Movable water body purification device and method capable of automatically operating

Abstract

The invention relates to a mobile water body purification device capable of automatically operating. The mobile water body purification device comprises an ozone generation module, a dissolved air tank, an air compressor, a suspension bottom plate, a battery module, a central control module and an ozone aeration module, the device is adopted to execute the following purification method: an industrial camera finds a nearby target water area, gas-dissolved ozone water continuously introduced into an activation aeration disc is released by the activation aeration disc, gas-liquid two-phase rapid separation is performed to form a large number of microbubbles with extremely small particle sizes, the mass transfer reaction area is extremely large, and the purification effect is good. The algae density detection mechanism is arranged in the water body to be treated, substances can be efficiently transferred and subjected to oxidation reaction with algae and pollutants in the water body, meanwhile, the retention time in the water body to be treated can be greatly prolonged, the algae and the pollutants in the water body to be treated can be rapidly removed, and after the algae density fed back by the algae density detection mechanism is lower than a set threshold value, the algae density detection mechanism is started. The next water area to be treated is searched by the industrial camera, the automatic operation of the device is realized, the process is spontaneously completed by the device, and the complete automatic control is realized.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to a mobile water purification device capable of automatic operation. Background Art

[0002] Algal bloom prevention and control in lakes and reservoirs and water pollution control are the key and difficult issues faced by my country in the process of promoting water pollution prevention and control in the new era. my country has many lakes and reservoirs, and the water in the reservoir area has poor circulation. In addition, the continuous influx of nutrient exogenous pollutants such as agricultural fertilizers makes it very easy for algal blooms to break out in summer, causing blockage of water supply systems, odor in water bodies, fish deaths, degradation of aquatic vegetation, and production of toxins, which poses a great threat to people's drinking water safety and life and health.

[0003] At present, the difficulties in preventing and controlling algal blooms and treating water pollution in various lakes and reservoirs in my country are mainly reflected in two points: First, the area of ​​lakes and reservoirs is vast, and the volume of water to be treated is extremely large. Technologies such as flocculation sedimentation and hydraulic control that require shore construction are difficult to radiate the entire area. Second, the outbreak of algal blooms in lakes and reservoirs has the characteristics of rapid development and large index levels. After the temperature rises in summer, the algae density can increase to 8 to 9 orders of magnitude in a short period of time, accompanied by phenomena such as water quality deterioration. In-situ algae control technologies such as biological manipulation have a long effective period and cannot suppress outbreaks in a short period of time. Chemical algae control technology also has problems such as high manpower investment costs and conventional algaecides that easily cause secondary pollution.

[0004] Ozone is an environmentally friendly oxidant with extremely high redox potential and bactericidal properties in water. Its oxidation product is mainly oxygen, without secondary pollution. Based on the above characteristics, ozone has great potential for application in the prevention and control of algal blooms in lakes and reservoirs and the treatment of water pollution. However, there are still technical difficulties in the current engineering application of ozone. One is that due to the limitations of the ozone preparation process, most ozone oxidation equipment needs to be built on the shore. The second is that during the in-situ release of ozone on the water surface, under the influence of buoyancy, the contact time with the water body is short, the oxidation reaction is incomplete, and the purification effect is poor. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a mobile water purification device and method that can be automatically operated to solve the above problems.

[0006] The present invention provides the following technical solutions:

[0007] A mobile water purification device capable of automatic operation comprises an ozone generating module, an air dissolving tank, an air compressor, a suspended bottom plate, a battery module, a central control module and an ozone aeration module; the upper portion of the suspended bottom plate is fixedly supported by the ozone generating module, the central control module, the air dissolving tank and the battery module; suspended pipes are installed on both sides of the lower portion of the suspended bottom plate; a freely rotatable industrial camera is provided at the top front end of the ozone generating module; the front end of the ozone generating module is connected to the central control module; the central control module has a built-in PLC control system, and an algae density detection mechanism is provided at the lower portion of the central control module, the algae density detection mechanism extends to the lower portion of the suspended bottom plate and is fixed on the suspended bottom plate; the air dissolving tank is fixed to the rear side of the ozone generating module, and a large amount of fillers are placed in the tank; The generation module is provided with an ozone output pipe, which is connected to the bottom end of the side wall of the dissolved air tank after passing through the air compressor; the bottom of the dissolved air tank is provided with a dissolved ozone water output pipe, which is built into the suspended bottom plate and extends from both sides of the suspended bottom plate; the ozone aeration module is composed of three connecting rods, an ozone air distribution ring and an activated aeration disk; the bottom end of the dissolved ozone water output pipe extending from both sides of the suspended bottom plate is connected to the head of the three connecting rods of the ozone aeration module, and the tail of the three connecting rods is connected to the semicircular ozone air distribution ring, the ozone air distribution ring and the connecting rod are hollow structures, and the outer side of the ozone air distribution ring is provided with a plurality of dense small holes, and is connected to the activated aeration disk; the battery module contains a plurality of battery blocks, which are connected to the ozone generation module, the industrial camera and the air compressor through the central control module for power supply.

