CN217809123U - Low-energy-consumption sewage treatment system adopting immersed ultrafiltration membrane method - Google Patents
Low-energy-consumption sewage treatment system adopting immersed ultrafiltration membrane method Download PDFInfo
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- CN217809123U CN217809123U CN202221726906.8U CN202221726906U CN217809123U CN 217809123 U CN217809123 U CN 217809123U CN 202221726906 U CN202221726906 U CN 202221726906U CN 217809123 U CN217809123 U CN 217809123U
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- 239000012528 membrane Substances 0.000 title claims abstract description 124
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 60
- 239000010865 sewage Substances 0.000 title claims abstract description 39
- 238000005265 energy consumption Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000005273 aeration Methods 0.000 claims abstract description 25
- 239000010802 sludge Substances 0.000 claims abstract description 19
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- 210000000476 body water Anatomy 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 15
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- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 208000034699 Vitreous floaters Diseases 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 4
- 238000004891 communication Methods 0.000 claims 1
- 239000002351 wastewater Substances 0.000 claims 1
- 238000005201 scrubbing Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 206010021143 Hypoxia Diseases 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
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- 238000007667 floating Methods 0.000 description 2
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- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 230000003851 biochemical process Effects 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
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- 238000006396 nitration reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
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- 238000009991 scouring Methods 0.000 description 1
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
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- 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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model belongs to the field of water treatment, a low energy consumption submergence formula ultrafiltration membrane process sewage treatment system is disclosed. The system comprises an integrated pump station, a grid pool, an adjusting pool, a multistage biochemical pool, an ultrafiltration membrane pool, a self-priming pump, a disinfection pool and a metering channel which are sequentially communicated; the ultrafiltration membrane pool comprises a pool body and an ultrafiltration device; the tank body comprises a tank body water inlet and a tank body sludge return port; the ultrafiltration device comprises a transmission mechanism, a sliding mechanism, a track, a lifting appliance and a membrane group device. The utility model discloses select the lower drive mechanism of power for use, through power take off, drive slide mechanism and be horizontal reciprocating motion along the track. Not only achieves the cleaning effect of large-air-volume aeration scrubbing of the conventional membrane group device, but also saves the energy consumption generated by the operation of an aeration fan.
Description
Technical Field
The utility model belongs to the water treatment field, more specifically relates to a low energy consumption submergence formula ultrafiltration embrane method sewage treatment system.
Background
At present, in the field of water treatment, the application of an immersed ultrafiltration Membrane (MBR) technology is very wide, and the share of water treatment projects adopting an MBR process is increasing day by day. In an MBR device, conventional air scrubbing is adopted for membrane filament scrubbing of a membrane tank at present, but the operation process of the MBR device often has problems as follows:
(1) The aeration energy consumption is high: the sludge concentration in the MBR device is very high, the MLSS concentration in normal operation is in the range of 8000-12000 mg/L, in order to increase the membrane flux and lighten the membrane pollution, the aeration intensity and flow rate must be increased, the aeration scouring effect is increased, and the energy consumption of the MBR is very high.
(2) High-strength aeration tangential scrubbing: so that the floc fibers in the mixed solution are continuously accumulated towards the end part of the membrane wire, and are closely attached and wound at the end part of the membrane wire and are difficult to remove. The compact layer on the surface of the membrane wire is abraded and damaged to a certain degree, so that the aperture and the hydrophilic performance of the membrane are changed, and the overall service life of the membrane is reduced.
(3) The denitrification effect is poor: the MBR device has high concentration of dissolved oxygen in the membrane tank due to high-intensity aeration, so that the denitrification rate is limited, and the total nitrogen removal is not ideal.
In conclusion, the membrane tank and membrane wire scrubbing energy consumption accounts for 30-40% of the energy consumption of the whole system, and is a main energy consumption unit. How to reduce the membrane silk scrubbing energy consumption of the membrane pool, and simultaneously, the membrane silk can be effectively scrubbed, and the problem of maintaining the stable operation of the system with higher flux and longer period is a difficult problem in the research in the industry.
