic tank, nutrient substances such as nitrogen, phosphorus and the like in the sewage are removed by an anaerobic tank, the organic matters are decomposed into inorganic matters by adsorption and chemical reaction of microorganisms in an aerobic tank, oxygen is consumed, carbon dioxide and water are released, the sewage and the sludge are separated by a sludge concentration tank, and the separated sewage is subjected to next disinfection.
In the sewage treatment process, a large number of membrane assemblies and aeration pipes are arranged in the aerobic tank, the membrane assemblies are directly placed in the aeration tank, purified water is pumped out through a negative pressure pump, activated sludge is trapped in the aerobic tank, and in long-term use, a large number of activated sludge is attached to the surfaces of the membrane assemblies, so that the filtering effect of the membrane assemblies on the sludge is reduced, and a new membrane assembly needs to be replaced, thereby increasing the sewage treatment cost, and consuming a large amount of time to replace the membrane assemblies.
Disclosure of Invention
Aiming at the problem that a large amount of sludge is easy to adhere to a membrane component in an aerobic tank in the prior art when sewage is treated, the invention provides the following technical scheme:
the utility model provides a sewage treatment device of sewage factory, including the grid pond that is connected in proper order, the sand basin, the anoxic tank, the anaerobism pond, good oxygen pond, mud concentration tank and disinfection pond, one side in good oxygen pond is provided with two treatment ponds, the treatment pond is located between anaerobism pond and the good oxygen pond, fixed mounting has the stopper between the opposite face in two treatment ponds, the top of stopper rotates and is connected with the arc, the top of arc slides and is provided with the inlet tube, the top fixed mounting of arc has the limiting plate, the arc has all been seted up to the inner chamber opposite face of limiting plate, the arc is wave design, and the height in the middle of the arc is greater than the height at arc both ends, sliding between two arc grooves is provided with the balance weight dish, the bottom fixed mounting of arc has two floating barrels, one side fixedly connected with first blow off pipe in treatment pond, equal fixed mounting of inner wall in two treatment ponds has the water injection pipe, one side fixed mounting in good oxygen pond has servo motor, one side fixedly connected with second blow off pipe in good oxygen pond, rotate between the opposite face in the inner wall of arc and be connected with a plurality of membrane modules, the bottom of a plurality of articulated membrane modules are all fixed connection has the connecting plate between the membrane modules.
Preferably, two fixed plates are fixedly arranged at the top of the aerobic tank, sliding grooves are formed in one side of each of the two fixed plates, moving plates are slidably arranged on the inner sides of the two sliding grooves, two springs are fixedly connected to the bottom of each moving plate, a supporting plate is fixedly connected between the two moving plates, two water collecting boxes are fixedly arranged at the top of each supporting plate, and a plurality of water leakage holes are formed in the outer sides of the water collecting boxes.
Preferably, the bottom of the supporting plate is fixedly provided with a plurality of door templates, and a plurality of first hairbrushes are rotationally connected between opposite surfaces of the inner sides of the door templates.
Preferably, a second hairbrush is rotationally connected between opposite surfaces of the inner side of the door-shaped plate, the top of the aeration pipe is fixedly connected with a plurality of air outlet pipes, and a plurality of wave plates are fixedly arranged at the end parts of the second hairbrush.
Preferably, a scraping plate is fixedly arranged between the opposite surfaces of the inner sides of the door-shaped plates, and a plurality of rectangular grooves are formed in the bottom ends of the scraping plate in a penetrating mode.
Preferably, the bottom fixedly connected with hose of water injection pipe, the bottom fixedly connected with floating ring of hose.
Preferably, the two floating barrels are respectively positioned at the inner sides of the two treatment tanks, the water pump is fixedly sleeved at the outer side of the water injection pipe, and the output end of the servo motor is fixedly connected at one side of the membrane assembly.
Preferably, the second brush is located below the first brush, and the scraper is located directly above the second brush.
