CN212669489U - Small town sewage centralized treatment device - Google Patents
Small town sewage centralized treatment device Download PDFInfo
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- CN212669489U CN212669489U CN202021223939.1U CN202021223939U CN212669489U CN 212669489 U CN212669489 U CN 212669489U CN 202021223939 U CN202021223939 U CN 202021223939U CN 212669489 U CN212669489 U CN 212669489U
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Abstract
The utility model provides a sewage centralized treatment device for small towns, which comprises a hydrolysis acidification tank, an anaerobic tank and an aerobic tank which are connected in sequence, wherein the aerobic tank is communicated with a pipe chute sedimentation tank, one side of the hydrolysis acidification tank is provided with a water inlet pipe for introducing sewage to be treated into the hydrolysis acidification tank, the top of the hydrolysis acidification tank is provided with an overflow groove, and the sewage in the hydrolysis acidification tank can enter the anaerobic tank through the overflow groove; the anaerobic tank is communicated with one side of the aerobic tank, and at least one underwater propeller is arranged in the anaerobic tank; an aeration main pipe and a plurality of aeration branch pipes which are respectively communicated with the aeration main pipe are arranged in the aerobic tank. The utility model discloses sewage centralized treatment device can effectually get rid of organic matter, total nitrogen and phosphorus in the sewage, avoids secondary pollution, can adopt many sets of sewage centralized treatment device parallel processing according to the actual processing water yield, and simple structure adapts to the characteristics that little city ballast volume changes greatly.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment technique and specifically relates to a sewage centralized treatment device for small towns.
Background
The daily change amount of sewage in small towns is large due to the fact that the small towns are small in area, small in population and similar in resident life law. Meanwhile, a considerable part of the population composition of the small town is rural population, and the population is likely to change greatly along with the seasonal change of agricultural production due to the strong instability and mobility of the population. Therefore, the water quantity of the sewage in the small towns has the characteristic of large variation range. Meanwhile, at present, the general current situation in China is that due to limited economic capacity, rural enterprises mostly select industries with simple production process, low technological content and serious pollution in the industrial production and development process, and on the other hand, the original industrial enterprises in large and medium-sized cities have a backward production process and greater pollution and have a tendency of being transferred to small towns. Most of small towns basically have no sewage treatment plants, the sewage treatment capacity is seriously insufficient, and due to the high sewage treatment cost, domestic sewage of a plurality of small towns or industrial sewage of enterprises are discharged into an environmental water body without being treated, so that the serious pollution of the water environment in small-town areas is caused.
Therefore, a sewage centralized treatment device which is low in investment cost, simple to operate and suitable for being installed and used in small towns is needed to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sewage centralized treatment device in small town, the device simple structure, and the capital construction is with little investment, and the working costs is low, has energy saving and consumption reduction's advantage, can satisfy the treatment demand of life and industrial sewage in small town.
The utility model provides a sewage centralized treatment device for small towns, which comprises a hydrolysis acidification tank, an anaerobic tank and an aerobic tank which are connected in sequence, wherein the aerobic tank is communicated with an inclined tube sedimentation tank, one side of the hydrolysis acidification tank is provided with a water inlet pipe for introducing sewage to be treated into the hydrolysis acidification tank, the top of the hydrolysis acidification tank is provided with an overflow groove, and the sewage in the hydrolysis acidification tank can enter the anaerobic tank through the overflow groove; the anaerobic tank is communicated with one side of the aerobic tank, and at least one underwater propeller is arranged in the anaerobic tank; an aeration main pipe and a plurality of aeration branch pipes which are respectively communicated with the aeration main pipe are arranged in the aerobic tank; the other side of the aerobic tank is communicated with the inclined tube sedimentation tank through a first water outlet pipe, and a second water outlet pipe is arranged on one side of the inclined tube sedimentation tank.
Preferably, one side of the aerobic tank, which is close to the inclined tube sedimentation tank, is communicated with the anaerobic tank through a mixed liquid return pipe.
Preferably, the mixed liquid return pipe is located one end is equipped with an at least dive backwash pump in the aerobic tank, the delivery port of dive backwash pump with mixed liquid return pipe is linked together, mixed liquid accessible in the aerobic tank dive backwash pump effect warp mixed liquid return pipe flows back in the anaerobism pond.
