Rural domestic sewage treatment integrated MBBR (Moving Bed Biofilm Reactor) equipment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to rural domestic sewage treatment integrated moving bed biofilm reactor (MBBR) equipment which comprises a purification box, and a sludge settling zone purification box is internally provided with a first partition plate and a second partition plate respectively. The interior of the purification box is divided into an anaerobic zone, an aerobic zone and a sludge settling zone by a first partition plate and a second partition plate of the sludge settling zone, MBBR filler used for reacting with sewage is placed in the anaerobic zone of the sludge settling zone, garbage in the sewage can be screened through a screening assembly, and the situation that a large amount of garbage is accumulated in the sewage, so that the purification effect of the sewage is affected is prevented; sewage in the aerobic zone is aerated by utilizing the aeration assembly, so that the decomposition process of organic matters is accelerated, the chemical oxygen demand and biological oxygen demand levels are reduced, the sewage treatment efficiency is improved, sludge in the sewage can be filtered by utilizing the filtering assembly, and the occupied area of equipment is reduced through the purification box; the rural sewage treatment is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely relates to a rural domestic sewage treatment integrated MBBR equipment. BACKGROUND

[0002] MBBR (Moving Bed Biofilm Reactor, moving bed biofilm reactor) process is an innovative sewage treatment technology, which combines the advantages of activated sludge method and biofilm method, and is used for treating domestic sewage and industrial wastewater. MBBR process suspends the growth of microbial carriers in the reactor, so that microorganisms form a biofilm on the surface of the carrier, thereby realizing the removal of pollutants in sewage. Due to the attachment growth of the biofilm, MBBR process can maintain a high biomass, which helps to improve the efficiency of sewage treatment.

[0003] Chinese patent authorized announcement number CN210683533U discloses a kind of rural domestic sewage treatment integrated equipment, including anoxic MBBR pool, anaerobic MBBR pool, aerobic MBBR pool, inclined plate sedimentation tank and equipment room, anoxic MBBR pool, anaerobic MBBR pool, aerobic MBBR pool, inclined plate sedimentation tank and equipment room are from left to right in turn and side by side centralized design, anoxic MBBR pool, anaerobic MBBR pool, aerobic MBBR pool and inclined plate sedimentation tank are sequentially connected from left to right, one side end of anoxic MBBR pool is connected with perforated pipe water inlet, the inner cavity rear side of equipment room is in turn installed with sludge pool, backwash water tank and filter matched with inclined plate sedimentation tank from left to right;The whole device of the utility model anoxic MBBR pool, anaerobic MBBR pool, aerobic MBBR pool, inclined plate sedimentation tank and equipment room are from left to right in turn and side by side centralized design, sewage treatment process intensification design, processing speed is greatly improved;And the volume of the whole device is greatly reduced, and the laying of the whole device requires less land occupation, and is convenient for large-scale popularization and use.

[0004] The above-mentioned MBBR integrated equipment water treatment equipment is sequentially provided with anaerobic MBBR pool, aerobic MBBR pool, inclined plate sedimentation tank and equipment room in anoxic MBBR pool, anoxic MBBR pool, anaerobic MBBR pool, aerobic MBBR pool, inclined plate sedimentation tank, so that the volume of the whole equipment is large, and the occupied area is large, so that it is not convenient to apply to rural sewage treatment process. SUMMARY

[0005] In view of the above problems, the rural domestic sewage treatment integrated MBBR equipment is provided, the screening assembly can screen the garbage in the sewage, prevents the sewage from being stacked with a large amount of garbage, and influences the purification effect of the sewage, then the aeration assembly is used for carrying out aeration work on the sewage in the aerobic zone, so that the decomposition process of the organic matter is accelerated, the chemical oxygen demand and the biological oxygen demand level are reduced, and the sewage treatment efficiency is improved, finally the filter assembly can filter the sludge in the sewage, the occupation area of the equipment is reduced through the purification tank, and the rural sewage treatment is facilitated.

