MBBR-MBR composite sewage treatment equipment

Abstract

The utility model provides MBBR-MBR composite sewage treatment equipment which comprises an adjusting tank provided with a lifting basket grid, the outlet end of the adjusting tank is communicated with the inlet end of an adjusting tank lifting pump, and the outlet end of the adjusting tank lifting pump is communicated with MBBR sewage treatment equipment through a pipe set. A purified water outlet of the MBBR sewage treatment equipment is communicated with the MBR sewage treatment equipment through a booster pump group 7, and the MBR sewage treatment equipment and the MBBR sewage treatment equipment are integrally arranged to form MBBR-MBR composite sewage treatment equipment; the water outlet end of the MBR sewage treatment equipment is communicated with a water outlet pipe group provided with a high-pressure water outlet pump group, and the water outlet pipe group is communicated with a water storage tank. The MBBR-MBR composite sewage treatment equipment disclosed by the utility model has the characteristics of small occupied area, excellent effluent quality and stable operation, and is suitable for water quality purification plants which are short in occupied area in cities and have reuse water requirements.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to an MBBR-MBR composite wastewater treatment equipment. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet discharge quality requirements. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, and healthcare.

[0003] The current traditional domestic sewage treatment process includes a pretreatment stage, in which large particles in the water are removed by a screen, and then the water enters a primary sedimentation tank. Through settling, larger suspended solids (sand, mud, etc.) will settle to the bottom and form sludge. Next, it enters the secondary treatment stage, through anaerobic, anoxic and aerobic tanks, to remove microorganisms and impurities from the sewage. Finally, after secondary sedimentation and deep treatment, the water meets the discharge standards and is recycled.

[0004] Traditional urban wastewater treatment processes, while effectively removing suspended solids and organic pollutants, also have several significant drawbacks. First, these processes often require large land areas, have long construction periods, and involve substantial initial investments, which is particularly pronounced in cities where land is scarce and resources are limited. Second, traditional wastewater treatment facilities are difficult to maintain and repair, and are prone to malfunctions or performance degradation during operation, increasing management and operating costs.

[0005] Therefore, how to solve the defects in the above-mentioned technical solutions has become one of the urgent problems to be solved in the field of wastewater treatment technology. Utility Model Content

[0006] In view of the problems existing in the background technology, the present invention provides an MBBR-MBR composite wastewater treatment equipment, including an equalization tank equipped with a basket screen, the outlet end of the equalization tank being connected to the inlet end of an equalization tank lift pump, and the outlet end of the equalization tank lift pump being connected to an MBBR wastewater treatment equipment through a pipe assembly, the purified effluent outlet of the MBBR wastewater treatment equipment being connected to the MBR wastewater treatment equipment through a booster pump assembly 7, and the MBR wastewater treatment equipment and the MBBR wastewater treatment equipment being integrated to form an MBBR-MBR composite wastewater treatment equipment; the effluent outlet end of the MBR wastewater treatment equipment being connected to an effluent pipe assembly equipped with a high-pressure effluent pump assembly, and the effluent pipe assembly being connected to a water storage tank.

[0007] Optionally, the booster pump set includes a booster water pump, the inlet of which is connected to the outlet of the MBBR wastewater treatment equipment, and the outlet of which is connected to a storage pipe. The storage pipe has multiple sets of outlets evenly distributed laterally, and the outlets are connected to a spray assembly. The outlet of the spray assembly extends into the MBR wastewater treatment equipment.

[0008] Optionally, the water storage tank is provided with multiple sets of water outlets, any one of which is connected to a flushing pump set, and the water outlet of the flushing pump set is connected to a flushing pipe. The flushing pipe is equipped with a one-way valve, and the other end of the flushing pipe is connected to an inlet pipe installed on the MBR wastewater treatment equipment.

[0009] Optionally, the inlet pipe outlet port is connected to the main pipe, and the main pipe is provided with two sets of outlets, which are respectively connected to the first auxiliary pipe and the second auxiliary pipe. The first auxiliary pipe and the second auxiliary pipe are located on the upper and lower sides of the membrane of the MBR wastewater treatment equipment, and the first auxiliary pipe and the second auxiliary pipe are connected by a connector. The first auxiliary pipe and the second auxiliary pipe are provided with multiple sets of nozzles evenly distributed in their transverse direction, and the nozzles extend into the MBR wastewater treatment equipment and are opposite to the membrane inside the MBR wastewater treatment equipment.

[0010] Optionally, the spraying assembly includes a feed guide cylinder, inside which is an inclined filter screen. An outlet is provided on the inner wall of the feed guide cylinder below the filter screen, and the outlet is connected to a guide plate. The guide plate near the inlet has an arc-shaped end and extends continuously toward the nozzle. The diameter of the guide plate near the inlet is smaller than the diameter of the guide plate near the nozzle. The nozzle extends into the MBR wastewater treatment equipment.

[0011] In summary, the beneficial effects of this utility model are:

[0012] (1) The MBBR-MBR composite sewage treatment equipment of this utility model has the characteristics of small footprint, excellent effluent quality and stable operation, and is suitable for water purification plants in cities with limited land area and demand for recycled water.

