Efficient biological deodorization filter tank and treatment method

Abstract

The invention relates to the field of waste gas treatment, and discloses an efficient biological deodorization system and a treatment method.The efficient biological deodorization system comprises a biological filter, and the biological filter is connected with anti-overpressure equipment, water supplementing equipment, water return and drainage equipment and gas supply equipment; the anti-overpressure equipment is provided with an electric contact pressure gauge, a pressure sensor and a thin cover plate, so that the pressure condition of the biological filter can be monitored in real time; when the internal pressure is abnormal, the thin cover plate cracks along the line marks, so that structural collapse of the biological filter caused by abnormal pressure is effectively avoided; the water returning and draining equipment collects and purifies rainwater and wastewater through a water collecting part and a backflow pipe, the rainwater and the wastewater are filtered and then circulated to a water circulating pipe to be reused, water resources are saved, and the green and environment-friendly concept is embodied; the water supplementing equipment uniformly sprays water to the biological filler area through the inclined water pipe, the appropriate living environment of microorganisms is guaranteed, whether the inclined water pipe is blocked or not can be monitored in time by controlling a water pressure sensor in a water valve, and therefore the workload of manual troubleshooting is reduced.

Description

Technical Field

[0001] The present invention relates to the field of waste gas treatment, and in particular to a high-efficiency biological deodorization system and a treatment method. Background Art

[0002] my country has a total of more than 20 million tons of volatile organic compounds emitted each year, which can easily cause serious pollution to the atmosphere. The domestic environmental protection industry has been developing for many years, but the overall progress is slow. One of the main obstacles is that the recycled solvents are mostly accompanied by deterioration such as acidification, coloration, odor, and high water content. The existing organic solvent recovery and treatment methods and devices have very low treatment yields and no economic benefits.

[0003] At present, the main methods for treating odor and industrial organic waste gas are physical, chemical and biological. Physical and chemical methods such as absorption and adsorption have significant treatment effects, short reaction time and large treatment capacity, but there are problems such as numerous equipment, complex processes, secondary pollution and high energy consumption. Biological methods use microorganisms to decompose organic substances such as odor in waste gas. The equipment required is simple, the energy consumption is low, and the management and maintenance are convenient. It has a good development prospect.

[0004] Among them, biological deodorization technology is widely used in the field of wastewater and waste gas deodorization due to its advantages of low operating cost, simple maintenance and environmental friendliness. Biological deodorization technology includes three methods: biological filter, biological bottom filter and biological washing. Soil biological filter uses soil as a biological carrier to cultivate microorganisms and decompose pollutants into harmless substances through the metabolic activities of microorganisms.

[0005] The Chinese patent with the authorization announcement number CN111729507B discloses a biological deodorization filter tank, including a tank body, a supporting layer is provided at the bottom of the tank body, a soil filling layer is provided at the top of the tank body, an air distribution duct is provided at the bottom of the tank body, the air distribution duct is connected to the exhaust gas source through a ventilation duct equipped with a pump body, turf is planted on the top of the soil filling layer, a spray irrigation system is provided on the top of the tank body, and a drainage port connected to the supporting layer is provided on the side of the tank body, and the drainage port is located above the air distribution duct. After uniform air distribution, the exhaust gas first enters the supporting layer to filter out some soluble impurities and particulate matter, and then continues to rise into the soil filling layer to be degraded by microorganisms to finally achieve the deodorization of the exhaust gas, and finally discharged from the top of the tank body, thereby realizing a stable and efficient exhaust gas treatment system. Moreover, the biological deodorization filter tank has low manufacturing cost and simple maintenance. However, this patent has the following problems: 1. The operating environment of the biological filter is often more complicated, and the nozzle that sprays water on the biological filler may be corroded or damaged by factors such as chemicals and sewage impurities, or may be blocked due to the accumulation of sediments or biofilms, thereby causing the system performance to decline or shut down, and stopping the continuous operation of the biological filter; 2. Since the exhaust gas enters the biological filter through a pipeline for deodorization, when the exhaust gas is treated, moisture and water vapor often flow into the filter with the exhaust gas. When passing through the pipeline, part of the water will condense into liquid, and the accumulated water may cause pipeline corrosion and other phenomena, thereby affecting the normal operation of the filter. Summary of the invention

[0006] The present invention is to overcome the technical problems existing in the above-mentioned prior art and is a highly efficient biological deodorization system;

[0007] Another object of the present invention is to provide a treatment method for an efficient biological deodorization system.

