Quick-start movable sewage treatment device and sewage treatment method

Abstract

The invention discloses a quick-start movable sewage treatment device and a sewage treatment method, and relates to the technical field of sewage treatment. The quick-start movable sewage treatment device comprises a sludge storage tank, a mixed reaction tank, a biological filter tank, a sedimentation tank and a water outlet tank, a sludge pump is arranged in the sludge storage tank; the mixed reaction tank is externally connected with a water inlet pipe, and sewage is introduced into the mixed reaction tank through the water inlet pipe; the mixed reaction tank comprises a crushing tank and a stirring tank; a sludge outlet pipe of the sludge pump is communicated with the top end of the crushing pool; according to the quick-start movable sewage treatment device provided by the invention, a large number of microorganisms in water-containing sludge are mixed with to-be-treated sewage in the mixing reaction tank, so that pollutants in the sewage can be quickly degraded, and then subsequent treatment is performed, so that the sewage is sufficiently and efficiently purified; and the water-containing sludge is recycled, so that the sewage treatment cost can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a quick-start movable sewage treatment device and a sewage treatment method. Background Art

[0002] With the continuous improvement of environmental protection requirements, wastewater discharge indicators are becoming increasingly stringent, which poses a higher challenge to the sewage treatment capacity of enterprises. However, due to many unstable factors in the sewage treatment process, such as frequent fluctuations in water quality, unpredictable changes in temperature, and differences in professional skills and operational capabilities of on-site operators, it is difficult to always maintain the ideal sewage treatment effect. Therefore, in daily operations, sewage discharge enterprises will inevitably encounter abnormal operation of sewage treatment facilities or treatment effects that fail to meet expected standards.

[0003] In the complex and delicate process of sewage treatment, water quality fluctuation is an unavoidable phenomenon. In order to deal with this problem, relevant companies are currently actively exploring and practicing a variety of countermeasures. Among them, a common practice is to expand the scale of the wastewater collection and homogenization tank to extend the residence time of the wastewater as much as possible, thereby achieving effective equalization of the incoming water quality and reducing the adverse effects of water quality fluctuations on sewage treatment effects. Another strategy is to actively reduce production capacity when water quality fluctuations are more severe to reduce the discharge of sewage, thereby alleviating the burden on the sewage treatment system to a certain extent and ensuring its stable operation.

[0004] However, the implementation of these measures is not without cost. Expanding the wastewater collection and homogenization pool requires enterprises to invest more money in construction and maintenance, which will undoubtedly increase the operating costs of enterprises. Although reducing production capacity can alleviate the pressure of sewage treatment in the short term, it may have a significant negative impact on the production efficiency of enterprises in the long run, and may even put enterprises at a disadvantage in the fierce market competition. Summary of the invention

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies in the related art. The present invention provides a quick-start movable sewage treatment device.

[0006] The present invention provides the following technical solutions:

[0007] A quick-start movable sewage treatment device comprises a sludge storage tank, a mixing reaction tank, a biological filter tank, a sedimentation tank and a water outlet tank.

[0008] The sludge storage tank is used to store water-containing sludge, and a sludge pump is provided in the sludge storage tank; the mixing reaction tank is externally connected to a water inlet pipe, and the sewage to be treated is introduced into the mixing reaction tank through the water inlet pipe; the mixing reaction tank comprises a crushing tank and a stirring tank, the crushing tank is connected to the bottom of the stirring tank, a crushing assembly is provided in the crushing tank, and a stirring assembly is provided in the stirring tank; the mud outlet pipe of the sludge pump is connected to the top of the crushing tank.

[0009] The biological filter tank is connected to the mixing reaction tank through a first water passage; a sedimentation component is laid in the sedimentation tank, and the biological filter tank is connected to the sedimentation tank through a second water passage; a third water passage is provided between the outlet tank and the sedimentation tank.

[0010] As a further improvement of the above technical solution, a carbon inlet pipe is provided at the top of the crushing pool, the carbon inlet pipe is connected to a carbon source device, and the carbon inlet pipe is used to fill carbon into the crushing pool.

[0011] As a further improvement of the above technical solution, a filtration layer is provided in the biological filter; one end of the first water passage is connected to the top of the mixing reaction tank, and the other end of the first water passage is connected to the bottom of the biological filter.

[0012] As a further improvement of the above technical solution, the bottom of the biological filter is connected to an aeration device, the aeration device is externally connected to a diverter frame, the diverter frame is located at the bottom of the biological filter, and a plurality of air outlets are evenly distributed on the diverter frame.

