A method for treating black and odorous water bodies

Abstract

This invention relates to the field of water treatment technology and discloses a method for treating black and odorous water bodies, comprising the following steps: S1: placement and preparation of a mixing jet mechanism; S2: stirring the water body to induce an upwelling flow; S3: adding photo-oxidation activating materials to the water body; S4: dissolving pollutants in the water body and activating the sediment and indigenous microorganisms in the water body. The technical solution of this invention can solve the problems of unstable water quality, high investment costs, easy recurrence of black and odorous water bodies, and potential secondary environmental pollution existing in current black and odorous water body treatment technologies.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a method for treating black and odorous water bodies. Background Technology

[0002] With the rapid advancement of industrialization, urbanization, and informatization, the problem of damaged rivers and lakes, especially black and odorous water bodies, has become increasingly severe. Black and odorous water bodies are characterized by high concentrations of organic matter, poor transparency, and low dissolved oxygen, causing great damage to the urban landscape and seriously harming the quality of life and physical and mental health of citizens.

[0003] The formation of black and odorous water bodies involves a series of complex biological reactions and is closely related to various factors such as oxygen consumption, endogenous pollution, decreased water flow, and increased water temperature. Various plans have been introduced to advance remediation efforts, aiming to increase the proportion of surface water and nearshore marine waters with excellent quality and to build beautiful rivers, lakes, and bays.

[0004] Existing technologies for treating black and odorous water bodies mainly employ dredging and microbial treatment. However, while these methods can improve water quality to some extent, they generally result in unstable water quality, making it difficult to maintain a good water quality state in the long term. Furthermore, these methods are costly, placing a significant burden on local finances. In addition, treated water bodies are prone to reverting to their original black and odorous state, making the treatment effects unsustainable. More seriously, they may also trigger secondary environmental pollution problems, causing new damage to the ecological environment. Summary of the Invention

[0005] The present invention aims to provide a method for treating black and odorous water bodies, in order to solve the problems of unstable water quality, high investment costs, easy recurrence of black and odorous water bodies, and potential secondary environmental pollution in existing black and odorous water body treatment technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a method for treating black and odorous water bodies, comprising the following steps:

[0007] S1: Placement and preparation of the mixed injection mechanism;

[0008] S2: Stirring the water body to induce an upwelling flow;

[0009] S3: Add photo-oxidation activating materials to the water body;

[0010] S4: Dissolves pollutants in water and activates indigenous microorganisms in sediment and water.

[0011] The beneficial effects of this solution are as follows: When purifying black and odorous water bodies, a mixing and spraying mechanism is first placed in the water body. This mechanism agitates the water, creating an upwelling flow and altering the water's stratification. This allows the underlying anaerobic or facultative anaerobic water to gradually rise to the surface and exchange mass with the air, changing the original oxygen gradient, increasing and homogenizing dissolved oxygen content, increasing or restoring the activity of aquatic microorganisms, improving oxygen levels and the progress of redox reactions in the sediment, thus effectively activating the water and increasing its flowability. Then, a photo-oxidation activating material is sprayed into the water through the mixing and spraying mechanism. Under natural sunlight, the combined effects of photolysis and enzyme catalysis allow the water to efficiently absorb solar photons. Through electron transfer between redox enzymes and photosensitizers, highly active substances and a large number of •OH free radicals are formed, thereby dissolving pollutants in the water, activating active enzymes and indigenous microorganisms in the sediment and water, and significantly enhancing the water body's self-purification capacity. In addition, the oxygen-storing material in the photo-oxidation activation material can enter the bottom of the water as the water flows, and gradually release oxygen-containing substances at the bottom, thereby further improving the oxygen content of the bottom sediment and the underlying water, and significantly improving the water purification effect.

[0012] Compared with existing technologies, this technical solution has the following advantages:

[0013] 1. Stable water quality: This technical solution effectively changes the water stratification state through the synergistic effect of stirring and photo-oxidation activation materials, increases the dissolved oxygen content and homogenizes its distribution, increases the activity of aquatic microorganisms, improves the oxygen content of the water and the redox reaction of the bottom sediment, thereby establishing a stable ecological environment for the water body, enabling the water quality to remain in a good state for a long time and reducing the impact of water quality fluctuations on the ecosystem.

