CN209815786U - Integrated constructed wetland capable of efficiently removing nitrogen, phosphorus and solid particles - Google Patents

Abstract

The utility model provides a high-efficient integrated constructed wetland who removes nitrogen phosphorus and solid particle belongs to sewage treatment technical field. It has solved the unreasonable problem of current constructed wetland design. This high-efficient integrated constructed wetland who removes nitrogen phosphorus and solid particle, be the wetland purification unit that the echelonment connects gradually including at least two, the wetland purification unit of upper end is connected with water installations, wetland purification unit is including the aeration storehouse and the plant storehouse that connect gradually, be equipped with time delay aeration equipment in the aeration storehouse, be equipped with overflow pipe one between aeration storehouse and plant storehouse, the plant storehouse with be located adjacent wetland purification unit and be located and be equipped with overflow pipe two between the aeration storehouse of plant storehouse below, the bottom in aeration storehouse and the bottom in plant storehouse all are equipped with the blow-down pipe with external intercommunication. The utility model discloses a cascaded stacked structure, area is little, and the wetland blocks up easier mediation, sets up the time delay aeration, and it is effectual to remove nitrogen phosphorus.

Description

Integrated constructed wetland capable of efficiently removing nitrogen, phosphorus and solid particles

Technical Field

The utility model belongs to the technical field of sewage treatment, a high-efficient integrated constructed wetland who removes nitrogen phosphorus and solid particle is related to.

Background

The artificial wetland is a technology for treating sewage and sludge by using the physical, chemical and biological triple synergistic action of soil, artificial medium, plants and microorganisms in the process of flowing along a certain direction by using sewage and sludge which are controllably dosed to the artificially constructed wetland from the artificially constructed and controlled-operation ground similar to the marshland. The action mechanism of the plant nutrient solution comprises the actions of adsorption, detention, filtration, oxidation reduction, precipitation, microbial decomposition, transformation, plant shielding, residue accumulation, transpiration moisture and nutrient absorption and various animals.

Most of the existing artificial wetlands are suitable for flat land areas, and when sewage is treated, a wetland system is easy to block, backwashing is not easy, and the sewage treatment effect is poor.

Disclosure of Invention

The utility model aims at providing a high-efficient integrated constructed wetland who removes nitrogen phosphorus and solid particle to the above-mentioned problem that prior art exists.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a high-efficient integrated constructed wetland who removes nitrogen phosphorus and solid particle, is the echelonment wetland purification unit that connects gradually including at least two, the wetland purification unit of upper end is connected with water installations, wetland purification unit is including the aeration storehouse and the plant storehouse that connect gradually, be equipped with time delay aeration equipment in the aeration storehouse, be equipped with overflow pipe one between aeration storehouse and plant storehouse, plant storehouse and be located adjacent wetland purification unit and be located and be equipped with overflow pipe two between the aeration storehouse of plant storehouse below, the bottom in aeration storehouse and the bottom in plant storehouse all are equipped with the blow-down pipe with external intercommunication, be equipped with at least one inlet tube of being connected with the aeration storehouse on the water installations, be equipped with at least one backwash pipe of being connected with the plant storehouse on the water installations.

In the integrated artificial wetland for efficiently removing nitrogen, phosphorus and solid particles, the water inlet device is arranged above the uppermost wetland purification unit.

In the integrated artificial wetland for efficiently removing nitrogen, phosphorus and solid particles, the aeration bin is also internally provided with biological filter materials arranged at the circumferential outer side of the delayed aeration device.

In the integrated artificial wetland for efficiently removing nitrogen, phosphorus and solid particles, the plant bin is filled with wetland filter materials.

In the integrated artificial wetland for efficiently removing nitrogen, phosphorus and solid particles, wetland plants are arranged in the plant bin and above the wetland filter material.

In foretell high-efficient integrated constructed wetland who removes nitrogen phosphorus and solid particle, the violently pipe of intaking of aeration storehouse upper end is worn to locate to overflow pipe one to and set up the standpipe of intaking of bottom in the plant storehouse, the one end of violently managing of intaking is connected with the upper end of standpipe of intaking.

In the above-mentioned integrated constructed wetland for efficiently removing nitrogen, phosphorus and solid particles, the water inlet vertical pipe is far away from the circumferential outer side of one end of the water inlet vertical pipe and is positioned in the aeration bin and provided with the water guide hole.

In the above integrated constructed wetland for efficiently removing nitrogen, phosphorus and solid particles, the upper end of the water inlet vertical pipe is provided with the anti-blocking pipe communicated with the water inlet vertical pipe.

In the above-mentioned integrated constructed wetland of high-efficient nitrogen phosphorus removal and solid particle, horizontal pipe, the standpipe of intaking and anti-blocking pipe formula structure as an organic whole.

In foretell high-efficient integrated constructed wetland who removes nitrogen phosphorus and solid particle, time delay aeration equipment includes an air intake manifold to and two at least parallelly connected air intake branch pipes that set up on the air intake manifold, it is equipped with the aeration head just to be located aeration storehouse on the branch pipe to admit air.