Therefore, a new low-energy-consumption submerged ultrafiltration membrane sewage treatment system is urgently needed to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low energy consumption submergence formula ultrafiltration embrane method sewage treatment system to prior art not enough. The utility model discloses select the lower drive mechanism of power for use, through power take off, drive slide mechanism and be horizontal reciprocating motion along the track. Not only achieves the cleaning effect of large-air-volume aeration scrubbing of the conventional membrane group device, but also saves the energy consumption generated by the operation of an aeration fan.
In order to realize the aim, the utility model provides a low-energy-consumption immersed ultrafiltration membrane sewage treatment system, which comprises an integrated pump station, a grating pool, an adjusting pool, a multistage biochemical pool, an ultrafiltration membrane pool, a self-priming pump, a disinfection pool and a metering channel which are sequentially communicated;
the ultrafiltration membrane pool comprises a pool body and an ultrafiltration device; the tank body of the ultrafiltration membrane tank comprises a tank body water inlet and a tank body sludge return port; the ultrafiltration device comprises a transmission mechanism, a sliding mechanism, a track, a lifting appliance and a membrane module; the membrane group device is arranged on the lifting appliance, and an ultrafiltration membrane of the membrane group device is arranged towards the direction of the water inlet of the tank body; the lifting appliance is vertically connected with the sliding mechanism, the sliding mechanism is arranged on the sliding rail, the transmission mechanism is connected with one end of the sliding mechanism in the horizontal direction, and the transmission mechanism is used for driving the sliding mechanism to horizontally reciprocate on the sliding rail so as to drive the membrane module device to horizontally reciprocate in the tank body;
the multistage biochemical tank comprises an anaerobic tank, a multistage anoxic tank and a multistage aerobic tank; the multistage anoxic tank and the multistage aerobic tank are arranged at intervals and are communicated through a partition plate with a through hole at the upper part; the water outlet of the anaerobic tank is communicated with the water inlet of the first stage anoxic tank through a partition plate with a through hole at the upper part, and the water outlet of the last stage aerobic tank is communicated with the water inlet of the tank body and the backflow water inlet of each stage anoxic tank;
the water outlet of the regulating tank is communicated with the water inlet of the anaerobic tank and is communicated with the anoxic tank communicated with the water outlet of each stage of aerobic tank; and the sludge return port of the tank body is communicated with the return water inlet of the anaerobic tank.
Preferably, the sliding mechanism comprises at least two sliding wheels, and the at least two sliding wheels are arranged on the sliding rail.
Preferably, the membrane module ware includes the product water pipe, the product water pipe pass through self priming pump with the disinfection pond intercommunication.
Preferably, the tank body is made of steel concrete or carbon steel anti-corrosion material.
Preferably, the bottom of the tank body is of a V-shaped structure, and the inclination angle is 45-60 degrees.
Preferably, the integrated pump station comprises a crushing grid, a liquid level meter and a first lifting pump; the crushing grid is used for crushing solid matters in the integrated pump station; the first lifting pump water outlet pipe is connected with the grating tank.
Preferably, the grating basin is provided with a mechanical grating for separating solid floating objects entering the grating basin from the sewage.
Preferably, a first submersible stirrer, and optionally a liquid level monitor meter and a second lift pump are arranged in the regulating reservoir.
Preferably, a second submersible stirrer is arranged in the anaerobic pool; a third submersible stirrer is arranged in the multistage anoxic tank; and aeration equipment is arranged in the multi-stage aerobic tank.
Preferably, the aeration device is connected with a blower.
The technical scheme of the utility model beneficial effect as follows:
(1) Along with the prolonging of water production time, sludge can be attached to the surface of the membrane wire to block membrane pores, and the water production efficiency is influenced. The utility model discloses select for use the lower drive mechanism of power, through power take off, drive slide mechanism (the bottom is furnished with the movable pulley) and be horizontal reciprocating motion along the track. The membrane module device and the sliding mechanism do horizontal reciprocating motion together through the lifting appliance. Through membrane group ware horizontal reciprocating motion, membrane silk and the interior sewage of membrane pond keep the running state relatively, and the membrane silk shakes repeatedly in sewage, makes membrane group ware in the water production in-process, and mud is difficult to be attached to membrane silk surface, has not only reached the clean effect that conventional membrane group ware large air volume aeration was scrubbed, has saved the energy consumption that the operation of aeration fan produced moreover.
