Upward flow MABR water treatment device

Abstract

The utility model discloses an upward flow MABR water treatment device, and relates to the technical field of sewage treatment, a base is arranged at the bottom of a box body, the box body mainly comprises a water inlet area, an MABR treatment area, a filtering area and a water outlet area, and the water inlet area, the MABR treatment area, the filtering area and the water outlet area are arranged from bottom to top along the water flow direction; the front end of the water inlet area is provided with a water inlet pipe, an electric control valve, a check valve and a water inlet, the water inlet area is provided with an inlet water distributor close to the lower part of the MABR treatment area, nitrogen and carbon in the tail water of the municipal sewage treatment plant are efficiently removed under the anoxic environment of an MABR membrane, pollutants are further degraded through filler filtration, and the advanced treatment of the tail water of the municipal sewage treatment plant is realized. The device can be quickly put into use, and has the advantages of safety, reliability, small occupied area, improved use efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of upward flow MABR water treatment device, it is related to sewage treatment technical field. BACKGROUND

[0002] Urban sewage treatment technology matures gradually, with the rapid development of economy, the water quality index requirement of sewage treatment is higher and higher, many new technologies gradually rise. Among them, MABR technology has been widely used in surface water body governance and urban sewage treatment plant upgrading process, but also needs to reduce cost and be combined with other processes.

[0003] In the upgrading process of water quality in urban sewage treatment plant, the part of upgrading and efficiency improvement in the improved method is divided into biochemical treatment unit and sewage treatment plant tail water unit, most of the methods are to add enhanced treatment unit in biochemical treatment unit, but part of the enhanced treatment unit is set in the end, and the tail water of urban sewage treatment plant is strengthened, using the good impact load capacity of MABR technology, combined with filtration system, a set of upward flow MABR water treatment device is developed, which effectively reduces the pollution of pollutants to receiving water body after treatment. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of upward flow MABR water treatment device, MABR membrane processing unit is installed in the lower part of device, and filtration system is set in the upper part, the pollutants of tail water of urban sewage treatment plant are removed in MABR processing area, and then the pollutants are further removed by filtration system, and the system is discharged, which can realize the depth treatment of tail water of urban sewage treatment plant, rapid use, safe and reliable, small floor area, improve use efficiency.

[0005] The utility model is realized by the following technical solutions:

[0006] The upward flow MABR water treatment device is characterized in that the bottom of the box is provided with a base, the box is mainly composed of a water inlet area, a MABR treatment area, a filtration area and a water outlet area, and the water inlet area, the MABR treatment area, the filtration area and the water outlet area are arranged from bottom to top along the water flow direction; a water inlet pipe, an electric control valve, a check valve and a water inlet are arranged at the front end of the water inlet area, and a water inlet distributor is arranged near the lower part of the MABR treatment area.

[0007] The MABR treatment area is mainly composed of an air inlet, a MABR treatment unit and a filter screen plate, the MABR treatment unit includes a MABR membrane assembly, a gas supply branch pipe, a membrane support and a support plate, the MABR membrane assemblies are connected by the gas supply branch pipe, and are fixed on the support plate of the membrane support; the filter screen plate is arranged at the bottom of the MABR treatment area to the filtration area.

[0008] The filter area comprises a filter water inlet cap, a filler area and an overflow weir, the filter water inlet cap is arranged on the upper end of the filter screen plate, the filler area is arranged on the upper part of the filter water inlet cap, a backwashing water outlet is arranged on the lower part of the filler area, an electric control valve and a check valve are arranged on the pipeline connected with the backwashing water outlet, and the overflow weir is arranged on the side of the clean water area above the filler area.

[0009] The water outlet area is arranged on the side of the overflow weir close to the filter area, a water outlet discharge pipe is arranged in the water outlet area, and an electric control valve is arranged on the discharge pipe.

[0010] Further, the height of the water inlet area is 200 mm or more.

[0011] Further, the number of support plates of the MABR treatment area is 3 or more, and 3 or more MABR membrane assemblies are arranged on each support plate; and the support plate is a grid plate.

[0012] Further, the water inlet distributor of the water inlet area has a diameter of 20-50 mm and is uniformly arranged on the upper part of the water inlet area.

