Municipal nitrification-denitrification treatment process and integrated equipment

Abstract

The application relates to the technical field of sewage treatment, in particular to a municipal nitrification and denitrification treatment process and integrated equipment, which comprises a drain pipe, a communicating pipe, a screw conveyor I, a screen and a motor I and the like; a connecting port is formed in the drain pipe; a reaction pipe is arranged on the drain pipe; the reaction pipe is provided with the screen at both ends; the screen is provided with the screw conveyor I for conveying water flow; the drain pipe is provided with the motor I; the output end of the motor I is provided with a helical gear; the screw conveyor I is provided with the helical gear; the helical gear at the output end of the motor I is engaged with the helical gear on the screw conveyor I; the output end of the motor I is connected with the screw conveyor I; and the reaction pipe is installed with a plurality of communicating pipes. The nitrification and denitrification treatment equipment is directly arranged on the pipeline, rapid sewage treatment is realized, the sewage with small flow rate needs to be accumulated and waited when being treated in batches, difficult odors are generated, and the removal efficiency of pollutants in the sewage is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, especially to a municipal nitrification and denitrification treatment process and integrated equipment. BACKGROUND

[0002] In the existing municipal sewage discharge process, the sewage needs to be treated by denitrification, and the treated sewage is discharged into a sewage treatment tank. When the sewage accumulates to a certain amount, MBBR biological fillers are put into the sewage treatment tank, and gas is introduced into the sewage tank. The ammonia nitrogen in the sewage is removed by the MBBR biological fillers. This treatment method has the following problems: when the sewage flow is small, the accumulation time is long, which causes the sewage to be stored in the tank for a long time, and a large odor is easily produced. The centralized treatment method makes the sewage treatment speed slow, and the sewage cannot be treated in time, which affects the sewage treatment efficiency. SUMMARY

[0003] In order to overcome the shortcomings that the existing sewage treatment needs to be treated in a centralized manner, the sewage is easy to produce a large odor when the sewage accumulates, and the centralized treatment method cannot treat the sewage in time, affecting the treatment efficiency of the sewage, the present application provides a municipal nitrification and denitrification treatment process and integrated equipment.

[0004] The technical scheme of the present application is as follows: a municipal nitrification and denitrification treatment integrated equipment, comprising a drain pipe, a connecting port is formed on the drain pipe, a communication pipe, a conveying pipe, a screw conveyor one, a screen, a screw conveyor two, a screw conveyor three, a motor one, a motor two and a motor three, a reaction tube is arranged on the drain pipe, screens are arranged at both ends of the reaction tube, a screw conveyor one for conveying water flow is arranged on the screen, the motor one is arranged on the drain pipe, a bevel gear is arranged at the output end of the motor one, a bevel gear is arranged on the screw conveyor one, the bevel gear at the output end of the motor one is engaged with the bevel gear on the screw conveyor one, the output end of the motor one is connected with the screw conveyor one, a plurality of communication pipes are installed on the reaction tube, a screw conveyor two for conveying biological fillers is arranged in the communication pipe, a conveying pipe is connected to all the communication pipes, a screw conveyor three is arranged in the conveying pipe through a mounting bracket, the motor two is arranged on the conveying pipe, the output end of the motor two is connected with the screw conveyor two, the motor three is arranged on the conveying pipe, a bevel gear is arranged at the output end of the motor three, a bevel gear is arranged on the screw conveyor three, the bevel gear at the output end of the motor three is engaged with the bevel gear on the screw conveyor three, a plurality of aeration holes one are formed on the screw conveyor one, aeration holes two are formed on the screw conveyor three, the rotating shafts of the screw conveyors one and three are hollow structures, a guide pipe is formed on the screen, the guide pipe is communicated with the aeration holes one on the rotating shaft of the screw conveyor one, a gas pipe is arranged on the mounting bracket connected with the screw conveyor three in the conveying pipe, one end of the gas pipe extends out of the conveying pipe and is connected with a gas pump, and the other end is communicated with the aeration holes two on the screw conveyor three, MBBR biological fillers are put into the reaction tube.

[0005] As a further preferred, it also includes a brush; the auger three is provided with a brush for cleaning the MBBR biological filler.

[0006] As a further preferred, it also includes a collecting box; the auger one is provided with a plurality of collecting boxes for collecting sludge; the collecting box is provided with an inlet.

