CN214654281U

CN214654281U - Sewage treatment device and sewage treatment system

Info

Publication number: CN214654281U
Application number: CN202022986668.1U
Authority: CN
Inventors: 章武首; 何海峰; 张晨; 李�瑞; 安卫军
Original assignee: Shaanxi Xinhong Water Art Environmental Technology Co ltd
Current assignee: Shaanxi Xinhong Water Art Environmental Technology Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-11-09
Anticipated expiration: 2030-12-10

Abstract

The disclosure relates to the technical field of sewage treatment, in particular to a sewage treatment device and a sewage treatment system. The sewage treatment plant that this disclosure provided includes: the device comprises a box body, and a pretreatment tank, an anaerobic tank, an anoxic tank, at least one aerobic tank, an inclined tube sedimentation tank and a filter tank which are arranged in the box body, wherein the pretreatment tank, the anaerobic tank, the anoxic tank, the at least one aerobic tank, the inclined tube sedimentation tank and the filter tank are sequentially communicated; the inclined tube sedimentation tank is connected with a sludge reflux pump through a pipeline, the sludge reflux pump is connected with the anaerobic tank through a sludge reflux pipe, and the sludge reflux pump is connected with a sludge discharge pipe; the side wall of the box body is formed with a groove, and the sludge reflux pump is arranged in the groove. The lateral wall shaping of box is fluted, and the mud backwash pump sets up in the recess. A groove is formed in the side face of the box body, and a sludge reflux pump is arranged in the groove to ensure that the sludge reflux pump runs in a dry environment.

Description

Sewage treatment device and sewage treatment system

Technical Field

The disclosure relates to the technical field of sewage treatment, in particular to a sewage treatment device and a sewage treatment system.

Background

With the further development of the urbanization process in China, the economy of vast rural areas in China is greatly improved. But the economic development is followed by a serious environmental pollution problem. Aiming at the sewage distribution characteristics of multiple points and wide areas in rural areas, the integrated sewage treatment equipment rapidly occupies the market leading position by virtue of the advantages of small occupied area, high integration level, flexible construction, high sewage treatment efficiency and the like.

Although the existing integrated sewage treatment equipment has high application rate for treating domestic sewage in rural areas, certain problems exist in engineering practice. The conventional domestic sewage treatment method is an activated sludge method, and during the operation process of the method, sludge and mixed liquor are refluxed, namely a pump set (power equipment) is used for realizing reflux so as to achieve the expected sewage treatment effect. The existing integrated sewage treatment equipment integrates a pump set (power equipment) and is in the equipment, namely, the power equipment runs underwater, the facility mode often has the problems that the power equipment is easy to break down, the maintenance is inconvenient after the break down and the like in the running process, and the running efficiency of the equipment is greatly reduced.

Disclosure of Invention

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a sewage treatment apparatus and a sewage treatment system.

The present disclosure provides in a first aspect a sewage treatment plant comprising: the device comprises a box body, and a pretreatment tank, an anaerobic tank, an anoxic tank, at least one aerobic tank, an inclined tube sedimentation tank and a filter tank which are arranged in the box body, wherein the pretreatment tank, the anaerobic tank, the anoxic tank, the at least one aerobic tank, the inclined tube sedimentation tank and the filter tank are sequentially communicated;

the inclined tube sedimentation tank is connected with a sludge reflux pump through a pipeline, the sludge reflux pump is connected with the anaerobic tank through a sludge reflux pipe, and the sludge reflux pump is connected with a sludge discharge pipe;

the side wall of the box body is formed with a groove, and the sludge reflux pump is arranged in the groove.

Furthermore, a lifting basket is arranged inside the pretreatment tank, and a filter screen is arranged in the lifting basket.

Furthermore, a partition board is arranged in the aerobic tank, a gap is formed between the partition board and the bottom of the aerobic tank, the aerobic tank is divided into an aerobic zone and a settling zone by the partition board, the aerobic zone is provided with a plurality of aeration mechanisms for providing oxygen for the aerobic zone, and the settling zone is used for settling sludge in water in the aerobic zone.

Further, the aeration mechanism comprises an aeration pipe, the aeration pipe is communicated with the air blower through a pipeline, a valve is arranged on the pipeline, and the valve is used for adjusting aeration quantity or closing aeration;

the aeration pipe is provided with a plurality of aeration holes, and the aeration holes are communicated with the inside of the aeration pipe and the outside of the aeration pipe.

