Assembly type biological membrane aerobic equipment

Abstract

The invention relates to the technical field of sewage treatment, in particular to assembled biological membrane aerobic equipment which comprises a heating aerobic machine body, an electric heating wire is arranged in the heating aerobic machine body, a supporting plate is arranged on the inner wall of the heating aerobic machine body, and a mounting frame is mounted on the heating aerobic machine body through the supporting plate; a filter assembly is mounted on the inner side of the mounting frame, a connecting port is formed in the heating aerobic machine body, a connecting device is arranged on the connecting port, a water segregator is arranged on the upper portion of the connecting device, a device inserting pipe is arranged on the lower portion of the water segregator, and a connecting hole is formed in the side face of the heating aerobic machine body. According to the technology, organic ammonia nitrogen can be efficiently and stably converted, decomposed and converted, and the problem of phosphorus loss needed by breeding is solved. The novel aerobic treater technology is used for treating aquaculture sewage, the use scheme is flexible and changeable, and the method plays an important role in maintaining the availability of phosphorus in a water body and promoting the circulation of the phosphorus.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to an assembled aerobic biofilm device. Background Art

[0002] Phosphorus plays a positive role in aquaculture. Phosphorus is an important component of the skeletons, scales, DNA, and ATP (energy carrier) of crustaceans such as fish, shrimp, and crabs, and fish. A lack of phosphorus can lead to slow growth, skeletal deformities, and a decrease in feed utilization rate. Algal and microbial phosphorus are key nutrients for algal photosynthesis. Appropriate amounts of phosphorus can maintain the primary productivity of water bodies and provide natural food for filter-feeding fish (such as silver carp and bighead carp). Therefore, retaining some phosphorus in aquaculture water bodies is an essential element in aquaculture.

[0003] The aerobic biofilm method is an aerobic biological treatment technology for aquaculture wastewater. Two sets of experiments have proven that when using aerobic biofilms to treat aquaculture wastewater, the phosphorus loss is between 10% and 30%, and when using anaerobic treatment for aquaculture water, the phosphorus loss is about 80%.

[0004] In summary, the comparative data of scientific experiments prove that for the recycling water treatment of aquaculture, the use of the aerobic biofilm treatment technology for phosphorus retention is an irreplaceable technology. The aerobic biofilm is also called the fixed film method. It is an artificial and enhanced manifestation of the water body self-purification process, mainly used to remove dissolved and colloidal organic pollutants in wastewater. The core of the biofilm method is to treat sewage through microorganisms attached and growing on the surface of specific solids. The formed ecosystem, these microorganisms treat the organic matter in the wastewater through adsorption, oxidation, and other effects.

[0005] Based on the above, the inventor of the present invention found the following problems: Generally, wastewater contains a small amount of dissolved oxygen. Anaerobic bacteria work under anaerobic conditions. If there is oxygen in the water, the treatment effect of anaerobic bacteria is very small. The anaerobic treatment method causes a large amount of phosphorus loss in the phosphorus required for aquaculture.

[0006] Some use a combined treatment of anaerobic bacteria and aerobic bacteria. Because the anaerobic treatment plan and the aerobic treatment plan are opposite treatment methods, and anaerobic and aerobic cannot be completed in one environmental process, and the phosphorus loss is more than 95%, causing heavy losses to the recycling aquaculture, and the manufacturing process is complex, the investment is large, the treatment time is too long, and the treatment cost time is greatly increased. It is difficult for general small enterprises to bear the wastewater treatment cost.

[0007] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an assembled aerobic biofilm device is provided, with the expectation of achieving a more practical value purpose. For this reason, we have proposed an assembled aerobic biofilm device to solve the above problems. Summary of the Invention

[0008] The object of the present invention is to provide an assembled aerobic biofilm device to solve the problem that the treatment effect of existing anaerobic bacteria is not thorough enough as mentioned in the above background art.

[0009] To achieve the above object, the present invention provides the following technical solution: an assembled aerobic biofilm device, including a heating aerobic body, an electric heating wire is arranged inside the heating aerobic body, an installation frame is installed inside the heating aerobic body, a filtering component is installed inside the installation frame, a connecting device is arranged on the heating aerobic body, a water distributor is arranged on the upper part of the connecting device, a device insertion pipe is arranged on the lower part of the water distributor, a connecting hole is opened on the side surface of the heating aerobic body, two water outlets are opened at the bottom of the heating aerobic body, and a bubble stone installation part is arranged inside the heating aerobic body on the inner side of the connecting hole.

