CN211688493U

CN211688493U - Sewage purification device

Info

Publication number: CN211688493U
Application number: CN201922425184.7U
Authority: CN
Inventors: 叶纯; 叶翔龙; 董晨阳; 叶联
Original assignee: Shenzhen Qingyuanbao Technology Co ltd
Current assignee: Shenzhen Qingyuanbao Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-16
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a sewage treatment technical field discloses a sewage purification device, include: the device comprises a tower body, wherein a sewage draining area, a sewage purifying area and a water outlet area are sequentially arranged in the tower body from bottom to top; the sewage purification area is filled with microorganism embedding filler which is in a porous spherical structure and contains microorganisms, and the microorganism embedding filler can suspend in sewage and carry out biochemical degradation on the sewage through the microorganisms. The utility model provides a sewage purification device adopts the microorganism embedded filler that has porous ball structure to replace traditional filter material, and sewage purification is efficient, and the sludge volume of production is few, and microorganism embedded filler can collide each other when purifying sewage for mud can't be at the surperficial attached of packing, thereby makes this sewage treatment plant need not the backwash, has improved the operation energy consumption.

Description

Sewage purification device

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a sewage purification device.

Background

Along with the technical development of the environmental protection industry, the biological aerated filter is widely applied to the field of advanced treatment of domestic sewage and industrial sewage and is an important unit for advanced treatment of sewage. The operation of the biological aerated filter is mainly realized by arranging various fillers in the filter, culturing microorganisms to enable the microorganisms to be attached to the surfaces of the fillers, and adsorbing and degrading pollutants in sewage by utilizing the microorganisms attached to the surfaces of the fillers.

The degradation of the pollutants by the microorganisms is mainly carried out under the aerobic or anoxic state, so the biological aerated filter needs to carry out aeration in the tank to realize the degradation function of the pollutants. Meanwhile, microorganisms can proliferate after degrading pollutants, and microorganisms proliferated in the biological aerated filter can block the gaps of the filler after a period of time, so that the filter is blocked, and backwashing is needed to recover the function of the filter.

In order to meet the requirements of aeration and backwashing, the biological aerated filter in the prior art is generally provided with a sewage inlet pipe, a purified water backwashing pipe, an aerated air pipe, a backwashing air pipe, a filter head, a filter cap, a filter plate and other functional units at the bottom, so that the structural form of the filter is complex. Due to the complex structure and the difficult operation management, the filter tank often generates the phenomena of filler hardening, filter head filter cap blockage and the like, so that the filter tank is unstable in operation, influenced in use and high in labor intensity. And a large amount of air or clean water is required to be supplied for oxygen supply and high-pressure backwashing in the backwashing process, so that the energy consumption of the biological filter is high.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide a sewage purification device to solve the technical problem that the filler that the biological aerated filter under the prior art exists easily blocks up, the structure is complicated and need the backwash.

In order to achieve the purpose, the utility model adopts the following technical proposal:

there is provided a sewage purification apparatus including: the device comprises a tower body, wherein a sewage draining area, a sewage purifying area and a water outlet area are sequentially arranged in the tower body from bottom to top, a water inlet is formed in the tower body corresponding to the bottom of the sewage purifying area, and a water outlet is formed in the tower body corresponding to the top of the water outlet area;

the sewage purification area is filled with microorganism embedded fillers which are of porous spherical structures and contain microorganisms, and the microorganism embedded fillers can be suspended in sewage and can carry out biochemical degradation on the sewage through the microorganisms.

Preferably, the microorganism embedding filler is prepared by mixing and curing a microorganism preparation, a biological activator and an additive.

Preferably, the diameter of the microorganism embedding filler is 5-10 cm, and the density is 0.9-1.2 g/cm³In the meantime.

Preferably, the height of the sewage purification area accounts for 60-80% of the total height of the tower body.

