Purification treatment device and process for treating river water pollution

Abstract

The present invention discloses a purification treatment device and process for treating river water pollution, which relates to the technical field of river water pollution treatment. The treatment device includes a purifier frame; a plurality of rows of biological filler modules are arranged in an array in the purifier frame, each row of biological filler modules includes filler support rods fixed in the purifier frame at equal intervals, and a plurality of groups of filler bodies are evenly arranged along the axial direction of each group of filler support rods; diversion modules for guiding water flow are symmetrically arranged on both sides of the purifier frame, and each group of diversion modules corresponds one-to-one to each row of biological filler modules; the present invention can guide water flow through the diversion modules, guiding water to flow along the gaps between each row of biological filler modules, thereby effectively preventing water from flowing against the biological filler modules and preventing the filler bodies from being flushed out of the filler support rods. There is no need to manually remove the purifier directly from the river channel, and when the flow rate in the river decreases, the diversion module can automatically reset.

Description

Technical Field

[0001] The present invention relates to the technical field of river water pollution control, and in particular to a purification treatment device and process for controlling river water pollution. Background Art

[0002] River water pollution directly threatens the ecological environment and human health, necessitating systematic governance to ensure sustainable development. This governance aims to: protect the ecology by restoring aquatic biodiversity and maintaining ecological balance; ensure safety by providing clean water and reducing public health risks; and promote development by promoting a green economy and achieving a win-win situation for both the ecological and economic sectors.

[0003] Purifier technology is essential for river water pollution control. It's a water purification method developed from sewage treatment processes. Microorganisms attach and grow on the surface of suspended media, forming a thick biofilm. Aerated media floats with the current, bringing the attached microbial communities into full contact with pollutants and oxygen in the water. Pollutants enter the biofilm through adsorption and diffusion, where they are degraded by the microorganisms.

[0004] In actual application, since the biological filler of the purifier needs to be immersed in the river channel, the water flow in the river channel will accelerate due to seasonal changes or rainfall. Therefore, under the impact of the water flow, the biological filler can be easily washed away from the purifier. In the current existing technology, before the rainy season arrives, the purifier is usually removed directly from the river channel manually, which is a relatively cumbersome operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a purification treatment device and process for treating river water pollution, and to solve the following technical problems:

[0006] When the water flow in the river speeds up, the biological fillers attached to the purifier can be easily washed away.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A purification treatment device for treating river water pollution comprises a purifier frame;

[0009] The purifier frame is provided with a plurality of rows of biological filler modules in an array, each row of biological filler modules includes filler support rods fixed in the purifier frame at equal intervals, and each group of filler support rods is provided with a plurality of groups of filler bodies evenly arranged along the axial direction thereof;

[0010] The two sides of the purifier frame are symmetrically provided with flow guide modules for guiding the water flow, and each group of flow guide modules corresponds to each column of biological filler modules.

[0011] Preferably, each group of the guide modules includes a first guide plate and a second guide plate rotatably arranged on the purifier frame, and the first guide plate and the second guide plate are symmetrically arranged with the biological filler module as the center. The guide module also includes a driving part, which is used to drive the first guide plate and the second guide plate to rotate toward each other or away from each other.

[0012] Preferably, the first guide plate and the second guide plate are respectively rotatably arranged on the purifier frame through a support shaft, and the top of the support shaft extends above the purifier frame and is fixedly connected to the gear;

[0013] The driving part includes a U-shaped frame arranged between two sets of gears, and racks meshing with the gears are symmetrically fixed on the U-shaped frame. The U-shaped frame is connected to a pulling mechanism that drives its reciprocating motion.

[0014] Preferably, an inclined guide surface is provided at the end portions of the first guide plate and the second guide plate that are close to each other.

[0015] Preferably, both ends of the filler support rod are respectively fixed to a first mounting plate and a second mounting plate fixedly arranged on the purifier frame.

[0016] Preferably, a float bag is provided on the purifier frame, and the float bag is fixed to the first mounting plate.

