A modular landscape-type biofilm reactor with AAO (autoclave-approved) technology

Abstract

This utility model relates to the field of wastewater treatment technology and discloses a modular landscape-type biofilm reactor (AAO) accompanied by aquatic plants. The reactor includes a reactor with multiple modular landscape mechanisms installed on the top inner wall. These modular landscape mechanisms are used for quick disassembly and installation of water-purifying plants. A biofilm reactor mechanism is installed on the bottom wall of the reactor for purifying urban wastewater. Each modular landscape mechanism includes multiple support plates, all fixedly connected to the top perimeter of the reactor's inner wall. In this utility model, a flower basket planted with greenery is placed on a floating island plate. Multiple floating island plates are then assembled, and the floating island plates are placed on support plates. The plate is rotated downwards to allow a limiting plate to pass through a locking hole. The limiting plate is then rotated to be perpendicular to the locking hole, thus fixing the floating island plate. This combines wastewater treatment with landscape construction, beautifying the environment through the planting of aquatic plants.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a modular landscape-type biofilm reactor with AAO (Automatic Aeration and Recycling). Background Technology

[0002] With the continuous improvement of urban living standards, the concentration of organic matter in urban domestic sewage is getting lower and lower, while the concentration of ammonia nitrogen and nutrients is getting higher and higher, resulting in a continuous decrease in the C / N ratio of sewage, which increases the difficulty of sewage treatment. The AAO process is an anaerobic-anoxic-aerobic biological treatment process. It is an activated sludge sewage treatment method that removes organic pollutants, nitrogen, phosphorus and other substances from water through various combinations of anaerobic, anoxic and aerobic zones and different sludge return methods. The biofilm reactor is the main application device for the AAO process to purify water quality.

[0003] A biofilm reactor is a core wastewater treatment device designed based on the principle of the "biofilm method." It mainly consists of a biofilm system, a hydraulic and water distribution system, and an aeration system. A biofilm composed of microorganisms and their metabolic products is cultivated on the surface of a fixed or suspended biofilm carrier within the device. The biofilm removes pollutants such as organic matter, nitrogen, and phosphorus from wastewater through adsorption and degradation, ultimately achieving water purification. A biofilm is a bacterial community that aggregates on a solid surface. The biofilm method cultivates microorganisms with different activities and electron acceptors on the carrier surface. The microorganisms multiply rapidly on the filter media, leading to an increase in biofilm thickness. Furthermore, the microorganisms accumulate through the entanglement of extracellular polymers, giving the carrier surface porosity and good adsorption capacity. After the biofilm is added to the reactor, the microorganisms remove or degrade substances in the water through metabolism, demonstrating good degradation and synthesis capabilities. Traditional AAO wastewater treatment processes face insufficient carbon sources for urban domestic sewage treatment, leading to increased operating costs and reagent consumption, thus increasing the operating expenses of wastewater treatment plants. Even if the process is improved to reduce wastewater treatment costs, the wastewater treatment process still produces significant odor and visual pollution due to multiple factors such as technical design, process characteristics, and operation and maintenance management, causing aversion among surrounding residents and hindering the progress of urban water environment management. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a modular landscape-type biofilm reactor with AAO (Automatic Aeration and Oxidation) technology, which aims to improve the problem that in the existing technology, sewage treatment generates significant odor and visual pollution due to multiple factors such as technical design, process characteristics and operation and maintenance management, causing rejection by surrounding residents and hindering the progress of urban water environment management.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a modular landscape-type biofilm reactor accompanying AAO, comprising a reactor, wherein multiple modular landscape mechanisms are installed on the top of the inner wall of the reactor, the multiple modular landscape mechanisms being used for quick disassembly and installation of water-purifying greenery, and a biofilm reaction mechanism is installed on the bottom wall of the reactor, the biofilm reaction mechanism being used for purifying urban sewage; the modular landscape mechanism includes multiple support plates, the multiple support plates being fixedly connected to the top of the reactor around the perimeter, fixing plates being fixedly connected to the left and right sides of the front end of the top wall of the support plate, and pressure plates being rotatably connected to adjacent sides of the fixing plates, with a locking hole in the middle of the pressure plate, a limiting plate being rotatably connected to the front side of the top wall of the support plate, the bottom of the outer wall of the limiting plate being rotatably connected to the inner wall of the locking hole, and a fixing component being installed at the bottom of the pressure plate.