Furthermore, the sedimentation area is provided with a partition plate, and the partition plate inclines from the bottom wall of the sedimentation tank to the side wall of the sedimentation tank.

Further, the aerobic zone is provided with a first filler.

Furthermore, the inclined tube sedimentation tank is provided with a plurality of inclined tubes which are closely arranged.

Further, the anaerobic tank is provided with a second filler.

Further, the anoxic tank is provided with a third filler.

The second aspect of the present disclosure provides a sewage treatment system comprising the sewage treatment device.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the sewage treatment plant that this disclosed embodiment provided includes: the device comprises a box body, and a pretreatment tank, an anaerobic tank, an anoxic tank, at least one aerobic tank, an inclined tube sedimentation tank and a filter tank which are arranged in the box body, wherein the pretreatment tank, the anaerobic tank, the anoxic tank, the at least one aerobic tank, the inclined tube sedimentation tank and the filter tank are sequentially communicated; the inclined tube sedimentation tank is connected with a sludge reflux pump through a pipeline, the sludge reflux pump is connected with the anaerobic tank through a sludge reflux pipe, and the sludge reflux pump is connected with a sludge discharge pipe. When the anaerobic treatment device works, sewage firstly enters the pretreatment tank for treatment, dirt such as sand grains, large particles, long fibers and the like is removed, and then the sewage enters the anaerobic tank and the anoxic tank for anaerobic and anoxic reactions and then enters the aerobic tank for aerobic treatment. Then the sewage enters an inclined tube sedimentation tank and a filtering tank in sequence for advanced treatment such as sedimentation and filtering, and the filtered sewage is disinfected and then discharged after reaching the standard. Sludge in the sedimentation tank flows back to the anaerobic tank through a sludge return pipe under the action of an external sludge return pump, and residual sludge is discharged through a sludge discharge pipe.

The lateral wall shaping of box is fluted, and the mud backwash pump sets up in the recess. A groove is formed in the side face of the box body, and a sludge reflux pump is arranged in the groove to ensure that the sludge reflux pump runs in a dry environment. The sludge reflux pump is connected with the two-way pipe, the sludge reflux pipeline enables sludge in the sedimentation tank to reflux to the anaerobic tank under the action of the reflux pump, and the sludge discharge pipe discharges residual sludge in the sediment through a sludge discharge port.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic top view of a sewage treatment apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic side view of a sewage treatment apparatus according to an embodiment of the present disclosure;

fig. 3 is an enlarged view of the center recess of fig. 2.

Reference numerals: 1. a box body; 2. a pretreatment tank; 3. an anaerobic tank; 4. an anoxic tank; 5. a filler; 6. a primary aerobic tank; 7. an aeration mechanism; 8. a secondary aerobic tank; 9. an inclined tube sedimentation tank; 10. a filtration tank; 11. a clean water tank; 12. a device room; 13. a sludge discharge port; 14. emptying the air; 15. a sludge reflux pump; 16. a device room door; 17. a sludge return pipe; 18. a sludge discharge pipe; 19. A sludge pump bracket; 20. a pipeline; 21. a tee joint; 22. bending the pipe; 23. a manual ball valve; 24. Internal thread; 25. and (4) external threads.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

As shown in fig. 1, 2 and 3, the sewage treatment apparatus provided by the embodiment of the present disclosure includes: the device comprises a box body 1, and a pretreatment tank 2, an anaerobic tank 3, an anoxic tank 4, at least one aerobic tank, an inclined tube sedimentation tank 9 and a filter tank 10 which are arranged in the box body 1, wherein the pretreatment tank 2, the anaerobic tank 3, the anoxic tank 4, the at least one aerobic tank, the inclined tube sedimentation tank 9 and the filter tank 10 are sequentially communicated; the inclined tube sedimentation tank 9 is connected with a sludge return pump 15 through a pipeline 20, the sludge return pump 15 is connected with the anaerobic tank 3 through a sludge return pipe 17, and the sludge return pump 15 is connected with a sludge discharge pipe 18. When the anaerobic treatment device works, sewage firstly enters the pretreatment tank 2 for treatment, dirt such as sand grains, large particles, long fibers and the like is removed, and then enters the anaerobic tank 3 and the anoxic tank 4 for anaerobic and anoxic reactions and then enters the aerobic tank for aerobic treatment. Then the sewage enters an inclined tube sedimentation tank 9 and a filtering tank 10 in sequence for advanced treatment such as sedimentation and filtration, and the filtered sewage is disinfected and then discharged after reaching the standard. The sludge in the sedimentation tank flows back to the anaerobic tank 3 through a sludge return pipe 17 under the action of an external sludge return pump 15, and the residual sludge is discharged through a sludge discharge pipe 18.

