MBR membrane sewage treatment equipment

Abstract

This utility model discloses an MBR membrane wastewater treatment device, relating to the field of water treatment equipment technology. It includes a pre-filtration tank, a top cover, and a treatment tank. Both sides of the treatment tank are connected to the pre-filtration tank. A drain pipe is installed at the bottom of the pre-filtration tank. The drain pipe is a three-way pipe structure, with electrically controlled valves installed at the connections between its main section and both ends. One end of the drain pipe is connected to the treatment tank, and the other end is connected to an external collection pipe. In this utility model, the two sets of pre-filtration tanks ensure sufficient filtration and sedimentation of wastewater in its initial stage, reducing the processing pressure on subsequent processes. Wastewater is introduced into the pre-filtration tank through the inlet pipe of the collection plate. When the wastewater passes through the filter plates and the filter holes of the plugs, impurities are blocked, while the wastewater enters the drain pipe through the filter holes.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, specifically to an MBR membrane wastewater treatment device. Background Technology

[0002] MBR (Membrane Bioreactor) wastewater treatment equipment is a new type of wastewater treatment system that combines membrane separation technology with biological treatment technology. Its main objectives include: Highly efficient pollutant removal: It effectively removes suspended solids, organic matter, ammonia nitrogen, phosphorus, and other pollutants from wastewater, achieving effluent quality that meets or exceeds that of traditional activated sludge processes, and can even meet reclaimed water standards. Improved treatment efficiency: Membrane separation technology can replace traditional secondary sedimentation tanks, achieving complete separation of hydraulic retention time (HRT) and sludge retention time (SRT), shortening treatment time and improving treatment efficiency. Saved floor space: Since there is no need for a secondary sedimentation tank, the MBR system requires less floor space, making it particularly suitable for areas with limited land resources. Stable and reliable operation: The membrane modules effectively retain microorganisms, maintaining a high microbial concentration within the reactor, improving the system's resistance to shock loads, and ensuring more stable and reliable operation. High degree of automation: The MBR system is easy to automate, reducing manual operation intensity and improving operational management. Improved sludge characteristics: The MBR system produces less residual sludge, and the sludge has good settling properties, facilitating subsequent treatment and disposal.

[0003] MBR membrane wastewater treatment equipment mainly consists of three parts: a pretreatment unit, a biological reactor unit, and a membrane separation unit. The pretreatment unit performs preliminary treatment of the wastewater, removing large particles, floating solids, and some organic matter, protecting the subsequent biological treatment unit and membrane modules. Common pretreatment methods include screens, grit chambers, and primary sedimentation tanks. The biological reactor unit is the core of the MBR system. Utilizing activated sludge or other biological treatment processes, under aerobic or anaerobic conditions, it decomposes organic matter in wastewater into carbon dioxide, water, and inorganic substances through the metabolic action of microorganisms. Commonly used bioreactors include aeration tanks, A / O tanks, and A / O tanks. 2 / O pool, etc. Membrane separation unit: Utilizing the physical sieving effect of the membrane, suspended solids, bacteria, viruses, and other large molecules in the mixture treated by the bioreactor are retained on one side of the membrane, while the purified water permeates through the membrane to become the treated effluent. Commonly used membrane modules include hollow fiber membranes, flat sheet membranes, and tubular membranes.

[0004] While the above methods can complete water treatment operations, they also have drawbacks: because the overall equipment relies too heavily on the filtration effect of the membrane, the membrane needs to be cleaned by backwashing regularly. In particular, some wastewater that has not been sufficiently settled will aggravate the clogging of the membrane, which is not conducive to actual operation.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide an MBR membrane wastewater treatment device to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides an MBR membrane wastewater treatment device, including a pre-filtration tank, a top cover, and a treatment tank;

[0008] Both sides of the treatment box are connected to the pre-filter box. A drain pipe is installed at the bottom of the pre-filter box. The drain pipe is a T-shaped pipe with an electrically controlled valve installed at the connection between the main pipe and both sides. One end of the drain pipe is connected to the treatment box, and the other end is connected to an external collection pipe.

[0009] In one embodiment, a collection plate is installed on the top of the pre-filtration box. The collection plate is an inverted frustum-shaped structure with a narrow bottom and a wide top. An inlet pipe is installed on the rear end face of the collection plate, and a top cover is installed on the top of the collection plate.

[0010] In one embodiment, a filter plate is installed on the inner top surface of the pre-filter box. The filter plate is an inverted frustum-shaped structure with filter holes evenly distributed on its four walls.

[0011] In one embodiment, a mounting bracket is installed on the top surface of the top cover, a power box is installed on the top surface of the mounting bracket, the power box is electrically connected to an electric actuator on the bottom surface of the mounting bracket, a plug is installed at the bottom of the electric actuator, filter holes are evenly distributed around the plug, and the plug blocks the bottom opening of the filter plate when in operation, and a cleaning port is installed on the rear end face of the top cover.

