Municipal nitrification and denitrification treatment process and integrated equipment

Abstract

The invention relates to the technical field of sewage treatment, in particular to a municipal nitrification and denitrification treatment process and integrated equipment which comprises a drainage pipe, a communicating pipe, a first auger, an intercepting net, a first motor and the like. A connecting opening is formed in the drainage pipe; a reaction pipe is arranged on the drainage pipe; intercepting nets are arranged at two ends of the reaction tube; an auger I for conveying water flow is arranged on the intercepting net; a motor I is arranged on the drainage pipe; a helical gear is arranged at the output end of the motor I; a helical gear is arranged on the auger I; a bevel gear at the output end of the motor I is meshed with a bevel gear on the auger I; the output end of the motor I is connected with the auger I; and the reaction tube is provided with a plurality of communicating tubes. According to the invention, nitrification and denitrification treatment equipment is directly arranged on the pipeline, so that rapid treatment of sewage is realized, accumulation waiting and generation of difficult odor during centralized treatment of sewage with relatively small flow are avoided, and meanwhile, the removal efficiency of pollutants in the sewage is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly relates to a municipal nitrification and denitrification treatment process and an integrated device. Background Art

[0002] During the existing municipal sewage discharge process, it is necessary to perform nitrogen removal treatment on the sewage. In the treatment process, the detected sewage is centrally discharged into the sewage treatment pool. After the sewage accumulates to a certain amount, MBBR biological fillers are put into the sewage treatment pool, and at the same time, gas is introduced into the sewage pool. The ammonia nitrogen in the sewage is removed through the MBBR biological fillers. This treatment method has the following problems: When the sewage flow is small, the accumulation time is long, resulting in long-term storage of sewage in the pool, which is likely to produce a large smell, and the centralized treatment method makes the sewage treatment speed slow, unable to treat the sewage in time, and affecting the sewage treatment efficiency. Summary of the Invention

[0003] In order to overcome the disadvantages that during the existing sewage treatment, it is necessary to centrally treat the sewage, and the sewage is likely to produce a large smell during the accumulation of sewage, and at the same time, the centralized treatment method cannot treat the sewage in time, affecting the sewage treatment efficiency, the present invention provides a municipal nitrification and denitrification treatment process and an integrated device.

[0004] The technical solution of the present invention is: An integrated device for municipal nitrification and denitrification treatment includes a drain pipe; a connection port is provided on the drain pipe; it also includes a communicating pipe, a transport pipe, a first auger, an intercepting net, a second auger, a third auger, a first motor, a second motor and a third motor; a reaction pipe is provided on the drain pipe; intercepting nets are provided at both ends of the reaction pipe; a first auger for conveying water flow is provided on the intercepting net; a first motor is provided on the drain pipe; a helical gear is provided at the output end of the first motor; a helical gear is provided on the first auger; the helical gear at the output end of the first motor meshes with the helical gear on the first auger, and the output end of the first motor is connected to the first auger; a number of communicating pipes are installed on the reaction pipe; a second auger for conveying biological fillers is provided in the communicating pipe; a transport pipe is commonly connected to all the communicating pipes; a third auger is provided in the transport pipe through a mounting frame; a second motor is provided on the transport pipe; the output end of the second motor is connected to the second auger; a third motor is provided on the transport pipe; a helical gear is provided at the output end of the third motor; a helical gear is provided on the third auger; the helical gear at the output end of the third motor meshes with the helical gear on the third auger; a number of air holes one are provided on the first auger; a number of air holes two are provided on the third auger; the rotating shafts of the first auger and the third auger are both hollow structures; a conduit is provided on the intercepting net; the conduit communicates with the air holes one on the rotating shaft of the first auger; an air pipe is provided on the mounting frame in the transport pipe connected to the third auger, one end of the pipe extends out of the transport pipe and is connected to an air pump, and the other end communicates with the air holes two on the third auger; MBBR biological fillers are put into the reaction pipe.

[0005] As a further preferred solution, it further includes bristles; bristles for cleaning the MBBR biological filler are provided on the third auger.

[0006] As a further preferred solution, it further includes a collection box; several collection boxes for collecting sludge are provided on the first auger; an inlet is provided on the collection box.