[0006] As a further description of the above technical solution: The fixing component includes a floating island plate, which is slidably connected to the bottom of the pressure plate. The bottom wall of the floating island plate is slidably connected to the top wall of the support plate. Sliding grooves are provided on both the left and right sides of the floating island plate, and sliders are fixedly connected to both the front and rear sides of the floating island plate.

[0007] As a further description of the above technical solution: The reactor includes multiple guide plates, all of which are fixedly connected to the bottom wall of the reactor. A partition is fixedly connected to the lower part of the inner wall of the reactor, and packing is installed on the top wall of the partition. A lift pump is provided on the right side of the outer wall of the reactor. One end of the lift pump is connected to a water supply pipe, and the other end of the lift pump is connected to a water delivery pipe. The middle part of the water supply pipe is connected to the outer wall of the reactor, and the end of the water delivery pipe is connected to a sewage tank.

[0008] As a further description of the above technical solution: A water outlet pipe is connected to the bottom left side of the outer wall of the reactor, and a sealing ring is fixedly connected to the right end of the outer wall of the water outlet pipe.

[0009] As a further description of the above technical solution: A first rubber plate is fixedly connected to the top of the support plate, and a second rubber plate is fixedly connected to the bottom of the pressure plate.

[0010] As a further description of the above technical solution: The floating island plate is equipped with a flower basket inside, and the bottom of the flower basket has multiple water inlets.

[0011] As a further description of the above technical solution: A first guide plate is fixedly connected to the left side of the middle part of the inner wall of the reactor, and two second guide plates are fixedly connected to the right side of the middle part of the inner wall of the reactor.

[0012] As a further description of the above technical solution: An aerator is installed on the front side of the outer wall of the reactor. The output end of the aerator is connected to an air supply pipe. The outer wall of the air supply pipe is fixedly connected to the bottom of the outer wall of the reactor, and the top of the outer wall of the air supply pipe is fixedly connected to the inner wall of the second guide plate.

[0013] This utility model has the following beneficial effects: 1. In this utility model, a flower basket planted with green plants is placed on a floating island board, then multiple floating island boards are spliced ​​together, and then the floating island board is placed on a support board. The board is rotated downwards to allow the limiting plate to pass through the lock hole, and then the limiting plate is rotated to make it perpendicular to the direction of the lock hole, thereby fixing the floating island board. This combines sewage treatment with landscape construction, beautifies the environment by planting aquatic plants, and promotes the sustainable development of ecological and environmental protection technologies for sewage treatment.

[0014] 2. In this utility model, volcanic rock, zeolite and modified PE packing are poured onto a partition plate, and a booster pump is started to pump sewage from the sewage tank to the reactor. Microorganisms in the water form a biofilm on the packing, adsorbing and degrading pollutants in the sewage to purify the water quality. An aerator increases oxygen in the water, which is conducive to the degradation of impurities by microorganisms. Combined with the green plants in the flower basket, the water purification efficiency is greatly improved. Then, the purified water is discharged from the reactor through the outlet pipe. Attached Figure Description

[0015] Figure 1 This is a perspective view of a modular landscape-type biofilm reactor with AAO (Automatic Asynchronous Activated Biofilm Reactor) proposed in this utility model. Figure 2 This is a front view of a modular landscape-type biofilm reactor accompanying an AAO (Automatic Atomic Oxygenation) device proposed in this utility model. Figure 3 This is a schematic diagram of the modular landscape structure of a modular landscape-type biofilm reactor accompanying an AAO (Automatic Asynchronous Activated Biofilm Reactor) proposed in this utility model. Figure 4 This is a schematic diagram of the biofilm reaction mechanism of a modular landscape-type biofilm reaction device accompanying an AAO (Automatic Atomic Oxygenation) proposed in this utility model. Figure 5 This is a partial structural schematic diagram of a modular landscape-type biofilm reactor with AAO (Automatic Asynchronous Activated Biofilm Reactor) proposed in this utility model. Figure 6 This is a partial structural cross-sectional view of a modular landscape-type biofilm reactor accompanying an AAO (Automatic Atomic Oxygenation) device proposed in this utility model.