[0008] Furthermore, the ozone generating module is provided with a plurality of ozone electrolysis reaction units, each reaction unit clamps a bipolar membrane in the body of the reaction unit in the form of a flange connection, the bipolar membrane has anode and cathode grooves on both sides, and ruthenium-iridium-plated titanium electrodes are inserted into the grooves, and each reaction unit is connected to the battery module in parallel through electrode wires.

[0009] Furthermore, an ozone output pipe and a hydrogen exhaust pipe are also provided in the ozone generating module, which are used to collect the ozone generated by the anode and exhaust the hydrogen generated by the cathode.

[0010] Furthermore, the activated aeration disk is made of specially made environmentally friendly Ag3PO4 / NiAl-LDH material loaded on ceramic and then fired.

[0011] Furthermore, a water pump is provided on the side wall of the gas dissolving tank. The water pump is located at the other end of the ozone output pipe at the inlet of the gas dissolving tank side wall. The water pump is connected to a water inlet pipe which extends into the water to replenish the water in the gas dissolving tank.

[0012] Furthermore, a radar is provided at the front end of the upper part of the suspended base plate, and connection circuits of various modules, an anchor drive motor and a propeller drive motor are provided inside the suspended base plate; an anchor is installed in the middle area of ​​the lower part of the suspended base plate and is connected to the anchor drive motor through a rope; a propeller is installed in the suspended tube, and the propeller drive motor is used to drive the propeller.

[0013] Furthermore, a CPL polarizing filter capable of shielding water surface reflection is installed at the front end of the industrial camera; a display screen is arranged on the outer side of the central control module for parameter setting and viewing.

[0014] Furthermore, a solar photovoltaic panel is placed on the top of the ozone generating module, and a detachable rear cover is provided at the rear end; the battery module is connected to the solar photovoltaic panel, and is connected to the radar, water pump, propeller drive motor, and anchor drive motor through the central control module for power supply.

[0015] The present invention also discloses a mobile water purification method capable of automatic operation, which uses the aforementioned mobile water purification device capable of automatic operation to implement the following steps:

[0016] Step S1: put into use in the target lake or reservoir, the industrial camera randomly locks on a specific water area, transmits the real water body image corrected by the CPL polarization filter to the central control module, and the central control module dispatches the propeller drive motor to move the device to the locked specific water area, during which the radar continues to operate to prevent collision;

[0017] Step S2: The algae density detection mechanism feeds back the algae density data of the water area to the central control module. After repeated processing, a data set corresponding to the water image of the target lake or reservoir and the algae density is formed. This data set is used to perform secondary training and correction on the universal recognition model preset in the central control module to improve the accuracy of the judgment of the algae bloom pollution degree of the target lake or reservoir.

[0018] Step S3: The industrial camera searches for the target water area with the highest pollution level nearby, and the central control module dispatches the propeller drive motor to move the device to the locked target water area, and then dispatches the anchor drive motor to lower the anchor to fix the device in the target water area;

[0019] Step S4: The device officially starts water purification. Each reaction unit inside the ozone generating module contains an anode tank and a cathode tank. The tanks are filled with deionized water doped with a small amount of sodium sulfate. After power is turned on, the reaction in the anode tank and the cathode tank is as follows:

[0020]

[0021] Step S5: The ozone gas generated in the tank is transported to the ozone output pipe, and then pressurized by the air compressor and sent to the dissolved gas tank. Under the action of the air pressure in the tank, the ozone gas is dissolved into the liquid through the solid-liquid interface between the filler and the liquid in the tank to form supersaturated pressurized dissolved ozone water, which is then transported to the ozone aeration module through the dissolved ozone water output pipe. During the process, the water pump on the other side of the dissolved gas tank continuously extracts water in the treatment area and sends it into the tank to keep the water volume in the tank constant.