[0007] As a further preferred solution, it further includes an interceptor, an intercepting plate, an installation pipe, a fourth auger, a fifth motor, a sixth motor and a seventh motor; an installation pipe is provided on the transport pipe; the other end of the installation pipe is communicated with the reaction pipe; the third auger in the transport pipe is divided into two; a fourth auger is provided in the installation pipe; a fifth motor is provided on the transport pipe; the output end of the fifth motor is connected to the fourth auger; several intercepting plates are provided on the transport pipe; several sixth motors are provided on the transport pipe; the output end of the sixth motor is fixedly connected to the adjacent intercepting plate through a rotating shaft; the number of the sixth motors is the same as that of the intercepting plates; the transport pipe is divided into a first maintenance chamber and a second maintenance chamber, and a feeding area located between the two intercepting plates by the two intercepting plates; several interceptors are provided in the first auger; several motors with the same number as the interceptors are provided on the reaction pipe; the output ends of the seventh motors are all fixedly connected to the adjacent interceptors through rotating shafts; communication holes are provided on the interceptors, and the first auger is divided into a first reaction chamber and a second reaction chamber by the interceptors.

[0008] As a further preferred solution, grooves are provided on the blades of the first auger.

[0009] As a further preferred solution, the inlet provided on the collection box has a larger diameter, and a filter screen with a smaller diameter is provided on the other side.

[0010] As a further preferred solution, the reaction pipe is detachably connected to the drain pipe, which is convenient for replacing the MBBR biological filler.

[0011] As a further preferred solution, a dispenser is provided on the transport pipe.

[0012] As a further preferred solution, anti-corrosion coatings are sprayed on the first auger, the second auger and the third auger.

[0013] A municipal nitrification and denitrification treatment process includes the following steps: Step 1: Installation and sewage inflow. Workers first install the reaction pipe on the drain pipe. Subsequently, the detected sewage flows to the reaction pipe, passes through the intercepting net, and enters the reaction pipe through the transportation of the first auger.

[0014] Step 2: The first auger extends the residence time of the sewage in the reaction pipe, increases the contact time between the sewage and the MBBR biological filler, and is convenient for the MBBR biological filler to adsorb bacteria in the sewage. And the air pump in the first auger starts to work, and conveys gas to the rotating shaft on the first auger.

[0015] Step 3: Circulating transportation of MBBR biological fillers. After the MBBR biological fillers move to the left side of the reaction tube, the auger 2 is driven by the motor 2 to rotate, moving the MBBR biological fillers upward into the transportation pipe. Subsequently, the auger 3 is driven by the motor 3 to rotate, driving the MBBR biological fillers to move to the right, and re-entering the reaction tube through the connecting pipe connecting the right side of the reaction tube and the transportation pipe to contact the sewage.

[0016] Step 4: Clean the aged biofilm on the MBBR biological fillers with the bristles on the auger 3.

[0017] Step 5: Divide the transportation pipe into maintenance chamber 1 and maintenance chamber 2, and maintain the MBBR biological fillers by alternately operating maintenance chamber 1 and maintenance chamber 2.

[0018] Step 6: Collect sludge in the reaction tube through the collection box.

[0019] Step 7: Clean the collection box by reversing the auger 1.

[0020] The present invention has the following advantages: In the technical solution provided by the present invention: The nitrification and denitrification treatment equipment of the present invention is directly installed on the pipeline to achieve rapid treatment of sewage, avoiding the need for small-flow sewage to accumulate and wait during centralized treatment, generating unpleasant odors, and at the same time improving the removal efficiency of pollutants in the sewage.

[0021] When the MBBR biological fillers enter the transportation pipe, when the auger 3 drives the MBBR biological fillers to move, the air pump pumps gas into the rotating shaft of the auger 3, and the gas is ejected through the air holes 2. At the same time, the bristles on the auger 3 brush the MBBR biological fillers. Under the combined action of the air flow and the bristles, the aged biofilm and sludge on the surface of the MBBR biological fillers fall off, preventing the influence of the aged biofilm on the biofilm metabolism and maintaining the good sewage treatment effect of the MBBR biological fillers.

[0022] When the MBBR biological fillers need to be maintained after long-term use, white sugar is put into maintenance chamber 1 through the dispenser. At the same time, when the auger 2 drives the MBBR biological fillers to move, it will drive part of the water flow in the reaction tube into maintenance chamber 1. The sewage entering maintenance chamber 1 contains sludge, and the nutrients in the sludge can be used to maintain the MBBR biological fillers. In addition, the air pump in the auger 3 passes gas into the rotating shaft of the auger 3, and the gas is blown out through the air holes 2, increasing the oxygen content in maintenance chamber 1, providing a suitable environment for the maintenance of the biofilm, promoting the growth and metabolism of the biofilm, and improving the service life of the MBBR biological fillers and the sewage treatment effect. Description of the Drawings

