Disc membrane integrated high-quality miscellaneous wastewater treatment equipment

Abstract

The utility model provides disc membrane integrated high-quality miscellaneous wastewater treatment equipment, relates to the technical field of sewage treatment equipment, and aims to solve the problems of high investment cost, high operation cost and the like of a high-quality miscellaneous wastewater treatment process in the prior art. The disc membrane integrated high-quality miscellaneous wastewater treatment equipment comprises an adjusting tank, an aerobic tank, a sedimentation tank, a disc membrane filtering tank and a clean water tank, sewage sequentially flows through the adjusting tank, the aerobic tank, the sedimentation tank, the disc membrane filtering tank and the clean water tank, a plurality of disc membranes are arranged in the disc membrane filtering tank, and the disc membranes are arranged in the clean water tank. And effluent of the disc membrane filter tank flows into the clean water tank through a water producing pump. The disc membrane integrated high-quality miscellaneous drainage treatment equipment has the advantages of simplicity in operation and maintenance, good filtering effect and the like, can be applied to high-quality miscellaneous drainage treatment of hotels, buildings and the like, and is good in high-quality miscellaneous drainage treatment effect and low in investment and operation cost.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and in particular to a high-quality wastewater treatment equipment integrating disc membrane. Background Technology

[0002] High-quality mixed wastewater refers to wastewater with low pollution levels, such as cooling water, swimming pool water, shower water, washbasin water, and laundry water. It has very low concentrations of organic matter and suspended solids, good water quality, is easy to treat, and has low treatment costs. With the accelerating pace of urbanization, the demand for high-quality mixed wastewater treatment is increasing.

[0003] Currently, the market mainly offers integrated equipment processing technologies combining MBR and filtration processes. MBR processes have drawbacks such as high investment and operating costs, while filtration processes suffer from high power consumption. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated disc membrane high-quality wastewater treatment equipment to solve the problems of high investment and high operating costs in existing high-quality wastewater treatment processes. The integrated disc membrane high-quality wastewater treatment equipment of this utility model has the advantages of simple operation and maintenance and good filtration effect. It can be applied to the treatment of high-quality wastewater in hotels, buildings, etc., and has good treatment effect on high-quality wastewater with low investment and operating costs.

[0005] This utility model provides an integrated disc membrane high-quality wastewater treatment device, including an equalization tank, an aerobic tank, a sedimentation tank, a disc membrane filtration tank, and a clear water tank. Wastewater flows sequentially through the equalization tank, the aerobic tank, the sedimentation tank, the disc membrane filtration tank, and the clear water tank. The disc membrane filtration tank is equipped with multiple disc membranes, and the effluent from the disc membrane filtration tank flows into the clear water tank via a product water pump.

[0006] As a preferred embodiment of this utility model, a basket grid is provided at the inlet of the regulating pool, and the water flows into the regulating pool after passing through the basket grid.

[0007] As a preferred embodiment of this utility model, an aeration device and an elastic three-dimensional packing are provided in the aerobic tank. Multiple aeration discs are provided on the aeration device, and the multiple aeration discs are located at the bottom of the aerobic tank. The aeration device is connected to an aeration blower located outside the aerobic tank, and the elastic three-dimensional packing is dispersed in the aerobic tank.

[0008] As a preferred embodiment of this utility model, a reflux pump is also provided in the aerobic tank, which refluxes the water in the aerobic tank back to the equalization tank.

[0009] As a preferred embodiment of this utility model, inclined tube packing is provided in the sedimentation tank, and the inclined tube packing is inclinedly arranged in the sedimentation tank.

[0010] As a preferred embodiment of this utility model, a return pipeline is provided at the bottom of the sedimentation tank, one end of the return pipeline is connected to the sedimentation tank and the other end is connected to the aerobic tank, and a sludge return pump is provided on the return pipeline.

[0011] As a preferred embodiment of this utility model, the disc membrane filter tank further includes a disinfection and dosing device, which is used to add bactericidal and disinfecting drugs to the water in the disc membrane filter tank.