[0014] 2. Low investment cost: It avoids the high investment costs of methods such as dredging and desilting, and reduces the financial burden on local governments.

[0015] 3. Less Prone to Recurrence of Blackening and Odor: This technical solution fundamentally solves the problem of water pollution. By promoting the decomposition of pollutants in the water, improving the oxygen content, inhibiting the growth and metabolism of anaerobic microorganisms, and reducing the production of odor-causing substances, the continuous and stable water activation process gradually restores the balance of the aquatic ecosystem, enhancing the water body's self-purification capacity. This effectively prevents the recurrence of black and odorous water, ensuring the long-term effectiveness of water treatment.

[0016] 4. No secondary environmental pollution: The photo-oxidation activation materials used in this technical solution will not generate new harmful substances or cause secondary pollution to the environment during the water treatment process. This not only meets environmental protection requirements but also protects the surrounding ecological environment, which is of great significance for maintaining ecological balance and sustainable development.

[0017] 5. Ecosystem Reconstruction: Light sources induce rapid restoration of submerged vegetation, rebuilding the underwater forest ecosystem. Photosynthesis increases dissolved oxygen, creating favorable conditions for microbial degradation of pollutants and improving the surrounding environment; plant roots absorb nitrogen and phosphorus, inhibiting algae growth and reproduction; they provide habitats for microorganisms and prey on phytoplankton; stems, leaves, and roots slow water flow, filtering sediment; and the release of allelochemicals inhibits algae growth, effectively degrading pollutants and improving water transparency, further enhancing the water's self-purification capacity and promoting a virtuous cycle of the ecological environment.

[0018] Furthermore, the mixing and spraying mechanism in S1 includes a mixing unit and a material spraying unit. The mixing unit is used to stir the water and cause the water to form an upwelling flow. The material spraying unit is used to spray photo-oxidation activated materials into the water.

[0019] The beneficial effects of this solution are as follows: Due to the setting of the mixing unit, this technical solution can promote the formation of upwelling flow in the water body, change the stratification state of the water body, and allow the anaerobic or facultative anaerobic water body under the overlying water body to gradually rise to the water surface to exchange mass with the air, change the original stratified oxygen gradient, increase and homogenize the dissolved oxygen content of the water body, increase or restore the activity of microorganisms in the water body, improve the oxygen content of the water body and the redox reaction of the bottom sediment, thereby effectively activating the water body and increasing the water flow.

[0020] Due to the material spraying unit, this technical solution can evenly disperse the photo-oxidation activating material into the water body, increase its contact area with pollutants, improve reaction efficiency, and thus more effectively promote the decomposition of pollutants in the water body, realize the purification and activation regeneration of the water body, and improve the overall quality and ecological function of the water body.

[0021] Furthermore, in S2, a mixing unit is used to stir the water. The mixing unit includes a power unit and a rotating disk. The power unit can drive the rotating disk to rotate. Several rotating rods are evenly distributed around the circumference of the rotating disk. Each rotating rod has a blade installed at its free end. As the blade rotates with the rotating disk, it can drive the water to flow and promote the formation of an upwelling flow.

[0022] The beneficial effects of this solution are as follows: This technical solution uses a power component to drive a rotating disk, with the blades rotating synchronously with the disk. This promotes an upward and outward flow field in the water, i.e., upwelling, effectively altering the stratification of the water. Water that was originally in an anaerobic or facultative state gradually rises to the surface, allowing for sufficient mass exchange with the air. This measure changes the original stratified oxygen gradient, significantly increasing and homogenizing the dissolved oxygen content in the water, increasing or restoring the activity of aquatic microorganisms, and improving the oxygenation status of the water and the progress of redox reactions in the sediment. Therefore, it effectively revitalizes the water, significantly increases its fluidity, lays a solid foundation for the improvement and stability of the aquatic ecological environment, and is conducive to enhancing the water's self-purification capacity and promoting a virtuous cycle of the ecosystem.

