CN212687705U - Continuous alternating MBBR (moving bed biofilm reactor) process water treatment device - Google Patents

Abstract

The utility model discloses a continuous alternating MBBR technology water treatment facilities, include the distribution tank that connects gradually from a left side to the right side, MBBR facultative anaerobic pond, MBBR contact oxidation pond, high-efficient sedimentation tank and clean water basin, one side upper end in distribution tank runs through and is equipped with the sewage pipe, the inboard upper end fixed mounting in distribution tank has the filter screen, one side inner wall bottom in distribution tank is fixed with first suction pump, the water outlet end of first suction pump is connected with first drinking-water pipe, the end of first drinking-water pipe all extends to MBBR facultative anaerobic pond with the end of second drinking-water pipe in, be connected with the intercommunication pipeline between MBBR facultative anaerobic pond and the MBBR contact oxidation pond, the equal fixed mounting in intercommunication pipeline both ends has anti-sticking structure, the inboard of MBBR facultative anaerobic pond all is equipped with processing module with MBBR contact oxidation pond's inboard. The utility model discloses can carry out the sewage after deposiing in the sludge settling tank and handle many times to reduce the loss of microorganism filler, improve treatment effect and resource utilization, realize the resource regeneration of waste water.

Description

Continuous alternating MBBR (moving bed biofilm reactor) process water treatment device

Technical Field

The utility model relates to a sewage treatment technical field specifically is a continuous alternating MBBR technology water treatment facilities.

Background

Moving bed bio-film reactor (MBBR for short) takes advantages of both traditional activated sludge process and biological contact oxidation process, and becomes a novel and efficient composite process treatment method. The core part is that suspended filler with specific gravity close to water is directly added into an aeration tank to be used as an active carrier of microorganisms, the microorganism is in a fluidized state under the action of aeration in the aeration tank and the lifting of water flow, and when the microorganisms are attached to the carrier, the floating carrier freely moves in a reactor along with the convolution and turning action of mixed liquid, thereby achieving the purpose of sewage treatment.

The MBBR technology is a sludge membrane integrated sewage treatment technology for adding suspended filler into an activated sludge reaction tank. The sewage continuously passes through the suspended filler in the MBBR reactor and forms biological films on the inner and outer surfaces of the filler gradually, and the sewage is purified under the action of microorganisms on the biological films. The MBBR process has the characteristics of strong denitrification capability, stable effluent quality, convenient operation and management, low energy consumption, small occupied area, small amount of excess sludge and the like, and is more and more emphasized in the field of sewage treatment in recent years. The suspended filler is a core component of the MBBR process, and the filler suspended in the reaction tank often flows along with the effluent, so that the filler is intercepted at a water outlet of the reaction tank in order to prevent the loss of the filler.

In some MBBR (moving bed biofilm reactor) processes, a grid is arranged on a water outlet hole of a reaction tank to intercept the suspended filler. However, the front surface of the grid collects incoming water, the impact force of water flow is large, so that the suspended filler is often blocked on the grid and further accumulated on the periphery of the water outlet of the reaction tank, and the water outlet is influenced; because the filler is required to be in full contact with water, and the filler has low density and is suspended in the water, the filler can not be in full contact with pollutants in the water after floating on the water surface, and the water quality treatment effect is influenced. Fixed filler also has the insufficient problem of contact with water, and free filler can flow along with water, in order to guarantee normal play water, just needs the manual work in time to clear up, brings great inconvenience for the operation maintenance.