[0007] As a further preferred, it also includes an interceptor, an intercepting plate, a mounting pipe, an auger four, a motor five, a motor six and a motor seven; the transport pipe is provided with a mounting pipe; the other end of the mounting pipe is in communication with the reaction pipe; the auger three in the transport pipe is divided into two; the mounting pipe is provided with the auger four; the transport pipe is provided with the motor five; the output end of the motor five is connected with the auger four; the transport pipe is provided with a plurality of intercepting plates; the transport pipe is provided with a plurality of motor six; the output end of the motor six is fixedly connected with the adjacent intercepting plate through a rotating shaft; the number of the motor six is the same as that of the intercepting plate; the transport pipe is divided into a maintenance chamber one and a maintenance chamber two, and a feeding area between the two intercepting plates by the two intercepting plates; the auger one is provided with a plurality of interceptors; the reaction pipe is provided with a plurality of motor seven which is the same in number as the interceptors; the output end of the motor seven is fixedly connected with the adjacent interceptor through a rotating shaft; the interceptor is provided with a communication hole, and the interceptor divides the auger one into a reaction chamber one and a reaction chamber two.

[0008] As a further preferred, the blade of the auger one is provided with a groove.

[0009] As a further preferred, the inlet of the collecting box is provided with a larger diameter, and the other side is provided with a smaller diameter filter screen.

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

[0011] As a further preferred, the transport pipe is provided with a feeder.

[0012] As a further preferred, the auger one, the auger two and the auger three are all sprayed with an anti-corrosion coating.

[0013] A municipal nitrification and denitrification treatment process, comprising the following steps:

[0014] Step one: installation and sewage inflow, workers first install the reaction pipe on the drain pipe. Then, the detected sewage flows to the reaction pipe, passes through the intercepting net, and enters the reaction pipe through the conveying of the auger one.

[0015] Step two: the residence time of sewage in the reaction tube is prolonged by the screw, the contact time of sewage and MBBR biological filler is increased, the MBBR biological filler is convenient for adsorbing bacteria in sewage, and the air pump in the screw starts to work, and air is sent to the rotating shaft on the screw.

[0016] Step three: the MBBR biological filler is circulated and transported, when the MBBR biological filler moves to the left side of the reaction tube, the screw two is driven to rotate by the motor two, and the MBBR biological filler is moved upwards into the conveying pipe, then the screw three is driven to rotate by the motor three, the MBBR biological filler is moved to the right by the screw three, and the MBBR biological filler reenters the reaction tube through the communication pipe on the right side of the reaction tube and the conveying pipe and contacts with sewage.

[0017] Step four: the aging biological membrane on the MBBR biological filler is cleaned by the bristles on the screw three.

[0018] Step five: the conveying pipe is divided into maintenance chamber one and maintenance chamber two, the MBBR biological filler is maintained by making the maintenance chamber one and the maintenance chamber two work alternately.

[0019] Step six: the sludge is collected in the reaction tube by the collecting box.

[0020] Step seven: the collecting box is cleaned by reversing the screw one.

[0021] The application has the following advantages: the application provides the technical scheme, the nitration and denitrification treatment integrated equipment is directly arranged on the pipeline, the sewage is quickly treated, the sewage with small flow is not needed to be accumulated and waited when being treated, the difficult smell is avoided, and the removal efficiency of pollutants in the sewage is improved.

[0022] When the MBBR biological filler enters the conveying pipe, the air pump pumps air into the rotating shaft on the screw three when the MBBR biological filler is moved by the screw three, the air is sprayed out through the aeration hole two, and the bristles on the screw three brush the MBBR biological filler.