[0023] Furthermore, in S3, photo-oxidation activating material is added to the water body through a material injection unit. The material injection unit includes a storage section and an injection section. The photo-oxidation activating material is stored in the storage section, and the injection section can mix the photo-oxidation activating material with water and then spray it into the water body.

[0024] The beneficial effects of this solution are as follows: Due to the storage unit, this technical solution can safely and stably store the photo-oxidation activating material, ensuring that its quality and performance are not affected before use, thus providing a reliable material guarantee for water treatment. Due to the spraying unit, the photo-oxidation activating material is mixed with water and then sprayed, allowing the material to be more evenly dispersed in the water, increasing the contact area with pollutants, improving reaction efficiency, and thus more effectively promoting the decomposition and transformation of pollutants in the water, further enhancing the water purification effect, creating more favorable conditions for water activation and regeneration, and contributing to the restoration and stable development of the aquatic ecosystem.

[0025] Furthermore, the rotational speed of the power component is 0-20 RPM.

[0026] The beneficial effects of this solution are as follows: The rotational speed of the power component in this technical solution is 0-20 RPM. When the rotational speed reaches 15-20 RPM, the natural frequency of the water's own vibration gradually approaches the frequency of the periodic force applied to the water by the blades during rotation, thus inducing resonance. Once resonance occurs, the water can absorb more energy, and its vibration amplitude will significantly increase, thereby significantly improving the mixing effect of the water. This effect allows substances at different levels and in different areas of the water to mix more fully, effectively promoting the uniform distribution of dissolved oxygen and photo-oxidative materials in the water, creating more favorable conditions for the activation and regeneration process of the water, and helping to achieve water purification and ecological restoration goals more efficiently.

[0027] Furthermore, each blade consists of a thruster plate, a lifter plate, and a baffle. The thruster plate is detachably connected to the rotating rod, the lifter plate is installed at an angle at the bottom of the thruster plate, and the baffle is fixedly connected between the lifter plate and the thruster plate and on the side close to the rotating disk.

[0028] The beneficial effects of this solution are as follows: The ingenious arrangement of the lift plate, pusher plate, and baffles plays a crucial role in this technical solution. When the blades rotate, they can efficiently generate a surge flow. This process powerfully lifts the water from the bottom to the surface, then pushes it outwards, thus forming a large-scale and highly efficient water circulation system. During this circulation process, dissolved oxygen can be fully replenished and homogenized, thereby effectively improving the original anaerobic environment of the water body and creating favorable conditions for the survival and activities of various aquatic organisms.

[0029] Meanwhile, the detachable connection between the propeller blade and the rotating rod is a significant advantage. This design makes operation extremely convenient when the blades are damaged or need to be replaced or adjusted according to different water conditions. Blade replacement can be easily achieved without complicated tools and cumbersome procedures, greatly improving the maintainability and adaptability of the equipment.

[0030] Furthermore, the propulsion plate includes a first connecting section and a second connecting section connected in sequence, with the angle between the first connecting section and the second connecting section being 145°-155°; the shape of the rotating rod is adapted to the shape of the propulsion plate, and the angle between the propulsion plate and the propulsion plate is 95°-100°.

[0031] The beneficial effects of this solution are as follows: In this technical solution, the angle between the first connecting section and the second connecting section is set to 145°-155°. This design allows the blades to more effectively push the water outward during rotation. This significantly increases the activation area of ​​the water body, allowing more water to participate in the circulation and activation process, thus improving the overall fluidity and uniformity of oxygen distribution.

[0032] The angle between the lift plate and the thrust plate is set at 95°-100°, which allows the bottom water to be lifted to the surface at a more optimized angle when the blades rotate. This specific angle ensures the efficiency and stability of the upwelling, enabling the anaerobic water at the bottom to quickly come into contact with the air and exchange oxygen, further improving the overall oxygen content of the water body and creating more favorable conditions for the survival of various organisms in the water and enhancing the water body's self-purification capacity.

