ABR wastewater treatment device and method integrating biochemical deodorization and efficiency improvement functions

Abstract

This invention discloses an ABR wastewater treatment device and method integrating biochemical deodorization and efficiency improvement functions, relating to the field of wastewater treatment technology. It includes: an ABR reactor assembly comprising at least two ABR reaction chambers and a transfer tank connected sequentially; a reflux and sludge discharge assembly comprising a reflux pipe assembly connected to at least two ABR reaction chambers, with a reflux pump pipe and a sludge discharge pump pipe connected to the reflux pipe assembly; the reflux pump pipe is connected to the transfer tank and equipped with a reflux control valve, and the sludge discharge pump pipe is equipped with a sludge discharge control valve; and a deodorization assembly comprising deodorizing filter media and a corresponding deodorizing dosing module, with the deodorizing filter media connected to the exhaust ends of the two ABR reaction chambers. This invention solves the problems of easy sludge deposition, significant impact from water quality fluctuations, low treatment efficiency, and high footprint and energy consumption inherent in existing ABR reactors for wastewater treatment.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to an ABR wastewater treatment device and method that integrates biochemical deodorization and efficiency improvement functions. Background Technology

[0002] In existing technologies, anaerobic baffled reactors (ABR reactors) are highly efficient anaerobic reactors composed of multiple reaction chambers. Each reaction chamber is a relatively independent upflow sludge bed system. Wastewater flows sequentially through each reaction chamber from the influent end via a baffled path, increasing the reaction time of the wastewater within the system and improving the overall reaction efficiency. However, current ABR reactors generally suffer from the following problems:

[0003] 1) The high concentration of wastewater received by the front-end ABR reaction chamber leads to a significant impact of water quality on the entire ABR reactor;

[0004] 2) Relying solely on the hydraulic stirring of water flowing through each reaction chamber is not effective, and sludge is easily deposited at the bottom of each reaction chamber, affecting the overall treatment effect of the ABR reactor;

[0005] 3) The odor generated by the ABR reactor components during the reaction process requires an additional independent deodorization device or biogas ignition device, resulting in high overall construction and operation costs.

[0006] Furthermore, Chinese Patent Publication No. CN 206273787 U discloses a wastewater treatment device based on the ABR process, which includes a pulse-type water distributor, an ABR reaction chamber, a delivery pipe, a water distribution pipe, and baffles. The delivery pipe is connected to the water distribution pipe via the pulse-type water distributor, and then to the ABR reaction chamber. The baffles are spaced apart inside the ABR reaction chamber, extending from the top to the bottom, isolating the ABR reaction chamber into sequentially connected upward flow chambers and downward flow chambers, forming a meandering drainage channel with upward and downward flow. This invention uses a pulse-type water distributor, which divides the water inlet into four branches to enter the four ABR reaction chambers, providing pulsed water distribution to each reaction chamber. However, this device still uses a pulsed water distribution method for each reaction chamber, further increasing the pollutant concentration in the downstream reaction chambers, affecting the overall treatment effect of the ABR reactor, and requiring an additional deodorization device to treat the odor generated by the system. Summary of the Invention

[0007] To address these issues, the present invention provides an ABR wastewater treatment device and method that integrates biochemical deodorization and efficiency enhancement functions, thereby solving the technical problems of existing ABR reactors for wastewater treatment scenarios, such as easy sludge deposition, significant impact from water quality fluctuations, low treatment efficiency, and high footprint and energy consumption.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] An ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions includes:

[0010] An ABR reactor assembly includes at least two ABR reaction chambers and at least one transfer tank that are connected in sequence.

[0011] The reflux and sludge discharge assembly includes a reflux pipe assembly, one end of which is connected to at least two ABR reaction chambers, and the other end of which is connected to a reflux pump pipe and a sludge discharge pump pipe. The reflux pump pipe is connected to the transfer tank, and the reflux pump pipe is equipped with a reflux control valve, and the sludge discharge pump pipe is equipped with a sludge discharge control valve.

[0012] The deodorization component includes deodorization filter media and a deodorization dosing module for adding chemicals to the deodorization filter media. The deodorization filter media is connected to the exhaust ends of at least two sets of the ABR reaction chambers.

[0013] Based on the above technical solution, the present invention is further described as follows:

[0014] As a further aspect of the present invention

[0015] The ABR reactor assembly includes a first ABR reaction chamber, a second ABR reaction chamber, a third ABR reaction chamber, a fourth ABR reaction chamber, and a transfer tank, which are sequentially assembled and connected.

[0016] The first ABR reaction chamber is connected to an inlet pipe for receiving wastewater, and the outlet end of the inlet pipe 17 extends to the bottom of the first ABR reaction chamber.

[0017] The second ABR reaction chamber is connected to the transfer tank via a series of water pipes.

[0018] The water pipe assembly includes a first water pipe, a second water pipe, a third water pipe, and a fourth water pipe;

[0019] The second ABR reaction chamber is connected to the first ABR reaction chamber by a first water pipe, the third ABR reaction chamber is connected to the second ABR reaction chamber by a second water pipe, the fourth ABR reaction chamber is connected to the third ABR reaction chamber by a third water pipe, and the transfer tank is connected to the fourth ABR reaction chamber by a fourth water pipe; the outlet ends of the first water pipe, the second water pipe, and the third water pipe extend to the bottom of the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber, respectively.

