CN216191390U

CN216191390U - Novel sewage treatment of AO technology integration nitrogen and phosphorus removal jar

Info

Publication number: CN216191390U
Application number: CN202122260329.XU
Authority: CN
Inventors: 韩宏阳; 孟银忠; 黄思健; 戴小燕; 王攀
Original assignee: Shuiyi Holding Group Co ltd
Current assignee: Shuiyi Environmental Protection Group Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-04-05
Anticipated expiration: 2031-09-17

Abstract

The utility model provides a novel sewage treatment integration nitrogen and phosphorus removal jar of AO technology, it includes a jar body, jar body is including setting up the good oxygen pond on jar body upper portion and setting up the oxygen deficiency pond in jar body lower part, wherein the bottom in oxygen deficiency pond is provided with the water inlet, be connected with external inlet channel on this water inlet, and be provided with at least one impulse type mixer in jar internal bottom around the water inlet, top apart from jar body top five three fifths position at impulse type mixer is provided with one deck filtration membrane, this filtration membrane sets up the crossing department in good oxygen pond and oxygen deficiency pond, and be provided with many connecting tubes in good oxygen pond in filtration membrane's top, the lower tip of every connecting tube is connected with the micropore and is responsible for the ware, the upper end is connected with the aeration, the top in good oxygen pond still is provided with the gap. The utility model combines the anoxic tank and the aerobic tank into a whole in a vertical connection mode, and has the advantages of large height-diameter ratio, small occupied area, simple structure and the like.

Description

Novel sewage treatment of AO technology integration nitrogen and phosphorus removal jar

Technical Field

The utility model relates to a novel sewage treatment integrated nitrogen and phosphorus removal tank for an AO (anaerobic-anoxic-oxic) process, and relates to the technical field of environmental engineering.

Background

In recent years, the environmental protection situation of China is increasingly severe, and the sewage treatment industry is rapidly developed. Wherein, integration sewage treatment device is with its area is little, degree of automation is high, construction cycle is short, advantages such as convenient operation, favours in the sewage treatment field. Due to the rapid development of cities and towns, the treatment capacity of the original sewage treatment plant cannot meet the treatment requirement, and the integrated sewage treatment equipment is widely applied to the field of distributed sewage treatment in cities and towns.

The height of the existing integrated treatment device is generally 2-4 meters, the sewage treatment process is mostly the traditional AO process, namely, the front end anoxic tank is connected with the rear end aerobic tank in a connecting way, so that the tank body is mostly in a cuboid shape, and the occupied area is lower than that of the traditional concrete tank body, but the height space is still not fully utilized. In the cities which are rapidly developed at present, the urban sewage treatment capacity is insufficient due to the problems of old urban sewage pipelines, insufficient historical planning capacity and the like, a large amount of sewage directly overflows to urban rivers to cause serious pollution, and the distributed integrated sewage treatment equipment which has the advantages of short construction period, quick response and the like is used for rapidly solving the problems. Due to the limitation of old urban pipe networks, distributed integrated equipment is mostly treated in situ and nearby in situ. At present, most of integrated equipment still occupies a large area and is difficult to adapt to the current urban development form with precious soil. It is important to reduce the floor space of the integrated equipment to the maximum extent.

Disclosure of Invention

The utility model provides a novel AO process sewage treatment integrated nitrogen and phosphorus removal tank, which solves the problems of large occupied area and unstable system operation of the existing integrated equipment.

The purpose of the utility model is achieved by the following technical scheme: a novel sewage treatment integrated nitrogen and phosphorus removal tank of AO process comprises a tank body, wherein the tank body comprises an aerobic pool arranged at the upper part of the tank body and an anoxic pool arranged at the lower part of the tank body, wherein the bottom of the anoxic pond is provided with a water inlet which is connected with an external water inlet pipeline, and the bottom of the tank body around the water inlet is provided with at least one propelling type stirrer, a layer of filtering membrane is arranged above the propelling type stirrer and is three fifths away from the top of the tank body, the filtering membrane is arranged at the intersection of the aerobic tank and the anoxic tank, a plurality of connecting pipelines are arranged above the filtering membrane and positioned in the aerobic tank, the lower end part of each connecting pipeline is connected with a microporous aerator, the upper end part is connected with an aeration main pipe, the aeration main pipe is fixed on a fixing frame arranged at the top of the tank body through a triangular support, and the top of the aerobic tank is also provided with an overflow port.

Preferably, the method comprises the following steps: a return pipeline with a mixed liquid return pump is arranged in the aerobic tank, one end of the return pipeline is connected with the aerobic tank, the other end of the return pipeline is connected with the bottom of the anoxic tank, and water in the aerobic tank flows back to the anoxic tank to be purified again.

Preferably, the method comprises the following steps: the microporous aerators are arranged in three rows and a plurality of columns, and the row spacing between every two rows of the microporous aerators is the same.

Preferably, the method comprises the following steps: the number of the push-type mixers is two and the push-type mixers are symmetrically arranged, and the push-type mixers vertically lift in the aerobic tank through guide rails arranged on the inner side wall of the side body of the tank body.

Preferably, the method comprises the following steps: and activated sludge is cultured in both the aerobic tank and the anoxic tank.

Preferably, the method comprises the following steps: the tank body is an enamel assembling tank and is a cylindrical water container with the height-diameter ratio of 1: 1.4-1: 2.

Preferably, the method comprises the following steps: the volume ratio of the anoxic tank to the aerobic tank is 2: 3.

Preferably, the method comprises the following steps: the propelling agitator is a rapid mixing and agitating series propelling agitator and adopts a direct-connected structure.

The utility model combines the anoxic tank and the aerobic tank into a whole in a vertical connection mode, can greatly reduce the use area, and has the advantages of large height-diameter ratio, small occupied area, simple structure and the like.

