CN214360508U

CN214360508U - Micro-potential double-flow bed domestic sewage treatment equipment

Info

Publication number: CN214360508U
Application number: CN202022491911.2U
Authority: CN
Inventors: 李木金; 陈海肖; 黄付平; 刘敦强; 兰弋发; 刘波庭
Original assignee: Guangxi Jinmiaosong Environmental Protection Engineering Co ltd
Current assignee: Guangxi Jinmiaosong Environmental Protection Engineering Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-10-08
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses a little potential double flow bed sewage treatment device, which comprises a tank body, fourth fine sand layer top is provided with second iron carbon basic unit, second iron carbon basic unit top is provided with the fine sand layer of third, be provided with the second breather pipe in the middle of the second haydite layer, be provided with first breather pipe in the middle of the first haydite layer, second composite bed top is provided with first iron carbon basic unit, first iron carbon basic unit top is provided with first composite bed. The utility model discloses in, make sewage disperse to each layer through multilayer gradation, the dissolved oxygen content of each layer is different, satisfy the required condition of short distance nitration coupling anammox, thereby realize degree of depth denitrogenation, and the iron carbon group converts ferrous ion under the faintly acid condition, ferrous ion can combine the postprecipitation with the phosphorus in the sewage and solidify to the fluidized bed, exist simultaneously under oxygen, can break the chain with the macromolecule organic matter, become the micromolecule organic matter, increase the biodegradability of sewage, be worth wideling popularize.

Description

Micro-potential double-flow bed domestic sewage treatment equipment

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a little potential double flow bed sewage treatment device.

Background

Sewage treatment refers to a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage, and is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and the sewage treatment also increasingly enters the daily life of common people.

Domestic sewage usually contains a large amount of nitrogen and phosphorus, but the conventional sewage treatment mode is difficult to realize deep denitrification and dephosphorization, so that the sewage is discharged into the environment to cause serious pollution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a micro-potential double-flow bed domestic sewage treatment device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a micro-potential double-flow bed domestic sewage treatment device comprises a tank body, wherein a rubble layer is arranged at the bottom in the tank body, a graded sand layer is arranged above the crushed stone layer, a fourth fine sand layer is arranged above the graded sand layer, a second iron-carbon base layer is arranged above the fourth fine sand layer, a third fine sand layer is arranged above the second iron-carbon base layer, a second ceramsite layer is arranged above the third fine sand layer, a second vent pipe is arranged in the middle of the second ceramsite layer, a second fine sand layer is arranged above the second ceramsite layer, a first ceramsite layer is arranged above the second fine sand layer, a first breather pipe is arranged in the middle of the first ceramsite layer, a second composite layer is arranged above the first ceramsite layer, a first iron-carbon base layer is arranged above the second composite layer, a first composite layer is arranged above the first iron-carbon base layer, and a first fine sand layer is arranged above the first composite layer.

As a further description of the above technical solution:

the output that is provided with drain pipe and drain pipe in the middle of the metalling runs through jar lateral wall and outwards extends.

As a further description of the above technical solution:

and a second geotextile layer is arranged between the graded sand layer and the fourth fine sand layer.

As a further description of the above technical solution:

the graded sand layer is prepared from fine sand and medium sand with gradually increasing grain sizes from top to bottom.

As a further description of the above technical solution:

the first iron-carbon base layer and the second iron-carbon base layer are both made of iron base and carbon base in a mixed mode.

As a further description of the above technical solution:

the utility model discloses a set up the jar body lateral wall outside, all be provided with evenly distributed's venthole and first breather pipe and second breather pipe on first breather pipe and the second breather pipe and all run through jar body lateral wall and outwards extend, the shape size homogeneous phase of first breather pipe, second breather pipe and drain pipe is the same.

As a further description of the above technical solution:

and a first geotextile layer is arranged between the first ceramsite layer and the second composite layer.

The utility model discloses following beneficial effect has:

the utility model discloses in, through the graduation of the internal multilayer filler of jar, can make sewage disperse to each packing layer in, top-down is different at the dissolved oxygen content of each layer in the space, be in the state of facultative and aerobic respectively, consequently can effectively nitrify the denitrification process, in the underfill, satisfy the required condition of short distance nitration coupling anaerobic ammonia oxidation, thereby can realize degree of depth denitrogenation, and the iron carbon base converts ferrous ion into under the faintly acid condition, then ferrous ion can combine to deposit the postcure to the fluidized bed with the phosphorus in the sewage, exist simultaneously at oxygen, can break the chain with the macromolecule organic matter, become the micromolecule organic matter, increase the biodegradability of sewage, be worth wideling popularize.