[0033] Compared with setting the blades in a straight plate shape, this technical solution has the following advantages:

[0034] (1) For straight blades, the main force direction is horizontal, and the vertical stirring of the water is relatively weak. However, the riser plate in this technical solution is horizontal. When the blades rotate, the riser plate can effectively turn the lower water layer upward. This is because the riser plate and the pusher plate are at an angle of 95°-100°. This inclined structure makes the riser plate act like a shovel during rotation, lifting the lower water layer and breaking the vertical stratification of the water. Compared with straight blades, the pusher plate in this technical solution can cover a wider water area when rotating. Straight blades mainly generate water flow on both sides of a plane when rotating, while the special shape of the pusher plate allows the water flow to flow in a more complex direction, which can entrain a larger area of ​​water in the mixing process, thereby changing the stratification of the water and significantly increasing the dissolved oxygen content of the water.

[0035] (2) The propeller plate can push the material sprayed on the water surface horizontally, dispersing the material to a wider area. At the same time, the horizontal part (uplift plate) can turn the lower water and material upward, carrying the material to different depths and preventing the material from accumulating on the water surface. In contrast, the straight blade mainly pushes the material horizontally, which tends to concentrate the material on a single plane and cannot effectively disperse the material to different depths in the water. This technical solution, through the synergistic effect of the uplift plate and the propeller plate, enables the material and water to be fully mixed in both vertical and horizontal directions. This multi-dimensional mixing method is more uniform than the single horizontal mixing method of the straight blade, which is conducive to the full contact between the material and the pollutants in the water, thereby improving the efficiency of water purification.

[0036] Furthermore, the photo-oxidation activating material is composed of photosensitizers, oxidoreductases, and oxygen storage materials.

[0037] The beneficial effects of this solution are as follows: Due to the addition of photosensitizers and oxidoreductases, this technical solution triggers a photocatalytic and enzyme-catalyzed photoenzyme reaction system under natural light conditions, efficiently absorbing solar photons. Through electron transfer by oxidoreductases and photosensitizers, highly active substances and a large number of •OH free radicals can be formed, thereby dissolving pollutants in the water, activating active enzymes and indigenous microorganisms in the sediment and water, and greatly enhancing the self-purification capacity of the water body. Simultaneously, after being sprayed by the jetting unit, the oxygen storage material can enter the bottom of the water body under the agitation and circulation of the paddles. The oxygen storage material is carried to the bottom of the water body, gradually releasing oxygen-containing substances, thereby further improving the oxygen content of the sediment and the underlying water body, significantly improving the water purification effect.

[0038] Furthermore, the jetting section includes a submersible pump, and a jet pipe is installed at the outlet of the submersible pump. The jet pipe can draw the photo-oxidation activated material stored in the storage section into the jet pipe and mix it with water. A diverter plate is installed at the free end of the jet pipe. The inside of the diverter plate is provided with a receiving cavity. The jet pipe is connected to the receiving cavity. Several nozzles are evenly distributed in the circumferential direction on the outer side of the diverter plate. The material in the receiving cavity can be sprayed into the water body through the nozzles.

[0039] The beneficial effects of this solution are as follows: The design of the spray section is ingenious and highly efficient. A submersible pump is connected to a jet pipe at the outlet, utilizing the pressure difference to draw the photo-oxidation activating material from the storage section into the jet pipe and mix it with water, thus achieving immediate use of the material after mixing. On the one hand, this ensures that the photo-oxidation activating material can fully contact the water and exert its effect in the shortest possible time, greatly improving the timeliness and specificity of the treatment. The elimination of complicated pre-mixing operations saves time and reduces manpower, while also effectively preventing the mixture from losing its activity due to long-term storage. On the other hand, the distribution plate at the free end of the jet pipe and the several nozzles evenly distributed circumferentially can spray the mixed material into the water extremely evenly, resulting in a more comprehensive and balanced treatment effect, avoiding situations where the concentration is too high or too low in certain areas, thereby significantly improving the overall effectiveness of water treatment.

[0040] Furthermore, the end of the No. 1 discharge pipe near the jet pipe is a funnel-shaped opening.

