CN215288447U

CN215288447U - Constructed wetland sewage treatment device with denitrification function

Info

Publication number: CN215288447U
Application number: CN202121751750.4U
Authority: CN
Inventors: 王继军
Original assignee: Guangzhou Tian Rui Environmental Protection Technology Co ltd
Current assignee: Guangzhou Tian Rui Environmental Protection Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-12-24
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses an artificial wetland sewage treatment device with denitrogenation function, including preliminary treatment pond, preliminary treatment pond's right side and first filtering ponds are linked together, and the right side of first filtering ponds is linked together with artificial wetland, artificial wetland's right side and second filtering ponds are linked together, and the right side of second filtering ponds is linked together with the biological filter, the inside of biological filter is provided with defeated gas outer pipe, and defeated gas outer pipe runs through the interior bottom of biological filter. This constructed wetland sewage treatment device with denitrogenation function, the water purification plant of planting in the constructed wetland, can absorb elements such as nitrogen phosphorus in the sewage, reduce the content of nitrogen in the sewage, the water after the processing is discharged into in the biofilter after the second filtering ponds process again, nitrogen is progressively degraded by the microorganism, improve the effect to sewage denitrogenation, oxygenate in to the biofilter through the gas transmission external pipe, improve the activity of microorganism, some bold impurity pollutants can filter isolation and deposit in the sewage in the preliminary treatment pond of setting.

Description

Constructed wetland sewage treatment device with denitrification function

Technical Field

The utility model relates to a sewage treatment related technical field specifically is an artificial wetland sewage treatment device with denitrogenation function.

Background

At present, the sewage treatment in cities and towns in China is mainly realized by the treatment processes of an activated sludge method, an oxidation ditch method, an intermittent activated sludge method and the like adopted by sewage treatment plants, the consumption requirement is high, the treatment effect is poor, the ammonia nitrogen treatment capability in some heavily polluted water is reduced, and the artificial wetland is a sewage treatment ground which is constructed artificially and controlled to operate, the sewage is treated mainly by soil, artificial media and plants, the consumption requirement is low, but the conventional artificial wetland treatment equipment is generally simple in structure, lacks of a complete filtration system, cannot effectively filter impurities in the sewage, and the artificial wetland sewage treatment equipment with the denitrification function is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a constructed wetland sewage treatment device with denitrogenation function to the treatment process such as the activated sludge method, oxidation ditch method and the intermittent type activated sludge method of the adoption that provide in solving above-mentioned background art handles sewage, and the treatment effect is poor, and the existence descends some heavy polluted aquatic ammonia nitrogen treatment capacity, and current constructed wetland treatment device is simple structure usually, lacks complete filtration system, can not be to the effective filterable problem of impurity in the sewage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an artificial wetland sewage treatment device with denitrogenation function, includes pretreatment tank, pretreatment tank's right side and first filtering ponds are linked together, and the right side and the artificial wetland of first filtering ponds are linked together, artificial wetland's right side and second filtering ponds are linked together, and the right side and the biological filter of second filtering ponds are linked together, biological filter's inside is provided with defeated gas outer takeover, and defeated gas outer takeover runs through biological filter's interior bottom.

Preferably, the preliminary treatment pond is including the catch basin, the sedimentation tank, the water inlet, the grid plate, the through-hole, water pump and raceway, and be provided with catch basin and sedimentation tank in the preliminary treatment pond, the catch basin sets up the left side at the sedimentation tank simultaneously, the catch basin left side is provided with the water inlet, and the catch basin inside wall is provided with the grid plate, the catch basin is linked together through-hole and sedimentation tank simultaneously, be provided with the water pump in the sedimentation tank, and the water pump is connected with the raceway, the raceway is kept away from water pump one end simultaneously and is run through the sedimentation tank setting in first filtering pond.

Preferably, first filtering ponds are including first metalling, second metalling and perforated plate, and are provided with first metalling in the first filtering ponds, and first metalling below is provided with the second metalling, and second metalling below is provided with the perforated plate.

Preferably, the artificial wetland comprises a soil water layer and a water purification plant layer, wherein the soil water layer is arranged in the artificial wetland, and the water purification plant layer is arranged on the soil water layer.

Preferably, the second filtering tank comprises a third crushed stone layer, and the third crushed stone layer is arranged in the second filtering tank.

Preferably, the biological filter comprises a first separation net, a second separation net, a packing layer and a microorganism layer, the first separation net is arranged in the biological filter, the second separation net is arranged above the first separation net, the packing layer is arranged above the second separation net, and the microorganism layer is arranged on the surface of the packing layer.

