Integrated sewage treatment equipment for reducing death rate of activated sludge

Abstract

The integrated sewage treatment equipment comprises an upper shell and a lower shell, a first supporting framework is fixedly connected to the bottom of the upper shell, and an adjusting chamber, an anaerobic chamber, an anoxic chamber and an aerobic chamber are sequentially arranged in the upper shell from left to right; a primary precipitation chamber, a secondary precipitation chamber, a clear water chamber and a sludge chamber are sequentially arranged in the lower shell from right to left; conical dirt collecting hoppers are arranged at the bottoms of the precipitation chamber and the secondary precipitation chamber; a first submersible sewage pump is mounted at the bottom of the primary precipitation chamber, an output port of the first submersible sewage pump is connected with a pipeline, and the pipeline is communicated with the anaerobic chamber; a second submersible sewage pump is mounted at the bottom of the second-stage precipitation chamber, an output port of the second submersible sewage pump is connected with a pipeline, and the pipeline is communicated with the sludge chamber. Sludge can be effectively prevented from being gathered and dead at dead corners of the bottom of the pool to cause deterioration of water; the problems that the occupied area is large, and transfer is inconvenient due to length limitation can be solved.

Description

Technical Field

[0001] The utility model relates to integrated sewage treatment equipment for reducing the mortality rate of activated sludge, and belongs to the technical field of sewage treatment. Background Art

[0002] AAO (anaerobic-anoxic-aerobic) is a biological denitrification and phosphorus removal process for sewage treatment. It is a combination of traditional activated mud, nitrification and denitrification, and biological phosphorus removal processes. The organic combination of three different environmental conditions and microbial flora types, anaerobic, anoxic, and aerobic, can simultaneously remove organic matter, denitrify, and remove phosphorus.

[0003] The bottom of the integrated treatment equipment currently using the AAO treatment process is a flat bottom structure. The activated sludge will accumulate in the four corners of the bottom of the primary sedimentation tank and the secondary sedimentation tank. After a long period of accumulation, the activated sludge will die, causing the treated water quality to deteriorate.

[0004] At present, the integrated processing equipment using AAO processing technology is all horizontally set up, which has the problem of occupying a large area and is inconvenient to transport due to length limitations.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] The utility model aims at the deficiencies in the background technology and provides an integrated sewage treatment equipment for reducing the mortality rate of activated sludge, which can effectively prevent the sludge from gathering and dying in the dead corners of the pool bottom, causing water quality deterioration; and can solve the problems of large footprint and inconvenient transportation due to length restrictions.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] An integrated sewage treatment device for reducing the mortality rate of activated sludge comprises an upper shell and a lower shell, wherein a first supporting frame fixedly connected to the upper shell is provided at the bottom, and a second supporting frame fixedly connected to the lower shell is provided at the bottom;

[0009] The upper shell is provided with a regulating chamber, an anaerobic chamber, an anoxic chamber and an aerobic chamber from left to right, and the lower shell is provided with a primary sedimentation chamber, a secondary sedimentation chamber, a clean water chamber and a sludge chamber from right to left.

[0010] Conical sewage hoppers are provided at the bottom of the sedimentation chamber and the secondary sedimentation chamber; a first submersible sewage pump is installed at the conical bottom of the conical sewage hopper in the primary sedimentation chamber, and a pipeline is connected to the output port of the first submersible sewage pump, which is connected to the anaerobic chamber after passing through the first supporting frame; a second submersible sewage pump is installed at the conical bottom of the conical sewage hopper in the secondary sedimentation chamber, and a pipeline is connected to the output port of the second submersible sewage pump, which is connected to the sludge chamber after passing through the first supporting frame.

[0011] Furthermore, connecting parts are provided around the bottom end of the upper shell and around the top end of the lower shell, and the connecting parts are fixed to the first supporting frame by bolts.

[0012] Furthermore, a sewage inlet is provided on the outer wall of the regulating chamber, and the regulating chamber, the anaerobic chamber, the anoxic chamber and the aerobic chamber are connected with each other by overflow.

[0013] Furthermore, the primary precipitation chamber is located directly below the aerobic chamber.

[0014] Furthermore, an overflow channel is provided on one side of the aerobic chamber away from the anoxic chamber, and the bottom of the overflow channel is connected to the primary sedimentation chamber through a pipeline, and the pipeline runs through the first supporting frame.

[0015] Furthermore, aerators are provided at the bottom of the anoxic chamber and the aerobic chamber, and the bottoms of the aerators are connected to the fans through pipelines, the pipelines are passed through the first supporting frame, and the fans are installed outside the ends of the first supporting frame.

[0016] Furthermore, the primary sedimentation chamber, the secondary sedimentation chamber, and the clean water chamber are connected to each other by overflow.

