Domestic sewage treatment device using MABR (Membrane Aerated Baffled Reactor) membrane

Abstract

The utility model relates to the field of environmental protection, and discloses a domestic sewage treatment device using an MABR (Membrane Aerated Baffled Reactor) membrane, which comprises a shell, and a partition plate is fixedly arranged in the shell; one side of the partition plate is a filter cavity, and the other side is a sedimentation tank; a filter plate is inserted into the filter cavity, and a plate-type MABR reactor is embedded in the partition plate; the inlet diameter of the filter holes in the filter plate is greater than the outlet diameter; a plurality of water baffles of which the heights are sequentially reduced are arranged in the sedimentation tank; a water outlet pipe is fixedly arranged on the other side wall of the sedimentation tank and is provided with an electromagnetic valve; the water outlet pipe is connected with the water inlet of the sand filter, the water outlet of the sand filter is connected with the dosing tank through a pipeline, the top surface of the dosing tank is provided with a flip top cover, the top cover is provided with a stirring shaft, the output port of the dosing tank is provided with the ultraviolet sterilizer, one end of a water channel in the ultraviolet sterilizer is communicated with the output port, and the other end of the water channel is a discharge port. All the components are easy to disassemble and clean, the maintenance and repair difficulty is reduced, and the sewage treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of environmental protection, concretely to a domestic sewage treatment device using MABR membrane. BACKGROUND

[0002] China's per capita water resources is less, and the spatial distribution is uneven. With the acceleration of China's urbanization and industrialization, the demand gap of water resources is also increasing. The sewage treatment industry as an emerging industry has brought significant impact and changes to the treatment and utilization of sewage, enabling sewage to be transformed into usable water resources for industrial production, agricultural irrigation, urban greening and other fields, alleviating the problem of water resource shortage and reducing the pollution and damage of sewage to the environment. The domestic sewage treatment device utilizes physical, chemical and biological treatment methods to decompose and remove organic matter, inorganic matter and microorganisms in sewage, so that it meets the discharge standard, usually including a pretreatment unit, a biological treatment unit and a deep treatment unit, which has a complex structure and is difficult to maintain and repair.

[0003] The related reference CN209537222U discloses an integrated MABR and sand filter combined domestic sewage treatment device, which has a membrane biological reaction pool, a sedimentation tank, a sand filter tank and an ultraviolet disinfection tank in the shell separated by a baffle. A membrane aerated biological reactor is arranged in the membrane biological reaction pool. However, there is no initial filtration structure installed before the membrane biological reaction pool, and the membrane aerated biological reactor is easily blocked by large particles, suspended solids and other impurities in the sewage during operation, affecting the sewage treatment efficiency. SUMMARY

[0004] The utility model solves the technical problem of providing a domestic sewage treatment device using MABR membrane, which is easy to disassemble and clean, reduces the difficulty of maintenance and repair, and improves the sewage treatment efficiency.

[0005] To solve the above technical problems, the utility model provides a domestic sewage treatment device using MABR membrane, which comprises a shell, a baffle fixedly installed in the shell, a filter cavity on one side of the baffle, a sedimentation tank on the other side of the baffle, a filter plate inserted in the filter cavity, a plate type MABR reactor embedded on the baffle, filter holes uniformly arranged on the filter plate, the inlet diameter of the filter holes being larger than the outlet diameter, multiple water baffles with decreasing heights arranged in the sedimentation tank, a water outlet pipe fixedly installed on the other side wall of the sedimentation tank, an electromagnetic valve installed on the water outlet pipe, a water inlet of a sand filter connected to the water outlet pipe, a water outlet of the sand filter connected to a dosing tank through a pipeline, a flip type top cover arranged on the top surface of the dosing tank, a stirring shaft installed on the top cover, an ultraviolet sterilizer installed on the output port of the dosing tank, a water passage arranged in the ultraviolet sterilizer, the water passage being communicated with the output port at one end and having a discharge port at the other end.