Preferably, each of the aeration branch pipes is vertically communicated with the aeration main pipe.
Preferably, each aeration branch pipe is connected with a plurality of micro-porous aeration pipes arranged along the vertical direction.
Preferably, the hydrolysis acidification tank, the anaerobic tank and the aerobic tank are internally provided with a first support which is integrally connected, and the first support is used for placing elastic filler.
Preferably, a second support is arranged in the inclined tube sedimentation tank, and a plurality of rows of inclined tubes which are parallel to each other are mounted on the second support.
Preferably, the inclined tube forms an angle of 60 degrees with the horizontal plane.
Preferably, the bottom of the inclined tube sedimentation tank is communicated with the anaerobic tank through a sludge return pipe, and sludge deposited by the inclined tube sedimentation tank flows back into the anaerobic tank through the sludge return pipe.
The utility model discloses beneficial effect who has: the utility model discloses a set up hydrolysis-acidification pool, anaerobism pond, good oxygen pond and pipe chute sedimentation tank, and set up aeration main pipe and aeration branch pipe in good oxygen pond, on the one hand, can effectively get rid of organic matter, total nitrogen and phosphorus in the sewage, grid sediment, mud and grease that produce in the sewage treatment process are properly handled, avoid biological mud that produces in the sewage biochemical treatment engineering to cause secondary pollution, reduce the organic matter simultaneously, make mud stabilization, reduce poisonous harmful substance in the mud, many times the cyclic treatment, improve the treatment effect of sewage; on the other hand, can adopt many sets of devices concurrent processing according to the actual volume of handling water, simple structure can carry out nimble combination as required, has reduced capital expenditure to a great extent, can adapt to the characteristics that the small town ballast volume change is big, is fit for using widely in small town area.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 top view of the sewage centralized treatment apparatus of the present invention;
FIG. 2 is a left side view of the sewage centralized treatment device of the present invention.
Description of reference numerals:
1: a hydrolysis acidification pool; 2: an anaerobic tank; 3: an aerobic tank; 4: an inclined tube sedimentation tank; 5: a water inlet pipe; 6: an overflow trough; 7: an underwater propeller; 8: an aeration main pipe; 9: an aeration branch pipe; 10: a microporous aeration pipe; 11: a mixed liquid return pipe; 12: a sludge return pipe; 13: a submersible reflux pump; 14: a water outlet groove; 15: a first water outlet pipe; 16: a second water outlet pipe; 17: an elastic filler; 18: a first bracket; 19: a second bracket; 20: and (4) an inclined tube.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the centralized sewage treatment device for small towns comprises a hydrolysis acidification tank 1, an anaerobic tank 2 and an aerobic tank 3 which are connected in sequence, wherein the bottom of the aerobic tank 3 is communicated with the bottom of an inclined tube sedimentation tank 4, one side of the hydrolysis acidification tank 1 is provided with a water inlet pipe 5 for introducing sewage to be treated into the hydrolysis acidification tank, the top of the hydrolysis acidification tank 1, which is close to one side of the anaerobic tank 2, is provided with an overflow groove 6, and sewage which is hydrolyzed and acidified in the hydrolysis acidification tank 1 overflows from the overflow groove 6 and enters the anaerobic tank 2.
The anaerobic tank 2 is provided with a left tank body and a right tank body, the bottoms of the two tank bodies are communicated, the bottoms of the two tank bodies are respectively provided with an underwater propeller 7, and the underwater propeller 7 is used for stirring and mixing semi-liquid sludge in the tank to avoid sludge sedimentation and accumulation. The right end of the anaerobic tank 2 is connected with the aerobic tank 3, the bottom in the aerobic tank 3 is provided with an aeration main pipe 8 which is transversely arranged along the left-right direction, the right end of the aeration main pipe 8 is communicated with the outside of the aerobic tank 3, the aeration main pipe 8 is evenly connected with a plurality of aeration branch pipes 9 which are communicated with the aeration main pipe and are longitudinally arranged along the front-back direction, and the aeration branch pipes 9 are provided with a plurality of micropore aeration pipes 10 which are communicated with the aeration branch pipes and are positioned in the vertical direction.
