River and lake water purification and restoration device

Abstract

The invention relates to the technical field of water treatment, in particular to a river and lake water body purification and restoration device which comprises a gate, a primary purification unit, a secondary purification channel, a purification material room and a terminal treatment system, the primary purification unit is arranged on the interception side of the gate, a hydraulic drive stirrer is arranged in the primary purification unit, and a water inlet of the primary purification unit corresponds to the lake surface; a water outlet of the second-stage purification channel is communicated with the second-stage purification channel, the second-stage purification channel is arranged beside the gate, a filter body is arranged in the second-stage purification channel, a purification material mixture and feeding equipment for feeding the purification material mixture are arranged in the purification material room, and the top end of the second-stage purification channel is communicated with the feeding equipment for dissolving the purification material mixture in advance; oxygen in the air and the purified material mixture are mixed and then discharged to the lake surface. The hydraulically-driven stirrer is driven by water energy, so that the fed purification material mixture is quickly dissolved, and the purified lake water is re-applied to the advanced dissolution of the purification material mixture and the advanced purification of the lake surface.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and particularly relates to a purification and restoration device for river and lake water bodies. Background Art

[0002] The problem of lake water pollution is becoming increasingly serious. In particular, the treatment of floating pollutants on the water surface (such as algae, oil films, plastic garbage, etc.) is quite difficult, which not only affects the beauty of the water area, but also affects the water quality, especially causing great harm to aquatic organisms. If not treated in time, it will affect the ecological balance.

[0003] Traditional purification devices mostly consider sludge cleaning and algae cleaning. Their cleaning methods are relatively single, and the purification effect is limited. It is difficult to achieve thorough purification. The purified lake water cannot be recycled to purify the lake surface again, but is directly discharged through the sluice gate, resulting in a poor purification effect. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides the following technical solutions:

[0005] A purification and restoration device for river and lake water bodies, comprising a gate, a primary purification unit arranged on the interception side of the gate, a secondary purification channel arranged beside the gate, a purification material room arranged on the gate body, and a terminal treatment system connecting the purification material room and the secondary purification channel. A hydraulic drive stirrer is arranged in the primary purification unit, its water inlet corresponds to the lake surface, and its water outlet is communicated with the secondary purification channel. A filter body is arranged in the secondary purification channel, a feeding device is arranged in the purification material room, the water outlet end of the secondary purification channel enters the purification material room and is connected to the feeding device, and the discharge port of the feeding device is communicated with the primary purification unit and provides a purification material mixture for the hydraulic drive stirrer. The terminal treatment system includes a pipeline part. One end of the pipeline part is connected to the secondary purification channel and the feeding device, and the other end winds back to the interception side of the gate and is provided with a water outlet unit. The water outlet unit is located above the lake surface and forms a water curtain relative to the lake surface.

[0006] As a further preference, it further includes an intelligent control system. The intelligent control system includes a sensor detection array arranged on the lake surface. The sensor detection array is composed of various water area detection sensors. It is installed on a connecting rod. One end of the connecting rod is hinged to the primary purification unit, and the other end floats the sensors on the lake surface. The intelligent control system further includes a control module for controlling the opening degree of the gate and a control module for controlling the feeding of the purification material mixture in the material room.

[0007] As a further preference, the primary purification unit is a floating purification cylinder. Its water inlet is equipped with an intercepting net. It controls the water level change through the opening degree of the gate, so that the primary purification unit automatically rises and falls with the water inlet on the interception side of the gate. Its top is connected above the gate body through a connecting rod structure, and its two sides are slidably connected to the interception side of the gate body.

[0008] As a further preference, one end of the water outlet of the primary purification unit inclines downward towards the direction of the secondary purification channel, and an inclined seat is provided inside the primary purification unit. The inner end of the inclined seat inclines inward towards the bottom of the hydraulic-driven stirrer and is provided with an inner inclined part, and the outer end of the inclined seat inclines outward towards the direction of the secondary purification channel and is provided with an outer inclined part. A triangular convection chamber is formed between the inner inclined part and the outer inclined part towards the bottom of the cavity of the primary purification unit. There is a concave surface on the inner inclined part relative to the bottom side of the hydraulic-driven stirrer, and convection holes communicating with the convection chamber are opened on the concave surface.