[0020] As a further aspect of the present invention

[0021] The first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber are all equipped with suspended chamber packing material inside;

[0022] The silo packing is configured as flexible silo packing, and the silo packing is coated with microorganisms that degrade pollutants;

[0023] The inlet ends of the first water pipe, the second water pipe, the third water pipe, and the fourth water pipe are all located above the packing material of the silo.

[0024] As a further aspect of the present invention

[0025] The reflux tube assembly includes a first reflux tube, a second reflux tube, a third reflux tube, and a fourth reflux tube;

[0026] The return pump pipe includes a return main pipe and a return water pump;

[0027] The sludge discharge pump pipe includes a sludge discharge pipe and a sludge discharge pump;

[0028] One end of the first reflux pipe, the second reflux pipe, the third reflux pipe, and the fourth reflux pipe extends to the bottom of the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber, respectively. The other ends of the first reflux pipe, the second reflux pipe, the third reflux pipe, and the fourth reflux pipe are connected to the main reflux pipe and then connected to the main reflux pipe and the sludge discharge pipe, respectively.

[0029] The inlet end of the return main pipe extends to the bottom of the transfer tank, and the inlet end of the return main pipe is connected to a return water pump.

[0030] A sludge pump is installed upstream of the sludge discharge path at the sludge discharge end of the sludge discharge pipe.

[0031] The reflux control valve is assembled on the reflux main pipe;

[0032] The sludge discharge control valve is installed on the sludge discharge pipe.

[0033] As a further aspect of the present invention

[0034] The reflux and sludge discharge assembly also includes a control valve group;

[0035] The control valve group includes a first control valve, a second control valve, a third control valve, and a fourth control valve;

[0036] The first control valve, the second control valve, the third control valve, and the fourth control valve are respectively installed in the first return pipe, the second return pipe, the third return pipe, and the fourth return pipe, and are used to adjust the flow rate of each return pipe by adjusting the opening degree of each control valve.

[0037] As a further aspect of the present invention

[0038] The deodorization component also includes an air distribution module and an odor inlet pipe;

[0039] The gas distribution module is provided in several groups. Each group of gas distribution modules is a tunnel-shaped shell located above each reaction chamber. Adjacent groups of gas distribution modules are connected by a socket, and the gas distribution modules connected by the socket are provided with several odor exhaust pipes through the end cap openings at both ends of the whole.

[0040] Ventilation channels are provided on the upper part of the partition plates between the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber and the fourth ABR reaction chamber;

[0041] The gas distribution module is connected to at least one set of ABR reaction chambers via several odor inlet pipes, and the gas in each ABR reaction chamber is transferred to the gas distribution module via the odor inlet pipes.

[0042] The deodorizing filter material is positioned on the upper part of the air distribution module, and the air distribution module has a number of gas diffusion holes that are connected to the deodorizing filter material on its top semi-circular shell.

[0043] As a further aspect of the present invention

[0044] The deodorization components also include a green plant layer, a duct, and a wind turbine.

[0045] The green plant layer is disposed on top of the deodorizing filter material, and the green plant layer can adsorb the carbon dioxide formed by degradation and form an ecological interception layer.

[0046] The air extraction pipes are provided in several sections, each of which is vertically inserted into the deodorizing filter material, and each of the air extraction pipes is equipped with a wind turbine at its top.

[0047] As a further aspect of the present invention

[0048] The deodorization assembly also includes a deodorization overflow pipe;

[0049] The outlet end of the deodorizing overflow pipe is connected to the top of the first ABR reaction chamber, and the inlet end of the deodorizing overflow pipe is connected to the deodorizing filter material.

[0050] The deodorizing overflow pipe is configured as a sieve pipe and / or a sieve bucket.

[0051] An ABR wastewater treatment method using an ABR wastewater treatment device integrating biochemical deodorization and efficiency enhancement functions specifically includes the following steps:

[0052] Wastewater enters the ABR reactor assembly through a front-end lift pump and continues to flow into the bottom of the first ABR reaction chamber. Wastewater flowing through the first, second, third, and fourth ABR reaction chambers all enters through the bottom-inlet and exits through the water pipe assembly. During the exiting process, the wastewater passes through the packing material from bottom to top and reacts fully with the microorganisms attached to the packing material. At the same time, the packing material prevents sludge from being lost into the next reaction chamber.

[0053] When the wastewater recirculation mixing process is carried out, the recirculation control valve is opened while the sludge discharge control valve is closed. The recirculation water pump draws the treated water from the transfer tank into the bottom of the first ABR reaction chamber through the first to fourth recirculation pipes, respectively. The flow rate of water entering the first to fourth ABR reaction chambers is regulated by the first to fourth control valves. At this time, the recirculation water and the current flow water perform hydraulic mixing on each ABR reaction chamber, so that the sludge at the bottom is suspended in the reaction chamber, and the wastewater and sludge are in more complete contact, improving the tank capacity utilization. At the same time, the treated water from the transfer tank is used to dilute the water entering the ABR reaction chamber, strengthening the system's shock resistance.