(2) The utility model discloses a horizontal reciprocating motion of membrane group ware makes the relative motion of membrane silk and sewage also keep at the horizontal direction, and this fundamentally has avoided adopting conventional aeration to clean that membrane group ware arouses: the rising scrubbing bubbles bring the sludge and the floc fibers into the end parts of the membrane wires, so that the end parts are wound and hardened.
(3) The utility model discloses a horizontal reciprocating motion of membrane group ware, the membrane silk of production cleans the mode, is the rinsing of simple membrane silk in sewage, and relative continuous or pulse aeration cleans the mode more softly, cleans for a long time that the damage to membrane silk surface is littleer, more helps promoting the whole operational life of membrane.
(4) The utility model discloses a vibration of membrane group ware horizontal reciprocating motion is cleaned and is replaced conventional aeration and clean, makes the interior dissolved oxygen level of membrane pool more be close the operating condition of oxygen deficiency technology. The water outlet of the last stage aerobic tank of the multi-stage biochemical tank is partially returned to each front stage anoxic tank, and the rest part of sewage enters the ultrafiltration membrane tank together with nitrite and nitrate, so that the denitrification reaction is further completed in the ultrafiltration membrane tank under the anoxic state, and the total nitrogen value of the effluent of the system can be effectively reduced.
(5) The utility model discloses dissolved oxygen level is close the operating condition of oxygen deficiency technology in the milipore filter pond, and membrane pond mud backward flow can direct reflux to the most front anaerobism pond in multistage biochemical pond. Compared with the sludge backflow flow of the conventional aeration scrubbing membrane bioreactor (backflow sludge needs to flow back to the aerobic section first, then flow back to the anoxic section from the aerobic section, and then flow back to the anaerobic section from the anoxic section), at least two stages of backflow lifting can be saved, and therefore, in the sludge backflow flow, the lifting energy consumption can be reduced to a greater extent.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
Fig. 1 shows a schematic structural diagram of a sewage treatment system by a low-energy-consumption immersion type ultrafiltration membrane method provided by the embodiment 1 of the present invention.
Fig. 2 (a) shows a schematic plane structure diagram of an ultrafiltration device of a low-energy-consumption immersed ultrafiltration membrane sewage treatment system provided in embodiment 1 of the present invention.
Fig. 2 (b) shows a schematic sectional structure view of 1-1 of an ultrafiltration device of a low-energy-consumption submerged ultrafiltration membrane sewage treatment system provided in embodiment 1 of the present invention.
Fig. 2 (c) shows a schematic 2-2 sectional structure diagram of an ultrafiltration device of a low-energy-consumption immersion type ultrafiltration membrane method sewage treatment system provided by the embodiment of the invention.
The reference numerals are illustrated below:
1. an integrated pump station; 1-1, crushing a grid; 1-2, a liquid level meter; 1-3, a first lift pump;
2. a grid tank; 2-1, mechanical grating;
3. a regulating reservoir;
4. a multi-stage biochemical tank; 4-1, a second submersible stirrer; 4-2, a third submersible stirrer; 4-3, aeration equipment; 4-4, a blower; 4-5, an anaerobic tank; 4-6, an anoxic tank; 4-7, an aerobic tank;
5. an ultrafiltration membrane tank; 5-1, a transmission mechanism; 5-2, a sliding mechanism; 5-3, track; 5-4, a lifting appliance; 5-5, a membrane combiner; 5-6, a sliding wheel; 5-7, a water inlet of the tank body; 5-8, a tank sludge return port; 5-9, self-priming pump;
6. a disinfection tank;
7. and (6) measuring the ditch.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides a low energy consumption immersed ultrafiltration membrane sewage treatment system, which comprises an integrated pump station, a grid pool, an adjusting pool, a multistage biochemical pool, an ultrafiltration membrane pool, a self-priming pump, a disinfection pool and a metering channel which are sequentially communicated;
the ultrafiltration membrane pool comprises a pool body and an ultrafiltration device; the tank body of the ultrafiltration membrane tank comprises a tank body water inlet and a tank body sludge return port; the ultrafiltration device comprises a transmission mechanism, a sliding mechanism, a track, a lifting appliance and a membrane group device; the membrane group device is arranged on the lifting appliance, and an ultrafiltration membrane of the membrane group device is arranged towards the direction of the water inlet of the tank body; the lifting appliance is vertically connected with the sliding mechanism, the sliding mechanism is arranged on the sliding rail, the transmission mechanism is connected with one end of the sliding mechanism in the horizontal direction, and the transmission mechanism is used for driving the sliding mechanism to horizontally reciprocate on the sliding rail so as to drive the membrane module device to horizontally reciprocate in the tank body;
the multistage biochemical tank comprises an anaerobic tank, a multistage anoxic tank and a multistage aerobic tank; the multistage anoxic tank and the multistage aerobic tank are arranged at intervals and are communicated through a partition plate with a through hole at the upper part; the water outlet of the anaerobic tank is communicated with the water inlet of the first stage anoxic tank through a partition plate with a through hole at the upper part, and the water outlet of the last stage aerobic tank is communicated with the water inlet of the tank body and the backflow water inlet of each stage anoxic tank;
the water outlet of the regulating tank is communicated with the water inlet of the anaerobic tank and is communicated with the anoxic tank communicated with the water outlet of each stage of aerobic tank; the tank body sludge return port is communicated with the return water inlet of the anaerobic tank.