[0008] A high-efficiency biological deodorization system includes a biological filter tank, wherein the biological filter tank is connected to an overpressure prevention device, a water replenishment device, a water return and drainage device, and an air supply device;

[0009] The overpressure prevention device comprises an electric contact pressure gauge, a pressure sensor and a thin cover plate; the electric contact pressure gauge and the pressure sensor are arranged on the top of the biofilter; the top of the biofilter is provided with a plurality of through holes, and the through holes are detachably provided with a thin cover plate;

[0010] The water replenishment equipment includes a ring water pipe, a control water valve and an inclined water pipe; the ring water pipe is arranged on the biological filter; one end of the inclined water pipe is connected to the ring water pipe through the control water valve, and the other end of the inclined water pipe is arranged in the biological filter.

[0011] Preferably, the inclined water pipe also passes through the biofilter and is used to spray water onto the filler in the biofilter.

[0012] Furthermore, the water return drainage equipment includes a water collecting component, a filtering component and a backflow pipe; the water collecting component is arranged on the top of the biological filter tank and is connected to the circulating water pipe through the backflow pipe; the filtering component is arranged in the backflow pipe to filter the impurities in the backflow pipe into the waste pipe and discharge them.

[0013] Furthermore, the filter component is a filter plate, the filter plate is obliquely arranged in the backflow pipe, and the inclined opening of the filter plate is arranged at the top of the waste pipe.

[0014] Furthermore, a water spraying hole is provided on the biological filter tank, a quick interface is provided at the water spraying hole, and a backflow sleeve for waterproofing is provided on the backflow pipe.

[0015] Furthermore, the air supply equipment includes an air supply pipe, a filter box and an air supply fan. The filter box is connected to the biological filter tank through the air supply pipe, and the filter box is arranged in the air supply pipe.

[0016] Furthermore, a drainage groove is provided in the air supply pipe, and the drainage bucket is detachably connected to the bottom of the drainage groove through a connecting piece, and the drainage bucket is connected to a drainage pipe.

[0017] Preferably, the connecting piece in the middle of the bottom of the drainage bucket and the drainage trough is "T"-shaped, the bottom of the "T"-shaped connecting piece is connected to the drainage bucket and the drainage pipe, and the top of the "T"-shaped connecting piece is clamped on the drainage trough of the air supply pipe.

[0018] Preferably, the water collecting component is an angle steel, and the angle steel is arranged on the top edge of the biological filter tank.

[0019] Furthermore, the thin cover plate is provided with a plurality of fixing grooves for connection and fixing, and the thin cover plate is also provided with a plurality of line marks.

[0020] Preferably, the cracks are distributed in a star shape, so as to facilitate the thin cover plate to be split from the middle.

[0021] Furthermore, a water pressure sensor is also provided in the control water valve, and the water pressure sensor, the electric contact pressure gauge and the pressure sensor are also electrically connected to the control system.

[0022] Furthermore, a plurality of water pipes for spraying water are provided on the top of the biofilter, wherein the water pipes are composed of a main water pipe and branch water pipes, and the main water pipe is connected to a plurality of branch water pipes.