[0017] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0018] Conical sludge collecting hoppers are provided at the bottom of the primary sedimentation chamber and the secondary sedimentation chamber. The submersible sludge pump is located at the lowest point of the cone of the conical sludge collecting hopper, which can transfer all the sludge out to avoid the situation where the sludge accumulates and dies in the dead corner of the pool bottom, causing water quality deterioration.

[0019] The two processing shells in the utility model are arranged longitudinally, which can reduce the floor space and effectively utilize land resources. In addition, the transportation and assembly process of the shells are extremely convenient, and only bolts need to be inserted.

[0020] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2It is a schematic diagram of the internal structure of the utility model.

[0023] In the figure, 1-upper shell, 2-lower shell, 3-first supporting frame, 4-second supporting frame, 5-bolt, 6-adjusting chamber, 7-anaerobic chamber, 8-anoxic chamber, 9-aerobic chamber, 10-primary sedimentation chamber, 11-secondary sedimentation chamber, 12-clean water chamber, 13-sludge chamber, 14-overflow channel, 15-aerator, 16-fan, 17-conical sewage collecting hopper, 18-first submersible sewage pump, 19-second submersible sewage pump. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown together, the utility model provides an integrated sewage treatment equipment for reducing the mortality rate of activated sludge, including an upper shell 1 and a lower shell 2. The bottom of the upper shell 1 is provided with a first supporting frame 3 fixedly connected thereto, and the bottom of the lower shell 2 is provided with a second supporting frame 4 fixedly connected thereto.

[0026] Connecting parts are provided around the bottom of the upper shell 1 and around the top of the lower shell 2, and the connecting parts are fixed to the first support frame 3 by bolts 5. The upper shell 1 and the lower shell 2 are transported and transferred separately, and the assembly process is convenient, and only the bolts 5 need to be inserted.

[0027] The upper shell 1 is provided with a regulating chamber 6, an anaerobic chamber 7, an anoxic chamber 8 and an aerobic chamber 9 from left to right, and the lower shell 2 is provided with a primary sedimentation chamber 10, a secondary sedimentation chamber 11, a clean water chamber 12 and a sludge chamber 13 from right to left.

[0028] A sewage inlet is provided on the outer wall of the regulating chamber 6, and the regulating chamber 6, the anaerobic chamber 7, the anoxic chamber 8 and the aerobic chamber 9 are overflow-connected with each other. The water and sludge in the regulating chamber 6 can overflow into the anaerobic chamber 7, the anoxic chamber 8 and the aerobic chamber 9 in turn.

[0029] The primary sedimentation chamber 10 is located directly below the aerobic chamber 9 . An overflow channel 14 is provided on the side of the aerobic chamber 9 away from the anoxic chamber 8 . The bottom of the overflow channel 14 is connected to the primary sedimentation chamber 10 through a pipeline that passes through the first supporting frame 3 .

[0030] The bottom of the anoxic chamber 8 and the aerobic chamber 9 are both provided with an aerator 15, and the bottom of the aerator 15 is connected to the fan 16 through a pipeline, the pipeline is arranged in the first support frame 3, and the fan 16 is installed outside the end of the first support frame 3. The aerator 15 in the anoxic chamber 8 is opened at a fixed time, and the aerator 15 in the aerobic chamber 9 is always open.

[0031] The primary sedimentation chamber 10 , the secondary sedimentation chamber 11 , and the clean water chamber 12 are connected by overflows between adjacent chambers. The water and the incompletely settled sludge in the primary sedimentation chamber 10 overflow into the secondary sedimentation chamber 11 , and the clean water in the secondary sedimentation chamber 11 overflows into the clean water chamber 12 .

[0032] A conical dirt collecting hopper 17 is provided at the bottom of the primary sedimentation chamber 10 and the secondary sedimentation chamber 11 .

[0033] A first submersible sewage pump 18 is installed at the conical bottom of the conical sewage collecting hopper 17 in the primary sedimentation chamber 10. The output port of the first submersible sewage pump 18 is connected to a pipeline, which passes through the first supporting frame 3 and is connected to the anaerobic chamber 7. The sludge settled in the primary sedimentation chamber 10 is transferred to the anaerobic chamber 7 through the first submersible sewage pump 18.

[0034] A second submersible sewage pump 19 is installed at the conical bottom of the conical sewage collecting hopper 17 in the secondary sedimentation chamber 11. The output port of the second submersible sewage pump 19 is connected to a pipeline, which passes through the first supporting frame 3 and is connected to the sludge chamber 13. The settled sludge in the secondary sedimentation chamber 11 is transferred into the sludge chamber 13 through the second submersible sewage pump 19.

