Water circulation combined electro-catalysis device for preventing and controlling cyanobacterial bloom in small and micro water body

Abstract

The utility model discloses a water circulation combined electro-catalysis device for preventing and controlling cyanobacterial bloom in a small and micro water body. The water circulation combined electro-catalysis device comprises a water storage tank, a submersible pump, a ruthenium iridium titanium electrode, a solar cell panel, a medicine feeder and a filter screen, wherein the water storage tank and the submersible pump are used for realizing water circulation; a water storage tank in the device is provided with a water inlet and an overflow port, the water inlet is connected with a submersible pump through a water pipe, and the submersible pump sets the operation power on the basis that the amount of pumped water in three days at least reaches the whole volume of a small and micro water body. The electrified ruthenium-iridium-titanium electrode in the water storage tank catalyzes a drug to generate free radicals with strong oxidizing property to inactivate algae in the water storage tank, then algae water falls back to the small and micro water body through the overflow port, and circulation is performed, so that the flowing of the small and micro water body is realized, the density of algae cells in the water body is also reduced, and the water quality is improved. Therefore, cyanobacterial blooms in small and micro water bodies are prevented and controlled, and the cyanobacterial blooms are prevented from worsening towards heavy water blooms.

Description

Technical Field

[0001] The utility model relates to the technical field of prevention and control of cyanobacteria blooms in small and micro water bodies, and in particular to a water circulation-coupled electrocatalytic device for preventing and controlling cyanobacteria blooms in small and micro water bodies, which is used to prevent and control mild and moderate cyanobacteria blooms in small and micro water bodies from deteriorating into severe blooms. Background Art

[0002] In recent years, the use of hydrodynamic disturbance and electrocatalytic oxidation to inhibit algae growth has attracted widespread attention. This is because under medium and high intensity hydrodynamic disturbances, the morphology of algae cells will be significantly damaged, and the absorption and utilization efficiency of nutrients will be greatly reduced. Electrocatalysis relies on the direct oxidation of electrodes after power is applied and the activation of electrolytes to generate OH and The indirect oxidation of strong oxidative free radicals can remove cyanobacteria cells, which has the advantages of being green, environmentally friendly, non-toxic and harmless.

[0003] Therefore, in order to overcome the many disadvantages of treating cyanobacteria blooms after they break out, it is necessary to combine hydrodynamic disturbance with electrocatalytic technology to provide a water circulation-coupled electrocatalytic device that can effectively prevent and control cyanobacteria blooms in small water bodies, especially to prevent mild and moderate cyanobacteria blooms from escalating and deteriorating into severe cyanobacteria blooms. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a device that can effectively prevent and control the cyanobacteria bloom in small water bodies before it breaks out seriously, and curb the deterioration of cyanobacteria bloom from mild or moderate to severe bloom.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A water-circulating electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-sized water bodies is provided, comprising a water storage tank, a submersible pump, a ruthenium-iridium-titanium electrode, a solar panel, a drug doser, and a filter. The water storage tank includes a water inlet and an overflow port, the water inlet being connected to the outlet of the submersible pump via an inlet pipe; the overflow port is connected to an outlet pipe extending above the micro-sized water body, allowing algae-containing water in the water storage tank to fall back into the micro-sized water body; the ruthenium-iridium-titanium electrode comprises positive and negative electrodes, the positive and negative electrode plates being identical in shape, but the positive electrode plate is a ruthenium-iridium electrode plate, i.e., a pure titanium plate coated with ruthenium oxide and iridium oxide, while the negative electrode plate is a pure titanium plate; the ruthenium-iridium-titanium electrode is connected to the solar panel via a wire to obtain the electrical energy required for the electrocatalytic reaction; the filter is used to filter macromolecular pollutants in the water body to prevent them from damaging the ruthenium-iridium-titanium electrode; the filter can be removed periodically for cleaning; and the drug doser regularly and quantitatively adds drugs during operation to promote the electrocatalytic reaction.