[0009] As a further preference, the secondary purification channel extends vertically upward along the side of the gate, and at least two layers of filter media are filled inside it. The bottom layer is a quartz sand filter layer, and the upper layer is an activated carbon adsorption layer. A partition net is provided between the two. A vertical water storage channel is provided between the secondary purification channel and the side of the gate. The bottom end of the water storage channel communicates with the secondary purification channel, and the middle communicates with the water outlet of the primary purification unit. The thickness of the quartz sand filter layer is 0.5 - 1 meter, and there are filter gaps between them. The thickness of the activated carbon adsorption layer is 0.3 - 0.8 meter. Among them, the activated carbon adsorption layer is divided into left and right layers and distributed on both sides of the secondary purification channel, and a surging gap is formed between the two layers of activated carbon adsorption layers.

[0010] As a further preference, the top end of the secondary purification channel is connected with a first release pipe. At least three branches are provided on the first release pipe. The first branch enters the purification material room and is connected with the feeding device in the purification material room. The second branch directly detours to the interception side. The third branch enters the purification material room and communicates with the feeding device, and the other end is connected with the pipeline part of the terminal treatment system. The third branch detours and bends above the lake surface on the interception side of the gate.

[0011] As a further preference, the water outlet unit is a spray head, and a high-pressure atomization pump is also provided on the pipeline part of the terminal treatment system.

[0012] As a further preference, a second release pipe is connected to the water storage channel, and the water outlet end of the second release pipe detours to the interception side of the gate.

[0013] As a further preference, the purification material mixture is composed of a flocculant: polyaluminum chloride (PAC), polyacrylamide (PAM), an algaecide: sodium percarbonate, a modified bentonite oil degradation agent: a biological enzyme preparation, a pH regulator: sodium bicarbonate, an oxidant: hydrogen peroxide sustained-release granules, which are mixed in proportion.

[0014] The beneficial effects of the present invention compared with the prior art are:

[0015] When the floating pollutants are severe, the opening of the control gate is reduced, and the water level rises to the primary purification unit. The lake water with floating pollutants is introduced into the primary purification unit, and then discharged into the secondary purification channel through the water outlet. Before the polluted water is discharged into the secondary purification channel, it passes through a hydraulic-driven agitator. The water kinetic energy is used to drive the hydraulic-driven agitator to rotate in the primary purification unit. At the same time, the discharging device in the purification material room aligns with the hydraulic-driven agitator to put the purification material mixture into the primary purification unit. The purification material mixture is stirred by the hydraulic-driven agitator and dissolved in the polluted water, so that the polluted water is initially purified and then flows into the secondary purification channel. After being secondary purified by the filter in the secondary purification channel, a part of the purified water enters the purification material room and is used to be injected into the discharging device to dissolve the purification material mixture in advance before it is put into the primary purification unit. Another part of the purified water transports a part of the purification material mixture to the pipeline part through the feeding device, and is sent to the water outlet unit by the pipeline part. The purification material mixture falls onto the lake surface. When this part of the purified water falls, it will contact the air, mix the oxygen in the air with the purification material mixture and then discharge it onto the lake surface. The hydraulic-driven agitator is driven by water energy, which not only makes the input purification material mixture dissolve quickly, but also re-uses the purified lake water for pre-dissolving the purification material mixture and pre-purifying the lake surface. Description of the Drawings

[0016] Figure 1 Schematic view of the intercepting side perspective of the river and lake water body purification and restoration device provided by the embodiment of the present invention;

[0017] Figure 2 The river and lake water body purification and restoration device provided by the embodiment of the present invention is from Figure 1 Enlarged schematic view of part A drawn;

[0018] Figure 3 Schematic view of the bottom upward perspective of the river and lake water body purification and restoration device provided by the embodiment of the present invention;

[0019] Figure 4 Schematic view of the drainage side perspective of the river and lake water body purification and restoration device provided by the embodiment of the present invention;

[0020] Figure 5 Schematic view of the cut-open river and lake water body purification and restoration device provided by the embodiment of the present invention;

[0021] Figure 6 Schematic view of only the purification material room when the river and lake water body purification and restoration device provided by the embodiment of the present invention is cut open;

[0022] Figure 7 The river and lake water body purification and restoration device provided by the embodiment of the present invention is from Figure 5 Enlarged schematic view of part B drawn.

