CN216038820U

CN216038820U - Sewage sedimentation tank of baileke technology

Info

Publication number: CN216038820U
Application number: CN202122506997.6U
Authority: CN
Inventors: 刘生国; 彭荣; 杨宗雷; 彭继伟; 冯梅
Original assignee: Wuhan Sentai Environmental Protection Co ltd
Current assignee: Wuhan Sentai Environmental Protection Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-15
Anticipated expiration: 2031-10-18

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage sedimentation tank of a Baileke process, wherein a tank body is arranged below a horizontal ground surface, side slopes are formed on two opposite sides of the tank body, water outlet grooves communicated with the tank body are respectively formed in the tops of the two side slopes, at least one layer of impermeable membrane is laid on the inner wall of the tank body, two partition components are respectively and fixedly arranged at the connecting positions of the two side slopes and the inner bottom wall of the tank body, the tank body is divided into two sedimentation areas respectively positioned on the left side and the right side and an aerobic area positioned between the two sedimentation areas by the two partition components, a plurality of water channel passages communicated with the aerobic areas are respectively arranged at the bottoms of the two partition components, and the aeration components are arranged in the aerobic area. The problem of do not have the place of installing the aeration pipe in the current sedimentation tank and easily become the stagnant water region, cause the sedimentation tank utilization ratio to reduce is solved.

Description

Sewage sedimentation tank of baileke technology

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage sedimentation tank of a Pleke process.

Background

The pelek process is an activated sludge process for treating sewage by using natural depression or pond as reaction tank, laying impervious film on the inner wall of the tank and adopting suspension chain aeration mode, and its most important characteristics are low investment and short construction period.

The traditional Baileke reaction tank is usually dug on site according to local conditions. Due to the restriction of geological conditions and the requirement of an impermeable film laying process, slopes must be set around the bailey pool during excavation, and a slope setting ratio of 1:1-1:2 is usually adopted. In addition, because of the adoption of a suspension chain aeration mode, the suspended aeration pipe is in a ceaselessly swinging state during aeration, and a certain safety distance needs to be reserved between the aeration pipe and the side slope when the aeration pipe is installed in order to prevent the aeration pipe from impacting and damaging an anti-seepage film of the side slope due to swinging. Because the depth of the Brazier tank is about 5m generally, the Brazier tank means that the width of 5-10m around the tank is wasted wastefully because an aerator pipe cannot be installed to form a dead water area, and because aeration stirring is not carried out for a long time, a large amount of biochemical sludge is accumulated in the area frequently, and because oxygen is lacked for a long time, the sludge floats upwards and forms scum, so that the quality of treated effluent is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a sewage sedimentation tank of the berek process, which is used to solve the problem that the existing sedimentation tank is prone to become a dead water area where no aeration pipe is installed, and the utilization rate of the sedimentation tank is reduced.

The utility model provides a sewage sedimentation tank of a Pleke process, which comprises

The anti-seepage water tank comprises a tank body, wherein the tank body is arranged below a horizontal ground surface, side slopes are formed on two opposite sides of the tank body, water outlet grooves communicated with the tank body are formed in the tops of the two side slopes respectively, and at least one anti-seepage film is laid on the inner wall of the tank body;

the two separation assemblies are fixedly arranged at the connecting parts of the two side slopes and the bottom wall in the tank body respectively, divide the tank body into two sedimentation regions respectively positioned at the left side and the right side and an aerobic region positioned in the middle of the two sedimentation regions, and the bottoms of the two separation assemblies are provided with a plurality of water channel passages communicated with the two sedimentation regions and the aerobic region;

and the aeration component is arranged in the aerobic zone, and sewage purified by the aerobic zone is output through the water outlet grooves at the tops of the two sedimentation zones so as to increase the utilization rate of the pool body.

Preferably, the separation assembly comprises a buttress fixedly arranged on the bottom wall in the tank body, a plurality of stand columns fixedly arranged on the buttress and a partition plate fixedly connected with the stand columns, and a plurality of water channels for communicating the sedimentation region with the aerobic region are arranged at the bottom of the partition plate.

Preferably, the aeration assembly comprises an aeration main pipe arranged at the top of the aerobic area and a plurality of catenary aeration pipelines fixedly arranged on the aeration main pipe at intervals, the bottoms of the catenary aeration pipelines extend into the aerobic area, and the bottoms of the catenary aeration pipelines and the inner bottom wall of the pool body have a height difference.