The lateral wall shaping of box 1 is fluted, and the recess extends to box 1 from the outer wall of box, and mud backwash pump 15 sets up in the recess. Do a recess through the side at box 1, set up mud backwash pump 15 in the recess, in order to ensure that mud backwash pump 15 moves under dry environment, on the one hand can make things convenient for personnel to carry out equipment maintenance and maintenance, on the other hand can prolong power equipment life, ensure that sewage treatment device can the long-term stable efficient operation, it is high to have solved because of the pump package fault rate that power equipment brought under water, overhaul inconvenient scheduling problem, so as to reach equipment operation more stable, maintain and overhaul more convenient purpose, improve equipment operating efficiency greatly.

The sludge reflux pump 15 is connected with two pipelines, and the sludge reflux pipe 17 is used for refluxing the sludge in the sedimentation tank to the anaerobic tank 3 under the action of the reflux pump; the sludge discharge pipe 18 discharges the residual sludge in the sediment through the sludge discharge port 13, and the residual sludge is controlled through the manual ball valve 23 and discharged from the emptying port 14 when being discharged.

The sewage treatment device is also provided with a device room 12, the device room 12 is used for installing a control device and controlling the start and stop of the sewage treatment device, and the device room 12 is provided with a device room door.

As shown in FIG. 3, the sludge return pump 15 is arranged on the sludge pump bracket 19, the sludge return pump 15 is connected with the sludge return pipe 17 through an elbow 22, and the sludge return pipe is provided with a manual ball valve 23 and is connected through an internal thread 24 or an external thread 25. The sludge reflux pump 15 is connected with the sludge discharge pipe 18 through a tee joint 21, and the sludge discharge pipe 18 is provided with a manual ball valve 23 and is connected through an inner wire 24 or an outer wire 25. The pipe 20 is provided with a manual ball valve 23 and is connected by an inner wire 24 or an outer wire 25.

The aerobic tank can be provided with one, two or three … …, when the aerobic tank is provided with a plurality of aerobic tanks, two adjacent aerobic tanks are communicated, and sewage can sequentially pass through each aerobic tank.

Optionally, two aerobic tanks can be arranged. Optionally, the aerobic tank may include a primary aerobic tank 6 and a secondary aerobic tank 8, the sewage in the primary aerobic tank 6 is firstly subjected to aerobic aeration treatment in an aeration zone to remove a part of organic pollutants, and subjected to nitrification and phosphorus accumulation bacteria phosphorus absorption reaction, and then enters the secondary aerobic tank 8 to undergo aerobic reaction, and at this time, the biological reaction section is finished.

In some specific implementation modes, the inside hand-basket that is equipped with of preliminary treatment pond 2 is equipped with the filter screen in the hand-basket, gets rid of filth such as sand grain, big particulate matter, long fiber, and the hand-basket can be dismantled with preliminary treatment pond 2 and be connected the filter screen of being convenient for wash in hand-basket and the hand-basket.

In some specific embodiments, a partition is disposed inside the aerobic tank, the partition has a gap with the bottom of the aerobic tank, and the partition divides the aerobic tank into an aerobic zone and a settling zone, the aerobic zone is provided with a plurality of aeration mechanisms 7 for providing oxygen to the aerobic zone, and the settling zone is used for settling sludge in water in the aerobic zone. The aeration mechanism 7 can promote the aeration mode of water body flow, can increase the speed of contact mass transfer and phase interface replacement of the material, provide good power conditions for the subsequent entering of a settling zone and the next reaction tank, accelerate the reaction rate and improve the treatment efficiency of sewage.