[0022] Step S6: After the activated aeration disk is released, the ambient pressure suddenly decreases, and the gas-liquid phases are quickly separated to form a large number of microbubbles with extremely small particle sizes. At this time, the dissolved air contains a large amount of OH· and O2 ·- and 1 O2, OH·, O2 ·- and 1 O2 and other ROS are mixed in the microbubble liquid film, and the mass transfer reaction area is extremely large, which can efficiently realize material transfer and undergo oxidation reactions with algae and pollutants in the water. At the same time, because the microbubble particles are extremely small, they exist in the water in a slowly rising suspended state, which can greatly increase the residence time in the water to be treated, thereby achieving rapid removal of algae and pollutants in the water to be treated.

[0023] Step S7: When the algae density fed back by the algae density detection mechanism is lower than the set threshold, the anchor drive motor is dispatched to recover the anchor, and the next water area to be treated is searched by relying on the industrial camera to realize the automatic operation of the device.

[0024] Further, the reactions occurring in the aeration plate are as follows:

[0025] M n+ + O3 +H + → M (n+1)+ + OH· + O2 (Formula 1)

[0026] M n+ + OH → M (n+1)+ + OH - (Formula 2)

[0027] O3 + OH· → O2 + HO2· (Formula 3)

[0028]

[0029] M (n+1)+ + HO2· + OH - → M n+ + H2O + O2 (Formula 6)

[0030] When the water body is weakly acidic: M-OH+H + →M-OH2 + (Formula 7)

[0031] When the water is weakly alkaline: M-OH+OH - →MO - +H2O(Formula 8)

[0032] M-OH2 + + O3 → M-OH + + HO3· (Formula 9)

[0033] M-OH + + O3 → M-HO2 - + O2 (Formula 10)

[0034] M-HO2 - + O3 → M-O2 ·- + HO3· (Formula 11)

[0035] M-OH + + H2O → M-OH2 + + OH· (Formula 12)

[0036] HO3· → O2 + OH· (Formula 13)

[0037] HO3 · → H + + O3 - (Formula 14)

[0038] O3· - + H2O → OH· + O2 + OH - (Formula 15)

[0039] O3· - + OH· → HO2· + O2 ·- (Formula 16)

[0040] O2 ·- + 2H2O → 1 O2 + H2O2 + 2OH - (Formula 17)

[0041] O2 ·- + OH → 1 O2 + OH - (Formula 18);

[0042] In the tiny pores of the activated aeration plate, the dissolved ozone water and the aeration plate material have a large contact reaction area. When they first come into contact, ozone reacts with metal ions, activating and decomposing to generate OH·, and the metal ions enter the high-valent stage (Formula 1). During the process, a small portion of OH· continues to react with metal ions and is consumed (Formulas 2 to 4). At the same time, as more and more divalent metal ions are oxidized to trivalent, the metal ions need to be reduced to divalent by reduction to stabilize the crystal framework (Formulas 5 and 6). When the solution pH is <pH PZC When the solution pH>pH PZC When the amount of variable valence metal is relatively limited, the formation of ROS in the LDH-catalyzed ozone oxidation process tends to be the interaction between ozone and surface hydroxyl groups; M-OH on the catalyst surface is protonated, but M-OH2 + Very unstable, can be converted into M-OH + 、M-HO2 - and M-O2 ·- , and continuously reacts with O3 to generate HO3·; at the same time, according to equations 9 to 12, M-OH· + Can be reconverted into M-OH2 + , while releasing OH·; the HO3· generated by the above chain reaction will further form OH· and O2 ·- (Formula 13 to Formula 16); 1 O2 is composed of O2 ·- Produced by reaction with H2O or OH· (Equation 17 and Equation 18).