[0023] In the figure: 10, gate; 20, primary purification unit; 210, hydraulic drive stirrer; 220, inclined seat; 2201, inner inclined part; 2202, outer inclined part; 2203, convection chamber; 2204, concave surface; 2205, convection hole; 30, secondary purification channel; 310, quartz sand filter layer; 320, activated carbon adsorption layer; 3010, water storage channel; 3011, second release pipe; 330, first release pipe; 340, first branch; 350, second branch; 360, third branch. 40, purification material room; 50, terminal treatment system; 510, pipeline part; 520, water outlet unit; 60, intelligent control system; 610, sensor; 611, connecting rod. Specific implementation mode

[0024] The above and other implementation modes and advantages of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described implementation modes are only part of the implementation modes of the present invention, rather than all implementation modes.

[0025] In one implementation mode, as Figures 1-7 shown: This implementation mode provides a device for purifying and restoring river and lake water bodies, including a gate 10, a primary purification unit 20 arranged on the intercepting side of the gate 10, a secondary purification channel 30 arranged beside the gate 10, a purification material room 40 arranged on the gate body, and a terminal treatment system 50 connecting the purification material room 40 and the secondary purification channel 30. A hydraulic drive stirrer 210 is arranged in the primary purification unit 20, its water inlet corresponds to the lake surface, and its water outlet is connected to the secondary purification channel 30. A filter body is arranged in the secondary purification channel 30, a feeding device is arranged in the purification material room 40, the water outlet end of the secondary purification channel 30 enters the purification material room 40 and is connected to the feeding device, and the discharge port of the feeding device is connected to the primary purification unit 20 and provides a purification material mixture for the hydraulic drive stirrer 210. The terminal treatment system 50 includes a pipeline part 510. One end of the pipeline part 510 is connected to the secondary purification channel 30 and the feeding device, and the other end winds back to the intercepting side of the gate 10 and is equipped with a water outlet unit 520. The water outlet unit 520 is located above the lake surface and forms a water curtain relative to the lake surface.

[0026] In this embodiment, when the floating pollutants on the lake (river) surface are severe, the opening of the control gate 10 is controlled to become smaller, and the water level on the intercepting side rises to the primary purification unit 20. The lake water with floating pollutants (collectively referred to as polluted water for convenience of description) enters the primary purification unit 20 from the water inlet, and then is discharged into the secondary purification channel 30 from the water outlet. Before the polluted water is discharged into the secondary purification channel 30, it passes through the hydraulic drive agitator 210. The hydraulic drive agitator 210 is driven to rotate in the primary purification unit 20 by the water kinetic energy. At the same time, the discharging device in the purification material chamber 40 is aligned with the hydraulic drive agitator 210 to put the purification material mixture into the primary purification unit 20. The purification material mixture is stirred and dissolved in the polluted water by the hydraulic drive agitator 210, so that the polluted water is subjected to primary purification and then flows to the secondary purification channel 30. A part of the purified water obtained after secondary purification by the filter body in the secondary purification channel 30 enters the purification material chamber 40 and is used to be injected into the discharging device for pre-dissolving before the purification material mixture is put into the primary purification unit 20. Another part of the purified water transports a part of the purification material mixture to the pipeline part 510 through the feeding device, and is sent to the water outlet unit 520 by the pipeline part 510. The purification material mixture falls onto the lake surface. When this part of the purified water falls, it will contact the air, mix the oxygen in the air with the purification material mixture and then discharge it onto the lake surface.

[0027] In this embodiment, the hydraulic drive agitator 210 is driven by water energy, which not only enables the input purification material mixture to be quickly dissolved, but also re-uses the purified lake water for pre-dissolving the purification material mixture and pre-purifying the lake surface.

[0028] In another embodiment, the present invention further includes an intelligent control system 60. The intelligent control system 60 controls the feeding device and controls the third-party feeding device to replenish the feeding device. The intelligent control system 60 includes a sensor detection array arranged on the lake surface. The sensor detection array is composed of a variety of water area detection sensors 610, which are installed on the connecting rod 611. One end of the connecting rod 611 is hinged to the primary purification unit 20, and the other end floats the sensor 610 on the lake surface. The intelligent control system 60 further includes a control module for controlling the opening of the gate 10 and a control module for controlling the putting of the purification material mixture in the material chamber.