[0023] Figure 1Schematic three-dimensional structure diagram of a municipal nitrification and denitrification treatment device of the present invention; Figure 2 Schematic three-dimensional structure diagram of the drain pipe, connecting pipe, transport pipe and auger one combination of the present invention; Figure 3 Schematic three-dimensional structure diagram of the reaction pipe, connecting pipe, transport pipe and auger one combination of the present invention; Figure 4 Schematic three-dimensional structure diagram of the reaction pipe, connecting pipe, transport pipe, auger one, interceptor, auger two, auger three, interception plate, installation pipe and auger four combination of the present invention; Figure 5 Schematic three-dimensional structure diagram of the auger one, auger three, interception plate, air vent one, groove and air vent two combination of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of area A in Figure 7 Schematic three-dimensional structure diagram of the collection box of the present invention; Figure 8 Schematic three-dimensional structure diagram of the auger one, interception net and conduit combination of the present invention.

[0024] Wherein: 1 - drain pipe, 2 - connecting pipe, 3 - transport pipe, 4 - auger one, 5 - interceptor, 6 - auger two, 7 - auger three, 8 - interception plate, 9 - installation pipe, 10 - auger four, 101 - motor one, 102 - motor two, 103 - motor three, 105 - interception net, 106 - motor five, 107 - motor six, 108 - motor seven, 201 - brush hair, 202 - collection box, 1001 - reaction pipe, 3001 - curing chamber one, 3002 - curing chamber two, 3003 - feeding area, 4001 - air vent one, 4002 - groove, 4003 - reaction chamber one, 4004 - reaction chamber two, 7001 - air vent two, 10501 - conduit. Detailed implementation manners

[0025] The following will further illustrate the present invention in combination with specific embodiments. It should also be noted that unless otherwise clearly specified and defined, terms such as: setting, installation, connection, and coupling should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Embodiment 1

[0026] An integrated municipal nitrification and denitrification treatment device, as Figures 1 - 8As shown, it includes a drain pipe 1; a connection port is provided on the drain pipe 1; It also includes a connecting pipe 2, a transport pipe 3, a first auger 4, an interception net 105, a second auger 6, a third auger 7, a first motor 101, a second motor 102 and a third motor 103; a reaction pipe 1001 is provided on the drain pipe 1; interception nets 105 are provided at both ends of the reaction pipe 1001; a first auger 4 is provided on the interception net 105; a first motor 101 is provided on the drain pipe 1; a helical gear is provided at the output end of the first motor 101; a helical gear is provided on the first auger 4; the helical gear at the output end of the first motor 101 meshes with the helical gear on the first auger 4, and the output end of the first motor 101 is connected to the first auger 4; two connecting pipes 2 are installed on the reaction pipe 1001; a second auger 6 is provided in the connecting pipe 2; a transport pipe 3 is commonly connected to all the connecting pipes 2; a third auger 7 is provided in the transport pipe 3 through a mounting bracket; a second motor 102 is provided on the transport pipe 3; the output end of the second motor 102 is connected to the second auger 6; a third motor 103 is provided on the transport pipe 3; a helical gear is provided at the output end of the third motor 103; a helical gear is provided on the third auger 7; the helical gear at the output end of the third motor 103 meshes with the helical gear on the third auger 7; a number of first aeration holes 4001 are provided on the first auger 4; a second aeration hole 7001 is provided on the third auger 7; the rotating shafts of the first auger 4 and the third auger 7 are both of hollow structure; a conduit 10501 is provided on the interception net 105; the conduit 10501 communicates with the first aeration hole 4001 on the rotating shaft of the first auger 4; an air pipe is provided on the mounting bracket connected to the third auger 7 in the transport pipe 3, one end of the pipe extends out of the transport pipe 3 and is connected to an air pump, and the other end communicates with the second aeration hole 7001 on the third auger 7; MBBR biological fillers are placed in the reaction pipe 1001.

[0027] It also includes bristles 201; the bristles 201 are provided on the third auger 7.

[0028] It also includes a collection box 202; a number of collection boxes 202 are provided on the first auger 4; an inlet is provided on the collection box 202.