[0023] A treatment method for a high-efficiency biological deodorization system, the treatment method for a high-efficiency biological deodorization system comprising the following:

[0024] S1: Malodorous gas is sucked in by the air supply fan in the air supply equipment, and then transported to the filter box through the air supply pipe. The filter box is equipped with a filtering device to preliminarily remove larger particle impurities and some harmful components;

[0025] S2: The pre-treated gas enters the biofilter, and the gas is transported to the inside of the filter through evenly distributed air supply pipes; the biological filler area of ​​the biofilter contains specific microbial communities, which can decompose the odorous components in the gas and achieve gas purification;

[0026] S3: When it is necessary to replenish water to the biological filler area of ​​the biological filter, open the control water valve to allow the water in the ring water pipe to be evenly sprayed into the biological filler area of ​​the biological filter through the inclined water pipe;

[0027] S4: When it rains, the drainage equipment can be turned on for recycling. The water collection component collects rainwater from the top of the biofilter tank, and then sends it to the filter component for filtration through the backflow pipe. The cleaned impurities are discharged into the waste pipe, and the purified wastewater is circulated to the circulating water pipe for reuse;

[0028] S5: When the internal pressure of the biofilter reaches a certain threshold, the thin cover will crack along the line marks, thereby preventing the biofilter from collapsing due to abnormal pressure;

[0029] S6: When the humidity of the malodorous gas is too high, the moisture will flow downward along the pipe wall of the air supply pipe, eventually gathering in the drain bucket, and then falling into the drain pipe to be guided to the external wastewater treatment system or water storage container.

[0030] Preferably, when the abnormal internal pressure of the biological filter of S5 causes the thin cover plate to crack, the internally connected electric contact pressure gauge and pressure sensor will sense a sharp drop or instability in the filter pressure, and the air pressure change can be accurately monitored through linkage with the control system, and abnormal data can be fed back to the control system in a timely manner; when the inclined water pipe is blocked, the water pressure sensor will sense a drop in the filter pressure, and the water pressure change can be accurately monitored through linkage with the control system, and abnormal data can be fed back to the control system in a timely manner.

[0031] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0032] ① The overpressure prevention equipment can monitor the pressure condition of the biofilter in real time by setting up an electric contact pressure gauge, a pressure sensor and a thin cover plate; when the internal pressure is abnormal, the thin cover plate will crack along the line, effectively avoiding the structural collapse of the biofilter due to abnormal pressure.

[0033] ②The water pressure sensor, electric contact pressure gauge and pressure sensor are all electrically connected to the control system, which can realize real-time monitoring of pressure and water pressure changes, timely feedback of abnormal data, and improve the intelligence level of system operation.

[0034] ③ The drainage equipment collects and purifies rainwater and wastewater through water collection components and backflow pipes, and circulates them to the circulating water pipe for reuse after filtering, saving water resources and embodying the concept of green environmental protection.

[0035] ④ Installing filter boxes and filtering devices in the gas delivery equipment can effectively remove larger particle impurities and some harmful components, achieve preliminary purification of the gas, and provide better conditions for subsequent biological decomposition.

[0036] ⑤Use the inclined water pipe to spray water evenly on the biological filler area to ensure a suitable living environment for microorganisms. The water pressure sensor in the water control valve can timely monitor whether the inclined water pipe is blocked, and quickly feedback abnormalities through the linkage control system, thereby reducing the workload of manual troubleshooting.

[0037] ⑥ Regular drainage through the drain bucket and drain pipe can effectively prevent the air supply duct from corrosion or blockage due to excessive moisture, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 This is a schematic diagram of the internal structure of a high-efficiency biological deodorization system;

[0040] Figure 2 This is a schematic diagram of the external structure of the high-efficiency biological deodorization system;

[0041] Figure 3 This is a schematic diagram of the structure of the water replenishment equipment and the biological filter tank;

[0042] Figure 4 This is a top view of the biofilter;

[0043] Figure 5 It is an enlarged schematic diagram of part A;

[0044] Figure 6 This is a schematic diagram of the coordination between the air supply pipe and the drainage bucket;

[0045] Figure 7 This is a schematic diagram of the cooperation between the drainage bucket and the drainage pipe;

[0046] Figure 8 Schematic diagram of the structure of the thin cover.