[0029] In this embodiment, various water area detection sensors 610 are similar to suspended matter sensors, pollution concentration sensors, oil pollution sensors, and ammonia nitrogen nitrate sensors for aquaculture water area detection. A universal joint is provided on the primary purification unit 20. One end of the connecting rod 611 is hinged to the universal joint, and these sensors are installed at the other end of these connecting rods 611 and float on the lake surface through a floating body to detect the water quality. The detection signal is fed back to the matching detection module on the controller, which controls the opening of the gate 10 to automatically become smaller. Due to the reduction of the drainage volume at the gate opening, the water level rises, and the lake surface drives the primary purification unit 20 to rise to the limit position. The sewage on the lake surface automatically enters the primary purification unit 20, and the water energy is used to drive the hydraulic drive agitator 210 to automatically rotate. At the same time, the controller in the intelligent control system 60 controls the feeding equipment to mix materials and then automatically discharge materials into the primary purification unit 20 through a flexible discharge pipe. After purifying for a period of time, when the water quality reaches the standard detected by each sensor, the intelligent control system 60 controls the above-mentioned electrical components to cut off the power supply to achieve automation.

[0030] In another embodiment, the primary purification unit 20 is a floating purification cylinder. Its water inlet is equipped with an intercepting net, and its water level change is controlled by the opening of the gate 10, so that the primary purification unit 20 drives the water inlet to automatically rise and fall according to the water level change. Its top end is connected above the gate body through a connecting rod structure, and its two sides are slidably connected to the intercepting side of the gate body. The sliding method is a roller cooperating with a track, but there is a limit above the sliding position. When the primary purification unit 20 rises to the limit due to the water level change, it stops rising, and the sewage enters the primary purification unit 20. According to the rise and fall of the primary purification unit 20, each sensor is driven, so that each sensor floats on the lake surface to detect the water quality.

[0031] In another embodiment, one end of the water outlet of the primary purification unit 20 is inclined downward towards the direction of the secondary purification channel 30, and an inclined seat 220 is provided inside the primary purification unit 20. The inner end of the inclined seat 220 is inclined towards the bottom of the hydraulic drive agitator 210 to be provided with an inner inclined part 2201, and the outer end of the inclined seat 220 is inclined towards the direction of the secondary purification channel 30 to be provided with an outer inclined part 2202. A triangular convection chamber 2203 is formed between the inner inclined part 2201 and the outer inclined part 2202 towards the bottom of the cavity of the primary purification unit 20. There is an inner concave surface 2204 on the inner inclined part 2201 relative to the bottom side of the hydraulic drive agitator 210, and a convection hole 2205 communicating with the convection chamber 2203 is opened on the inner concave surface 2204.

[0032] In this embodiment, before the sewage is discharged along the inner cavity of the primary purification unit 20 towards the water outlet, it will be buffered and blocked by the inner inclined part 2201, and discharged at a reduced speed under the buffering and blocking of the inner inclined part 2201. After the eddy current effect of the inner concave surface 2204, it surges into the convection cavity 2203 through the convection holes 2205, surges in the convection cavity 2203 and then is discharged reversely through the convection holes 2205, and finally is discharged through the outer inclined part 2202 and the water outlet. After the water flow is intervened by the up-speed method, the residence time of the floating objects near the hydraulic drive agitator 210 is extended, the stirring and dissolving time of the mixture by the hydraulic drive agitator 210 becomes longer, and the dissolution quality is improved.

[0033] In another embodiment, the secondary purification channel 30 extends vertically upward along the side of the gate 10, and at least two layers of filter media are filled inside it. The bottom layer is the quartz sand filter layer 310, and the upper layer is the activated carbon adsorption layer 320. A partition net is provided between the two. A vertically upward water storage channel 3010 is provided between the secondary purification channel 30 and the side of the gate 10. The bottom end of the water storage channel 3010 communicates with the secondary purification channel 30, and the middle communicates with the water outlet of the primary purification unit 20. The thickness of the quartz sand filter layer 310 is 0.5 - 1 meter, and there are filter gaps between them. The thickness of the activated carbon adsorption layer 320 is 0.3 - 0.8 meter. The middle activated carbon adsorption layer 320 is divided into left and right layers and distributed on both sides of the secondary purification channel 30, and a surging gap is formed between the two layers of activated carbon adsorption layer 320.

[0034] In this embodiment, after the sewage is purified at the primary level by the primary purification unit 20, it first enters the water storage channel 3010. The water storage channel 3010 provides a buffer space for the water purified at the primary level, and then enters the secondary purification channel 30 from the bottom of the secondary purification channel 30 through the connection relationship. After being filtered at the secondary level by the quartz sand filter layer 310 at the bottom layer of the secondary purification channel 30, it rises to the activated carbon adsorption layer 320 and continues to rise along the surging gap. During the rising process, it is purified at the tertiary level by the left and right layers of activated carbon adsorption layer 320 to remove odors.