[0029] It also includes an interceptor 5, an interception plate 8, an installation pipe 9, a screw conveyor four 10, a motor five 106, a motor six 107, and a motor seven 108; an installation pipe 9 is arranged on the transportation pipe 3; the other end of the installation pipe 9 is communicated with the reaction pipe 1001; the installation pipe 9 is located between the two connecting pipes 2, that is, at the midpoint of the transportation pipe 3; the screw conveyor three 7 in the transportation pipe 3 is divided into two; a screw conveyor four 10 is arranged in the installation pipe 9; a motor five 106 is arranged on the transportation pipe 3; the output end of the motor five 106 is connected with the screw conveyor four 10; several interception plates 8 are arranged on the transportation pipe 3; several motor six 107 are arranged on the transportation pipe 3; the output end of the motor six 107 is fixedly connected with the adjacent interception plate 8 through a rotating shaft; the number of the motor six 107 is the same as that of the interception plate 8; the transportation pipe 3 is divided into a maintenance chamber one 3001 and a maintenance chamber two 3002 by two interception plates 8, and a feeding area 3003 located between the two interception plates 8; two interceptors 5 are arranged in the screw conveyor one 4; several motor seven 108 with the same number as the interceptors 5 are arranged on the reaction pipe 1001; the output ends of the motor seven 108 are all fixedly connected with the adjacent interceptor 5 through a rotating shaft; communication holes are arranged on the interceptor 5, and the interceptor 5 divides the screw conveyor one 4 into a reaction chamber one 4003 and a reaction chamber two 4004.

[0030] Grooves 4002 are arranged on the blades of the screw conveyor one 4 to cooperate with the screw conveyor one 4 to stir the water flow.

[0031] The inlet diameter of the collection box 202 is relatively large, and a filter screen with a relatively small diameter is arranged on the other side.

[0032] The reaction pipe 1001 is detachably connected to the drain pipe 1, which is convenient for replacing the MBBR biological filler.

[0033] A dispenser is arranged on the transportation pipe 3 for dispensing sugar water, etc. into the transportation pipe 3 for maintaining the MBBR biological filler.

[0034] Anti-corrosion coatings are sprayed on the screw conveyor one 4, the screw conveyor two 6, and the screw conveyor three 7.

[0035] A municipal nitrification and denitrification treatment process is characterized in that: this process uses the municipal nitrification and denitrification treatment equipment described in claim 9, and includes the following steps: Step one: Installation and sewage inflow. Workers first install the reaction pipe 1001 on the drain pipe 1. Subsequently, the detected sewage flows to the reaction pipe 1001, passes through the interception net 105, and enters the reaction pipe 1001 through the transportation of the screw conveyor one 4.

[0036] Step two: The screw conveyor one 4 prolongs the residence time of the sewage in the reaction pipe 1001, increases the contact time between the sewage and the MBBR biological filler, and is convenient for the MBBR biological filler to adsorb the bacteria in the sewage. And the air pump in the screw conveyor one 4 starts to work to convey gas to the rotating shaft on the screw conveyor one 4.

[0037] Step 3: Recirculating transportation of MBBR biological fillers. After the MBBR biological fillers move to the left side of the reaction tube 1001, the screw conveyor two 6 is driven by the motor two 102 to move the MBBR biological fillers upward into the transportation pipe 3. Subsequently, the screw conveyor three 7 is driven by the motor three 103 to rotate, and the screw conveyor three 7 drives the MBBR biological fillers to move to the right and re-enter the reaction tube 1001 through the connecting pipe 2 connecting the right side of the reaction tube 1001 and the transportation pipe 3 to contact the sewage.

[0038] Step 4: Clean the aged biofilm on the MBBR biological fillers with the brush bristles 201 on the screw conveyor three 7.

[0039] Step 5: Divide the transportation pipe 3 into a maintenance chamber one 3001 and a maintenance chamber two 3002, and maintain the MBBR biological fillers by alternately operating the maintenance chamber one 3001 and the maintenance chamber two 3002.

[0040] Step 6: Collect sludge in the reaction tube 1001 through the collection box 202.

[0041] Step 7: Clean the collection box 202 by reversing the screw conveyor one 4.

[0042] The working process of this municipal nitrification and denitrification treatment equipment is as follows: First, the worker installs the reaction tube 1001 on the drain pipe 1. Subsequently, the tested sewage flows to the reaction tube 1001. The sewage passes through the interception net 105 on the right and enters the reaction tube 1001 through the transportation of the screw conveyor one 4. At the same time, the air pump connected to the conduit 10501 starts to work and supplies gas to the rotating shaft on the screw conveyor one 4. The gas is ejected through the air holes one 4001 on the rotating shaft to provide oxygen for the sewage in the reaction tube 1001, facilitating the fermentation of bacteria on the MBBR biological fillers and simultaneously keeping the MBBR biological fillers in a suspended state in the absence of water.