Preferably, the separation assembly further comprises an embedded plate fixedly arranged on the buttress, and the bottom of the upright post is fixedly connected with the embedded plate through welding or threads.

Preferably, E-shaped locks for fixing the impermeable membrane are arranged on the periphery of the outer side of the embedded plate.

Preferably, the partition board is fixedly connected with one side of the plurality of the upright columns, which is close to the settling area, and a bending part is arranged at the bottom of the partition board.

Preferably, a sludge return channel is formed between the partition plate and the side slope.

Preferably, the separator is a stainless steel plate, a carbon steel plate, a PE plate or a PP plate.

Preferably, the barrier membrane is a HDPE barrier membrane.

Preferably, the slope ratio of the side slope is 1:1-1: 2.

The utility model has the beneficial effects that: the utility model provides a sewage sedimentation tank of hundred lenk technology, set up in the pond through two partition assembly, can make the side slope part of pond body both sides as the sedimentation zone, the middle part is as good oxygen region, the pond volume utilization ratio of sedimentation tank has been improved effectively, sewage after through good oxygen region purification exports through the play basin at two sedimentation zone tops, can make the sewage flow of sedimentation zone, the mud of sediment passes through gravity and slides back to the pond body formation inner loop along the side slope, do not need to build the sedimentation tank newly in addition, saved mud backwash pump, equipment such as mud scraper, engineering investment and working costs have been reduced.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a top view of a sewage sedimentation tank of a Pleke process of the present invention;

FIG. 2 is a front view of a sewage sedimentation tank of a Pleke process of the present invention;

FIG. 3 is an enlarged schematic view of A in FIG. 2;

FIG. 4 is a partial schematic view of a sewage settling tank of a Pleke process of the present invention;

fig. 5 is a schematic view of the structure of the separator of the present invention.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.

The utility model provides a sewage sedimentation tank of a Pleke process, which comprises a tank body 1, two partition components 2 and an aeration component 3, wherein the two partition components 2 are fixedly arranged in the tank body 1, the tank body 1 is divided into sedimentation areas at two sides and an aerobic area positioned between the two sedimentation areas by the two partition components 2, and the aeration component 3 is arranged in the aerobic area, so that sewage is treated in the aerobic area and then is discharged from the two sedimentation areas respectively, and the utilization rate of the tank body 1 is increased.

The pool body 1 is arranged below a horizontal ground, two opposite sides of the pool body 1 are both formed with side slopes 11, the tops of the two side slopes 11 are respectively provided with a water outlet groove 12 communicated with the pool body 1, and the inner wall of the pool body 1 is paved with at least one layer of impermeable membrane 13; wherein, the slope ratio of the side slope 11 is 1:1-1:2, in the specific embodiment, the slope ratio of the side slope 11 is 1:1, the impermeable membrane 13 is the HDPE impermeable membrane 13, and the HDPE impermeable membrane 13 has good moisture resistance and leakage resistance, so that the method is very suitable for the fields of engineering seepage prevention, breeding seepage prevention, basement seepage prevention, artificial lake seepage prevention, garbage landfill seepage prevention and the like.

Two partition assemblies 2, it sets firmly respectively in the junction of two slopes 11 and cell body 1 interior diapire, and two partition assemblies 2 divide cell body 1 into two sedimentation region 1a that are located the left and right sides respectively and lie in the aerobic zone 1b in the middle of two sedimentation region 1a, and the bottom of two partition assemblies 2 all is provided with a plurality of water route passageways 23a that supply to be linked together in two sedimentation region 1a and aerobic zone 1 b.

The aeration component 3 and the aeration component 3 are arranged in the aerobic zone 1b, and the sewage purified by the aerobic zone 1b is output through the water outlet grooves 12 at the tops of the two sedimentation zones 1a so as to increase the utilization rate of the tank body 1.

