CN217535594U

CN217535594U - Sewage treatment equipment

Info

Publication number: CN217535594U
Application number: CN202221677179.0U
Authority: CN
Inventors: 张波; 李春林; 蒋鑫; 赵栗笠; 王建军; 龚雪
Original assignee: Sichuan Development Environmental Science And Technology Research Institute Co ltd
Current assignee: Sichuan Development Environmental Science And Technology Research Institute Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-10-04
Anticipated expiration: 2032-07-01

Abstract

The utility model relates to a sewage treatment field especially relates to a sewage treatment device. The bottom of the secondary sedimentation tank is provided with a sludge lifting device which lifts sludge to a side flow tank, a heating device is arranged in the side flow tank, and a sludge return pipeline is arranged between the anoxic tank and the side flow tank. The utility model discloses a sewage treatment device, mud hoisting device holds back partial backward flow mud, and send into the sidestream pond and cultivate, set up heating device in the sidestream pond and heat mud, activation sludge activity, and microorganism biochemical reaction and hyperplasia, then flow back to the oxygen deficiency pond through mud return line again, can guarantee that the microorganism gets into the oxygen deficiency pond with better activity, improve sewage treatment efficiency, guarantee that the temperature of intaking is low, sewage treatment device normal operating under the low condition of pollutant concentration, only need heat the sidestream pond simultaneously, need not heat other, can practice thrift the energy consumption greatly.

Description

Sewage treatment equipment

Technical Field

The utility model relates to a sewage treatment field especially relates to a sewage treatment device.

Background

In the low-temperature and high-altitude areas at the present stage, due to the limitation of local water use habits and weather conditions, the water use habits of residents in winter in the low-temperature and high-altitude areas adopt a 'long-running water' mode to prevent a tap water pipe from freezing, so that the quality of collected sewage in a sewage plant is low, and the low quality of the collected sewage can cause the problems of low-load sludge death, sludge expansion and the like in the sewage plant. And tap water in low-temperature and high-altitude areas mostly comes from snow melting water, the inlet water of sewage plants in winter is at 2-4 ℃, the microbial activity is low, and the sewage treatment efficiency is low. Based on the above situation, it is very difficult to operate the ordinary AO, CASS and other processes in low-temperature and high-altitude areas.

SUMMERY OF THE UTILITY MODEL

To low temperature, high altitude area integration sewage treatment device winter because of the low sewage treatment device of the temperature of intaking quality of water is low on the contrary, the difficult problem of operation, the utility model provides a guarantee low temperature operation, improve sewage treatment efficiency's sewage treatment device.

The utility model adopts the technical proposal that: sewage treatment equipment, including oxygen deficiency pond, anaerobism pond, good oxygen pond, two heavy ponds and the sidestream pond that sets gradually the bottom in two heavy ponds be provided with mud hoisting device, this mud hoisting device promotes mud to the sidestream pond in be provided with heating device, oxygen deficiency pond and sidestream pond between be provided with mud return line.

For realizing better the utility model discloses sidestream pond upper portion be provided with heat transfer device, mud hoisting device's ejection of compact part pass through this heat transfer device with mud return line heat transfer.

In order to better realize the utility model, the heat exchange device comprises a heat exchange pool, a first liquid inlet pipe, a first liquid outlet pipe, a second liquid inlet pipe and a second liquid outlet pipe which extend to the outside of the heat exchange pool are arranged on the heat exchange pool, and one end of the first liquid inlet pipe positioned in the heat exchange pool is communicated with one end of the first liquid outlet pipe positioned in the heat exchange pool; one end of the second liquid inlet pipe positioned in the heat exchange tank is communicated with one end of the second liquid outlet pipe positioned in the heat exchange tank; the first liquid inlet pipe is communicated with a discharge part of the sludge lifting device, and the second liquid outlet pipe is communicated with a feeding part of the sludge backflow pipeline.

In order to better realize the utility model, the liquid level of the side flow pool is higher than that of the anoxic pool.

For better realizing the utility model, the upper part of the secondary sedimentation tank is provided with a central guide cylinder.

In order to better realize the utility model, the aerobic tank is provided with a packing layer.

In order to better realize the utility model, the packing layer comprises a net cage, and a plurality of spherical packing materials are arranged in the net cage.

In order to better realize the utility model, the aeration device is arranged in the aerobic tank, the secondary sedimentation tank and the side flow tank, and a plurality of corresponding aeration heads are arranged at the bottom of the aerobic tank.

In order to better realize the utility model, the bottom of the aerobic tank is provided with a nitrifying liquid reflux device which is connected with the anoxic tank through a reflux pipe.

In order to better realize the utility model, the bottom of the anoxic tank and the anaerobic tank are respectively provided with a first stirring device and a second stirring device.