[0010] Preferably, the device insertion pipe is inserted into the inside of the connecting device, the connecting device is connected to the inside of the heating aerobic body, and the number of the device insertion pipes corresponds to that of the connecting devices.

[0011] Preferably, the filtering component is composed of two layers of filter cloth and a filtering medium, and the filtering medium is located between the two layers of filter cloth.

[0012] Preferably, the filtering medium is made of rattan cotton, the number of the filtering components is three or more groups, and they are arranged vertically. The density and filtering mesh number of the filtering rattan cotton in the three or more groups of filtering components are adjusted according to different water bodies.

[0013] Preferably, the number of the installation frames is three or more, and they are respectively arranged on the inner wall of the heating aerobic body and are arranged in multiple layers. An access hole is opened on the side surface of the installation frame, and the position of the access hole corresponds to that of the filtering component.

[0014] Preferably, the peripheries of the two filter cloths in the same filtering component are fixed to each component on the same installation frame, and the oxygen pipe, the heating wire and the bubble stone are inserted into the heating aerobic body through the access hole, and are respectively tied to the top of the filtering component by plastic cable ties, and finally the access hole is sealed to prevent sewage leakage.

[0015] Preferably, the number of the connecting holes corresponds to that of the filtering components, and they are uniformly arranged on the side surface of the heating aerobic body.

[0016] Preferably, the heating aerobic body adopts the biofilm method for treatment, and the biofilm method is a water aerobic biological treatment technology.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The present invention enables full collection and purification of residual baits in water through multi-stage or hierarchical filtration; for aerobic microbial metabolism, dissolved oxygen is a key factor. Generally speaking, during the treatment process, the dissolved oxygen concentration needs to be maintained above 3 - 2 mg / L to ensure the smooth progress of ammonification oxidation and nitrification, in order to provide an oxygen source for microbial respiration and metabolism. When the dissolved oxygen content fails to reach the dissolved oxygen required for system decomposition, the air stone installed inside the heating aerobic machine is activated to supply oxygen.

[0018] 2. When the natural water temperature of the present invention fails to reach the water temperature of 20 - 30 degrees used in the biofilm aerobic system, the ammonification oxidation decomposition rate drops significantly and phosphorus is excessively lost. At this time, the heating wire is activated, and the water temperature system inside the aerobic machine is adjusted to allow suitable conditions for COD, high total nitrogen content, oxygen content, water temperature, and residence time, so as to efficiently and stably ammonify and decompose organic nitrogen and convert it.

[0019] 3. The present invention decomposes the residual bait waste residue collected inside the heating aerobic machine into ammonia nitrogen molecules, which are then converted into nitrifying bacteria. The nitrifying bacteria convert the ammonia in the wastewater into nitrite. The water containing nitrite is discharged into the film - hanging area of the next process, and through film - hanging conversion of granular objects and other means, nitrate nitrogen is decomposed, and the nitrate - containing substances are decomposed into nutrients that can be absorbed by plants and then recycled into the aquaculture system water body for utilization.

[0020] 4. The water quality purified by the present invention can be used for plant cultivation, irrigation of fruit trees and green belts, etc., so that the products of vegetables and fruit trees can reach green or high - quality standards, enabling full recycling of water; it can also provide recycled water for aquaculture and wastewater treatment for small food processing enterprises and other enterprises, reducing wastewater pollution, improving water utilization efficiency, saving energy and protecting the environment, and reducing pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 is the overall disassembly schematic diagram of an assembled biofilm aerobic device of the present invention; Figure 2 is the internal assembly schematic diagram of an assembled biofilm aerobic device of the present invention; Figure 3 is the plane schematic diagram of the filter frame and filter components of an assembled biofilm aerobic device of the present invention; Figure 4 is the cross - sectional schematic diagram of the filter components of an assembled biofilm aerobic device of the present invention; Figure 5 This is a schematic diagram of the bottom structure of an assembled biofilm aerobic device of the present invention.

