CN219363400U - Bacterial algae reactor for dephosphorization - Google Patents

Abstract

The utility model provides a bacterial algae reactor for dephosphorization, wherein the reactor comprises a tank body, a rotating shaft suspended on the tank body and a plurality of discs sleeved in different areas of the rotating shaft, and light source parts are distributed between adjacent discs; the surface of each disc is radially provided with a plurality of water scattering structures, one end of each water scattering structure is communicated with the center of the disc, the other end of each water scattering structure is connected with a corresponding water collecting bucket, and each water collecting bucket is arranged at the edge of the corresponding disc; the surface of each disc also comprises a plurality of grooves which are concentrically or radially distributed, a plurality of water permeable holes are distributed on the side wall of each water scattering structure at intervals, and each water permeable hole in the same water scattering structure is communicated with the corresponding groove of the corresponding disc; and an asymmetrically arranged aeration pipe is also arranged below the tank body. The utility model aims to improve the dephosphorization efficiency.

Description

Bacterial algae reactor for dephosphorization

Technical Field

The utility model relates to the technical field of bacterial algae reactors, in particular to a bacterial algae reactor for dephosphorization.

Background

At present, a large amount of domestic sewage and industrial wastewater rich in nitrogen and phosphorus and farmland runoffs containing pesticides and fertilizers are discharged into water bodies such as lakes, rivers and oceans to cause eutrophication of the water bodies, so that the pollution of nitrogen and phosphorus of the water bodies is increasingly serious, serious water environment pollution, water body eutrophication, red tide generation and other phenomena of the water bodies are caused, and microorganisms in industrial water equipment are also caused to reproduce to form biological scale and corrosion, so that the normal operation of industrial production is influenced. The current treatment for this situation is biological and chemical phosphorus removal. For example, the conventional biological treatment method can remove part of phosphorus from wastewater through the discharge of excess sludge, and some special processes or common processes with the function of phosphorus removal after the operation mode is adjusted can obtain better phosphorus removal effects, and specific methods include A/O, A2/O, SBR, oxidation ditch and the like. However, biological treatment methods have limited phosphorus removal effects, and chemical phosphorus removal is often required or combined with biological treatment when phosphorus emission standards are high. Meanwhile, chemical dephosphorization is to add chemical agents into water to generate insoluble phosphate, and then remove phosphorus from sewage by precipitation, air floatation or filtration and other methods, wherein the chemical dephosphorization-based general agents comprise lime, aluminum salt, ferric salt and the like, and the chemical dephosphorization treatment efficiency is high, but the chemical dephosphorization treatment method has the advantages of large dosage, high treatment cost and large production of chemical sludge. Furthermore, the above-mentioned dephosphorization treatments have certain drawbacks, and the cost performance of the treatments is not high, so that it is highly desirable to provide a dephosphorization treatment device with high cost performance.

Disclosure of Invention

The utility model mainly aims to provide a bacterial algae reactor for dephosphorization, and aims to solve the problem of low cost performance of dephosphorization treatment in nitrogen and phosphorus sewage in the prior art.

In order to achieve the above purpose, the utility model provides a bacterial algae reactor for dephosphorization, which comprises a tank body, a rotating shaft suspended on the tank body and a plurality of discs sleeved on different areas of the rotating shaft, wherein a light source part is arranged between adjacent discs;

the surface of each disc is radially provided with a plurality of water scattering structures, one end of each water scattering structure is communicated with the center of the disc, the other end of each water scattering structure is connected with a corresponding water collecting bucket, and each water collecting bucket is arranged at the edge of the corresponding disc;

the surface of each disc also comprises a plurality of grooves which are concentrically or radially distributed, a plurality of water permeable holes are distributed on the side wall of each water scattering structure at intervals, and each water permeable hole in the same water scattering structure is communicated with the corresponding groove of the corresponding disc;

and an asymmetrically arranged aeration pipe is also arranged below the tank body.

Optionally, when the algae mixed liquid is filled in the tank body, each disc part is immersed below the liquid level of the algae mixed liquid.

Alternatively, each disc has a depth of immersion of 70-85% of the radius of the disc.

Optionally, each disc is a light-transmitting disc structure.

Optionally, each light source piece is connected with an artificial light source component and a solar energy component respectively.

Optionally, the discs are spaced apart by a distance of 20mm to 200mm.

Optionally, each water dispersing structure is a water dispersing pipe or a water dispersing groove.

Alternatively, each disc has a diameter of 0.5-3 meters.

Optionally, the water outlet of each water permeable hole in the same water scattering structure faces to an included angle of more than 0 degrees and less than or equal to 90 degrees with the surface of the corresponding disc.