In some embodiments, the aeration mechanism 7 includes an aeration pipe, the aeration pipe is communicated with the blower through a pipeline, and a valve is arranged on the pipeline and used for adjusting aeration amount or closing aeration; the aeration pipe is provided with a plurality of aeration holes which are communicated with the inside of the aeration pipe and the outside of the aeration pipe.

In some specific embodiments, the sedimentation zone is provided with a partition plate which is inclined from the bottom wall of the sedimentation tank to the side wall of the sedimentation tank, so that the buffer effect on the sewage can be increased, and the sewage sedimentation can be facilitated.

In some embodiments, the aerobic zone is provided with a first packing. Be provided with first filler frame in the aerobic zone, evenly be provided with first filler on the first filler frame, first filler can provide bigger biological area of contact for sewage treatment effect is better.

In some embodiments, the tube settler 9 is provided with a plurality of closely spaced tubes. The water is overflowed through the inclined pipe, so that the precipitation effect is better.

In some specific embodiments, the anaerobic tank 3 is provided with a second filler, the second filler is uniformly arranged on the second filler frame, and the second filler can provide a larger biological contact area for sewage, so that the sewage treatment effect is better.

In some embodiments, the anoxic tank 4 is provided with a third packing 5. Be provided with the third filler frame in the oxygen deficiency pond 4, evenly be provided with the third on the third filler frame and pack 5, the third packs 5 and can provide bigger biological area of contact for sewage treatment effect is better.

Optionally, the first filler, the second filler and the third filler 5 are all biological fillers 5, optionally, the biological fillers 5 are three-dimensional spiral rope-shaped biological fillers 5, and have the advantages of large specific surface area, high microorganism attachment amount, strong impact resistance and the like,

the filtering tank 10 can be a cellulose filtering tank 10, and the cellulose filtering tank 10 has the advantages of high filtering speed, good filtering effect and the like.

The embodiment of the disclosure also provides a sewage treatment system which comprises a sewage treatment device. The sewage treatment system has the same advantages as the sewage treatment apparatus, and will not be described in detail herein.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sewage treatment apparatus, comprising: the device comprises a box body (1), and a pretreatment tank (2), an anaerobic tank (3), an anoxic tank (4), at least one aerobic tank, an inclined tube sedimentation tank (9) and a filter tank (10) which are arranged in the box body (1), wherein the pretreatment tank (2), the anaerobic tank (3), the anoxic tank (4), the at least one aerobic tank, the inclined tube sedimentation tank (9) and the filter tank (10) are sequentially communicated;

the inclined tube sedimentation tank (9) is connected with a sludge return pump (15) through a pipeline (20), the sludge return pump (15) is connected with the anaerobic tank (3) through a sludge return pipe (17), and the sludge return pump (15) is also connected with a sludge discharge pipe (18);

the side wall of the box body (1) is formed with a groove, and the sludge reflux pump (15) is arranged in the groove.

2. The sewage treatment device according to claim 1, wherein a basket is arranged inside the pretreatment tank (2), and a filter screen is arranged inside the basket.

3. The sewage treatment apparatus according to claim 1, wherein a partition is provided inside said aerobic tank, said partition having a gap with the bottom of said aerobic tank, and said partition dividing said aerobic tank into an aerobic zone and a settling zone, said aerobic zone being provided with a plurality of aeration means (7) for supplying oxygen to said aerobic zone, and said settling zone being for settling sludge in water in said aerobic zone.

4. The sewage treatment apparatus according to claim 3, wherein the aeration means (7) comprises an aeration pipe, the aeration pipe is communicated with the blower through a pipeline, and a valve is arranged on the pipeline and used for adjusting aeration amount or closing aeration;

5. The wastewater treatment plant according to claim 3, wherein the settling zone is provided with a partition plate which slopes from the bottom wall of the settling tank to the side wall of the settling tank.

6. The wastewater treatment plant according to claim 3, wherein the aerobic zone is provided with a first packing.

7. The wastewater treatment plant according to claim 1, characterized in that the tube settler (9) is provided with a plurality of closely arranged tubes.

8. Sewage treatment plant according to claim 1, characterised in that said anaerobic tank (3) is provided with a second filler.

9. Sewage treatment plant according to claim 1, characterised in that the anoxic tank (4) is provided with a third filling (5).

10. A sewage treatment system comprising the sewage treatment apparatus according to any one of claims 1 to 9.