[0047] in,

[0048] 1. Biofilter; 2. Electric contact pressure gauge; 3. Pressure sensor; 4. Thin cover; 5. Circular water pipe; 6. Control water valve; 7. Inclined water pipe; 8. Water collecting component; 9. Filter component; 10. Backflow pipe; 11. Waste pipe; 12. Backflow sleeve; 13. Air supply pipe; 14. Filter box; 15. Air supply fan; 16. Drain bucket; 17. Drain pipe; 18. Quick connector. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0051] Example 1

[0052] like Figure 1-8 As shown, this embodiment discloses a high-efficiency biological deodorization system, including a biological filter 1, which is connected to an overpressure prevention device, a water replenishment device, a water return and drainage device, and an air supply device;

[0053] The overpressure prevention device includes an electric contact pressure gauge 2, a pressure sensor 3 and a thin cover plate 4; the electric contact pressure gauge 2 and the pressure sensor 3 are arranged on the top of the biofilter 1; a plurality of through holes are arranged on the top of the biofilter 1, and a thin cover plate 4 is detachably arranged on the through holes;

[0054] The water replenishment equipment includes a ring water pipe 5, a control water valve 6 and an inclined water pipe 7; the ring water pipe 5 is arranged on the biological filter 1; one end of the inclined water pipe 7 is connected to the ring water pipe 5 through the control water valve 6, and the other end of the inclined water pipe 7 is arranged in the biological filter 1.

[0055] During operation, the malodorous gas is sucked in through the air supply fan 15 in the air supply device, and the gas enters the filter box 14 along the air supply pipe 13. The filter box 14 is provided with a filtering device; the function of this device is to remove larger particle impurities and some harmful components in the gas, and perform preliminary purification to ensure that the gas entering the biofilter 1 does not contain larger particle pollutants;

[0056] The gas after preliminary filtration is transported to the biofilter 1 through the evenly distributed air supply pipes 13; the specific microbial community of the biofilter 1 can decompose the malodorous components in the gas and carry out a deeper biological purification process; the microbial community in the biological filler area effectively degrades the malodorous substances through metabolism, thereby achieving the purpose of purifying the gas;

[0057] In order to ensure that the microbial community in the biofilter 1 can grow and metabolize normally, it is necessary to replenish water to the biological filler of the biofilter 1 when necessary; at this time, the control water valve 6 is opened, and the water in the annular water pipe 5 is evenly sprayed to the filler area of ​​the biofilter 1 through the inclined water pipe 7; the inclined water pipe 7 can not only replenish water for the biofilter 1, but also spray water on the filler appropriately to maintain appropriate humidity and ensure the activity of the microorganisms;

[0058] In rainy days, the system automatically starts the drainage equipment to collect rainwater from the biological filter 1; the collected rainwater is sent to the filter component 9 through the backflow pipe 10 for filtration, and the cleaned impurities are discharged into the waste pipe 11; the purified wastewater is circulated back to the loop water pipe 5 for reuse, ensuring that the water resources in the system are effectively utilized and avoiding waste;

[0059] When the pressure of the biofilter 1 is abnormal (such as the gas pressure is too high or too low), the thin cover plate 4 will split along the set line mark to prevent the biofilter 1 from collapsing due to excessive pressure; in addition, the electric contact pressure gauge 2 and the pressure sensor 3 monitor the pressure change of the biofilter 1 in real time and feedback the abnormal data through the control system; if the pressure is abnormal, the control system will automatically adjust the operation to ensure the safe operation of the system;

[0060] When the humidity of the malodorous gas is too high, the moisture flows downward along the pipe wall of the air supply pipe 13 and finally gathers in the drainage bucket 16; the drainage bucket 16 guides the accumulated water to the external wastewater treatment system or water storage container through the drainage pipe 17 to prevent excessive moisture from affecting equipment operation or polluting the environment.

[0061] As a specific implementation, the water return and drainage equipment includes a water collecting component 8, a filtering component 9 and a backflow pipe 10; the water collecting component 8 is arranged on the top of the biological filter 1 and is connected to the circulating water pipe 5 through the backflow pipe 10; the filtering component 9 is arranged in the backflow pipe 10, and is used to filter the impurities in the backflow pipe 10 into the waste pipe 11 and discharge them;

[0062] The filter component 9 is a filter plate, which is obliquely arranged in the backflow pipe 10 , and the inclined opening of the filter plate is arranged at the top of the waste pipe 11 .