Through the arrangement of the aeration main pipe 8, the aeration branch pipe 9 and the microporous aeration pipe 10, oxygen required by the growth of bacteria is introduced into the aerobic tank 3. The micro-porous aeration pipe 10 has the advantages of small buoyancy, small vibration, no need of special fixation and convenient installation in the use process, and simultaneously, the number of micro-pores in unit area of the micro-porous aeration pipe 10 is 1-2 times higher than that of the common aeration pipe, and the micro-porous aeration pipe has the advantages of small bubbles, high ventilation capacity, small pressure loss, high oxygen transfer efficiency and the like.
The right side of the aerobic tank 3 is communicated with the anaerobic tank 2 through a mixed liquid return pipe 11, and the sewage in the aerobic tank 3 can flow back to the anaerobic tank 2 through the mixed liquid return pipe 11. The bottom of the inclined tube sedimentation tank 4 is communicated with the anaerobic tank 2 through a sludge return pipe 12, and the sludge settled in the inclined tube sedimentation tank 4 can flow back to the anaerobic tank 2 through the sludge return pipe 12. Two submersible reflux pumps 13 are arranged at the bottom of the right side of the aerobic pool 3, the water outlets of the two submersible reflux pumps 13 are converged and communicated with the mixed liquid reflux pipe 11, and the submersible reflux pumps 13 are used for providing power for the mixed liquid at the bottom of the aerobic pool 3 to reflux into the anaerobic pool 2.
Specifically, the right side of the aerobic tank 3 is further provided with a water outlet tank 14, the water outlet tank 14 is communicated with the bottom of the inclined tube sedimentation tank 4 through a first water outlet pipe 15 and is used for introducing sewage to be subjected to sedimentation treatment into the inclined tube sedimentation tank 4, and one side of the inclined tube sedimentation tank 4 is provided with a second water outlet pipe 16 for discharging water.
Specifically, be equipped with first support 17 in hydrolysis-acidification tank 1, anaerobism pond 2 and the good oxygen pond 3, first support 17 inboard is arranged elastic filler 18, and elastic filler 18 can regard as the attached carrier of bacterium, can improve and adhere to the microorganism volume to improve sewage treatment's effect, elastic filler 18 has corrosion-resistant, unblock, easily biofilm formation simultaneously, easily biofilm growth and advantage such as effectual that drops.
The middle part of the inclined tube sedimentation tank 4 is provided with a second support 19, a plurality of rows of inclined tubes 20 are arranged on the second support 19, the included angle between each inclined tube 20 and the horizontal plane is 60 degrees, the diameter of each inclined tube 20 is 50mm, and the sedimentation effect of the inclined tube sedimentation tank 4 is optimal at the moment. The inclined tube 20 can effectively precipitate the fallen biological membranes and suspended matters in the sewage, and can remove part of BOD5 (an important index for indirectly indicating the pollution degree of water bodies by organic matters by using the dissolved oxygen consumed by the metabolism of microorganisms), in particular suspended BOD 5.
The working flow of the sewage centralized treatment device for small towns is as follows:
1. the sewage to be treated is introduced into the hydrolysis acidification tank 1 for hydrolysis and acidification, the hydrolysis process is to utilize elastic filler to attach bacteria, so that solid organic substances or substances which are difficult to degrade in the sewage are degraded into soluble micromolecular organic substances under the action of hydrolase generated by the bacteria, then the micromolecular organic substances are degraded into organic acid in the acidification process, the biodegradability of the sewage can be improved after the sewage passes through the hydrolysis acidification tank 1, the pH value of the sewage is reduced, the sludge yield is reduced, and favorable conditions are created for subsequent aerobic biological treatment;
2. the sewage after hydrolysis and acidification overflows into the anaerobic tank 2, the anaerobic tank 2 is closed, and the organic matters are further hydrolyzed, acidified and methanated under the action of anaerobic bacteria, so that the organic matters in the sewage are removed, the biodegradability of the sewage is improved, and the subsequent aerobic treatment is facilitated;
3. sewage is introduced into the aerobic tank 3 from the anaerobic tank 2, the growth of microorganisms on the elastic filler 18 is promoted under the action of oxygen introduced from the microporous aeration pipe 10, and organic matters, grease, total nitrogen, phosphorus and the like in the sewage are further digested and degraded through the treatment;
4. the method comprises the following steps of treating sediments such as grid slag and sludge and suspended matters such as fallen biological membranes generated in the sewage treatment process through an inclined tube sedimentation tank;
5. the mixed liquid in the aerobic tank 3 and the sludge in the inclined tube sedimentation tank 4 flow back into the anaerobic tank 2, and the process is repeated to carry out multiple times of circulating treatment on the sewage, so that the treatment effect is improved.