And when the conventional MBBR sewage treatment equipment is used for sewage treatment, the removal efficiency of the pollutant matrix is low due to poor flowability of the microbial filler, and the sewage is low in recycling regeneration utilization rate and is not easy to popularize and apply.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a continuous alternating MBBR technology water treatment facilities, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a continuous alternating type MBBR (moving bed biofilm reactor) process water treatment device comprises a distribution tank, an MBBR facultative tank, an MBBR contact oxidation tank, a high-efficiency sedimentation tank and a clean water tank which are sequentially connected from left to right, wherein a sewage pipe is arranged at the upper end of one side of the distribution tank in a penetrating manner, a grid plate is arranged in the end part of the sewage pipe, a filter screen is fixedly arranged at the upper end of the inner side of the distribution tank, a first water suction pump is fixed at the bottom of the inner wall of one side of the distribution tank, a first water suction pipe is connected with the water outlet end of the first water suction pump, a second water suction pump is fixed at the bottom of the inner wall of one side of the MBBR contact oxidation tank, a second water suction pipe is connected with the water outlet end of the second water suction pump, the tail end of the first water suction pipe and the tail end of the second water suction pipe both extend into the MBBR facultative tank, a communicating pipeline is connected between the MBBR facultative tank and, the inner side of the MBBR facultative tank and the inner side of the MBBR contact oxidation tank are both provided with a processing module, the processing module comprises a grid limiting plate, the bottom of the grid limiting plate is fixedly connected with a plurality of hemispherical net-shaped filling frames, the inner sides of the net-shaped filling frames are provided with a plurality of filling balls, the filling balls are filled with spherical microbial affinity fillers, perforated aeration pipes are uniformly laid at the bottom of the inner side of the MBBR facultative tank, the bottoms of the perforated aeration pipes penetrate through the bottom shell of the MBBR facultative tank and are connected with a first aeration fan, microporous aerators are uniformly laid at the bottom of the inner side of the MBBR contact oxidation tank, the bottoms of the microporous aerators penetrate through the bottom shell of the MBBR contact oxidation tank and are connected with a second aeration fan, the bottom of the outer wall of the other side of the MBBR contact oxidation tank is fixedly provided with a mud pump, and the output end of the mud pump is connected with a mud conveying, the utility model discloses a sewage treatment device, including high-efficient sedimentation tank, sewage backflow pipe, clean water basin, filter screen, mud conveying pipe's tip extends to the inboard upper end of high-efficient sedimentation tank, the inboard top of high-efficient sedimentation tank is equipped with dross skimming mechanism, the inboard of high-efficient sedimentation tank is equipped with the sewage back flow, the one end of sewage back flow extends to the clean water basin is inboard, install the backwash pump on the sewage back flow, the other end of sewage back flow extends to the inboard upper end of distribution tank and is located the top of filter screen.

As a preferred technical scheme of the utility model, anti-sticking stopper structure include fixed connection in the rectangle casing at intercommunication pipeline both ends, the front side surface of rectangle casing is the arc, and has evenly seted up a plurality of inlet opening, the inboard packing of rectangle casing has filter module, filter module is the polyester fiber material.

As an optimal technical scheme of the utility model, the packing ball is formed by two hemisphere plastic housing concatenations, a plurality of through-hole has evenly been seted up on the surface of packing ball, the diameter of through-hole is less than the external diameter that the microorganism affinity packed.

As an optimized technical proposal of the utility model, the microorganism affinity filler is made of polyurethane.

As a preferred technical scheme of the utility model, dross skimming mechanism include fixed mounting in high-efficient sedimentation tank is with a plurality of motors of one side outer wall, the output shaft fixed mounting of motor has the cylinder, the fixed surface of cylinder installs the netted skimming plate of a plurality of, the skimming plate is the arc, one side upper end of high-efficient sedimentation tank is connected with leads the cinder notch, the end-to-end connection of leading the cinder notch has the dross collecting box.

As an optimal technical scheme of the utility model, MBBR contact oxidation pond inboard in the top of grid limiting plate is equipped with the inlet tube, the end of inlet tube extends to the inboard bottom in clean water basin, just turn right from a left side on the inlet tube and install flowmeter, self priming pump and flow automatically controlled valve in proper order.

As an optimized technical scheme of the utility model, the clean water basin is kept away from one side bottom of high-efficient sedimentation tank is connected with the drain pipe, install automatically controlled valve on the drain pipe.