The invention also provides a method for sewage treatment by using the sewage treatment device of the sewage plant, which comprises the following steps:
step one: firstly, filtering sewage through a grid pond, then precipitating sand and dust in the sewage through a sand sedimentation pond, then enabling the sewage to sequentially pass through an anoxic pond and an anaerobic pond, decomposing organic matters in the sewage, and then discharging the sewage in the anaerobic pond into a treatment pond through a water inlet pipe;
step two: the floating barrel moves upwards along with the water level rising in the treatment tank, then the counterweight plate automatically inclines towards the end part of the arc-shaped groove, the water inlet pipe is enabled to inject sewage into the other treatment tank, and at the moment, the treatment tank filled with sewage is pumped and discharged through the water pump;
step three: the sewage can be discharged into the water collecting box through the water injection pipe, the weight of the water collecting box is increased at the moment, the supporting plate also moves downwards along the sliding groove, and when the door-shaped plate is submerged in water, one side of the membrane assembly can be cleaned through the first hairbrush and the second hairbrush;
step four: when the second hairbrush cleans the membrane assembly, the second hairbrush can deflect through the wave plate, the scraping plate can clean the second hairbrush during deflection, and after sewage in the treatment tank is emptied, the supporting plate moves upwards to reset through the spring, and then the sludge in the treatment tank is discharged through the first sewage discharge pipe;
step five: after the other treatment tank is filled with sewage, the water injection pipe is moved again through the floating barrel, then the other water collecting box is filled with sewage, the supporting plate descends again, and then the first hairbrush and the second hairbrush can clean the other side of the membrane component;
step six: the sewage is alternately injected into the aerobic tank by the two treatment tanks, the sludge in the treatment tanks is discharged through the first sewage discharge pipe, and then the two sides of the membrane component are cleaned by the first hairbrush and the second hairbrush continuously through the two water collecting boxes;
step seven: when a large amount of sludge is accumulated in the aerobic tank, the sludge in the aerobic tank is discharged into the sludge concentration tank through the second sewage discharge pipe, then the sewage filtered by the membrane component is discharged into the disinfection tank, and the sewage is discharged after being disinfected by the disinfection tank.
The beneficial effects of the invention are as follows: when the sewage in the treatment tank is too much, the floating barrel provides a lifting force, so that the counterweight plate moves to the end part of the arc-shaped groove, and the other treatment tank can collect the sewage at the moment, and the sewage is subjected to preliminary filtration alternately through the two treatment tanks, so that the filtration burden of the membrane component is reduced.
After being poured into sewage in the water collecting box, sewage and air can be preliminarily mixed through the water leakage hole, then the supporting plate is lowered through increasing the weight of the water collecting box, and the first hairbrush and the second hairbrush can be used for cleaning the two sides of the membrane assembly in an alternating manner through the sliding groove in the lowering process, so that the filtering effect of the membrane assembly is guaranteed.
The arc plate is blown by the air outlet pipe to deflect, and the second hairbrush can deflect. And a large amount of mud at the bottom end of the membrane assembly is brushed off, and the mud on the surface of the second brush can be scraped off by the scraping plate in the process of deflecting the second brush.
The bottom of the hose can always float on water through the floating ring, so that when the water injection pipe extracts sewage in the treatment tank, the hose can not directly suck the sludge at the bottom of the treatment tank into the water injection pipe together with the sewage, and the content of the sludge in the aerobic tank can be further reduced.
Drawings
FIG. 1 is a perspective view of an aerobic tank according to an embodiment of the present invention;
FIG. 2 is a schematic view, partially in section, of a limiting plate according to one embodiment of the present invention;
FIG. 3 is a schematic view showing the internal structure of an aerobic tank according to an embodiment of the present invention;
FIG. 4 is a schematic view showing the positional relationship between a fixed plate and an aerobic tank according to an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the positional relationship between a support plate and a fixing plate according to an embodiment of the present invention;
FIG. 6 is an exploded view of a door form and a second brush according to one embodiment of the present invention;
FIG. 7 is a schematic diagram showing the connection relationship between an air outlet pipe and an aeration pipe according to one embodiment of the present invention;
FIG. 8 is a schematic diagram of a hose to floating ring connection according to one embodiment of the present invention;
fig. 9 is a schematic diagram of a sewage treatment process according to an embodiment of the present invention.
