An accelerated biofilm formation filtration system

Abstract

The utility model discloses a kind of organic matter biofilm formation acceleration filtration systems, it is related to sewage filtration system technical field, above-mentioned organic matter biofilm formation acceleration filtration system includes sludge treatment module and filtration module, sludge treatment module includes sludge tank, sludge pump being communicated with sludge tank by pipeline, separator being communicated with sludge pump by pipeline, separator includes first blow-off and second blow-off, filtration module includes several filter columns, several filter columns all include water inlet and water outlet, several filter columns all are communicated with first blow-off, improve organic matter content in inoculated sludge by separator, quickly supplement efficient microbial flora, shorten biological filter pond commissioning period, strengthen inoculated sludge microbial activity, and then greatly shorten biofilm formation time.

Description

Technical Field

[0001] This utility model relates to the field of wastewater filtration system technology, and more specifically, to a filtration system for accelerating organic matter biofilm formation. Background Technology

[0002] Biological filters are a highly efficient biofilm-based wastewater treatment technology whose core functions are highly dependent on the characteristics of the filter media. By utilizing the functions of different filtration stages, nitrogen removal (nitrification and denitrification) and phosphorus removal (phosphorus adsorption, absorption, and discharge) are separated into different filter units. The process achieves deep wastewater purification through the synergistic effect of the filter media carrier and the microbial community. The core of a biological filter is the filter media, which serves as a habitat for wastewater microorganisms and provides attachment points. The core function of a biological filter depends on the formation and activity of a biofilm on the filter media surface. Natural biofilm formation on clean filter media typically takes 60 days. While activated sludge is generally added, the low organic matter content of activated sludge in wastewater treatment plants leads to a longer biofilm formation time.

[0003] In conclusion, how to shorten the biofilm attachment time is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an accelerated organic matter biofilm filtration system, improve the control of organic matter content in the added sludge, enhance the activity of inoculated sludge microorganisms, and achieve the purpose of shortening biofilm formation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An accelerated organic matter biofilm formation filtration system, comprising:

[0007] A sludge treatment module, comprising a sludge tank, a sludge pump connected to the sludge tank via a pipeline, and a separator connected to the sludge pump via a pipeline, the separator comprising a first discharge port and a second discharge port.

[0008] The filtration module includes several filter columns, each of which has an inlet and an outlet, and each of the filter columns is connected to the first sewage outlet.

[0009] Furthermore, in this invention, the second discharge port of the separator is connected to the sludge tank, and the separator is a hydraulic spiral separator.

[0010] Furthermore, the present invention provides a sludge valve and a detector at the first sewage outlet for detecting the content of organic matter at the first sewage outlet.

[0011] Furthermore, the present invention provides a sludge diversion pipe at the first sewage outlet, and each of the plurality of filter columns is provided with a sludge inlet pipe, which is connected to the sludge diversion pipe.

[0012] Furthermore, each of the aforementioned sludge inlet pipes is equipped with a sludge inlet valve to control the state of the sludge inlet pipe.

[0013] Furthermore, the filtering module further includes:

[0014] A plurality of water outlet tanks, the number of which is the same as the number of filter columns, and each of which is connected to the outlet of the corresponding filter column.

[0015] Furthermore, the present invention includes a plurality of filter columns comprising a primary filter column, a secondary filter column, and a tertiary filter column, which are connected in sequence. The primary filter column and the tertiary filter column are denitrification biological filter columns, and the secondary filter column is an aeration biological filter column.

[0016] Furthermore, the first-stage filter column, the second-stage filter column, and the third-stage filter column are each provided with at least four sampling ports, which are evenly distributed.

[0017] Furthermore, this utility model also includes:

[0018] The backwashing module includes a backwashing pump and a backwashing fan, both of which are connected to the primary filter column, the secondary filter column, and the tertiary filter column via pipelines.

[0019] Furthermore, this utility model also includes:

[0020] A carbon source dosing pump is connected to the primary filter column and the secondary filter column.