[0043] The present invention has the following beneficial technical effects:

[0044] First, the industrial camera equipped with a CPL polarizer can shield the reflection of the water surface and input the real color state of the water surface in the surrounding area to the central control module. The image recognition algorithm of the central control module calculates and locates the seriously polluted area in the water area in real time. The central control module mobilizes the propeller to move the device to the area to carry out water purification. The algae density detection device provides real-time feedback on the regional water quality, and moves to the next location when it is lower than the set threshold. This process is completed spontaneously by the device without external intervention, achieving complete automatic control and greatly reducing the labor cost of governance.

[0045] Secondly, through the efficient catalysis of the ruthenium-iridium-plated titanium electrode (Ti / RuO2-IrO2) and the efficient proton transfer of the bipolar membrane, high-quality ozone can be produced at a higher yield using the low-voltage direct current applied by a mobile power supply; the ozone is compressed by the dissolved air tank to form supersaturated pressurized dissolved ozone water, which will form microbubbles with extremely small particle sizes after being released into the lake water at normal pressure. The microbubbles are in a slowly rising suspended state in the water, which greatly increases the residence time of the microbubbles in the water and enhances the treatment effect. The dissolved ozone water will be instantly activated when passing through a specially made activated aeration plate, converting the ozone into reactive oxygen species (ROS) with stronger oxidizing ability, greatly improving the oxidation and removal effect of algae and pollutants. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a front view of a mobile water purification device capable of automatic operation according to the present invention;

[0047] Figure 2 It is a side view of a mobile water purification device capable of automatic operation according to the present invention;

[0048] Figure 3 It is a top view of a mobile water purification device capable of automatic operation according to the present invention;

[0049] Figure 4 It is a bottom view of a mobile water purification device capable of automatic operation according to the present invention;

[0050] Figure 5 It is a front structural schematic diagram of a mobile water purification device capable of automatic operation according to the present invention;

[0051] Figure 6 It is a schematic diagram of the bottom structure of a mobile water purification device capable of automatic operation according to the present invention;

[0052] Figure 7 This is a schematic diagram of the structure of an ozone generating module of a mobile water purification device that can be automatically operated according to the present invention;

[0053] Figure 8 The present invention Figure 7 An exploded view of a group of ozone electrolysis reaction units at A in the middle;

[0054] Fig. 9 It is an exploded view of a mobile water purification device that can be automatically operated according to the present invention.

[0055] The reference numerals in the figure are:

[0056] 1. Ozone generating module; 2. Dissolved gas tank; 3. Suspended bottom plate; 4. Battery module; 5. Central control module; 6. Connecting rod; 7. Ozone distribution ring; 8. Activated aeration plate; 9. Suspended tube; 10. Solar photovoltaic panel; 11. Ozone output pipe; 12. Hydrogen discharge pipe; 13. Dissolved gas ozone water output pipe; 14. Rope; 15. Anchor; 16. Propeller; 17. Radar; 18. Water inlet pipe; 19. Algae density detection mechanism; 20. Propeller drive motor; 21. Anchor drive motor; 22. Air compressor; 23. Water pump; 24. Rear cover; 25. Battery block; 26. Bipolar membrane; 27. Cathode plate; 28. Cathode tank; 29. ​​Anode plate; 30. Anode tank; 31. Industrial camera. DETAILED DESCRIPTION

[0057] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0058] Example

[0059] A mobile water purification device capable of automatic operation comprises an ozone generating module 1, an air dissolving tank 2, a suspended bottom plate 3, a suspended pipe 9, an anchor 15, an industrial camera 31, a battery module 4, a central control module 5, and an ozone aeration module.

[0060] The ozone generating module 1 is fixed on the suspended bottom plate 3, the front end is connected to the central control module 5, the solar photovoltaic panel 10 is placed on the top, and a detachable rear cover 24 is provided at the rear end to achieve closed protection. A plurality of ozone electrolysis reaction units are arranged in the ozone generating module 1, and each reaction unit clamps a bipolar membrane 26 in the body of the reaction unit in the form of a flange connection. The two sides of the bipolar membrane are cathode grooves 28 and anode grooves 30, and titanium electrodes (Ti / RuO2-IrO2) coated with ruthenium and iridium are inserted into the grooves. Each reaction unit is connected to the battery module 4 in parallel through electrode lines, and each reaction unit is provided with an ozone output pipe 11 and a hydrogen exhaust pipe 12 for collecting ozone generated at the anode and exhausting hydrogen generated at the cathode.