In the figure: 1. an aerobic tank; 2. a treatment pool; 3. a limiting block; 4. an arc-shaped plate; 5. a water inlet pipe; 6. a limiting plate; 7. an arc-shaped groove; 8. a weight plate; 9. a floating barrel; 10. a first drain pipe; 11. a water injection pipe; 12. a water pump; 13. a servo motor; 14. a second drain pipe; 15. a membrane module; 16. a connecting plate; 17. an aeration pipe; 18. a fixing plate; 19. a chute; 20. a moving plate; 21. a spring; 22. a support plate; 23. a water collecting box; 24. a water leakage hole; 25. a door template; 26. a first brush; 27. a second brush; 28. an air outlet pipe; 29. a wave plate; 30. a scraper; 31. a hose; 32. and (3) floating rings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
Embodiment one: the invention provides a sewage treatment device for a sewage plant, which is shown in the drawings from 1 to 9, and comprises a grid pond, a sand sedimentation pond, an anoxic pond, an anaerobic pond, an aerobic pond 1, a sludge concentration pond and a disinfection pond which are sequentially connected, wherein two treatment ponds 2 are arranged on one side of the aerobic pond 1, the treatment ponds 2 are positioned between the anaerobic pond and the aerobic pond 1, a limiting block 3 is fixedly arranged between opposite surfaces of the two treatment ponds 2, the top end of the limiting block 3 is rotationally connected with an arc-shaped plate 4, the top of the arc-shaped plate 4 is slidingly provided with a water inlet pipe 5, the top of the arc-shaped plate 4 is fixedly provided with a limiting plate 6, the opposite surfaces of the inner cavity of the limiting plate 6 are respectively provided with an arc-shaped groove 7, the arc-shaped grooves 7 are of wave-shaped design, the middle height of the arc-shaped grooves 7 is larger than the heights of two ends of the arc-shaped grooves 7, a counterweight disc 8 is slidingly arranged between the two arc-shaped grooves 7, the bottom of the arc-shaped plate 4 is fixedly provided with two floating barrels 9, a first blow-off pipe 10 is fixedly connected to one side of the treatment tank 2, water injection pipes 11 are fixedly arranged on the inner walls of the two treatment tanks 2, two water pumps 12 are fixedly arranged on one side of the aerobic tank 1, a servo motor 13 is fixedly arranged on one side of the aerobic tank 1, a second blow-off pipe 14 is fixedly connected to one side of the aerobic tank 1, a plurality of membrane assemblies 15 are rotationally connected between opposite surfaces of the inner walls of the aerobic tank 1, two floating barrels 9 are respectively positioned on the inner sides of the two treatment tanks 2, the water pumps 12 are fixedly sleeved on the outer sides of the water injection pipes 11, the output ends of the servo motors 13 are fixedly connected to one side of the membrane assemblies 15, connecting plates 16 are hinged between the two adjacent membrane assemblies 15, an aeration pipe 17 is fixedly arranged at the bottom of an inner cavity of the aerobic tank 1, two fixing plates 18 are fixedly arranged at the top of the aerobic tank 1, sliding grooves 19 are formed in one side of the two fixing plates 18, the inside of two spouts 19 all slides and is provided with movable plate 20, the bottom fixedly connected with two springs 21 of movable plate 20, fixedly connected with backup pad 22 between two movable plates 20, the top fixed mounting of backup pad 22 has two water accumulation boxes 23, a plurality of holes 24 that leak have been seted up in the outside of water accumulation boxes 23, the bottom fixed mounting of backup pad 22 has a plurality of door templates 25, rotate between the inboard opposite face of door template 25 and be connected with a plurality of first brush 26, rotate between the inboard opposite face of door template 25 and be connected with second brush 27, the top fixedly connected with a plurality of outlet duct 28 of aeration tube 17, the tip fixed mounting of second brush 27 has a plurality of waved plates 29, fixedly mounted scraper blade 30 between the inboard opposite face of door template 25, a plurality of rectangular channels have been seted up in the bottom penetration of scraper blade 30, second brush 27 is located the below of first brush 26, scraper blade 30 is located the top of second brush 27, the bottom fixedly connected with hose 31 of water injection tube 11, the bottom fixedly connected with floating collar 32 of hose 31.