[0013] Further, one end of the air inlet of the MABR treatment area is connected with an external air source, and the other end is connected with a gas supply branch pipe between the MABR membrane assemblies of the MABR treatment area.

[0014] Further, the mesh size of the filter screen plate of the MABR treatment area is less than 2 mm.

[0015] Further, the height of the filter water inlet cap to the filler area of the filter area is 200-500 mm; and the filter water inlet cap has a one-way control valve function.

[0016] Further, the height of the filler of the filter area is 1-2 m, and the filler is selected from one or more of granular quartz sand, manganese sand and granular activated carbon.

[0017] Further, the height of the overflow weir of the filter area is 100-300 mm.

[0018] The upflow MABR water treatment device integrates MABR membrane assemblies and filler and other water treatment equipment materials into an upflow water treatment device, water in the device flows from bottom to top through the water inlet area, the MABR treatment area and the filter area, nitrogen and carbon in tail water of a municipal sewage treatment plant are efficiently removed under the anoxic environment of the MABR membrane, pollutants are further degraded through the filler, and deep treatment of the tail water of the municipal sewage treatment plant is realized. The device can be quickly put into use, is safe and reliable, has a small floor area, and has the advantages of improving use efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] ATTACHMENT Figure 1 It is a facade structure schematic diagram of the utility model.

[0020] Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application. Figure 2 Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application.

[0021] Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application. Figure 3 Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application.

[0022] Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application. Figure 4 Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application.

[0023] Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application. Figure 5 Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application.

[0024] Figure 1 is a schematic diagram of the front view structure of the MABR treatment unit of the present application. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, refer to the accompanying drawings and specific embodiments, and the present application will be further described below. Figures 1-5

[0026] ​The upflow MABR water treatment device is provided with a base 1 at the bottom of a box 2, and the box 2 is mainly composed of a water inlet area 3, a MABR treatment area 4, a filtering area 5 and a water outlet area 6, which are arranged from bottom to top along the water flow direction; the water inlet area 3 is provided with a water inlet pipe 301, an electric control valve 302, a check valve 303 and a water inlet 304 at the front end, and is provided with a water inlet distributor 305 close to the lower part of the MABR treatment area 4; the MABR treatment area 4 is mainly composed of an air inlet 401, a MABR treatment unit 402 and a filter screen plate 403, the MABR treatment unit 402 comprises a MABR membrane assembly 4021, a gas supply branch pipe 4022, a membrane support 4023 and a support plate 4024, the MABR membrane assemblies 4021 are connected by the gas supply branch pipes 4022 and are fixed on the support plate 4024 of the membrane support 4023, and the filter screen plate 403 is arranged at the bottom of the MABR treatment area 4 to the filtering area 5; the filtering area 5 comprises a filtering water inlet cap 501, a filler area 502 and an overflow weir 503, the filtering water inlet cap 501 is arranged at the upper end of the filter screen plate 403, the filler area 502 is arranged at the upper part of the filtering water inlet cap 501, a backwashing water outlet 504 is arranged at the side of the lower part of the filler area 502, the electric control valve 302 and the check valve 303 are arranged on the pipeline connected with the backwashing water outlet 504, and the overflow weir 503 is arranged at the side of the clear water area above the filler area 502; the water outlet area 6 is arranged at one side of the overflow weir 503 close to the filtering area 5, and a water outlet discharge pipe 601 is arranged in the water outlet area 6, and the electric control valve 302 is arranged on the discharge pipe; wherein one end of the air inlet 401 of the MABR treatment area 4 is connected with an external gas source, and the other end is connected with the gas supply branch pipe 4022 between the MABR membrane assemblies 4021 of the MABR treatment area 4.