[0023] When the MBBR biological filler needs to be maintained after long time use, white sugar is put into the maintenance chamber one through the feeder, and part of the water flow in the reaction tube is brought into the maintenance chamber one when the second auger moves the MBBR biological filler. The sewage entering the maintenance chamber one contains sludge, and the nutrients in the sludge can be used to maintain the MBBR biological filler. In addition, the gas pump in the third auger blows gas into the shaft of the third auger, and the gas is blown out through the aeration hole two, which increases the oxygen content in the maintenance chamber one, provides a suitable environment for the maintenance of the biofilm, promotes the growth and metabolism of the biofilm, and improves the service life and sewage treatment effect of the MBBR biological filler. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a municipal nitrification and denitrification integrated equipment three-dimensional structure schematic diagram of the application;

[0025] Figure 2 It is a drainage pipe, communication pipe, transport pipe and auger one combination three-dimensional structure schematic diagram of the application;

[0026] Figure 3 It is a reaction tube, communication pipe, transport pipe and auger one combination three-dimensional structure schematic diagram of the application;

[0027] Figure 4 It is a reaction tube, communication pipe, transport pipe, auger one, interceptor, auger two, auger three, intercepting plate, mounting pipe and auger four combination three-dimensional structure schematic diagram of the application;

[0028] Figure 5 It is an auger one, auger three, intercepting plate, aeration hole one, groove and aeration hole two combination three-dimensional structure schematic diagram of the application;

[0029] Figure 6 It is a Figure 5 The enlarged view of the area A in the middle;

[0030] Figure 7 It is a collection box three-dimensional structure schematic diagram of the application;

[0031] Figure 8 It is an auger one, intercepting net and guide pipe combination three-dimensional structure schematic diagram of the application.

[0032] Wherein: 1 - drain pipe, 2 - communication pipe, 3 - transport pipe, 4 - auger one, 5 - interceptor, 6 - auger two, 7 - auger three, 8 - intercepting plate, 9 - mounting pipe, 10 - auger four, 101 - motor one, 102 - motor two, 103 - motor three, 105 - intercepting net, 106 - motor five, 107 - motor six, 108 - motor seven, 201 - brush, 202 - collection box, 1001 - reaction tube, 3001 - maintenance cabin one, 3002 - maintenance cabin two, 3003 - feeding area, 4001 - aeration hole one, 4002 - groove, 4003 - reaction cabin one, 4004 - reaction cabin two, 7001 - aeration hole two, 10501 - conduit. DETAILED DESCRIPTION

[0033] The application will be further described below in connection with specific embodiments. It should be noted that unless otherwise explicitly defined and limited, terms such as: provided, installed, connected, linked should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances. Example 1

[0034] A municipal nitration and denitrification integrated device, as shown in Figures 1-8 , comprising a drain pipe 1; a connecting port is formed on the drain pipe 1;

[0035] It also includes the communication pipe 2, the transport pipe 3, the auger one 4, the intercepting net 105, the auger two 6, the auger three 7, the motor one 101, the motor two 102 and the motor three 103; The drain pipe 1 is provided with a reaction pipe 1001; Both ends of the reaction pipe 1001 are provided with the intercepting net 105; The intercepting net 105 is provided with the auger one 4; The drain pipe 1 is provided with the motor one 101; The output end of the motor one 101 is provided with a helical gear; The auger one 4 is provided with a helical gear; The helical gear of the output end of the motor one 101 is engaged with the helical gear on the auger one 4; The output end of the motor one 101 is connected with the auger one 4; The reaction pipe 1001 is installed with two communication pipes 2; The communication pipe 2 is provided with the auger two 6; All the communication pipes 2 are commonly connected with a transport pipe 3; The transport pipe 3 is provided with the auger three 7 through a mounting bracket; The transport pipe 3 is provided with the motor two 102; The output end of the motor two 102 is connected with the auger two 6; The transport pipe 3 is provided with the motor three 103; The output end of the motor three 103 is provided with a helical gear; The auger three 7 is provided with a helical gear; The helical gear of the output end of the motor three 103 is engaged with the helical gear on the auger three 7; The auger one 4 is provided with a plurality of aeration holes one 4001; The auger three 7 is provided with aeration holes two 7001; The rotating shafts of the auger one 4 and the auger three 7 are hollow structures; The intercepting net 105 is provided with a guide pipe 10501; The guide pipe 10501 is communicated with the aeration holes one 4001 on the rotating shaft of the auger one 4; The mounting bracket connected with the auger three 7 in the transport pipe 3 is provided with an air pipe, one end of the pipe extends out of the transport pipe 3 and is connected with an air pump, and the other end is communicated with the aeration holes two 7001 on the auger three 7; The reaction pipe 1001 is provided with MBBR biological fillers.

[0036] It also includes the brush 201; The auger three 7 is provided with the brush 201.