[0013] As a further improvement of the above technical solution, a first liquid level meter is provided in the mixing reaction tank, and a second liquid level meter is provided in the biological filter tank.

[0014] As a further improvement of the above technical solution, a sedimentation component is laid in the sedimentation tank, one end of the second water passage is connected to the top of the biological filter tank, and the other end of the second water passage is connected to the bottom of the sedimentation tank.

[0015] As a further improvement of the above technical solution, the sedimentation assembly is composed of a plurality of inclined plates arranged in parallel.

[0016] As a further improvement of the above technical solution, one end of the third water passage is connected to the top of the sedimentation tank, and the other end of the third water passage is connected to the bottom of the outlet tank. A drainage pipe is provided on the side wall of the outlet tank.

[0017] As a further improvement of the above technical solution, a backwash pump is provided in the water outlet tank, and the outlet pipe of the backwash pump is connected to the top of the biological filter tank; the bottom end of the biological filter tank is externally connected to a return pipe, and the end of the return pipe away from the biological filter tank is connected to the sludge storage tank, and a pipeline pump is provided on the return pipe.

[0018] As a further improvement of the above technical solution, a third liquid level gauge is provided in the sludge storage tank, a sludge discharge pipe is provided at the end branch of the return pipe close to the biological filter tank, and a sludge discharge port is provided on the return pipe; a pipeline pump is provided on the return pipe, and the pipeline pump is located between the sludge discharge port and the sludge discharge pipe.

[0019] As a further improvement of the above technical solution, measuring instruments are provided on the water inlet pipe and in the water outlet pool, and a return pipe is provided at the end branch of the drainage pipe away from the water outlet pool, and the return pipe is connected to the mixing reaction pool.

[0020] The present invention also provides a sewage treatment method, which is used in any one of the above-mentioned quick-start movable sewage treatment devices, and the sewage treatment method comprises:

[0021] The water-containing sludge in the sludge storage tank is pumped into the crushing tank of the mixing reaction tank.

[0022] The sewage to be treated is input into the mixing reaction tank, and the water-containing sludge in the crushing tank is crushed by the crushing component and mixed with the sewage to be treated.

[0023] The fine flocs of the sludge are further mixed with the sewage to be treated.

[0024] Carbon is added into the crushing tank so that the microorganisms in the sludge in the crushing tank can fully contact with the carbon source, allowing the dominant bacteria species among the microorganisms that are adapted to sewage treatment to proliferate.

[0025] After the sewage is mixed with the broken and fine activated sludge flocs, the bottom of the biofilter is evenly aerated to keep the microorganisms in a state of dissolved oxygen.

[0026] The activated sludge flocs in the sewage in the sedimentation tank are subjected to sedimentation treatment.

[0027] Compared with the related art, the beneficial effects of the present invention are:

[0028] The quick-start movable sewage treatment device provided by the present invention first pumps the water-containing sludge accumulated in the sludge storage tank to the crushing tank of the mixing reaction tank through a sludge pump during the entire process of treating sewage. The crushing component in the crushing tank is started, and its powerful crushing ability enables the water-containing sludge entering the crushing tank to be quickly and effectively crushed. At the same time, the water inlet pipe continuously introduces the sewage to be treated into the mixing reaction tank. In this process, the crushing component can not only quickly decompose the activated sludge and flocs in the water-containing sludge into smaller flocs, but also significantly increase the surface area of ​​contact between the activated sludge and the sewage. In this way, the microorganisms on the surface layer of the fine flocs of the activated sludge can more fully contact the pollutants in the sewage, thereby participating in the pollutant degradation process of the sewage to the greatest extent, and significantly improving the degradation efficiency. The stirring component can drive the activated sludge to be fully mixed with the sewage to be treated, which not only enhances the interaction between the microorganisms and the pollutants, but also further improves the degradation rate of the pollutants in the sewage.

[0029] What is more worth mentioning is that the full contact between sewage and the microorganisms on the surface of the tiny activated sludge flocs provides favorable conditions for the optimal cultivation of microorganisms in the sludge. In this process, those dominant bacteria adapted to sewage treatment can multiply rapidly and take a dominant position, becoming the core force that can effectively deal with sewage treatment. This not only ensures the stability and reliability of the subsequent sewage treatment effect, but also enables the sewage treatment function of the present invention to be quickly started in a short time, significantly improving the overall efficiency of sewage treatment.