[0012] As a preferred embodiment of this utility model, a lift pump is provided in the equalization tank, the lift pump lifts the water in the equalization tank to the aerobic tank, a connecting pipe is provided between the equalization tank and the aerobic tank, and a flow meter is provided on the connecting pipe.

[0013] As a preferred embodiment of this utility model, the filling rate of the elastic three-dimensional packing material in the aerobic tank is 30%; the specifications of the elastic three-dimensional packing material in the aerobic tank are 100×100×100mm.

[0014] In a preferred embodiment of this invention, the air-to-water ratio of the aerobic tank is 12:1; the aeration rate of the aeration discs in the aeration device is 2 cubic meters per disc; and the surface hydraulic loading of the sedimentation tank is 1.5 m³. 3 / (m 2 ·h).

[0015] Compared with the prior art, the present invention has the following positive effects:

[0016] This utility model provides an integrated high-quality wastewater treatment equipment using disc membranes, comprising an equalization tank, an aerobic tank, a sedimentation tank, a disc membrane filtration tank, and a clear water tank. Wastewater flows sequentially through the equalization tank, the aerobic tank, the sedimentation tank, the disc membrane filtration tank, and the clear water tank. Multiple disc membranes are installed in the disc membrane filtration tank. The effluent from the disc membrane filtration tank flows into the clear water tank via a permeate pump. During operation, the high-quality wastewater enters the equalization tank, where it undergoes flow and quality adjustments before flowing to the contact oxidation tank. The oxidation tank primarily nitrifies ammonia nitrogen in the influent and degrades organic matter. After biochemical treatment, the wastewater enters the sedimentation tank to separate the mud and water mixture. The effluent from the sedimentation tank flows by gravity into the disc membrane filtration tank for further removal of fine suspended solids. The wastewater, after further treatment and filtration, enters the clear water tank, where it is disinfected and stored for reuse, including for garage floors, outdoor landscaping, and road cleaning. The disc membrane in this utility model of integrated high-quality wastewater treatment equipment has a certain filtration function and has the advantages of simple operation and maintenance and good filtration effect. It can be applied to the treatment of high-quality wastewater in hotels, buildings, etc., and has a good treatment effect on high-quality wastewater with low investment and operating costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a utility model of a disc-film integrated high-quality wastewater treatment equipment.

[0019] In the diagram: 1. Equalization tank; 11. Basket screen; 12. Lift pump; 2. Aerobic tank; 21. Aeration blower; 22. Aeration device; 23. Elastic three-dimensional packing; 24. Return pump; 3. Sedimentation tank; 31. Inclined tube packing; 32. Sludge return pump; 4. Disc membrane filter tank; 41. Disc membrane; 42. Dosing device; 43. Permeate pump; 5. Clear water tank; 51. Water pump; 6. Return pipeline. Detailed Implementation

[0020] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to 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.

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Example 1:

[0024] The integrated disc membrane high-quality wastewater treatment equipment provided in this embodiment, such as... Figure 1 As shown, the system includes an equalization tank 1, an aerobic tank 2, a sedimentation tank 3, a disc membrane filter tank 4, and a clear water tank 5. Wastewater flows sequentially through these tanks, with the equalization tank 1 serving as a pretreatment unit. The disc membrane filter tank contains multiple disc membranes 41, and the effluent from the disc membrane filter tank 4 flows into the clear water tank 5 via a product water pump 43.

[0025] In this embodiment, the integrated disc membrane high-quality wastewater treatment equipment receives high-quality wastewater in the equalization tank 1. After the water volume and quality are adjusted in the equalization tank, the wastewater flows to the contact oxidation tank. The oxidation tank mainly nitrifies ammonia nitrogen in the influent and degrades organic matter. The wastewater after biochemical treatment enters the sedimentation tank to separate the mud and water mixture. The effluent from the sedimentation tank flows by gravity into the disc membrane filtration tank for further removal of fine suspended solids. The wastewater after further treatment and filtration enters the clear water tank 5, where it is disinfected and stored for reuse, including for garage floors, outdoor landscaping, and road cleaning.