In practical application, can adopt many sets of sewage centralized treatment device concurrent processing according to the actual volume of handling water, simple structure can carry out nimble combination as required, can reduce capital construction expense to a great extent, adapts to the characteristics that little city ballast volume changes greatly.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A sewage centralized treatment device for small towns is characterized by comprising a hydrolysis acidification tank, an anaerobic tank and an aerobic tank which are sequentially connected, wherein the aerobic tank is communicated with an inclined tube sedimentation tank, one side of the hydrolysis acidification tank is provided with a water inlet pipe for introducing sewage to be treated into the hydrolysis acidification tank, the top of the hydrolysis acidification tank is provided with an overflow groove, and the sewage in the hydrolysis acidification tank can overflow into the anaerobic tank through the overflow groove; the anaerobic tank is communicated with one side of the aerobic tank, and at least one underwater propeller is arranged in the anaerobic tank; an aeration main pipe and a plurality of aeration branch pipes which are respectively communicated with the aeration main pipe are arranged in the aerobic tank; the other side of the aerobic tank is communicated with the inclined tube sedimentation tank through a first water outlet pipe, and a second water outlet pipe is arranged on one side of the inclined tube sedimentation tank.
2. The centralized sewage treatment plant for small towns according to claim 1, wherein a side of said aerobic tank adjacent to said inclined tube sedimentation tank is connected to said anaerobic tank through a mixed liquid return pipe.
3. The centralized sewage treatment device for small towns as claimed in claim 2, wherein the mixed liquid return pipe is provided with at least one submersible return pump at one end thereof located in the aerobic tank, a water outlet of the submersible return pump is communicated with the mixed liquid return pipe, and the mixed liquid in the aerobic tank can flow back into the anaerobic tank through the mixed liquid return pipe by the action of the submersible return pump.
4. The centralized sewage treatment plant for small towns according to claim 1, wherein each of said aeration branch pipes is vertically communicated with said aeration main pipe.
5. The centralized treatment device for sewage in small towns according to claim 1, wherein a plurality of vertical microporous aeration pipes are connected to each aeration branch pipe.
6. The centralized sewage treatment device for small towns according to claim 1, wherein the hydrolysis acidification tank, the anaerobic tank and the aerobic tank are provided with a first bracket which is integrally connected, and the first bracket is used for placing elastic filler.
7. The centralized sewage treatment device for small towns according to claim 1, wherein a second bracket is arranged in the inclined tube sedimentation tank, and a plurality of rows of inclined tubes which are parallel to each other are arranged on the second bracket.
8. The centralized sewage treatment plant for small towns according to claim 7, wherein the angle between the inclined tube and the horizontal plane is 60 °.
9. The centralized sewage treatment device for small towns according to claim 1, wherein the bottom of the inclined tube sedimentation tank is communicated with the anaerobic tank through a sludge return pipe, and sludge settled in the inclined tube sedimentation tank can be returned to the anaerobic tank through the sludge return pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223939.1U CN212669489U (en) | 2020-06-29 | 2020-06-29 | Small town sewage centralized treatment device |
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| CN202021223939.1U CN212669489U (en) | 2020-06-29 | 2020-06-29 | Small town sewage centralized treatment device |
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| CN212669489U true CN212669489U (en) | 2021-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149142A (en) * | 2021-12-03 | 2022-03-08 | 德蓝(海南)未来之水有限公司 | Urban sewage treatment system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149142A (en) * | 2021-12-03 | 2022-03-08 | 德蓝(海南)未来之水有限公司 | Urban sewage treatment system and method |
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