Specifically, when sewage is treated in a sewage plant, the sewage is subjected to layer-by-layer filtration to coarse grids and fine grids, sediment in the sewage is then precipitated in the filtered sewage through a sand sedimentation tank, activated sludge is adsorbed and degraded into organic matters through an anoxic tank, microorganisms are grown in layers through an anaerobic tank, nutrient substances such as nitrogen, phosphorus and the like in the sewage are removed, the organic matters are decomposed into inorganic matters through adsorption and chemical reaction of the microorganisms in the aerobic tank 1, oxygen is consumed, carbon dioxide and water are released, the sewage and the sludge are separated through a sludge concentration tank, the separated sewage is subjected to further disinfection, a large number of membrane assemblies 15 are arranged in the aerobic tank 1, the biological degradable organic pollutants in the water are removed through the activated sludge, and then the purified water and the activated sludge are subjected to solid-liquid separation through membranes, in order to enable the membrane module 15 to continuously and stably run for a long time, the treatment tanks 2 are arranged between the aerobic tank 1 and the anaerobic tank, sewage can be filtered in advance for the aerobic tank 1 through the treatment tanks 2, so that the service life of the membrane module 15 is prolonged, the number of the treatment tanks 2 is two, the sewage is alternately filtered, water in the anaerobic tanks flows into one of the treatment tanks 2 through the water inlet pipe 5, when the sewage in one of the treatment tanks 2 is fast full, the floating barrel 9 rises along with the water level, at the moment, the balance weight disc 8 downwards presses the floating barrel 9 to reduce the rising height of the floating barrel 9, the arc-shaped groove 7 is in an arc-shaped design, the middle part of the arc-shaped groove 7 is high, the two ends of the arc-shaped groove 7 are low, when the arc-shaped plate 4 begins to incline due to the buoyancy of the floating barrel 9, the balance weight disc 8 moves to the middle part of the arc-shaped groove 7, and then the balance weight disc 8 is blocked by the bulge in the middle part of the arc-shaped groove 7 and does not move any more, when the water in the treatment tank 2 is full, the float bowl 9 increases the inclined angle of the arc plate 4, the balance weight disc 8 passes through the middle part of the arc groove 7 and slides to the other end of the arc groove 7, the water inlet pipe 5 slides to the upper part of the other treatment tank 2, the arc plate 4 can not be inclined at will by the buoyancy of the float bowl 9 through the balance weight disc 8, the end part of the water inlet pipe 5 can be adjusted to the upper part of the other treatment tank 2 through the balance weight disc 8 only when the sewage in the treatment tank 2 is full, the sludge in the treatment tank 2 can be deposited at the bottom of the treatment tank 2, then the sewage in the treatment tank 2 can be pumped through the water pump 12, meanwhile, the sludge at the bottom of the treatment tank 2 is discharged through the first sewage discharge pipe 10 to finish the primary filtration of the sewage, the water in the treatment tank 2 is discharged into the aerobic tank 1 through the water injection pipe 11, sewage can be filtered through the membrane component 15 at the moment, after the surface of the membrane component 15 is attached with sludge, the servo motor 13 can be started to drive the membrane component 15 to rotate, the connecting plates 16 are hinged between the two adjacent membrane components 15, the membrane components 15 can be rotated to an inclined state through the connecting plates 16, the surface of the membrane component 15 can be cleaned through the aeration pipe 17 at the moment, after the membrane component 15 is in the inclined state, the contact area of the membrane component 15 and bubbles is enlarged, so that the gas can clean the sludge on the membrane component 15 by the bubbles, and the membrane component 15 is sequentially driven to rotate in the positive direction through the servo motor 13, so that the two sides of the membrane component 15 can be cleaned automatically by the bubbles.
Embodiment two: referring to fig. 4 and 5, on the basis of the first embodiment, two fixing plates 18 are fixedly installed at the top of the aerobic tank 1, sliding grooves 19 are formed in one sides of the two fixing plates 18, moving plates 20 are slidably arranged in the inner sides of the two sliding grooves 19, two springs 21 are fixedly connected to the bottom of the moving plates 20, a supporting plate 22 is fixedly connected between the two moving plates 20, two water collecting boxes 23 are fixedly installed at the top of the supporting plate 22, and a plurality of water leakage holes 24 are formed in the outer sides of the water collecting boxes 23.