[0026] The disc membrane in the integrated high-quality wastewater treatment equipment of this embodiment has a certain filtration function and has the advantages of simple operation and maintenance and good filtration effect. It can be applied to the treatment of high-quality wastewater in hotels, buildings and other places. It has a good treatment effect on high-quality wastewater and low investment and operating costs.

[0027] In a preferred embodiment, a basket grid 11 is provided at the inlet of the equalization tank 1, and the water flows into the equalization tank 1 after passing through the basket grid 11.

[0028] The high-quality wastewater flowing into the equalization tank 1 first flows into the basket screen 11. The basket screen 11 intercepts large particles and garbage, preventing blockage of subsequent water pumps, pipelines and reactor devices, and ensuring the smooth operation of subsequent pump equipment.

[0029] In a preferred embodiment, a lift pump 12 is installed in the equalization tank 1 to lift water from the equalization tank 1 to the aerobic tank 2. A connecting pipe is provided between the equalization tank 1 and the aerobic tank 2, and a flow meter is installed on the connecting pipe to monitor the flow rate of water flowing from the equalization tank 1 into the aerobic tank 2. Preferably, the flow meter is an electromagnetic flow meter.

[0030] In a preferred embodiment, an aeration device 22 and an elastic three-dimensional packing material 23 are provided in the aerobic tank 2. Multiple aeration discs are mounted on the aeration device 22 and located at the bottom of the aerobic tank 2. The aeration device 22 is connected to an aeration fan 21 located outside the aerobic tank 2. Air is blown onto the aeration discs of the aeration device 22 by the aeration fan 21, thereby increasing the oxygen content of the water in the aerobic tank 2. Preferably, the air flow rate of each aeration disc in the aeration device 22 is 2 cubic meters. Preferably, the air-to-water ratio of the aerobic tank 2 is 12:1. The elastic three-dimensional packing material 23 is dispersed in the aerobic tank 2. Preferably, the elastic three-dimensional packing material 23 is a polyurethane suspended packing material. Preferably, the filling rate of the elastic three-dimensional packing material 23 in the aerobic tank 2 is 30%; the specifications of the elastic three-dimensional packing material 23 in the aerobic tank 2 are 100×100×100mm.

[0031] In this embodiment, the aerobic tank 2 primarily performs organic matter removal and nitrification. A certain amount of polyurethane suspended packing material with a high specific surface area and a special structure is added to the aerobic tank 2. This packing material immobilizes a large number of microorganisms, forming a hierarchical ecosystem. This increases the biomass and microbial species within the polyurethane suspended packing material. Simultaneously, the polyurethane suspended packing material has large pores, allowing for excellent air permeability and maintaining a sufficient oxygen supply without clogging, significantly improving the degradation efficiency of the microorganisms. Since the density of the polyurethane suspended packing material is close to that of water, it can be completely mixed with water under the action of the aeration blower 21 and aeration device 22, creating a three-phase environment for microbial growth involving gas, liquid, and solid phases. Furthermore, each polyurethane suspended packing material carrier contains different biological species both inside and outside the tank. Anaerobic or facultative anaerobic bacteria grow inside, while aerobic bacteria grow on the outside. Thus, each carrier acts as a microreactor, allowing nitrification and denitrification to occur simultaneously, thereby improving the ammonia nitrogen removal rate.

[0032] In a preferred embodiment, to improve the water quality and quantity regulation effect of the equalization tank 1, a return pump 24 is also installed in the aerobic tank 2. The return pump 24 returns the water in the aerobic tank 2 to the equalization tank 1. The high-quality wastewater treated in the aerobic tank 2 is partially returned to the equalization tank 1 via the return pump 24, and partially enters the sedimentation tank 3 for solid-liquid separation of mud and water.

[0033] High-quality wastewater flows by gravity into equalization tank 1. Simultaneously, water from aerobic tank 2 is returned to equalization tank 1 via mixed liquor return pump 24. Under the action of equalization tank 1, the water quality is uniform and the flow rate is stable as it enters aerobic tank 2. The design of mixed liquor return pump 24 serves two purposes: firstly, to stir the water and ensure uniform water quality in equalization tank 1; and secondly, to increase dissolved oxygen in equalization tank 1 and prevent the water from becoming foul-smelling.

