An improved membrane aerated biofilm reactor

Abstract

The application belongs to the technical field of water environment treatment, and particularly relates to an improved membrane aeration biofilm reactor, which comprises support rods one and two, the support rods one and two are horizontally arranged, the middle parts of the support rods one and two are provided with insertion holes, pipe joints one are arranged in the insertion holes, the end parts of the pipe joints one are provided with sealing bearings one, the inner parts of the sealing bearings one are fixedly connected with air guide pipes one located at the outer sides of the support rods one and two, and the inner parts of the air guide pipes one are slidably arranged with air guide pipes two. The biofilm group can be adjusted in angle and shallow depth to adapt to the actual conditions of water areas, the biofilm group is finally fixed through the sliding blocks one and two, the applicability of the biofilm group is improved, and the material loss is reduced to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of water environment treatment technology, and in particular to an improved membrane aeration biofilm reactor. Background Technology

[0002] A membrane aeration biofilm reactor is a type of membrane bioreactor that uses a dense, permeable membrane for aeration, eliminating visible air bubbles in the water. Air (or pure oxygen) flows within the hollow fiber membrane or flat sheet membrane, which is immersed in water. Driven by the partial pressure difference across the membrane, the air inside the membrane diffuses through the micropores on the membrane wall into the water outside the membrane. At the same time, the permeable membrane also acts as a carrier, allowing the attached biofilm to fully contact the wastewater. Organic matter in the wastewater is adsorbed and oxidized by the biofilm, achieving the effect of purifying the wastewater.

[0003] Under the guiding principle of strengthening ecological and environmental protection, the Fifth Engineering Company of China Railway 10th Bureau Group proposed a construction method for the floating operation of membrane modules in a MABR aeration contact oxidation system. This method was successfully implemented through a case study in the Dengbeiqiao Wetland Phase I aeration pond of the Eryuan County Wetland Improvement Project in Yunnan Province. This method successfully avoids the use of large machinery, significantly reducing project costs, increasing overall construction speed, and preventing mechanical damage to the membrane modules and environmental pollution during construction. It fully utilizes the principle of buoyancy, calculating the volume of the float based on the weight of the MABR membrane module using buoyancy principles. The float is temporarily connected to the membrane module, using its buoyancy to float the membrane module on the water surface. Then, a vessel is used for navigation to a fixed location to remove the float and install the membrane module.

[0004] However, once the membrane module is installed, its depth and angle cannot be adjusted. Furthermore, the depth and shape of water bodies vary, so the membrane module may not be compatible with the actual conditions of the water body after installation. In addition, the related connecting parts of the membrane module are pre-manufactured. If the membrane module does not match the actual water body after installation, the staff will need to customize the relevant supporting parts according to the specific size requirements. This not only results in low applicability of the membrane module, but may also lead to increased workload and material waste.

[0005] To address the above problems, we propose an improved membrane aeration biofilm reactor. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing an improved membrane aeration biofilm reactor.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an improved membrane aeration biofilm reactor, comprising a support rod one and a support rod two, wherein the support rod one and the support rod two are horizontally arranged, and each support rod one and the support rod two have an insertion hole in their middle, into which a pipe connector one is inserted. Each pipe connector one has a sealing bearing one at its end, and an air guide pipe one located outside the support rod one and the support rod two is fixedly connected inside the sealing bearing one. An air guide pipe two is slidably inserted inside each air guide pipe one. A connecting rod one is fixedly connected to the right end of each support rod one and the support rod two, and a connecting rod two is fixedly connected to the left end of each support rod one and the support rod two. Both connecting rod one and connecting rod two are located above support rod one and support rod two. Two connecting rings are fixed on each of the connecting rod one and connecting rod two. Support rod three is fixedly connected to the lower wall of each of the support rod one and support rod two. Multiple positioning holes are opened on each of the support rod three. Adjustment mechanism one is provided between each of the two air guide tubes one and the corresponding support rod one and support rod two. Sealing bearing two is fixedly sleeved at the end of each of the two air guide tubes two. Pipe joint two is fixedly sleeved on the outer wall of each sealing bearing two. Connecting pipe is fixedly connected to each pipe joint two. A biofilm group is provided between the two connecting pipes. Adjustment mechanism two is provided between each air guide tube two and the corresponding connecting pipe.