Specifically, as shown in fig. 3 and 4, the two partition assemblies 2 include a buttress 21 fixed on the inner bottom wall of the tank body 1, a plurality of pillars 22 fixed on the buttress 21, and a partition plate 23 fixedly connected with the pillars 22, and the bottom of the partition plate 23 is provided with a plurality of water channels 23a for communicating the sedimentation region 1a with the aerobic region 1 b. In this embodiment, the partition assembly 2 further includes an embedded plate 24 fixedly disposed on the buttress 21, the bottom of the upright column 22 and the embedded plate 24 are fixed by welding or by screw connection, the buttress 21 is made of impermeable concrete, the upper surface of the buttress 21 is consistent with the plane of the inner bottom wall of the tank body 1, wherein the upright column 22 is made of profile steel, and the partition plate 23 is made of stainless steel, or made of carbon steel, PE or PP.

In this embodiment, the aeration assembly 3 includes a main aeration pipe 31 disposed at the top of the aerobic region 1b and a plurality of catenary aeration pipes 32 fixedly disposed on the main aeration pipe 31 at intervals, the bottoms of the catenary aeration pipes 32 all extend into the aerobic region 1b, specifically, the main aeration pipe 31 is connected to an external aeration device, gas is introduced into the aerobic region 1b through the catenary aeration pipes 32, the bottom of the catenary aeration pipe 32 has a height difference with the inner bottom wall of the tank body 1, so as to prevent the catenary aeration pipe 32 from contacting the anti-seepage membrane 13 on the inner bottom wall of the tank body 1, and the anti-seepage membrane 13 is damaged.

On the basis of the scheme, E-shaped locks 25 for fixing the impermeable membrane 13 are arranged on the periphery of the outer side of the embedded plate 24, the partition plate 23 is fixedly connected with one sides of the plurality of upright posts 22 close to the sedimentation area 1a, the bottom of the partition plate 23 is provided with a bending part, and a sludge backflow channel 23b is formed between the partition plate 23 and the side slope 11.

In the using process, external sewage is introduced into an aerobic area 1b in the tank body 1, the sewage enters the sedimentation areas 1a at two sides from the waterway channel 23a after being purified in the aerobic area 1b, clarified water is upwards discharged through the water outlet tank 12, and the settled sludge sinks into the bottom of the aerobic area 1b from the sludge backflow channel 23 b; sludge backflow circulation is formed in the tank body 1 under the action of the catenary aeration pipeline 32.

The above description is only a 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 included in the scope of the present invention.

Claims

1. A sewage sedimentation tank of a Baileke process is characterized by comprising

2. The sewage sedimentation tank of the Baileke process as claimed in claim 1, wherein the partition member comprises a buttress fixed on the bottom wall of the tank body, a plurality of upright posts fixed on the buttress, and a partition plate fixedly connected with the upright posts, and a plurality of waterway channels for communicating the sedimentation region with the aerobic region are arranged at the bottom of the partition plate.

3. The sewage sedimentation tank of the Pleke process as claimed in claim 1, wherein the aeration assembly comprises an aeration main pipe disposed on the top of the aerobic zone and a plurality of catenary aeration pipelines fixed on the aeration main pipe at intervals, the bottoms of the catenary aeration pipelines extend into the aerobic zone, and the bottoms of the catenary aeration pipelines have a height difference with the inner bottom wall of the tank body.

4. The sewage sedimentation tank of the Baileke process as claimed in claim 2, wherein the partition assembly further comprises an embedded plate fixedly arranged on the buttress, and the bottom of the upright post is fixedly connected with the embedded plate through welding or threads.

5. The sewage sedimentation tank of the Baileke process according to claim 4, wherein an E-shaped lock for fixing the impermeable membrane is arranged around the outer side of the pre-buried plate.

6. The sewage sedimentation tank of the Baileke process as claimed in claim 2, wherein the partition plate is fixedly connected with one side of the plurality of the upright posts close to the sedimentation area, and a bending part is arranged at the bottom of the partition plate.

7. The sewage settling pond of the Baileke process according to claim 6, wherein a sludge return channel is formed between the partition plate and the slope.

8. The sewage sedimentation tank of the Baileke process as claimed in claim 2, wherein the partition plate is a stainless steel plate, a carbon steel plate, a PE plate or a PP plate.

9. The sewage sedimentation tank of the halbach process as claimed in claim 1, wherein the impermeable membrane is a HDPE impermeable membrane.

10. The sewage sedimentation tank of the baileke process according to claim 1, wherein the slope ratio of the side slope is 1:1-1: 2.