Specifically, two water collecting boxes 23 are fixedly installed at the top of the supporting plate 22, sewage is alternately injected into the two water collecting boxes 23 through the two water injecting pipes 11, the two water collecting boxes 23 are in a rotationally symmetrical design, the bottom of the inner cavity of each water collecting box 23 is in an inclined design, the water collecting boxes 23 are collected at one end far away from the fixing plate 18, a plurality of water leakage holes 24 are formed in the outer side of each water collecting box 23, water in each water collecting box 23 can be discharged through the corresponding water leakage holes 24, sewage can be mixed with air at a high position through the corresponding water leakage holes 24, so that the oxygen content of the sewage is improved, growth of microorganisms in the aerobic tank 1 is promoted, a plurality of through holes are formed in the bottom of the inner cavity of each water collecting box 23, the diameter of the through holes is smaller than that of the corresponding water leakage holes 24, the through holes can empty the sewage in each water collecting box 23, when a large amount of sewage exists in each water collecting box 23, the water collecting boxes 23 are driven to incline towards one side, at the moment, the moving plate 20 slides downwards along the corresponding sliding groove 19, the material of each water collecting box 23 is light and has buoyancy, the water collecting boxes 23 can be pushed upwards through the corresponding water collecting boxes 23, and the water level of the water collecting boxes 23 can be moved upwards through the water collecting boxes 23 by the water level 1, and the water level of the water collecting boxes 23 can be reset to the water level 21 when the water level is high through the water collecting boxes 23, and the water level is moved upwards through the water collecting boxes 23, and can be moved upwards through the water boxes 21, and can be moved upwards through the water boxes 23.
Embodiment III: referring to fig. 6, on the basis of the second embodiment, a plurality of door-shaped plates 25 are fixedly installed at the bottom of the support plate 22, and a plurality of first brushes 26 are rotatably connected between opposite inner surfaces of the door-shaped plates 25.
Specifically, the chute 19 is designed in an inverted U shape, by alternately injecting sewage into the two water tanks 23 to enable the support plates 22 to alternately slide to the two ends of the chute 19, a plurality of door-shaped plates 25 are fixedly arranged at the bottom of the support plates 22, a plurality of first brushes 26 are rotatably connected between opposite inner sides of the door-shaped plates 25, the number of the door-shaped plates 25 is the same as that of the membrane modules 15, the door-shaped plates 25 are positioned right above the membrane modules 15, after the sewage is fully filled in the water tanks 23 close to the treatment tank 2, the support plates 22 are inclined towards the treatment tank 2, then the movable plates 20 move downwards along the chute 19, at the moment, the first brushes 26 are no longer positioned right above the membrane modules 15 and are positioned at one side of the membrane modules 15, in the process that the supporting plate 22 descends, the first hairbrush 26 can clean one side of the membrane assembly 15, so that the first hairbrush 26 brushes out sludge on one side of the membrane assembly 15 when the supporting plate is attached to the supporting plate, the membrane assembly 15 can filter sewage for a long time, the bristles on the first hairbrush 26 can fly through the aeration pipe 17, the cleaning effect is higher, when water in the water collecting box 23 gradually decreases, the supporting plate 22 is pressed upwards by the spring 21 and moves to reset, then the water collecting box 23 far away from the treatment tank 2 is filled with sewage, and then the supporting plate 22 starts to incline towards one side far away from the treatment tank 2, so that the first hairbrush 26 can clean the other side of the membrane assembly 15, and the filtering effect of the membrane assembly 15 is guaranteed.
Embodiment four: as shown in fig. 6 and 7, on the basis of the third embodiment, a second brush 27 is rotatably connected between opposite inner sides of the door-shaped plate 25, a plurality of air outlet pipes 28 are fixedly connected to the top of the aeration pipe 17, and a plurality of wave plates 29 are fixedly installed at the ends of the second brush 27.