Preferably, the sewage treatment system further comprises an aeration device, wherein the aeration device comprises an air inlet pipe and a plurality of aeration heads, the aeration heads are evenly arranged at the bottom of the sewage purification area at intervals, and the air inlet pipe penetrates through the tower body and is communicated with the plurality of aeration heads through pipelines.

Preferably, the sewage treatment device further comprises a mud guide baffle, wherein the mud guide baffle is arranged at the bottom of the sewage purification area and is positioned above the aeration device.

Preferably, the mud guide baffle comprises a plurality of mud blocking sheets uniformly arranged at intervals, and one mud blocking sheet is arranged above each aeration head.

Preferably, the water outlet device further comprises an overflow weir, wherein the overflow weir is arranged in the water outlet area and is communicated with the water outlet.

Preferably, the sewage treatment system further comprises a filler baffle plate, and the filler baffle plate is arranged between the sewage purification area and the water outlet area.

Preferably, the water inlet is provided with a plurality of water inlets, and the plurality of water inlets are arranged at equal intervals along the circumferential direction of the tower body corresponding to the bottom of the sewage purification area.

The utility model has the advantages that:

the utility model provides a sewage purification device adopts the microorganism embedded filler that has porous structure to replace traditional filter material, and the microorganism embedded filler specific surface area who has porous structure is big, and the pollutant is got rid of efficiently, and the sludge volume of production is few, can reduce the possibility of filler jam. Moreover, the process of degrading pollutants by embedding the filler with the microorganisms is suspended in sewage, and the pollutants can be degraded and continuously collided with each other under the drive of water flow, so that a scrubbing effect is generated, and the attachment of sludge generated by microorganism proliferation on the surface of the filler is avoided. Therefore, the sewage purification device does not need to set a backwashing program, the utilization efficiency of the device is improved, and the operation energy consumption is greatly reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sewage purification device provided by an embodiment of the present invention.

In the figure: 1. a tower body; 11. a blowdown area; 12. a sewage purification area; 13. a water outlet area; 2. a water inlet; 3. a water outlet; 4. embedding filler by microorganism; 5. an aeration device; 51, an aeration head; 52. an air inlet pipe; 6. a mud guide baffle plate; 61. a mud guard sheet; 7. an overflow weir; 8. a filler baffle; 9. a sewage draining outlet.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, this embodiment provides a sewage purification device, and this sewage purification device is tower pot type structure, and it includes tower body 1, follows supreme blowdown district 11, sewage purification district 12 and the play pool 13 of being divided into in proper order down in the inside of tower body 1, is provided with water inlet 2 on the tower body 1 that corresponds in the bottom of sewage purification district 12 for let in pending sewage, be provided with delivery port 3 on the tower body 1 that corresponds at the top of play pool 13, be used for discharging the sewage after the purification. The sewage purification area 12 is filled with microorganism embedding filler 4, the microorganism embedding filler 4 is in a porous spherical structure and can suspend in sewage, and the interior of the microorganism embedding filler contains microorganisms capable of degrading sewage. Sewage flows into the sewage purification area 12 from the water inlet 2, is biochemically degraded by microorganisms in the microorganism embedding filler 4, sludge generated after degradation treatment is downwards settled and enters the sewage discharge area 11, and the degraded and purified sewage is upwards discharged out of the tower through the overflow weir 7 and the water outlet 3, so that the purification of the sewage is realized.

The specific structure of the tower body 1 is shown in fig. 1. The sewage discharge area 11 in the tower body 1 is used for discharging sludge after sewage purification, and the height of the sewage discharge area 11 is set to be 10-20% of the height of the tower body 1. In this embodiment, the sewage draining area 11 is arranged in a funnel shape to prevent the sludge from being blocked in the sewage draining area 11, and the bottom of the funnel is provided with a sewage draining outlet 9 so as to facilitate the diversion and the discharge of the sludge.