[0043] Furthermore, the MBBR biological packing located within the reaction tube 1001 is conveyed by the first auger 4 and moves from right to left along the reaction tube 1001. When the MBBR biological packing moves to the left side of the reaction tube 1001, the MBBR biological packing is intercepted by the intercepting net 105 on the left side to prevent the MBBR biological packing from flowing away. If the MBBR biological packing accumulates on the left side of the reaction tube 1001, it will affect the rotation of the first auger 4. At the same time, it will cause the MBBR biological packing to accumulate together, reducing the contact time between the MBBR biological packing and the sewage, resulting in incomplete nitrification and denitrification reactions. Therefore, the present invention is designed with a connecting pipe 2 and a second auger 6. When the MBBR biological packing moves to the left side of the reaction tube 1001, the second auger 6 is driven to rotate by the second motor 102, and the MBBR biological packing is driven to move upward by the second auger 6, so that the MBBR biological packing enters the transport pipe 3. Subsequently, the third auger 7 is driven to rotate by the third motor 103, and the MBBR biological packing is driven to move to the right by the third auger 7 within the transport pipe 3. When the MBBR biological packing moves to the right end of the reaction tube 1001, it enters the reaction tube 1001 again through the connecting pipe 2 connecting the right side of the reaction tube 1001 and the transport pipe 3, thus forming a cycle of the packing. The MBBR biological packing re-enters the reaction tube 1001 to contact the sewage and adsorb the bacteria in the sewage. Since the biofilm on the MBBR biological packing is prone to aging, the aged biofilm will affect the metabolism of the biofilm and reduce the sewage treatment effect of the MBBR biological packing. Therefore, after the MBBR biological packing is used for a period of time, when the MBBR biological packing enters the transport pipe 3 and is driven to move by the third auger 7, gas is pumped into the rotating shaft of the third auger 7 through the air pump connected to the third auger 7. The third auger 7 is installed in the transport pipe 3 through the mounting frame. An air pipe is provided on the mounting frame connected to the third auger 7. One end of the air pipe extends out of the transport pipe 3 and is connected to the air pump, and the other end is connected to the second air vent 7001. The gas is ejected through the second air vent 7001, and the MBBR biological packing is agitated by the air flow. At the same time, the MBBR biological packing is brushed by the bristles 201 provided on the third auger 7. With the cooperation of the air flow, the MBBR biological packing collides, causing the aged biofilm and sludge on the surface of the MBBR biological packing to fall off. At this time, the state of the MBBR biological packing is that during the growth process of the biofilm, as the metabolic activities of the microorganisms proceed, the secretion of extracellular polymers will gradually decrease, resulting in a weakened viscosity of the biofilm. In this case, when the biological packing is subjected to external forces such as the impact of water flow or mechanical agitation, the aged biofilm is more likely to fall off from the surface of the packing. And because the conveying distance is short, the impact time of the biofilm on the MBBR biological packing is small. Therefore, the fallen biofilm on the MBBR biological packing is all the easily fallen aged biofilm.

[0044] Furthermore, during the use of the present invention, after the MBBR biological filler has been used for a long time, it is necessary to maintain the MBBR biological filler and maintain the biofilm on the surface of the MBBR biological filler. However, at this time, there may still be sewage flowing out of the drain pipe 1. Therefore, the present invention designs an interception plate 8, an installation pipe 9, a screw conveyor four 10, and an interceptor 5. At the same time, the screw conveyor three 7 in the transport pipe 3 is divided into two, and the installation pipe 9 is located between the two connecting pipes 2, that is, at the midpoint of the transport pipe 3. Interception plates 8 are provided on both sides at the place where the transport pipe 3 communicates with the installation pipe 9. The transport pipe 3 is divided into a maintenance chamber one 3001 and a maintenance chamber two 3002, and a feeding area 3003 located between the two interception plates 8 by the two interception plates 8. An installation pipe 9 is provided in the middle of the transport pipe 3; a screw conveyor four 10 is provided in the installation pipe 9, and an interceptor 5 is provided in the reaction pipe 1001; at the same time, communication holes are provided on the interceptor 5, and the screw conveyor one 4 is divided into a reaction chamber one 4003 and a reaction chamber two 4004 by the interceptor 5. When the MBBR biological filler needs to be maintained, taking the maintenance chamber one 3001 as the maintenance area and the reaction chamber two 4004 as the reaction area as an example, at this time, the maintenance chamber two 3002 is used to transport the MBBR biological filler, and the working principle is as follows: The screw conveyor one 4 drives the MBBR biological filler and sewage to move from right to left in the reaction pipe 1001. At this time, the interceptor 5 located in the reaction chamber two 4004 is driven by the motor seven 108 to rotate clockwise from right to left, opening the flow passage to allow the MBBR biological filler to pass through. At this time, the interceptor 5 located in the reaction chamber one 4003 is in a closed state, only allowing sewage to pass through. At this time, the MBBR biological filler is intercepted by the interceptor 5 located in the reaction chamber one 4003. At this time, the screw conveyor four 10 in the installation pipe 9 is driven to rotate by the motor five 106, driving the MBBR biological filler to move upward into the transport pipe 3. At this time, the interception plate 8 in the maintenance chamber one 3001 is in a closed state, and the interception plate 8 in the maintenance chamber two 3002 is driven by the motor six 107 to rotate clockwise from right to left, making the maintenance chamber two 3002 communicate with the feeding area 3003. The MBBR biological filler entering the feeding area 3003 is driven by the screw conveyor three 7 in the maintenance chamber two 3002 to move the MBBR biological filler to the right and return to the screw conveyor one 4 again through the right connecting pipe 2, completing the transportation and cleaning of the MBBR biological filler, forming a cycle, so that the MBBR biological filler in the drain pipe 1 can work continuously.