[0021] The accelerated organic matter biofilm filtration system provided by this utility model includes a sludge treatment module comprising a sludge tank, a sludge pump connected to the sludge tank via a pipeline, and a separator connected to the sludge pump via a pipeline. In other words, the separator increases the organic matter content in the inoculated sludge, rapidly replenishes highly efficient microbial communities, and shortens the commissioning cycle of the biofilter. The separator includes a first and a second discharge outlet. The filtration module includes several filter columns, each with an inlet and an outlet, all connected to the first discharge outlet. The separator enhances control over the organic matter content in the added sludge, strengthens the activity of the inoculated sludge microorganisms, and lays a solid foundation for the core function of the biofilter in treating organic pollutants. It promotes rapid succession and diversity of the microbial community, facilitating the evolution of the microbial community from primarily heterotrophic bacteria to a more complex and diverse mature community. This system possesses strong adsorption and buffering capacity, significantly shortening the system start-up time and providing a solid biological foundation for its long-term stable operation, efficient pollutant removal, and enhanced resistance to shock loads. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the system of this utility model.

[0024] Figure 1 In the accompanying drawings, the reference numerals include:

[0025] 1. Sludge Treatment Module; 101. Sludge Tank; 102. Sludge Pump; 103. Separator; 104. First Drain; 105. Second Drain; 106. Sludge Valve; 107. Sludge Diversion Pipe; 2. Filtration Module; 201. Primary Filter Column; 202. Secondary Filter Column; 203. Tertiary Filter Column; 204. Sludge Inlet Pipe; 205. Sludge Inlet Valve; 206. Outlet Tank; 3. Backwashing Module; 301. Backwashing Fan; 302. Backwashing Pump; 4. Carbon Source Dosing Pump. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The core of this invention is to provide an accelerated organic matter biofilm filtration system, which improves the control of organic matter content in added sludge, enhances the activity of inoculated sludge microorganisms, and achieves the purpose of shortening biofilm formation.

[0028] Please refer to Figure 1 An accelerated organic biofilm filtration system includes a sludge treatment module 1 and a filtration module 2. The sludge treatment module 1 includes a sludge tank 101, a sludge pump 102 connected to the sludge tank 101 via a pipe, and a separator 103 connected to the sludge pump 102 via a pipe. The separator 103 includes a first discharge port 104 and a second discharge port 105. The filtration module 2 includes a plurality of filter columns, each of which includes an inlet and an outlet, and each of the filter columns is connected to the first discharge port 104.

[0029] It should be noted that in the later stages of operation of this utility model embodiment, organic matter is appropriately added through the sludge tank 101 and separator 103 to ensure that there is a biofilm of the required thickness on the filter media, thereby enhancing the system's resistance to water quality shocks, adapting to water quality changes, improving sewage treatment efficiency, and saving energy and reducing consumption.

[0030] In addition, in this embodiment of the present invention, the concentration of sludge to be inoculated in sludge tank 101 is required to be 10,000 to 15,000 mg / L. When the concentration of MLVSS (organic part of sludge) in the sludge at the first discharge port 104 after passing through separator 103 reaches more than 7,000 mg / L, it enters several filter columns in filter module 2.

[0031] Optionally, in some embodiments, the number of filter columns in the filter module 2 can be selected according to actual use to meet the requirements of different uses.

[0032] Optionally, in some embodiments, the size of the sludge tank 101 can be selected according to the actual needs of use; specifically, there is no limitation on the size of the sludge tank 101.

[0033] Optionally, in some embodiments, a mixing device is provided in the sludge tank 101. Specifically, the mixing device includes a rotating shaft, several blades mounted on the rotating shaft, and a motor for driving the rotating shaft to rotate. By controlling the rotation of several blades, the sludge in the sludge tank 101 can be mixed and stirred to avoid the sludge from clumping together.

[0034] Optionally, in some embodiments, a sampling tube or sampling port 207 is provided at the first sewage outlet 104. That is, the sludge passing through the first sewage outlet 104 can be sampled and tested through the sampling port, thereby facilitating the detection of the sludge state entering the filter column.