[0007] Preferably, the water tank base is provided with a retractable support rod, the top of the water tank is provided with a waterproof cover, the bottom is provided with a sewage outlet, and the water tank is provided with multiple groups of limit slots, on which multiple groups of ruthenium iridium titanium electrodes can be placed as needed.

[0008] Preferably, the ruthenium, iridium and titanium electrodes are kept at a distance of 4 cm and placed together in the limit slot below the overflow port of the water storage tank to ensure that the water in the water storage tank can completely immerse the main body of the ruthenium, iridium and titanium electrodes.

[0009] Preferably, the water outlet of the external water outlet pipe is far away from the water inlet of the submersible pump, and by adjusting the height of the retractable support rod, the vertical height of the water outlet of the water outlet pipe from the water surface of the small water body can be not less than 1.5m;

[0010] Preferably, the submersible pump is placed at a depth that is the surface water rich in cyanobacteria.

[0011] Preferably, the solar panel has a normal output voltage of 4V.

[0012] Preferably, the drug added by the drug doser is sodium persulfate.

[0013] Preferably, the power setting of the submersible pump is based on the standard that the amount of water pumped in one day is at least 1 / 3 of the volume of the small water body, that is, the amount of water pumped by the submersible pump in one day is at least 1 / 3 of the volume of the small water body, and the amount of water pumped by the submersible pump in three days is at least the entire volume of the small water body.

[0014] In summary, the device of this utility model uses water circulation as a generator of hydrodynamic disturbances, and at the same time combines it with electrocatalytic technology to effectively prevent and control cyanobacterial blooms in small water bodies, preventing cyanobacterial blooms from worsening from mild or moderate to severe levels. The device of this utility model has the following specific beneficial effects:

[0015] 1. When working, this device can use water circulation to mobilize the fluidity of small and micro water bodies and improve the poor fluidity of small and micro water bodies.

[0016] 2. The submersible pump in this device is placed in the surface water of the small water body. During daytime operation, it can extract a large amount of cyanobacteria floating on the water surface due to phototaxis into the water storage tank for treatment, thereby improving the efficiency of electrocatalysis. At the same time, the water can be effectively disturbed by falling back into the small water body through the outlet at a height of not less than 1.5m from the water surface. This overcomes the traditional method of using a stirrer to stir the water body. Although it can form hydrodynamic disturbance, it is easy to stir the bottom mud, resulting in the release of nutrients and promoting the growth of algae.

[0017] 3. The device uses ruthenium-iridium-titanium electrodes with good corrosion resistance and high current efficiency, which is suitable for long-term operation of the device.

[0018] 4. The output voltage of the solar panel used in this device is 4V. According to the inventor's previous extensive research work, this voltage has a good effect on the prevention and control of cyanobacteria blooms.

[0019] 5. The sodium persulfate added in the electrocatalytic process of this device can produce ·OH and This method can inactivate blue algae and is more environmentally friendly than traditional chemical methods of algae control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for describing the specific embodiments:

[0021] Figure 1 : A schematic structural diagram of a water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro water bodies according to the present invention;

[0022] Figure 2 : A cross-sectional view of a water circulation combined electrocatalytic device for preventing and controlling cyanobacterial blooms in small water bodies described in the present invention.

[0023] The reference numerals are as follows:

[0024] 1. Water storage tank; 11. Telescopic support rod; 12. Water inlet; 13. Water inlet pipe; 14. Overflow port; 15. Water outlet pipe; 16. Water outlet; 17. Sewage outlet; 18. Waterproof cover;

[0025] 2. Submersible pump;

[0026] 3. Ruthenium-iridium-titanium electrode;

[0027] 4. Filter

[0028] 5. Drug dosing device;

[0029] 6. Solar panels; 61. Wires; DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example

[0032] The utility model provides a water circulation combined electrocatalytic device for preventing and controlling blue algae blooms in small water bodies. The specific device schematic diagram is as follows Figure 1 and Figure 2 As shown, it includes a water storage tank 1 and a submersible pump 2 required for water circulation, a ruthenium-iridium-titanium electrode 3 for electrocatalysis, a solar panel 6 and a drug doser 5, and a filter 4 for filtering macromolecular pollutants.

