Fungus fiber matrix purifier

Abstract

The invention provides a bacterial fiber matrix purifier, which integrates a bag type fiber biological filtration matrix and a synchronous nitrification and denitrification mechanism, and has triple advantages of simple structure, efficient decontamination and resource circulation; a modified plastic fiber cloth bag is adopted to synchronously complete physical filtration, biological reaction and microbial film treatment, a vertical flow precipitator, a microfilter, a protein separator and a biological fluidized bed are completely replaced, and the equipment investment is reduced; through the back flushing design of the bottom of the central water inlet pipe, sewage is distributed in a fluidization mode in the bag, macromolecular organic matter is decomposed into biological floccules capable of being eaten by fishes in combination with bacterium-carbon coupling targeted control, the recycling rate of residual feed and excrement is high, meanwhile, high-energy-consumption equipment is omitted, and energy consumption of the system is reduced; the system not only can independently operate in land-based industrial aquaculture to realize a zero-emission carbon sink fishery mode, but also can be used as a front-end pretreatment unit of an existing RAS or an advanced treatment module of a sewage treatment plant, so that the load of a subsequent ecological pool is greatly reduced, and the standard recycling of aquaculture tail water is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture wastewater treatment, and in particular to a bacterial fiber matrix purifier. Background Art

[0002] As the aquaculture industry transitions toward intensification and sustainability, recirculating aquaculture systems (RAS) have become a core focus of industrial upgrading due to their water-saving and environmentally friendly characteristics. Traditional RAS systems rely on multi-stage cascade equipment: a vertical flow precipitator or microfilter for physical filtration at the front end, a high-energy protein skimmer in the middle to remove dissolved organic matter, and a biological fluidized bed, fixed bed, and other equipment at the back end to achieve nitrification and denitrification. While this model can maintain water quality, it has significant drawbacks:

[0003] First, equipment redundancy leads to high investment (e.g., biological fluidized beds require additional aeration, and energy consumption accounts for more than 30% of the system's total power consumption);

[0004] Second, the process is complex, with physical filtration and biological treatment operating separately. Organic waste such as leftover bait and feces needs to be transported multiple times, increasing operation and maintenance costs.

[0005] Third, the resource utilization rate is low, and the remaining bait and feces are only discharged as waste, and resource utilization is not achieved. In addition, the ammonia nitrogen degradation rate is generally lower than 70%, and the phosphorus removal rate is less than 60%. Frequent water changes or the addition of chemical agents are required, which increases the environmental burden.

[0006] While recent technological attempts have been made to optimize water quality (such as adding microalgae or optimizing bacterial communities), these have not broken through the confines of equipment stacking. For example, some systems employ a "mobile bio-tank + sterilization unit" combination, which improves nitrogen removal efficiency but uncontrollable carbon source addition, which can easily lead to the accumulation of volatile fatty acids and inhibit bacterial activity. Other solutions, while adding online monitoring modules to control water quality, lack the integration of in-situ fermentation of organic pollutants, thus failing to reduce overall system complexity.

[0007] The above problems restrict the large-scale application of RAS systems, and there is an urgent need for an innovative solution that can simultaneously simplify processes, reduce energy consumption, and realize waste resource conversion. Summary of the Invention

[0008] The purpose of the present invention is to provide a bacterial fiber matrix purifier to solve the problems existing in the above-mentioned prior art.

[0009] To achieve the above object, the present invention provides the following solutions:

[0010] The present invention provides a bacterial fiber matrix purifier, comprising:

[0011] A nitrification tank, wherein the nitrification tank is a sealed structure with an open top;

[0012] A bag-type fiber biological filtration matrix component, wherein the bag-type fiber biological filtration matrix component is arranged above the nitrification tank;

[0013] An external water inlet assembly, the external water inlet assembly being in communication with the bag-type fiber biological filtration matrix assembly;

[0014] An internal circulation component is communicated with the nitrification tank and the bag-type fiber biological filtration matrix component.

[0015] Preferably, the bag-type fiber biological filtration matrix assembly includes a sewage inlet pipe, the water inlet end of the sewage inlet pipe is connected to the external water inlet assembly, and the water outlet end is connected to the distribution pipe, and the distribution pipe is connected to the central water inlet pipe. The side wall of the central water inlet pipe is provided with a slow-release carbon source and microbial filler, and a cloth bag is coaxially provided on the outside of the central water inlet pipe, and the bottom of the cloth bag is connected to the sewage pipe.