The utility model discloses in, the theory of operation in ultrafiltration membrane pond: the installation of membrane group ware will satisfy the milipore filter orientation of membrane group ware the cell body water inlet sets up, and the membrane module is put promptly and is kept unanimous with the membrane tank direction of intaking, and sewage can follow the membrane module clearance and flow through membrane group ware, ensures that the whole flow state of membrane tank is unobstructed. The sludge-water mixture in the ultrafiltration membrane pool is blocked in the membrane pool by a sludge capsule under the suction action of a self-sucking pump, and the clear water is collected to a water production pipe of the membrane group device through compact micropores on the surface of the membrane under the suction pressure and is discharged to the disinfection pool through the self-sucking pump. The sewage after the disinfection treatment automatically flows into a metering channel, and the effluent is discharged after metering.
The utility model discloses in, as preferred scheme, multistage biochemical pond is one-level anaerobism + tertiary AO biochemical processes, and sewage can be distributed to the anaerobic (lack) oxygen section of each grade of biochemical pond with the form that the multiple spot was intake, releases phosphorus and the hydrolytic acidification back of oxygen deficiency through the anaerobism, gets into the good oxygen pond, accomplishes the oxidative decomposition of organic matter, the absorption of phosphorus and the nitration conversion process of nitrite, nitrate. And part of the effluent of the last stage of aerobic tank is refluxed to each stage of anoxic tank, and denitrifying bacteria in the anoxic tank perform denitrification treatment on nitrite and nitrate in the reflux liquid by using organic matters in the influent water as a carbon source to complete denitrification reaction.
In one example, the sliding mechanism includes at least two sliding wheels disposed on the sliding track.
In one example, the membrane module includes a water production tube that communicates with the disinfection tank through the self-priming pump.
In one example, the tank body is made of steel concrete or carbon steel anti-corrosion material.
In one example, the bottom of the tank body is of a V-shaped structure, and the inclination angle is 45-60 degrees.
In one example, the integrated pump station includes a pulverizing grate, a level gauge, and a first lift pump; the crushing grid is used for crushing solid matters in the integrated pump station; the first lifting pump water outlet pipe is connected with the grating tank.
In the utility model, sewage automatically flows into the integrated pump station through the collecting pipe network, and the large floating objects in the water are firstly crushed into fine particles by the crushing grid, so that the subsequent equipment such as a water pump, a pipeline and the like is prevented from being blocked; after the liquid level gauge detects that the liquid level in the integrated pump station reaches the pump starting liquid level, the lifting pump is lifted and started, and sewage is lifted to the grid pond.
In one example, the grid basin is provided with a mechanical grid for separating fine solid floaters entering the grid basin from the sewage.
In one example, a first submersible mixer is disposed within the conditioning tank, and optionally a liquid level monitoring meter and a second lift pump are also disposed.
The utility model discloses in, be provided with mechanical grid in the grid pond, can salvage the separation out with tiny suspended solid in the sewage, then sewage flows automatically and gets into the equalizing basin. Be equipped with first dive agitator in the equalizing basin, prevent the pollutant deposit, after the equalizing basin liquid level reachd the overflow height, can flow by oneself and get into multistage biochemical pond.