Drawings

FIG. 1 is a top view of the present invention.

Fig. 2 is a cross-sectional view a-a of the present invention.

Fig. 3 is a cross-sectional view B-B of the present invention.

Detailed Description

The utility model will be described in detail below with reference to the following figures: as shown in figures 1-3, a novel sewage treatment integrated nitrogen and phosphorus removal tank of AO technology, it includes the jar body 1, the said jar body 1 includes setting up in the aerobic tank 2 of the upper portion of the jar body 1 and setting up in the anoxic tank 3 of the lower portion of the jar body 1, wherein there is a water inlet 4 in the bottom of the anoxic tank 3, connect with the external water inlet pipe 5 on this water inlet 4, and there is at least one propulsion agitator 6 in the bottom located in the jar body 1 around the water inlet 4, there is a layer of filtering membrane 16 in the position three fifths of the distance from the top of the jar body 1 above the propulsion agitator 6, this filtering membrane 16 is set up in the crossing place of aerobic tank 2 and anoxic tank 3, and locate in aerobic tank 2 and have many connecting lines 15 above the filtering membrane 16, the underpart of each connecting line 15 connects with the microporous aerator 8, the upper end links with the main pipe 7 of aeration, the aeration main pipe 7 is fixed on a fixing frame 13 arranged at the top of the tank body 1 through a triangular support 12, and the top of the aerobic tank 2 is also provided with an overflow gap 9.

A return pipeline 11 with a mixed liquid return pump 10 is arranged in the aerobic tank 2, one end of the return pipeline 11 is connected with the aerobic tank 2, the other end of the return pipeline is connected with the bottom of the anoxic tank 3, and water in the aerobic tank 2 flows back to the anoxic tank 3 to be purified again.

The microporous aerators 8 are arranged in three rows and multiple columns, the row spacing between every two rows of the microporous aerators 8 is the same, the row number and the column number of the microporous aerators can be adjusted according to the actual situation, not only the row spacing and the column spacing are limited to the above, but also the microporous aerators are lifting type microporous aerators, and the positions of the microporous aerators can be adjusted according to the actual situation.

The number of the propulsion mixers 6 is two and the two propulsion mixers are symmetrically arranged, and the propulsion mixers 6 vertically lift in the aerobic tank 2 through guide rails 14 arranged on the inner side wall of the side body of the tank body 1.

The volume ratio of the anoxic tank 2 to the aerobic tank 2 is 2:3, and activated sludge is cultured in both the aerobic tank 2 and the anoxic tank 3.

The number of the propulsion mixers 6 is two and the two propulsion mixers are symmetrically arranged, and the propulsion mixers 6 vertically lift in the aerobic tank 2 through the guide rails 14 arranged on the inner side wall of the side body of the tank body 1. The tank body 1 is an enamel assembling tank, and the tank body 1 is a cylindrical water container with the height-diameter ratio of 1: 1.4-1: 2.

The propelling type stirrer 6 is a rapid mixing and stirring series propelling type stirrer, adopts a direct-connected structure, has low energy consumption and large thrust, and can greatly save resources.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention.

Claims

1. The utility model provides a novel sewage treatment integration nitrogen and phosphorus removal jar of AO technology, it includes jar body (1), its characterized in that: the tank body (1) comprises an aerobic tank (2) arranged at the upper part of the tank body (1) and an anoxic tank (3) arranged at the lower part of the tank body (1), wherein the bottom of the anoxic tank (3) is provided with a water inlet (4), the water inlet (4) is connected with an external water inlet pipeline (5), at least one propulsion stirrer (6) is arranged at the bottom part of the tank body (1) around the water inlet (4), a layer of filtering membrane (16) is arranged above the propulsion stirrer (6) and three fifths of the top of the tank body (1), the filtering membrane (16) is arranged at the intersection of the aerobic tank (2) and the anoxic tank (3), a plurality of connecting pipelines (15) are arranged above the filtering membrane (16) in the aerobic tank (2), the lower end part of each connecting pipeline (15) is connected with a microporous aerator (8), and the upper end part is connected with an aeration main pipe (7), the aeration main pipe (7) is fixed on a fixed frame (13) arranged at the top of the tank body (1) through a triangular support (12); the top of the aerobic tank (2) is also provided with an overflow port (9).

2. The novel sewage treatment integrated nitrogen and phosphorus removal tank of AO process of claim 1, characterized in that: be equipped with return line (11) of a mixed liquid backwash pump (10) in area in good oxygen pond (2), good oxygen pond (2) are connected to this return line (11) one end, and the other end is connected with the bottom in oxygen deficiency pond (3), and the water in the good oxygen pond flows back to and purifies again in the oxygen deficiency pond.

3. The novel sewage treatment integrated nitrogen and phosphorus removal tank of AO process of claim 1, characterized in that: the connecting pipelines (15) are arranged in three rows and a plurality of columns, and the row spacing between every two rows of the connecting pipelines (15) is the same.

4. The novel sewage treatment integrated nitrogen and phosphorus removal tank of AO process of claim 1, characterized in that: the number of the propulsion mixers (6) is two and the two propulsion mixers are symmetrically arranged, and the propulsion mixers (6) vertically lift in the aerobic tank (2) through guide rails (14) arranged on the inner side wall of the side body of the tank body (1).

5. The novel sewage treatment integrated nitrogen and phosphorus removal tank of AO process of claim 1, characterized in that: activated sludge is cultured in both the aerobic tank (2) and the anoxic tank (3).

6. The novel sewage treatment integrated nitrogen and phosphorus removal tank of AO process of claim 1, characterized in that: the tank body (1) is an enamel assembling tank, and the tank body (1) is a cylindrical water container with the height-diameter ratio of 1: 1.4-1: 2.