[0054] When the sludge discharge process is carried out, the control reflux control valve is closed and the sludge discharge control valve is opened at the same time. The sludge discharge pump discharges the sludge from each ABR reaction chamber through the first reflux pipe to the fourth reflux pipe. Since the sludge concentration in the front ABR reaction chamber should be higher than that in the back ABR reaction chamber, the opening of the first control valve to the fourth control valve is adjusted to control the sludge discharge from different ABR reaction chambers at the same time and evenly.

[0055] Connect the spray pipe on top of the deodorizing filter material to the deodorizing dosing module. Select plant liquid as the agent inside the deodorizing dosing module. The agent is pumped into the spray pipe through the dosing pump. The spray head atomizes the agent and sprays it evenly onto the deodorizing filter material to keep it moist.

[0056] Odors inside the ABR reactor assembly enter the gas distribution module through the odor inlet pipe, and then enter the deodorizing filter media through the gas diffusion holes at the top of the gas distribution module, where they are intercepted.

[0057] At this time, under the action of external natural wind, the wind turbine blades rotate automatically, drawing out the odor from the air distribution module. The odor is adsorbed by the deodorizing filter material wetted with deodorizing agent. Subsequently, the microorganisms attached to the surface of the deodorizing filter material degrade the odor. At the same time, the odor reacts chemically with the deodorizing agent, changing the chemical composition of the odor and thus eliminating the odor. The carbon dioxide produced by the degradation of odor by microorganisms is adsorbed by the green plant layer on top of the deodorizing filter material, achieving low carbon emissions. At the same time, the green plant layer on top can form an ecological interception layer to prevent the odor from overflowing, forming a double protection. The purified gas is drawn out through the duct under the action of the wind turbine.

[0058] As a further aspect of the present invention, the following steps are also included:

[0059] The deodorization overflow pipe located at the top of the first ABR reaction chamber discharges the excess chemical solution and rainwater in the deodorization filter media back to the ABR reaction chamber at the front end of the ABR reactor component, so that the excess chemical solution, rainwater and the incoming sewage are treated and utilized by the ABR reactor component at the same time.

[0060] The present invention has the following beneficial effects:

[0061] 1. This invention utilizes the treated water from the end-of-pipe treatment as a recirculation agitator. The agitation intensity of different reaction chambers can be adjusted by controlling the valve to prevent sludge deposition, improve tank capacity utilization, and simultaneously dilute the concentration of pollutants in the influent to the ABR reactor components, thereby improving the system's shock resistance and reducing pH adjustment costs.

[0062] 2. The system uses a single pipeline for sludge discharge and recirculation mixing, simplifying the internal piping of the equipment. By adjusting the control valve, reaction chambers with different sludge concentrations can discharge sludge simultaneously, which is convenient for operation and maintenance and has low construction and operating costs.

[0063] 3. The deodorizing filter material of the present invention utilizes biological and chemical deodorization, and green plants are planted on the top of the deodorizing filter material to form multiple protections, significantly enhance the deodorizing effect, and prevent odor from overflowing.

[0064] 4. The soil covering layer on top of the device serves as a deodorization component, saving floor space and beautifying the landscape.

[0065] 5. The deodorization component of this invention uses a wind-powered fan, which utilizes external wind force and the temperature difference between the inside and outside of the duct to make the wind-powered fan rotate and draw the odor into the deodorization component, while the purified gas is extracted from the system.

[0066] 6. This invention requires fewer mechanical and electrical devices, has low operating costs, and is easy to maintain. Attached Figure Description

[0067] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0068] Figure 1 This is a schematic diagram of the overall main structure of the ABR wastewater treatment device with integrated biochemical deodorization and efficiency improvement functions provided in an embodiment of the present invention.

[0069] Figure 2 The schematic diagram of the top structure of the ABR wastewater treatment device with integrated biochemical deodorization and efficiency improvement functions provided in the embodiments of the present invention corresponds to the ABR reactor component.

[0070] Figure 3 The diagram above shows the top view of the ABR wastewater treatment device with integrated biochemical deodorization and efficiency improvement functions provided in this embodiment of the invention, corresponding to the deodorization component.

[0071] Figure 4 A schematic diagram of the air distribution module structure in the ABR wastewater treatment device with integrated biochemical deodorization and efficiency improvement functions provided in the embodiments of the present invention.

[0072] Figure 5 A schematic diagram of the deodorization overflow pipe structure in the ABR wastewater treatment device with integrated biochemical deodorization and efficiency improvement functions provided in the embodiments of the present invention.