The beneficial effects are that:

(1) By arranging the aeration pipe, the turntable is driven to rotate by oxygen flow while the water body is aerated, so that the independent arrangement of a driving device is avoided, and the whole reactor has a simple structure and is easy to maintain;

(2) The combination of the disc, the water collecting bucket and the water dispersing structure realizes the circulation that the bacteria and algae mixed liquor in the tank body is continuously lifted and then flows back to the tank body, and the circulation process can promote the mixed liquor to fully receive the irradiation of the light source and reoxygenation, thereby being beneficial to the continuous growth of algae and effectively removing the phosphorus in the water;

(3) The concave-convex structure on the surface of the disc promotes the mixed liquid to fully receive the irradiation of the light source and reoxygenation, delays the time for the lifted mixed liquid to flow back to the tank body, and improves the growth efficiency of bacteria and algae, thereby improving the dephosphorization efficiency;

(4) Bacteria and algae in the pond can grow in a suspending way, all bacteria and algae can participate in photosynthesis under the lifting action of the turntable, the growth speed of the algae and bacteria is 3-5 times that of the biological film, the material conversion efficiency is higher, and the dephosphorization cost performance is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a first embodiment of a algae reactor for removing phosphorus according to the present utility model;

FIG. 2 is a schematic diagram of a refinement of the spindle and disk shown in FIG. 1;

FIG. 3 is a schematic view of the structure of the disc surface shown in FIG. 1;

FIG. 4 is a schematic view of the detailed structure of the bucket, the water distribution structure and the disks shown in FIG. 1;

FIG. 5 is a schematic view showing the structure of the surface of a tray in a second embodiment of the reactor for removing phosphorus according to the present utility model.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				1	Pool body	2	Disc sheet
3	Rotating shaft	4	Water collecting bucket
				5	Water dispersing structure	6	Aeration pipe
7	Light source piece	8	Solar energy assembly
				21	Protrusions	22	Concave ring unit
23	Special-shaped groove

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 5, the present utility model provides an embodiment of a bacterial algae reactor for removing phosphorus, as shown in fig. 1, the reactor includes a tank body 1, a rotating shaft 3 suspended on the tank body 1, and a plurality of disks 2 sleeved on different areas of the rotating shaft 3. A light source 7 is arranged between the adjacent discs 2, a plurality of water dispersing structures 5 are radially arranged on the surface of each disc 2, one end of each water dispersing structure 5 is communicated with the center of the disc 2, the other end of each water dispersing structure is connected with a corresponding water collecting bucket 4, each water collecting bucket 4 is arranged at the edge of the corresponding disc 2, and as shown in fig. 2, the disc 2 is vertical to the liquid level. In practical application, bacteria and algae mixed liquor is filled in the tank body 1, bacteria and algae with certain concentration grow in the bacteria and algae mixed liquor, the algae can directly absorb phosphate, an aerator pipe 6 is further arranged below the tank body 1, a plurality of discs 2 can be driven to rotate around a rotating shaft 3 under the action of oxygen air flow introduced into the aerator pipe 6, a water collecting bucket 4 is driven to rotate, and the bacteria and algae mixed liquor can be collected when the water collecting bucket 4 is immersed under water, and the mixed liquor and algae therein are lifted to be above the liquid level and flow centripetally. When the algae is lifted above the water surface and scattered, the light energy can be absorbed to complete photosynthesis, the rapid growth of the algae is realized, and when the algae flows into the tank body, the phosphate in the sewage can be directly absorbed, so that the device can realize the circulation that the bacteria-algae mixed solution in the tank body is continuously lifted firstly and then flows back to the tank body, the circulation process is favorable for the continuous growth of the algae, and the purpose of effectively removing the phosphorus in the water can be realized. Meanwhile, the independent arrangement of a driving device is avoided, and the whole reactor is simple in structure and easy to maintain.

Further, as shown in fig. 3, the surface of each disc 2 further includes a plurality of concave ring units 22 concentrically distributed; preferably, annular protrusions 21 are further arranged between adjacent concave ring units 22, a plurality of water permeable holes are distributed on the side wall of each water scattering structure 5 at intervals, each water permeable hole in the same water scattering structure is communicated with the corresponding concave ring unit 22 corresponding to the disc 2, and then bacteria and algae mixed liquid lifted by the water collecting bucket 4 can be uniformly dispersed on the concave ring units and protrusions of the disc through the water permeable holes of the water scattering structure 5 and gradually flow back into the tank body, the concave-convex structure promotes the mixed liquid to fully receive light source irradiation and reoxygenation, the time of the lifted mixed liquid flowing back to the tank body is delayed, bacteria and algae in the tank body can be suspended and grown, and all bacteria and algae can participate in photosynthesis under the lifting action of the turntable, so that the growth efficiency of the bacteria and the algae is improved.

Further, each water dispersing structure 5 is a water dispersing pipe or a water dispersing groove.