[0063] Specifically, on rainy days or when water accumulates on the top of the biofilter 1, the water collecting component 8 starts to function; the water collecting component 8 is located on the top of the biofilter 1 and can collect rainwater or other excess water accumulated on the top of the biofilter 1; the collected water is guided to the water circulation pipe 5 in the system through the backflow pipe 10, and the backflow pipe 10 serves as the main channel for water recovery, and guides the water to the water circulation pipe 5 for water replenishment treatment;

[0064] The filter component 9 in the backflow pipe 10 adopts an inclined filter plate. Through the inclined design, the water can flow through the filter plate better, thereby improving the filtering effect of the water and preventing impurities from entering the circulating water pipe or other equipment again. Rainwater recovery and purified water are recycled, which meets the requirements of environmental protection and energy saving and has strong sustainability.

[0065] The filter plate disposed in the backflow pipe 10 can efficiently remove impurities and solid particles in the backflow pipe 10; the inclined filter component 9 design improves the water flow and filtering effect, so that the water quality is significantly improved and impurities are prevented from entering other system components;

[0066] The system effectively filters and purifies the collected water for reuse; all impurities are effectively removed through the discharge of the waste pipe 11, and the clean water is reused through the loop water pipe to ensure that the water quality in the biofilter is maintained at an appropriate level to avoid pollution and water quality deterioration.

[0067] As a specific implementation, a water spraying hole is provided on the biological filter 1, a quick interface 18 is provided at the water spraying hole, and a backflow sleeve 12 for waterproofing is provided on the backflow pipe 10.

[0068] Specifically, in order to ensure that the microbial community in the biofilter 1 can work in the best environment, the system is equipped with a water replenishment device; when the water in the biofilter 1 is insufficient, the water valve 6 is controlled to open the circular water pipe 5, so that the water flows through the inclined water pipe 7 and is evenly sprayed to the biological filler area of ​​the biofilter 1. The design of the inclined water pipe 7 enables the water to be accurately sprayed to the filler surface to ensure the maintenance of humidity;

[0069] The water spray hole and the quick interface 18 make the drainage operation more convenient; in the process of discharging excess water, the water can be quickly discharged to avoid the influence of excessive water on the system; this design improves the maintainability of the system and reduces the risk of equipment failure.

[0070] As a specific implementation, the air supply device includes an air supply pipe 13, a filter box 14 and an air supply fan 15, the filter box 14 is connected to the biofilter 1 through the air supply pipe 13, and the filter box 14 is arranged in the air supply pipe 13;

[0071] A drainage groove is provided in the air supply pipe 13 , and a drainage bucket 16 is detachably connected to the bottom of the drainage groove through a connecting piece, and the drainage bucket 16 is connected to a drainage pipe 17 .

[0072] Specifically, the malodorous gas is sucked in through the air supply fan 15 in the air supply equipment and transported to the biofilter 1 through the air supply pipe 13; a filter box 14 is provided in the air supply pipe 13 for preliminary filtering of the malodorous gas entering the system; the filter device in the filter box 14 can remove larger particle impurities and some harmful components in the gas, ensuring that the gas entering the biofilter 1 is relatively clean.

[0073] Example 2

[0074] like Figure 1-8 As shown, this embodiment discloses a high-efficiency biological deodorization system, including a biological filter 1, which is connected to an overpressure prevention device, a water replenishment device, a water return and drainage device, and an air supply device;

[0075] The overpressure prevention device includes an electric contact pressure gauge 2, a pressure sensor 3 and a thin cover plate 4; the electric contact pressure gauge 2 and the pressure sensor 3 are arranged on the top of the biofilter 1; a plurality of through holes are arranged on the top of the biofilter 1, and a thin cover plate 4 is detachably arranged on the through holes;

[0076] The water replenishment equipment includes a ring water pipe 5, a control water valve 6 and an inclined water pipe 7; the ring water pipe 5 is arranged on the biological filter 1; one end of the inclined water pipe 7 is connected to the ring water pipe 5 through the control water valve 6, and the other end of the inclined water pipe 7 is arranged in the biological filter 1.