[0030] In the whole sewage treatment process, the present invention cleverly utilizes a large number of microorganisms in the water-containing sludge to fully mix with the sewage to be treated in the mixing reaction tank, and by changing the size of the activated sludge flocs, combining with the characteristics of the biological filter, and creating a suitable biochemical environment, the activated sludge of the filter material is quickly attached to the filter, and the membrane layer of the biodegradable pollutants is formed, thereby achieving effective degradation of the pollutants in the sewage. Subsequently, through the filtering and sedimentation steps carried out in sequence, the sewage is further fully and efficiently purified.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A schematic diagram of the structure of a quick-start mobile sewage treatment device according to one embodiment of the present invention is shown;

[0034] Figure 2 A schematic diagram of the structure of an aeration device according to an embodiment of the present invention is shown;

[0035] Figure 3 A schematic structural diagram of a pipeline pump from one perspective in one embodiment of the present invention is shown;

[0036] Figure 4 A schematic flow chart of a sewage treatment method in one embodiment of the present invention is shown.

[0037] Description of main component symbols:

[0038] 100-sludge storage tank; 101-third level gauge; 110-sludge pump; 111-sludge outlet pipe; 200-mixing reaction tank; 201-water inlet pipe; 202-carbon inlet pipe; 203-first level gauge; 210-crushing tank; 211-crushing assembly; 220-stirring tank; 221-stirring assembly; 300-biological filter; 301-second level gauge; 310-filtration layer; 320-first filter Water channel; 330-aeration equipment; 331-diverter rack; 400-sedimentation tank; 410-second water passage; 420-sedimentation assembly; 500-outlet tank; 510-third water passage; 520-drain pipe; 521-return pipe; 530-backwash pump; 531-outlet pipe; 540-return pipe; 541-pipeline pump; 542-mud discharge pipe; 543-mud discharge port; 550-measuring instrument. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] like Figure 1 As shown, an embodiment of the present invention provides a quick-start mobile sewage treatment device, including a sludge storage tank 100, a mixing reaction tank 200, a biological filter 300, a sedimentation tank 400 and a water outlet tank 500.

[0045] The sludge storage tank 100 is used to store water-containing sludge, and a sludge pump 110 is provided in the sludge storage tank 100; the mixing reaction tank 200 is externally connected to a water inlet pipe 201, and the sewage to be treated is introduced into the mixing reaction tank 200 through the water inlet pipe 201; the mixing reaction tank 200 includes a crushing tank 210 and a stirring tank 220, and the bottoms of the crushing tank 210 and the stirring tank 220 are interconnected, and a crushing component 211 is provided in the crushing tank 210, and a stirring component 221 is provided in the stirring tank 220. The crushing component 211 can specifically adopt a high-speed mixer as the core equipment; the mud outlet pipe 111 of the sludge pump 110 is connected to the top of the crushing tank 210; the biological filter 300 and the mixing reaction tank 200 are connected through the first water passage 320; a sedimentation component 420 is laid in the sedimentation tank 400, and the biological filter 300 and the sedimentation tank 400 are connected through the second water passage 410; a third water passage 510 is provided between the outlet tank 500 and the sedimentation tank 400.

[0046] The quick-start mobile sewage treatment device provided in this embodiment, in the whole process of sewage treatment, firstly pumps the water-containing sludge accumulated in the sludge storage tank 100 to the crushing tank 210 of the mixing reaction tank 200 through the sludge pump 110. The crushing component 211 in the crushing tank 210 is started, and its powerful crushing ability enables the water-containing sludge entering the crushing tank 210 to be quickly and effectively crushed. At the same time, the water inlet pipe 201 continuously introduces the sewage to be treated into the mixing reaction tank 200. In this process, the crushing component 211 can not only quickly decompose the activated sludge and flocs in the water-containing sludge into smaller flocs, but also significantly increase the surface area of ​​contact between the activated sludge and the sewage. In this way, the microorganisms on the surface layer of the fine flocs of the activated sludge can more fully contact the pollutants in the sewage, thereby participating in the pollutant degradation process of the sewage to the greatest extent, and significantly improving the degradation efficiency. The stirring component 221 can drive the activated sludge to be fully mixed with the sewage to be treated, which not only enhances the interaction between microorganisms and pollutants, but also further increases the degradation rate of pollutants in the sewage, facilitates the smooth progress of subsequent sewage treatment processes, ensures the quality of sewage treatment, and improves sewage treatment efficiency.

[0047] What is more worth mentioning is that the full contact between sewage and the microorganisms on the surface of the tiny activated sludge flocs provides favorable conditions for the optimal cultivation of microorganisms in the sludge. In this process, those dominant bacteria adapted to sewage treatment can multiply rapidly and take a dominant position, becoming the core force that can effectively deal with sewage treatment. This not only ensures the stability and reliability of the subsequent sewage treatment effect, but also enables the sewage treatment function of this embodiment to be quickly started in a short time, significantly improving the overall efficiency of sewage treatment.