[0045] It should be noted that when the biological filler in the first maintenance chamber 3001 is being maintained, the auger two 6 in the connecting pipe 2 on the left side of the drain pipe 1 drives the MBBR biological filler to move upward and enter the first maintenance chamber 3001. At this time, the intercepting plate 8 on the right side of the first maintenance chamber 3001 is in a closed state. When the MBBR biological filler in the first maintenance chamber 3001 is stored to a certain amount, the auger three 7 in the first maintenance chamber 3001 stops rotating, and at the same time, the intercepting plates 8 at both ends of the first maintenance chamber 3001 are all closed. After that, white sugar is put into the first maintenance chamber 3001 through the dispenser. At the same time, when the auger two 6 drives the MBBR biological filler to move, it will drive a part of the water flow in the reaction pipe 1001 into the first maintenance chamber 3001. At this time, the sewage entering the first maintenance chamber 3001 contains sludge, and the sludge contains nutrients, which can be used to maintain the MBBR biological filler. At the same time, gas is introduced into the rotating shaft of the auger three 7 through the air pump in the auger three 7, and the gas is blown out through the second air vent 7001 to increase the oxygen content in the first maintenance chamber 3001.

[0046] Furthermore, when the MBBR biological filler treats sewage, the sludge can form a synergistic effect with the biofilm on the MBBR biological filler to further decompose the organic matter in the sewage. Therefore, in the present invention, a collection box 202 is provided on the auger one 4. When the auger one 4 conveys sewage, it cooperates with the gas ejected from the first air vent 4001 and the collection box 202. The sewage hits the collection box 202, enters through the inlet on the collection box 202, and then discharges from the filter screen on the other side of the collection box 202. Since the density of the filter screen is relatively large, the sludge will stay in the collection box 202 and cooperate with the biofilm on the MBBR biological filler to further decompose the organic matter in the sewage.

[0047] Furthermore, the sludge in the collection tank 202 needs to be replaced regularly to prevent sludge aging and resulting in reduced activity. The present invention requires regular cleaning of the auger 1 4 and the collection tank 202. However, during the cleaning process, the MBBR biological filler will hinder the cleaning effect of the auger 1 4 and the collection tank 202. Therefore, the present invention transports all the MBBR biological filler to the transport pipe 3 through the auger 2 6, so that the MBBR biological filler stays in the transport pipe 3 and the connecting pipe 2. At this time, there is no MBBR biological filler in the drain pipe 1, which facilitates the cleaning of the collection tank 202. During cleaning, the worker connects the water pipe to the connection port on the left side of the reaction pipe 1001, and at the same time connects the sludge pump to the connection port on the right side of the reaction pipe 1001 through a pipeline. Water is injected into the reaction pipe 1001 through the connection port on the left side of the reaction pipe 1001. At this time, the motor 1 101 drives the auger 1 4 to rotate in reverse, driving the water flow to move from the left side to the right side of the reaction pipe 1001. During this process, the water flow hits the side of the collection tank 202 provided with a filter screen. The water flow passes through the filter screen and flushes the inside of the collection tank 202, driving the sludge inside the collection tank 202 to be discharged from the inlet of the collection tank 202. Then, the sewage can be pumped away by the sludge pump.

[0048] It should be noted that air pumps are provided inside the rotating shafts of both the auger 1 4 and the auger 3 7. The output ends of the air pumps are respectively connected to the rotating shafts of the auger 1 4 and the auger 3 7, and the input ends of the air pumps are connected to the outside through pipelines.