Compared with the prior art, the integrated constructed wetland for efficiently removing nitrogen and phosphorus and solid particles has the following advantages:

1. the integrated constructed wetland for efficiently removing nitrogen, phosphorus and solid particles is provided with the emptying pipe and the backwashing pipe, is not easy to block, can perform time-delay aeration, and has good nitrogen and phosphorus removal effect.

2. The integrated constructed wetland for efficiently removing nitrogen, phosphorus and solid particles adopts a stepped stacking structure, has small floor area and is particularly suitable for places with less flat ground, such as mountain areas and the like.

3. The integrated constructed wetland for efficiently removing nitrogen, phosphorus and solid particles adopts the overflow pipe, the removal rate of the fixed particles is high, the blockage of the wetland is easy to dredge, and the collapse of the whole wetland is not caused.

Drawings

Fig. 1 is a schematic view of the pipeline connection of the present invention.

Fig. 2 is a schematic diagram of the wetland purification unit of the present invention.

Fig. 3 is a schematic view of a first overflow pipe of the present invention.

In the figure, 1, a wetland purification unit; 11. an aeration bin; 111. biological filter materials; 12. a plant bin; 121. a zeolite; 122. wetland plants; 2. a water inlet device; 21. a water inlet pipe; 22. backwashing the tubes; 3. a time-delay aeration device; 31. an intake manifold; 32. air inlet branch pipes; 33. an aeration head; 4. a first overflow pipe; 41. a water inlet horizontal pipe; 411. a water guide hole; 42. a water inlet vertical pipe; 43. preventing the pipe from being blocked; 5. a second overflow pipe; 6. and (5) emptying a pipe.

Detailed Description

As shown in fig. 1-3, the integrated artificial wetland for stepped efficient nitrogen and phosphorus removal and solid particle removal comprises at least two wetland purification units 1 which are sequentially connected in a stepped manner, wherein a support is arranged below the wetland purification units 1 for fixation, the uppermost wetland purification unit 1 is connected with a water inlet device 2, and the water inlet device 2 is arranged above the uppermost wetland purification unit 1.

The water inlet device 2 is arranged above the uppermost wetland purification unit 1, so that the wetland purification unit 1 can conveniently feed water and reversely flush the water in a stepped flow direction, and the water resource can be fully utilized.

The artificial wetland has a ladder type stacking structure, occupies a small area, and is particularly suitable for being used in mountainous areas and other places with less flat ground.

The wetland purification unit 1 comprises an aeration bin 11 and a plant bin 12 which are connected in sequence, wherein a time-delay aeration device 3 is arranged in the aeration bin 11.

The delayed aeration device 3 comprises an air inlet main pipe 31 and at least two air inlet branch pipes 32 which are arranged on the air inlet main pipe 31 in parallel, wherein the air inlet branch pipes 32 are arranged on the aeration bin 11 and are internally provided with aeration heads 33.

The aeration bin 11 is aerated, on one hand, activated sludge is further utilized to purify sewage, on the other hand, dissolved oxygen of the sewage flowing into the plant bin 12 is increased, and the sewage treatment capacity of plants is improved.

The aeration adopts the time delay aeration, thereby saving energy and preventing the dissolved oxygen from being too high.

And a biological filter material 111 arranged on the circumferential outer side of the delayed aeration device 3 is also arranged in the aeration bin 11.

The biological filter material 111 has the function of adsorbing solid particles in the sewage and can have the function of biological filler, and the activated sludge is stored to further treat the sewage, so that the nitrogen and phosphorus removal effects are enhanced.

An overflow pipe I4 is arranged between the aeration bin 11 and the plant bin 12.

The overflow pipe I4 comprises a water inlet horizontal pipe 41 arranged at the upper end of the aeration bin 11 in a penetrating mode and a water inlet vertical pipe 42 arranged at the bottom in the plant bin 12, and one end of the water inlet horizontal pipe 41 is connected with the upper end of the water inlet vertical pipe 42.

The upper layer of the overflow pipe I4 aeration bin 11 is filled with water, so that solid particles can be effectively prevented from flowing out. The water outlet in the plant bin 12 is from bottom to top, which is beneficial to the precipitation of solid particles on one hand and the uniform dispersion of the inlet water on the other hand.

The water inlet vertical pipe 42 is far away from the circumferential outer side of one end of the water inlet vertical pipe 42 and is provided with a water guide hole 411 in the aeration bin 11.

And a water guide hole 411 is arranged to facilitate the water in the aeration bin 11 to overflow into the overflow pipe I4.

The upper end of the water inlet vertical pipe 42 is provided with an anti-blocking pipe 43 communicated with the water inlet vertical pipe 42.

And the anti-blocking pipe 43 is arranged, so that the first overflow pipe 4 can be conveniently dredged.