[0006] To solve the prior art problems, the utility model provides a kind of rural domestic sewage treatment integrated MBBR equipment, including purification tank, the inside of the purification tank is separately provided with first baffle and second baffle, the first baffle and second baffle divide the inside of purification tank into anaerobic zone, aerobic zone and sludge sedimentation zone, MBBR filler for reaction with sewage is placed in the inside of anaerobic zone, screening assembly for screening garbage is provided at the top of anaerobic zone, aeration assembly for aeration to sewage is provided at the top of aerobic zone, filter assembly for filtering sludge is provided in the inside of sludge sedimentation zone.

[0007] Preferably, the screening assembly includes a flow guide frame and a flow distribution frame disposed at the top of the anaerobic zone, the flow guide frame and the flow distribution frame are in communication with each other, the flow distribution frame is provided with a screening plate for screening garbage inside, and the screening plate is inclined, and the flow distribution frame is movably provided with a collection frame for collecting garbage inside.

[0008] Preferably, the inner wall of the collection frame is provided with a through hole for water leakage, and the through holes in the flow distribution frame and the anaerobic zone are in communication.

[0009] Preferably, the aeration assembly includes a gas pump and a drive box disposed at the top of the aerobic zone, the input end of the gas pump is communicated with an air inlet pipe, the output end of the gas pump is communicated with the inside of the drive box through a pipeline, one end of the drive box is communicated with an air outlet pipe, one end of the air outlet pipe extends into the inside of the aerobic zone and is communicated with an aeration spiral pipe, and the aeration spiral pipe is provided with a plurality of aeration nozzles.

[0010] Preferably, the inside of the drive box is rotatably provided with an impeller, the bottom of the impeller is rotatably provided with a stirring rod, one end of the stirring rod extends into the inside of the aerobic zone, and the outside of the stirring rod is provided with a second bevel gear.

[0011] Preferably, the filter assembly comprises support blocks arranged on the second partition sidewall and the purification tank inner wall, spring telescopic rods are arranged on the top of the two support blocks, the movable ends of the spring telescopic rods are provided with vibrating sieve plates for filtering sludge, guide-out frames for discharging sludge are arranged on the two sides of the vibrating sieve plates, moving grooves for the guide-out frames to move are formed in the two side outer walls of the purification tank, a rotating shaft is rotatably arranged in the sludge sedimentation area, one end of the rotating shaft is rotatably connected with the purification tank, the other end of the rotating shaft is provided with a first bevel gear meshingly connected with a second bevel gear, and a plurality of abutting blocks abutting against the vibrating sieve plates are arranged on the outer portion of the rotating shaft.

[0012] The present application has the following beneficial effects compared with the prior art:

[0013] The screening assembly can screen the garbage in the sewage, prevent a large amount of garbage from accumulating in the sewage and affecting the purification effect of the sewage, then the aeration assembly is used for performing aeration work on the sewage in the aerobic zone, so that the decomposition process of the organic matter is accelerated, the chemical oxygen demand and the biological oxygen demand level are reduced, and the treatment efficiency of the sewage is improved, finally the filter assembly can filter the sludge in the sewage, the occupation area of the equipment is reduced through the purification tank, and the rural sewage treatment is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a kind of rural domestic sewage treatment integrated MBBR equipment's overall structure schematic view.

[0015] Figure 2 It is a kind of rural domestic sewage treatment integrated MBBR equipment in purification tank's internal structure schematic view.

[0016] Figure 3 It is a kind of rural domestic sewage treatment integrated MBBR equipment in screening assembly's structure schematic view.

[0017] Figure 4 It is a kind of rural domestic sewage treatment integrated MBBR equipment in aeration assembly's structure schematic view.

[0018] Figure 5 It is a kind of rural domestic sewage treatment integrated MBBR equipment in vibrating sieve plate's structure schematic view.

[0019] Figure 6 It is a kind of rural domestic sewage treatment integrated MBBR equipment in abutting block's structure schematic view.