[0017] Preferably, the pulling mechanism includes winding wheels symmetrically arranged on both sides of the float bag, the side of the winding wheel away from the float bag is fixed to the runner, a plurality of groups of blades are fixedly arranged in a circumferential array on the runner, and a pull rope is symmetrically fixed on the winding wheel;

[0018] Among them, the U-shaped frame sliding sleeve is arranged on the positioning rod, the positioning rod is fixed to the positioning plate fixed on the first mounting plate, and a telescopic spring is provided on the positioning rod, one end of the telescopic spring is fixed to the U-shaped frame, and the other end is fixed to the positioning plate. A limiting rod is fixed on the end of the U-shaped frame that is close to the float bag, and the other end of the limiting rod is fixed to the baffle, which is fixed to the adjustment plate, and the other end of the pull rope is fixed to the adjustment plate.

[0019] Preferably, the bottom of the purifier frame is fixed to the riverbed by an anchoring device.

[0020] Preferably, an aeration module is provided at the bottom of the purifier.

[0021] A purification process for treating river water pollution, applied to the above-mentioned purification device for treating river water pollution, comprises the following steps:

[0022] Place the purifier in the river;

[0023] When the water flow velocity in the river channel does not exceed the predetermined value, the water can flow toward each row of biological filler modules;

[0024] When the water flow velocity in the river exceeds the preset value, the diversion module guides the water flow and guides the water to flow along the gaps between each row of biological filler modules;

[0025] When the flow velocity in the river decreases again, the diversion module can automatically reset.

[0026] Beneficial effects of the present invention:

[0027] (1) In the present invention, when the water flow velocity in the river channel does not exceed the predetermined value, the water flow can flow toward each row of biological filler modules, so that the water in the river channel can directly contact the filler body of each row of biological filler modules, effectively removing organic pollutants, ammonia nitrogen, total phosphorus and other pollutants in the water body, and improving the water quality. Correspondingly, since there is an installation gap between two adjacent groups of biological filler modules, when the water flow velocity in the river channel exceeds the predetermined value, the present invention can guide the water flow through the diversion module to guide the water to flow along the gap between each row of biological filler modules, thereby effectively avoiding the water flow from the biological filler module and avoiding the filler body from being flushed out of the filler support rod. The stability of the filler body is higher, so even when the rainy season comes, there is no need to manually remove the purifier directly from the river channel, which reduces labor costs. At the same time, when the flow velocity in the river decreases, the diversion module can automatically reset, so that the water in the river channel can fully contact the filler body for water purification.

[0028] (2) In the present invention, when the water flow velocity in the river channel does not exceed a predetermined value, the first guide plate and the second guide plate are parallel to each other, thereby forming a diversion channel between the first guide plate and the second guide plate, so that water can flow toward the biological filler module. When the water flow velocity in the river channel exceeds a predetermined value, the first guide plate and the second guide plate are driven toward each other and contacted by the driving unit, thereby closing the diversion channel. Since the first guide plate and the second guide plate are inclined in this state, the water flow first impacts the inclined surface of the guide plate for buffering, thereby achieving the effect of reducing the speed of the water flow, and then the water flow can flow along the gap of the biological filler module to avoid directly scouring the filler body.

[0029] (3) When the purifier of the present invention floats in the river, part of the blades of the impeller can be immersed in water. Therefore, when the water flow in the river accelerates, it can impact the blades, and the blades can synchronously drive the impeller to rotate, and the impeller then drives the winding wheel to rotate. During the rotation of the winding wheel, the adjustment plate is driven by the pull rope to move toward the float bag. The adjustment plate drives the U-shaped frame to move synchronously through the baffle and the limit rod to achieve the purpose of driving the first guide plate and the second guide plate to rotate toward each other. During this process, the U-shaped frame slides on the positioning rod and stretches the telescopic spring to generate elastic force. Therefore, when the water flow in the river accelerates, the first guide plate and the second guide plate can be automatically adjusted to rotate toward each other under the action of the water flow impact. When the water flow rate slows down again, the telescopic spring can drive the U-shaped frame and each component to reset. No manual adjustment is required, and the degree of automation is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the application structure of a purification treatment device for treating river water pollution according to the present invention;