[0008] In the above-mentioned improved membrane aeration biofilm reactor, the adjustment mechanism 1 includes a fixing plate 1 fixed on support rod 1 and support rod 2 respectively, an elastic sheet 1 fixed on the fixing plate 1, a turntable 1 located on one side of the elastic sheet 1 fixedly sleeved on the outer wall of the air guide pipe 1, a plurality of evenly distributed limiting blocks 1 are provided on the outer edge of the turntable 1, and a fastening mechanism 1 is provided on the fixing plate 1.

[0009] In the above-mentioned improved membrane aeration biofilm reactor, the fastening mechanism includes a support frame fixed to one side of a fixed plate. The support frame has a threaded hole. A slider is slidably disposed on the elastic sheet. A bearing is embedded in the left wall of the slider. A threaded rod inserted into the threaded hole is fixedly connected to the inner wall of the bearing. A knob is fixedly connected to the outer end of the threaded rod.

[0010] In the above-mentioned improved membrane aeration biofilm reactor, the second adjustment mechanism includes a second fixing plate fixed to the outer wall of the connecting pipe, a second elastic sheet fixedly disposed on the second fixing plate, a second turntable located on one side of the second elastic sheet fixedly sleeved on the outer wall of the second air guide pipe, a plurality of evenly distributed second limiting blocks are fixed on the outer edge of the second turntable, and a second fastening mechanism is disposed on the second fixing plate.

[0011] In the above-mentioned improved membrane aeration biofilm reactor, the fastening mechanism 2 includes a support frame 2 fixed to one side of the fixed plate 2, the support frame 2 is provided with a threaded hole 2, the elastic sheet 2 is slidably provided with a slider 2, the left side wall of the slider 2 is fixedly embedded with a bearing 2, the inner wall of the bearing 2 is fixedly connected with a threaded rod 2 inserted into the threaded hole 2, and the outer end of the threaded rod 2 is fixedly connected with a knob 2.

[0012] In the aforementioned improved membrane aeration biofilm reactor, a float plate is provided on the lower side of both of the support rods three.

[0013] In the above-mentioned improved membrane aeration biofilm reactor, a rubber ring is fixedly sleeved on the outer wall of the inner end of the second air guide tube 5, and the rubber ring is in compression contact with the inner wall of the first air guide tube 4.

[0014] Compared with existing technologies, the advantages of this improved membrane aeration biofilm reactor are:

[0015] 1. The biofilm assembly is suspended in water by a float plate on the lower side of the support rod three. An oxygen environment is provided to the biofilm assembly through air pipe one and air pipe two. When air pipe one is rotated, turntable one rotates accordingly. The upper limit block one of turntable one is squeezed against the apex of elastic plate one, causing elastic plate one to deform. The apex of elastic plate one is inserted into the gap of limit block one, so that turntable one can be fixed after it stops. That is, the angle of air pipe one is adjusted. After the angle of air pipe one is adjusted, tighten knob one, so that threaded rod one pushes slider one to fit against the side wall of elastic plate one, limiting elastic plate one. Therefore, elastic plate one will not be able to deform elastically, turntable one cannot rotate, and thus air pipe one is finally stabilized. The same method can be used to adjust the angle of biofilm assembly.

[0016] 2. The second air tube is slidably inserted into the first air tube. A rubber ring is fixedly sleeved on the outer wall of the inner end of the second air tube. The rubber ring is squeezed against the inner wall of the first air tube, creating friction. The friction is used to fix the second air tube relative to the first air tube. At the same time, when the second air tube is pulled forcefully, it can slide relative to the first air tube, thereby adjusting the extension length of the second air tube and thus adjusting the shallow depth of the biofilm group.