[0077] As a specific implementation, the thin cover plate 4 is provided with a plurality of fixing grooves for connection and fixing, and the thin cover plate 4 is also provided with a plurality of line marks;

[0078] A water pressure sensor is also provided in the control water valve 6, and the water pressure sensor, the electric contact pressure gauge 2 and the pressure sensor 3 are also electrically connected to the control system.

[0079] Specifically, when the deodorization system is in operation, the electric contact pressure gauge 2, the pressure sensor 3 and the water pressure sensor monitor the pressure and water pressure of the biofilter 1 in real time, and these data are uniformly analyzed and processed through an electrically connected control system; the control system determines whether the pressure in the system is normal or whether it is necessary to start the water replenishment equipment to adjust the humidity based on the collected pressure and water pressure data.

[0080] When the pressure in the biofilter 1 is abnormal (for example, the air pressure is too high or too low), the pressure sensor 3 and the electric contact pressure gauge 2 will feed back the pressure data to the control system in real time, and the control system will determine whether the pressure value exceeds the safety threshold; if the pressure is too high, the thin cover plate 4 located on the top of the biofilter 1 will automatically crack through its preset line marks, quickly releasing the excess pressure, thereby preventing the biofilter 1 from structural damage or collapse due to abnormal pressure; the design of the fixing groove ensures that the thin cover plate 4 is firmly connected under non-abnormal conditions, and is convenient for quick replacement after the thin cover plate 4 cracks.

[0081] When moss accumulates inside the inclined water pipe 7 or it is blocked, the system monitors the drop in the working water pressure of the water pressure sensor and notifies the maintenance personnel to replace the inclined water pipe 7, thereby realizing real-time monitoring of the working status of the inclined water pipe 7 through the water pressure sensor, and being able to detect abnormalities in time at the early stage of moss accumulation or blockage, thereby avoiding the expansion of the problem and affecting the normal operation of the biological filter 1.

[0082] As a specific implementation, a plurality of water pipes for spraying water are also provided on the top of the biofilter 1, and the water pipes are composed of a main water pipe and branch water pipes, and the main water pipe is connected to a plurality of branch water pipes.

[0083] Specifically, the main water pipe is arranged at the top of the biological filter 1, and is used to connect a plurality of branch water pipes. The branch water pipes are connected to the biological filter 1 through branches to ensure that water can be evenly distributed to different areas of the filter. Each branch water pipe is provided with a water spray hole, which is used to spray water evenly to the biological filler area inside the biological filter 1. Through the water spray hole, water can timely replenish and moisten the microbial community in the biological filter 1, maintain the activity of the microbial community, and effectively decompose the odorous substances in the gas.

[0084] Example 3

[0085] like Figure 1-3 As shown, the present embodiment provides a treatment method for a high-efficiency biological deodorization system, including the following:

[0086] S1: Malodorous gas is sucked in by the air supply fan 15 in the air supply device, and then the gas is transported to the filter box 14 through the air supply pipe 13. The filter box 14 is provided with a filtering device for preliminarily removing larger particle impurities and some harmful components;

[0087] S2: The pre-treated gas enters the biofilter 1, and the gas is transported to the inside of the filter through the evenly distributed air supply pipes 13; the biological filler area of ​​the biofilter 1 contains a specific microbial community, which can decompose the odorous components in the gas to achieve gas purification;

[0088] S3: When it is necessary to replenish water to the biological filler area of ​​the biological filter 1, the control water valve 6 is opened to allow the water in the annular water pipe 5 to be evenly sprayed into the biological filler area of ​​the biological filter 1 through the inclined water pipe 7;

[0089] S4: When it rains, the drainage equipment can be turned on for recycling. The water collecting component 8 collects rainwater on the top of the biofilter 1, and then sends it to the filter component 9 through the backflow pipe 10 for filtration. The cleaned impurities enter the waste pipe 11 for discharge, and the purified wastewater is circulated to the circulating water pipe 5 for reuse;

[0090] S5: When the internal pressure of the biofilter 1 reaches a certain threshold, the thin cover plate 4 will crack along the line marks, thereby preventing the biofilter 1 from collapsing due to the abnormal pressure;

[0091] S6: When the humidity of the malodorous gas is too high, the moisture will flow downward along the pipe wall of the air supply pipe 13, eventually gather in the drainage bucket 16, and then fall into the drainage pipe 17 to be guided to the external wastewater treatment system or water storage container.