[0032] Figure 2 This is a schematic structural diagram of a purification treatment device for treating river water pollution according to the present invention;

[0033] Figure 3 This is a schematic diagram of a top view and process of a purification treatment device for treating river water pollution according to the present invention;

[0034] Figure 4 This is a schematic structural diagram of a purification treatment device for treating river water pollution according to the present invention when the guide plates are parallel;

[0035] Figure 5 This is a schematic structural diagram of a purification treatment device for treating river water pollution according to the present invention when guide plates rotate towards each other;

[0036] Figure 6 This is a schematic structural diagram of an inclined guide surface in a purification treatment device for treating river water pollution according to the present invention;

[0037] Figure 7 This is a schematic structural diagram of a rotor in a purification treatment device for treating river water pollution according to the present invention;

[0038] Figure 8 It is a structural schematic diagram of gears in a purification treatment device for treating river water pollution according to the present invention.

[0039] In the figure: 1. Purifier frame; 2. Float; 3. Rotor; 4. Guide module; 5. Positioning plate; 101. Second mounting plate; 102. First mounting plate; 103. Filling support rod; 104. Filling body; 201. Photovoltaic power generation module; 202. Aeration module; 301. Blade; 302. Winding wheel; 303. Pull rope; 304. Adjustment plate; 305. Baffle; 306. Limit rod; 307. U-shaped frame; 308. Rack; 401. First guide plate; 402. Second guide plate; 403. Inclined guide surface; 404. Support shaft; 405. Gear; 501. Positioning rod; 502. Telescopic spring. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0041] Example 1

[0042] See also Figure 1-Figure 3 As shown, the present invention is a purification treatment device for treating river water pollution, including a purifier frame 1; specifically, the purifier frame 1 of this embodiment is a rectangular frame, which is composed of a combination of several groups of angle steels, each of which can be fixed by bolts or welding, wherein the size of the purifier frame 1 can be set accordingly based on the width and depth of the river to be treated, which is not limited in this embodiment.

[0043] Several rows of biological filler modules are arranged in an array in the purifier frame 1, and each row of biological filler modules includes filler support rods 103 fixed at equal intervals in the purifier frame 1, and several groups of filler bodies 104 are evenly arranged along the axial direction of each group of filler support rods 103; specifically, the filler bodies 104 of this embodiment are one or more of polyurethane, polyamide, polyethylene, polypropylene, polyolefins, aldehyde-treated fiber or polyester yarn; this embodiment is not limited to this, and the filler bodies 104 provide a suitable environment and carrier for the growth, reproduction and rapid biofilm formation of microorganisms.

[0044] In addition, ceramic fillers can also be used as biological fillers, which have broad application prospects in river purification. They can fix microorganisms on the surface of the filler to form a stable biofilm. Through the metabolic activities of microorganisms, they can effectively remove organic pollutants, ammonia nitrogen, total phosphorus and other pollutants in the water, thereby improving water quality.

[0045] As a further solution of this embodiment, the two sides of the purifier frame 1 are symmetrically provided with diversion modules 4 for guiding the water flow, and each group of diversion modules 4 corresponds to each row of biological filler modules. Specifically, when the flow velocity of the water in the river does not exceed the predetermined value, the water flow can flow towards each row of biological filler modules (see Figure 4 ), so that the water in the river can directly contact the filler body 104 of each row of biological filler modules, effectively removing organic pollutants, ammonia nitrogen, total phosphorus and other pollutants in the water body, and improving water quality. Accordingly, due to the installation gap between two adjacent groups of biological filler modules, when the flow rate of the water in the river exceeds the predetermined value, this embodiment can guide the water flow through the diversion module 4 (see Figure 5 ), guiding the water to flow along the gaps between each row of biological filler modules, thereby effectively preventing the water from flowing against the biological filler modules and preventing the filler body 104 from being flushed out of the filler support rods 103. The filler body 104 has higher stability, so even in the rainy season, there is no need to manually remove the purifier directly from the river channel, which reduces labor costs. At the same time, when the flow rate in the river decreases, the diversion module 4 can automatically reset, so that the water in the river channel can fully contact the filler body 104 for water purification.