[0016] Legend: 1. Reactor; 2. Modular landscape structure; 201. Support plate; 202. Fixing plate; 203. Pressure plate; 204. Lock hole; 205. Limiting plate; 206. Fixing component; 2061. Floating island plate; 2062. Slide chute; 2063. Sliding block; 3. Biofilm reaction mechanism; 301. Guide plate; 302. Partition plate; 303. Packing material; 304. Lifting pump; 305. Water supply pipe; 306. Water delivery pipe; 307. Wastewater tank; 4. Water outlet pipe; 5. Sealing ring; 6. First rubber plate; 7. Second rubber plate; 8. Flower basket; 9. Water inlet; 10. First guide plate; 11. Second guide plate; 12. Aerator; 13. Air supply pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 3 and Figure 5This utility model provides an embodiment of a modular landscape-type biofilm reactor accompanying an AAO (Automatic Aqueous Activated Water) system, comprising a reactor 1. Multiple modular landscape mechanisms 2 are installed on the top inner wall of the reactor 1 for quick disassembly and installation of water-purifying greenery. A biofilm reaction mechanism 3 is installed on the bottom wall of the reactor 1 for purifying urban wastewater. Each modular landscape mechanism 2 includes multiple support plates 201, all fixedly connected to the top perimeter of the reactor 1. Fixing plates 202 are fixedly connected to the left and right sides of the top front end of each support plate 201. A pressure plate 203 is rotatably connected to each adjacent side of the fixing plate 202. A locking hole 204 is provided in the center of the pressure plate 203. A limiting plate 205 is rotatably connected to the front side of the top wall of the support plate 201. The bottom of the outer wall of the limiting plate 205 is connected to the locking hole. The inner wall of 204 is rotatably connected, and a fixing component 206 is installed at the bottom of the pressure plate 203. The fixing component 206 includes a floating island plate 2061, which is slidably connected to the bottom of the pressure plate 203. The bottom wall of the floating island plate 2061 is slidably connected to the top wall of the support plate 201. Slide grooves 2062 are provided on both the left and right sides of the floating island plate 2061. Slider blocks 2063 are fixedly connected to the front and rear sides of the floating island plate 2061. The sliders 2063 can slide in the slide grooves 2062. A first rubber plate 6 is fixedly connected to the top of the support plate 201, and a second rubber plate 7 is fixedly connected to the bottom of the pressure plate 203 to avoid direct hard contact between the support plate 201 and the pressure plate 203. A flower basket 8 is installed inside the floating island plate 2061 for planting green plants. Multiple water inlets 9 are provided at the bottom of the flower basket 8 to facilitate the downward growth of plant roots to purify the water. Specifically, a flower basket 8 planted with aquatic plants is placed on the floating island plate 2061. The slider 2063 on one side of the floating island plate 2061 matches the groove 2062 on the side of the adjacent floating island plate 2061. By embedding the slider 2063 into the groove 2062, multiple floating island plates 2061 can be spliced ​​together. This splicing method allows for flexible combination and installation according to the actual amount of water to be treated and the size of the site. At the same time, the individual floating island plates 2061 after disassembly are small in size, which is convenient for transportation, installation and later maintenance. After splicing, the floating island plate 2061 is placed on the support plate 201, and the limiting plate 205 is rotated downwards to pass through the locking hole 204 on the edge of the floating island plate 2061, so that the pressure plate 203 and the floating island plate 2061 are engaged. The surface contact of 061, the first rubber plate 6 at the bottom of the pressure plate 203 and the second rubber plate 7 at the top of the support plate 201 are elastic, which can prevent the pressure plate 203 and the support plate 201 from directly and rigidly contacting the floating island plate 2061, and prevent the floating island plate 2061 from being crushed. When the pressure plate 203 applies a certain pressure to the floating island plate 2061, the limiting plate 205 is rotated so that its direction is perpendicular to the direction of the lock hole 204, thereby firmly fixing the floating island plate 2061 to the support plate 201, preventing the floating island plate 2061 from being blown over in windy weather. This device combines sewage treatment with landscape construction. By planting aquatic plants in the flower basket 8, it can not only use plants to purify water bodies, but also beautify the surrounding environment and improve the aquatic ecological landscape.