[0037] It also includes the collection box 202; The auger one 4 is provided with a plurality of collection boxes 202; The collection box 202 is provided with an inlet.

[0038] Also includes the interceptor 5, the intercepting plate 8, the installation pipe 9, the auger four 10, the motor five 106, the motor six 107 and the motor seven 108;The transport pipe 3 is provided with the installation pipe 9;The other end of the installation pipe 9 is communicated with the reaction tube 1001;The installation pipe 9 is located between the two communication pipes 2, that is, the midpoint of the transport pipe 3;The auger three 7 in the transport pipe 3 is divided into two;The installation pipe 9 is provided with the auger four 10;The transport pipe 3 is provided with the motor five 106;The output end of the motor five 106 is connected with the auger four 10;The transport pipe 3 is provided with a plurality of intercepting plates 8;The transport pipe 3 is provided with a plurality of motor six 107;The output end of the motor six 107 is fixedly connected with the adjacent intercepting plate 8 through the rotating shaft;The number of the motor six 107 is same with the number of the intercepting plate 8;The transport pipe 3 is divided into maintenance cabin one 3001 and maintenance cabin two 3002 by the two intercepting plates 8, and the feeding area 3003 between the two intercepting plates 8;The auger one 4 is provided with two interceptors 5;The reaction tube 1001 is provided with a plurality of motor seven 108, the number of which is same with the number of the interceptor 5;The output end of the motor seven 108 is fixedly connected with the adjacent interceptor 5 through the rotating shaft;The interceptor 5 is provided with a communication hole, and the interceptor 5 divides the auger one 4 into reaction cabin one 4003 and reaction cabin two 4004.

[0039] The blade of the auger one 4 is provided with a groove 4002, which cooperates with the auger one 4 to stir the water flow.

[0040] The inlet of the collection box 202 is provided with a large diameter, and the other side is provided with a filter screen with a small diameter.

[0041] The reaction tube 1001 is detachably connected with the drain pipe 1, which is convenient for replacing the MBBR biological filler.

[0042] The transport pipe 3 is provided with a feeder, which is used for feeding sugar water into the transport pipe 3, and is used for maintaining the MBBR biological filler.

[0043] The auger one 4, the auger two 6 and the auger three 7 are all sprayed with an anticorrosive coating.

[0044] A municipal nitrification and denitrification treatment process, comprising the following steps:

[0045] Step one: installation and sewage inflow, workers first install the reaction tube 1001 on the drain pipe 1. Then, the detected sewage flows to the reaction tube 1001, passes through the intercepting net 105, and is transported into the reaction tube 1001 by the auger one 4.

[0046] Step two: the auger one 4 prolongs the residence time of the sewage in the reaction tube 1001, increases the contact time of the sewage and the MBBR biological filler, and facilitates the MBBR biological filler to adsorb the bacteria in the sewage. And the air pump in the auger one 4 starts to work, and sends gas to the rotating shaft on the auger one 4.

[0047] Step three: the circulation of MBBR biological fillings. When the MBBR biological fillings move to the left side of the reaction tube 1001, the auger two 6 is driven by the motor two 102 to rotate and move the MBBR biological fillings upward into the transport tube 3. Then, the auger three 7 is driven by the motor three 103 to rotate and move the MBBR biological fillings to the right through the communication pipe 2 which is connected to the transport tube 3 on the right side of the reaction tube 1001 to re-enter the reaction tube 1001 to contact with the sewage.

[0048] Step four: the aged biofilm on the MBBR biological fillings is cleaned by the bristles 201 on the auger three 7.

[0049] Step five: the transport tube 3 is divided into maintenance chamber one 3001 and maintenance chamber two 3002, and the MBBR biological fillings are maintained by alternating the operation of the maintenance chamber one 3001 and the maintenance chamber two 3002.

[0050] Step six: the sludge is collected in the reaction tube 1001 by the collecting box 202.

[0051] Step seven: the collecting box 202 is cleaned by reversing the auger one 4.