[0033] refer to Figure 1 The water storage tank 1 is equipped with an inlet 12 and an overflow 14. The openings of the inlet 12 and overflow 14 are located on the front and side of the water storage tank 1. The inlet 12 is connected to the submersible pump 2 via an inlet pipe 13. During actual installation, ensure that the submersible pump's head exceeds the vertical height between the inlet 12 and the submersible pump 2. The overflow 14 is connected to an outlet pipe 15 that extends to the far end of the micro-water body. In this case, the necessary parameters such as the length and direction of the outlet pipe 15 can be reasonably designed based on the width of the micro-water body. In addition, the outlet 16 is at least 1.5 meters above the water surface of the micro-water body.

[0034] Furthermore, the four support rods 11 of the water storage tank 1 can be telescopically adjusted to ensure that the water outlet is not less than 1.5m from the water surface; at the same time, the water storage tank 1 has a sewage outlet 17 to facilitate the discharge of internal dirty washing water when cleaning the device; the waterproof cover 18 can not only prevent rainwater from entering, but also avoid sunlight from shining on the interior of the device for a long time, thereby extending the service life.

[0035] Furthermore, a submersible pump 2 connected to the water inlet 12 is placed in the surface water of the small water body. At the same time, the power of the submersible pump 2 is set to pump 1 / 3 of the volume of the small water body in one day. That is, the amount of water pumped by the submersible pump 2 in one day is 1 / 3 of the volume of the small water body, and the amount of water pumped by the submersible pump 2 in three days reaches the entire volume of the small water body.

[0036] refer to Figure 2 The ruthenium-iridium-titanium electrode 3 is composed of two positive and negative electrode plates. The two electrode plates are identical in shape, but the positive electrode plate is a ruthenium-iridium electrode plate, which is a pure titanium plate coated with ruthenium oxide and iridium oxide materials. The negative electrode plate is a pure titanium plate. The two electrode plates are fixed by internal limiters in the water storage tank 1, with a spacing of 4 cm. Based on the internal volume of the water storage tank 1, this embodiment provides three sets of limit slots and contains three sets of ruthenium-iridium-titanium electrodes 3 to improve electrocatalytic efficiency.

[0037] Furthermore, the ruthenium-iridium-titanium electrode 3 is fixed inside the water storage tank 1 below the overflow port 14. This ensures that the water in the water storage tank 1 completely submerges the ruthenium-iridium-titanium electrode 3 during operation, thereby improving electrocatalytic efficiency. The positive and negative poles of the solar panel 6 are connected to the positive and negative poles of the ruthenium-iridium-titanium electrode 3, respectively, via wires 61, maintaining a stable 4V output voltage. Furthermore, a chemical doser 5 regularly adds chemicals such as sodium persulfate during operation to maintain the electrolyte concentration in the water storage tank 1 and promote the electrocatalytic reaction.

[0038] In summary, the use process of the device of this utility model is as follows:

[0039] During daytime operation, the submersible pump 2 is turned on to allow the micro-water body to flow into the water storage tank 1. When the water in the water storage tank 1 fills the overflow port 14, the water flows down the outlet pipe 15 to the outlet 16 at the far end of the micro-water body at a height of ≥1.5m. During this time, the ruthenium iridium titanium electrode 3 in the water storage tank 1 is applied with a working voltage of 4V by the solar panel 6, and the sodium persulfate injected by the catalytic chemical doser 5 produces a strong oxidizing ·OH and This process inactivates the cyanobacteria in the water storage tank 1. This cycle repeats itself, and the water with mild or moderate cyanobacterial blooms is treated by the ruthenium-iridium-titanium electrode catalysis and then falls back to the far end of the micro-water body. This not only inactivates the cyanobacterial cells but also promotes the flow within the micro-water body, thereby effectively preventing and controlling cyanobacterial blooms and preventing mild or moderate cyanobacterial blooms from escalating to severe cyanobacterial blooms.