The utility model has the advantages that:

compared with the prior art, the utility model discloses a sewage treatment device, through the oxygen deficiency pond, the anaerobism pond, good oxygen pond, two heavy ponds, the sidestream pond, mud hoisting device, the cooperation of heating device and mud return line etc, mud hoisting device holds back partial backward flow mud, and send into the sidestream pond and cultivate, set up heating device in the sidestream pond and heat mud, activation mud activity, and microorganism biochemical reaction and hyperplasia, then flow back to the oxygen deficiency pond through mud return line again, can guarantee that the microorganism gets into the oxygen deficiency pond with better activity, improve sewage treatment efficiency, guarantee to intake low temperature, sewage treatment device normal operating under the low condition of pollutant concentration, only need heat the sidestream pond simultaneously, need not heat other, can practice thrift the energy consumption greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a sewage treatment apparatus of the present invention;

FIG. 2 is a schematic view of a heat exchange device of the sewage treatment apparatus of the present invention;

in the figure, 1-anoxic tank, 2-anaerobic tank, 3-aerobic tank, 4-secondary sedimentation tank, 5-side flow tank, 6-first stirring device, 7-second stirring device, 8-aeration head, 9-packing layer, 10-nitrifying liquid reflux device, 11-central guide cylinder, 12-sludge lifting device, 13-heating device, 14-heat exchange device, 15-air blower, 16-sludge reflux pipeline, 17-reflux pipe, 18-heat exchange tank, 19-first liquid inlet pipe, 20-first liquid outlet pipe, 21-second liquid inlet pipe, 22-second liquid outlet pipe.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are illustrative only and are not intended to be limiting.

As shown in fig. 1 and 2, the sewage treatment equipment of the present invention comprises an anoxic tank 1, an anaerobic tank 2, an aerobic tank 3, a secondary sedimentation tank 4 and a lateral flow tank 5, wherein the anoxic tank 1, the anaerobic tank 2, the aerobic tank 3, the secondary sedimentation tank 4 and the lateral flow tank 5 are sequentially arranged, the bottom of the secondary sedimentation tank 4 is provided with a sludge lifting device 12, the sludge lifting device 12 lifts sludge to the lateral flow tank 5, the lateral flow tank 5 is provided with a heating device 13, and a sludge return pipeline 16 is arranged between the anoxic tank 1 and the lateral flow tank 5. The utility model discloses a sewage treatment device, through oxygen deficiency pond 1, anaerobism pond 2, good oxygen pond 3, two heavy ponds 4, sidestream pond 5, mud hoisting device 12, the cooperation of heating device 13 and mud return line 16 etc, mud hoisting device 12 holds back partial backward flow mud, and send into sidestream pond 5 and cultivate, set up heating device 13 in the sidestream pond 5 and heat mud, activation mud activity, and microorganism biochemical reaction and hyperplasia, then 16 backward flows the oxygen deficiency ponds through mud return line again, can guarantee that the microorganism gets into oxygen deficiency pond 1 with better activity, improve sewage treatment efficiency, guarantee to be low at the temperature of intaking, sewage treatment device normal operating under the low condition of pollutant concentration, only need heat sidestream pond 5 simultaneously, need not heat other, can practice thrift the energy consumption greatly. Preferably, the inner wall of the lateral flow cell 5 is provided with a heat insulation layer, so that the effects of heat insulation and energy saving are achieved.

Preferably, a heat exchange device 14 is arranged at the upper part of the sidestream pool 5, and the discharge part of the sludge lifting device 12 exchanges heat with the sludge return pipeline 16 through the heat exchange device 14, so that the sludge lifted into the sidestream pool 5 by the sludge lifting device 12 is firstly subjected to heat absorption by the heat exchange device 14, and the heat of the sludge entering the sludge return pipeline 16 is reserved as much as possible, thereby reducing heat loss and saving energy consumption. Preferably, the heat exchange device 14 includes a heat exchange tank 18, a first liquid inlet pipe 19, a first liquid outlet pipe 20, a second liquid inlet pipe 21 and a second liquid outlet pipe 22 are arranged on the heat exchange tank 18 and extend to the outside of the heat exchange tank 18, and one end of the first liquid inlet pipe 19 located inside the heat exchange tank 18 is communicated with one end of the first liquid outlet pipe 20 located inside the heat exchange tank 18; one end of the second liquid inlet pipe 21 positioned in the heat exchange tank 18 is communicated with one end of the second liquid outlet pipe 22 positioned in the heat exchange tank 18; the first liquid inlet pipe 19 is communicated with the discharging part of the sludge lifting device 12, and the second liquid outlet pipe 22 is communicated with the feeding part of the sludge return pipe 16. With the design, the sludge lifted into the sidestream pool 5 by the sludge lifting device 12 enters from the first liquid inlet pipe 19, and flows out from the first liquid outlet pipe 20 into the sidestream pool 5; the heated sludge in the lateral flow pool 5 enters from the second liquid inlet pipe 21 and enters from the second liquid outlet pipe 22 into the sludge return pipe 16; the heat exchange is carried out in the heat exchange tank 18, so that the heat of the sludge entering the sludge return pipeline 16 is reserved as much as possible, the heat loss is reduced, and the energy consumption is saved.