As an optimal technical scheme of the utility model, the bottom of high-efficient sedimentation tank is connected with the sludge discharge pipe, install the dredge pump on the sludge discharge pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the gas distribution pond, MBBR facultative tank, MBBR contact oxidation pond, high-efficient sedimentation tank and clean water basin, at first the sewage that will handle has the sewage pipe to carry in the water distribution pond and fall into the water distribution pond after the filter screen filters, then through the mutual cooperation of first suction pump and first suction pipe in the water distribution pond with the sewage suction in the water distribution pond in MBBR facultative tank fully contact with the facultative microorganism affinity filler in the processing module, and aerate through the perforation aeration pipe, facultative treatment, thereby reach the purpose of denitrogenation, get rid of partial organic matter simultaneously, in this process, through rectangle casing and inlet opening and the cooperation of hemispherical netted filler frame in the anti-sticking stopper structure, can effectively prevent the loss of microorganism affinity filler; then flows into an MBBR contact oxidation tank through a communicating pipeline to be in adsorption contact with aerobic microbial affinity filler in a treatment module, simultaneously aerates the MBBR contact oxidation tank through the mutual matching of a microporous aerator and a second aeration fan, so that microorganisms on the aerobic microbial affinity filler are fully contacted with organic matters and oxygen in sewage, pollutants are easily adsorbed and degraded by the microorganisms, the sewage treatment efficiency is improved, then a second water suction pump is started to pump the aerobic treated sewage into the MBBR facultative tank again to be subjected to facultative treatment and then flow into the MBBR contact oxidation tank, and the circulation is repeated, so that denitrification and nitrification are alternately performed, the removal efficiency of pollutant substrates is improved, clean water treated in the MBBR contact oxidation tank can be pumped into a clear water tank for standby through the mutual matching of a self-sucking pump and a water inlet pipe, can monitor the flow of inlet pipe water through setting up the flowmeter, through mutually supporting of sewage back flow and backwash pump, can take out the upper sewage after deposiing mud in the high-efficient sedimentation tank to the water distribution pond once more in, carry out sewage treatment once more, so circulation is reciprocal, through mutually supporting of mud pipe and mud pump, can be regularly with the mud discharge in the high-efficient sedimentation tank.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the anti-jamming structure of the present invention;

fig. 3 is a cross-sectional view of the anti-jamming structure of the present invention;

FIG. 4 is a schematic structural view of a gear and a processing module according to the present invention;

FIG. 5 is a schematic structural view of the gear and the loading ball of the present invention;

fig. 6 is a first schematic structural view of the dross skimming mechanism of the present invention;

fig. 7 is a schematic diagram of a second construction of the dross skimming mechanism of the present invention.