[0013] (2) This utility model uses a guide plate to allow water to flow into the MBR wastewater treatment equipment, so that the water flows in a predetermined direction within the MBR wastewater treatment equipment. The guide plate with an arc-shaped end reduces water resistance. Since the diameter of the guide plate near the inlet is smaller than that near the nozzle, the flow velocity of the water entering the guide plate is greater, which in turn causes the water flow ejected through the nozzle to form a certain shear force. This can effectively break the dead zone of water flow within the MBR wastewater treatment equipment, thereby reducing the probability of particulate matter accumulation and preventing the filter membrane from becoming clogged. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of an MBBR-MBR composite wastewater treatment device according to this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of an embodiment of an MBBR-MBR composite wastewater treatment device according to the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of an MBBR-MBR composite wastewater treatment device according to an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the spray component structure of an embodiment of an MBBR-MBR composite wastewater treatment device according to this utility model.

[0018] Figure label:

[0019] 1. Equalization tank;

[0020] 2. Regulating tank lift pump;

[0021] 3. Sludge discharge pipe;

[0022] 4. Basket grille;

[0023] 7. Booster pump set; 071. Booster water pump; 072. Storage pipe set;

[0024] 073. Injection assembly; 0731. Filter screen; 0732. Sleeve; 073. Arc-shaped end; 0734. Guide plate; 0735. Nozzle;

[0025] 8. MBR wastewater treatment equipment; 081. Mesh screen; 082. Main pipe; 083. Inlet pipe; 084. Membrane; 085. Sludge discharge port; 086. Connector; 087. Nozzle; 088. First auxiliary pipe; 089. Second auxiliary pipe;

[0026] 9. MBBR wastewater treatment equipment;

[0027] 10. Dosing tank;

[0028] 11. Aeration device;

[0029] 12. Water storage tank;

[0030] 13. Ozone reactor;

[0031] 14. Water outlet pipe assembly;

[0032] 15. Check valve. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0034] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] like Figures 1-4As shown, this embodiment provides an MBBR-MBR composite wastewater treatment device, including an equalization tank 1 equipped with a basket screen 4 to remove large solid impurities from the wastewater; the outlet end of the equalization tank 1 is connected to the inlet end of an equalization tank lift pump 2, and the outlet end of the equalization tank lift pump 2 is connected to an MBBR wastewater treatment device 9 through a pipe assembly. Organic matter in the water enters the MBBR wastewater treatment device 9 and is degraded by the MBBR wastewater treatment device 9, thereby removing organic matter from the wastewater. The wastewater purified by the MBBR wastewater treatment device then enters a booster pump assembly 7 and is transported to an MBR wastewater treatment device 8 by the booster pump assembly. The MBR wastewater treatment device 8 and the MBBR wastewater treatment device 9 are integrated to form an MBBR-MBR composite wastewater treatment device; the outlet end of the MBR wastewater treatment device 8 is connected to an outlet pipe assembly 14 equipped with a high-pressure outlet pump assembly, and the outlet pipe assembly 14 is connected to a water storage tank 12, through which water is transported to the municipal pipeline.

[0037] In this embodiment, the MBBR-MBR composite wastewater treatment equipment of this utility model has the characteristics of small footprint, excellent effluent quality and stable operation, and is suitable for water purification plants in cities with limited land area and demand for recycled water.

[0038] Furthermore, the booster pump set 7 includes a booster water pump 071, the inlet end of which is connected to the outlet end of the MBBR wastewater treatment equipment 9, and the outlet end of the booster water pump 071 is connected to a storage pipe 072. The storage pipe 072 has multiple sets of water outlets evenly distributed laterally, and the water outlets are connected to a spray assembly 073. The outlet end of the spray assembly 073 extends into the MBR wastewater treatment equipment 8.

[0039] In practical applications, current traditional domestic wastewater treatment processes require multiple treatments and sedimentation steps. However, wastewater treated by MBBR (Membrane Bioreactor) equipment often fails to meet domestic water quality standards, still containing particulate matter and microorganisms. Furthermore, the low penetration velocity of the MBR membrane and insufficient water flow velocity easily lead to particulate matter accumulation and membrane clogging. For solutions to these technical problems, please refer to [link to relevant documentation]. Figure 1-4 As shown, the water storage tank 12 is provided with multiple sets of water outlets, any one of which is connected to the flushing pump group 16, and the water outlet of the flushing pump group is connected to the flushing pipe. The flushing pipe is provided with a one-way valve 15 to prevent fluid backflow. The other end of the flushing pipe is connected to the inlet pipe 083 provided on the MBR wastewater treatment equipment 8.