[0016] Preferably, the central water inlet pipes are distributed in a matrix above the nitrification tank.

[0017] Preferably, the central water inlet pipe and the distribution pipe are connected via a flexible joint.

[0018] Preferably, the cloth bag is a modified plastic fiber cloth bag.

[0019] Preferably, the bottom of the cloth bag is connected to the sewage pipe through a sewage discharge interface.

[0020] Preferably, a vertical cylinder is provided on the outside of the cloth bag, and a water-permeable hole is opened on the side wall of the vertical cylinder.

[0021] Preferably, the external water inlet component includes a low-level tank sewage pump, and the low-level tank sewage pump is connected to the sewage inlet pipe through a sewage delivery pipe.

[0022] Preferably, the internal circulation component includes a self-circulating water purification pump, which is arranged at the bottom of the nitrification tank and connected to the distribution pipe through a water purification pipe.

[0023] Preferably, a first water permeable pipe and a second water permeable pipe are stacked at the bottom of the nitrification tank, the first water permeable pipe and the second water permeable pipe are arranged crosswise, pebbles are built into the first water permeable pipe, and a carbon source is built into the second water permeable pipe.

[0024] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0025] The present invention provides a bacterial fiber matrix purifier that integrates a bag-type fiber biological filtration matrix with a simultaneous nitrification and denitrification mechanism, achieving the triple advantages of a streamlined structure, efficient decontamination, and resource recycling. Specifically:

[0026] Replace multiple redundant devices with a single device: Modified plastic fiber bags are used to simultaneously complete physical filtration, biological reaction and microbial membrane treatment, completely replacing vertical flow settlers, microfiltration machines, protein skimmers and biological fluidized beds, reducing equipment investment by more than 40%;

[0027] Energy and resource conservation: The backwash design at the bottom of the central water inlet pipe fluidizes and distributes waste within the bag. Combined with targeted control of bacterial-carbon coupling, this decomposes macromolecular organic matter into bioflocs that can be eaten by fish. The resource utilization rate of residual bait and feces exceeds 90%, while eliminating high-energy-consuming equipment and reducing system energy consumption by 50%.

[0028] Breakthrough in water purification efficiency: Relying on the synergistic effect of the microbial film enriched in the bag and the slow-release carbon source, the ammonia nitrogen removal rate is >80%, the phosphorus removal rate is 90%, the turbidity purification rate is 98.6%, the circulating water utilization rate is increased to 97%, and CO Removal rate>98%, significantly better than traditional RAS system;

[0029] Strong application compatibility: It can operate independently in land-based factory aquaculture to achieve a "zero-emission" carbon sink fishery model; it can also be used as a front-end pretreatment unit of an existing RAS or a deep treatment module of a sewage treatment plant, significantly reducing the subsequent ecological pond load and promoting the qualified reuse of aquaculture tail water. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of the structure of the bacterial fiber matrix purifier provided by the present invention;

[0032] Figure 2 A front cross-sectional view of the bacterial fiber matrix purifier provided by the present invention;

[0033] Figure 3 A side cross-sectional view of the bacterial fiber matrix purifier provided by the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the bag-type fiber biological filtration matrix component in the bacterial fiber matrix purifier provided by the present invention. DETAILED DESCRIPTION

[0035] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0036] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] The purpose of the present invention is to provide a bacterial fiber matrix purifier to solve the problems existing in the prior art.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Example 1:

[0041] This embodiment provides a bacterial fiber matrix purifier, such as Figure 1-4 Shown, including:

[0042] Nitrification tank 1 is a sealed structure with an open top. It is the main place for sewage treatment. It is connected to the external sewage and then discharges the clean water after treatment.

[0043] The bag-type fiber biological filtration matrix assembly 2 is arranged above the nitrification tank 1 and can replace traditional coarse filtration equipment such as vertical flow sedimentation tanks and microfiltration machines, as well as high-energy consumption equipment such as protein separators and biological fluidized beds, to complete the filtration, purification, microbial membrane treatment and other process flows, reduce energy consumption, simplify the process flow, and achieve zero discharge of circulating water;

[0044] The external water inlet component 3 is in communication with the bag-type fiber biological filtration matrix component 2 for water intake;

[0045] The internal circulation component 4 is connected to the nitrification tank 1 and the bag-type fiber biological filtration matrix component 2 and is used for circulating treatment of purified water.