[0048] In the whole sewage treatment process, this embodiment cleverly utilizes a large number of microorganisms in the water-containing sludge to fully mix with the sewage to be treated in the mixing reaction tank 200, thereby achieving effective degradation of pollutants in the sewage. Subsequently, the treated sewage is filtered and settled in the biological filter 300 and the sedimentation tank 400 in sequence, and finally discharged through the effluent tank 500, further fully and efficiently purifying the sewage. In addition, this embodiment also reduces the cost of sludge treatment and effectively reduces the cost of the entire sewage treatment by realizing the reuse of water-containing sludge, showing its dual advantages in environmental protection and economic benefits.

[0049] In some specific embodiments, the top of the crushing tank 210 is connected to a carbon inlet pipe 202, and the carbon inlet pipe 202 is connected to a carbon source device, and the carbon inlet pipe 202 is used to charge carbon into the crushing tank 210; as an important part of this system, the carbon source device is responsible for providing a stable and sufficient carbon source to meet the growth and metabolic needs of microorganisms in the activated sludge in the crushing tank 210. Through the carbon inlet pipe 202, the carbon source device can continuously and evenly charge the carbon source into the crushing tank 210, ensuring that the microorganisms and the carbon source can fully contact and react effectively.

[0050] Specifically, by breaking the size of activated sludge flocs, the fine activated sludge flocs can fully and efficiently collide and adhere to the carbon source in the mixing reaction tank 200, and the activated sludge can be quickly attached to the filter material and a membrane layer of biodegradable pollutants can be formed, so that the biological filter 300 can quickly reach the designed processing capacity and meet the pollutant degradation needs.

[0051] The cleverness of this design is that it makes full use of the environment and conditions in the crushing tank 210 to provide an ideal growth environment for microorganisms. With sufficient carbon source supply, the microorganisms in the activated sludge can accelerate their proliferation rate, and by changing the size of the activated sludge flocs and combining with the characteristics of the biological filter 300, the fine activated sludge flocs can fully and efficiently collide and adhere to the filter material of the biological filter 300, quickly achieving the attachment of the activated sludge to the filter material of the filter and the formation of a biodegradable pollutant film, thereby further improving the degradation efficiency of pollutants in the sewage. This not only helps to improve the overall effect of sewage treatment, but also shortens the treatment cycle and reduces operating costs.

[0052] In some specific embodiments, the biological filter 300 is provided with a filter layer 310, one end of the first water passage 320 is connected to the top of the mixing reaction tank 200, and the other end of the first water passage 320 is connected to the bottom of the biological filter 300; specifically, as the sewage water level in the mixing reaction tank 200 gradually rises, when it reaches a preset certain height, the sewage can overflow into the first water passage 320 and smoothly enter the bottom of the biological filter 300. In the biological filter 300, the sewage flows through the filter layer 310 from bottom to top. Since the activated sludge flocs participating in the pollutant degradation reaction are small, they can easily penetrate the filter layer 310. In this process, the tiny activated sludge flocs can fully contact and adhere to the surface of the filter material, so that a large number of activated sludge flocs and microorganisms can quickly adhere to the surface of the filter material. These activated sludge membrane layers attached to the surface of the filter media and the microorganisms inside them work together to efficiently achieve the rapid start-up of the biofilter 300, while satisfying the degradation of chemical oxygen demand (COD), thereby significantly increasing the degradation rate of pollutants in sewage.

[0053] Combination Figure 1 , Figure 2 As shown, in some specific embodiments, the bottom of the biofilter 300 is connected to an aeration device 330, and the aeration device 330 is externally connected to a diverter frame 331, and the diverter frame 331 is located at the bottom of the biofilter 300. The diverter frame 331 is evenly distributed with multiple air outlets; the uniform arrangement of these air outlets can ensure that oxygen can be evenly and fully dispersed to every corner of the bottom of the biofilter 300. When the aeration device 330 is started, oxygen is released into the water body of the biofilter 300 in the form of tiny bubbles through the air outlets on the diverter frame 331. These bubbles continuously contact with microorganisms in the water body during the rising process, providing them with necessary dissolved oxygen.