In the figure: 1. a water distribution tank; 2. an MBBR facultative tank; 3. an MBBR contact oxidation pond; 4. a high-efficiency sedimentation tank; 5. a clean water tank; 6. a sewage pipe; 7. a grid plate; 8. a filter screen; 9. a first water pump; 10. a first pumping pipe; 11. a second water pump; 12. a second pumping pipe; 13. a communicating pipe; 14. an anti-jamming structure; 15. a processing module; 16. a grid limiting plate; 17. a mesh-shaped packing frame; 18. filling the ball; 19. a microbial affinity filler; 20. perforating an aeration pipe; 21. a first aeration fan; 22. a microporous aerator; 23. a second aeration fan; 24. a mud pump; 25. a mud conveying pipe; 26. a scum skimming mechanism; 27. a sewage return pipe; 28. a reflux pump; 29. a rectangular housing; 30. a water inlet hole; 31. a filtration module; 32. a through hole; 33. a motor; 34. a drum; 35. a skimming plate; 36. a slag guide port; 37. a scum collecting box; 38. a water inlet pipe; 39. a drain pipe; 40. a sludge discharge pipe; 41. a sludge discharge pump; 42. a self-priming pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a continuous alternating type MBBR technology water treatment facilities, includes from a left side to the right side distribution tank 1, MBBR facultative tank 2, MBBR contact oxidation pond 3, high-efficient sedimentation tank 4 and clean water pond 5 that connect gradually, one side upper end of distribution tank 1 runs through and is equipped with sewage pipe 6, sewage pipe 6's tip embeds there is grating board 7, the inboard upper end fixed mounting in distribution tank 1 has filter screen 8, one side inner wall bottom of distribution tank 1 is fixed with first suction pump 9, the play water end of first suction pump 9 is connected with first drinking-water pipe 10, one side inner wall bottom of MBBR contact oxidation pond 3 is fixed with second suction pump 11, the play water end of second suction pump 11 is connected with second drinking-water pipe 12, the end of first drinking-water pipe 10 with the end of second drinking-water pipe 12 all extends to in the MBBR facultative tank 2, BR facultative tank 2 with be connected with between the MBBR contact oxidation pond 3 and communicate pipeline 13, the two ends of the communicating pipeline 13 are fixedly provided with anti-blocking structures 14, the inner side of the MBBR facultative tank 2 and the inner side of the MBBR contact oxidation tank 3 are both provided with processing modules 15, each processing module 15 comprises a grid limiting plate 16, the bottom of each grid limiting plate 16 is fixedly connected with a plurality of hemispherical reticular filler frames 17, the inner side of each reticular filler frame 17 is provided with a plurality of filling balls 18, each filling ball 18 is filled with spherical microbial affinity filler 19, perforated aeration pipes 20 are uniformly laid at the bottom of the inner side of the MBBR facultative tank 2, the bottoms of the perforated aeration pipes 20 penetrate through the bottom shell of the MBBR facultative tank 2 and are connected with first aeration fans 21, microporous aerators 22 are uniformly laid at the bottom of the inner side of the MBBR contact oxidation tank 3, the bottoms of the microporous aerators 22 penetrate through the bottom shell of the MBBR contact oxidation tank 3 and are connected with second aeration fans 23, the opposite side outer wall bottom of MBBR contact oxidation pond 3 is fixed with mud pump 24, mud pump 24's output is connected with defeated mud pipe 25, the tip of defeated mud pipe 25 extends to the inboard upper end of high-efficient sedimentation tank 4, the inboard top of high-efficient sedimentation tank 4 is equipped with dross skimming mechanism 26, the inboard of high-efficient sedimentation tank 4 is equipped with sewage back flow 27, sewage back flow 27's one end extends to the clean water basin 5 is inboard, install backwash pump 28 on the sewage back flow 27, sewage back flow 27's the other end extends to the inboard upper end of distribution tank 1 is located the top of filter screen 8.

In this embodiment, preferably, the anti-jamming structure 14 includes a rectangular casing 29 fixedly connected to two ends of the communication pipeline 13, a front side surface of the rectangular casing 29 is arc-shaped and is uniformly provided with a plurality of water inlet holes 30, the inner side of the rectangular casing 29 is filled with a filter module 31, and the filter module 31 is made of polyester fiber.

In this embodiment, preferably, the filling ball 18 is formed by splicing two hemispherical plastic shells, a plurality of through holes 32 are uniformly formed on the surface of the filling ball 18, and the diameter of each through hole 32 is smaller than the outer diameter of the microbial affinity filler 19.

In this embodiment, the microbe affinity filler 19 is preferably made of polyurethane.

In this embodiment, preferably, the scum skimming mechanism 26 includes a plurality of motors 33 fixedly installed on the outer wall of the same side of the high-efficiency sedimentation tank 4, a roller 34 is fixedly installed on an output shaft of each motor 33, a plurality of netted scum plates 35 are fixedly installed on the surface of the roller 34, each scum plate 35 is arc-shaped, a scum guiding port 36 is connected to the upper end of one side of the high-efficiency sedimentation tank 4, and a scum collecting box 37 is connected to the tail end of the scum guiding port 36.

In this embodiment, preferably, the inside of the MBBR contact oxidation pond 3 is provided with a water inlet pipe 38 above the grid limiting plate 16, the end of the water inlet pipe 38 extends to the inside bottom of the clean water pond 5, and the water inlet pipe 38 is sequentially provided with a flow meter, a self-priming pump 42 and a flow electric control valve from left to right.