Specifically, the second hairbrush 27 is rotatably connected between opposite surfaces of the inner side of the door-shaped plate 25, the quantity of hairs on the second hairbrush 27 is larger than that of hairs on the first hairbrush 26, the top of the aeration pipe 17 is fixedly connected with a plurality of air outlet pipes 28, a plurality of wave plates 29 are fixedly arranged at the end parts of the second hairbrush 27, when the door-shaped plate 25 is completely positioned in the aerobic tank 1, the wave plates 29 are close to the air outlet pipes 28, air is sprayed upwards through the air outlet pipes 28, the wave plates 29 are in contact with the air, then the wave plates 29 deflect, the wave plates 29 are of wave-shaped design, so that the contact area of the air and the wave plates 29 is increased, when the wave plates 29 are blown by the air, the second hairbrush 27 is driven to deflect, a large quantity of sludge is accumulated at the bottom of the membrane assembly 15 in long-term use, the surface of the membrane assembly 15 can be cleaned strongly by deflecting the second hairbrush 27, the bottom of the membrane assembly 15 can not be adhered to the air outlet pipes 28, the filter effect of the bottom of the membrane assembly 15 is affected, the sewage can be discharged into the sewage tank 1 through the top of the second hairbrush assembly 14, and then the sewage can permeate the sewage pipe 15 through the bottom of the second membrane assembly 14 to the sewage pipe.
Fifth embodiment: referring to fig. 6, on the basis of the fourth embodiment, a scraper 30 is fixedly installed between opposite inner sides of the gate plate 25, a plurality of rectangular grooves are formed through the bottom ends of the scraper 30, the second brush 27 is located above the first brush 26, and the scraper 30 is located right above the second brush 27.
Specifically, the scraper 30 is fixedly installed between the opposite surfaces of the inner side of the door-shaped plate 25, a plurality of rectangular grooves are formed in one side of the scraper 30, the bottom end of the scraper 30 is zigzag, the second brush 27 is located below the first brush 26, the scraper 30 is located right above the second brush 27, when the bottom of the membrane assembly 15 is cleaned by the second brush 27, mud is adhered to the surface of the second brush 27, the second brush 27 can be cleaned by the scraper 30 at the moment, the second brush 27 can be contacted with the scraper 30 in the process of deflecting the second brush 27, and the mud on the surface of the second brush 27 can be scraped by the zigzag design of the bottom of the scraper 30 at the moment, so that the cleaning effect of the second brush 27 is ensured.
Example six: as shown in fig. 8, in the above embodiment, the hose 31 is fixedly connected to the bottom end of the water injection pipe 11, and the floating ring 32 is fixedly connected to the bottom end of the hose 31.
Specifically, the floating ring 32 has buoyancy, the hose 31 can float on the water surface of the treatment tank 2 through the floating ring 32, when the water injection pipe 11 starts pumping water, the water injection pipe 11 starts pumping water from the upper part of the water surface through the floating ring 32, so that the sludge at the bottom of the treatment tank 2 can be prevented from being discharged into the aerobic tank 1, the length of the hose 31 is smaller than the height of the treatment tank 2, the hose 31 can be prevented from being contacted with the bottom of the treatment tank 2, and then the sludge in the treatment tank 2 can be discharged through the first sewage discharge pipe 10, and the next treatment can be performed.
Embodiment seven: the invention also provides a method for sewage treatment by using the sewage treatment device of the sewage plant, which comprises the following steps:
step one: firstly, filtering sewage through a grid pond, then precipitating sand and dust in the sewage through a sand sedimentation pond, then enabling the sewage to sequentially pass through an anoxic pond and an anaerobic pond, decomposing organic matters in the sewage, and then discharging the sewage in the anaerobic pond into a treatment pond 2 through a water inlet pipe 5;
step two: the floating barrel 9 moves upwards along with the water level rise in the treatment tank 2, then the counterweight disc 8 automatically inclines towards the end part of the arc-shaped groove 7, the water inlet pipe 5 injects sewage into the other treatment tank 2, and the treatment tank 2 filled with sewage is pumped and discharged through the water pump 12;
step three: the sewage can be discharged into the water collecting box 23 through the water injection pipe 11, the weight of the water collecting box 23 is increased at this time, the supporting plate 22 also moves downwards along the sliding groove 19, and when the door-shaped plate 25 is submerged in water, one side of the membrane assembly 15 can be cleaned through the first hairbrush 26 and the second hairbrush 27;