[0035] The specific working principle of this utility model:

[0036] The sewage enters the regulating chamber 6, the anaerobic chamber 7, the anoxic chamber 8 and the aerobic chamber 9 in sequence. The water and sludge after the sewage is regulated, anaerobic, anoxic and aerobic treatment overflow into the primary sedimentation chamber 10; after the sludge in the primary sedimentation chamber 10 is settled, it is returned to the anaerobic chamber 7 through the first submersible sewage pump 18 to mix with the sewage, and the polyphosphate microorganisms in the returned sludge release phosphorus to meet the bacteria's demand for phosphorus. The water and the sludge that has not been completely settled in the primary sedimentation chamber 10 enter the secondary sedimentation chamber 11; after the sludge in the secondary sedimentation chamber 11 is settled, it is transferred into the sludge chamber 13 through the second submersible sewage pump 19, and the clean water in the secondary sedimentation chamber 11 overflows into the clean water chamber 12.

[0037] Conical sludge collecting hoppers 17 are provided at the bottom of the primary sedimentation chamber 10 and the secondary sedimentation chamber 11. The submersible sewage pump is located at the lowest point of the cone of the conical sludge collecting hopper 17, which can transfer all the sludge out to avoid the situation where the sludge accumulates and dies in the dead corner of the pool bottom, causing water quality deterioration.

[0038] The two processing shells in the utility model are arranged longitudinally, which can reduce the floor space and effectively utilize land resources. In addition, the transportation and assembly process of the shells are extremely convenient, and only bolts need to be inserted.

[0039] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. An integrated sewage treatment equipment for reducing the mortality rate of activated sludge, characterized by: It comprises an upper shell (1) and a lower shell (2), wherein the bottom of the upper shell (1) is provided with a first supporting frame (3) fixedly connected thereto, and the bottom of the lower shell (2) is provided with a second supporting frame (4) fixedly connected thereto; The upper shell (1) is provided with a regulating chamber (6), an anaerobic chamber (7), an anoxic chamber (8) and an aerobic chamber (9) in sequence from left to right, and the lower shell (2) is provided with a primary sedimentation chamber (10), a secondary sedimentation chamber (11), a clean water chamber (12) and a sludge chamber (13) in sequence from right to left; The first sedimentation chamber (10) and the second sedimentation chamber (11) are both provided with a conical sewage collecting hopper (17) at the bottom. A first submersible sewage pump (18) is installed at the conical bottom of the conical sewage collecting hopper (17) in the first sedimentation chamber (10). The output port of the first submersible sewage pump (18) is connected to a pipeline, which passes through the first support frame (3) and is connected to the anaerobic chamber (7). A second submersible sewage pump (19) is installed at the conical bottom of the conical sewage collecting hopper (17) in the second sedimentation chamber (11). The output port of the second submersible sewage pump (19) is connected to a pipeline, which passes through the first support frame (3) and is connected to the sludge chamber (13).

2. The integrated sewage treatment equipment for reducing the mortality rate of activated sludge according to claim 1, characterized in that: Connecting parts are provided around the bottom end of the upper shell (1) and around the top end of the lower shell (2), and the connecting parts are fixed to the first supporting frame (3) by bolts (5).

3. The integrated sewage treatment equipment for reducing the mortality rate of activated sludge according to claim 1, characterized in that: A sewage inlet is provided on the outer wall of the regulating chamber (6), and the regulating chamber (6), the anaerobic chamber (7), the anoxic chamber (8) and the aerobic chamber (9) are connected to each other by overflow.

4. The integrated sewage treatment equipment for reducing the mortality rate of activated sludge according to claim 1, characterized in that: The primary precipitation chamber (10) is located directly below the aerobic chamber (9).

5. The integrated sewage treatment equipment for reducing the mortality rate of activated sludge according to claim 4, characterized in that: An overflow channel (14) is provided on a side of the aerobic chamber (9) away from the anoxic chamber (8), and the bottom of the overflow channel (14) is connected to the primary sedimentation chamber (10) via a pipeline, and the pipeline is arranged through the first supporting frame (3).

6. The integrated sewage treatment equipment for reducing the mortality rate of activated sludge according to claim 1, characterized in that: The bottom of the anoxic chamber (8) and the aerobic chamber (9) are both provided with an aerator (15), the bottom of the aerator (15) is connected to a fan (16) via a pipeline, the pipeline is passed through the first support frame (3), and the fan (16) is installed outside the end of the first support frame (3).

7. The integrated sewage treatment equipment for reducing the mortality rate of activated sludge according to claim 1, characterized in that: The primary sedimentation chamber (10), the secondary sedimentation chamber (11), and the clean water chamber (12) are adjacent to each other and are connected by overflow.

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