[0020] The figure marks are: 1, purification tank; 2, vibrating sieve plate; 3, first partition; 4, air pump; 5, second partition; 6, flow guide frame; 7, shunt frame; 8, drive box; 9, air outlet pipe; 10, supporting block; 11, screening plate; 12, collection frame; 13, impeller; 14, stirring rod; 15, first bevel gear; 16, rotating rod; 17, second bevel gear; 18, aeration spiral pipe; 19, aeration nozzle; 20, spring telescopic rod; 21, abutting block; 22, lead-out frame; 23, anaerobic zone; 24, aerobic zone; 25, sludge sedimentation zone. DETAILED DESCRIPTION

[0021] In order to further understand the features, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0022] As Figures 1 to 6 shown, the utility model provides:

[0023] A rural domestic sewage treatment integrated MBBR equipment, including purification tank 1, the inside of purification tank 1 is provided with first partition 3 and second partition 5 respectively, and the inside of purification tank 1 is divided into anaerobic zone 23, aerobic zone 24 and sludge sedimentation zone 25 by first partition 3 and second partition 5, MBBR filler for reacting with sewage is placed in the inside of anaerobic zone 23, screening assembly for screening garbage is provided at the top of anaerobic zone 23, aeration assembly for aerating sewage is provided at the top of aerobic zone 24, and filter assembly for filtering sludge is provided in the inside of sludge sedimentation zone 25.

[0024] The garbage in the sewage can be screened by the screening assembly, so that the accumulation of a large amount of garbage in the sewage is prevented, the purification effect of the sewage is affected, then the sewage in the aerobic zone 24 is aerated by the aeration assembly, so that the decomposition process of the organic matter is accelerated, the chemical oxygen demand and the biological oxygen demand level are reduced, and the treatment efficiency of the sewage is improved, finally the sludge in the sewage can be filtered by the filter assembly, the occupied area of the equipment is reduced by the purification tank 1, and the rural sewage treatment is facilitated.

[0025] As Figure 3 shown, the screening assembly includes flow guide frame 6 and shunt frame 7 provided at the top of anaerobic zone 23, the inside of flow guide frame 6 and shunt frame 7 is connected, the inside of shunt frame 7 is provided with screening plate 11 for screening garbage, the screening plate 11 is inclined, and the inside of shunt frame 7 is movably provided with collection frame 12 for collecting garbage.

[0026] The garbage in the sewage can be screened by the screening plate 11 inside the guide frame 6, and the sewage will fall inside the shunt frame 7 through the through hole of the screening plate 11, and then flow into the inside of the anaerobic zone 23, and the garbage contained in the sewage will stay above the screening plate 11 and fall into the inside of the collection frame 12 under the impact of the sewage.

[0027] As shown in Figure 3 , the inner wall of the collection frame 12 is provided with a through hole for water leakage, and the inside of the shunt frame 7 and the inside of the anaerobic zone 23 are provided with a through hole in communication.

[0028] The through hole in the inner wall of the collection frame 12 allows the water stains contained in the garbage to flow into the inside of the shunt frame 7 and further into the inside of the aerobic zone 24.

[0029] As shown in Figure 4 , the aeration assembly includes a gas pump 4 arranged at the top of the aerobic zone 24 and a drive box 8, the input end of the gas pump 4 is communicated with an air inlet pipe, the output end of the gas pump 4 is communicated with the inside of the drive box 8 through a pipeline, one end of the drive box 8 is communicated with an air outlet pipe 9, one end of the air outlet pipe 9 extends into the inside of the aerobic zone 24 and is communicated with an aeration spiral pipe 18, the inside of the aeration spiral pipe 18 is communicated with a plurality of aeration nozzles 19.

[0030] The gas pump 4 introduces the external air into the inside of the drive box 8, and then into the inside of the air outlet pipe 9 and the aeration spiral pipe 18 by the drive box 8, and then sprayed out by the aeration nozzles 19, which can aerate the sewage inside the aerobic zone 24, thereby accelerating the decomposition process of organic matter, reducing the chemical oxygen demand and biological oxygen demand level, and improving the treatment efficiency of the sewage.