[0035] In another embodiment, the top end of the secondary purification channel 30 is connected with a first release pipe 330. At least three branches are provided on the first release pipe 330. The first branch 340 enters the purification material room 40 and is connected with the feeding device in the purification material room 40. The second branch 350 communicates with the pipeline part 510 of the terminal treatment system 50. The third branch 360 winds and bends on the lake surface on the intercepting side of the gate 10.

[0036] In this embodiment, the water obtained after three-stage purification enters the first release pipe 330. A small part enters the feeding device through the first branch 340 to dissolve the purified material mixture in the cabin in advance. Most of it directly returns to the lake surface through the second branch 350 to neutralize the sewage. At the same time, it also speeds up the release speed of the secondary purification channel 30, providing a buffer space for the rising of the continuously purified water. Another small part passes through the third branch 360. After the detour effect of the third branch 360, it descends to the lake surface on the intercept side of the gate 10 with part of the purified material mixture and oxygen in the air, purifying the lake surface in advance and improving the purification efficiency.

[0037] In another embodiment, the water outlet unit 520 is an entire spray body connected with a large number of atomizing nozzles through thin pipes, with a shield on it. A high-pressure atomizing pump is also provided on the pipeline part 510 of the terminal treatment system 50. The high-pressure atomizing pump pressurizes the purified water, and finally sprays it onto the lake surface in an atomized manner by the water outlet unit 520. When this part of the purified water is reused, it is sprayed onto the lake surface in an atomized form, reducing the spraying speed, making the contact time between this part of the purified water and the oxygen in the air longer, and dropping most of the oxygen components onto the lake surface, further improving the quality of the lake surface purified in advance.

[0038] In another embodiment, a second release pipe 3011 is connected to the water storage channel 3010, and the water outlet end of the second release pipe 3011 detours to the intercept side of the gate 10. When the primary purified water in the water storage channel 3010 is discharged into the secondary purification channel 30, the flow rate will be affected because there is a purification body in the secondary purification channel 30. Therefore, the water storage channel 301 is relatively high and has a large buffer space. Even if the primary purified water cannot be completely accommodated, the excess water can be discharged back to the intercept side through the second release pipe 3011 to purify and neutralize the sewage surface on the intercept side in advance.

[0039] It should be further noted that the feeding equipment mentioned in the present invention, such as a feeding machine or a feeding pump, etc., is prior art. Its feeding port is connected to a feeding equipment, and its discharging port is equipped with an electromagnetic valve. The controller automatically starts the feeding equipment to start, feed, and mix materials. After timing, it controls the electromagnetic valve to automatically open the discharge. Its discharging port is connected to the pipeline part 510 and the flexible discharging pipe through two discharging channels respectively, sending a part of the purified material mixture into the pipeline part 510 to purify the lake surface in advance, and putting another part of the purified material mixture into the primary purification unit 20 through the flexible discharging pipe (such as a flexible discharging pipe) for primary purification of sewage. The purified material mixture is composed of a flocculant: polyaluminum chloride (PAC), polyacrylamide (PAM), an algaecide: sodium percarbonate, modified bentonite, an oil degradation agent: biological enzyme preparation, a pH regulator: sodium bicarbonate, and an oxidant: hydrogen peroxide sustained-release particles, which are mixed in proportion before feeding the feeding equipment.

[0040] The above orientation references do not represent the specific orientations of the components in this implementation solution. This implementation solution is only for the convenience of describing the solution and is set with relative descriptions with reference to the orientations in the figures. In essence, the specific orientations of the components are based on their actual installation, actual use, and the habitual orientation descriptions of those skilled in the art. This is hereby stated.

[0041] The specific implementation manners described above have further elaborated on the invention purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are only the specific implementation manners of the present invention and are not used to limit the protection scope of the present invention. In particular, for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A purification and restoration device for river and lake water bodies, characterized in that, It includes a gate (10), a primary purification unit (20) arranged on the interception side of the gate (10), a secondary purification channel (30) arranged on the side of the gate (10), a purification material chamber (40) arranged on the gate body, and a terminal treatment system (50) connecting the purification material chamber (40) and the secondary purification channel (30). There is a hydraulic drive stirrer (210) in the primary purification unit (20). Its water inlet corresponds to the lake surface, and its water outlet is connected to the secondary purification channel (30). There is a filter body in the secondary purification channel (30). There is a feeding device in the purification material chamber (40). The water outlet end of the secondary purification channel (30) enters the purification material chamber (40) and is connected to the feeding device. The discharge port of the feeding device is connected to the primary purification unit (20) and supplies a purification material mixture to the hydraulic drive stirrer (210). The terminal treatment system (50) includes a pipeline part (510). One end of the pipeline part (510) is connected to the secondary purification channel (30) and the feeding device, and the other end winds back to the interception side of the gate (10) and is equipped with a water outlet unit (520). The water outlet unit (520) is located above the paste surface and forms a water curtain relative to the lake surface.