[0034] Preferably, the water in the aerobic tank 2 flows into the sedimentation tank 3 through a connecting pipe located at the lower end of the aerobic tank 2 and the sedimentation tank 3.

[0035] In a preferred embodiment, inclined tube packing 31 is provided in the sedimentation tank 3, and the inclined tube packing 31 is inclinedly arranged in the sedimentation tank 3. Preferably, the inclined tube packing 31 is made of ethylene-propylene copolymer plastic, which is formed by infrared constant temperature hot pressing. It has accurate dimensions, large specific surface area, is safe and non-toxic, corrosion-resistant, aging-resistant, and has a smooth wall surface, making it easy to clean. The inclined tube packing 31 has a large wetted perimeter and a small hydraulic radius, resulting in good laminar flow during operation. Particle settling is not disturbed by turbulence, which can accelerate the separation of particles from water and shorten the settling distance of particles.

[0036] In a preferred embodiment, to further increase the activated sludge concentration within the integrated equipment and improve organic matter treatment efficiency, a return pipeline 6 is installed at the bottom of the sedimentation tank 3. One end of the return pipeline 6 is connected to the sedimentation tank 3, and the other end is connected to the aerobic tank 2. A sludge return pump 32 is installed on the return pipeline 6. The return ratio of the sludge return system is 100%. Preferably, the surface hydraulic loading of the sedimentation tank 3 is 1.5 m. 3 / (m 2 ·h), the sludge separated by sedimentation is returned to the aerobic tank 2 through the sludge return pump 32 to increase the sludge concentration in the aerobic tank 2, and is discharged periodically at the same time.

[0037] It should be noted that the sludge return system of sedimentation tank 3 can also achieve return by adding air stripping.

[0038] Preferably, the water in the sedimentation tank 3 flows into the disc membrane filter 4 through a connecting pipe located at the upper end of the sedimentation tank 3 and the disc membrane filter 4.

[0039] In a preferred embodiment, the disc membrane filter tank 4 further includes a disinfection and dosing device 42, which is used to add bactericidal and disinfecting drugs to the water in the disc membrane filter tank 4. The disinfection and dosing device 42 is used for both the disinfection and sterilization of high-quality wastewater and the maintenance and cleaning of the disc membrane 41.

[0040] Preferably, the disc membrane in the disc membrane filter tank 4 is an ultrafiltration disc membrane, and multiple disc membranes are arranged vertically. The disc membrane filter tank 4 can also adopt the structure of an existing disc membrane filter. The disc membrane 41 in the disc membrane filter tank 4 can further remove fine suspended solids in the water.

[0041] The wastewater treatment process flow of the integrated disc membrane high-quality wastewater treatment equipment in this embodiment is as follows:

[0042] High-quality mixed wastewater flows by gravity into the equalization tank 1, where large particles are intercepted before entering the equalization tank 1. After being adjusted in terms of water volume and quality, the water is then pumped to the aerobic tank 2. The aerobic tank 2 nitrifies the ammonia nitrogen in the influent and degrades organic matter. A portion of the water in the aerobic tank 2 is returned to the equalization tank 1 via the mixed liquor return pump 24. Another portion of the water in the aerobic tank 2 enters the sedimentation tank 3 for solid-liquid separation. The sludge separated by sedimentation is returned to the aerobic tank 2 via the sludge return pump 32 to increase the sludge concentration in the aerobic tank 2, and is periodically discharged. The supernatant from the sedimentation tank 3 enters the disc membrane filter tank 4, where the disc membrane 41 further removes fine suspended solids from the water. Water treated by disc membrane filter tank 4 enters clear water tank 5 via product water pump 43. Clear water tank 5 stores high-quality wastewater that meets the standards. The high-quality wastewater treated by disc membrane filter tank 4 meets national standards and can be directly used for toilet flushing, landscaping, road cleaning, etc. after being pressurized by water pump 51.