[0046] Example 2

[0047] Based on Example 1, please refer to Figure 3-Figure 6 Each group of guide modules 4 includes a first guide plate 401 and a second guide plate 402 rotatably arranged on the purifier frame 1, and the first guide plate 401 and the second guide plate 402 are symmetrically arranged with the biological filler module as the center. The guide module 4 also includes a driving unit, which is used to drive the first guide plate 401 and the second guide plate 402 to rotate toward each other or in opposite directions. It can be explained that when the water flow velocity in the river channel does not exceed the predetermined value, the first guide plate 401 and the second guide plate 402 are parallel to each other, thereby forming a guide channel between the first guide plate 401 and the second guide plate 402, so that water can flow towards the biological filler module (see Figure 4 ), when the water flow velocity in the river channel exceeds a predetermined value, the driving unit drives the first guide plate 401 and the second guide plate 402 to approach and contact each other, thereby closing the diversion channel. Since the first guide plate 401 and the second guide plate 402 are in an inclined state in this state, the water flow first impacts the inclined surface of the guide plate for buffering, so as to achieve the effect of reducing the speed of the water flow, and then the water flow can flow along the gap of the biological filler module to avoid directly scouring the filler body 104.

[0048] Accordingly, since the flow guide modules 4 are symmetrically arranged on both sides of the purifier frame 1, the water flow can be guided and buffered regardless of the flow direction of the water flow, and the scope of application is wider.

[0049] In this embodiment, please refer to Figure 6-Figure 8 The first guide plate 401 and the second guide plate 402 are respectively rotatably arranged on the purifier frame 1 through the support shaft 404. The top of the support shaft 404 extends to the top of the purifier frame 1 and is fixedly connected to the gear 405. The driving part includes a U-shaped frame 307 arranged between the two sets of gears 405. The U-shaped frame 307 is symmetrically fixed with racks 308 that mesh with the gears 405. The U-shaped frame 307 is connected to a pulling mechanism that drives it to reciprocate. It can be explained that when it is necessary to adjust the first guide plate 401 and the second guide plate 402 to move closer or farther away from each other, the U-shaped frame 307 is driven to slide by the pulling mechanism. The U-shaped frame 307 can synchronously drive the rack 308 to move during the movement. The rack 308 can drive the support shaft 404 to rotate by meshing with the gear 405. The support shaft 404 can synchronously drive the first guide plate 401 and the second guide plate 402 to rotate.

[0050] In addition, inclined guide surfaces 403 are provided at the ends of the first guide plate 401 and the second guide plate 402 where they are close to each other; it can be explained that when the first guide plate 401 and the second guide plate 402 rotate toward each other, the inclined guide surfaces 403 on both sides can be completely fitted together to further improve the sealing performance of the connection between the first guide plate 401 and the second guide plate 402.

[0051] To install and fix each biofiller module, please refer to Figure 2 The two ends of the packing support rod 103 are respectively fixed to the first mounting plate 102 and the second mounting plate 101 fixed on the purifier frame 1; specifically, the packing support rod 103 can be fixed to the first mounting plate 102 and the second mounting plate 101 by bolt connection, so as to facilitate disassembly and replacement of the packing.

[0052] In addition, in order to make the purifier float on the river, in this embodiment, a float bladder 2 is provided on the purifier frame 1, and the float bladder 2 is fixed to the first mounting plate 102; specifically, in this embodiment, by providing the float bladder 2, the purifier can float on the river, and the filler body 104 can be immersed in water (see Figure 1 ).