In one example, a second submersible mixer is disposed within the anaerobic tank; a third submersible stirrer is arranged in the multistage anoxic tank; and aeration equipment is arranged in the multistage aerobic tank.
In the utility model, a second submersible stirrer is arranged in the anaerobic section tank, and a third submersible stirrer is arranged in the multistage anoxic tank, so that the activated sludge and the sewage can be kept to be fully mixed, and a plug flow effect is achieved; and aeration equipment is arranged in the multi-stage aerobic tank, so that the activated sludge and the sewage can be kept to be fully mixed, and an oxygenation effect is achieved.
In one example, the aeration device is connected to a blower.
The utility model discloses in, the disinfection technology in disinfection pond can adopt any one or the mode of combination disinfection in the disinfection of medicament such as ultraviolet ray disinfection, ozone disinfection or sodium hypochlorite to carry out disinfection treatment to system's tail water.
Example 1
The embodiment provides a low-energy-consumption sewage treatment system adopting an immersed ultrafiltration membrane method, and as shown in fig. 1 and 2 (a) - (c), the system comprises an integrated pump station 1, a grating tank 2, an adjusting tank 3, a multistage biochemical tank 4, an ultrafiltration membrane tank 5, self-priming pumps 5-9, a disinfection tank 6 and a metering channel 7 which are sequentially communicated;
the integrated pump station 1 comprises a crushing grid 1-1, a liquid level meter 1-2 and a first lifting pump 1-3; in the embodiment, sewage automatically flows into the integrated pump station 1 through a collection pipe network, and the crushing grating 1-1 is used for crushing larger floaters in the water into fine particles to prevent subsequent equipment such as a water pump, a pipeline and the like from being blocked; after the liquid level meter 1-2 detects that the liquid level in the integrated pump station 1 reaches the pump starting liquid level, the first lifting pump 1-3 is lifted and started, and sewage is lifted to the grating tank 2.
The grid pond is provided with a mechanical grid 2-1, so that fine suspended matters in the sewage can be salvaged and separated, and then the sewage automatically flows into the adjusting pond 3.
A first submersible stirrer (not shown) is arranged in the adjusting tank 3 to prevent pollutants from depositing, and the liquid level of the adjusting tank 3 can automatically flow into the multistage biochemical tank 4 after reaching the overflow height.
The ultrafiltration membrane tank 5 comprises a tank body and an ultrafiltration device; the tank body of the ultrafiltration membrane tank comprises a tank body water inlet 5-7 and a tank body sludge return port 5-8, the tank body is made of carbon steel anti-corrosion materials, the bottom of the tank body is of a V-shaped structure, and the inclination angle is 45 degrees; the ultrafiltration device comprises a transmission mechanism 5-1, a sliding mechanism 5-2, a track 5-3, a lifting appliance 5-4 and a membrane group device 5-5; the membrane group device 5-5 is arranged on the lifting appliance 5-4, and an ultrafiltration membrane of the membrane group device 5-5 is arranged towards the direction of the water inlet 5-7 of the tank body; the lifting appliance 5-4 is vertically connected with the sliding mechanism 5-2, the sliding mechanism 5-2 comprises two sliding wheels 5-6, the two sliding wheels 5-6 are arranged on the sliding rail 5-3, the transmission mechanism 5-1 is connected with one end of the sliding mechanism 5-2 in the horizontal direction, and the transmission mechanism 5-1 is used for driving the sliding mechanism 5-2 to horizontally reciprocate on the sliding rail 5-3 so as to drive the membrane module device 5-5 to horizontally reciprocate in the tank body; the membrane module 5-5 comprises a water production pipe (not shown) which is communicated with the disinfection tank 6 through the self-priming pump 5-9.
The multistage biochemical tank 4 comprises an anaerobic tank 4-5, a multistage anoxic tank 4-6 and a multistage aerobic tank 4-7; the multistage anoxic tanks 4-6 and the multistage aerobic tanks 4-7 are arranged at intervals and are communicated through a partition plate with a through hole at the upper part; the water outlet of the anaerobic tank 4-5 is communicated with the water inlet of the first stage anoxic tank 4-6 through a partition plate with a through hole at the upper part, and the water outlet of the last stage aerobic tank 4-7 is communicated with the water inlet 5-7 of the tank body and the backflow water inlet of each stage anoxic tank 4-6;
the water outlet of the regulating tank 3 is communicated with the water inlets of the anaerobic tanks 4-5 and the anoxic tanks 4-6 communicated with the water outlets of the aerobic tanks 4-7 at each stage; and the tank sludge return port 5-8 is communicated with a return water inlet of the anaerobic tank 4-5.