[0052] The working process of the municipal nitration and denitrification integrated device is as follows:

[0053] Firstly, the worker installs the reaction tube 1001 on the drain pipe 1, and then the detected sewage flows to the reaction tube 1001. The sewage passes through the right side of the intercepting net 105 and is transported into the reaction tube 1001 by the auger one 4. At the same time, the gas pump connected with the conduit 10501 starts to work to transport gas to the rotating shaft on the auger one 4. The gas is sprayed out through the aeration hole one 4001 on the rotating shaft to provide oxygen for the sewage in the reaction tube 1001, so as to facilitate the fermentation of bacteria on the MBBR biological fillings, and at the same time, the MBBR biological fillings are in a suspended state in the water.

[0054] Further, the MBBR biological fillings in the reaction tube 1001 are conveyed by the auger 4 and move along the reaction tube 1001 from right to left. When the MBBR biological fillings move to the left side of the reaction tube 1001, the MBBR biological fillings are intercepted by the left side of the intercepting net 105 to avoid the MBBR biological fillings from flowing away. If the MBBR biological fillings are accumulated on the left side of the reaction tube 1001, the rotation of the auger 4 is affected, and the MBBR biological fillings are accumulated together, which reduces the contact time of the MBBR biological fillings with the sewage and causes the nitrification and denitrification reaction to be not complete. Therefore, the application designs the communication pipe 2 and the auger 6. When the MBBR biological fillings move to the left side of the reaction tube 1001, the auger 6 is driven to rotate by the motor 2 102, the MBBR biological fillings are driven to move upward by the auger 6, and the MBBR biological fillings enter the conveying pipe 3. Subsequently, the auger 7 is driven to rotate by the motor 3 103, the MBBR biological fillings are driven to move rightward by the auger 7 in the conveying pipe 3, and when the MBBR biological fillings move to the right end of the reaction tube 1001, the MBBR biological fillings enter the communication pipe 2 which is in communication with the conveying pipe 3 at the right side of the reaction tube 1001, so that the circulation of the fillings is formed, the MBBR biological fillings re-enter the reaction tube 1001 to contact with the sewage and adsorb the bacteria in the sewage. Since the biological membrane on the MBBR biological fillings is aging, the aged biological membrane affects the metabolism of the biological membrane and reduces the treatment effect of the MBBR biological fillings on the sewage. Therefore, when the MBBR biological fillings are used for a period of time, the MBBR biological fillings enter the conveying pipe 3, the MBBR biological fillings are moved by the auger 7, gas is pumped into the rotating shaft on the auger 7 by the air pump connected with the auger 7, the auger 7 is installed in the conveying pipe 3 by the mounting frame, the mounting frame connected with the auger 7 is provided with an air pipe, one end of the air pipe extends out of the conveying pipe 3 and is connected with the air pump, and the other end is connected with the aeration hole 2 701, the gas is sprayed out through the aeration hole 2 701, and the MBBR biological fillings are stirred by the airflow. At the same time, the MBBR biological fillings are brushed by the bristles 201 arranged on the auger 7. The MBBR biological fillings are impacted under the cooperation of the airflow, the aged biological membrane and sludge on the surface of the MBBR biological fillings are fallen off, the state of the MBBR biological fillings is that, since the secretion of the extracellular polymeric substance of the microorganism is gradually reduced during the growth of the biological membrane, the viscosity of the biological membrane is weakened. In this case, when the biological fillings are impacted by the water flow or external force such as mechanical stirring, the aged biological membrane is more likely to fall off from the surface of the fillings. And since the conveying distance is short, the impact time of the biological membrane on the MBBR biological fillings is short, and therefore the biological membrane fallen off from the MBBR biological fillings is the aged biological membrane which is easy to fall off.