[0012] In one embodiment, the processing box has connection holes on both sides, a filter plate is installed above the connection holes, a gap is left between the filter plate and the inner bottom surface of the processing box, and a liquid extraction pipe is installed above the rear end of the processing box.

[0013] In one embodiment, a filter membrane assembly is installed above the filter screen plate, and a distance is left between the filter membrane assembly and the filter screen plate.

[0014] In one embodiment, a processing port is installed on the top surface of the processing box, and a top cover is installed on the processing port.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up two sets of pre-filtration boxes, the sewage undergoes sufficient filtration and sedimentation in the initial stage, reducing the processing pressure on subsequent processes. The sewage is introduced into the pre-filtration box through the inlet pipe of the collection plate. When the sewage passes through the filter holes of the filter plate and the plug, the impurities are blocked, while the sewage enters the drain pipe through the filter holes. When cleaning is required, the electric control valve connecting the drain pipe and the treatment box is closed, the electric control valve at the other end of the drain pipe is opened, the electric push rod is activated, the plug is moved down, the bottom opening of the filter plate is opened, and the impurities attached to the filter plate and the plug are washed by manually holding a high-pressure water gun through the cleaning port at the rear end of the top cover, so that the impurities are discharged through the drain pipe.

[0017] 2. The pre-filtered wastewater is introduced into the treatment tank through the drain pipe. After being blocked by the filter screen, most of the impurities are removed. The wastewater then passes through the filter membrane again, forming a transitional sedimentation zone between the filter screen and the bottom of the treatment tank. This improves the treatment effect on small impurities. The inside of the treatment tank is rinsed manually with a high-pressure water gun. The double-sided electric control valves of the drain pipe are opened, allowing the sedimented impurities in the sedimentation zone to be discharged from the other end of the drain pipe through the water flow, simplifying the cleaning process. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the overall structure of an MBR membrane wastewater treatment device.

[0019] Fig. 2 A detailed disassembled diagram of the components of an MBR membrane wastewater treatment device;

[0020] Fig. 3 This is a detailed diagram of the internal structure of the treatment tank in an MBR membrane wastewater treatment device.

[0021] In the diagram: 1. Pre-filtration box; 11. Collection plate; 12. Drain pipe; 2. Top cover; 21. Mounting bracket; 22. Electric actuator; 23. Plug; 3. Processing box; 31. Connection hole; 32. Liquid extraction pipe; 33. Filter screen plate; 34. Filter membrane assembly; 4. Filter plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figs. 1-3 This utility model provides a technical solution: including a pre-filter box 1, a top cover 2, and a processing box 3;

[0024] like Figs. 1-2 As shown, both sides of the treatment tank 3 are connected to the pre-filter tank 1. A drain pipe 12 is installed at the bottom of the pre-filter tank 1. The drain pipe 12 is a three-way pipe structure. An electric control valve is installed at the connection between the main pipe and both ends. One end of the drain pipe 12 is connected to the treatment tank 3, and the other end is connected to an external collection pipe. With the setting of two sets of pre-filter tanks 1, the sewage undergoes sufficient filtration and sedimentation in the initial stage, reducing the treatment pressure on subsequent processes.

[0025] Preferably, in one embodiment, such as Fig. 2 As shown, a collection plate 11 is installed on the top of the pre-filtration box 1. The collection plate 11 is an inverted frustum-shaped structure with a narrow opening at the bottom and a wide opening at the top. An inlet pipe is installed on the rear end face of the collection plate 11, and a top cover 2 is installed on the top of the collection plate 11.

[0026] Preferably, in one embodiment, such as Fig. 2 As shown, a filter plate 4 is installed on the inner top surface of the pre-filter box 1. The filter plate 4 is an inverted frustum-shaped structure with filter holes evenly distributed on its four walls.

[0027] Preferably, in one embodiment, such as Fig. 2 As shown, a mounting bracket 21 is installed on the top surface of the top cover 2, and a power box is installed on the top surface of the mounting bracket 21. The power box is electrically connected to an electric push rod 22 on the bottom surface of the mounting bracket 21. A plug 23 is installed at the bottom of the electric push rod 22. Filter holes are evenly distributed around the perimeter of the plug 23. In the working state, the plug 23 blocks the bottom opening of the filter plate 4. A cleaning port is installed on the rear end face of the top cover 2. During operation, wastewater is introduced into the pre-filtration box 1 through the liquid inlet pipe of the collection plate 11. When the wastewater passes through the filter holes of the filter plate 4 and the plug 23, the impurities will be blocked, while the wastewater will enter the drain pipe 12 through the filter holes. When cleaning is required, close the electric control valve connecting the drain pipe 12 and the treatment box 3, open the electric control valve at the other end of the drain pipe 12, start the electric push rod 22, drive the plug 23 down, open the bottom opening of the filter plate 4, and manually use a high-pressure water gun to wash the impurities attached to the filter plate 4 and the plug 23 through the cleaning port at the rear end of the top cover 2, so that the impurities are discharged through the drain pipe 12.