Drawings

FIG. 1 is a schematic structural view of a micro-potential double-flow bed domestic sewage treatment device provided by the utility model;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

fig. 4 is a sectional view of a depression surface of the micro-potential double-flow bed domestic sewage treatment equipment provided by the utility model.

Illustration of the drawings:

1. a tank body; 2. a first fine sand layer; 3. a first composite layer; 4. a first iron-carbon based layer; 5. a second composite layer; 6. a first layer of ceramic particles; 7. a first vent pipe; 8. a second fine sand layer; 9. a second layer of ceramic particles; 10. A second vent pipe; 11. a third fine sand layer; 12. a second iron-carbon based layer; 13. a fourth fine sand layer; 14. Grading a sand layer; 15. a crushed stone layer; 16. a drain pipe; 17. a first geotextile layer; 18. a second geotextile layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, 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.

Referring to fig. 1-4, the present invention provides an embodiment: a micro-potential double-flow bed domestic sewage treatment device comprises a tank body 1, wherein a gravel layer 15 is arranged at the bottom in the tank body 1, a graded sand layer 14 is arranged above the gravel layer 15, sewage can be discharged through a drain pipe 16 after being filtered by the graded sand layer 14 and the gravel layer 15, a fourth fine sand layer 13 is arranged above the graded sand layer 14, a second iron-carbon base layer 12 is arranged above the fourth fine sand layer 13, a third fine sand layer 11 is arranged above the second iron-carbon base layer 12, a place for denitrification and short-cut nitrification coupling anaerobic ammonia oxidation reaction can be provided for sewage treatment through the third fine sand layer 11, the second iron-carbon base layer 12 and the fourth fine sand layer 13, a second ceramic grain layer 9 is arranged above the third fine sand layer 11, a second vent pipe 10 is arranged in the middle of the second ceramic grain layer 9, a second fine sand layer 8 is arranged above the second ceramic grain layer 9, a first ceramic grain layer 6 is arranged above the second fine sand layer 8, a first vent pipe 7 is arranged in the middle of the first ceramic grain layer 6, air can be introduced into the tank body 1 and dispersed into each packing layer through the first ceramic grain layer 6, the second fine sand layer 8 and the second ceramic grain layer 9, and the first vent pipe 7 and the second vent pipe 10, a second composite layer 5 is arranged above the first ceramic grain layer 6, a first iron-carbon base layer 4 is arranged above the second composite layer 5, a first composite layer 3 is arranged above the first iron-carbon base layer 4, a first fine sand layer 2 is arranged above the first composite layer 3, solid particles in sewage can be filtered and intercepted through the first fine sand layer 2, the first composite layer 3, the first iron-carbon base layer 4 and the second composite layer 5, so that sewage is dispersed into each packing layer through multi-layer grading, the dissolved oxygen content of each layer is different from top to bottom in space, and the sewage is respectively in a state of both oxygen and oxygen, thereby the nitrification and denitrification process can be effectively carried out, in the bottom filler, the conditions required by the coupling of the short-cut nitrification and the anaerobic ammonia oxidation are met, so that the deep denitrification is realized, the ferrocarbide is converted into ferrous ions under the weak acid condition, then the ferrous ions can be combined with phosphorus in the sewage to be precipitated and then solidified into a fluidized bed, and meanwhile, in the presence of oxygen, the macromolecular organic matters can be broken into micromolecular organic matters, so that the biodegradability of the sewage is increased.

A drain pipe 16 is arranged in the middle of the gravel layer 15, the output end of the drain pipe 16 penetrates through the side wall of the tank body 1 and extends outwards, a second geotextile layer 18 is arranged between the graded sand layer 14 and the fourth fine sand layer 13, the graded sand layer 14 is formed by configuring fine sand and medium sand with gradually increasing grain sizes from top to bottom, the graded sand layer 14 is configured by configuring the fine sand and the medium sand with gradually increasing grain sizes, so that sewage can be filtered layer by layer when passing through the graded sand layer 14, the filtering effect is better, the first iron-carbon base layer 4 and the second iron-carbon base layer 12 are both made by mixing iron base and carbon base, the first vent pipe 7 and the second vent pipe 10 are both provided with uniformly distributed air outlets, the input ends of the first vent pipe 7 and the second vent pipe 10 penetrate through the side wall of the tank body 1 and extend outwards, the shapes and the sizes of the first vent pipe 7, the second vent pipe 10 and the drain pipe 16 are the same, first composite bed 3 and second composite bed 5 all are by the fine sand, the saw-dust, the rice bran mixes and makes, saw-dust and rice bran can provide the carbon source for nitrifying denitrification process, be provided with first geotechnological cloth layer 17 between first granule layer 6 and the second composite bed 5, first geotechnological cloth layer 17 and second geotechnological cloth layer 18 can also play certain filtering action when guaranteeing certain water permeability, and first geotechnological cloth layer 17 and second geotechnological cloth layer 18 can also play the isolation, prevent that the filler from mixing each other, influence sewage treatment effect.