The sewage purification area 12 in the tower body 1 is used for filling the microorganism embedding filler 4 to purify sewage, and the height of the sewage purification area 12 is set to be 60-80% of the total height of the tower body 1 so as to improve the sewage purification efficiency. The bottom of sewage purification district 12 is provided with leads mud baffle 6, and the top is provided with filler baffle 8 to realize the isolation between sewage purification district 12 and sewage discharging zone 11 and the play pool 13, and form the space that is used for holding microorganism embedding filler 4.

Specifically, lead mud baffle 6 and weld on 1 inner wall of tower body of sewage purification district 12 bottom, lead mud baffle 6 and include a plurality of fender mud pieces 61, a plurality of fender mud pieces 61 are along the even interval arrangement of the cross section of sewage purification district 12 bottom, connect through the connecting steel plate of vertical setting between the fender mud piece 61, form the clearance that is used for mud to pass through between a plurality of fender mud pieces 61. Fender mud piece 61 is the V-arrangement structure to in the drop of mud, because the diameter of microorganism embedding filler 4 generally is between 5 ~ 10cm, so in this embodiment, the space between fender mud piece 61 sets up to 2 ~ 4cm, prevents under the prerequisite of guaranteeing that mud passes through that microorganism embedding filler 4 from dropping. Filler baffle 8 welds on the 1 inner wall of tower body at sewage purification district 12 tops, and filler baffle 8 is porous form flat structure, and the diameter of its trompil is between 2 ~ 4cm to prevent passing of microorganism embedding filler 4 when guaranteeing to go out water.

A water inlet 2 which penetrates through is arranged on the tower body 1 corresponding to the bottom of the sewage purification area 12 and is used for introducing sewage. In this embodiment, the position setting of water inlet 2 is in leading mud baffle 6 top 5 ~ 10cm department to utilize the horizontal impact force of rivers will subside to leading mud baffle 6 on mud is broken up and make it fall into the space between fender mud piece 61, prevent the jam on leading mud baffle 6 of mud. Further, the water inlet 2 sets up to a plurality ofly, and a plurality of water inlets 2 set up along 1 circumference of the tower body of sewage purification district 12 bottoms equidistant to improve the stability of water distribution, improve sewage purification's efficiency. Preferably, the number of the water inlets 2 is 6, and the 6 water inlets 2 are arranged at equal intervals along the circumference of the tower body 1.

Further, the sewage purification apparatus provided by the present embodiment further includes an aeration apparatus 5. The aeration device 5 is arranged at the bottom in the sewage purification area 12 and is positioned below the mud guide baffle 6, and the aeration device 5 is used for filling compressed air into the tower body 1 so as to provide oxygen for microbial degradation of sewage. The aeration device 5 comprises a plurality of aeration heads 51 and an air inlet pipe 52, the aeration heads 51 are uniformly arranged at intervals along the cross section of the bottom of the sewage purification area 12, and the air inlet pipe 52 penetrates through the tower body 1 and is communicated with each aeration head 51 through a pipeline. In this embodiment, the mud guard 61 is vertically corresponding to the aeration heads 51, that is, one mud guard 61 is disposed above each aeration head 51, and air enters the sewage purification area 12 through the gap between the mud guard 61, thereby preventing the clogging of the aeration heads 51 by the mud. Preferably, the aeration head 51 chooses for use the micropore titanium aeration head, and micropore aperture of micropore titanium aeration head is 0.22 ~ 100 mu m, and porosity 35 ~ 50%, its aeration resistance is little, and the bubble diffusion is even, and aeration bubble diameter is between 0.1 ~ 2mm, and it is efficient to aerify, thereby makes the utility model provides a sewage purification device need not to use large-traffic aeration fan, only needs to provide the dissolved oxygen that a small amount of compressed air can guarantee in the sewage to practice thrift the energy consumption.