Compared with the prior art, the beneficial effects of the utility model are that: the artificial wetland sewage treatment equipment with the denitrification function,

(1) the sewage treatment device is provided with a pretreatment tank and a first filtering tank, wherein the pretreatment tank can be used for filtering, isolating and precipitating massive impurity pollutants in sewage, and pumping supernatant into the first filtering tank, and the first filtering tank is used for filtering solid impurities in the sewage, so that a water body is clearer;

(2) the water purification plants planted in the artificial wetland can absorb elements such as nitrogen and phosphorus in the sewage and reduce the content of nitrogen in the sewage, the treated water is discharged into the biological filter tank after passing through the second filter tank, the nitrogen is gradually degraded by microorganisms, the effect of denitrification of the sewage is improved, and oxygen is filled into the biological filter tank through the gas transmission external pipe, so that the activity of the microorganisms is improved.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic structural view of a first filtering tank of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. the device comprises a pretreatment tank, 101, a water collecting tank, 102, a sedimentation tank, 103, a water inlet, 104, a grid plate, 105, a through hole, 106, a water pump, 107, a water conveying pipe, 2, a first filtering tank, 201, a first gravel layer, 202, a second gravel layer, 203, a porous plate, 3, an artificial wetland, 301, a soil water layer, 302, a water purification plant layer, 4, a second filtering tank, 401, a third gravel layer, 5, a biological filter, 501, a first separation net, 502, a second separation net, 503, a filler layer, 504, a microorganism layer, 6 and an air conveying external connecting pipe.

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.

Referring to fig. 1-3, the present invention provides a technical solution: an artificial wetland sewage treatment device with denitrification function is disclosed, as shown in figure 1, figure 2 and figure 3, the right side of a pretreatment tank 1 is communicated with a first filtering tank 2, and the right side of the first filtering tank 2 is communicated with an artificial wetland 3, the pretreatment tank 1 comprises a water collecting tank 101, a sedimentation tank 102, a water inlet 103, a grid plate 104, a through hole 105, a water pump 106 and a water conveying pipe 107, the water collecting tank 101 and the sedimentation tank 102 are arranged in the pretreatment tank 1, the water collecting tank 101 is arranged at the left side of the sedimentation tank 102, the water inlet 103 is arranged at the left side of the water collecting tank 101, the grid plate 104 is arranged on the inner side wall of the water collecting tank 101, the water collecting tank 101 is communicated with the sedimentation tank 102 through the through hole 105, the water pump 106 is arranged in the sedimentation tank 102, the water pump 106 is connected with the water conveying pipe 107, one end of the water conveying pipe 107 far away from the water pump 106 is arranged in the first filtering tank 2, large pollutants in the sewage are filtered and isolated through the grid plate 104 in the water collecting tank 101, the supernatant is pumped out by a water pump 106 after being precipitated by a sedimentation tank 102, a first filtering tank 2 comprises a first crushed stone layer 201, a second crushed stone layer 202 and a porous plate 203, a first crushed stone layer 201 is arranged in the first filtering tank 2, the second crushed stone layer 202 is arranged below the first crushed stone layer 201, the porous plate 203 is arranged below the second crushed stone layer 202, the first crushed stone layer 201 and the second crushed stone layer 202 filter solid impurities in the sewage, an artificial wetland 3 comprises a soil water layer 301 and a water purification plant layer 302, the soil water layer 301 is arranged in the artificial wetland 3, a water purification plant layer 302 is arranged on the soil water layer 301, the water purification plant layer 302 can absorb nitrogen and phosphorus and other elements in the sewage and reduce the nitrogen content, the right side of the artificial wetland 3 is communicated with a second filtering tank 4, the right side of the second filtering tank 4 is communicated with a biological filtering tank 5, the second filtering tank 4 comprises a third crushed stone layer 401, and a third gravel layer 401 is arranged in the second filtering tank 4, the third gravel layer 401 filters the sewage again, so that the water body is clearer, an air transmission external pipe 6 is arranged in the biological filtering tank 5, the air transmission external pipe 6 penetrates through the inner bottom of the biological filtering tank 5, the biological filtering tank 5 comprises a first separation net 501, a second separation net 502, a packing layer 503 and a microorganism layer 504, the first separation net 501 is arranged in the biological filtering tank 5, the second separation net 502 is arranged above the first separation net 501, the packing layer 503 is arranged above the second separation net 502, the microorganism layer 504 is arranged on the surface of the packing layer 503, the packing layer 503 can be broken stones or plastic products, and the microorganism layer 504 can degrade organic matters in the sewage, so that the denitrification effect is further improved.