[0055] Further, in the use process, the MBBR biological filler needs to be maintained after long time use, the biofilm on the surface of the MBBR biological filler is maintained, but at this time, the sewage may still flow out of the drain pipe 1, therefore, the present application designs the intercepting plate 8, the installation pipe 9, the auger four 10 and the interceptor 5; at the same time, the present application divides the auger three 7 in the conveying pipe 3 into two, the installation pipe 9 is located between the two communication pipes 2, that is, at the midpoint of the conveying pipe 3. The place in the conveying pipe 3 which communicates with the installation pipe 9 is provided with the intercepting plate 8 on both sides. The conveying pipe 3 is divided into the maintenance cabin one 3001 and the maintenance cabin two 3002 by the two intercepting plates 8, and the feeding area 3003 between the two intercepting plates 8, and the installation pipe 9 is arranged in the middle of the conveying pipe 3; the auger four 10 is arranged in the installation pipe 9, and the interceptor 5 is arranged in the reaction pipe 1001; at the same time, the communication hole is formed in the interceptor 5, and the auger one 4 is divided into the reaction cabin one 4003 and the reaction cabin two 4004 by the interceptor 5. When the MBBR biological filler needs to be maintained, taking the maintenance cabin one 3001 as the maintenance area and the reaction cabin two 4004 as the reaction area as an example, the maintenance cabin two 3002 is used to transport the MBBR biological filler at this time, and the working principle is as follows: the MBBR biological filler and the sewage are moved from right to left in the reaction pipe 1001 by the auger one 4, at this time, the interceptor 5 in the reaction cabin two 4004 is driven to rotate clockwise from right to left by the motor seven 108, the flow passage is opened, and the MBBR biological filler passes through, at this time, the interceptor 5 in the reaction cabin one 4003 is in the closed state, and only the sewage is allowed to pass through, at this time, the MBBR biological filler is intercepted by the interceptor 5 in the reaction cabin one 4003, at this time, the auger four 10 in the installation pipe 9 is driven to rotate by the motor five 106, the MBBR biological filler is moved upward into the conveying pipe 3, at this time, the intercepting plate 8 in the maintenance cabin one 3001 is in the closed state, and the intercepting plate 8 in the maintenance cabin two 3002 is driven to rotate clockwise from right to left by the motor six 107, so that the maintenance cabin two 3002 and the feeding area 3003 are communicated. The MBBR biological filler in the feeding area 3003 is moved to the right by the auger three 7 in the maintenance cabin two 3002, and is returned to the auger one 4 through the right side communication pipe 2, the transportation and cleaning of the MBBR biological filler are completed, a cycle is formed, and the MBBR biological filler in the drain pipe 1 can work continuously.

[0056] It should be noted that the biological filler in the maintenance chamber 3001 is moved upward into the maintenance chamber 3001 by the auger 6 in the communication pipe 2 on the left side of the drain pipe 1 during maintenance, at this time, the intercepting plate 8 on the right side of the maintenance chamber 3001 is in a closed state, when the MBBR biological filler in the maintenance chamber 3001 is stored to a certain amount, the auger 7 in the maintenance chamber 3001 stops rotating, and the intercepting plates 8 at both ends of the maintenance chamber 3001 are all closed. Then, the white sugar is put into the maintenance chamber 3001 by the feeder, at the same time, when the auger 6 drives the MBBR biological filler to move, part of the water flow in the reaction pipe 1001 enters the maintenance chamber 3001, at this time, the sewage entering the maintenance chamber 3001 contains sludge, and the sludge contains nutrients, which can be used to maintain the MBBR biological filler, and at the same time, the gas pump in the auger 7 blows the gas into the auger 7 shaft through the aeration hole 7001, which increases the oxygen content in the maintenance chamber 3001.

[0057] Further, when the MBBR biological filler treats the 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, the collecting box 202 is arranged on the auger 4, and the gas sprayed from the aeration hole 4001 and the collecting box 202 cooperate with each other when the auger 4 conveys the sewage. The sewage hits the collecting box 202, the sewage enters through the inlet on the collecting box 202, and then is discharged from the filter screen on the other side of the collecting box 202. Since the density of the filter screen is large, the sludge will stay in the collecting box 202 and cooperate with the biofilm on the MBBR biological filler to further decompose the organic matter in the sewage.

[0058] Further, the sludge in the collection tank 202 needs to be replaced regularly to avoid aging and reduce activity. The present application needs to clean the auger 4 and the collection tank 202 regularly. However, during the cleaning process, the MBBR biological filler hinders the cleaning effect of the auger 4 and the collection tank 202. Therefore, the present application transports the MBBR biological filler to the conveying pipe 3 through the auger 6, so that the MBBR biological filler stays in the conveying pipe 3 and the communication 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. When cleaning, the worker connects the water pipe to the left connecting port of the reaction pipe 1001, and at the same time connects the sludge pump to the right connecting port of the reaction pipe 1001 through the pipeline. Water is injected into the reaction pipe 1001 through the left connecting port of the reaction pipe 1001. At this time, the auger 4 is driven in reverse by the motor 101, 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 the filter screen, and the water flow passes through the filter screen to flush the inside of the collection tank 202, driving the sludge in the collection tank 202 to be discharged from the inlet of the collection tank 202. Then the sewage is pumped away by the sludge pump.