[0031] As shown in Figure 4 , the inside of the drive box 8 is rotatably provided with an impeller 13, the bottom of the impeller 13 is rotatably provided with a stirring rod 14, one end of the stirring rod 14 extends into the inside of the aerobic zone 24, and the outside of the stirring rod 14 is provided with a second bevel gear 17.

[0032] The impeller 13 is rotated to further drive the stirring rod 14 to rotate, thereby increasing the filtration effect of the sewage.

[0033] As shown in Figure 5 and Figure 6As shown, the filter assembly comprises support blocks 10 arranged on the inner wall of the second partition 5 and the inner wall of the purification tank 1, spring telescopic rods 20 arranged on the top of the two support blocks 10, a vibrating sieve plate 2 arranged on the movable end of the spring telescopic rod 20 for filtering sludge, guide-out frames 22 arranged on the two sides of the vibrating sieve plate 2 for discharging sludge, moving grooves arranged on the outer walls of the two sides of the purification tank 1 for the movement of the guide-out frames 22, a rotating rod 16 rotatably arranged in the sludge sedimentation area 25, one end of the rotating rod 16 rotatably connected to the inner wall of the purification tank 1, the other end of the rotating rod 16 provided with a first bevel gear 15 meshingly connected with a second bevel gear 17, and a plurality of abutting blocks 21 arranged on the outer wall of the rotating rod 16 and abutting against the vibrating sieve plate 2.

[0034] By rotating the stirring rod 14, the second bevel gear 17 is also rotated, the first bevel gear 15 is rotated by the second bevel gear 17, the rotating rod 16 and the abutting blocks 21 are also rotated, the vibrating sieve plate 2 is reciprocated on the top of the spring telescopic rod 20, the sludge accumulated on the vibrating sieve plate 2 is discharged from the guide-out frames 22 on the two sides, and then the purified clean water is collected.

[0035] Work principle: pour the sewage needing to be purified into the inside of the guide frame 6, the garbage in the sewage can be screened through the screening plate 11 in the inside of the guide frame 6, and the sewage falls in the inside of the shunt frame 7 through the through hole of the screening plate 11, and then flows into the inside of the anaerobic zone 23, and the garbage containing water stains in the sewage will fall in the inside of the collecting frame 12 under the impact of the sewage, and the water stains in the garbage flow into the inside of the shunt frame 7 through the through hole in the inner wall of the collecting frame 12 and then flow into the inside of the aerobic zone 24, the MBBR filler is placed in the inside of the anaerobic zone 23, the MBBR filler is used as the carrier of denitrifying bacteria, the removal effect of nitrogen, phosphorus and sulfide is good, the purpose of removing phosphorus and nitrogen is achieved, then the sewage after removing phosphorus and nitrogen in the inside of the anaerobic zone 23 is pumped into the inside of the aerobic zone 24, at this time, the air outside is introduced into the inside of the driving box 8 by the air pump 4, and then is transported into the inside of the air outlet pipe 9 and the aeration spiral pipe 18 by the driving box 8, and then is sprayed out by the aeration nozzle 19, so that the sewage in the inside of the aerobic zone 24 can be aerated, thereby accelerating the decomposition process of the organic matter, reducing the chemical oxygen demand and biological oxygen demand level, and improving the treatment efficiency of the sewage, and the impeller 13 in the inside of the driving box 8 can also rotate when transporting the air, thereby further driving the stirring rod 14 to rotate, so that the filtration effect of the sewage is increased, then the sewage in the inside of the aerobic zone 24 is pumped into the inside of the sludge sedimentation zone 25, the sludge in the sewage can be filtered by the vibrating screen plate 2 in the inside of the sludge sedimentation zone 25, and the stirring rod 14 also drives the second bevel gear 17 to rotate while rotating, the first bevel gear 15 is driven to rotate by the second bevel gear 17, and the rotating rod 16 and the abutting block 21 are also driven to rotate, thereby driving the vibrating screen plate 2 to reciprocate on the top of the spring telescopic rod 20, so that the sludge accumulated on the vibrating screen plate 2 is guided out from the guide-out frame 22 on both sides, and then the purified clean water is collected.

