CN219409423U - Biological filter filled with polypropylene microporous biological filler - Google Patents
Biological filter filled with polypropylene microporous biological filler Download PDFInfo
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- CN219409423U CN219409423U CN202320514119.5U CN202320514119U CN219409423U CN 219409423 U CN219409423 U CN 219409423U CN 202320514119 U CN202320514119 U CN 202320514119U CN 219409423 U CN219409423 U CN 219409423U
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- polypropylene microporous
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model belongs to the field of biological purification of aquaculture water, and particularly relates to a filtering device filled with polypropylene microporous biological filler, which comprises a plurality of filling layers, wherein the filling layers are positioned in a filtering area; the filling layer is internally loaded with polypropylene microporous biological filler; the filling layer is provided with a flushing port which is used for flushing the polypropylene microporous biological filler in the filling layer. The polypropylene microporous biological filler is utilized to the biological filtering device, so that ammonia nitrogen can be reduced, suspended matter concentration can be reduced, oxygenation can be realized, and carbon dioxide can be removed.
Description
Technical Field
The utility model belongs to the field of biological purification of aquaculture water, and particularly relates to a filtering device filled with polypropylene microporous biological filler.
Background
Along with the increasing demands of people on aquatic products, the development of the aquaculture industry becomes the trend of the current society, and a green, efficient and safe circulating water culture mode is generated.
A Recirculating Aquaculture System (RAS) is an advanced aquaculture production system based on traditional fishery aquaculture, which circulates and updates aquaculture water in real time to ensure that aquatic organisms grow in a suitable water environment. The circulating water culture system has the advantages of saving water, saving land, stabilizing, reducing environmental pollution and the like.
The common treatment core process of the circulating water culture system is as follows: physical filtration, biological filtration, disinfection and sterilization, oxygenation and temperature regulation. Common in the biofiltration section is the moving bed biofilm reactor process (MBBR). This process is widely accepted for ease of use. However, in some fields such as the rough standard of the fish fries of circulating water, because of the defects of the MBBR technology (only having the nitrification function), the specific requirements (such as higher water transparency and CO removal) are not satisfied 2 And oxygen increasing, etc.). At this point, a nitrifying type biotrickling process was introduced. The filler commonly used in the biological drip filtration process is ceramsite, volcanic rock, plastic ring, expanded polystyrene particles and the like. However, ceramsite volcanic rock has high specific gravity, suspended matters are difficult to remove by plastic rings, expanded polystyrene particles are difficult to degrade, and carcinogens such as dioxin and the like are easy to generate after combustion degradation.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a filtering device filled with polypropylene microporous biological filler, which can purify water, reduce ammonia nitrogen in water, reduce suspended matter concentration, increase oxygen and remove carbon dioxide.
The aim of the utility model can be achieved by the following technical scheme:
a biological filter filled with polypropylene microporous biological filler comprises a plurality of filling layers, wherein the filling layers are positioned in a filtering area;
the filling layer is internally loaded with polypropylene microporous biological filler;
the filling layer is provided with a flushing port which is used for flushing the polypropylene microporous biological filler in the filling layer.
Further, the device comprises a cylinder body which is vertically arranged, porous plates which are in one-to-one correspondence with filling layers are arranged in the cylinder body, and the filling layers are inner cavities formed by enclosing the inner wall of the cylinder body and the upper end surfaces of the porous plates;
the multi-well plate comprises an array of mesh openings.
Further, the mesh size of the porous plate is smaller than the particle size of the polypropylene microporous biological filler particles.
Further, a plurality of flushing ports are arranged at the same filling layer; the plurality of flushing ports are arranged on the support in an array along the axial direction of the cylinder and/or the radial direction of the cylinder.
Further, a runner is arranged in the bracket and is communicated with the flushing port, one end of the runner is connected with a flushing pipe, and the other end of the flushing pipe extends into flushing water to be connected with a flushing pump.
Further, the lower end of the cylinder body comprises a storage bin, the storage bin is positioned below the most downstream filling layer along the flowing-out direction of the liquid, and an aerator is arranged in the storage bin.
Further, a mud valve is arranged in the storage bin.
Further, the device comprises a liquid level meter which is vertically arranged, and the lower end of the liquid level meter is communicated with the storage bin.
Further, the device comprises a water outlet pipeline, wherein one end of the water outlet pipeline is communicated with the storage bin, and the other end of the water outlet pipeline extends to the culture pond; a water pump is arranged in the culture pond, the water pump pumps water in the culture pond to a water distribution disc through a pipeline, and the water distribution disc is positioned above the filling layer at the most upstream of the storage bin along the outflow direction of liquid.