[0017] In summary, this invention adapts to the actual conditions of the water area by adjusting the angle and shallow depth of the biofilm assembly, and achieves final fixation of the biofilm assembly through slider one and slider two, thereby improving the applicability of the biofilm assembly and reducing material consumption to a certain extent. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of an improved membrane aeration biofilm reactor proposed in this invention;

[0019] Figure 2 for Figure 1 Enlarged view of section A;

[0020] Figure 3 for Figure 2 Enlarged view of section B;

[0021] Figure 4 This is the second schematic diagram of the structure of an improved membrane aeration biofilm reactor proposed in this invention;

[0022] Figure 5 This is a front view of the structure of an improved membrane aeration biofilm reactor proposed in this invention.

[0023] In the diagram: 1. Support rod one; 2. Pipe connector one; 3. Sealed bearing one; 4. Air guide pipe one; 5. Air guide pipe two; 6. Connecting rod one; 7. Connecting rod two; 8. Connecting ring; 9. Support rod three; 10. Positioning hole; 11. Pipe connector two; 12. Connecting pipe; 13. Biofilm assembly; 14. Fixing plate one; 15. Elastic sheet one; 16. Turntable one; 17. Limiting block one; 18. Support frame one; 19. Slider one; 20. Threaded rod one; 21. Knob one; 22. Fixing plate two; 23. Elastic sheet two; 24. Turntable two; 25. Limiting block two; 26. Support frame two; 27. Slider two; 28. Threaded rod two; 29. ​​Knob two. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Reference Figures 1-5 An improved membrane aeration biofilm reactor includes a support rod 1 and a support rod 2, which are horizontally arranged. Each support rod 1 and support rod 2 has an insertion hole in its middle, penetrating the front and rear outer walls of the support rods 1 and 2. A pipe connector 2 is inserted into each insertion hole. A sealing bearing 3 is provided at the end of each pipe connector 2. The other end of each pipe connector 2 is used to connect to an air supply pipe. An air guide pipe 4 located outside the support rods 1 and 2 is fixedly connected inside the sealing bearing 3. An air guide pipe 2 5 is slidably inserted inside each air guide pipe 4. A rubber ring is fixedly sleeved on the outer wall of the inner end of the air guide pipe 2 5. The rubber ring is in contact with the inner wall of the air guide pipe 4, generating friction. The rubber ring also serves to seal the connection between the air guide pipe 2 5 and the air guide pipe 4.

[0026] The right ends of support rod 1 and support rod 2 are fixedly connected to connecting rod 6, and the left ends of support rod 1 and support rod 2 are fixedly connected to connecting rod 2. Connecting rod 6 and connecting rod 2 are both located on the upper side of support rod 1 and support rod 2. Two connecting rings 8 are fixed on both connecting rod 6 and connecting rod 2. The connecting rings 8 are used to fix the connecting rope. This invention is one of the components of a biofilm reactor. Multiple components are connected in series by connecting ropes to form the entire biofilm reactor.

[0027] Support rod 3 9 is fixedly connected to the lower wall of support rod 1 and support rod 2. Support rod 3 9 is provided with multiple positioning holes 10. The lower side of the two support rods 3 9 is fixedly connected to a float plate through the positioning holes 10. The float plate provides independent buoyancy for the biofilm reactor assembly.

[0028] Two air ducts 4 are respectively equipped with adjustment mechanisms 1 between them and the corresponding support rods 1 and 2. The ends of the two air ducts 5 are fixedly fitted with sealed bearings 2. The outer walls of the sealed bearings 2 are fixedly fitted with pipe joints 2 11. Each pipe joint 2 11 is fixedly connected to a connecting pipe 12. The pipe joint 2 11 is connected to the connecting pipe 12. A biofilm assembly 13 is provided between the two connecting pipes 12. Adjustment mechanisms 2 are provided between the air ducts 5 and the corresponding connecting pipes 12.

[0029] The adjustment mechanism includes a fixing plate 14 fixed to support rod 1 and support rod 2 respectively. An elastic sheet 15 is fixed on the fixing plate 14. The elastic sheet 15 is U-shaped and the top corner of the U-shape of the elastic sheet 15 is horizontally facing to the right. A turntable 16 located on one side of the elastic sheet 15 is fixedly sleeved on the outer wall of the air pipe 4. A plurality of evenly distributed limiting blocks 17 are provided on the outer edge of the turntable 16. The top corner of the elastic sheet 15 is displaced at the gap of the limiting block 17. The turntable 16 is fixed when stationary by the engagement between the top corner of the elastic sheet 15 and the gap of the limiting block 17.