[0019] Reference Figure 1 , Figure 4 and Figure 6 The reactor 1 includes multiple guide plates 301 for supporting the partition plate 302. The multiple guide plates 301 are fixedly connected to the bottom wall of the reactor 1. The partition plate 302 is fixedly connected to the lower part of the inner wall of the reactor 1. The top wall of the partition plate 302 is equipped with packing 303. A lift pump 304 is set on the right side of the outer wall of the reactor 1. The lift pump 304 is a PMY25A8 model. The rotor driven by the motor squeezes the elastic hose to form a negative pressure in the hose to draw in fluid. Then the squeezed hose recovers its deformation and pushes the fluid to the outlet to realize the continuous transportation of sewage. One end of the lift pump 304 is connected to a water supply pipe 305, and the other end of the lift pump 304 is connected to a water delivery pipe 306. The middle part of the water supply pipe 305 is connected to the outer wall of the reactor 1, and the end of the water delivery pipe 306 is connected to a sewage tank 307. A first guide plate 10 is fixedly connected to the left side of the middle part of the inner wall of the reactor 1, and two second guide plates 11 are fixedly connected to the right side of the middle part of the inner wall of the reactor 1 to guide the direction of water flow. Specifically, the packing material 303, composed of volcanic rock, zeolite, and modified PE material, is first evenly poured onto the partition plate 302 inside the reactor 1 to ensure that the packing material 303 is evenly distributed on the partition plate 302. Then, the lift pump 304 is started, and the lift pump 304 pumps the sewage to be treated stored in the sewage tank 307 into the reactor 1 through the pipeline. After the sewage enters the reactor 1, it comes into contact with the packing material 303 on the partition plate 302. Microorganisms in the water will attach to the surface of the packing material 303 and form a biofilm. These biofilms can trap pollutants in the sewage through adsorption and degrade and remove pollutants in the sewage through the metabolism of microorganisms, thereby achieving the purpose of purifying water quality. The first guide plate 10 and the second guide plate 11 installed inside the reactor 1 can change the flow path of the sewage in the reactor 1 and control the flow direction of the water in the reactor 1, so that the sewage can fully contact the biofilm on the surface of the packing material 303 and improve the purification efficiency of pollutants.

[0020] Reference Figure 1 , Figure 2 and Figure 6 The bottom left side of the outer wall of reactor 1 is connected to a water outlet pipe 4 for discharging purified water. A sealing ring 5 is fixedly connected to the right end of the outer wall of water outlet pipe 4. An aerator 12 is installed on the front side of the outer wall of reactor 1. The aerator 12 is a GM671000 model. Compressed air enters its elastic membrane tube, causing the micropores on the membrane tube to open and release micro bubbles. The bubbles fully contact the water to complete the oxygen transfer and are used to transport oxygen. The output end of aerator 12 is connected to an air supply pipe 13. The outer wall of air supply pipe 13 is fixedly connected to the bottom of the outer wall of reactor 1, and the top of the outer wall of air supply pipe 13 is fixedly connected to the inner wall of the second guide plate 11. Specifically, after the aerator 12 is started, it can inject air into the water in the reactor 1, increase the dissolved oxygen content in the water, provide sufficient oxygen for the microorganisms in the water, which is conducive to the aerobic degradation of microorganisms and more efficiently decomposes organic impurities and harmful substances in the sewage. In conjunction with the green plants planted in the flower basket 8 on the floating island plate 2061, the water purification efficiency is greatly improved. After the sewage is fully purified in the reactor 1, the purified water is discharged from the reactor 1 through the outlet pipe 4 connected to one side of the reactor 1.