[0006] By adopting the technical scheme, the filter plate with a filter hole of which the inlet diameter is larger than the outlet diameter is arranged in front of the plate type MABR reactor, the accumulation of large particles, suspended solids and other impurities in the sewage at the inlet is reduced, the risk of blockage is reduced, the sewage can flow smoothly, and the sewage treatment efficiency is improved. The electromagnetic valve installed on the outlet pipe can control the opening and closing of the discharge pipeline according to the running state of the sewage treatment device, so as to ensure that the sewage discharge meets the standard, and the flexibility of the device is improved. The device is designed reasonably, and the components are easy to disassemble and clean, so that the difficulty of maintenance and repair is reduced.

[0007] Preferably, the inner wall of the shell is provided with a mounting groove, and the filter plate is arranged in the mounting groove.

[0008] By adopting the technical scheme, the filter plate is sealed and connected with the mounting groove through the sealing strip, so as to effectively prevent the leakage of sewage from the gap during the filtration process, and ensure the stability of the sewage treatment process. When it is necessary to clean or replace the filter plate, the filter plate can be pulled out of the mounting groove, without the need to disassemble other components, so that the maintenance process is greatly simplified.

[0009] Preferably, the partition plate 28 is provided with a mounting opening.

[0010] By adopting the technical scheme, the plate type MABR reactor is convenient to install.

[0011] Preferably, the plate type MABR reactor is provided with a sealing ring around, and the plate type MABR reactor is inlaid and installed in the mounting opening through the sealing ring.

[0012] By adopting the technical scheme, the plate type MABR reactor can be easily fixed in the mounting opening through the inlaid installation of the sealing ring, the installation process is simplified, and the leakage of sewage from the gap between the reactor and the mounting opening during the treatment process can be prevented, which helps to maintain the stability of the internal environment of the reactor and ensure the normal growth of the biofilm and the sewage treatment effect.

[0013] Preferably, the front surface of the plate type MABR reactor is provided with a positioning member, and the positioning member is fixedly connected with the partition plate.

[0014] By adopting the technical scheme, the installation of the plate type MABR reactor is further ensured to be stable and not easy to fall off.

[0015] Preferably, the bottom surface of the sedimentation tank is provided with a water baffle groove, a water baffle is arranged in the water baffle groove, the back surface of the water baffle is provided with a stand column, and the stand column is vertically arranged on the bottom surface of the sedimentation tank.

[0016] By adopting the technical scheme, the water baffle is fixedly inserted into the water baffle groove, the combination structure of the stand column and the water baffle ensures the stability of the water baffle, prevents the water baffle from shaking or collapsing due to water flow impact, increases the stability of water flow in the sedimentation tank, reduces the generation of turbulent flow and vortex, and is beneficial to stable sedimentation of particulate matters.

[0017] Preferably, the top cover comprises a combination cover I and a combination cover II, and the combination cover I and the combination cover II are connected through a hinge.

[0018] By adopting the technical scheme, the combination cover I and the combination cover II are connected through the hinge, so that the top cover can be flexibly opened and closed, and it is convenient for an operator to perform dosing, maintenance, inspection or cleaning work, and thus the operability and maintenance convenience of the equipment are improved. When the combination cover I and the combination cover II are closed, the top cover and the dosing tank form a good sealing effect, prevent the volatilization of the liquid medicine or the entry of external impurities into the dosing tank, help to maintain the purity of the liquid medicine and the cleanliness inside the dosing tank, and meanwhile improve the safety of the equipment.

[0019] Preferably, a stirring shaft is installed on the combination cover II through a bearing, and the stirring shaft is driven by a rotating motor.

[0020] By adopting the technical scheme, the stirring shaft is installed on the combination cover II through the bearing and is driven by the rotating motor, so that efficient stirring operation can be realized, the liquid medicine is uniformly mixed in the dosing tank, and the dosing effect and the reaction rate are improved. The installation process of the combination top cover and the stirring shaft is relatively simple, and complex processes and equipment are not needed. In addition, the debugging process is relatively easy, and an operator can quickly master the running state of the equipment and make necessary adjustments.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] 1. The filter plate with an inlet diameter larger than an outlet diameter of a filter hole is inserted and installed in front of the plate type MABR reactor, so that the accumulation of large particulate matters, suspended matters and other impurities in the sewage at the inlet is reduced, the risk of blockage is reduced, the sewage can flow smoothly, and the sewage treatment efficiency is improved. The electromagnetic valve installed on the outlet pipe can control the opening and closing of the discharge pipeline according to the running state of the sewage treatment device, so as to ensure that the sewage discharge meets the standard, and the flexibility of the device is improved. The device is designed reasonably, and the components are easy to disassemble and clean, so that the difficulty of maintenance and repair is reduced.