The utility model has the beneficial effects that:
1. the polypropylene microporous biological filler is utilized to the biological filtering device, so that ammonia nitrogen can be reduced, suspended matter concentration can be reduced, oxygenation can be realized, and carbon dioxide can be removed;
2. by arranging the aeration device, the increase of the oxygen content in the microbial nitrification oxygen supply and water purification process on the filler can be realized;
3. the biological filter device can be used for purifying and cleaning microporous biological filler containing aged biological membranes and sludge polypropylene, and stably operates for a long time;
4. the method can be applied to water purification and circulation, and is particularly suitable for circulating water culture systems.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a schematic view showing the overall structure of a biological filtration device according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of a biofilter unit according to an embodiment of the present utility model, which is not filled with microporous bio-filler of polypropylene;
FIG. 3 is a schematic view showing the structure of a flushing port and a holder of a biofilter unit according to an embodiment of the utility model;
FIG. 4 is a schematic view of a porous plate structure of a biological filtration device according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a biological filter with a fluid level gauge according to one embodiment of the present utility model;
FIG. 6 is a schematic diagram of a recirculating aquaculture system according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
The utility model adopts polypropylene microporous biological filler 2 as the filling material of the nitrifying biological filter device. The filler has light weight and large specific surface area. And can meet the requirements of the application fields such as fish fry scale thickness and the like on the concentration of suspended matters in the water body. Combustion to produce CO after the end of the service life 2 And H 2 O and other environmental pollutants; the biological filter tower filled with the filler can reduce ammonia nitrogen in water, reduce suspended matter concentration, increase oxygen and remove dioxideAnd (3) carbon.
As shown in fig. 2 to 5, a bio-filter device filled with polypropylene microporous bio-filler comprises a plurality of filling layers 1, wherein the filling layers 1 are positioned in a filtering area; the filling layer 1 is filled with polypropylene microporous biological filler 2;
the filling layer 1 is provided with a flushing port 3, and the flushing port 3 is used for flushing the polypropylene microporous biological filler 2 in the filling layer 1.
When in use, the water body to be purified flows through the filtering area, and the polypropylene microporous biological filler 2 in the filtering area is used for purifying the water body to be purified; the number of the filling layers 1 is multiple, and the polypropylene microporous biological fillers 2 in the filling layers 1 are used for purifying water in sequence, so that the water purifying effect is further improved; when the initially purified water body contacts the polypropylene microporous biological filler 2, a stable biological film is formed on the polypropylene microporous biological filler 2, and the biological film can degrade ammonia nitrogen in the culture water body; after purifying water body for a period of time, for example, the polypropylene microporous biological filler 2 is attached with sludge and aged biological films, the purification efficiency of the water body is reduced at the moment, and in the application, the flushing port 3 is utilized to flush the polypropylene microporous biological filler 2 by introducing flushing water, so that the purification of the polypropylene microporous biological filler 2 is realized, and the purification efficiency of the polluted polypropylene microporous biological filler 2 to the water body is improved.
Specifically, the polypropylene microporous biological filler 2 is generally foamed polypropylene at present, wherein the foamed polypropylene can be hollow foamed polypropylene obtained from tin-free general light materials limited company or extruded foamed polypropylene with different forms obtained from a fertilizer combination innovative light materials limited company.
When the foamed polypropylene is sprayed onto its surface with sewage, contaminants, and bacteria adhere to the surface of the foamed polypropylene, and microorganisms are propagated on the surface thereof in a large amount to form a biofilm. Aiming at the mechanism of forming a biological film on the surface of a filter material and purifying water body by utilizing the biological film, the water pollution control engineering is described in detail in the fourth edition of the book.
Specifically, ammonia nitrogen passing through the water body can be reduced, the concentration of suspended matters in the water body can be reduced, and oxygen can be increased and carbon dioxide in the water body can be removed through the biomembrane on the surface of the foamed polypropylene; realizing water purification.
Certainly can be to washing mouthful 3 and be the slope setting that inclines up, washing mouthful 3 slope water spray this moment, rotatory with polypropylene micropore biofilm carrier friction to realize good cleaning performance.
In the illustration of the application, a cylinder 4 which is vertically arranged is shown, porous plates 41 which are in one-to-one correspondence with a filling layer 1 are arranged in the cylinder 4, and the filling layer 1 is an inner cavity 42 formed by enclosing the inner wall of the cylinder 4 and the upper end face of the porous plates 41; perforated plate 41 includes an array of mesh openings 410.
When the filter is used, water to be purified is sprayed into the cylinder 4 from the upper end of the cylinder 4, and the polypropylene microporous biological filler 2 in the filtering area is used for purifying the water to be purified; the purified water flows out of the mesh 410 of the porous plate 41 with the water.