The sewage purification area 12 is filled with microorganism embedding filler 4, and the microorganism embedding filler 4 is a key part for sewage degradation. The microorganism embedding filler 4 is formed by uniformly mixing microorganism preparations (bacillus and monad), biological activating agents (biological enzyme), phenolic resin (adhesive), additive limestone powder (weighting agent), glass fiber yarns (micropore supporting structure) and the like, and is cured into the product with the diameter of 5-10 cm and the density of 0.9-1.2 g/cm under the curing action of the phenolic resin³A porous spherical structure between the two. The microorganism embedding filler 4 with the porous spherical structure has the characteristics of large specific surface area, wear resistance, difficult breakage and the like, can increase the contact area with sewage, and improves the sewage degradation and purification efficiency. The density of the microorganism embedding filler 4 is set to be 0.9-1.2 g/cm³So that the density of the wastewater is close to that of the wastewater, and the wastewater can suspend in the wastewater and continuously react with the wastewater to further improve the purification efficiency. Of course, in other embodiments, the diameter and density of the microorganism-embedded filler 4 can be selected from other suitable values according to the nature of the sewage, and all of them fall within the protection scope of the present invention.

The microorganism embedding filler 4 degrades pollutants in the sewage to proliferate and form biological sludge, and in this embodiment, the microorganism embedding filler 4 is set to be a spherical structure with density close to that of the sewage, so that the attachment and blockage of the sludge on the microorganism embedding filler 4 are effectively avoided. Specifically, in the process of degrading and purifying sewage by the microorganism embedding filler 4, the microorganism embedding filler 4 continuously moves under the driving of water flow and air flow, and the microorganism embedding filler 4 continuously collides and rubs with each other to form a rubbing effect, so that the sludge which is proliferated and attached to the microorganism embedding filler 4 is rubbed off, and the sludge finally enters the sewage discharge area 11 under the action of gravity. The structure of the microorganism embedding filler 4 ensures that the sewage purification device provided by the embodiment can continuously operate without backwashing, the utilization efficiency of the device is high, and the operation energy consumption is low.

The water outlet area 13 is arranged at the top of the tower body 1, and the height of the water outlet area 13 is set to be 8-10% of the total height of the tower body 1. Be provided with overflow weir 7 in the water outlet zone 13, overflow weir 7 sets up in the position of 0.5 ~ 1m above filler baffle 8, is provided with delivery port 3 on the tower body 1 that overflow weir 7 corresponds, and

delivery port

3 and 7 high parallel and level of overflow weir communicate for discharge the sewage after the purification. The overflow weir 7 is a liquid overflow structure and has the function of enabling liquid to overflow uniformly, and optionally, the overflow weir 7 is one of a triangular weir, a trapezoidal weir or a rectangular weir. Preferably, in this embodiment, the overflow weir 7 is a triangular weir, which has the advantage of stable and uniform water outlet. The purified sewage is discharged by gravity from the overflow weir 7 to the water outlet 3.

The working principle of the sewage purification device provided by the utility model is described below with the accompanying drawings:

after the industrial sewage is subjected to primary treatment, the Chemical Oxygen Demand (COD) of the effluent quality is about 103mg/L, the ammonia nitrogen content is 15.6mg/L, and the effluent cannot be discharged without meeting the relevant environmental protection requirements. Through the utility model provides a sewage purification device carries out secondary treatment to sewage.

Firstly, the sewage is pressurized by a water pump, so that the sewage enters the tower body 1 of the sewage purification device from the water inlet 2, and meanwhile, compressed air is supplied to the tower body 1 through the aeration device 5. The sewage flows through the sewage purification area 12 and infiltrates the microorganism embedding filler 4 filled in the sewage purification area 12, under the condition that the dissolved oxygen in the water is sufficient, the microorganisms such as bacillus, monad and the like in the microorganism embedding filler 4 are activated and carry out biochemical reaction with pollutants in the sewage to decompose the pollutants into carbon dioxide and water, and the microorganisms proliferate simultaneously to form sludge.