[0092] Specifically, the malodorous gas is first sucked in by the air supply fan 15 in the air supply device, and is transported to the filter box 14 through the air supply pipe 13. The filter box 14 is provided with a filtering device for preliminarily removing larger particle impurities and some harmful components in the gas to ensure that the gas entering the biofilter 1 is relatively clean;

[0093] The gas after preliminary filtration enters the biofilter 1, and is sent to the interior of the biofilter 1 through the evenly distributed air supply pipes 13; the microorganisms inside the biofilter 1 can decompose harmful components in the malodorous gas, such as sulfide, ammonia, etc., thereby achieving effective purification of the gas.

[0094] The efficient biological deodorization system improves the efficiency of gas purification and the safety of the system through a number of technical means; the automated water replenishment, rainwater recovery and moisture drainage design not only ensures the long-term stable operation of the biological filter 1, but also enables more effective recycling of resources; the pressure monitoring and automatic protection functions provide additional safety guarantees for the system, ensuring that it can maintain optimal performance in the face of various working conditions.

[0095] As a specific implementation method, when the abnormal internal pressure of the biological filter 1 of S5 causes the thin cover plate 4 to crack, the internally connected electric contact pressure gauge 2 and pressure sensor 3 will feel the filter pressure drop sharply or become unstable. By linking with the control system, the air pressure change can be accurately monitored, and the abnormal data can be fed back to the control system in time; when the inclined water pipe 7 is blocked, the water pressure sensor will feel the filter pressure drop. By linking with the control system, the water pressure change can be accurately monitored, and the abnormal data can be fed back to the control system in time.

[0096] Specifically, the gas pressure inside the biofilter 1 is monitored in real time by the electric contact pressure gauge 2 and the pressure sensor 3;

[0097] When the pressure inside the filter tank changes abnormally, such as a sharp drop or instability, the electric contact pressure gauge 2 and the pressure sensor 3 will detect the pressure fluctuation, and then transmit the electric signal to the control system and synchronize the pressure information to the staff;

[0098] When the internal pressure abnormally rises or drops to a preset threshold, the cracking mechanism of the thin cover plate 4 is triggered, and the multiple lines set on the thin cover plate 4 will crack in a preset direction to prevent the biofilter 1 from rupturing or collapsing due to excessive pressure, thereby ensuring the safety of the biofilter 1.

[0099] This embodiment realizes efficient early warning and timely handling of system failures by real-time monitoring of the internal pressure and water pressure of the biofilter 1 system, combined with automated feedback and alarm mechanisms. The precise coordination of thin cover crack protection, pressure monitoring and water pressure detection not only improves the safety and stability of the system, but also reduces maintenance costs and enhances the reliability of the equipment.

[0100] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A highly efficient biological deodorization system, characterized in that: The biofilter (1) is connected to an overpressure prevention device, a water replenishment device, a water return and drainage device, and an air supply device; The overpressure prevention device comprises an electric contact pressure gauge (2), a pressure sensor (3) and a thin cover plate (4); the electric contact pressure gauge (2) and the pressure sensor (3) are arranged on the top of the biofilter (1); a plurality of through holes are arranged on the top of the biofilter (1), and a thin cover plate (4) is detachably arranged on the through holes; The water replenishment equipment comprises a ring water pipe (5), a control water valve (6) and an inclined water pipe (7); the ring water pipe (5) is arranged on the biological filter (1); one end of the inclined water pipe (7) is connected to the ring water pipe (5) through the control water valve (6), and the other end of the inclined water pipe (7) is arranged in the biological filter (1).