In this embodiment, preferably, the bottom of one side of the clean water tank 5, which is far away from the high-efficiency sedimentation tank 4, is connected with a drain pipe 39, and an electric control valve is installed on the drain pipe 39.

In this embodiment, preferably, the bottom of the high-efficiency sedimentation tank 4 is connected with a sludge discharge pipe 40, and a sludge discharge pump 41 is installed on the sludge discharge pipe 40.

The utility model discloses a theory of operation and use flow: when in use, firstly, sewage to be treated is conveyed into the distribution tank 1 through the sewage pipe 6 and falls into the distribution tank 1 after being filtered by the filter screen 8, then the sewage in the distribution tank 1 is pumped into the MBBR facultative aerobic tank 2 through the mutual matching of the first water suction pump 9 and the first water suction pipe 10 in the distribution tank 1 to be fully contacted with the facultative microbial affinity filler 19 in the treatment module 15, and is aerated through the perforated aeration pipe 20 to carry out facultative aerobic treatment, so that the aim of denitrification is fulfilled, and part of organic matters are removed simultaneously, and in the process, the rectangular shell 29 in the anti-blocking structure 14 is matched with the water inlet 30 and the hemispherical reticular filler frame 17, so that the loss of the facultative microbial affinity filler 19 can be effectively prevented; then flows into the MBBR contact oxidation tank 3 through the communicating pipeline 13 to be in adsorption contact with the aerobic microbe affinity filler 19 in the treatment module 15, and simultaneously aerates the MBBR contact oxidation tank 3 through the mutual matching of the micropore aerator 22 and the second aeration fan 23, so that microbes on the aerobic microbe affinity filler 19 are fully contacted with organic matters and oxygen in sewage, so that pollutants are easily adsorbed and degraded by the microbes, the sewage treatment efficiency is improved, then the second water suction pump 11 is started, the sewage after the aerobic treatment is pumped into the MBBR facultative tank 2 again through the second water suction pipe 12 in the MBBR contact oxidation tank 3 to be subjected to facultative treatment again, and then flows into the MBBR contact oxidation tank 3 again, and the sewage flows into the MBBR contact oxidation tank 3 again, so that the circulation is repeated, the denitrification and the nitrification treatment are alternately performed, the pollutant matrix removal efficiency is improved, and the clean water treated in the MBBR contact oxidation tank 3 can be pumped into the clean water tank 5 for standby through the mutual matching of the self-sucking pump 42 and the water inlet pipe 38 The flow of water in the water inlet pipe 38 can be monitored by arranging the flowmeter, and the upper layer sewage after the sludge is precipitated in the high-efficiency sedimentation tank 4 can be pumped into the distribution tank 1 again through the mutual matching of the sewage backflow pipe 27 and the backflow pump 28, so that the sewage treatment is carried out again, and the circulation is repeated, and the sludge in the high-efficiency sedimentation tank 4 can be discharged periodically through the mutual matching of the sludge discharge pipe 40 and the sludge discharge pump 41.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a continuous alternating formula MBBR technology water treatment facilities, includes distribution tank (1), MBBR facultative tank (2), MBBR contact oxidation pond (3), high-efficient sedimentation tank (4) and clean water basin (5) that connect gradually from a left side to the right side, its characterized in that: the sewage treatment device is characterized in that a sewage pipe (6) penetrates through the upper end of one side of the distribution tank (1), a grating plate (7) is arranged in the end portion of the sewage pipe (6), a filter screen (8) is fixedly arranged at the upper end of the inner side of the distribution tank (1), a first water suction pump (9) is fixed at the bottom of the inner wall of one side of the distribution tank (1), a first water suction pipe (10) is connected with the water outlet end of the first water suction pump (9), a second water suction pump (11) is fixed at the bottom of the inner wall of one side of the MBBR contact oxidation tank (3), a second water suction pipe (12) is connected with the water outlet end of the second water suction pump (11), the tail end of the first water suction pipe (10) and the tail end of the second water suction pipe (12) both extend into the MBBR facultative anaerobic tank (2), a communicating pipeline (13) is connected between the MBBR facultative anaerobic tank (3), and anti-blocking structures (14) are fixedly arranged at both ends of the communicating pipeline (13, the inner side of the MBBR facultative tank (2) and the inner side of the MBBR contact oxidation tank (3) are both provided with a treatment module (15), the treatment module (15) comprises a grid limiting plate (16), the bottom of the grid limiting plate (16) is fixedly connected with a plurality of hemispherical net-shaped filler frames (17), the inner side of each net-shaped filler frame (17) is provided with a plurality of filling balls (18), the filling balls (18) are filled with spherical microbial affinity fillers (19), perforated aeration pipes (20) are uniformly laid at the bottom of the inner side of the MBBR facultative tank (2), a shell bodies penetrating through the bottom of the perforated aeration pipes (20) of the MBBR facultative tank (2) are connected with first aeration fans (21), microporous aerators (22) are uniformly laid at the bottom of the MBBR contact oxidation tank (3), and a second aeration fans (23) are connected with the bottom shell bodies of the MBBR contact oxidation tank (3), the opposite side outer wall bottom of MBBR contact oxidation pond (3) is fixed with dredge pump (24), the output of dredge pump (24) is connected with defeated mud pipe (25), the tip of defeated mud pipe (25) extends to the inboard upper end of high-efficient sedimentation tank (4), the inboard top of high-efficient sedimentation tank (4) is equipped with dross skimming mechanism (26), the inboard of high-efficient sedimentation tank (4) is equipped with sewage back flow (27), the one end of sewage back flow (27) extends to clear water pond (5) are inboard, install backwash pump (28) on sewage back flow (27), the other end of sewage back flow (27) extends to the inboard upper end in distribution tank (1) is located the top of filter screen (8).