[0046] As an embodiment, the bag-type fiber biological filtration matrix assembly 2 includes a sewage inlet pipe 21, the water inlet end of the sewage inlet pipe 21 is connected to the external water inlet assembly 3, and the water outlet end thereof is connected to the distribution pipe 22, and the distribution pipe 22 is connected to the central water inlet pipe 23. The side wall of the central water inlet pipe 23 is provided with a slow-release carbon source 24 and a microbial filler 25, and a cloth bag 26 is coaxially provided on the outside of the central water inlet pipe 23, and the bottom of the cloth bag 26 is connected to the sewage pipe 27.

[0047] Sewage enters from the top, passes through the central water inlet pipe 23, and then backwashes out from the bottom, causing the sewage in the water to form a fluidized state and be dispersed to the four walls of the bag to the maximum extent, which is conducive to the decomposition reaction; the slow-release carbon source 24 quantitatively supplements the carbon source (N / D-15), and the microbial bacteria filler 25 is configured with EM strains, which is conducive to fermentation and the formation of a stable biofilm, thereby improving the efficiency of ammonia nitrogen degradation and phosphorus removal; the nitrogen, phosphorus and algae cycle is synergistically applied with water purification. BFT promotes heterotrophic bacteria to convert ammonia nitrogen into microbial protein by regulating the carbon-nitrogen ratio (C / N), and the configuration of microalgae (diatoms, Chlorella, Schizochytrium, etc.) to control light promotes the growth of beneficial algae, forming flocs and algae that can be eaten by fish, making the aquaculture water body a microecologically healthy water body.

[0048] Furthermore, the central water inlet pipes 23 are distributed in a matrix above the nitrification tank 1, which can effectively improve the water purification efficiency.

[0049] Furthermore, the central water inlet pipe 23 and the distribution pipe 22 are connected via a flexible joint 28, which facilitates connection and deployment.

[0050] Furthermore, the bag 26 adopts a modified plastic fiber bag to replace other physical filtering equipment, so that the waste can ferment, bioreact and filter and purify in the bag. The organic matter in the bag is enriched and fermented, and through enzymatic catalysis, bacterial carbon coupling, and targeted control of organic carbon sources, large molecular organic matter (such as protein and fat) is decomposed to generate easily degradable small molecular substances, and form biological flocs (which can be eaten by fish), turning waste such as leftover bait and feces into treasure, realizing comprehensive resource utilization; the modified plastic fiber bag serves as both a filter and a microbial carrier to realize simultaneous nitrification and denitrification reaction (SND), effectively remove nitrogen and phosphorus, and maintain water purification and safety.

[0051] Furthermore, the bottom of the cloth bag 26 is connected to the sewage pipe 27 through the sewage discharge interface 29, thereby achieving the discharge of filtered impurities.

[0052] Furthermore, a vertical cylinder 210 is provided outside the bag 26 , and a water-permeable hole 211 is opened on the side wall of the vertical cylinder 210 to allow the filtered clean water to flow out and enter the nitrification tank 1 .

[0053] As an embodiment, the external water inlet component 3 includes a low-level tank sewage pump 31, and the low-level tank sewage pump 31 is connected to the sewage inlet pipe 21 through a sewage delivery pipe 32, thereby realizing the delivery of external sewage.

[0054] As an embodiment, the internal circulation component 4 includes a self-circulating clean water pump 41, which is arranged at the bottom of the nitrification tank 1 and is connected to the distribution pipe 22 through the clean water pipe 41, so that the treated clean water is circulated again to the bag-type fiber biological filtration matrix component 2 for circulation treatment.

[0055] As an embodiment, a first water permeable pipe 5 and a second water permeable pipe 6 are stacked at the bottom of the nitrification tank 1. The first water permeable pipe 5 and the second water permeable pipe 6 are arranged crosswise. The first water permeable pipe 5 has pebbles built in, and the second water permeable pipe 6 has a carbon source built in.

[0056] The microbial fiber matrix purifier provided by the present invention can also be configured with an online water quality monitoring system and AI fusion technology to monitor and regulate water quality (temperature, turbidity, salinity, CO, ORP, ammonia nitrogen, etc.) and bacterial and algal conditions, optimize fermentation conditions and bacterial metabolic pathways; and visually monitor the breeding status (density, fish body characteristics, etc.).