[0054] Through the uniform aeration of the aeration device 330, the microorganisms in the biofilter 300 can always be in a suitable dissolved oxygen state. Specifically, the suitable dissolved oxygen concentration is crucial to the activity and function of the microorganisms. Microorganisms need to consume oxygen when carrying out life activities such as organic matter degradation and biosynthesis. If the dissolved oxygen concentration is too low, the respiration of the microorganisms will be restricted, causing their metabolic activities to slow down, and may even cause anaerobic reactions, which will not only reduce the decomposition rate of organic matter, but may also produce undesirable intermediates, affecting the treatment effect of the biofilter 300. On the contrary, if the dissolved oxygen concentration is too high, although it can ensure the full respiration of the microorganisms, it will also increase energy consumption and operating costs. At the same time, too high oxygen concentration may also cause oxidative stress to the microorganisms, which is not conducive to its long-term stable operation.

[0055] Therefore, maintaining an appropriate dissolved oxygen concentration range is essential to ensure the normal growth and reproduction of microorganisms. Within this concentration range, the metabolic activity of microorganisms is most active, and they can efficiently use oxygen to degrade organic matter while maintaining a high biomass and activity. This not only improves the decomposition rate of organic matter in the biofilter 300, but also enhances its ability to remove various pollutants, thereby significantly improving the overall treatment efficiency of the biofilter 300.

[0056] In some specific embodiments, a sedimentation assembly 420 is laid in the sedimentation tank 400, one end of the second water passage 410 is connected to the top of the biological filter 300, and the other end of the second water passage 410 is connected to the bottom of the sedimentation tank 400; specifically, as the water level in the biological filter 300 continues to rise, when it reaches a preset certain height again, the sewage can overflow into the second water passage 410 and enter the bottom of the sedimentation tank 400. In the sedimentation tank 400, the activated sludge flocs in the sewage are deposited to the bottom of the tank due to gravity. This step effectively realizes solid-liquid separation and further purifies the water quality.

[0057] In some specific embodiments, the sedimentation assembly 420 is composed of a plurality of parallel inclined plates, which is convenient for blocking flocculent impurities in sewage and improving its sedimentation efficiency.

[0058] In some specific embodiments, one end of the third water passage 510 is connected to the top of the sedimentation tank 400, and the other end of the third water passage 510 is connected to the bottom of the outlet tank 500. A drain pipe 520 is provided on the side wall of the outlet tank 500. Specifically, as the water level in the sedimentation tank 400 continues to rise and reaches another preset height, the sewage enters the bottom of the outlet tank 500 through the third water passage 510 again. As the water level in the outlet tank 500 gradually rises and eventually submerges the drain pipe 520, the treated sewage can be discharged from the drain pipe 520, achieving standard sewage discharge.

[0059] Combination Figure 1 , Figure 3 As shown, in some specific embodiments, a backwash pump 530 is provided in the outlet tank 500, and an outlet pipe 531 of the backwash pump 530 is connected to the top of the biological filter tank 300; a return pipe 540 is externally connected to the bottom end of the biological filter tank 300, and the end of the return pipe 540 away from the biological filter tank 300 is connected to the sludge storage tank 100, and a pipeline pump 541 is provided on the return pipe 540 to provide necessary power support for the return process.

[0060] The reason for this design is that during the long-term operation of the biofilter 300, more and more flocs will be attached to the filter layer 310 inside the biofilter 300. The continuous attachment of these flocs will gradually block the water flow channel and affect the normal filtering function of the biofilter 300. In order to avoid this situation, the operator needs to regularly backwash the filter layer 310 in the biofilter 300 according to the actual situation.

[0061] When backwashing, the operator first needs to turn off the sludge pump 110 and the valves on the carbon inlet pipe 202 and the water inlet pipe 201 in turn to ensure that no new water flow or material enters the biofilter 300 during the backwashing process. Subsequently, the backwash pump 530 is started, the valve on the return pipe 540 is opened, and the pipeline pump 541 is started at the same time. At this time, the water in the outlet pool 500 is pumped to the top of the biofilter 300 under the action of the backwash pump 530, and the flocs on the surface of the filter layer 310 are strongly flushed. These flushed flocs, under the suction action of the pipeline pump 541, flow smoothly back to the sludge storage tank 100 along the return pipe 540, achieving effective cleaning of the filter layer 310 and recycling of sludge.

[0062] In some specific embodiments, the mixing reaction tank 200 is provided with a first liquid level meter 203, and the biofilter 300 is provided with a second liquid level meter 301; the user can easily calculate the liquid level difference between the mixing reaction tank 200 and the biofilter 300 by observing the values ​​of the first liquid level meter 203 and the second liquid level meter 301, and the user can easily calculate the liquid level difference between the mixing reaction tank 200 and the biofilter 300 by regularly observing the values ​​displayed on the first liquid level meter 203 and the second liquid level meter 301. This difference is very important for evaluating the operating status of the biofilter 300.