[0049] According to the above working process, we can know that the present invention has the following effects: The auger 1 4 extends the residence time of the sewage in the reaction pipe 1001, increases the contact time between the sewage and the MBBR biological filler, thereby providing more sufficient time for the MBBR biological filler to adsorb bacteria in the sewage, enabling the bacteria to more effectively decompose the organic matter in the sewage, and improving the sewage treatment efficiency.

[0050] When the MBBR biological filler enters the transport pipe 3 and is driven to move by the auger 3 7, the air pump pumps gas into the rotating shaft of the auger 3 7, and the gas is ejected through the air holes 2 7001. At the same time, the bristles 201 on the auger 3 7 brush the MBBR biological filler. Under the combined action of the air flow and the bristles 201, the aged biofilm and sludge on the surface of the MBBR biological filler fall off. This design can effectively remove the aged part on the surface of the MBBR biological filler and prevent it from affecting the metabolism of the biofilm, thereby maintaining the good sewage treatment effect of the MBBR biological filler.

[0051] When the MBBR biological filler needs to be maintained after long-term use, white sugar is put into the first maintenance chamber 3001 through a dispenser. At the same time, when the auger two 6 drives the MBBR biological filler to move, it will drive a part of the water flow in the reaction tube 1001 into the first maintenance chamber 3001. The sewage entering the first maintenance chamber 3001 contains sludge, and the nutrients in the sludge can be used to maintain the MBBR biological filler. In addition, gas is introduced into the rotating shaft of the auger three 7 through the air pump in the auger three 7, and the gas is blown out through the second air holes 7001 to increase the oxygen content in the first maintenance chamber 3001. This maintenance method can provide nutrients and a suitable environment for the biofilm on the MBBR biological filler, promote the growth and metabolism of the biofilm, keep it in good activity, and thus improve the service life of the MBBR biological filler and the sewage treatment effect.

[0052] The additional technical effects of the present invention are as follows: Among them, as Figure 6 shown, a number of grooves 4002 are formed on the auger one 4. When the auger one 4 conveys sewage, the grooves 4002 on the auger one 4 cooperate with the airflow ejected from the first air holes 4001 to make the sewage impact in the grooves 4002, stir the sewage, and fully mix the sewage with the MBBR biological filler.

[0053] The above has introduced the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the process and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A municipal nitrification and denitrification treatment integrated device, comprising a drainage pipe (1); a connection port is provided on the drainage pipe (1); and the characteristics are: It also comprises a connecting pipe (2); a reaction pipe (1001) is arranged on the drainage pipe (1); interception nets (105) are arranged at both ends of the reaction pipe (1001); an auger (4) for conveying water is arranged on the interception net (105); a motor (101) is arranged on the drainage pipe (1); a bevel gear is arranged at the output end of the motor (101); a bevel gear is arranged on the auger (4); the bevel gear at the output end of the motor (101) meshes with the bevel gear on the auger (4); the output end of the motor (101) is connected to the auger (4); a plurality of connecting pipes (2) are installed on the reaction pipe (1001); an auger (2) is arranged in the connecting pipe (2); a transport pipe (3) is connected to all the connecting pipes (2); an auger (3) is arranged in the transport pipe (3) via a mounting frame; a motor (102) is arranged on the transport pipe (3); the output end of the motor (102) meshes with the auger (6) 6) connection; a motor 3 (103) is provided on the transport pipe (3); a bevel gear is provided on the output end of the motor 3 (103); a bevel gear is provided on the auger 3 (7); the bevel gear at the output end of the motor 3 (103) meshes with the bevel gear on the auger 3 (7); a plurality of aeration holes 1 (4001) are provided on the auger 1 (4); an aeration hole 2 (7001) is provided on the auger 3 (7); the rotating shafts of the auger 1 (4) and the auger 3 (7) are both centrally The invention relates to a hollow structure; a conduit (10501) is provided on the intercepting net (105); the conduit (10501) is connected to an aeration hole 1 (4001) on the rotating shaft of the auger 1 (4); an air pipe is provided on a mounting frame connected to the auger 3 (7) in the transport pipe (3); one end of the pipe extends out of the transport pipe (3) and is connected to the air pump, and the other end is connected to an aeration hole 2 (7001) on the auger 3 (7); and MBBR biological filler is placed in the reaction tube (1001).

2. The municipal nitrification and denitrification treatment integrated equipment according to claim 1, characterized in that: It also includes bristles (201); the auger 3 (7) is provided with bristles (201) for cleaning the MBBR biological filler.