[0059] It should be noted that the shaft of the auger 4 and the auger 3 is provided with an air pump, and the output end of the air pump is connected with the shaft of the auger 4 and the auger 3 respectively, and the input end of the air pump is connected with the outside through the pipeline.

[0060] According to the above working process, the present application has the following effects:

[0061] The auger 4 prolongs the residence time of sewage in the reaction pipe 1001, increases the contact time of sewage and MBBR biological filler, thereby providing more sufficient time for MBBR biological filler to adsorb bacteria in sewage, so that bacteria can more effectively decompose organic matter in sewage, and improve the sewage treatment efficiency.

[0062] When the MBBR biological filler enters the conveying pipe 3, the air pump pumps gas into the shaft of the auger 3 when the auger 3 drives the MBBR biological filler to move. The gas is sprayed out through the aeration hole 7001, and the bristles 201 on the auger 3 brush the MBBR biological filler. Under the joint action of the airflow and the bristles 201, the aging biological membrane and sludge on the surface of the MBBR biological filler fall off. This design can effectively remove the aging part on the surface of the MBBR biological filler, prevent it from affecting the metabolism of the biological membrane, and thus maintain the good treatment effect of the MBBR biological filler on the sewage.

[0063] When the MBBR biological packing material requires maintenance after prolonged use, sugar is added to the maintenance chamber 3001 via a feeder. Simultaneously, as the auger 6 moves the MBBR biological packing material, some water from the reaction pipe 1001 flows into the maintenance chamber 3001. The wastewater entering the maintenance chamber 3001 contains sludge, and the nutrients in the sludge can be used to maintain the MBBR biological packing material. Furthermore, air is pumped into the shaft of auger 7 via an air pump, and the air is blown out through aeration holes 7001, increasing the oxygen content in the maintenance chamber 3001. This maintenance method provides nutrients and a suitable environment for the biofilm on the MBBR biological packing material, promoting its growth and metabolism, maintaining its good activity, and thus improving the service life of the MBBR biological packing material and the wastewater treatment effect.

[0064] The additional technical effects of this invention are as follows:

[0065] Among them, such as Figure 6 As shown, several grooves 4002 are provided on the screw conveyor 4. When the screw conveyor 4 transports sewage, the grooves 4002 on the screw conveyor 4 cooperate with the airflow sprayed from the aeration holes 4001 to make the sewage hit the grooves 4002, which agitates the sewage and makes the sewage fully mixed with the MBBR biological packing.

[0066] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the process and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A municipal nitration and denitrification integrated device, comprising a drain pipe (1); a connecting port is formed on the drain pipe (1); characterized in that: It further includes a communication pipe (2); the drain pipe (1) is provided with a reaction pipe (1001); both ends of the reaction pipe (1001) are provided with a screen (105); the screen (105) is provided with a screw conveyor (4) for conveying water flow; the drain pipe (1) is provided with a motor (101); the output end of the motor (101) is provided with a helical gear; the screw conveyor (4) is provided with a helical gear; the helical gear at the output end of the motor (101) is engaged with the helical gear on the screw conveyor (4); the output end of the motor (101) is connected with the screw conveyor (4); the reaction pipe (1001) is installed with a plurality of communication pipes (2); the communication pipe (2) is provided with a screw conveyor (6); all the communication pipes (2) are commonly connected with a conveying pipe (3); the conveying pipe (3) is provided with a screw conveyor (7) through a mounting frame; the conveying pipe (3) is provided with a motor (102); the output end of the motor (102) is connected with the screw conveyor (6); the conveying pipe (3) is provided with a motor (103); the output end of the motor (103) is provided with a helical gear; the screw conveyor (7) is provided with a helical gear; the helical gear at the output end of the motor (103) is engaged with the helical gear on the screw conveyor (7); the screw conveyor (4) is provided with a plurality of aeration holes (4001); the screw conveyor (7) is provided with aeration holes (7001); the rotating shafts of the screw conveyors (4) and (7) are both hollow structures; the screen (105) is provided with a guide pipe (10501); the guide pipe (10501) is communicated with the aeration holes (4001) on the rotating shaft of the screw conveyor (4); the mounting frame connected with the screw conveyor (7) in the conveying pipe (3) is provided with an air pipe, one end of the air pipe extends out of the conveying pipe (3) and is connected with an air pump, and the other end is communicated with the aeration holes (7001) on the screw conveyor (7); the reaction pipe (1001) is provided with MBBR biological fillers.