[0040] When the device needs to be cleaned or repaired, the waterproof cover 18 can be opened to clean the interior or replace the electrodes and other necessary operations. After cleaning, the drain port is opened to drain the dirty washing water in the water storage tank 1.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A water circulation combined electrocatalytic device for preventing and controlling blue algae blooms in micro-water bodies, comprising a water storage tank (1) and a submersible pump (2) required for water circulation, a ruthenium-iridium-titanium electrode (3) for realizing electrocatalysis, a solar cell panel (6) and a drug doser (5), and a filter screen (4) with a filtering effect; the water storage tank (1) comprises a water inlet (12) and an overflow port (14); the water inlet (12) is connected to the submersible pump (2) through a water inlet pipe (13), so that algae water in the micro-water body enters the water storage tank (1); the overflow port (14) is externally connected to a water outlet pipe (15) and extends to the top of the micro-water body, so that the water storage tank The algae water in (1) falls back to the micro-water body; the ruthenium-iridium-titanium electrode (3) is composed of a positive and negative electrode, and the positive and negative electrode plates are of the same shape, but the positive electrode plate is a ruthenium-iridium electrode plate, that is, a pure titanium plate coated with ruthenium oxide and iridium oxide materials, and the negative electrode plate is a pure titanium plate; the ruthenium-iridium-titanium electrode (3) is connected to the solar cell panel (6) through a wire (61) to obtain the electrical energy required for the electrocatalytic reaction; the filter (4) is used to filter macromolecular pollutants in the water body to prevent them from damaging the ruthenium-iridium-titanium electrode; the drug feeder (5) feeds drugs at regular intervals and in fixed quantities when the device is working to promote the electrocatalytic reaction.

2. The water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-water bodies according to claim 1, characterized in that: The base of the water storage tank (1) is provided with four retractable support rods (11), the bottom of the water storage tank is provided with a sewage outlet (17), the top is provided with a waterproof cover (18), and the water storage tank is provided with multiple groups of limit slots, and multiple groups of ruthenium, iridium and titanium positive and negative electrode plates can be placed according to needs.

3. The water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-water bodies according to claim 1, characterized in that: The two electrodes of the ruthenium-iridium-titanium electrode (3) are kept at a distance of 4 cm and are placed together in a limit slot below the overflow port (14) of the water storage tank (1), ensuring that the water in the water storage tank (1) can completely immerse the main body of the ruthenium-iridium-titanium electrode (3).

4. The water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-water bodies according to claim 1, characterized in that: The water outlet (16) of the water outlet pipe (15) is far away from the water inlet of the submersible pump (2), and by adjusting the height of the telescopic support rod (11), the vertical height of the water outlet (16) of the water outlet pipe from the water surface of the small water body is greater than 1.5m.

5. The water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-water bodies according to claim 1, characterized in that: The submersible pump (2) is placed in surface water in a small micro-water body where blue algae are enriched.

6. The water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-water bodies according to claim 1, characterized in that: The solar cell panel (6) has a normal output voltage of 4V.

7. The water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-water bodies according to claim 1, characterized in that: The drug added by the drug doser (5) is sodium persulfate.

8. The water circulation-coupled electrocatalytic device for preventing and controlling cyanobacterial blooms in small and micro-water bodies according to claim 1, characterized in that: The power setting of the submersible pump (2) is based on the standard that the amount of water pumped per day is at least 1 / 3 of the total volume of the small and micro water body, that is, the amount of water pumped by the submersible pump (2) per day is at least 1 / 3 of the volume of the small and micro water body, and the amount of water pumped by the submersible pump (2) in three days is at least the entire volume of the small and micro water body.

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