[0023] In the figure: 1. Heating aerobic body; 2. Connection hole; 3. Installation frame; 301. Inlet hole; 4. Filter assembly; 5. Filter cloth; 6. Filter medium; 7. Plastic tightening clamp; 8. Air bubble stone installation part; 9. Connection device; 10. Water distributor; 11. Device insertion pipe; 12. Water outlet. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-4The present invention provides an embodiment: an assembled biofilm aerobic equipment, including a heated aerobic body 1, which can be made of geotextile, an electric heating wire is arranged inside the heated aerobic body 1, and the electric heating wire is a heating scheme such as a carbon fiber submersible heating wire, an installation frame 3 is installed inside the heated aerobic body 1, and a filter assembly 4 is installed inside the installation frame 3, a connecting device 9 is arranged on the heated aerobic body 1, a water divider 10 is arranged on the upper part of the connecting device 9, and a device plug-in pipe 11 is arranged at the lower part of the water divider 10, a connecting hole 2 is opened on the side of the heated aerobic body 1, and two groups of water outlets 12 are opened at the bottom of the heated aerobic body 1, the heating wire enters the interior of the heated aerobic body 1 through the connecting hole 2 and is fixed on the filter assembly 4, and an air stone mounting member 8 is arranged inside the heated aerobic body 1 on the inner side of the connecting hole 2, which is convenient for the installation of oxygen pipes, air stones and heating wires. The device plug-in pipe 11 is plugged into the interior of the connecting device 9, and the connecting device 9 is connected to the interior of the heated aerobic body 1. The number of the device plug-in pipe 11 and the connecting device 9 is multiple. The impurities in the water are filtered through the grading bottom frame of the object. The residual bait in the water is fully purified through the graded filtration. The residual bait is placed in the object heated aerobic body 1 in the air stone of the system. The air stone is selected to have a porous structure. These air stones have external oxygen supply pipes to supply oxygen. The air stone will slowly release a large amount of oxygen. When placed in water, the dissolved oxygen content of the water body is increased. Common safety materials include ceramics and activated carbon. If the natural water temperature does not reach the water temperature of 20-30 degrees used in the biofilm aerobic system, the ammoniation oxidation decomposition rate will drop significantly. At this time, the heating wire in the heated aerobic body 1 is started. The biofilm aerobic treatment technology can be set with different usage plans according to different regions, different seasons, different temperatures, and different water volumes. If it is in the high temperature area in the south, the temperature reaches 20-30 degrees all year round, and the heating system can be removed. When the temperature is lower than 20-35 degrees for a short time, an external heating system can be placed in the treatment pool to supplement the water temperature. If the amount of oxygen in the sewage can basically meet the oxygen treatment requirements and the amount of oxygen deficiency is small, it can also be based on the oxygen content of different aquaculture water bodies. In this case, an oxygen tray can be placed in the treatment pool to supplement the oxygen.

[0026] The device plug-in tube 11 is plugged into the interior of the connecting device 9 , and the connecting device 9 is connected to the interior of the heating aerobic machine body 1 . The number of the device plug-in tube 11 corresponds to the number of the connecting devices 9 .

[0027] The filter assembly 4 is composed of two layers of filter cloth 5 and a filter medium 6 , and the filter medium 6 is located between the two layers of filter cloth 5 .

[0028] Among them, the filter medium 6 is made of rattan cotton, the number of filter components 4 is three or more groups, which are arranged up and down respectively, and the density and filter mesh number of the filter rattan cotton in the three or more groups of filter components 4 are adjusted according to different water bodies.

[0029] There are three or more mounting frames 3 , which are respectively arranged on the inner wall of the heating aerobic body 1 and are arranged in multiple layers. An entry hole 301 is opened on the side of the mounting frame 3 , and the position of the entry hole 301 corresponds to the filter assembly 4 .

[0030] Among them, the four sides of the two filter cloths 5 in the same filter component 4 are fixed to the frame with the various components on the same mounting frame 3, the oxygen tube, the heating wire and the bubble stone are inserted into the heating aerobic body 1 through the entry hole 301, and are fastened to the top of the filter component 4 by plastic step-by-step tightening 7, and finally the entry hole 301 is sealed to prevent sewage leakage.

[0031] The number of the connecting holes 2 corresponds to the number of the filter components 4 , and they are evenly arranged on the sides of the heating aerobic body 1 .