The working principle is as follows: when the artificial wetland sewage treatment equipment with the denitrification function is used, a power supply is switched on, sewage enters the water collecting tank 101 through the water inlet 103, the grid plate 104 filters and isolates massive pollutants in the sewage, the sewage enters the sedimentation tank 102 through the through hole 105 for sedimentation, supernatant of the sedimentation tank 102 is pumped out through the water pump 106 and enters the first filtering tank 2 through the water conveying pipe 107, the first gravel layer 201 and the second gravel layer 202 can filter solid impurities in the sewage, so that the water body is clearer, the treated water enters the artificial wetland 3, the purified water plant layer 302 can absorb elements such as nitrogen and phosphorus in the sewage, the treated water enters the second filtering tank 4, the treated water enters the biological filter 5 after being filtered by the third gravel layer 401, the sewage is contacted with the microbial layer 504 on the surface of the packing layer 503, and the microbial layer 504 can degrade organic matters and the like in the sewage, the sewage is purified, nitrogen in the sewage is further treated, the denitrification effect of the sewage is improved, oxygen is filled into the biological filter 5 through the gas transmission external pipe 6, the activity of microorganisms is improved, the first separation net 501 and the second separation net 502 separate the gas transmission external pipe 6 from the filler layer 503, and the content which is not described in detail in the specification belongs to the prior art which is well known by a person skilled in the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

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 may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an artificial wetland sewage treatment device with denitrogenation function, includes preliminary treatment pond (1), its characterized in that: the right side and the first filtering ponds (2) of preliminary treatment pond (1) are linked together, and the right side and the constructed wetland (3) of first filtering ponds (2) are linked together, the right side and the second filtering ponds (4) of constructed wetland (3) are linked together, and the right side and the biological filter (5) of second filtering ponds (4) are linked together, the inside of biological filter (5) is provided with defeated gas outer pipe (6), and defeated gas outer pipe (6) run through the interior bottom in biological filter (5).

2. The constructed wetland sewage treatment equipment with the denitrification function as claimed in claim 1, wherein: the pretreatment tank (1) comprises a water collecting tank (101), a sedimentation tank (102), a water inlet (103), a grid plate (104), a through hole (105), a water pump (106) and a water conveying pipe (107), wherein the water collecting tank (101) and the sedimentation tank (102) are arranged in the pretreatment tank (1), the water collecting tank (101) is arranged on the left side of the sedimentation tank (102), the water inlet (103) is arranged on the left side of the water collecting tank (101), the grid plate (104) is arranged on the inner side wall of the water collecting tank (101), the water collecting tank (101) is communicated with the sedimentation tank (102) through the through hole (105), the water pump (106) is arranged in the sedimentation tank (102), the water pump (106) is connected with the water conveying pipe (107), and one end, far away from the water pump (106), of the water conveying pipe (107) penetrates through the sedimentation tank (102) and is arranged in the first filtering tank (2).

3. The constructed wetland sewage treatment equipment with the denitrification function as claimed in claim 1, wherein: first filtering ponds (2) are including first rubble layer (201), second rubble layer (202) and perforated plate (203), and are provided with first rubble layer (201) in first filtering ponds (2), and first rubble layer (201) below is provided with second rubble layer (202), and second rubble layer (202) below is provided with perforated plate (203).

4. The constructed wetland sewage treatment equipment with the denitrification function as claimed in claim 1, wherein: the artificial wetland (3) comprises a soil water layer (301) and a water purification plant layer (302), wherein the soil water layer (301) is arranged in the artificial wetland (3), and the water purification plant layer (302) is arranged on the soil water layer (301).

5. The constructed wetland sewage treatment equipment with the denitrification function as claimed in claim 1, wherein: the second filtering tank (4) comprises a third crushed stone layer (401), and the third crushed stone layer (401) is arranged in the second filtering tank (4).

6. The constructed wetland sewage treatment equipment with the denitrification function as claimed in claim 1, wherein: the biological filter (5) comprises a first separation net (501), a second separation net (502), a packing layer (503) and a microorganism layer (504), the biological filter (5) is internally provided with the first separation net (501), the second separation net (502) is arranged above the first separation net (501), the packing layer (503) is arranged above the second separation net (502), and the microorganism layer (504) is arranged on the surface of the packing layer (503).