[0073] The attached diagram lists the components represented by each number as follows:

[0074] ABR reactor assembly 1: First ABR reaction chamber 11, Second ABR reaction chamber 12, Third ABR reaction chamber 13, Fourth ABR reaction chamber 14, Transfer tank 15, Chamber packing 16, Inlet pipe 17, Water pipe assembly 18, First water pipe 18a, Second water pipe 18b, Third water pipe 18c, Fourth water pipe 18d, Outlet pipe 19;

[0075] Return and sludge discharge assembly 2: Return pipe group 21, first return pipe 21a, second return pipe 21b, third return pipe 21c, fourth return pipe 21d, return main pipe 22, return water pump 23, sludge discharge pipe 24, sludge discharge pump 25, return regulating valve 26, sludge discharge regulating valve 27, control valve group 28, first control valve 28a, second control valve 28b, third control valve 28c, fourth control valve 28d;

[0076] Deodorization component 3: air distribution module 31, gas diffusion hole 311, odor exhaust inlet pipe 32, deodorization filter material 33, green plant layer 34, exhaust duct 35, wind power fan 36, deodorization dosing module 37, spray pipe 38, spray head 381, deodorization overflow pipe 39.

[0077] Inspection well body component 4. Detailed Implementation

[0078] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0079] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0080] like Figures 1 to 5 As shown, this embodiment of the invention provides an ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions. It includes an ABR reactor assembly 1, a reflux and sludge discharge assembly 2, a deodorization assembly 3, and a maintenance well assembly 4. The ABR reactor assembly 1 effectively serves as the foundation for a predetermined anaerobic baffled wastewater treatment process. Simultaneously, the reflux and sludge discharge assembly 2 further enables wastewater reflux and mixing corresponding to the ABR reactor assembly 1, effectively reducing sludge deposition inside the ABR reactor assembly 1. The sludge discharge function can be flexibly switched as needed, improving the continuous operational stability of the device. Furthermore, the deodorization assembly 3 effectively coordinates with the biochemical process to treat odors, eliminating the need for a separate deodorization device. The biochemical process can simultaneously act on the wastewater treatment path of the ABR reactor assembly 1, thereby significantly improving the overall wastewater treatment effect. The device is also low-energy-consuming, environmentally friendly, and easy to maintain. Specific settings are as follows:

[0081] Please refer to Figure 1 The ABR reactor assembly 1 includes a first ABR reaction chamber 11, a second ABR reaction chamber 12, a third ABR reaction chamber 13, a fourth ABR reaction chamber 14, and a transfer tank 15, which are sequentially assembled and connected. The first ABR reaction chamber 11 is connected to an inlet pipe 17 for receiving wastewater, and the outlet end of the inlet pipe 17 extends to the bottom of the first ABR reaction chamber 11. The second ABR reaction chamber 12 and the transfer tank 15 are sequentially connected and connected by a water pipe assembly 18.

[0082] Specifically, the water pipe assembly 18 includes a first water pipe 18a, a second water pipe 18b, a third water pipe 18c, and a fourth water pipe 18d; the second ABR reaction chamber 12 is connected to the first ABR reaction chamber 11 via the first water pipe 18a, the third ABR reaction chamber 13 is connected to the second ABR reaction chamber 12 via the second water pipe 18b, the fourth ABR reaction chamber 14 is connected to the third ABR reaction chamber 13 via the third water pipe 18c, and the transfer tank 15 is connected to the fourth ABR reaction chamber 14 via the fourth water pipe 18d; the outlet ends of the first water pipe 18a, the second water pipe 18b, and the third water pipe 18c extend to the bottoms of the second ABR reaction chamber 12, the third ABR reaction chamber 13, and the fourth ABR reaction chamber 14, respectively.

[0083] The first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13, and the fourth ABR reaction chamber 14 are all equipped with suspended chamber packing 16. The chamber packing 16 is preferably flexible packing such as elastic packing and / or combined packing, and microorganisms are attached to the chamber packing 16. The inlet ends of the first water pipe 18a, the second water pipe 18b, the third water pipe 18c, and the fourth water pipe 18d are all located above the chamber packing 16, so that the treated wastewater in each reaction chamber is bottom-in and top-out. This can effectively reduce the existence of dead zones in the reaction chamber, improve the tank capacity utilization, and allow the treated wastewater to pass through the chamber packing 16 from bottom to top and fully react with the microorganisms attached to the chamber packing 16, further improving the wastewater treatment effect. In addition, the chamber packing 16 can also effectively prevent sludge from being lost into the next chamber.

[0084] The transfer tank 15 is also connected to a water outlet pipe 19. The water outlet pipe 19 corresponds to a drainage height of the transfer tank 15 that is higher than the water inlet height of the fourth water pipe 18d, so that a predetermined amount of treated water can be accumulated inside the transfer tank 15 as the basis for the subsequent reflux stirring function.

[0085] Please refer to Figure 1 and Figure 2The reflux and sludge discharge assembly 2 includes a reflux pipe group 21, a reflux main pipe 22, a reflux water pump 23, a sludge discharge pipe 24, a sludge discharge pump 25, a reflux control valve 26, a sludge discharge control valve 27, and a control valve group 28; wherein, the reflux pipe group 21 includes a first reflux pipe 21a, a second reflux pipe 21b, a third reflux pipe 21c, and a fourth reflux pipe 21d, the first reflux pipe 21a, the second reflux pipe 21b, the third reflux pipe 21c, and the fourth reflux pipe One end of 21d extends to the bottom of the first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13, and the fourth ABR reaction chamber 14 respectively, and the other ends of the first return pipe 21a, the second return pipe 21b, the third return pipe 21c, and the fourth return pipe 21d are connected to the main return pipe and then connected to the main return pipe 22 and the sludge discharge pipe 24 respectively.