2. The purification and restoration device for river and lake water bodies according to claim 1, characterized in that, It further includes an intelligent control system (60). The intelligent control system (60) includes a sensor detection array arranged on the lake surface. The sensor detection array is composed of various water area detection sensors (610). It is installed on a connecting rod (60). One end of the connecting rod (60) is hinged to the primary purification unit (20), and the other end floats the sensor (610) on the lake surface. The intelligent control system (60) further includes a control module for controlling the opening degree of the gate (10), and a control module for controlling the feeding of the purification material mixture in the material chamber.

3. The river and lake water purification and restoration device according to claim 2, characterized in that, The primary purification unit (20) is a floating purification cylinder. Its water inlet is equipped with an interception net. It controls the water level change through the opening degree of the gate (10), so that the primary purification unit (20) automatically rises and falls with the water inlet on the interception side of the gate (10). Its top end is connected above the gate body through a connecting rod structure, and its two sides are slidably connected to the interception side of the gate body.

4. The river and lake water purification and restoration device according to claim 3, characterized in that, One end of the water outlet of the primary purification unit (20) inclines downward towards the secondary purification channel (30). And there is an inclined seat (220) inside the primary purification unit (20). The inner end of the inclined seat (220) is inclined with an inner inclined part (2201) towards the bottom of the hydraulic drive stirrer (210). The outer end of the inclined seat (220) is inclined with an outer inclined part (2202) towards the secondary purification channel (30). A triangular convection chamber (2203) is formed between the inner inclined part (2201) and the outer inclined part (2202) towards the bottom of the cavity of the primary purification unit (20). There is an inner concave surface (2204) on the inner inclined part (2201) relative to the bottom side of the hydraulic drive stirrer (210). Convection holes (2205) communicating with the convection chamber (2203) are opened on the inner concave surface (2204).

5. The purification and restoration device for river and lake water bodies according to claim 4, wherein, The secondary purification channel (30) extends vertically upward along the side of the gate (10). Its interior is filled with at least two layers of filter media. The bottom layer is a quartz sand filter layer (310), and the upper layer is an activated carbon adsorption layer (320). A partition net is provided between the two. A vertical upward water storage channel (3010) is provided between the secondary purification channel (30) and the side of the gate (10). The bottom end of the water storage channel (3010) is connected to the secondary purification channel (30), and the middle is connected to the water outlet of the primary purification unit (20). The thickness of the quartz sand filter layer (310) is 0.5 - 1 meter, with filtering gaps left between them. The thickness of the activated carbon adsorption layer (320) is 0.3 - 0.8 meter. The middle activated carbon adsorption layer (320) is divided into left and right layers and distributed on both sides of the secondary purification channel (30). A surging gap is formed between the two layers of activated carbon adsorption layer (320).

6. The purification and restoration device for river and lake water bodies according to claim 5, characterized in that, The top end of the secondary purification channel (30) is connected to a first release pipe (330). The first release pipe (330) has at least three branches. The first branch (340) enters the purification material room (40) and is connected to the feeding device in the purification material room (40). The second branch (350) directly detours to the interception side. The third branch (360) enters the purification material room (40) and is connected to the feeding device, and the other end is connected to the pipeline part (510) of the terminal treatment system (50). The third branch (360) detours and bends above the lake surface on the interception side of the gate (10).

7. The river and lake water purification and restoration device according to claim 1, characterized in that, The water outlet unit (520) is an atomizing nozzle, and a high-pressure atomizing pump is also provided on the pipeline part (510) of the terminal treatment system (50).

8. The river and lake water purification and restoration device according to claim 5, characterized in that, A second release pipe (3011) is connected to the water storage channel (3010). The water outlet end of the second release pipe (3011) detours to the interception side of the gate (10).

9. The river and lake water purification and restoration device according to claim 1, wherein The purified material mixture is composed of a flocculant: polyaluminum chloride (PAC), polyacrylamide (PAM), an algaecide: sodium percarbonate, modified bentonite, an oil degradation agent: biological enzyme preparation, a pH regulator: sodium bicarbonate, an oxidant: hydrogen peroxide sustained-release granule, mixed in proportion.

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