[0041] The beneficial effects of this solution are as follows: In this technical solution, by setting the end of the discharge pipe near the jet pipe as a funnel shape, the shape of the funnel makes the opening at the end connected to the jet pipe larger. When the photo-oxidizing material is drawn into the jet pipe, the funnel shape facilitates the dispersion of the photo-oxidizing material in the water. Due to the larger opening of the funnel, the photo-oxidizing material can come into contact with water over a wider area after entering the jet pipe. This makes it easier for the photo-oxidizing material to be carried by the water flow and quickly dispersed in the water, thereby promoting the mixing of the photo-oxidizing material and water. In contrast, if the end of the discharge pipe connected to the jet pipe is a straight pipe, the photo-oxidizing material may concentrate in a smaller area when entering the jet pipe, resulting in uneven mixing.

[0042] The flared nozzle design allows the photo-oxidizing material to mix more evenly with water after entering the jet tube. Because the photo-oxidizing material enters the jet tube through a larger opening, it is impacted and agitated by the water flow, making it easier to diffuse in the water. This uniform mixing is crucial for processes requiring precise control of reaction conditions, improving reaction efficiency and quality. Furthermore, the flared nozzle reduces the likelihood of material buildup, minimizing the possibility of clogging, and facilitates cleaning and maintenance when clogging occurs, whereas straight tubes are prone to buildup and are more difficult to clean. Attached Figure Description

[0043] Figure 1 This is a flowchart of a method for treating black and odorous water bodies according to Embodiment 1 of the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of the mixing injection mechanism in this invention;

[0045] Figure 3 This is a schematic diagram of the structure in which the jet tube and the No. 1 feed tube are combined in the invention.

[0046] Figure 4 This is a three-dimensional diagram of the blade in the invention. Detailed Implementation

[0047] The following detailed description illustrates the specific implementation method:

[0048] The reference numerals in the accompanying drawings include: housing 1, No. 1 hopper 2, No. 1 discharge pipe 3, submersible pump 4, jet pipe 5, diverter plate 6, nozzle 7, water inlet 8, first cylindrical section 9, tapering section 10, second cylindrical section 11, expansion section 12, third cylindrical section 13, No. 1 check valve 14, No. 2 check valve 15, power component 16, rotating disk 17, power component mounting bracket 18, sealing cover 19, driving pulley 20, driven pulley 21, belt 22, rotating rod 23, blade 24, propeller plate 25, flow booster plate 26, baffle 27, first connecting section 28, second connecting section 29.

[0049] Example 1

[0050] like Figure 1 As shown, a method for treating black and odorous water bodies includes the following steps:

[0051] S1: Placement and preparation of the mixed injection mechanism; specifically, such as... Figure 2 As shown, the mixing and spraying mechanism includes a housing 1, a mixing unit and a material spraying unit. First, adjust the mixing unit to face upwards, and then place the mixing and spraying mechanism in the water.

[0052] like Figure 2 As shown, the material spraying unit includes a storage section and a spraying section.

[0053] like Figure 2 As shown, the storage section includes a first hopper 2, which has a ring-shaped structure and is bolted to the inside of the housing 1. The first hopper 2 contains photo-oxidation activating material, which consists of a photosensitizer, an oxidoreductase, and an oxygen storage material. The top of the first hopper 2 is connected to a first feed pipe, which is used to add the photo-oxidation activating material into the first hopper 2. The bottom of the first hopper 2 is connected to a first discharge pipe 3, which is used to transport the photo-oxidation activating material to the spraying section.

[0054] like Figure 2 and Figure 3 As shown, the jetting section includes a submersible pump 4 and a diverter plate 6. The submersible pump 4 is located within the annular ring of the first silo 2 and is bolted to the first silo 2. A jet pipe 5 is connected to the outlet of the submersible pump 4, which serves to transport water and the mixture. The jet pipe 5 consists of a first cylindrical section 9, a converging section 10, a second cylindrical section 11, an expanding section 12, and a third cylindrical section 13 connected in sequence. The first cylindrical section 9 is connected to the outlet of the submersible pump 4, and a first check valve 14 is installed on the first cylindrical section 9 to prevent backflow. The upper end of the first discharge pipe 3 is connected to the second cylindrical section 11, and a second check valve 15 is installed on the first discharge pipe 3 to control the conveying direction and flow rate of the material. The third cylindrical section 13 is installed on the diversion plate 6. The diversion plate 6 has an internal receiving cavity, and the third cylindrical section 13 is connected to the receiving cavity. Several nozzles 7 are evenly installed on the circumferential surface of the outer side of the diversion plate 6. The material in the receiving cavity can be sprayed into the water body through the nozzles 7. The right end of the first discharge pipe 3 is a flared mouth. The flared mouth is designed to facilitate the smooth intake and mixing of the material, and at the same time, to prevent the first discharge pipe 3 from becoming blocked. Several water inlet holes 8 are opened at the lower end of the shell 1, so that the water in the water body can smoothly enter the shell 1 and be pumped into the jet pipe 5 by the action of the submersible pump 4 to mix with the photo-oxidation activated material.