[0053] See also Figure 1-Figure 3 as well as Figure 7The pulling mechanism includes a winding wheel 302 symmetrically arranged on both sides of the float 2. The side of the winding wheel 302 away from the float 2 is fixed to the runner 3. A plurality of blades 301 are fixedly arranged on the runner 3 in a circumferential array. A pull rope 303 is symmetrically fixed on the winding wheel 302. Among them, the U-shaped frame 307 is slidably sleeved on the positioning rod 501. The positioning rod 501 is fixed to the positioning plate 5 fixed to the first mounting plate 102. The positioning rod 501 is provided with a telescopic spring 5 02, one end of the telescopic spring 502 is fixed to the U-shaped frame 307, and the other end is fixed to the positioning plate 5. A limiting rod 306 is fixed to the end of the U-shaped frame 307 that is close to the floating bag 2. The other end of the limiting rod 306 is fixed to the baffle 305, and the baffle 305 is fixed to the adjustment plate 304. The other end of the pull rope 303 is fixed to the adjustment plate 304. It can be explained that when the purifier floats in the river, part of the blades 301 of the runner 3 can be immersed in water (see Figure 1 ), so when the water flow in the river channel accelerates, it can impact the blades 301, and the blades 301 can synchronously drive the runner 3 to rotate, and the runner 3 in turn drives the winding wheel 302 to rotate. During the rotation of the winding wheel 302, the adjusting plate 304 is driven by the pull rope 303 to move toward the direction of the float 2, and the adjusting plate 304 is synchronously driven by the baffle 305 and the limit rod 306 to drive the U-shaped frame 307 to move, so as to drive the first guide plate 401 and the second guide plate 402 to rotate towards each other. During this process, the U-shaped frame 307 slides on the positioning rod 501 and stretches the telescopic spring 502 to generate elastic force. Therefore, when the water flow in the river channel accelerates, the first guide plate 401 and the second guide plate 402 can be automatically adjusted to rotate towards each other under the action of the water flow impact. When the water flow velocity slows down again, the telescopic spring 502 can drive the U-shaped frame 307 and various components to reset. No manual adjustment is required, and the degree of automation is higher.

[0054] As a further solution of this embodiment, please refer to Figure 1 In order to stabilize the purifier in the river, the bottom of the purifier frame 1 is fixed to the riverbed through an anchoring device. The anchoring device can be an anchor chain or an anchor rod, which can improve the stability of the purifier in the river and prevent the purifier from being washed away by the water flow.

[0055] At the same time, this embodiment provides sufficient dissolved oxygen for the respiration of microorganisms by arranging an aeration module 202 at the bottom of the purifier and forcibly adding air to the river water. This is crucial for biological fillers to purify rivers, because microorganisms need to consume a large amount of oxygen when degrading organic pollutants. The aeration equipment ensures that the microbial community can maintain efficient aerobic metabolic activities, thereby accelerating the decomposition of organic pollutants. While oxygenating, it also plays a role in stirring and mixing. It can keep various substances in the river water in a suspended state, promote the full contact between the microorganisms on the biological fillers and the organic pollutants in the water, and improve the efficiency of biological treatment. In addition, the stirring action also helps to prevent the sinking of suspended matter in the water body and maintain the uniformity and stability of the water body.

[0056] It should also be noted that a photovoltaic power generation module 201 is also provided on the float bladder 2 for converting solar energy into electrical energy to power the aeration air pump.

[0057] In addition, a floating bed body and a floating bed matrix can be arranged on the floating bag 2, and floating bed plants can be arranged on the floating bed matrix (see Figure 1 ); the floating bed body is preferably made of polystyrene foam board or inorganic materials such as expanded clay, vermiculite, and perlite; the floating bed matrix is ​​preferably sponge, coconut fiber, etc.; floating bed plants include but are not limited to cattail, canna, reed, water celery, water lettuce, calamus, reed, rice, vetiver, calamus, water hyacinth, and water spinach; in actual work, plant screening should be carried out according to factors such as on-site climate and water quality conditions; floating bed plants are preferably local species with well-developed root systems and strong rhizome reproduction ability; plants grow fast and have large biomass; plants are beautiful and have certain ornamental value; and have certain economic value.

[0058] A purification process for treating river water pollution comprises the following steps:

[0059] See also Figure 1-Figure 3 , S1, place the purifier in the river;

[0060] S2. When the water flow velocity in the river does not exceed the preset value, the water can flow towards each row of biological filler modules (see Figure 4 );

[0061] S3: When the water flow velocity in the river exceeds the preset value, the diversion module 4 guides the water flow (see Figure 5 ), guiding water to flow along the gaps between each row of biofiller modules;

[0062] S4. When the flow velocity in the river decreases again, the diversion module 4 can automatically reset.