3. The municipal nitrification and denitrification treatment integrated equipment according to claim 1, characterized in that: It also includes a collection box (202); a plurality of collection boxes (202) for collecting sludge are arranged on the auger (4); and an inlet is provided on the collection box (202).

4. The integrated municipal nitrification and denitrification treatment equipment according to claim 1, characterized in that: The invention also comprises an interceptor (5), an interception plate (8), a mounting tube (9), an auger 4 (10), a motor 5 (106), a motor 6 (107) and a motor 7 (108); the transport tube (3) is provided with an mounting tube (9); the other end of the mounting tube (9) is connected to the reaction tube (1001); the auger 3 (7) in the transport tube (3) is divided into two; the auger 4 (10) is provided in the mounting tube (9); the motor 5 (106) is provided on the transport tube (3); the output end of the motor 5 (106) is connected to the auger 4 (10); the transport tube (3) is provided with a plurality of interception plates (8); the transport tube (3) is provided with a plurality of motors 6 (107); the output end of the motor 6 (107) is connected to the adjacent The interception plate (8) is fixedly connected; the number of motor six (107) is the same as the interception plate (8); the transport pipe (3) is divided into a maintenance chamber one (3001) and a maintenance chamber two (3002) by the two interception plates (8), and a feeding area (3003) located between the two interception plates (8); a plurality of interceptors (5) are arranged in the auger one (4); a plurality of motor seven (108) whose number is the same as the number of interceptors (5) is arranged on the reaction tube (1001); the output ends of the motor seven (108) are fixedly connected to the adjacent interceptors (5) through a rotating shaft; a connecting hole is opened on the interceptor (5), and the interceptor (5) divides the auger one (4) into a reaction chamber one (4003) and a reaction chamber two (4004).

5. The municipal nitrification and denitrification treatment integrated equipment according to claim 4, characterized in that: A groove (4002) is provided on the blade of the auger 1 (4).

6. The municipal nitrification and denitrification treatment integrated equipment according to claim 3, characterized in that: The collection box (202) is provided with an inlet having a relatively large diameter, and a filter screen having a relatively small diameter is provided on the other side.

7. The integrated municipal nitrification and denitrification treatment equipment according to claim 4, characterized in that: The reaction tube (1001) is detachably connected to the drainage pipe (1), so as to facilitate replacement of the MBBR biofiller.

8. The municipal nitrification and denitrification treatment integrated equipment according to claim 4, characterized in that: A dispenser is provided on the transport pipe (3).

9. The integrated municipal nitrification and denitrification treatment equipment according to claim 5, characterized in that: The first auger (4), the second auger (6) and the third auger (7) are all sprayed with an anti-corrosion coating.

10. A municipal nitrification and denitrification treatment process, using the municipal nitrification and denitrification treatment equipment according to claim 9, characterized in that: The following steps are involved: Step 1: Installation and sewage inflow. The worker first installs the reaction tube (1001) on the drainage pipe (1). Then, the detected sewage flows to the reaction tube (1001), passes through the interception net (105), and enters the reaction tube (1001) through the conveyance of the auger (4). Step 2: The residence time of the sewage in the reaction tube (1001) is prolonged by the auger 1 (4), thereby increasing the contact time between the sewage and the MBBR biological filler, so that the MBBR biological filler can adsorb bacteria in the sewage; and the air pump in the auger 1 (4) starts to work, so as to deliver gas to the rotating shaft on the auger 1 (4); Step 3: Circulation and transportation of MBBR biological filler. When the MBBR biological filler moves to the left side of the reaction tube (1001), the motor 2 (102) drives the auger 2 (6) to rotate, and moves the MBBR biological filler upward into the transport tube (3). Subsequently, the motor 3 (103) drives the auger 3 (7) to rotate, and the auger 3 (7) drives the MBBR biological filler to move to the right, and re-enters the reaction tube (1001) through the connecting tube (2) on the right side of the reaction tube (1001) connected to the transport tube (3) to contact the sewage. Step 4: Clean the aged biofilm on the MBBR biofiller using the bristles (201) on the auger 3 (7); Step 5: Divide the transport pipe (3) into a curing chamber 1 (3001) and a curing chamber 2 (3002), and curing the MBBR biofiller by making the curing chamber 1 (3001) and the curing chamber 2 (3002) work alternately; Step 6: collecting sludge in the reaction tube (1001) through the collection box (202); Step 7: Clean the collection box (202) by reversing the auger (4).

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