For the purposes of this application, the rinse orifice 3 is adjacent to the upper end surface of the perforated plate 41; the flushing port 3 is utilized to flush the upper end surfaces of the polypropylene microporous biological filler 2 and the porous plate 41, and as the polypropylene microporous biological filler 2 is light in material, the stacking density of the polypropylene microporous biological filler 2 is 20-50 kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the In the stage of utilizing flushing water, the flushing strength is 2.89L/m 2 S, which is relatively large, the polypropylene microporous biological filler 2 can be suspended or rotated by itself, so that the polypropylene microporous biological filler 2 is cleaned; meanwhile, since the polypropylene microporous bio-filler 2 undulates, the mesh 410 of the porous plate 41 at the lower end is exposed, so that the sludge or sewage washed by the polypropylene microporous bio-filler 2 is discharged downward by using the mesh 410 of the porous plate 41.
When the filter is normally used, water to be purified flows into the cylinder body 4 from the upper end of the cylinder body 4, the water to be purified passes through the polypropylene microporous biological filler 2 in a penetrating manner, the polypropylene microporous biological filler 2 is utilized for purification, and the inflow impact strength of water at the upper end of the porous plate 41 is smaller, so that the polypropylene microporous biological filler 2 is not suspended, and the influence on the polypropylene microporous biological filler 2 to filter the water to be purified through the obstruction type filter is avoided.
In actual operation, of course, the mesh 410 of the porous plate 41 has a smaller pore size than the particle size of the polypropylene microporous bio-filler 2 particles; so that the polypropylene microporous biological filler 2 can be positioned at the upper end of the porous plate 41; aiming at the existing general setting the particle size of the polypropylene microporous biological filler 2 particles to be in the range of 3-5 mm. When the particle size of the polypropylene microporous biological filler 2 particles is too large, the capability of intercepting suspended matters of the biological trickling filter bed is reduced; and when the particle size of the polypropylene microporous bio-filler 2 particles is too small, the polypropylene microporous bio-filler 2 is caused to flow to the circulating water culture pond through the mesh 410, the storage bin and the pipeline.
In the illustration of the present application, there are a plurality of flushing ports 3 at the same filling layer 1; the plurality of flushing ports 3 are arranged on the bracket 31 in an array along the axial direction of the cylinder 4 and/or the radial direction of the cylinder 4; the flushing ports 3 are arranged on the support 31 in a linear array in a meter shape or a well shape as in the drawings of the present application; the polypropylene microporous biological filler 2 of the filling layer 1 is jointly washed through the washing ports 3, so that the washing efficiency and the washing effect are improved.
A flow passage is formed in the bracket 31 and is communicated with the flushing port 3, one end of the flow passage is connected with a flushing pipe 32, and the other end of the flushing pipe 32 extends into flushing water to be connected with a flushing pump 33; the flushing water is pumped by the flushing pump 33 and enters the flushing pipe 32, the flushing pipe 32 is used for introducing the flushing water into the flow channel and spraying the flushing water from the flushing port 3, and the flushing water sprayed from the flushing port 3 has enough impact strength due to the pumping pressure of the flushing pump 33, so that the flushing strength can be used for stirring the peripheral polypropylene microporous biological filler 2, and further the polypropylene microporous biological filler 2 is cleaned.
For flushing water, ordinary clean water is selected for adapting to the water body of the culture pond 8 in the later stage.
In the illustration of the application, the lower end of the cylinder 4 comprises a storage bin 43, the storage bin 43 is positioned below the most downstream filling layer 1 along the flowing-out direction of the liquid, and an aerator 5 is arranged in the storage bin 43; the aerator 5 is used for aerating the water body purified above, so that the oxygen content in the water body is increased.
The aerator 5 can be understood as an aeration device, and is generally classified into a surface aeration device, a blast aeration device, an underwater aeration device, a pure oxygen aeration device, a deep well aeration device, and the like.
One end fixedly connected with air pump to the aerator 5 in this application picture, utilize the air pump to supplement the air supply, the aerator 5 carries out the aeration, when using, utilizes the aerator 5 to carry out the aeration to the water of top purification, can realize the microorganism on the filler nitrify oxygen suppliment and improve the oxygen content in the water.
In some cases, of course, a mud valve 6 is provided in the storage compartment 43; the sludge discharge valve 6 is opened to discharge the sludge or sewage from the treatment storage bin 43, such as sewage from the polypropylene microporous biological packing 2.