Preferably, the liquid level of the side-stream pool 5 is higher than that of the anoxic pool 1, so that after the design, the sludge in the sludge return pipeline 16 can be returned to the anoxic pool 1 by means of gravity, a pump can be omitted, and energy consumption can be saved. Preferably, a central guide shell 11 is arranged at the upper part of the secondary sedimentation tank 4.

Preferably, a packing layer 9 is arranged in the aerobic tank 3. Further preferably, the filler layer 9 includes a net cage, and a plurality of spherical fillers are arranged in the net cage.

Preferably, the system also comprises an air blower 15, the aerobic tank 3, the secondary sedimentation tank 4 and the lateral flow tank 5 are all provided with aeration devices connected with the air blower 15, and the bottom of the aerobic tank 3 is also provided with a plurality of corresponding aeration heads 8.

Preferably, a nitrifying liquid reflux device 10 is arranged at the bottom of the aerobic tank 3, and the nitrifying liquid reflux device 10 is connected with the anoxic tank 1 through a reflux pipe 17.

Preferably, the bottom of the anoxic tank 1 and the bottom of the anaerobic tank 2 are respectively provided with a first stirring device 6 and a second stirring device 7, so that sludge can be conveniently and uniformly stirred, microorganisms can be uniformly distributed, and the decontamination efficiency is improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Sewage treatment device, its characterized in that: including oxygen deficiency pond (1), anaerobism pond (2), good oxygen pond (3), two heavy ponds (4) and sidestream pond (5) that set gradually the bottom of two heavy ponds (4) be provided with mud hoisting device (12), this mud hoisting device (12) promote mud to sidestream pond (5) in be provided with heating device (13), oxygen deficiency pond (1) and sidestream pond (5) between be provided with mud return line (16).

2. The sewage treatment apparatus according to claim 1, wherein: a heat exchange device (14) is arranged at the upper part of the lateral flow pool (5), and the discharge part of the sludge lifting device (12) exchanges heat with the sludge return pipeline (16) through the heat exchange device (14).

3. The sewage treatment apparatus according to claim 2, wherein: the heat exchange device (14) comprises a heat exchange pool (18), wherein a first liquid inlet pipe (19), a first liquid outlet pipe (20), a second liquid inlet pipe (21) and a second liquid outlet pipe (22) which extend to the outside of the heat exchange pool (18) are arranged on the heat exchange pool (18), and one end, positioned inside the heat exchange pool (18), of the first liquid inlet pipe (19) is communicated with one end, positioned inside the heat exchange pool (18), of the first liquid outlet pipe (20); one end of the second liquid inlet pipe (21) positioned in the heat exchange pool (18) is communicated with one end of the second liquid outlet pipe (22) positioned in the heat exchange pool (18); the first liquid inlet pipe (19) is communicated with the discharge part of the sludge lifting device (12), and the second liquid outlet pipe (22) is communicated with the feed part of the sludge return pipe (16).

4. The sewage treatment apparatus of claim 3, wherein: the liquid level of the side flow pool (5) is higher than that of the anoxic pool (1).

5. The sewage treatment apparatus of claim 1, wherein: the upper part of the secondary sedimentation tank (4) is provided with a central guide shell (11).

6. The sewage treatment apparatus of claim 1, wherein: a packing layer (9) is arranged in the aerobic tank (3).

7. The sewage treatment apparatus of claim 6, wherein: the packing layer (9) comprises a net cage, and a plurality of spherical packing materials are arranged in the net cage.

8. The sewage treatment apparatus of claim 1, wherein: the device is characterized by further comprising an air blower (15), wherein the aerobic tank (3), the secondary sedimentation tank (4) and the lateral flow tank (5) are respectively provided with an aeration device connected with the air blower (15), and the bottom of the aerobic tank (3) is also provided with a plurality of corresponding aeration heads (8).

9. The sewage treatment apparatus of claim 1, wherein: the bottom of the aerobic tank (3) is provided with a nitrifying liquid reflux device (10), and the nitrifying liquid reflux device (10) is connected with the anoxic tank (1) through a reflux pipe (17).

10. The sewage treatment apparatus of claim 1, wherein: the bottom of the anoxic tank (1) and the bottom of the anaerobic tank (2) are respectively provided with a first stirring device (6) and a second stirring device (7).