[0023] 2. The filter plate is sealed and connected with the installation groove through the sealing strip, so that the leakage of the sewage from the gap during the filtration process is effectively prevented, and the stability of the sewage treatment process is ensured. When the filter plate needs to be cleaned or replaced, the filter plate can be pulled out of the installation groove without disassembling other parts, so that the maintenance process is greatly simplified.

[0024] 3. The utility model discloses through the sealing ring sealing inlay installation, and the plate type MABR reactor can be fixed in the installation mouth easily, simplifies the installation process, and can prevent sewage from leaking from the gap between the reactor and the installation mouth in the treatment process, helps to keep the internal environment of the reactor stable, ensures the normal growth of the biofilm and the sewage treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure schematic drawing of the utility model;

[0026] Figure 2 It is the filter plate structure schematic drawing of the utility model;

[0027] Figure 3 It is the plate type MABR reactor installation schematic drawing of the utility model;

[0028] Figure 4 It is the water baffle installation schematic drawing of the utility model;

[0029] Figure 5 It is the top cover structure schematic drawing of the utility model.

[0030] Figure number: 1. Shell, 2. Filter plate, 3. Plate type MABR reactor, 4. Sedimentation tank, 5. Filter hole, 6. Water baffle, 7. Water outlet pipe, 8. Electromagnetic valve, 9. Sand filter, 10. Water inlet, 11. Water outlet, 12. Dosing tank, 13. Top cover, 14. Stirring shaft, 15. Output, 16. Ultraviolet sterilizer, 17. Water passage, 18. Installation groove, 19. Sealing strip, 20. Installation mouth, 21. Sealing ring, 22. Positioning piece, 23. Water baffle groove, 24. Stand, 25. Combination cover one, 26. Combination cover two, 27. Hinge, 28. Partition. DETAILED DESCRIPTION

[0031] As Figure 1 Shown, a kind of domestic sewage treatment device using MABR membrane, including shell 1, shell 1 is fixedly installed partition 28. Partition 28 one side is filter cavity, the other side is sedimentation tank 4. Filter cavity inserts filter plate 2, and inlay plate type MABR reactor 3 is set on partition 28. Filter plate 2 inserts, and plate type MABR reactor 3 inlay installation, greatly simplifies dismounting operation process. Filter hole 5 is evenly provided on filter plate 2. As Figure 2As shown, the inlet diameter of the filter hole 5 is larger than the outlet diameter, and the larger inlet helps to reduce the accumulation of impurities at the inlet, thereby reducing the risk of blockage. The sedimentation tank 4 is provided with a plurality of water baffles 6 with gradually decreasing heights, which is conducive to forming a gradually slowing water flow, allowing more settling time for impurities in the water and improving the settling effect of impurities in the water. The other side wall of the sedimentation tank 4 is fixedly installed with a water outlet pipe 7, and an electromagnetic valve 8 is installed on the water outlet pipe 7. The water outlet pipe 7 is connected to the water inlet 10 of the sand filter 9, and the water outlet 11 of the sand filter 9 is connected to the dosing tank 12 through a pipeline. The dosing tank 12 is provided with a flip-top cover 13 on the top surface, and a stirring shaft 14 is installed on the cover 13. An ultraviolet sterilizer 16 is installed on the output port 15 of the dosing tank 12, and a water passage 17 is provided in the ultraviolet sterilizer 16. One end of the water passage 17 is connected to the output port 15, and the other end of the water passage 17 is a discharge port. The present application inserts and installs a filter plate 2 with a filter hole 5 having an inlet diameter larger than an outlet diameter in front of the plate-type MABR reactor 3, reduces the accumulation of large particles, suspended solids and other impurities in the sewage at the inlet, reduces the risk of blockage, allows the sewage to flow smoothly, and improves the efficiency of sewage treatment. The electromagnetic valve 8 installed on the water outlet pipe 7 can control the opening and closing of the discharge pipeline according to the operating state of the sewage treatment device, ensuring that the sewage discharge meets the standards, which improves the flexibility of the device. The device is designed reasonably, and the components are easy to disassemble and clean, reducing the difficulty of maintenance and repair.