Under ascending rivers and bubble effect, globular microorganism embedding filler 4 constantly moves at random and produce collision and friction each other in tower body 1, the microorganism mud of microorganism embedding filler 4 surface multiplication drops from microorganism embedding filler 4 surface because collision and friction effect, the mud that drops mutually collides in the filler space and adsorbs formation mud group, when mud group drops to leading on mud baffle 6, drop from leading the space of mud baffle 6 under the transverse impact effect of water inlet 2 rivers, can not accumulate or produce the jam on leading mud baffle 6, mud finally subsides to blowdown area 11, discharge by drain 9.

Through the utility model provides a sewage purification device handles the back, and the COD of sewage reduces to 47.2mg/L, and ammonia nitrogen content reduces to 0.81 mg/L, has satisfied relevant environmental protection requirement. Compared with the traditional biological filter, the sewage purification device has no backwashing program, can continuously run for 24 hours, and improves the utilization efficiency of the device; a fan is not needed for aeration, so that energy consumption is saved, and noise is avoided; the tower body 1 has few internal parts, simple structure, simple and convenient installation and construction and good effluent quality. Is very suitable for the field of advanced treatment of domestic sewage and industrial sewage.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A sewage purification apparatus, comprising: the device comprises a tower body (1), wherein a sewage draining area (11), a sewage purifying area (12) and a water outlet area (13) are sequentially arranged in the tower body (1) from bottom to top, a water inlet (2) is formed in the tower body (1) corresponding to the bottom of the sewage purifying area (12), and a water outlet (3) is formed in the tower body (1) corresponding to the top of the water outlet area (13);

microorganism embedding filler (4) is filled in the sewage purification area (12), the microorganism embedding filler (4) is of a porous spherical structure, microorganisms are contained in the microorganism embedding filler (4), and the microorganism embedding filler (4) can be suspended in sewage and can carry out biochemical degradation on the sewage through the microorganisms.

2. The wastewater purification apparatus according to claim 1, wherein the microorganism-embedded filler (4) is prepared by mixing and solidifying a microorganism preparation, a biological activator and an additive.

3. The sewage purification apparatus according to claim 1, wherein the diameter of the microorganism-embedded filler (4) is between 5 and 10cm, and the density is between 0.9 and 1.2g/cm³In the meantime.

4. Sewage purification apparatus according to claim 1, characterized in that the height of the sewage purification zone (12) is 60-80% of the total height of the tower (1).

5. The sewage purification apparatus according to claim 1, further comprising an aeration device (5), wherein the aeration device (5) comprises an air inlet pipe (52) and a plurality of aeration heads (51), the plurality of aeration heads (51) are uniformly arranged at intervals at the bottom of the sewage purification area (12), and the air inlet pipe (52) penetrates through the tower body (1) and is communicated with the plurality of aeration heads (51) through a pipeline.

6. Sewage purification apparatus according to claim 5, further comprising a sludge guide baffle (6), said sludge guide baffle (6) being disposed at the bottom of said sewage purification zone (12) and above said aeration device (5).

7. The sewage purification apparatus according to claim 6, wherein the sludge guide baffle (6) comprises a plurality of sludge baffles (61) uniformly spaced, and one sludge baffle (61) is arranged above each aeration head (51).

8. The sewage purification apparatus according to claim 1, further comprising a weir (7), wherein the weir (7) is disposed in the outlet zone (13), and wherein the weir (7) is in communication with the outlet (3).

9. The effluent purifying apparatus of claim 1, further comprising a filler baffle (8), said filler baffle (8) being disposed between said effluent purifying zone (12) and said effluent zone (13).

10. The sewage purification apparatus according to claim 1, wherein the water inlet (2) is provided in plurality, and the plurality of water inlets (2) are arranged at equal intervals along the circumference of the tower body (1) corresponding to the bottom of the sewage purification area (12).