[0043] The beneficial effects of the integrated disc membrane high-quality wastewater treatment equipment of this embodiment include at least the following:

[0044] This equipment features a newly added "disc membrane filtration tank" with built-in disc-shaped membranes, ensuring perfectly symmetrical and uniform effluent flow. Its anti-fouling performance is significantly stronger than that of MBR membranes. The disc membranes undergo automatic cross-flow flushing online, requiring only offline chemical cleaning every six months depending on the degree of fouling. Compared to MBR membranes, which require daily backwashing and weekly chemical cleaning, this eliminates the need for operating chemicals. The disc membranes also eliminate the need for backwashing and maintenance chemical cleaning procedures, making operation and management simple and convenient. Compared to MBR membranes, disc membranes require no air compressor for air washing, no online chemical cleaning and dosing device, and no backwashing equipment, resulting in lower power consumption and operating costs.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A high-quality wastewater treatment device integrating disc membrane, characterized in that, The sewage flows through the adjusting pool (1), the aerobic pool (2), the sedimentation pool (3), the disc membrane filter pool (4) and the clean water pool (5) in sequence, the disc membrane filter pool (4) is provided with a plurality of disc membranes, and the effluent of the disc membrane filter pool (4) flows into the clean water pool (5) through a water production pump (43).

2. The disc membrane integrated high-quality miscellaneous water treatment apparatus according to claim 1, characterized in that, A basket grid (11) is arranged at the inlet of the adjusting pool (1), and the inflow flows into the adjusting pool (1) after passing through the basket grid (11).

3. The disc membrane integrated high-quality miscellaneous water treatment apparatus according to claim 1, characterized in that, An aeration device (22) and an elastic three-dimensional filler (23) are arranged in the aerobic pool (2), a plurality of aeration discs are arranged on the aeration device (22), the plurality of aeration discs are located at the bottom of the aerobic pool (2), the aeration device (22) is connected with an aeration fan (21) arranged outside the aerobic pool (2), and the elastic three-dimensional filler (23) is dispersed in the aerobic pool (2).

4. The disc membrane integrated high-quality miscellaneous water treatment apparatus according to claim 1, characterized in that, A reflux pump is further arranged in the aerobic pool (2), and the reflux pump refluxes water in the aerobic pool (2) to the adjusting pool (1).

5. The disc membrane integrated high-quality miscellaneous water treatment apparatus according to claim 1, characterized in that, An inclined pipe filler (31) is arranged in the sedimentation pool (3), and the inclined pipe filler (31) is arranged obliquely in the sedimentation pool (3).

6. The disc membrane integrated high-quality miscellaneous water treatment apparatus according to claim 1, wherein A reflux pipeline (6) is arranged at the bottom of the sedimentation pool (3), one end of the reflux pipeline (6) is connected with the sedimentation pool (3), the other end is connected with the aerobic pool (2), and a sludge reflux pump (32) is arranged on the reflux pipeline (6).

7. The integrated disc membrane and high-quality miscellaneous water treatment device according to claim 1, characterized in that, The disc membrane filter pool (4) further comprises a disinfection and dosing device (42) for adding sterilization and disinfection drugs to the water body of the disc membrane filter pool (4).

8. The integrated disc membrane and high-quality miscellaneous water treatment device according to claim 3, characterized in that, A lifting pump (12) is arranged in the adjusting pool (1), the lifting pump (12) lifts water in the adjusting pool (1) to the aerobic pool (2), a connecting pipeline is arranged between the adjusting pool (1) and the aerobic pool (2), and a flow meter is arranged on the connecting pipeline.

9. The integrated disc membrane and high-quality miscellaneous water treatment device according to claim 3, characterized in that, The filling rate of the elastic three-dimensional filler (23) in the aerobic pool (2) is 30%, and the specification model of the elastic three-dimensional filler (23) in the aerobic pool (2) is 100*100*100mm.

10. The integrated disc membrane and high quality miscellaneous water treatment apparatus according to claim 3, wherein The gas-water ratio of the aerobic tank (2) is 12:1; the aeration disc ventilation capacity of the aeration device (22) is 2 cubic meters per aeration disc; the surface hydraulic load of the sedimentation tank (3) is 1.5 m 3 / (m 2 ·h).

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