[0086] The inlet end of the return main pipe 22 extends to the bottom of the transfer tank 15, and a return water pump 23 is connected to the inlet end of the return main pipe 22; a sludge discharge pump 25 is installed upstream of the sludge discharge path of the sludge discharge pipe 24; a return flow control valve 26 is installed on the return main pipe 22, and a sludge discharge control valve 27 is installed on the sludge discharge pipe 24; by switching the opening and closing of the return flow control valve 26 and the sludge discharge control valve 27, the treated water accumulated inside the transfer tank 15 can be effectively returned to each reaction chamber to complete the wastewater treatment. The water recirculation and stirring function allows the sludge at the bottom of each reaction chamber to remain suspended within the chamber, facilitating more thorough contact between wastewater and sludge and improving tank capacity utilization. Simultaneously, wastewater from the transfer tank 15 is recirculated into each ABR reaction chamber, diluting the influent and enhancing the system's shock resistance. Furthermore, the sludge discharge function can be switched to actively remove sludge deposited within each reaction chamber as needed. The overall recirculation and stirring and sludge discharge functions share a single recirculation piping system, simplifying internal piping, reducing costs, facilitating operation, and improving the continuous operational stability of the device.

[0087] Please continue to refer to this. Figure 2The control valve group 28 includes a first control valve 28a, a second control valve 28b, a third control valve 28c, and a fourth control valve 28d. The first control valve 28a, the second control valve 28b, the third control valve 28c, and the fourth control valve 28d are respectively and correspondingly installed on the first return pipe 21a, the second return pipe 21b, the third return pipe 21c, and the fourth return pipe 21d. This allows for flexible adjustment of the valve opening based on the stepped sludge volume in each reaction chamber. When the sludge concentration in the front-end ABR reaction chamber should be higher than that in the rear-end ABR reaction chamber, adjusting the opening of each control valve can achieve simultaneous and uniform sludge discharge from different ABR reaction chambers, thus improving the overall functional adaptability.

[0088] As a preferred embodiment, the first reflux pipe 21a, the second reflux pipe 21b, the third reflux pipe 21c and the fourth reflux pipe 21d are all connected to the bottom of each reaction chamber with a reducing tee pipe, so as to significantly improve the anti-blocking adaptability of reflux and sludge discharge through the reducing tee pipe.

[0089] Please refer to Figure 1 , Figures 3 to 5 The deodorization component 3 is correspondingly positioned above the ABR reactor component 1. Specifically, the deodorization component 3 includes an air distribution module 31, an odor exhaust inlet pipe 32, deodorization filter media 33, a green plant layer 34, an exhaust duct 35, a wind turbine 36, a deodorization dosing module 37, and a spray pipe 38. Several sets of air distribution modules 31 are provided, each set being a tunnel-shaped shell positioned above each reaction chamber. Adjacent sets of air distribution modules 31 are connected by a socket joint, and the socket-connected air distribution modules 31 are mutually... The entire assembly is equipped with several odor-exhausting inlet pipes 32 connected to both ends of the end caps; the upper part of the partition plate of the first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13 and the fourth ABR reaction chamber 14 is provided with ventilation channels to achieve overall gas circulation inside each reaction chamber; the gas distribution module 31 is connected to at least one group of ABR reaction chambers through several odor-exhausting inlet pipes 32, so that the gas in each ABR reaction chamber is transmitted to the gas distribution module 31 through the odor-exhausting inlet pipes 32.

[0090] The gas distribution module 31 has several gas diffusion holes 311 corresponding to its top semi-circular shell, and the upper part of the gas distribution module 31 is covered with deodorizing filter material 33, so that the odor of the gas distribution module 31 can be further conducted to the position of the deodorizing filter material 33 through the gas diffusion holes 311, and can be effectively intercepted and adsorbed by the deodorizing filter material 33, and then the odor is degraded by the microorganisms attached to the surface of the deodorizing filter material 33.

[0091] The output end of the deodorizing chemical dosing module 37 is connected to a spray pipe 38. The spray pipe 38 is arranged in a "丰" or "日" shape above the deodorizing filter material 33, and a number of spray heads 381 facing the deodorizing filter material 33 are provided on the spray pipe 38. The chemical dosing module 37 is used to pump the chemical agent into the spray pipe 38 through a chemical dosing pump, and further use the spray heads 381 to atomize the chemical agent and evenly spray it onto the deodorizing filter material 33, so as to keep the deodorizing filter material 33 in a moist state. In this way, when the odor is degraded by microorganisms, a chemical reaction can occur synchronously with the deodorizing chemical agent, changing the chemical composition of the odor and thus eliminating the odor.