[0035] In use, the sludge treatment module 1 includes a sludge tank 101, a sludge pump 102 connected to the sludge tank 101 via a pipe, and a separator 103 connected to the sludge pump 102 via a pipe. That is, the separator 103 increases the organic matter content in the inoculated sludge, quickly replenishes highly efficient microbial communities, and shortens the commissioning cycle of the biological filter. The separator 103 includes a first discharge port 104 and a second discharge port 105. The filtration module 2 includes several filter columns, each with an inlet and an outlet, and all filter columns are connected to the first discharge port. The connection of 104 and the use of separator 103 enhance the control of organic matter content in the added sludge, strengthen the activity of inoculated sludge microorganisms, lay a solid foundation for the core function of the biological filter in treating organic pollutants, promote the rapid succession and diversity of the microbial community, and promote the succession of the microbial community from heterotrophic bacteria to a more complex and diversified mature community with strong adsorption and buffering capacity. This not only significantly shortens the system start-up time, but also lays a solid biological foundation for its long-term stable operation, efficient removal of pollutants, and enhanced resistance to shock loads.

[0036] Please refer to Figure 1 In some embodiments, the second drain outlet 105 of the separator 103 is connected to the sludge tank 101. The separator 103 is a hydraulic spiral separator 103. The concentration of organic matter in the activated sludge (mixed liquor suspended solids) is increased by the hydraulic spiral separator 103 and then used as the inoculation sludge for the biological filter column. The sludge with high organic matter content can accelerate the biofilm formation speed of the filter media in the biological filter column, realizing rapid biofilm formation and microbial community optimization, providing a biological basis for stable purification function, and laying the foundation for the long-term stable operation of the biological filter column.

[0037] Optionally, in some embodiments, the second discharge port 105 is connected to the sludge tank 101. Since the organic matter content of the upper high-efficiency sludge may not meet the required 7000 mg / L after the first centrifugal separation by the hydraulic spiral separator 103, further treatment is required. The second discharge port 105 of the hydraulic spiral separator 103 is connected to the sludge tank 101, and the sludge is discharged into the sludge tank 101 for further centrifugal separation until the inoculated sludge concentration reaches 7000 mg / L.

[0038] Optionally, in some embodiments, due to the different properties of sludge, in order to adjust the function and effect of the hydraulic spiral separator 103, the first discharge port 104 is located at the upper part of the separator 103, and the upper outlet can be a tangential outlet or a top outlet. Control valves are provided at the outlets to flexibly adjust the operation of the hydraulic spiral separator 103.

[0039] Optionally, in some embodiments, in order to change or control the effect of sludge in the hydraulic spiral separator 103, the amount of inoculated sludge in the filter module 2 can be adjusted by adjusting the opening degree of the control valve to control the opening degree of the first discharge port 104.

[0040] Optionally, in some embodiments, the sludge pump 102 may be a sludge lift pump. The sludge concentration and organic matter content from the sewage treatment plant are unstable. The sludge lift pump can adjust the sludge flow rate and sludge velocity entering the hydraulic spiral separator 103, change the hydraulic state of the pre-inoculated sludge in the hydraulic spiral separator 103, increase the organic matter content in the inoculated sludge at the first discharge port 104, accelerate the biofilm formation speed of the filter media, and improve the treatment efficiency of the filter media for sewage.

[0041] Optionally, in some embodiments, a sludge valve 106 and a detector are provided at the first discharge port 104 to detect the organic matter content at the first discharge port 104. The detector can quickly detect the organic matter content, thereby enabling real-time monitoring of the organic matter content entering the filter column.

[0042] Optionally, in some embodiments, the detector may be a carbon and nitrogen analyzer, which can completely convert organic carbon and nitrogen in sludge into gas by burning the sample at high temperature (typically above 1000°C), and then use an infrared or thermal conductivity detector for accurate measurement.

[0043] Please refer to Figure 1 In some embodiments, a sludge diversion pipe 107 is provided at the first sewage outlet 104, and several filter columns are provided with sludge inlet pipes 204, which are all connected to the sludge diversion pipe 107. That is, the sludge passing through the separator 103 is diverted by the sludge diversion pipe 107 so that it enters different filter columns.