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

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

4. The integrated equipment for municipal nitrification and denitrification treatment according to claim 1, characterized in that: It also includes interceptor (5), intercepting plate (8), mounting pipe (9), auger four (10), motor five (106), motor six (107) and motor seven (108); The transport pipe (3) is provided with a mounting pipe (9); The other end of the mounting pipe (9) is communicated with the reaction tube (1001); The auger three (7) in the transport pipe (3) is divided into two; The mounting pipe (9) is provided with an auger four (10); The transport pipe (3) is provided with a motor five (106); The output end of the motor five (106) is connected with the auger four (10); The transport pipe (3) is provided with a plurality of intercepting plates (8); The transport pipe (3) is provided with a plurality of motor six (107); The output end of the motor six (107) is fixedly connected with the adjacent intercepting plate (8) through the shaft; The number of motor six (107) is same with the intercepting plate (8); The transport pipe (3) is divided into maintenance chamber one (3001) and maintenance chamber two (3002) by two intercepting plates (8), and the feeding area (3003) between the two intercepting plates (8); The auger one (4) is provided with a plurality of interceptors (5); The reaction tube (1001) is provided with a plurality of motor seven (108) which number is same with the number of interceptors (5); The output end of the motor seven (108) is fixedly connected with the adjacent interceptor (5) through the shaft; The interceptor (5) is provided with a communication hole; The interceptor (5) divides the auger one (4) into reaction chamber one (4003) and reaction chamber two (4004).

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

6. The integrated equipment for municipal nitrification and denitrification treatment according to claim 3, characterized in that: The inlet of the collection box (202) is provided with a larger diameter, and the other side is provided with a smaller diameter filter screen.

7. The integrated equipment for municipal nitrification and denitrification treatment according to claim 4, characterized in that: The reaction tube (1001) is detachably connected with the drain pipe (1), which is convenient for replacing the MBBR biological filler.

8. The integrated equipment for municipal nitrification and denitrification treatment according to claim 4, characterized in that: The transport pipe (3) is provided with a feeder.

9. The integrated equipment for municipal nitrification and denitrification treatment according to claim 5, characterized in that: The auger one (4), the auger two (6) and the auger three (7) are all sprayed with an anticorrosive coating.

10. A municipal nitrification-denitrification treatment process using the municipal nitrification-denitrification treatment integrated device according to claim 9, characterized by: The steps include: Step one: installation and sewage inflow, workers first install the reaction tube (1001) on the drain pipe (1); Then, the detected sewage flows to the reaction tube (1001), passes through the intercepting net (105), and is transported into the reaction tube (1001) through the auger one (4); Step two: the auger one (4) prolongs the residence time of the sewage in the reaction tube (1001), increases the contact time of the sewage and the MBBR biological filler, and facilitates the adsorption of the bacteria in the sewage by the MBBR biological filler; And the air pump in the auger one (4) starts to work, and air is transported to the shaft of the auger one (4); Step three: the circulation of MBBR biological fillings, when the MBBR biological fillings move to the left side of the reaction tube (1001), the auger two (6) is driven to rotate by the motor two (102) to move the MBBR biological fillings upward into the transport tube (3), then the auger three (7) is driven to rotate by the motor three (103) to move the MBBR biological fillings to the right through the auger three (7) to re-enter the reaction tube (1001) through the communication tube (2) which is in communication with the transport tube (3) on the right side of the reaction tube (1001) to contact with the sewage; Step four: the aged biofilm on the MBBR biological fillings is cleaned by the bristles (201) on the auger three (7); Step five: the transport tube (3) is divided into maintenance chamber one (3001) and maintenance chamber two (3002), the MBBR biological fillings are maintained by making the maintenance chamber one (3001) and the maintenance chamber two (3002) work alternately; Step six: the sludge is collected in the reaction tube (1001) by the collecting box (202); Step seven: the collecting box (202) is cleaned by reversing the auger one (4).

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