[0092] The deodorizing filter material 33 is preferably mainly composed of humus soil, and is internally mixed with components such as wood chips, pine bark, and activated carbon to effectively increase the porosity of the deodorizing filter material layer through the blocks such as wood chips and pine bark, thereby enhancing the contact area between the gas and the deodorizing filter material. A green plant layer 34 is provided on the top of the deodorizing filter material 33. The green plant layer 34 is preferably emergent aquatic plants such as canna indica and thalia dealbata, so that the carbon dioxide generated by the microbial degradation of the odor can be further adsorbed by the green plant layer 34 on the top of the deodorizing filter material 33, thereby achieving low carbon emissions. At the same time, the top green plant layer 34 forms an ecological interception layer, which can further prevent the odor from overflowing, forming a double guarantee.

[0093] A number of exhaust pipes 35 are provided. The number of exhaust pipes 35 are respectively vertically inserted into the deodorizing filter material 33, and wind energy fans 36 are assembled at the tops of the number of exhaust pipes 35. The purified gas is pumped out through the exhaust pipes 35 under the action of the wind energy fans, so that under the action of the external natural wind, the blades of the wind energy fans 36 automatically rotate, and the purified gas is pumped out through the exhaust pipes 35 under the action of the wind energy fans 36, improving the functional practicality.

[0094] As another preferred solution of this embodiment, please refer to Figure 1 and Figure 5 The deodorizing component 3 further includes a deodorizing overflow pipe 39. The outlet end of the deodorizing overflow pipe 39 is connected to the top of the first ABR reaction tank 11, and the inlet end of the deodorizing overflow pipe 39 corresponds to the deodorizing filter material 33. The deodorizing overflow pipe 39 is preferably a sieve pipe and / or a sieve barrel, so as to drain the surplus liquid medicine and rainwater in the deodorizing filter material 33 back to the reaction tank at the front end of the ABR reactor assembly 1 through the deodorizing overflow pipe 39, so that the surplus liquid medicine and rainwater can be processed and utilized synchronously with the incoming sewage by the ABR reactor assembly 1.

[0095] Please continue to refer to Figure 1 The top of the transfer tank 15 is covered with soil, and a maintenance well body assembly 4 is correspondingly provided, which is more convenient for the daily maintenance of each component and improves the functional practicality.

[0096] It should be noted that the above-mentioned ABR wastewater treatment device also includes an electrical control structure, which includes a power supply module and a control module connected by a circuit. The control module can be selected, but is not limited to, a single-chip microcontroller control board of model AT80C51 or a microcontroller of model STM32. The control output terminal of the control module is connected to the input terminal of a relay through a circuit. The output terminal of the relay is connected by a circuit to the return water pump 23, the sludge pump 25, the return regulating valve 26, the sludge regulating valve 27 and the control valve group 28 in the return and sludge discharge assembly 2, and the deodorization dosing module 37 in the deodorization assembly 3. The control input terminal of the control module is connected to the control panel through a circuit.

[0097] This invention also provides an ABR wastewater treatment method based on the above-mentioned ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions, specifically including the following steps:

[0098] First, wastewater enters the ABR reactor assembly 1 through the front-end lift pump and continues to flow into the bottom of the first ABR reaction chamber 11. Wastewater flowing through the first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13 and the fourth ABR reaction chamber 14 all pass through the water pipe assembly 18, with water entering from the bottom and exiting from the top. During the water exit process, the wastewater passes through the chamber packing 16 from bottom to top and reacts fully with the microorganisms attached to the chamber packing 16. At the same time, the chamber packing 16 prevents sludge from being lost into the next chamber.

[0099] During the wastewater recirculation and mixing process, the recirculation control valve 26 is opened while the sludge discharge control valve 27 is closed. The recirculation pump 23 pumps the treated water from the transfer tank 15 into the bottom of the first ABR reaction chamber 11 to the fourth ABR reaction chamber 14 through the first recirculation pipe to the fourth recirculation pipe 21a to 21d, respectively. The amount of water entering the first ABR reaction chamber 11 to the fourth ABR reaction chamber 14 is regulated by the first control valve to the fourth control valve 28a to 28d. At this time, the recirculation water, together with the current water, performs hydraulic mixing on each ABR reaction chamber, so that the sludge at the bottom is suspended in the reaction chamber, and the wastewater and sludge are in more complete contact, improving the tank capacity utilization rate. At the same time, the treated water from the transfer tank 15 is used to dilute the influent to the ABR reaction chamber, strengthening the system's shock resistance.

[0100] When the sludge discharge process is carried out, the control reflux control valve 26 is closed and the sludge discharge control valve 27 is opened. The sludge discharge pump 25 discharges the sludge from each ABR reaction chamber through the first reflux pipe to the fourth reflux pipe 21a to 21d. Since the sludge concentration in the front ABR reaction chamber should be higher than that in the back ABR reaction chamber, the opening degree of the first control valve to the fourth control valve 28a to 28d is adjusted to control the simultaneous and uniform sludge discharge from different ABR reaction chambers.

[0101] The spray pipe 38 on the top of the deodorizing filter material 33 is connected to the deodorizing dosing module 37. The deodorizing dosing module 37 is preferably filled with plant extract. The dosing agent is pumped into the spray pipe 38 through the dosing pump. The spray head 381 atomizes the agent and sprays it evenly onto the deodorizing filter material 33, keeping the deodorizing filter material 33 moist.