[0055] like Figure 2 and Figure 4As shown, the mixing unit includes a power unit 16 and a rotating disk 17. A power unit mounting bracket 18 is welded inside the housing 1 above the first hopper 2. The power unit 16 is bolted to the power unit mounting bracket 18. A sealing cover 19 is welded to the housing 1 above the power unit mounting bracket 18. The output shaft of the power unit 16 passes through the sealing cover 19 and is rotatably connected to it. A drive pulley 20 is mounted on the upper end of the output shaft of the power unit 16, located above the sealing cover 19. The rotating disk 17 is T-shaped and rotatably mounted on the outer side of the jet pipe 5. The lower end of the rotating disk 17 is rotatably mounted on the sealing cover 19, and the upper end of the rotating disk 17 extends above the sealing cover 19. A driven pulley 21 is mounted on the rotating disk 17 above the sealing cover 19. A belt 22 is fitted onto the drive pulley 20 and the driven pulley 21. The power unit 16 can drive the rotating disk 17 to rotate via the belt 22. The rotational speed of the power unit 16 is 0-20 RPM. Three rotating rods 23 are welded to the outer surface of the upper end of the rotating disk 17. The rotating rods 23 are evenly distributed around the circumference of the rotating disk 17. Each rotating rod 23 is equipped with a blade 24, which can drive the water flow and form an upward and outward flow field. Each blade 24 consists of a pusher plate 25, a lifter plate 26, and a baffle 27. The pusher plate 25 is bolted to the end of the rotating rod 23. The pusher plate 25 includes a first connecting section 28 and a second connecting section 29 connected in sequence. The two are integrally formed. The angle between the first connecting section 28 and the second connecting section 29 is 145°-155°, and the shape of the rotating rod 23 is adapted to the shape of the pusher plate 25. The lifter plate 26 is welded obliquely to the bottom of the pusher plate 25. The angle between the lifter plate 26 and the pusher plate 25 is 95°-100°. The baffle 27 is welded to the right end of the lifter plate 26 and the pusher plate 25. In this embodiment, the angle between the first connecting section 28 and the second connecting section 29 is 150°, and the angle between the booster plate 26 and the pusher plate 25 is 95°; the power component 16 is a waterproof servo motor with model number shj-swd60-450-48, and the speed of the power component 16 is 18RPM.

[0056] S2: The water is stirred to induce an upwelling flow. Specifically, the power unit 16 drives the rotating disk 17 to rotate, and the blades 24 rotate synchronously with the disk 17, causing the water to form an upward and outward flow field, i.e., an upwelling flow. The formation of the upwelling flow changes the stratification of the water, causing the water that was originally in an anaerobic or facultative state to gradually rise to the surface and undergo sufficient mass transfer with the air. This measure changes the original stratified oxygen gradient, significantly increases and homogenizes the dissolved oxygen content of the water, increases or restores the activity of aquatic microorganisms, improves the oxygen content of the water, and improves the redox reaction of the bottom sediment. Thus, it effectively activates the water and significantly increases its fluidity.

[0057] S3: Add photo-oxidation activating material to the water body; specifically, spray the photo-oxidation activating material into the water body through the material spraying unit, so that the photo-oxidation activating material is fully mixed with the water and then sprayed into the water body. The photo-oxidation activating material is evenly dispersed in the water body and fully contacts the pollutants in the water body.