[0044] Please refer to Figure 1 In some embodiments, each of the sludge inlet pipes 204 is equipped with a sludge inlet valve 205 to control the state of the sludge inlet pipe 204. The amount of sludge required for each filter column can be controlled individually through the sludge inlet valve 205, thereby meeting the needs of different filter columns.

[0045] Please refer to Figure 1In some embodiments, the filter module 2 further includes a plurality of water outlet tanks 206, the number of which is the same as the number of filter columns, and each of which is connected to the outlet of the corresponding filter column.

[0046] Please refer to Figure 1 In some embodiments, a plurality of filter columns include a primary filter column 201, a secondary filter column 202 and a tertiary filter column 203, which are connected in sequence. The primary filter column 201 and the tertiary filter column 203 are denitrification biological filter columns, and the secondary filter column 202 is an aeration biological filter column. Specifically, it also includes an aeration fan, which maintains the aeration state of the aeration biological filter column.

[0047] Please refer to Figure 1 In some embodiments, the primary filter column 201, the secondary filter column 202 and the tertiary filter column 203 are each provided with at least four sampling ports 207. The four sampling ports 207 are evenly distributed, and the sampling ports 207 can be used to conveniently sample and test the inside of the filter column, and make corresponding adjustments based on the test results.

[0048] Optionally, in some embodiments, both the primary filter column 201 and the tertiary filter column 203 are filled with a pebble layer (support layer), a filter media layer (volcanic rock or ceramsite), a filter plate, a water and air distribution system, and an aerator.

[0049] Please refer to Figure 1 In some embodiments, a backwashing module 3 is also included. The backwashing module 3 includes a backwashing pump 302 and a backwashing fan 301. Both the backwashing pump 302 and the backwashing fan 301 are connected to the primary filter column 201, the secondary filter column 202 and the tertiary filter column 203 through pipelines.

[0050] Optionally, in some embodiments, the sampling port 207 can be welded with pipes and valves on the outer wall of the filter column. Specifically, a faucet can be directly welded on to achieve convenient and rapid sampling.

[0051] In one specific embodiment, the inoculated sludge that meets the requirements after passing through the hydraulic spiral separator 103 flows through the first discharge port 104 to the sludge inlet of the primary filter column 201 (DN denitrifying biological filter). Simultaneously, the backwash fan 301 is activated to ensure the inoculated sludge is in full contact with the filter media, guaranteeing even distribution of the sludge within the filter media. At the same time, the inlet of the primary filter column 201 (DN denitrifying biological filter) is opened. Four sampling ports are evenly distributed within the filter media layer of the denitrifying filter column. After aeration, the changes in nitrate (NO2--N), nitrite (NO2--N), and COD in each sampling port and the effluent are closely monitored. Samples are collected from each layer of filter media, and the biofilm on the filter media surface is examined under a microscope. If the biofilm thickens and its color changes from light to dark, it indicates successful biofilm formation. At this point, the primary filter column 201 (DN denitrifying biological filter) is started, and the influent flow rate is gradually increased while monitoring the effluent quality until the flow rate and quality meet the standards.

[0052] Optionally, in some embodiments, the primary filter column 201 (DN denitrifying biological) and the tertiary filter column 203 (DN denitrifying biological) have essentially the same function, so the same type of sludge is used when cultivating the filter media for biofilm formation. After the biofilm formation in the primary filter column 201 (DN denitrifying biological) is completed, the valve of the sludge inlet pipe 204 entering the primary filter column 201 (DN denitrifying biological) is closed, and the valve of the sludge inlet pipe 204 entering the tertiary filter column 203 (DN denitrifying biological) is opened. At the same time, the backwash blower 301 is turned on to blow the inoculated sludge into full contact with the filter media, ensuring that the sludge is evenly distributed within the filter media. Simultaneously open the control valve of the three-stage filter column 203 (DN denitrifying biological). Four sampling ports are evenly distributed in the filter media layer of the denitrifying filter column. After aeration, closely monitor the changes in nitrate (NO2--N), nitrite (NO2--N), and COD in each sampling port and the effluent. At the same time, collect samples from each layer of filter media and examine the biofilm on the surface of the filter media under a microscope. If the biofilm thickens and the color changes from light to dark, it indicates that biofilm formation is complete. At this time, start the three-stage filter column 203 (DN denitrifying biological) and gradually increase the influent flow rate to monitor the effluent water quality until the flow rate and water quality meet the standards.