[0036] The above embodiment only expresses one rural domestic sewage treatment integrated MBBR equipment or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, some modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

[0037] In the utility model, unless another definite provision and limitation, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside the intercommunication or two element's mutual action relation, unless another definite limitation, for ordinary skill in the art to the person, can according to specific situation understanding the specific meaning of the above-mentioned term in the utility model.

Claims

1. An integrated MBBR (Multi-Brain Blast Reactor) device for rural domestic sewage treatment, characterized in that, The purification chamber (1) includes a first partition (3) and a second partition (5) inside the purification chamber (1). The first partition (3) and the second partition (5) divide the interior of the purification chamber (1) into an anaerobic zone (23), an aerobic zone (24) and a sludge settling zone (25). The anaerobic zone (23) contains MBBR packing material for reacting with wastewater. The top of the anaerobic zone (23) is equipped with a screening component for screening waste. The top of the aerobic zone (24) is equipped with an aeration component for aerating wastewater. The sludge settling zone (25) contains a filtration component for filtering sludge.

2. The integrated MBBR equipment for rural domestic sewage treatment according to claim 1, characterized in that, The screening assembly includes a guide frame (6) and a diversion frame (7) set at the top of the anaerobic zone (23). The guide frame (6) and the diversion frame (7) are connected internally. The diversion frame (7) is provided with a screening plate (11) for screening waste, and the screening plate (11) is set at an inclination. The diversion frame (7) is provided with a collection frame (12) for collecting waste.

3. The integrated MBBR equipment for rural domestic sewage treatment according to claim 2, characterized in that, The inner wall of the collection frame (12) is provided with a through hole for water leakage, and the interior of the diversion frame (7) and the interior of the anaerobic zone (23) are provided with a through hole that is connected to each other.

4. The integrated MBBR equipment for rural domestic sewage treatment according to claim 1, characterized in that, The aeration assembly includes an air pump (4) and a drive box (8) located at the top of the aerobic zone (24). The input end of the air pump (4) is connected to an air inlet pipe, and the output end of the air pump (4) is connected to the interior of the drive box (8) through a pipe. One end of the drive box (8) is connected to an air outlet pipe (9), and one end of the air outlet pipe (9) extends into the interior of the aerobic zone (24) and is connected to an aeration spiral pipe (18). The interior of the aeration spiral pipe (18) is connected to multiple aeration nozzles (19).

5. The integrated MBBR equipment for rural domestic sewage treatment according to claim 4, characterized in that, An impeller (13) is rotatably mounted inside the drive box (8), and a stirring rod (14) is rotatably mounted at the bottom of the impeller (13). One end of the stirring rod (14) extends into the interior of the aerobic zone (24), and a second bevel gear (17) is mounted on the outside of the stirring rod (14).

6. The integrated MBBR equipment for rural domestic sewage treatment according to claim 1, characterized in that, The filter assembly includes support blocks (10) set on the side wall of the second partition (5) and the inner wall of the purification box (1). Spring telescopic rods (20) are set on both sides of the top of the two support blocks (10). A vibrating screen plate (2) for filtering sludge is set on the movable end of the spring telescopic rod (20). A discharge frame (22) for discharging sludge is set on both sides of the vibrating screen plate (2). A moving groove for the discharge frame (22) is opened on both sides of the outer wall of the purification box (1). A rotating rod (16) is rotatably set inside the sludge sedimentation area (25). One end of the rotating rod (16) is rotatably connected to the inside of the purification box (1). The other end of the rotating rod (16) is set with a first bevel gear (15) that meshes with the second bevel gear (17). Multiple abutting blocks (21) that abut against the vibrating screen plate (2) are set on the outside of the rotating rod (16).

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