step four: when the second hairbrush 27 cleans the membrane assembly 15, the second hairbrush 27 can deflect through the wave plate 29, the scraping plate 30 can clean the deflected second hairbrush 27, and after the sewage in the treatment tank 2 is emptied, the supporting plate 22 moves upwards to reset through the spring 21, and then the sludge in the treatment tank 2 is discharged through the first sewage discharge pipe 10;
step five: when the other treatment tank 2 is filled with sewage, the water injection pipe 11 is moved again through the float bowl 9, then the other water collecting box 23 is filled with sewage, the supporting plate 22 is lowered again, and then the first hairbrush 26 and the second hairbrush 27 can clean the other side of the membrane assembly 15;
step six: the two treatment tanks 2 are alternately filled with sewage into the aerobic tank 1 through the first to fifth steps, the sludge in the treatment tanks 2 is discharged through the first sewage discharge pipe 10, and then the two sides of the membrane assembly 15 are alternately cleaned by continuously enabling the first hairbrush 26 and the second hairbrush 27 through the two water collecting boxes 23;
step seven: when a large amount of sludge is accumulated in the aerobic tank 1, the sludge in the aerobic tank 1 is discharged into a sludge concentration tank through a second sewage discharge pipe 14, then the sewage filtered by the membrane component 15 is discharged into a disinfection tank, and the sewage is discharged after disinfection through the disinfection tank.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (4)
1. The utility model provides a sewage treatment device of sewage factory, includes grid pond, sand basin, anoxic tank, anaerobism pond, good oxygen pond (1), mud concentration pond and disinfection pond that are connected in proper order, its characterized in that, one side of good oxygen pond (1) is provided with two treatment ponds (2), treatment pond (2) are located between anaerobism pond and good oxygen pond (1), fixed mounting has stopper (3) between the opposite face of two treatment ponds (2), the top rotation of stopper (3) is connected with arc (4), the top of arc (4) slides and is provided with inlet tube (5), the top fixed mounting of arc (4) has limiting plate (6), arc (7) have all been seted up to the inner chamber opposite face of limiting plate (6), arc (7) are wave design, and the height in the middle of arc (7) is greater than the height at arc (7) both ends, slide between two arc (7) is provided with counterweight plate (8), the bottom fixed mounting of arc (4) has two floating barrel (9), the top of treating pond (2) is connected with arc (1) first side (10), the fixed mounting has two water pump (13) of two water pump (1) of water pump (13) of fixed mounting of one side of two water pump (1), one side of the aerobic tank (1) is fixedly connected with a second sewage drain pipe (14), a plurality of membrane assemblies (15) are rotatably connected between opposite surfaces of the inner wall of the aerobic tank (1), a connecting plate (16) is hinged between every two adjacent membrane assemblies (15), and an aeration pipe (17) is fixedly arranged at the bottom of the inner cavity of the aerobic tank (1);
the device comprises an aerobic tank (1), wherein fixed plates (18) are fixedly arranged on two sides of the top of the aerobic tank, sliding grooves (19) are formed in one side of each fixed plate (18), movable plates (20) are slidably arranged on the inner sides of the sliding grooves (19), two springs (21) are fixedly connected to the bottom of each movable plate (20), a supporting plate (22) is fixedly connected between the two movable plates (20), two water collecting boxes (23) are fixedly arranged on the top of each supporting plate (22), and a plurality of water leakage holes (24) are formed in the side walls of the water collecting boxes (23);
a plurality of door-shaped plates (25) are fixedly arranged at the bottom of the supporting plate (22), a plurality of first hairbrushes (26) are rotatably connected between the opposite inner sides of the door-shaped plates (25), a second hairbrush (27) is rotatably connected between the opposite inner sides of the door-shaped plates (25), a plurality of air outlet pipes (28) are fixedly connected at the top of the aeration pipe (17), and a plurality of wave plates (29) are fixedly arranged at the end parts of the second hairbrushes (27);
a scraping plate (30) is fixedly arranged between opposite surfaces of the inner side of the door template (25), and a plurality of rectangular grooves are formed in the bottom end of the scraping plate (30) in a penetrating manner;
the bottom end fixedly connected with hose (31) of water injection pipe (11), the bottom fixedly connected with buoy (32) of hose (31).
2. The sewage treatment device of the sewage plant according to claim 1, wherein the two floating barrels (9) are respectively positioned at the inner sides of the two treatment tanks (2), the water pump (12) is fixedly sleeved at the outer side of the water injection pipe (11), and the output end of the servo motor (13) is fixedly connected at one side of the membrane component (15).
3. A sewage treatment plant according to claim 1, wherein the second brush (27) is located below the first brush (26), and the scraper (30) is located directly above the second brush (27).