[0021] Working principle: Place the flower basket 8 containing green plants on the floating island plate 2061. One side of the slider 2063 of the floating island plate 2061 is connected to one side of the slide groove 2062 of the adjacent floating island plate 2061. Multiple floating island plates 2061 are spliced ​​together, which facilitates flexible combination and installation according to the water volume and site requirements, and facilitates transportation, installation and maintenance. Then, the floating island plate 2061 is placed on the support plate 201 and rotated downwards to make the limiting plate 205 pass through the locking hole 204, so that the pressure plate 203 contacts the floating island plate 2061. The first rubber plate 6 at the bottom of the pressure plate 203 and the second rubber plate 7 at the top of the support plate 201 can prevent them from contacting the floating island plate 2061 and cracking the floating island plate 2061. When the pressure plate 203 applies a certain pressure to the floating island plate 2061, the limiting plate 205 is rotated so that its direction is perpendicular to the direction of the lock hole 204, thereby fixing the floating island plate 2061 and preventing the floating island plate 2061 from being blown over by strong winds. The sewage treatment is combined with landscape construction, and the environment is beautified and the aquatic ecological landscape is improved by planting aquatic plants. Volcanic rock, zeolite, and modified PE packing 303 are poured onto the partition plate 302. The booster pump 304 is started to pump the sewage from the sewage tank 307 into the reactor 1. Microorganisms in the water form a biofilm on the attached packing 303, thereby adsorbing, degrading, and removing pollutants from the sewage and purifying the water quality. The first guide plate 10 and the second guide plate 11 control the flow direction of the water in the reactor 1, so that the sewage can fully contact the biofilm. The aerator 12 increases the oxygen in the water, which is conducive to the degradation of impurities by microorganisms. Combined with the green plants in the flower basket 8, the water purification efficiency is greatly improved. Then, the purified water is discharged from the reactor 1 through the outlet pipe 4.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular landscape-type biofilm reactor with AAO (Autonomous Atomic Oxidation) technology, comprising a reactor (1), characterized in that: The reactor (1) has multiple modular landscape mechanisms (2) installed on the top of its inner wall. These modular landscape mechanisms (2) are used for quick disassembly and installation of water-purifying green plants. The reactor (1) has a biofilm reaction mechanism (3) installed on its bottom wall. These biofilm reaction mechanisms (3) are used to purify urban sewage. The modular landscape mechanism (2) includes multiple support plates (201), which are fixedly connected to the top of the inner wall of the reactor (1). The left and right sides of the front end of the top wall of the support plate (201) are fixedly connected to the fixing plate (202). The adjacent side of the fixing plate (202) is rotatably connected to the pressure plate (203). The middle of the pressure plate (203) is provided with a lock hole (204). The front side of the top wall of the support plate (201) is rotatably connected to the limiting plate (205). The bottom of the outer wall of the limiting plate (205) is rotatably connected to the inner wall of the lock hole (204). The bottom of the pressure plate (203) is equipped with a fixing component (206).

2. The modular landscape-type biofilm reactor with AAO (Automatic Asynchronous Activated Biofilm) according to claim 1, characterized in that: The fixing component (206) includes a floating island plate (2061), which is slidably connected to the bottom of the pressure plate (203). The bottom wall of the floating island plate (2061) is slidably connected to the top wall of the support plate (201). Sliding grooves (2062) are provided on both the left and right sides of the floating island plate (2061), and sliders (2063) are fixedly connected to both the front and rear sides of the floating island plate (2061).

3. The modular landscape-type biofilm reactor accompanying AAO according to claim 1, characterized in that: The reactor (1) includes multiple guide plates (301), all of which are fixedly connected to the bottom wall of the reactor (1). A partition (302) is fixedly connected to the lower part of the inner wall of the reactor (1). Packing material (303) is installed on the top wall of the partition (302). A lift pump (304) is provided on the right side of the outer wall of the reactor (1). One end of the lift pump (304) is connected to a water supply pipe (305), and the other end of the lift pump (304) is connected to a water delivery pipe (306). The middle part of the water supply pipe (305) is connected to the outer wall of the reactor (1), and the end of the water delivery pipe (306) is connected to a sewage tank (307).

4. The modular landscape-type biofilm reactor accompanying AAO according to claim 1, characterized in that: The reactor (1) has an outlet pipe (4) connected to the bottom left side of its outer wall, and a sealing ring (5) is fixedly connected to the right end of the outlet pipe (4).

5. A modular landscape-type biofilm reactor accompanying AAO according to claim 1, characterized in that: The top of the support plate (201) is fixedly connected to a first rubber plate (6), and the bottom of the pressure plate (203) is fixedly connected to a second rubber plate (7).

6. A modular landscape-type biofilm reactor accompanying AAO according to claim 2, characterized in that: The floating island plate (2061) is equipped with a flower basket (8), and the bottom of the flower basket (8) has multiple water inlets (9).

7. A modular landscape-type biofilm reactor accompanying AAO according to claim 1, characterized in that: A first guide plate (10) is fixedly connected to the left side of the middle part of the inner wall of the reactor (1), and two second guide plates (11) are fixedly connected to the right side of the middle part of the inner wall of the reactor (1).

8. A modular landscape-type biofilm reactor accompanying AAO according to claim 1, characterized in that: An aerator (12) is installed on the front side of the outer wall of the reactor (1). The output end of the aerator (12) is connected to an air supply pipe (13). The outer wall of the air supply pipe (13) is fixedly connected to the bottom of the outer wall of the reactor (1). The top of the outer wall of the air supply pipe (13) is fixedly connected to the inner wall of the second guide plate (11).

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