[0063] In actual operation, when the liquid level difference between the mixing reaction tank 200 and the biological filter 300 is greater than a preset critical value, it means that the filter layer 310 inside the biological filter 300 may have an abnormal situation. Specifically, an excessively large liquid level difference often indicates that the resistance of the filter layer 310 in the biological filter 300 has increased significantly, which may be due to the flocs or impurities attached to the filter layer 310 due to long-term operation, thereby causing an increase in hydraulic loss.

[0064] Once the liquid level difference is found to be beyond the preset range, the operator can immediately take action to backwash the filter layer 310 in the biofilter 300. This step is crucial because it can effectively remove impurities and particles on the filter layer 310 and restore its filtering capacity, thereby ensuring that the biofilter 300 can always maintain an optimal filtering state.

[0065] This design not only improves the operating efficiency of the biofilter 300, but also reduces maintenance costs, ensuring the stability and reliability of the entire water treatment system. At the same time, it also provides operators with a more intuitive and convenient monitoring method, allowing them to discover and deal with potential problems in a timely manner, ensuring the smooth progress of the entire water treatment process.

[0066] In some specific embodiments, a third liquid level gauge 101 is provided in the sludge storage tank 100, a mud discharge pipe 542 is provided at the end branch of the return pipe 540 close to the biological filter 300, and a mud discharge port 543 is provided on the return pipe 540; a pipeline pump 541 is provided on the return pipe 540, and the pipeline pump 541 is located between the mud discharge port 543 and the mud discharge pipe 542; in the mixing reaction tank 200, the proliferation process of microorganisms is a key link. In this process, the circulation of activated sludge plays a vital role. However, with the continuous increase in the value of microorganisms, the amount of sludge in the sludge storage tank 100 will gradually increase. When the third liquid level gauge 101 shows that the liquid level in the sludge storage tank 100 is too high, it means that we need to take timely measures to discharge excess sludge to avoid excessive pressure on the system.

[0067] At this time, the operator can quickly open the valves of the mud discharge port 543 and the mud discharge pipe 542, and start the pipeline pump 541 at the same time. Under the powerful power of the pipeline pump 541, the flocculent sludge in the biological filter 300 will be smoothly sucked into the mud discharge pipe 542, and discharged to the designated location through the mud discharge port 543. This process is not only efficient and fast, but also can ensure that the discharge amount of sludge is accurately controlled, thereby effectively maintaining the normal operation of this embodiment.

[0068] In some specific embodiments, a measuring instrument 550 is provided on the water inlet pipe 201 and in the water outlet tank 500, which is used to detect the chemical oxygen demand (COD) in the water inlet pipe 201 and the water outlet tank 500; a return pipe 521 is provided at the end of the drain pipe 520 away from the water outlet tank 500, and the return pipe 521 is connected to the mixing reaction tank 200. Specifically, when the measuring instrument 550 in the water outlet tank 500 shows that the water quality does not meet the standard, the user can quickly respond by observing these data. They only need to close the valve at the drain pipe 520 and open the valve of the return pipe 521 at the same time, and they can easily return the sewage that does not meet the standard to the mixing reaction tank 200. In this way, the sewage can be treated again in the mixing reaction tank 200 until it meets the discharge standard.

[0069] In addition, the operator can also accurately judge the sewage treatment effect of the present embodiment by comparing the values ​​of the measuring instrument 550 in the water inlet pipe 201 and the water outlet tank 500. This comparison can not only help them understand the current water quality, but also provide them with a basis for adjusting the water inlet speed. If the COD value of the water outlet tank 500 is still high, it means that the current sewage treatment efficiency needs to be improved. The operator can appropriately reduce the water delivery speed of the water inlet pipe 201 to give the mixing reaction tank 200 more time to treat the sewage. On the contrary, if the COD value of the water outlet tank 500 is already very low, it means that the current sewage treatment efficiency is high. The operator can appropriately increase the water delivery speed of the water inlet pipe 201 to improve the processing capacity of the entire system.

[0070] In some specific embodiments, in order to further improve the portability and operating efficiency of the device, each key component in the above-mentioned embodiments is integrated into a compact base. This design not only optimizes the spatial layout and reduces the complexity of the connection between components, but also significantly enhances the overall stability and durability. By loading this integrated embodiment on various types of transportation equipment, such as trucks, trailers or special transport vehicles, the rapid transportation and flexible transfer of this embodiment can be greatly facilitated. Whether it is the narrow streets in the city center or the complex terrain in remote areas, it can be easily handled and quickly reach the target location.