4. A method for sewage treatment using the sewage treatment apparatus for sewage plant according to any one of claims 1 to 3, comprising the steps of,
step one: firstly, filtering sewage through a grid pond, then precipitating sand and dust in the sewage through a sand sedimentation pond, then enabling the sewage to sequentially pass through an anoxic pond and an anaerobic pond, decomposing organic matters in the sewage, and then discharging the sewage in the anaerobic pond into a treatment pond (2) through a water inlet pipe (5);
step two: the floating barrel (9) moves upwards along with the rising of the water level in the treatment tank (2), then the counterweight disc (8) automatically inclines towards the end part of the arc-shaped groove (7), the water inlet pipe (5) injects sewage into the other treatment tank (2), and the treatment tank (2) filled with sewage is pumped and discharged through the water pump (12);
step three: the sewage can be discharged into the water collecting box (23) through the water injection pipe (11), the weight of the water collecting box (23) is increased at the moment, the supporting plate (22) also moves downwards along the sliding groove (19), and when the door-shaped plate (25) is submerged in water, one side of the membrane assembly (15) can be cleaned through the first hairbrush (26) and the second hairbrush (27);
step four: when the second hairbrush (27) cleans the membrane assembly (15), the second hairbrush (27) can deflect through the wave plate (29), the scraping plate (30) can clean the deflected second hairbrush (27), and after the sewage in the treatment tank (2) is emptied, the supporting plate (22) moves upwards to reset through the spring (21), and then the sludge in the treatment tank (2) is discharged through the first sewage discharge pipe (10);
step five: after the other treatment tank (2) is filled with sewage, the water injection pipe (11) is moved again through the floating barrel (9), then the other water collecting box (23) is filled with sewage, the supporting plate (22) is lowered again, and then the other side of the membrane component (15) can be cleaned by the first hairbrush (26) and the second hairbrush (27);
step six: the sewage is alternately injected into the aerobic tank (1) from the first step to the fifth step, the sludge in the treatment tank (2) is discharged through the first sewage discharge pipe (10), and then the two sides of the membrane component (15) are alternately cleaned by the first hairbrush (26) and the second hairbrush (27) continuously through the two water collecting boxes (23);
step seven: after a large amount of sludge is accumulated in the aerobic tank (1), the sludge in the aerobic tank (1) is discharged into a sludge concentration tank through a second sewage discharge pipe (14), then the sewage filtered by the membrane component (15) is discharged into a disinfection tank, and then the sewage is discharged after being disinfected by the disinfection tank.
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| KR101662491B1 (en) * | 2016-05-13 | 2016-10-07 | 일산종합건설(주) | Method of sewage treatment |
| CN111533388A (en) * | 2020-05-20 | 2020-08-14 | 安徽清蓝环保工程有限公司 | Sewage treatment system |
| CN112851036A (en) * | 2021-01-27 | 2021-05-28 | 广东迈基建设工程有限公司 | Multistage sewage treatment equipment and treatment method for municipal engineering |
| CN115108683A (en) * | 2022-07-25 | 2022-09-27 | 明达海洋工程有限公司 | Sewage treatment equipment for ecological environment treatment |
| CN116212649A (en) * | 2023-05-04 | 2023-06-06 | 常州江苏大学工程技术研究院 | Pneumatic cleaning device, sewage treatment system and treatment method |
| CN116730500A (en) * | 2023-06-20 | 2023-09-12 | 生态环境部南京环境科学研究所 | Domestic sewage treatment process and treatment equipment thereof |
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| KR101662491B1 (en) * | 2016-05-13 | 2016-10-07 | 일산종합건설(주) | Method of sewage treatment |
| CN111533388A (en) * | 2020-05-20 | 2020-08-14 | 安徽清蓝环保工程有限公司 | Sewage treatment system |
| CN112851036A (en) * | 2021-01-27 | 2021-05-28 | 广东迈基建设工程有限公司 | Multistage sewage treatment equipment and treatment method for municipal engineering |
| CN115108683A (en) * | 2022-07-25 | 2022-09-27 | 明达海洋工程有限公司 | Sewage treatment equipment for ecological environment treatment |
| CN116212649A (en) * | 2023-05-04 | 2023-06-06 | 常州江苏大学工程技术研究院 | Pneumatic cleaning device, sewage treatment system and treatment method |
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