[0058] S4: This process dissolves pollutants in the water and activates indigenous microorganisms in the sediment and water. First, the mixing unit agitates the water, altering its stratification and promoting circulation. This increases dissolved oxygen levels, enhances or restores the activity of aquatic microorganisms, and improves the oxygen content of the water and the progress of redox reactions in the sediment. Then, photo-oxidation activating materials come into contact with the water under natural sunlight, effectively combining photolysis and enzyme catalysis. This allows the water to efficiently absorb solar photons. Through electron transfer between redox enzymes and photosensitizers, highly active substances and a large number of •OH free radicals are formed, thereby dissolving pollutants in the water and activating active enzymes and indigenous microorganisms in the sediment and water. This significantly enhances the water's self-purification capacity. Furthermore, oxygen-storing materials can flow into the bottom of the water and gradually release oxygen-containing substances, further improving the oxygen content of the sediment and underlying water, significantly enhancing the water purification effect.

[0059] Example 2

[0060] Based on Embodiment 1, the storage unit also includes a second silo, located outside the shell 1 on the bank of the water body. A second discharge pipe is installed at the bottom of the second silo, and a third check valve is installed on the second discharge pipe. A three-way pipe is connected to the first cylindrical section 9, with one end connected to the second discharge pipe and the other end connected to the first discharge pipe 3. Due to the inclusion of the second silo, this technical solution provides stronger assurance and flexibility for the entire system's material supply. When the material in the first silo 2 is gradually depleted during operation, the third check valve can be easily opened. At this time, the second silo can quickly play its crucial role as a supplementary silo, seamlessly continuing to stably supply material to the system. This process not only ensures the continuity of water purification operations and avoids interruptions due to material shortages, but also greatly improves work efficiency.

[0061] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for treating black and odorous water bodies, characterized in that: Includes the following steps: S1: Placement and preparation of the mixed injection mechanism; S2: Stirring the water body to induce an upwelling flow; S3: Add photo-oxidation activating materials to the water body; S4: Dissolves pollutants in water and activates indigenous microorganisms in bottom sediment and water; The mixing and spraying mechanism in S1 includes a mixing unit and a material spraying unit. The mixing unit is used to stir the water and cause the water to form an upwelling flow. The material spraying unit is used to spray photo-oxidation activated materials into the water. In S2, a mixing unit is used to stir the water. The mixing unit includes a power unit and a rotating disk. The power unit can drive the rotating disk to rotate. Several rotating rods are evenly distributed around the circumference of the rotating disk. Each rotating rod has a blade installed at its free end. As the blade rotates with the rotating disk, it can drive the water to flow and cause the water to form an upwelling flow. In S3, photo-oxidation activating material is added to the water body through a material injection unit. The material injection unit includes a storage section and an injection section. The photo-oxidation activating material is stored in the storage section, and the injection section can mix the photo-oxidation activating material with water and then spray it into the water body. Each blade consists of a thruster, a lifter, and a baffle. The thruster is detachably connected to the rotating rod. The lifter is installed at an angle at the bottom of the thruster. The baffle is fixedly connected between the lifter and the thruster and is located on the side close to the rotating disk. The propeller plate includes a first connecting section and a second connecting section connected in sequence, with an angle of 145°-155° between the first connecting section and the second connecting section; the shape of the rotating rod is adapted to the shape of the propeller plate, and the angle between the riser plate and the propeller plate is 95°-100°. Photo-activated materials consist of photosensitizers, oxidoreductases, and oxygen storage materials.

2. The method for treating black and odorous water bodies according to claim 1, characterized in that: The rotational speed of the power component is 0-20 RPM.

3. The method for treating black and odorous water bodies according to claim 1, characterized in that: The jetting section includes a submersible pump, and a jet pipe is installed at the outlet of the submersible pump. The jet pipe can draw the photo-oxidation activated material stored in the storage section into the jet pipe and mix it with water. A distribution plate is installed at the free end of the jet pipe. The distribution plate has a receiving cavity inside. The jet pipe is connected to the receiving cavity. Several nozzles are evenly distributed around the outer side of the distribution plate. The material in the receiving cavity can be sprayed into the water body through the nozzles.

4. The method for treating black and odorous water bodies according to claim 3, characterized in that: The end of the No. 1 discharge pipe near the jet pipe is a funnel shape.

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