[0071] This highly integrated design and convenient transportation method enable this embodiment to reach the sewage treatment site in the shortest time and quickly put into operation. This rapid response and efficient processing capabilities greatly improve the work efficiency of this embodiment, greatly shorten the sewage treatment cycle, and effectively control the treatment cost.

[0072] In addition, this integrated and modular design concept also provides users with great convenience and flexibility. Users can choose components with different configurations and functions for integration according to actual usage needs to meet the sewage treatment requirements in specific scenarios. At the same time, since all components are integrated on the same base, daily maintenance and maintenance work has become simpler and more efficient, further reducing operating costs and improving user experience.

[0073] like Figure 4 As shown, an embodiment of the present invention further provides a sewage treatment method, which is used in the quick-start movable sewage treatment device in the above embodiment, and the sewage treatment method includes:

[0074] First, the water-containing sludge stored in the sludge storage tank 100 is pumped into the mixing reaction tank 200 by the sludge pump 110 .

[0075] Then, the sewage to be treated is continuously introduced into the mixing reaction tank 200 through the water inlet pipe 201, and the water-containing sludge in the crushing tank 210 is crushed by the crushing component 211 and mixed with the sewage to be treated. The crushing component 211 not only quickly decomposes the activated sludge and flocs in the water-containing sludge into smaller flocs, but also significantly increases the surface area of ​​contact between the activated sludge and the sewage. In this way, the microorganisms on the surface layer of the fine flocs of the activated sludge can more fully contact the pollutants in the sewage, thereby participating in the degradation process of the pollutants in the sewage to the greatest extent, and significantly improving the degradation efficiency.

[0076] The sewage and sludge in the crushing tank 210 will continue to flow into the stirring tank 220, and the fine flocs of the sludge will be further mixed with the preliminarily mixed sewage through the stirring component 221, thereby further improving the degradation rate of pollutants in the sewage.

[0077] During this period, the carbon source equipment is started, and the carbon source is added to the crushing tank 210 through the carbon inlet pipe 202, so that the microorganisms in the sludge in the crushing tank 210 are fully in contact with the carbon source to meet the growth and metabolic needs of the microorganisms in the activated sludge in the crushing tank 210, thereby allowing the dominant bacteria species among the microorganisms that are adapted to sewage treatment to proliferate rapidly.

[0078] After the sewage is mixed with the broken fine activated sludge flocs, it will smoothly enter the bottom of the biological filter 300. In the biological filter 300, the sewage flows through the filter layer 310 from bottom to top. Since the activated sludge flocs participating in the pollutant degradation reaction are small, they can easily penetrate the filter layer 310. In this process, the fine activated sludge flocs can fully contact and adhere to the surface of the filter material, so that a large number of activated sludge flocs and microorganisms can be quickly adhered to the surface of the filter material. These activated sludge film layers attached to the surface of the filter material and the microorganisms inside them work together to efficiently realize the rapid start-up of the biological filter 300, while satisfying the degradation of chemical oxygen demand (COD), thereby significantly improving the degradation rate of pollutants in sewage.

[0079] At the same time, the aeration equipment 330 is activated to evenly aerate the bottom of the biological filter 300, so that the microorganisms are in a dissolved oxygen state, and the microorganisms are in suitable conditions, which promotes the rapid reproduction of the microorganisms, thereby achieving the rapid startup of the present invention to a full load state, realizing the screening and cultivation of microbial strains, and achieving efficient treatment of sewage, thereby significantly improving the overall treatment efficiency of the biological filter 300.

[0080] The sewage filtered by the biofilter 300 will continue to overflow to the bottom of the sedimentation tank 400. In the sedimentation tank 400, the activated sludge flocs in the sewage are deposited to the bottom of the tank due to gravity. This step effectively achieves solid-liquid separation and further purifies the water quality.

[0081] Subsequently, as the water level in the sedimentation tank 400 can overflow into the bottom of the outlet tank 500. As the water level in the outlet tank 500 gradually rises and eventually submerges the drain pipe 520, the treated sewage can be discharged from the drain pipe 520, achieving standard discharge of sewage.