And a second overflow pipe 5 is arranged between the plant bin 12 and an aeration bin 11 which is positioned in the adjacent wetland purification unit 1 and is positioned below the plant bin 12.

The structure of the second overflow pipe 5 is the same as that of the first overflow pipe 4, the water inlet end of the second overflow pipe 5 is connected with the plant bin 12, and the water outlet end of the second overflow pipe 5 is positioned above the aeration bin 11 in the adjacent wetland purification unit 1.

And the bottom of the aeration bin 11 and the bottom of the plant bin 12 are both provided with an emptying pipe 6 communicated with the outside.

And an emptying pipe 6 is arranged to discharge excessive sludge in the aeration bin 11 and the plant bin 12 respectively.

The water inlet device 2 is provided with at least one water inlet pipe 21 connected with the aeration bin 11, and the water inlet device 2 is provided with at least one backwashing pipe 22 connected with the plant bin 12.

The water inlet pipe 21 and the emptying pipe 6 are opened, so that the backwashing operation in the aeration bin 11 can be carried out.

The backwash operation in the plant silo 12 can be performed by opening the backwash pipe 22 and the vent pipe 6.

The plant bin 12 is filled with zeolite 121.

The wetland filler adopts zeolite 121 filler, and is light and convenient and has good effect.

Wetland plants 122 are arranged in the plant bin 12 and above the zeolite 121.

The wetland plants 122 are arranged, so that the sewage treatment capacity is realized, and the appearance is attractive.

The water inlet horizontal pipe 41, the water inlet vertical pipe 42 and the anti-blocking pipe 43 are of an integrated structure.

The integrated structure is compact, and the connection is reliable and stable.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The integrated artificial wetland is characterized by comprising at least two wetland purification units (1) which are sequentially connected in a step shape, wherein the uppermost end of each wetland purification unit (1) is connected with a water inlet device (2), each wetland purification unit (1) comprises an aeration bin (11) and a plant bin (12) which are sequentially connected, a delay aeration device (3) is arranged in each aeration bin (11), an overflow pipe I (4) is arranged between each aeration bin (11) and each plant bin (12), an overflow pipe II (5) is arranged between each plant bin (12) and each aeration bin (11) which is positioned in the adjacent wetland purification unit (1) and is positioned below the plant bin (12), vent pipes (6) communicated with the outside are arranged at the bottom of each aeration bin (11) and the bottom of each plant bin (12), at least one water inlet pipe (21) connected with each aeration bin (11) is arranged on each water inlet device (2), the water inlet device (2) is provided with at least one backwashing pipe (22) connected with the plant bin (12).

2. The integrated artificial wetland for efficient nitrogen, phosphorus and solid particle removal according to claim 1, wherein the water inlet device (2) is arranged above the uppermost wetland purification unit (1).

3. The integrated artificial wetland for efficiently removing nitrogen, phosphorus and solid particles as claimed in claim 1, wherein a biological filter material (111) arranged at the circumferential outer side of the delayed aeration device (3) is further arranged in the aeration bin (11).

4. The integrated artificial wetland for efficient nitrogen, phosphorus and solid particle removal according to claim 1, wherein the plant bin (12) is filled with zeolite (121).

5. The integrated artificial wetland for efficient nitrogen, phosphorus and solid particle removal according to claim 4, characterized in that wetland plants (122) are arranged in the plant bin (12) and above the zeolite (121).

6. The integrated artificial wetland for removing nitrogen, phosphorus and solid particles with high efficiency according to claim 1, wherein the overflow pipe (4) comprises a horizontal water inlet pipe (41) penetrating the upper end of the aeration bin (11) and a vertical water inlet pipe (42) arranged at the bottom in the plant bin (12), and one end of the horizontal water inlet pipe (41) is connected with the upper end of the vertical water inlet pipe (42).

7. The integrated artificial wetland for efficiently removing nitrogen, phosphorus and solid particles according to claim 6, wherein the water inlet vertical pipe (42) is far away from the circumferential outer side of one end of the water inlet vertical pipe (42) and is provided with a water guide hole (411) in the aeration bin (11).

8. The integrated artificial wetland for efficient nitrogen, phosphorus and solid particle removal according to claim 6, wherein the upper end of the water inlet vertical pipe (42) is provided with an anti-blocking pipe (43) communicated with the water inlet vertical pipe (42).

9. The integrated artificial wetland for efficiently removing nitrogen, phosphorus and solid particles as claimed in claim 8, wherein the horizontal water inlet pipe (41), the vertical water inlet pipe (42) and the anti-blocking pipe (43) are of an integrated structure.

10. The integrated artificial wetland for efficient nitrogen, phosphorus and solid particle removal according to claim 1, wherein the delayed aeration device (3) comprises an air inlet main pipe (31) and at least two air inlet branch pipes (32) which are arranged on the air inlet main pipe (31) in parallel, and aeration heads (33) are arranged on the air inlet branch pipes (32) and in the aeration bin (11).