[0028] Preferably, in one embodiment, such as Fig. 3 As shown, the processing box 3 has connection holes 31 on both sides, a filter plate 33 is installed above the connection holes 31, a gap is left between the filter plate 33 and the inner bottom surface of the processing box 3, and a liquid extraction pipe 32 is installed above the rear end of the processing box 3.

[0029] Preferably, in one embodiment, such as Fig. 3As shown, a filter membrane assembly 34 is installed above the filter screen plate 33. There is a distance between the filter membrane assembly 34 and the filter screen plate 33. During operation, the pre-filtered sewage is introduced into the treatment tank 3 through the drain pipe 12. After the sewage is blocked by the filter screen plate 33 and most of the impurities are isolated, it is filtered again by the filter membrane assembly 34. A transitional sedimentation zone is formed between the filter screen plate 33 and the bottom surface of the treatment tank 3, which improves the treatment effect of small impurities.

[0030] Preferably, in one embodiment, the top surface of the treatment box 3 is equipped with a treatment port, and the treatment port is equipped with a top cover. The inside of the treatment box 3 is rinsed by manually holding a high-pressure water gun, and the double-sided electric control valves of the drain pipe 12 are opened, so that the sediment in the sedimentation zone is discharged from the other end of the drain pipe 12 through the water flow, which simplifies the cleaning process.

[0031] Working principle:

[0032] Wastewater is introduced into the pre-filtration tank 1 through the inlet pipe of the collection plate 11. When the wastewater passes through the filter holes of the filter plate 4 and the plug 23, impurities are blocked, while the wastewater enters the drain pipe 12 through the filter holes. When cleaning is required, the electric control valve connecting the drain pipe 12 and the treatment tank 3 is closed, the electric control valve at the other end of the drain pipe 12 is opened, the electric push rod 22 is activated, and the plug 23 is moved down to open the bottom opening of the filter plate 4. The impurities attached to the filter plate 4 and the plug 23 are washed by manually holding a high-pressure water gun through the cleaning port at the rear end of the top cover 2, so that the impurities are discharged through the drain pipe 12. The pre-filtered wastewater is introduced into the treatment tank 3 through the drain pipe 12. After being blocked by the filter screen plate 33, most of the impurities are isolated, and the wastewater is filtered again by the filter membrane group 34. A transitional sedimentation zone is formed between the filter screen plate 33 and the bottom surface of the treatment tank 3, which improves the treatment effect of small impurities.

Claims

1. An MBR membrane wastewater treatment device, comprising, characterized in that: Pre-filter box (1), top cover (2), processing box (3); Both sides of the treatment box (3) are connected to the pre-filter box (1). A drain pipe (12) is installed at the bottom of the pre-filter box (1). The drain pipe (12) is a three-way pipe structure. An electric control valve is installed at the connection between the main pipe section and the two ends. One end of the drain pipe (12) is connected to the treatment box (3), and the other end is connected to the external collection pipe.

2. The MBR membrane wastewater treatment equipment as described in claim 1, characterized in that: The top of the pre-filter box (1) is equipped with a collection plate (11). The collection plate (11) is an inverted frustum-shaped structure with a narrow opening at the bottom and a wide opening at the top. An inlet pipe is installed on the rear end face of the collection plate (11), and a top cover (2) is installed on the top of the collection plate (11).

3. The MBR membrane wastewater treatment equipment as described in claim 2, characterized in that: The pre-filter box (1) has a filter plate (4) installed on its inner top surface. The filter plate (4) is an inverted frustum-shaped structure with filter holes evenly distributed on its four walls.

4. The MBR membrane wastewater treatment equipment as described in claim 2, characterized in that: The top surface of the top cover (2) is equipped with a mounting bracket (21), and the top surface of the mounting bracket (21) is equipped with a power box. The power box is electrically connected to the electric push rod (22) on the bottom surface of the mounting bracket (21). The bottom of the electric push rod (22) is equipped with a plug (23). The plug (23) has filter holes evenly distributed around its four sides. When the plug (23) is in operation, it blocks the bottom opening of the filter plate (4). The rear end face of the top cover (2) is equipped with a cleaning port.

5. The MBR membrane wastewater treatment equipment as described in claim 1, characterized in that: The processing box (3) has connection holes (31) on both sides. A filter plate (33) is installed above the connection holes (31). There is a gap between the filter plate (33) and the inner bottom surface of the processing box (3). A liquid extraction pipe (32) is installed above the rear end of the processing box (3).

6. The MBR membrane wastewater treatment equipment as described in claim 5, characterized in that: A filter membrane assembly is installed above the filter screen plate (33), and a distance is left between the filter membrane assembly (34) and the filter screen plate (33).

7. The MBR membrane wastewater treatment equipment as described in claim 5, characterized in that: The processing box (3) has a processing port installed on its top surface, and the processing port is covered with a top cover (2).

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