2. The high-efficiency biological deodorization system according to claim 1 is characterized in that: The water return drainage equipment comprises a water collecting component (8), a filtering component (9) and a backflow pipe (10); the water collecting component (8) is arranged on the top of the biological filter (1) and is connected to the circulating water pipe (5) through the backflow pipe (10); the filtering component (9) is arranged in the backflow pipe (10) and is used to filter impurities in the backflow pipe (10) into a waste pipe (11) and discharge them.

3. The high-efficiency biological deodorization system according to claim 2 is characterized in that: The filter component (9) is a filter plate, which is arranged obliquely in the backflow pipe (10), and the inclined opening of the filter plate is arranged at the top of the waste pipe (11).

4. The high-efficiency biological deodorization system according to claim 3 is characterized in that: The biological filter (1) is provided with a water spraying hole, a quick interface (18) is provided at the water spraying hole, and the backflow pipe (10) is provided with a backflow sleeve (12) for waterproofing.

5. The high-efficiency biological deodorization system according to claim 4 is characterized in that: The air supply equipment comprises an air supply pipe (13), a filter box (14) and an air supply fan (15); the filter box (14) is connected to the biofilter (1) via the air supply pipe (13); and the filter box (14) is arranged inside the air supply pipe (13).

6. The high-efficiency biological deodorization system according to claim 5 is characterized in that: The air supply pipe (13) is provided with a drainage groove in the interior, and the drainage bucket (16) is detachably connected to the bottom of the drainage groove via a connecting piece, and the drainage bucket (16) is connected to a drainage pipe (17).

7. The high-efficiency biological deodorization system according to claim 6, characterized in that: The thin cover plate (4) is provided with a plurality of fixing grooves for connection and fixing, and the thin cover plate (4) is also provided with a plurality of line marks.

8. The high-efficiency biological deodorization system according to claim 7 is characterized in that: A water pressure sensor is also provided inside the control water valve (6), and the water pressure sensor, the electric contact pressure gauge (2) and the pressure sensor (3) are also electrically connected to the control system.

9. The high-efficiency biological deodorization system according to claim 8, characterized in that: The top of the biological filter (1) is also provided with a plurality of water pipes for spraying water, wherein the water pipes are composed of a main water pipe and a branch water pipe, and the main water pipe is connected to a plurality of branch water pipes.

10. A treatment method using the high-efficiency biological deodorization system according to claim 9, characterized in that: The treatment method of the efficient biological deodorization system includes the following: S1: Malodorous gas is sucked in by the air supply fan (15) in the air supply device, and then the gas is transported to the filter box (14) through the air supply pipe (13). The filter box (14) is provided with a filtering device for preliminarily removing larger particle impurities and some harmful components; S2: The pre-treated gas enters the biofilter (1), and the gas is transported to the inside of the filter through evenly distributed air supply pipes (13); the biological filler area of ​​the biofilter (1) contains a specific microbial community, which can decompose the odorous components in the gas to achieve gas purification; S3: When it is necessary to replenish water to the biological filler area of ​​the biological filter (1), the control water valve (6) is opened to allow the water in the annular water pipe (5) to be evenly sprayed into the biological filler area of ​​the biological filter (1) through the inclined water pipe (7); S4: When it rains, the drainage equipment can be turned on for recycling. The water collecting component (8) collects rainwater from the top of the biofilter (1), and then sends it to the filtering component (9) for filtration through the backflow pipe (10). The impurities removed are discharged into the waste pipe (11), and the purified wastewater is circulated to the circulating water pipe (5) for reuse; S5: When the internal pressure of the biofilter (1) reaches a certain threshold value, the thin cover plate (4) will crack along the line marks, thereby preventing the biofilter (1) from collapsing due to the abnormal pressure; S6: When the humidity of the malodorous gas is too high, the moisture will flow downward along the pipe wall of the air supply pipe (13), eventually gathering in the drainage bucket (16), and then falling into the drainage pipe (17) and being guided to the external wastewater treatment system or water storage container.

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