A second submersible stirrer 4-1 is arranged in the anaerobic tank 4-5; a third submersible stirrer 4-2 is arranged in the multistage anoxic tank 4-6; and an aeration device 4-3 is arranged in the multistage aerobic tank 4-7, and the aeration device 4-3 is connected with an air blower 4-4.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A low-energy-consumption sewage treatment system adopting an immersed ultrafiltration membrane method is characterized by comprising an integrated pump station, a grid pool, an adjusting pool, a multistage biochemical pool, an ultrafiltration membrane pool, a self-priming pump, a disinfection pool and a metering channel which are sequentially communicated;
the ultrafiltration membrane pool comprises a pool body and an ultrafiltration device; the tank body of the ultrafiltration membrane tank comprises a tank body water inlet and a tank body sludge return port; the ultrafiltration device comprises a transmission mechanism, a sliding mechanism, a track, a lifting appliance and a membrane group device; the membrane group device is arranged on the lifting appliance, and an ultrafiltration membrane of the membrane group device is arranged towards the direction of the water inlet of the tank body; the lifting appliance is vertically connected with the sliding mechanism, the sliding mechanism is arranged on the track, the transmission mechanism is connected with one end of the sliding mechanism in the horizontal direction, and the transmission mechanism is used for driving the sliding mechanism to horizontally reciprocate on the track so as to drive the membrane module device to horizontally reciprocate in the pool body;
the multistage biochemical tank comprises an anaerobic tank, a multistage anoxic tank and a multistage aerobic tank; the multistage anoxic tank and the multistage aerobic tank are arranged at intervals and are communicated through a partition plate with a through hole at the upper part; the water outlet of the anaerobic tank is communicated with the water inlet of the first stage anoxic tank through a partition plate with a through hole at the upper part, and the water outlet of the last stage aerobic tank is communicated with the water inlet of the tank body and the backflow water inlet of each stage anoxic tank;
the water outlet of the regulating tank is communicated with the water inlet of the anaerobic tank and the anoxic tank communicated with the water outlet of each stage of aerobic tank; the tank body sludge return port is communicated with the return water inlet of the anaerobic tank.
2. The low energy submerged ultrafiltration membrane process wastewater treatment system of claim 1, wherein the sliding mechanism comprises at least two sliding wheels disposed on the track.
3. The low energy consumption submerged ultrafiltration membrane process wastewater treatment system of claim 1, wherein the membrane module comprises a water production pipe which is in communication with the disinfection tank through the self-priming pump.
4. The low-energy-consumption submerged ultrafiltration membrane method sewage treatment system as claimed in claim 1, wherein the tank body is made of a steel concrete or a carbon steel anticorrosive material.
5. The low-energy-consumption submerged ultrafiltration membrane sewage treatment system as claimed in claim 1, wherein the bottom of the tank body is of a V-shaped structure, and the inclination angle is 45-60 °.
6. The low-energy-consumption submerged ultrafiltration membrane process sewage treatment system of claim 1, wherein the integrated pump station comprises a pulverizing grid, a level gauge and a first lift pump; the crushing grid is used for crushing solid matters in the integrated pump station; the first lifting pump water outlet pipe is connected with the grating tank.
7. The low energy submerged ultrafiltration membrane process wastewater treatment system of claim 1, wherein the grid basin is provided with mechanical grids for separating solid floaters entering the grid basin from wastewater.
8. The low energy consumption submerged ultrafiltration membrane process sewage treatment system of claim 1 wherein a first submersible agitator, and optionally a liquid level monitor meter and a second lift pump, are provided within the conditioning tank.
9. The low-energy-consumption submerged ultrafiltration membrane process sewage treatment system of claim 1, wherein a second submersible mixer is provided in the anaerobic tank; a third submersible stirrer is arranged in the multistage anoxic tank; and aeration equipment is arranged in the multistage aerobic tank.
10. The low energy submerged ultrafiltration membrane process wastewater treatment system of claim 9, wherein said aeration device is connected to a blower.
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