[0030] A fastening mechanism is provided on the fixed plate 14. The fastening mechanism includes a support frame 18 fixed to one side of the fixed plate 14. The support frame 18 has a threaded hole. A slider 19 is slidably disposed on the elastic plate 15. The slider 19 is adapted to the U-shaped inner wall of the elastic plate 15. A bearing is embedded in the left wall of the slider 19. A threaded rod 20 inserted into the threaded hole is fixedly connected to the inner wall of the bearing. A knob 21 is fixedly connected to the outer end of the threaded rod 20. Rotating the knob 21 causes the threaded rod 20 to push the slider 19 toward the elastic plate 15. When the slider 19 and the elastic plate 15 are in contact, the elastic plate 15 will be restricted and unable to produce elastic deformation.

[0031] The second adjustment mechanism includes a second fixing plate 22 fixed to the outer wall of the connecting pipe 12. An elastic sheet 23 is fixedly installed on the second fixing plate 22. The elastic sheet 23 is also U-shaped, and the apex of the U-shape of the elastic sheet 23 faces to the right. A turntable 24 located on one side of the elastic sheet 23 is fixedly sleeved on the outer wall of the second air pipe 5. Multiple evenly distributed limit blocks 25 are fixed on the outer edge of the turntable 24. The apex of the elastic sheet 23 is located at the gap of the limit blocks 25. The turntable 24 is fixed when stationary by the engagement between the apex of the elastic sheet 23 and the gap of the limit blocks 25.

[0032] A fastening mechanism 2 is provided on the fixed plate 22. The fastening mechanism 2 includes a support frame 26 fixed to one side of the fixed plate 22. The support frame 26 is provided with a threaded hole 2. A slider 27 is slidably provided on the elastic plate 23. The slider 27 is adapted to the U-shaped inner wall of the elastic plate 23. A bearing 2 is fixedly embedded on the left side wall of the slider 27. A threaded rod 28 inserted into the threaded hole 2 is fixedly connected to the inner wall of the bearing 2. A knob 29 is fixedly connected to the outer end of the threaded rod 28. Rotating the knob 29 causes the threaded rod 28 to push the slider 27 toward the elastic plate 23. When the slider 27 and the elastic plate 23 are in contact, the elastic plate 23 will be restricted and unable to produce elastic deformation.

[0033] The biofilm assembly 13 is suspended in water by a float plate on the lower side of the support rod 3 9. An oxygen environment is provided to the biofilm assembly 13 through the air duct 1 4 and the air duct 2 5. When the air duct 1 4 is rotated, the turntable 16 rotates accordingly. The upper limit block 17 of the turntable 1 16 is squeezed against the apex of the elastic plate 15, causing the elastic plate 15 to deform. The apex of the elastic plate 15 is inserted into the gap of the limit block 17, so that the turntable 16 can be fixed after it stops. That is, the angle of the air duct 1 4 is adjusted. After the angle of the air duct 1 4 is adjusted, the knob 21 is tightened, so that the threaded rod 20 pushes the slider 19 to fit against the side wall of the elastic plate 15, limiting the elastic plate 15. Therefore, the elastic plate 15 will not be able to deform elastically, the turntable 16 cannot rotate, and the air duct 1 4 is finally stabilized. The same method can be used to adjust the angle of the biofilm assembly 13.