[0032] A groove 18 is welded and installed on the inner wall of the shell 1, the filter plate 2 is inserted into the installation groove 18, and the filter plate 2 is attached to the sealing strip 19 on the side. The filter plate 2 is sealed and connected with the installation groove 18 through the sealing strip 19, effectively preventing sewage from leaking out of the gap during the filtration process, ensuring the stability of the sewage treatment process. When it is necessary to clean or replace the filter plate 2, the filter plate 2 can be pulled out of the installation groove 18 without the need to disassemble other parts, greatly simplifying the maintenance process.

[0033] As shown in Figure 3 The partition 28 is provided with a mounting port 20 for installing the plate-type MABR reactor 3. The plate-type MABR reactor 3 is provided with a sealing ring 21 around it, and is inlaid and installed in the mounting port 20 through the sealing ring 21. The plate-type MABR reactor 3 can be easily fixed in the mounting port 20 through the sealing ring 21, which simplifies the installation process and prevents sewage from leaking out of the gap between the reactor and the mounting port 20 during the treatment process, which helps to maintain the stability of the internal environment of the reactor and ensures the normal growth of the biofilm and the sewage treatment effect. The front of the plate-type MABR reactor 3 is provided with a positioning member 22, which is fixedly connected with the partition 28, further ensuring the stable installation of the plate-type MABR reactor 3 and preventing it from falling off.

[0034] As shown in Figure 4As shown, the bottom surface of the sedimentation tank 4 is provided with a baffle groove 23, and the baffle 6 is inserted into the baffle groove 23. The back surface of the baffle 6 is provided with a stand column 24 which stands on the bottom surface of the sedimentation tank 4. The baffle 6 is fixedly inserted into the baffle groove 23, and the combined structure of the stand column 24 and the baffle 6 ensures the stability of the baffle 6, prevents it from shaking or collapsing due to water flow impact, increases the stability of the water flow in the sedimentation tank 4, reduces the generation of turbulent flow and vortex, and is beneficial to the stable sedimentation of particulate matter.

[0035] As shown in the figure, Figure 5 The top cover 13 includes a combination cover one 25 and a combination cover two 26, and the combination cover one 25 and the combination cover two 26 are connected through a hinge 27. The combination cover one 25 and the combination cover two 26 are connected through the hinge 27, so that the top cover 13 can be flexibly opened and closed, which is convenient for the operator to carry out dosing, maintenance, inspection or cleaning work, and such design improves the operability and maintenance convenience of the equipment. When the combination cover one 25 and the combination cover two 26 are closed, the top cover 13 and the dosing tank 12 form a good sealing effect, which prevents the volatilization of the liquid medicine or the entry of external impurities into the dosing tank 12, helps to maintain the purity of the liquid medicine and the cleanliness inside the dosing tank 12, and improves the safety of the equipment.

[0036] The combination cover two 26 is provided with a stirring shaft 14 mounted through a bearing, and the stirring shaft 14 is fixed with stirring blades. The stirring shaft 14 is driven by a rotating motor. The stirring shaft 14 is mounted on the combination cover two 26 through a bearing and driven by a rotating motor, which can realize efficient stirring operation and ensure uniform mixing of the liquid medicine in the dosing tank 12, thereby improving the dosing effect and reaction rate. The installation process of the combination top cover 13 and the stirring shaft 14 is relatively simple, without the need for complex technology and equipment. In addition, the debugging process is also relatively easy, and the operator can quickly master the running state of the equipment and make necessary adjustments.