[0102] Odors inside the ABR reactor assembly enter the gas distribution module 31 through the odor inlet pipe 32, and then enter the deodorizing filter material 33 through the gas diffusion hole 311 at the top of the gas distribution module 31, where they are intercepted by the deodorizing filter material 33.

[0103] At this time, under the action of external natural wind, the blades of the wind turbine 36 rotate automatically, drawing out the odor from the air distribution module 31. The odor is adsorbed by the deodorizing filter material 33, which is wetted by the deodorizing agent. Subsequently, the microorganisms attached to the surface of the deodorizing filter material 33 degrade the odor. At the same time, the odor reacts chemically with the deodorizing agent, changing the chemical composition of the odor and thus eliminating the odor.

[0104] The carbon dioxide produced by the degradation of odor by microorganisms is adsorbed by the green plant layer 34 on top of the deodorizing filter material 33, achieving low carbon emissions. At the same time, the green plant layer 34 on top can form an ecological interception layer to prevent odor from overflowing, forming a double protection. The purified gas is extracted through the duct 35 under the action of the wind turbine 36.

[0105] The deodorization overflow pipe 39 located at the top of the first ABR reaction chamber 11 discharges the excess chemical solution and rainwater in the deodorization filter media 33 back to the ABR reaction chamber at the front end of the ABR reactor assembly 1, so that the excess chemical solution, rainwater and the incoming sewage are treated and utilized by the ABR reactor assembly 1 simultaneously.

[0106] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions, characterized in that, include: An ABR reactor assembly includes at least two ABR reaction chambers and at least one transfer tank that are connected in sequence. The reflux and sludge discharge assembly includes a reflux pipe assembly, one end of which is connected to at least two ABR reaction chambers, and the other end of which is connected to a reflux pump pipe and a sludge discharge pump pipe. The reflux pump pipe is connected to the transfer tank, and the reflux pump pipe is equipped with a reflux control valve, and the sludge discharge pump pipe is equipped with a sludge discharge control valve. The deodorization component includes deodorization filter media and a deodorization dosing module for adding chemicals to the deodorization filter media. The deodorization filter media is connected to the exhaust ends of at least two sets of the ABR reaction chambers. The ABR reactor assembly includes a first ABR reaction chamber, a second ABR reaction chamber, a third ABR reaction chamber, a fourth ABR reaction chamber, and a transfer tank, which are sequentially assembled and connected. The reflux tube assembly includes a first reflux tube, a second reflux tube, a third reflux tube, and a fourth reflux tube; The return pump pipe includes a return main pipe and a return water pump; The sludge discharge pump pipe includes a sludge discharge pipe and a sludge discharge pump; One end of the first reflux pipe, the second reflux pipe, the third reflux pipe, and the fourth reflux pipe extends to the bottom of the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber, respectively. The other ends of the first reflux pipe, the second reflux pipe, the third reflux pipe, and the fourth reflux pipe are connected to the main reflux pipe and then connected to the main reflux pipe and the sludge discharge pipe, respectively. The inlet end of the return main pipe extends to the bottom of the transfer tank, and the inlet end of the return main pipe is connected to a return water pump. A sludge pump is installed upstream of the sludge discharge path at the sludge discharge end of the sludge discharge pipe. The reflux control valve is assembled on the reflux main pipe; The sludge discharge control valve is installed on the sludge discharge pipe.

2. The ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions according to claim 1, characterized in that, The first ABR reaction chamber is connected to an inlet pipe for receiving wastewater, and the outlet end of the inlet pipe extends to the bottom of the first ABR reaction chamber. The second ABR reaction chamber is connected to the transfer tank via a series of water pipes. The water pipe assembly includes a first water pipe, a second water pipe, a third water pipe, and a fourth water pipe; The second ABR reaction chamber is connected to the first ABR reaction chamber by a first water pipe, the third ABR reaction chamber is connected to the second ABR reaction chamber by a second water pipe, the fourth ABR reaction chamber is connected to the third ABR reaction chamber by a third water pipe, and the transfer tank is connected to the fourth ABR reaction chamber by a fourth water pipe; the outlet ends of the first water pipe, the second water pipe, and the third water pipe extend to the bottom of the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber, respectively.

3. The ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions according to claim 2, characterized in that, The first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber are all equipped with suspended chamber packing material inside; The silo packing is configured as flexible silo packing, and the silo packing is coated with microorganisms that degrade pollutants; The inlet ends of the first water pipe, the second water pipe, the third water pipe, and the fourth water pipe are all located above the packing material of the silo.

4. The ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions according to claim 2, characterized in that, The reflux and sludge discharge assembly also includes a control valve group; The control valve group includes a first control valve, a second control valve, a third control valve, and a fourth control valve; The first control valve, the second control valve, the third control valve, and the fourth control valve are respectively installed in the first return pipe, the second return pipe, the third return pipe, and the fourth return pipe, and are used to adjust the flow rate of each return pipe by adjusting the opening degree of each control valve.