[0034] The second air tube 5 is slidably inserted into the first air tube 4. A rubber ring is fixedly sleeved on the outer wall of the inner end of the second air tube 5. The rubber ring is squeezed against the inner wall of the first air tube 4, resulting in friction. The friction is used to fix the second air tube 5 relative to the first air tube 4. At the same time, when the second air tube 5 is pulled forcefully, it can slide relative to the first air tube 4, thereby adjusting the extension length of the second air tube 5. This allows for the adjustment of the shallow depth of the biofilm group 13 to adapt to the actual conditions of the water area and improve the applicability of the biofilm group 13.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An improved membrane aerated biofilm reactor comprising a support rod one (1) and a support rod two, characterized in that, The support rod one (1) and the support rod two are horizontally arranged, the middle part of the support rod one (1) and the support rod two is provided with a socket, the socket is provided with a pipe joint one (2), the end of the pipe joint one (2) is provided with a sealing bearing one (3), the inner part of the sealing bearing one (3) is fixedly connected with a gas guide pipe one (4) on the outer side of the support rod one (1) and the support rod two, the inner part of the gas guide pipe one (4) is slidably provided with a gas guide pipe two (5), the right end of the support rod one (1) and the support rod two is fixedly connected with a connecting rod one (6), the left end of the support rod one (1) and the support rod two is fixedly connected with a connecting rod two (7), the connecting rod one (6) and the connecting rod two (7) are located on the upper side of the support rod one (1) and the support rod two, the connecting rod one (6) and the connecting rod two (7) are fixedly provided with two connecting rings (8), the lower wall of the support rod one (1) and the support rod two is fixedly connected with a support rod three (9), the support rod three (9) is provided with a plurality of positioning holes (10), the two gas guide pipe ones (4) are provided with an adjusting mechanism one between the corresponding support rod one (1) and the support rod two, the end of the two gas guide pipe twos (5) is fixedly provided with a sealing bearing two, the outer wall of the sealing bearing two is fixedly provided with a pipe joint two (11), the pipe joint two (11) is fixedly connected with a connecting pipe (12), the two connecting pipes (12) are commonly provided with a biofilm group (13), the gas guide pipe two (5) and the corresponding connecting pipe (12) are provided with an adjusting mechanism two; The adjusting mechanism one comprises fixed plates one (14) fixed on the support rod one (1) and the support rod two respectively, the fixed plates one (14) are fixedly provided with elastic sheets one (15), the outer wall of the gas guide pipe one (4) is fixedly provided with a turntable one (16) on one side of the elastic sheet one (15), a plurality of uniformly distributed limiting blocks one (17) are arranged on the outer edge of the turntable one (16), and the fixed plates one (14) are provided with fastening mechanisms one; The fastening mechanism one comprises a support frame one (18) fixed on one side of the fixed plate one (14), the support frame one (18) is provided with a threaded hole one, the elastic sheet one (15) is slidably provided with a sliding block one (19), the left wall of the sliding block one (19) is embedded with a bearing one, the inner wall of the bearing one is fixedly connected with a threaded rod one (20) inserted in the threaded hole one, and the outer end of the threaded rod one (20) is fixedly connected with a knob one (21).

2. The modified membrane aerated biofilm reactor according to claim 1, wherein, The adjusting mechanism two comprises a fixed plate two (22) fixed on the outer wall of the connecting pipe (12), the fixed plate two (22) is fixedly provided with elastic sheets two (23), the outer wall of the gas guide pipe two (5) is fixedly provided with a turntable two (24) on one side of the elastic sheet two (23), a plurality of uniformly distributed limiting blocks two (25) are fixedly arranged on the outer edge of the turntable two (24), and the fixed plate two (22) is provided with fastening mechanisms two.

3. The modified membrane aerated biofilm reactor of claim 2, wherein, The fastening mechanism two comprises a supporting frame two (26) fixed on one side of the second fixing plate (22), a threaded hole two is arranged on the supporting frame two (26), a sliding block two (27) is arranged on the elastic sheet two (23) in a sliding mode, a bearing two is fixedly embedded on the left side wall of the sliding block two (27), the inner wall of the bearing two is fixedly connected with a threaded rod two (28) inserted into the threaded hole two, and the outer end of the threaded rod two (28) is fixedly connected with a knob two (29).

4. The modified membrane-aerated biofilm reactor of claim 1, wherein, The lower sides of the two supporting rods three (9) are commonly provided with a floating plate.

5. The modified membrane-aerated biofilm reactor according to claim 1, wherein The inner end portion outer wall of the air guide pipe two (5) is fixedly sleeved with a rubber ring, and the rubber ring is in extrusion contact with the inner wall of the air guide pipe one (4).

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