[0040] Furthermore, the outlet port of the inlet pipe 083 is connected to the main pipe 082, and the main pipe 082 is provided with two sets of outlets, which are respectively connected to the first auxiliary pipe 088 and the second auxiliary pipe 089. The first auxiliary pipe 088 and the second auxiliary pipe 089 are located on the upper and lower sides of the membrane of the MBR wastewater treatment equipment 8, respectively, and the first auxiliary pipe 088 and the second auxiliary pipe 089 are connected by a connector 806. The first auxiliary pipe 088 and the second auxiliary pipe 089 are provided with multiple sets of nozzles 087 evenly distributed in their transverse direction, and the nozzles 087 extend into the MBR wastewater treatment equipment 8 and are opposite to the membrane 084 inside the MBR wastewater treatment equipment 8.

[0041] In this embodiment, by starting the flushing pump group 16, the water in the water storage tank 12 (if there is no usable backwash purified water in the water storage tank, the water storage tank can be opened to transport water into it) is transported to the auxiliary pipe (first auxiliary pipe and second auxiliary pipe) and sprayed out through the nozzle 087. The impact force of the water can prevent the adhesion of particulate matter or microorganisms.

[0042] Furthermore, the spraying assembly 073 includes a feed guide cylinder 0732, inside which is an inclined filter screen 0731. The filter screen 0731 prevents solid particles from entering the MBR wastewater treatment equipment 8. An outlet is provided on the inner wall of the feed guide cylinder 0732 below the filter screen 0731, and the outlet is connected to a guide plate 0734. The guide plate 0734 near the inlet has an arc-shaped end 0733, and the guide plate extends continuously toward the nozzle 0735. The diameter of the guide plate near the inlet is smaller than the diameter of the guide plate near the nozzle 0735. The nozzle 0735 extends into the MBR wastewater treatment equipment 8.

[0043] In this embodiment, the present invention uses a guide plate to guide water flow into the MBR wastewater treatment equipment 8, allowing the water to flow in a predetermined direction within the MBR wastewater treatment equipment 8. The guide plate with an arc-shaped end 0733 reduces water resistance. Furthermore, since the diameter of the guide plate near the inlet is smaller than that near the nozzle 0735, the flow velocity of the water entering the guide plate is relatively high. This results in the water flow ejected through the nozzle 0735 generating a certain shear force, which can effectively break up the dead zone of water flow within the MBR wastewater treatment equipment 8, thereby reducing the probability of particulate matter accumulation and preventing filter membrane fouling.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An MBBR-MBR composite wastewater treatment equipment, characterized in that, The system includes an equalization tank equipped with a basket grid. The outlet of the equalization tank is connected to the inlet of an equalization tank booster pump, and the outlet of the equalization tank booster pump is connected to an MBBR wastewater treatment unit via a pipe assembly. The purified effluent from the MBBR wastewater treatment unit is connected to an MBR wastewater treatment unit via a booster pump assembly. The MBR wastewater treatment unit and the MBBR wastewater treatment unit are integrated into one unit, forming an MBBR-MBR composite wastewater treatment system. The outlet of the MBR wastewater treatment unit is connected to an effluent pipe assembly equipped with a high-pressure effluent pump assembly, and the effluent pipe assembly is connected to a water storage tank.

2. The MBBR-MBR composite wastewater treatment equipment according to claim 1, characterized in that, The booster pump set includes a booster water pump. The inlet end of the booster water pump is connected to the outlet end of the MBBR wastewater treatment equipment, and the outlet end of the booster water pump is connected to a storage pipe. The storage pipe has multiple sets of water outlets evenly distributed laterally, and the water outlets are connected to a spray assembly. The outlet end of the spray assembly extends into the MBR wastewater treatment equipment.

3. The MBBR-MBR composite wastewater treatment equipment according to claim 2, characterized in that, The water storage tank is equipped with multiple sets of water outlets, any one of which is connected to a flushing pump set, and the water outlet of the flushing pump set is connected to a flushing pipe. The flushing pipe is equipped with a one-way valve, and the other end of the flushing pipe is connected to the inlet pipe installed on the MBR wastewater treatment equipment.

4. The MBBR-MBR composite wastewater treatment equipment according to claim 3, characterized in that, The inlet pipe outlet port is connected to the main pipe, and the main pipe is provided with two sets of outlets, which are respectively connected to the first auxiliary pipe and the second auxiliary pipe. The first auxiliary pipe and the second auxiliary pipe are located on the upper and lower sides of the membrane of the MBR wastewater treatment equipment, and the first auxiliary pipe and the second auxiliary pipe are connected by a connector. The first auxiliary pipe and the second auxiliary pipe are provided with multiple sets of nozzles evenly distributed in their transverse direction, and the nozzles extend into the MBR wastewater treatment equipment and are opposite to the membrane inside the MBR wastewater treatment equipment.

5. The MBBR-MBR composite wastewater treatment equipment according to claim 2, characterized in that, The spraying assembly includes a feed guide cylinder, inside which is an inclined filter screen. An outlet is provided on the inner wall of the feed guide cylinder below the filter screen, and the outlet is connected to a guide plate. The guide plate near the inlet has an arc-shaped end and extends continuously toward the nozzle. The diameter of the guide plate near the inlet is smaller than the diameter of the guide plate near the nozzle. The nozzle extends into the MBR wastewater treatment equipment.

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