[0057] The present invention provides a bacterial fiber matrix purifier that can be used for land-based factory circulating water aquaculture, saving water treatment equipment investment, reducing operating costs, saving energy and reducing consumption, effectively converting leftover bait and feces into resources for comprehensive utilization, and realizing a carbon sink fishery aquaculture model.

[0058] The present invention provides a bacterial fiber matrix purifier that optimizes water quality, with an ammonia nitrogen removal rate of >80%, a phosphorus removal rate of 90%, a carbon dioxide removal rate of >98%, a turbidity of 98.6%, and a circulating water utilization rate of more than 97%.

[0059] The bacterial fiber matrix purifier provided by the present invention can also be used in other sewage treatment systems, saving investment, reducing floor space and lowering operating costs, and recycling water or achieving discharge standards.

[0060] The present invention provides a bacterial fiber matrix purifier that can be combined with the existing RAS system as a front-end treatment to decompose organic matter such as leftover bait and feces, thereby reducing the burden of subsequent processing; combined with the RAS system's mobile biological pool, sterilization, oxygen supply and constant temperature and other back-end treatment systems, it ensures that ammonia nitrogen is converted into harmless nitrates, avoids fish poisoning, and ensures safe and stable water quality.

[0061] The present invention provides a fungus fiber matrix purifier, which is used in combination with two dams and three pools in aquaculture tail water treatment. It can be used as a pre-treatment system to reduce the burden of subsequent treatment. It only needs to configure an ecological pool to achieve standard discharge or return water utilization.

[0062] The bacterial fiber matrix purifier provided by the present invention can also be used as a subsequent deep treatment system for other organic wastewater treatment, converting organic proteins in organic waste into functional biological proteins, realizing comprehensive resource utilization and standard discharge of tail water.

[0063] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] It should be noted that the components mentioned in the above embodiments are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0065] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A bacterial fiber matrix purifier, characterized by: include: A nitrification tank, wherein the nitrification tank is a sealed structure with an open top; A bag-type fiber biological filtration matrix component, wherein the bag-type fiber biological filtration matrix component is arranged above the nitrification tank; An external water inlet assembly, the external water inlet assembly being in communication with the bag-type fiber biological filtration matrix assembly; An internal circulation component is communicated with the nitrification tank and the bag-type fiber biological filtration matrix component.

2. The bacterial fiber matrix purifier according to claim 1, characterized in that: The bag-type fiber biological filtration matrix assembly includes a sewage inlet pipe, the water inlet end of the sewage inlet pipe is connected to the external water inlet assembly, and the water outlet end is connected to the distribution pipe, and the distribution pipe is connected to the central water inlet pipe. The side wall of the central water inlet pipe is provided with a slow-release carbon source and microbial filler, and a cloth bag is coaxially provided on the outside of the central water inlet pipe, and the bottom of the cloth bag is connected to the sewage pipe.

3. The bacterial fiber matrix purifier according to claim 2, characterized in that: The central water inlet pipes are distributed above the nitrification tank in a matrix.

4. The bacterial fiber matrix purifier according to claim 2, characterized in that: The central water inlet pipe and the distribution pipe are connected via a flexible joint.

5. The bacterial fiber matrix purifier according to claim 2, characterized in that: The cloth bag is a modified plastic fiber cloth bag.

6. The bacterial fiber matrix purifier according to claim 2, characterized in that: The bottom of the cloth bag is connected to the sewage pipe through a sewage discharge interface.

7. The bacterial fiber matrix purifier according to claim 2, characterized in that: A vertical cylinder is arranged on the outside of the cloth bag, and a water-permeable hole is opened on the side wall of the vertical cylinder.

8. The bacterial fiber matrix purifier according to claim 2, characterized in that: The external water inlet component includes a low-level pool sewage pump, and the low-level pool sewage pump is connected to the sewage inlet pipe through a sewage delivery pipe.

9. The bacterial fiber matrix purifier according to claim 2, characterized in that: The internal circulation component includes a self-circulating water purification pump, which is arranged at the bottom of the nitrification tank and connected to the distribution pipe through a water purification pipe.

10. The bacterial fiber matrix purifier according to any one of claims 1 to 9, characterized in that: A first water-permeable pipe and a second water-permeable pipe are stacked at the bottom of the nitrification tank. The first water-permeable pipe and the second water-permeable pipe are arranged crosswise. Pebbles are built into the first water-permeable pipe, and a carbon source is built into the second water-permeable pipe.

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