2. The continuous alternating MBBR process water treatment plant of claim 1, wherein: anti-sticking stopper structure (14) including fixed connection in rectangle casing (29) at intercommunication pipeline (13) both ends, the front side surface of rectangle casing (29) is the arc, and has evenly seted up a plurality of inlet opening (30), the inboard packing of rectangle casing (29) has filter module (31), filter module (31) are the polyester fiber material.

3. The continuous alternating MBBR process water treatment plant of claim 1, wherein: the filling ball (18) is formed by splicing two hemispherical plastic shells, a plurality of through holes (32) are uniformly formed in the surface of the filling ball (18), and the diameter of each through hole (32) is smaller than the outer diameter of the microbial affinity filler (19).

4. The continuous alternating MBBR process water treatment plant of claim 1, wherein: the microbial affinity filler (19) is made of polyurethane.

5. The continuous alternating MBBR process water treatment plant of claim 1, wherein: dross skimming mechanism (26) including fixed mounting in high-efficient sedimentation tank (4) are with a plurality of motors (33) of one side outer wall, the output shaft fixed mounting of motor (33) has cylinder (34), the fixed surface of cylinder (34) installs netted skimming plate (35) of a plurality of, skimming plate (35) are the arc, one side upper end of high-efficient sedimentation tank (4) is connected with slag guide opening (36), the end-to-end connection of slag guide opening (36) has dross collecting box (37).

6. The continuous alternating MBBR process water treatment plant of claim 1, wherein: MBBR contact oxidation pond (3) inboard in the top of grid limiting plate (16) is equipped with inlet tube (38), the end of inlet tube (38) extends to the inboard bottom in clean water basin (5), just turn right from a left side on inlet tube (38) and install flowmeter, self priming pump (42) and flow electric control valve in proper order.

7. The continuous alternating MBBR process water treatment plant of claim 1, wherein: the clean water tank (5) is far away from the bottom of one side of the high-efficiency sedimentation tank (4) and is connected with a drain pipe (39), and an electric control valve is installed on the drain pipe (39).

8. The continuous alternating MBBR process water treatment plant of claim 1, wherein: the bottom of the high-efficiency sedimentation tank (4) is connected with a sludge discharge pipe (40), and a sludge discharge pump (41) is installed on the sludge discharge pipe (40).

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