[0037] In operation, the sewage first passes through the filter plate 2 with a filter hole 5 whose inlet diameter is larger than the outlet diameter, and then enters the plate type MABR reactor 3, which avoids physical damage such as blocking of the membrane hole and scratching of the membrane surface of the membrane assembly of the MABR reactor caused by large particulate matter, suspended matter and impurities in the sewage, improves the sewage treatment efficiency, and prolongs the service life of the membrane assembly. Then the sewage passes through the sedimentation tank 4 to the sand filter 9. The electromagnetic valve 8 installed on the water outlet pipe 7 of the sedimentation tank 4 can control the opening and closing of the discharge pipeline according to the running state of the sewage treatment device, to ensure that the sewage discharge meets the standards. The sedimentation tank 4 is provided with multiple baffles 6 with decreasing heights, which is beneficial to the formation of gradually slowing water flow and good sedimentation effect. After sedimentation, the sewage enters the dosing tank 12 for dosing and purification. The dosing tank has a stirring shaft 14 with stirring blades driven by the stirring shaft 14, which has good dosing effect and fast reaction rate. After purification, the sewage is discharged after being sterilized by the ultraviolet sterilizer 16.

[0038] It will be understood by those skilled in the art that the embodiments of the present application described above and shown in the drawings are merely illustrative and not restrictive of the present application. The object of the present application has been completely and effectively achieved. The function and structural principle of the present application have been demonstrated and explained in the embodiments, and the embodiments of the present application can have any deformation or modification without departing from the principle.

Claims

1. A domestic wastewater treatment apparatus using MABR membrane comprising a housing (1), characterized in that: The shell (1) is internally fixedly installed with a partition plate (28); one side of the partition plate (28) is a filtering cavity, and the other side is a sedimentation tank (4); a filtering plate (2) is inserted in the filtering cavity; and a plate type MABR reactor (3) is embedded on the partition plate (28); filtering holes (5) are uniformly formed on the filtering plate (2); the inlet diameter of the filtering holes (5) is larger than the outlet diameter; a plurality of water baffle plates (6) with decreasing heights are arranged in the sedimentation tank (4); a water outlet pipe (7) is fixedly installed on the other side wall of the sedimentation tank (4); an electromagnetic valve (8) is installed on the water outlet pipe (7); the water inlet (10) of a sand filter (9) is connected to the water outlet pipe (7); the water outlet (11) of the sand filter (9) is connected to a dosing tank (12) through a pipeline; a flip type top cover (13) is arranged on the top surface of the dosing tank (12); a stirring shaft (14) is installed on the top cover (13); an ultraviolet sterilizer (16) is installed on the output port (15) of the dosing tank (12); a water passing channel (17) is arranged in the ultraviolet sterilizer (16); one end of the water passing channel (17) is communicated with the output port (15); and the other end of the water passing channel (17) is a discharge port.

2. A domestic wastewater treatment apparatus using a MABR membrane according to claim 1, characterized in that: An installation groove (18) is arranged on the inner wall of the shell (1); the filtering plate (2) is inserted in the installation groove (18); and a sealing strip (19) is attached to the side edge of the filtering plate (2).

3. A domestic wastewater treatment apparatus using a MABR membrane according to claim 1, characterized in that: The partition plate (28) is provided with a mounting port (20).

4. The MABR membrane-based device for treating domestic wastewater according to claim 1, characterized in that: The plate type MABR reactor (3) is provided with a sealing ring (21) around; and the plate type MABR reactor (3) is inlaidly installed in the mounting port (20) through the sealing ring (21).

5. A domestic wastewater treatment apparatus using a MABR membrane according to claim 4, characterized in that: The front surface of the plate type MABR reactor (3) is provided with a positioning member (22); and the positioning member (22) is fixedly connected with the partition plate (28).

6. A domestic wastewater treatment apparatus using a MABR membrane according to claim 1, characterized in that: The bottom surface of the sedimentation tank (4) is provided with a water baffle groove (23); the water baffle plate (6) is inserted in the water baffle groove (23); the back surface of the water baffle plate (6) is provided with a stand column (24); and the stand column (24) is vertically arranged on the bottom surface of the sedimentation tank (4).

7. A domestic wastewater treatment apparatus using a MABR membrane according to claim 1, characterized in that: The top cover (13) comprises a combined cover one (25) and a combined cover two (26); and the combined cover one (25) and the combined cover two (26) are connected through a hinge (27).

8. A domestic wastewater treatment apparatus using a MABR membrane according to claim 7, characterized in that: The stirring shaft (14) is installed on the combined cover two (26) through a bearing; and the stirring shaft (14) is driven by a rotating motor.

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