[0032] Among them, the heated aerobic body 1 treatment adopts the biofilm method, which is a water aerobic biological treatment technology. It is an artificial and enhanced embodiment of the water body self-purification process, and is mainly used to remove soluble and colloidal organic pollutants in wastewater. The core of the biofilm method is to form an ecosystem through microorganisms that attach and grow on the surface of specific solid objects. These microorganisms treat organic matter in wastewater through adsorption, oxidation and ammonia.

[0033] Working principle: First, the sewage flows into the water separator 10 evenly, and the air stone is connected to an external air pump or industrial oxygen station. Through the above oxygen supply system, the oxygen is pressed onto the air stone, and then the tiny holes on the air stone disperse the oxygen into fine bubbles and release them into the heated aerobic body 1, and the three-stage or multi-stage filter component 4 is graded and filtered from 20 mesh to multiple mesh according to different water qualities, and finally discharged from the water outlet 12. The water that has been filtered and converted enters the next process, and the water that has been aerobic treated is discharged to other processes. It can also be filtered differently according to different water qualities. The scheme uses different filtration meshes to fully collect the residual bait in the water through graded and group filtration. The bubble stones of the residual bait system are placed in the object-heated aerobic body 1 for oxygenation. If the natural water temperature does not reach the water temperature of 20-30 degrees used in the biofilm aerobic system, the ammonia oxidation decomposition rate will drop significantly. At this time, the water temperature system in the heated aerobic body 1 is started to make it suitable for COD and high total nitrogen content, ammonia oxygen content, water temperature, time residence, oxidation ammonia conversion and other processes. The organic ammonia nitrogen can be efficiently and stably converted and decomposed. The above is the entire working principle of the present invention.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An assembled biofilm aerobic device, comprising a heating aerobic body (1), wherein an electric heating wire is arranged inside the heating aerobic body (1), characterized in that: The heating aerobic machine body (1) is provided with a mounting frame (3) inside, a filter assembly (4) is installed inside the mounting frame (3), a connecting device (9) is provided on the heating aerobic machine body (1), a water separator (10) is provided on the upper part of the connecting device (9), a device plug-in pipe (11) is provided on the lower part of the water separator (10), a connecting hole (2) is provided on the side of the heating aerobic machine body (1), two groups of water outlets (12) are provided on the bottom of the heating aerobic machine body (1), and an air stone mounting member (8) is provided inside the heating aerobic machine body (1) and located inside the connecting hole (2).

2. The assembled biofilm aerobic equipment according to claim 1, characterized in that: The device plug-in tube (11) is plugged into the interior of the connecting device (9), and the connecting device (9) is connected to the interior of the heating aerobic machine body (1), and the number of the device plug-in tube (11) and the number of the connecting devices (9) correspond.

3. The assembled biofilm aerobic equipment according to claim 1, characterized in that: The filter assembly (4) is composed of two layers of filter cloth (5) and a filter medium (6), and the filter medium (6) is located between the two layers of filter cloth (5).

4. The assembled biofilm aerobic equipment according to claim 3, characterized in that: The filter medium (6) is made of rattan cotton, the number of the filter components (4) is three or more groups, which are arranged in an upper and lower position respectively, and the density and filter mesh number of the filter rattan cotton in the three or more groups of filter components (4) are adjusted according to different schemes according to different water bodies.

5. The assembled biofilm aerobic equipment according to claim 1, characterized in that: The number of the mounting frames (3) is three or more, and they are respectively arranged on the inner wall of the heating aerobic machine body (1) and are arranged in multiple layers. An inlet hole (301) is opened on the side of the mounting frame (3), and the position of the inlet hole (301) corresponds to the filter assembly (4).

6. The assembled biofilm aerobic equipment according to claim 4, characterized in that: The four sides of the two filter cloths (5) in the same filter assembly (4) are fixed to the frame with the components on the same mounting frame (3); the oxygen tube, the heating wire and the bubble stone are inserted into the heating aerobic body (1) through the entry hole (301) and are respectively fastened to the top of the filter assembly (4) using plastic step-by-step tighteners (7); and finally the entry hole (301) is sealed to prevent sewage leakage.

7. The assembled biofilm aerobic equipment according to claim 1, characterized in that: The number of the connection holes (2) corresponds to that of the filter assembly (4), and they are evenly arranged on the sides of the heating aerobic machine body (1).

8. The assembled biofilm aerobic equipment according to claim 1, characterized in that: The heated aerobic body (1) treatment adopts a biofilm method, which is a water aerobic biological treatment technology.

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