[0027] Example 1: A certain town sewage treatment plant treats 50000 m 3 / d, and selects 500 m 3 / d of tail water of the sewage treatment plant as the demonstration project water quantity, and uses two sets of 250 m 3 / d upflow MABR water treatment devices in parallel, wherein the parameters of a single set of upflow MABR water treatment device are as follows in addition to meeting the above requirements:

[0028] The water inlet area 3 is set to a height of 300 mm, the water inlet distributor 305 of the water inlet area 3 is selected to have a diameter of 25 mm, and 25 groups of the water inlet distributor 305 are evenly arranged on the upper portion of the water inlet area 3; the MABR treatment area 4 is internally provided with five grid plate type support plates 4024, 15 groups of MABR membrane assemblies 4021 are arranged on each support plate 4024, the material of the grid plate type support plate 4024 is selected to be plastic material or glass fiber material with a certain strength, the MABR treatment area 4 is provided with a filter screen plate 403 with a mesh size of 1 mm; the filter area 5 is provided with a filter water inlet cap 501 with a one-way control valve function to the filler area 502 with a height of 300 mm, a total of 25 groups of the filter water inlet cap 501 are arranged, the filler height of the filter area 5 is 1.5 m, the filler is selected to be granular quartz sand, and the overflow weir 503 of the filter area 5 has a height of 200 mm.

[0029] In the initial operation, the biological membrane is hung and domesticated in the MABR treatment area 4, after the domestication of the microbial membrane is completed, normal water is fed, the hydraulic retention time is changed from large to small, after continuous water feeding and discharging, the purification treatment of the tail water of the urban sewage treatment plant is realized, the hydraulic retention time is selected and adjusted according to the treatment requirement, and the treated water can meet the water quality requirement of the treated water.

[0030] The above embodiment is only used for explaining the technical concept and characteristics of the utility model, the purpose is to enable the ordinary skilled in the art to understand the content of the utility model and to implement, and cannot limit the protection scope of the utility model. Any skilled person in the art can replace or change the technical range of the utility model according to the technical scheme and concept of the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An upflow MABR water treatment device, characterized by: The box body is mainly composed of a water inlet area, a MABR treatment area, a filter area and a water outlet area, and is composed of the water inlet area, the MABR treatment area, the filter area and the water outlet area from bottom to top along the water flow direction; the water inlet area is provided with a water inlet pipe, an electric control valve, a check valve and a water inlet at the front end; the water inlet area is provided with a water distribution device close to the lower part of the MABR treatment area; The MABR treatment area is mainly composed of an air inlet, a MABR treatment unit and a filter screen plate, the MABR treatment unit comprises a MABR membrane assembly, a gas supply branch pipe, a membrane support and a support plate, the MABR membrane assemblies are connected by the gas supply branch pipe and are fixed on the support plate of the membrane support, and the filter screen plate is arranged at the bottom of the MABR treatment area to the filter area; The filter area comprises a filter water inlet cap, a filler area and an overflow weir, the filter water inlet cap is arranged at the upper end of the filter screen plate, the filler area is arranged on the upper part of the filter water inlet cap, a backwashing drainage port is arranged on the lower part of the filler area, an electric control valve and a check valve are arranged on the pipeline connected with the backwashing drainage port, and the overflow weir is arranged on the side surface of the clear water area above the filler area; The water outlet area is arranged on one side of the overflow weir close to the filter area, a water outlet discharge pipe is arranged in the water outlet area, and an electric control valve is arranged on the discharge pipe.

2. The upflow MABR water treatment device of claim 1, wherein: The height of the water inlet area is 200 mm or more, and the water distribution device of the water inlet area is uniformly arranged on the upper part of the water inlet area and has a diameter of 20 mm to 50 mm.

3. The upflow MABR water treatment device of claim 1, wherein: The number of support plates of the MABR treatment area is 3 or more, and each support plate is provided with 3 or more MABR membrane assemblies; the support plate is a grid plate, and the filter screen plate has a mesh size of less than 2 mm.

4. The upflow MABR water treatment device of claim 1, wherein: One end of the air inlet of the MABR treatment area is connected with an external gas source, and the other end is connected with the gas supply branch pipe between the MABR membrane assemblies of the MABR treatment area.

5. The upflow MABR water treatment device of claim 1, wherein: The height of the filter water inlet cap to the filler area of the filter area is 200 mm to 500 mm; and the filter water inlet cap has a one-way control valve function.

6. The upflow MABR water treatment device of claim 1, wherein: The height of the filler area of the filter area is 1 m to 2 m.

7. The upflow MABR water treatment device of claim 1, wherein: The height of the overflow weir of the filter area is 100 mm to 300 mm.

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