5. The ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions according to claim 2, characterized in that, The deodorization component also includes an air distribution module and an odor inlet pipe; The gas distribution module is provided in several groups. Each group of gas distribution modules is a tunnel-shaped shell located above each reaction chamber. Adjacent groups of gas distribution modules are connected by a socket, and the gas distribution modules connected by the socket are provided with several odor exhaust pipes through the end cap openings at both ends of the whole. Ventilation channels are provided on the upper part of the partition plates between the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber and the fourth ABR reaction chamber; The gas distribution module is connected to at least one set of ABR reaction chambers via several odor inlet pipes, and the gas in each ABR reaction chamber is transferred to the gas distribution module via the odor inlet pipes. The deodorizing filter material is positioned on the upper part of the air distribution module, and the air distribution module has a number of gas diffusion holes that are connected to the deodorizing filter material, corresponding to the semi-circular shell on its top side.

6. The ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions according to claim 5, characterized in that, The deodorization components also include a green plant layer, a duct, and a wind turbine. The green plant layer is disposed on top of the deodorizing filter material, and the green plant layer can adsorb the carbon dioxide formed by degradation and form an ecological interception layer. The air extraction pipes are provided in several sections, each of which is vertically inserted into the deodorizing filter material, and each of the air extraction pipes is equipped with a wind turbine at its top.

7. The ABR wastewater treatment device integrating biochemical deodorization and efficiency improvement functions according to claim 6, characterized in that, The deodorization assembly also includes a deodorization overflow pipe; The outlet end of the deodorizing overflow pipe is connected to the top of the first ABR reaction chamber, and the inlet end of the deodorizing overflow pipe is connected to the deodorizing filter material. The deodorizing overflow pipe is configured as a sieve pipe and / or a sieve bucket.

8. An ABR wastewater treatment method based on the ABR wastewater treatment device with integrated biochemical deodorization and efficiency improvement functions as described in claim 7, characterized in that, Specifically, the steps include the following: Wastewater enters the ABR reactor assembly through a front-end lift pump and continues to flow into the bottom of the first ABR reaction chamber. Wastewater flowing through the first, second, third, and fourth ABR reaction chambers all enters through the bottom-inlet and exits through the water pipe assembly. During the exiting process, the wastewater passes through the packing material from bottom to top and reacts fully with the microorganisms attached to the packing material. At the same time, the packing material prevents sludge from being lost into the next reaction chamber. When the wastewater recirculation and mixing process is carried out, the recirculation control valve is opened while the sludge discharge control valve is closed. The recirculation pump draws the treated water from the transfer tank into the bottom of the first ABR reaction chamber to the fourth ABR reaction chamber through the first and fourth recirculation pipes. The flow rate of water entering the first to fourth ABR reaction chambers is regulated by the first and fourth control valves. At this time, the recirculation water and the current flow water perform hydraulic mixing on each ABR reaction chamber, so that the sludge at the bottom is suspended in the reaction chamber, and the wastewater and sludge are in more complete contact, improving the tank capacity utilization rate. At the same time, the treated water from the transfer tank is used to dilute the water entering the ABR reaction chamber, strengthening the system's shock resistance. When the sludge discharge process is carried out, the control reflux control valve is closed and the sludge discharge control valve is opened at the same time. The sludge discharge pump discharges the sludge from each ABR reaction chamber through the first reflux pipe to the fourth reflux pipe. Since the sludge concentration in the front ABR reaction chamber should be higher than that in the back ABR reaction chamber, the opening of the first control valve to the fourth control valve is adjusted to control the sludge discharge from different ABR reaction chambers at the same time and evenly. Connect the spray pipe on top of the deodorizing filter material to the deodorizing dosing module. Select plant liquid as the agent inside the deodorizing dosing module. The agent is pumped into the spray pipe through the dosing pump. The spray head atomizes the agent and sprays it evenly onto the deodorizing filter material to keep it moist. Odors inside the ABR reactor components enter the gas distribution module through the odor inlet pipe, and then enter the deodorizing filter material through the gas diffusion holes at the top of the gas distribution module, where they are intercepted by the deodorizing filter material. At this time, under the action of external natural wind, the wind turbine blades rotate automatically, drawing out the odor from the air distribution module. The odor is adsorbed by the deodorizing filter material wetted with deodorizing agent. Subsequently, the microorganisms attached to the surface of the deodorizing filter material degrade the odor. At the same time, the odor reacts chemically with the deodorizing agent, changing the chemical composition of the odor and thus eliminating the odor. The carbon dioxide produced by the degradation of odor by microorganisms is adsorbed by the green plant layer on top of the deodorizing filter material, achieving low carbon emissions. At the same time, the green plant layer on top can form an ecological interception layer to prevent the odor from overflowing, forming a double protection. The purified gas is drawn out through the duct under the action of the wind turbine.

9. The ABR wastewater treatment method according to claim 8, characterized in that, It also includes the following steps: The deodorization overflow pipe located at the top of the first ABR reaction chamber discharges the excess chemical solution and rainwater in the deodorization filter media back to the ABR reaction chamber at the front end of the ABR reactor component, so that the excess chemical solution, rainwater and the incoming sewage are treated and utilized by the ABR reactor component at the same time.

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