[0053] Optionally, in some embodiments, the secondary filter column 202 (aerated (CN) biological) has a different function from the primary and tertiary filter columns 203. After the primary filter column 201 (DN denitrifying biological) and the tertiary filter column 203 (DN denitrifying biological) are inoculated, the sludge in the sludge tank 101 is emptied and replaced with sludge suitable for the secondary filter column 202 (aerated (CN) biological). This sludge is the return sludge from the wastewater treatment plant. After passing through the hydraulic spiral separator 103, the inoculated sludge that meets the requirements passes through the first discharge port 104 to the sludge inlet pipe 204 of the secondary filter column 202 (aerated (CN) biological). At the same time, the aeration blower is turned on to blow the inoculated sludge into full contact with the filter media to ensure... Sludge is evenly distributed within the filter media. Simultaneously, the sludge inlet valve 205 of the secondary filter column 202 (aerated (CN) biological) is opened. Four sampling ports are evenly distributed within the filter media layer of the aerated filter column. After aeration, the changes in nitrate (NH4+-N) and COD in each sampling port and the effluent are closely monitored. During aeration, the dissolved oxygen in the secondary filter column 202 (aerated (CN) biological) is ensured to be no higher than 2 mg / L. Samples of each layer of filter media are collected at the same time, and the biofilm on the surface of the filter media is examined under a microscope. If the biofilm thickens and its color changes from light to dark, it indicates that biofilm formation is complete. At this time, the secondary filter column 202 (aerated (CN) biological) is started, and the influent flow rate is gradually increased while the effluent water quality is monitored until the water quantity and quality meet the standards.

[0054] Optionally, in some embodiments, the three-stage biological filter columns have different functions. Depending on the nature of the biofilm on the filter media surface, the denitrification filter column uses sludge from the anoxic zone of a municipal wastewater treatment plant as pre-inoculation sludge, while the aerated biological filter column uses returned sludge as pre-inoculation sludge. When inoculating each filter column with sludge, the sludge in the sludge tank 101 needs to be replaced according to the function of each filter column.

[0055] Optionally, in some embodiments, a corresponding number of sludge tanks 101 are provided, and the required sludge types are provided in different sludge tanks 101 and connected to the corresponding filter columns, so as to further improve the biofilm formation efficiency.

[0056] Optionally, in some embodiments, the device is equipped with a control device to activate the sludge treatment module 1 or the filtration module 2 respectively, or they can operate in combination.

[0057] Optionally, in some embodiments, the filter column of the filter module 2 is three-stage, and the number of operating stages of the biological filter column can also be adjusted according to the water quality.

[0058] Optionally, in some embodiments, the operation of the biological filter column can be adjusted so that the influent directly enters the inlet of the primary filter column 201 (DN denitrifying biological) and the tertiary filter column 203 (DN denitrifying biological). After passing through the primary filter column 201 (DN denitrifying biological) and the tertiary filter column 203 (DN denitrifying biological), the effluent enters the secondary filter column 202 (aeration (CN) biological) and is discharged through the drain outlet to the final water tank.

[0059] Optionally, in some embodiments, the backwashing system is activated as needed during the operation of the biofilter column, and the backwashing cycle and backwashing intensity are adjusted according to the water quality.

[0060] Please refer to Figure 1 In some embodiments, a carbon source dosing pump 4 is also included. The carbon source dosing pump 4 is connected to the primary filter column 201 (DN denitrifying biological) and the tertiary filter column 203 (DN denitrifying biological). The carbon source dosing pump 4 is connected to the carbon source through a pipeline, thereby replenishing the carbon source of the primary filter column 201 (DN denitrifying biological) and the tertiary filter column 203 (DN denitrifying biological). Since carbon source deficiency often occurs in wastewater, carbon source dosing is used to ensure the normal operation of the filtration module 2.