Further, aeration pipes 6 are asymmetrically installed below the disc 2 in the tank body 1, wherein the asymmetrically installed aeration pipes 6 refer to different numbers of the aeration pipes 6 distributed on two sides of the tank body along the radial direction of the disc. Preferably, the aeration pipe 6 is a perforated aeration pipe, so that the buoyancy of bubbles at two sides of the rotating shaft 3 is different, and the viscous effect of the surface of the disc 2 on the nearby moving fluid can drive the rotating disc 2 to rotate, and meanwhile, a part of oxygen is also supplied to the water body.

Further, as shown in FIG. 2, the depth of immersion of the disks 2 is less than the disk radius, preferably each disk 2 is 70-85% of the disk radius, and typically the rotational speed of the disks is 1-4 r/min.

Further, the opening directions of the water collection hoppers 4 positioned on the same disc 2 are consistent, so that the circulation frequency of continuously lifting and then refluxing the bacteria and algae mixed liquid in the tank body to the tank body is enhanced.

Further, each disc 2 has a light-transmitting disc structure, and each light source 7 is connected to an artificial light source assembly and a solar energy assembly 8, respectively, so that when the solar energy is insufficient, the artificial light source assembly can supplement the light energy required by the growth of algae. Preferably, the disc 2 is made of glass fiber reinforced plastic or other polymer materials. More preferably, each disc 2 has a diameter ranging from 0.5 to 3 meters and each disc 2 is spaced apart by a distance ranging from 20mm to 200mm.

Further, the water outlets of the water permeable holes positioned in the same water scattering structure 5 face to an included angle of more than 0 and less than or equal to 90 degrees with the surface of the corresponding disc 2, and preferably, the water outlets face to be vertical to the surface of the corresponding disc 2; or may be inclined at an angle to the surface of the corresponding disc 2.

Further, the present utility model also provides a second embodiment of a bacterial algae reactor for removing phosphorus, which is different from the first embodiment in that the surface structure of the disc is different from the first embodiment, and the surface of the disc 2 is provided with a plurality of radial distribution shaped grooves 23, preferably, as shown in fig. 5, each shaped groove 23 extends from the center of the disc to the edge of the disc in a bending manner and is distributed in a radial manner as a whole, and corresponding protrusions 21 are further arranged between the adjacent shaped grooves 23, so that the time of the bacterial algae mixed solution on the surface of the disc can be prolonged, the bacterial algae growth efficiency is further improved, and the phosphorus removal efficiency is further improved.

Further, the grooves 23 of each disc 2 may also be branched in the radial direction. In addition, other structural arrangements which can prolong the time of the bacteria-algae mixed liquor on the surface of the disc can be applied to the bacteria-algae reactor for dephosphorization.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or system that comprises the element. The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (9)

1. The bacterial algae reactor for removing phosphorus is characterized by comprising a tank body (1), a rotating shaft (3) suspended on the tank body (1) and a plurality of discs (2) sleeved on different areas of the rotating shaft (3), wherein light source elements (7) are arranged between adjacent discs (2);

a plurality of water scattering structures (5) are radially distributed on the surface of each disc (2), one end of each water scattering structure (5) is communicated with the center of the disc (2), the other end of each water scattering structure is connected with a corresponding water collecting bucket (4), and each water collecting bucket (4) is arranged at the edge of the corresponding disc (2);

the surface of each disc (2) further comprises a plurality of grooves which are concentrically or radially distributed, a plurality of water permeable holes are distributed on the side wall of each water scattering structure (5) at intervals, and each water permeable hole in the same water scattering structure is communicated with the corresponding groove of the corresponding disc (2);

an asymmetrically arranged aeration pipe (6) is also arranged below the tank body (1).

2. The algae removal reactor for phosphorus removal according to claim 1, wherein each disc (2) is partially immersed below the liquid surface of the algae mixture when the algae mixture is filled into the tank (1).

3. The algae reactor for phosphorus removal according to claim 2, characterized in that the depth of immersion of each disc (2) is 70-85% of the disc radius.

4. A bacterial algae reactor for phosphorus removal according to any one of claims 1 to 3 wherein each disc (2) is of a light transmissive disc construction.

5. The reactor for removing phosphorus according to claim 4, wherein each light source member (7) is connected to an artificial light source assembly and a solar energy assembly (8), respectively.

6. The reactor for removing phosphorus according to claim 4, wherein the separation distance of the plates (2) is 20mm to 200mm.

7. The algae reactor for phosphorus removal according to claim 4, wherein each water dispersing structure (5) is a water dispersing pipe or a water dispersing tank.

8. The reactor for removing phosphorus according to any one of claims 5 to 7, wherein each disc (2) has a diameter of 0.5 to 3 meters.

9. The algae reactor for removing phosphorus according to claim 8, wherein the water outlet of each water permeable hole in the same water scattering structure (5) faces an included angle of more than 0 degrees and less than or equal to 90 degrees with the surface of the corresponding disc (2).