Of course in some cases, comprising a vertically arranged level gauge 7, the lower end of the level gauge 7 is in communication with a storage compartment 43; as shown in the figure, the liquid level of the filling layer 1 is detected by a liquid level meter 7, and whether the filling layer 1 is blocked or not is judged, for example, after the filling layer is filtered by the polypropylene microporous biological filler 2 for a period of time, the liquid level in the liquid level meter slowly rises from the position A to the position B along with the aging of a biological film and the interception of the filler to sludge in a water body. When the liquid level in the liquid level meter reaches the position B, the water lifting pump and the water outlet valve of the culture pond 8 are closed, the mud discharging valve 6 is opened, the backwash water lifting pump is started, the expansion bracket 31 with the water backwash function can clean the blocked filler, and aged biological films and mud can pass through the porous plate 41 and are discharged through the mud discharging valve 6 until the liquid level returns to the position A. The backwash water lifting pump and the mud valve 6 are closed. And starting a water lifting pump and a water outlet valve of the culture pond 8, and enabling the circulating water system to normally operate. The system can be ensured to stably operate for a long time by circulating and reciprocating in this way.
In some cases, as shown in fig. 1, the biological filtration device filled with the polypropylene microporous biological filler according to the present application can be applied to a circulating water culture system, for example, the circulating water culture system comprises the biological filtration device filled with the polypropylene microporous biological filler, and further comprises a water outlet pipeline 81, wherein one end of the water outlet pipeline 81 is communicated with the storage bin 43, and the other end of the water outlet pipeline extends to the culture pond 8;
a water pump 82 is arranged in the culture pond 8, the water pump 82 pumps water in the culture pond 8 to a water distribution disc 83 through a pipeline, and the water distribution disc 83 is positioned above the most upstream filling layer 1 along the liquid outflow direction.
When the water purifying device is used, water in the culture pond 8 is pumped to the water distribution disc 83 through the water pump 82, and is sprayed into the filling layer 1 from the water distribution disc 83, the filling layer 1 purifies the water, and the purified water is discharged into the culture pond 8 through a water pipeline; realizes the circulation purification of the water body and can be suitable for a circulating water culture system.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (8)
1. A biological filter device filled with polypropylene microporous biological filler, comprising a plurality of filling layers (1), wherein the filling layers (1) are positioned in a filtering area; it is characterized in that the method comprises the steps of,
the filling layer (1) is filled with polypropylene microporous biological filler (2);
the filling layer (1) is provided with a flushing port (3), and the flushing port (3) is used for flushing the polypropylene microporous biological filler (2) in the filling layer (1).
2. The biological filter filled with the polypropylene microporous biological filler according to claim 1, which is characterized by comprising a cylinder body (4) which is vertically arranged, wherein porous plates (41) which are in one-to-one correspondence with the filling layers (1) are arranged in the cylinder body (4), and the filling layers (1) are inner cavities (42) formed by enclosing the inner walls of the cylinder body (4) and the upper end surfaces of the porous plates (41);
the porous plate (41) comprises an array of mesh openings (410).
3. The biofiltration device filled with polypropylene microporous bio-filler according to claim 2, characterized in that the mesh (410) pore size of the porous plate (41) is smaller than the particle size of the polypropylene microporous bio-filler (2) particles.
4. The biofiltration device filled with microporous bio-filler of polypropylene according to claim 2, characterized in that there are a plurality of flushing ports (3) at the same filling layer (1); the plurality of flushing ports (3) are arranged in an array on the support (31) along the axial direction of the cylinder (4) and/or the radial direction of the cylinder (4).
5. The biological filter filled with polypropylene microporous biological filler according to claim 4, wherein the support (31) is internally provided with a runner which is communicated with the flushing port (3), one end of the runner is connected with a flushing pipe (32), and the other end of the flushing pipe (32) extends into flushing water to be connected with a flushing pump (33).
6. The biological filter filled with polypropylene microporous biological filler according to claim 1, characterized in that the lower end of the cylinder (4) comprises a storage bin (43), the storage bin (43) is positioned below the most downstream filling layer (1) along the flowing-out direction of the liquid, and an aerator (5) is arranged in the storage bin (43).
7. The biofiltration device filled with microporous bio-filler of polypropylene according to claim 6, characterized in that a sludge discharge valve (6) is arranged in the storage bin (43).
8. The biological filter filled with polypropylene microporous biological filler according to claim 6, comprising a vertically arranged level gauge (7), the lower end of the level gauge (7) being in communication with a storage bin (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320514119.5U CN219409423U (en) | 2023-03-16 | 2023-03-16 | Biological filter filled with polypropylene microporous biological filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320514119.5U CN219409423U (en) | 2023-03-16 | 2023-03-16 | Biological filter filled with polypropylene microporous biological filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219409423U true CN219409423U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320514119.5U Active CN219409423U (en) | 2023-03-16 | 2023-03-16 | Biological filter filled with polypropylene microporous biological filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219409423U (en) |
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- 2023-03-16 CN CN202320514119.5U patent/CN219409423U/en active Active
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