[0061] In other words, the key point of this utility model is: a device system for accelerating the biofilm formation rate of organic matter in a biological filter, which increases the organic matter content in the inoculated sludge by adding a hydraulic spiral separator, quickly replenishes the efficient microbial community, and shortens the commissioning cycle of the biological filter.

[0062] This invention, through the separator 103, increases the organic matter content in the inoculated sludge, rapidly replenishes the efficient microbial community, improves the organic matter content of the inoculated sludge in the biofilter, enhances the activity of the inoculated sludge microorganisms, and lays a solid foundation for the core function of the biofilter in treating organic pollutants. It promotes the rapid succession and diversity of the microbial community, facilitating the evolution of the microbial community from a predominantly heterotrophic community to a more complex and diverse mature community with strong adsorption and buffering capacity. This not only significantly shortens the system start-up time but also lays a solid biological foundation for its long-term stable operation, efficient removal of pollutants, and enhanced resistance to shock loads. Furthermore, appropriate replenishment of organic matter during later operation ensures a certain thickness of biofilm on the filter media, enhancing the system's resistance to water quality shocks, adapting to water quality changes, improving wastewater treatment efficiency, and saving energy and reducing consumption.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The above provides a detailed description of an accelerated organic matter biofilm formation filtration system provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A system for accelerating organic matter biofilm formation in filtration, characterized in that, include: The sludge treatment module (1) includes a sludge tank (101), a sludge pump (102) connected to the sludge tank (101) via a pipeline, and a separator (103) connected to the sludge pump (102) via a pipeline. The separator (103) includes a first discharge port (104) and a second discharge port (105). The filter module (2) includes several filter columns, each of which includes an inlet and an outlet, and is connected to the first drain outlet (104).

2. The accelerated organic matter biofilm formation filtration system according to claim 1, characterized in that, The second drain outlet (105) of the separator (103) is connected to the sludge tank (101), and the separator (103) is a hydraulic spiral separator (103).

3. The accelerated organic matter biofilm formation filtration system according to claim 1, characterized in that, The first sewage outlet (104) is equipped with a sludge valve (106) and a detector for detecting the content of organic matter at the first sewage outlet (104).

4. The accelerated organic matter biofilm formation filtration system according to claim 3, characterized in that, The first sewage outlet (104) is provided with a sludge diversion pipe (107), and several of the filter columns are provided with sludge inlet pipes (204), which are all connected to the sludge diversion pipe (107).

5. The accelerated organic matter biofilm formation filtration system according to claim 4, characterized in that, Each of the sludge inlet pipes (204) is equipped with a sludge inlet valve (205) to control the status of the sludge inlet pipe (204).

6. The accelerated organic matter biofilm formation filtration system according to claim 1, characterized in that, The filtering module (2) further includes: A plurality of water outlet tanks (206) are provided, the number of which is the same as the number of filter columns, and each of them is connected to the outlet of the corresponding filter column.

7. The accelerated organic matter biofilm formation filtration system according to claim 6, characterized in that, Several filter columns include a primary filter column (201), a secondary filter column (202) and a tertiary filter column (203), which are connected in sequence. The primary filter column (201) and the tertiary filter column (203) are denitrification biological filter columns, and the secondary filter column (202) is an aeration biological filter column.

8. The accelerated organic matter biofilm formation filtration system according to claim 7, characterized in that, The primary filter column (201), the secondary filter column (202) and the tertiary filter column (203) are each provided with at least four sampling ports (207), and the four sampling ports (207) are evenly distributed.

9. The accelerated organic matter biofilm formation filtration system according to any one of claims 7-8, characterized in that, Also includes: The backwashing module (3) includes a backwashing pump (302) and a backwashing fan (301). The backwashing pump (302) and the backwashing fan (301) are connected to the primary filter column (201), the secondary filter column (202) and the tertiary filter column (203) through pipelines.

10. The accelerated organic matter biofilm formation filtration system according to any one of claims 7-8, characterized in that, Also includes: A carbon source dosing pump (4) is connected to the primary filter column (201) and the secondary filter column (202).

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