The working principle is as follows: when sewage is treated, solid particles in the sewage can be filtered and intercepted through the first fine sand layer 2, the first composite layer 3, the first iron-carbon base layer 4 and the second composite layer 5, then air can be introduced into the tank body 1 and dispersed into each packing layer through the first ceramic particle layer 6, the second fine sand layer 8, the second ceramic particle layer 9, the first vent pipe 7 and the second vent pipe 10, and then the sewage is dispersed into each packing layer through the third fine sand layer 11, the second iron-carbon base layer 12 and the fourth fine sand layer 13, so that the places for denitrification and short-cut nitrification coupling anaerobic ammonia oxidation reaction can be provided for sewage treatment, the sewage is dispersed into each packing layer through multi-layer grading, the dissolved oxygen content of each layer is different from top to bottom in space and is in facultative and aerobic states respectively, so that the nitrification and denitrification process can be effectively carried out, and the conditions required by short-cut nitrification coupling anaerobic ammonia oxidation are met in the bottom packing, thereby realize degree of depth denitrogenation to the ferrocarbide is converted into ferrous ion under the weak acid condition, then the ferrous ion can combine to deposit the postcure to the fluidized bed with the phosphorus in the sewage, simultaneously under oxygen exists, can break the chain with the macromolecule organic matter, becomes the micromolecule organic matter, increases the biodegradability of sewage, and sewage can discharge through drain pipe 16 after passing through the filtration of grading sand layer 14 and rubble layer 15 at last.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a little potential double-flow bed sewage treatment device, includes jar body (1), its characterized in that: a gravel layer (15) is arranged at the bottom in the tank body (1), a graded sand layer (14) is arranged above the gravel layer (15), a fourth fine sand layer (13) is arranged above the graded sand layer (14), a second iron carbon base layer (12) is arranged above the fourth fine sand layer (13), a third fine sand layer (11) is arranged above the second iron carbon base layer (12), a second ceramic grain layer (9) is arranged above the third fine sand layer (11), a second vent pipe (10) is arranged in the middle of the second ceramic grain layer (9), a second fine sand layer (8) is arranged above the second ceramic grain layer (9), a first ceramic grain layer (6) is arranged above the second fine sand layer (8), a first vent pipe (7) is arranged in the middle of the first ceramic grain layer (6), a second composite layer (5) is arranged above the first ceramic grain layer (6), a first iron-carbon base layer (4) is arranged above the second composite layer (5), a first composite layer (3) is arranged above the first iron-carbon base layer (4), and a first fine sand layer (2) is arranged above the first composite layer (3).

2. The micro-potential dual-flow bed domestic sewage treatment equipment according to claim 1, characterized in that: the middle of the gravel layer (15) is provided with a drain pipe (16), and the output end of the drain pipe (16) penetrates through the side wall of the tank body (1) and extends outwards.

3. The micro-potential dual-flow bed domestic sewage treatment equipment according to claim 1, characterized in that: a second geotextile layer (18) is arranged between the graded sand layer (14) and the fourth fine sand layer (13).

4. The micro-potential dual-flow bed domestic sewage treatment equipment according to claim 1, characterized in that: the graded sand layer (14) is formed by fine sand and medium sand with gradually increasing grain sizes from top to bottom.

5. The micro-potential dual-flow bed domestic sewage treatment equipment according to claim 1, characterized in that: the first iron-carbon base layer (4) and the second iron-carbon base layer (12) are both made of iron base and carbon base in a mixed mode.

6. The micro-potential dual-flow bed domestic sewage treatment equipment according to claim 1, characterized in that: the utility model discloses a jar body, including jar body (1), first breather pipe (7) and second breather pipe (10), the input that all is provided with evenly distributed's venthole and first breather pipe (7) and second breather pipe (10) on first breather pipe (7) and second breather pipe (10) all runs through jar body (1) lateral wall and outwards extends, the shape size homogeneous phase of first breather pipe (7), second breather pipe (10) and drain pipe (16) is the same.

7. The micro-potential dual-flow bed domestic sewage treatment equipment according to claim 1, characterized in that: a first geotextile layer (17) is arranged between the first ceramsite layer (6) and the second composite layer (5).