[0082] At the same time, due to the integrated design of the present invention, rapid transportation and deployment to sewage treatment sites can be achieved, and combined with the above-mentioned sewage treatment method, rapid removal of pollutants in the sewage to be treated can be achieved.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0084] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A quick-start mobile sewage treatment device, characterized in that: It includes a sludge storage tank (100), a mixing reaction tank (200), a biological filter tank (300), a sedimentation tank (400) and a water outlet tank (500); The sludge storage tank (100) is used to store water-containing sludge, and a sludge pump (110) is provided in the sludge storage tank (100); The mixing reaction tank (200) is externally connected to a water inlet pipe (201), and the sewage to be treated is introduced into the mixing reaction tank (200) through the water inlet pipe (201); the mixing reaction tank (200) comprises a crushing tank (210) and a stirring tank (220); the bottoms of the crushing tank (210) and the stirring tank (220) are interconnected; a crushing component (211) is provided in the crushing tank (210), and a stirring component (221) is provided in the stirring tank (220); the mud outlet pipe (111) of the sludge pump (110) is connected to the top of the crushing tank (210); The biological filter (300) is connected to the mixing reaction tank (200) via a first water passage (320); a sedimentation assembly (420) is provided in the sedimentation tank (400), and the biological filter (300) is connected to the sedimentation tank (400) via a second water passage (410); and a third water passage (510) is provided between the outlet tank (500) and the sedimentation tank (400).

2. The quick-start mobile sewage treatment device according to claim 1 is characterized in that: The top end of the crushing pool (210) is connected to a carbon inlet pipe (202), the carbon inlet pipe (202) is connected to a carbon source device, and the carbon inlet pipe (202) is used to fill carbon into the crushing pool (210).

3. The quick-start mobile sewage treatment device according to claim 1 is characterized in that: A filter layer (310) is provided in the biofilter (300), one end of the first water passage (320) is connected to the top of the mixing reaction tank (200), and the other end of the first water passage (320) is connected to the bottom of the biofilter (300).

4. The quick-start mobile sewage treatment device according to claim 3 is characterized in that: The bottom of the biological filter (300) is connected to an aeration device (330), and the aeration device (330) is externally connected to a diversion frame (331). The diversion frame (331) is located at the bottom of the biological filter (300), and a plurality of air outlets are evenly distributed on the diversion frame (331).

5. The quick-start mobile sewage treatment device according to claim 3 is characterized in that: A first liquid level meter (203) is provided in the mixing reaction tank (200), and a second liquid level meter (301) is provided in the biofilter tank (300).

6. The quick-start mobile sewage treatment device according to claim 3 is characterized in that: A sedimentation assembly (420) is provided in the sedimentation tank (400), one end of the second water passage (410) is connected to the top of the biofilter (300), and the other end of the second water passage (410) is connected to the bottom of the sedimentation tank (400).

7. The quick-start mobile sewage treatment device according to claim 6 is characterized in that: One end of the third water passage (510) is connected to the top of the sedimentation tank (400), and the other end of the third water passage (510) is connected to the bottom of the outlet tank (500). A drainage pipe (520) is provided on the side wall of the outlet tank (500).

8. The quick-start mobile sewage treatment device according to claim 7, characterized in that: A backwash pump (530) is provided in the water outlet tank (500), and a water outlet pipe (531) of the backwash pump (530) is connected to the top of the biological filter tank (300); a return pipe (540) is externally connected to the bottom of the biological filter tank (300), and the end of the return pipe (540) away from the biological filter tank (300) is connected to the sludge storage tank (100).

9. The quick-start mobile sewage treatment device according to claim 8, characterized in that: A third liquid level gauge (101) is provided in the sludge storage tank (100); a sludge discharge pipe (542) is provided at the end of the return pipe (540) close to the biological filter tank (300); a sludge discharge port (543) is provided on the return pipe (540); a pipeline pump (541) is provided on the return pipe (540); and the pipeline pump (541) is located between the sludge discharge port (543) and the sludge discharge pipe (542).

10. A method for treating sewage, characterized in that: The quick-start mobile sewage treatment device used in any one of claims 1 to 9, wherein the sewage treatment method comprises: Pumping the water-containing sludge in the sludge storage tank (100) into the crushing tank (210) of the mixing reaction tank (200); The sewage to be treated is input into the mixing reaction tank (200), and the water-containing sludge in the crushing tank (210) is crushed by the crushing component (211) and mixed with the sewage to be treated; The fine flocs of the sludge are further mixed with the sewage to be treated; Filling carbon into the crushing tank (210) so that the microorganisms in the sludge in the crushing tank (210) are fully in contact with the carbon source, and the dominant bacteria species among the microorganisms that are adapted to sewage treatment are multiplied; After the sewage is mixed with the broken fine activated sludge flocs, the bottom of the biofilter (300) is evenly aerated to keep the microorganisms in a dissolved oxygen state; The activated sludge flocs in the sewage in the sedimentation tank are subjected to sedimentation treatment.

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