[0063] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships 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 direction, and a specific direction structure and operation, and therefore, cannot be understood as limiting the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0064] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0065] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A purification treatment device for treating river water pollution, comprising a purifier frame (1); It is characterized in that The purifier frame (1) is provided with a plurality of rows of biological filler modules arranged in an array, each row of biological filler modules comprising filler support rods (103) fixed at equal intervals in the purifier frame (1), and each group of filler support rods (103) is provided with a plurality of groups of filler bodies (104) evenly arranged along the axial direction thereof; The two sides of the purifier frame (1) are symmetrically provided with flow guide modules (4) for guiding the water flow, and each group of flow guide modules (4) corresponds to each row of biological filler modules. Each group of the flow guide modules (4) comprises a first flow guide plate (401) and a second flow guide plate (402) which are rotatably arranged on the purifier frame (1), and the first flow guide plate (401) and the second flow guide plate (402) are symmetrically arranged with the biological filler module as the center. The flow guide module (4) further comprises a driving unit, which is used to drive the first flow guide plate (401) and the second flow guide plate (402) to rotate toward each other or rotate in opposite directions. The first guide plate (401) and the second guide plate (402) are rotatably arranged on the purifier frame (1) via a support shaft (404), and the top of the support shaft (404) extends above the purifier frame (1) and is fixedly connected to the gear (405); The driving part includes a U-shaped frame (307) arranged between two sets of gears (405), racks (308) meshing with the gears (405) are symmetrically fixed on the U-shaped frame (307), and the U-shaped frame (307) is connected to a pulling mechanism that drives the reciprocating motion thereof; The two ends of the filler support rod (103) are respectively fixed to a first mounting plate (102) and a second mounting plate (101) fixedly arranged on the purifier frame (1); A float bag (2) is provided on the purifier frame (1), and the float bag (2) is fixed to the first mounting plate (102); The pulling mechanism comprises a winding wheel (302) symmetrically arranged on both sides of the float (2), the side of the winding wheel (302) away from the float (2) is fixed to the rotating wheel (3), a plurality of groups of blades (301) are fixedly arranged in a circumferential array on the rotating wheel (3), and a pulling rope (303) is symmetrically fixedly arranged on the winding wheel (302); The U-shaped frame (307) is slidably sleeved on the positioning rod (501), the positioning rod (501) is fixed to the positioning plate (5) fixed to the first mounting plate (102), and a telescopic spring (502) is provided on the positioning rod (501), one end of the telescopic spring (502) is fixed to the U-shaped frame (307), and the other end is fixed to the positioning plate (5), a limiting rod (306) is fixedly arranged on the end of the U-shaped frame (307) close to the floating bag (2), the other end of the limiting rod (306) is fixed to the baffle (305), the baffle (305) is fixed to the adjustment plate (304), and the other end of the pull rope (303) is fixed to the adjustment plate (304).

2. A purification device for treating river water pollution according to claim 1, characterized in that: An inclined guide surface (403) is provided at the end portion of the first guide plate (401) and the second guide plate (402) adjacent to each other.

3. The purification device for treating river water pollution according to claim 1, characterized in that: The bottom of the purifier frame (1) is fixed to the riverbed via an anchoring device.

4. The purification device for treating river water pollution according to claim 1, characterized in that: An aeration module (202) is provided at the bottom of the purifier.

5. A purification process for treating river water pollution, characterized in that: A purification treatment device for treating river water pollution as described in any one of claims 1 to 4 above comprises the following steps: Place purifiers in waterways; When the water flow velocity in the river channel does not exceed the predetermined value, the water can flow toward each row of biological filler modules; When the water flow velocity in the river exceeds a predetermined value, the diversion module (4) guides the water flow, directing the water to flow along the gaps between each row of biological filler modules; When the flow velocity in the river decreases again, the diversion module (4) can automatically reset.

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