[0061] The dissolved gas tank 2 is fixed to the rear side of the upper part of the suspended bottom plate 3, and a large amount of fillers are placed in the tank. The ozone output pipe 11 of the ozone generating module 1 is connected to the bottom of the dissolved gas tank 2 after passing through the air compressor 22. A water pump 23 is arranged on the other side of the dissolved gas tank 2, and the water inlet pipe 18 is connected to the water to replenish the water in the dissolved gas tank. A dissolved gas ozone water output pipe 13 is connected to the bottom of the tank body, which is built into the suspended bottom plate 3, extends from both sides of the bottom plate, and is connected to the ozone aeration module.

[0062] The upper part of the suspended bottom plate 3 carries and fixes the ozone generating module 1, the dissolved gas tank 2, the air compressor 22, the water pump 23, the industrial camera 31, the battery module 4, the radar 17, the central control module 5, the built-in circuit, the dissolved gas ozone water output pipe 13 and other pipelines, and the anchor drive motor 21 and the propeller drive motor 20. The lower side is equipped with a suspended pipe 9, and the propeller 16 for providing power is installed in the pipe. The anchor 15 is installed in the lower middle area, and is connected to the anchor drive motor 21 through a rope 14.

[0063] A freely rotatable industrial camera 31 is arranged on the top of the device of the present invention, a CPL polarizing filter capable of shielding water surface reflection is installed at the front end of the industrial camera 31 , and the industrial camera 31 is connected to the battery module 4 via the central control module 5 .

[0064] The battery module 4 contains a plurality of battery blocks 25, which are connected to the solar photovoltaic panel 10 on the top of the ozone generating module 1, and are connected to the radar 17, the ozone generating module 1, the air compressor 22, the water pump 23, the propeller drive motor 20, and the anchor drive motor 21 through the central control module 5 for power supply.

[0065] The central control module 5 is located at the front end of the ozone generating module 1, with a built-in PLC control system and a display screen on the outside for parameter setting and viewing. An algae density detection mechanism 19 is provided at the bottom of the central control module 5, extending to the bottom of the suspension bottom plate 3 and fixed on the suspension bottom plate 3. The anchor drive motor 21, the propeller drive motor 20, the water pump 23, the air compressor 22, and the ozone generating module electrode line are connected to the battery module 4 through the central control module 5.

[0066] The ozone aeration module is composed of three connecting rods 6, an ozone air distribution ring 7, and an activated aeration disk 8. The bottom end of the dissolved ozone water output pipe 13 extending from the suspended bottom plate 3 is connected to the three connecting rods 6. The tails of the three connecting rods 6 are connected by a semicircular ozone air distribution ring 7. The ozone air distribution ring 7 and the connecting rods 6 are hollow. There are several dense small holes on the outside of the ozone air distribution ring 7. The side with holes is externally connected to the activated aeration disk 8. The activated aeration disk 8 is made of a special environmentally friendly Ag3PO4 / NiAl-LDH material loaded on ceramic and then fired.

[0067] The device of the present invention starts water purification work, the ozone generating module 1 is connected to the battery module 4 via the central control module 5, each reaction unit inside the ozone generating module 1 contains an anode tank 30 and a cathode tank 28, the tanks are filled with deionized water doped with a small amount of sodium sulfate, and titanium electrodes (Ti / RuO2-IrO2) with ruthenium-iridium coating are inserted respectively, including an anode plate 29 and a cathode plate 27, and separated by a bipolar membrane 26, the upper part of the electrode extends out of the tank and has a hole, and the electrodes of different reaction units are connected in parallel by the same electrode line. After power is turned on, the reaction in the anode tank and the cathode tank is as shown below, a hole is opened at the top of the anode tank to connect to the ozone output pipe 11, and the ozone gas generated in the tank is transported to the pipe, and a hole is opened at the top of the cathode tank to connect to the hydrogen exhaust pipe, and the hydrogen generated in the tank is discharged to the outside of the device through the pipeline.

[0068]

[0069] The ozone generated by the ozone generating module 1 is collected by the ozone output pipe 11, pressurized by the air compressor 22 and sent to the dissolved gas tank 2. Under the action of the gas pressure in the tank, the ozone is dissolved into the liquid through the solid-liquid interface between the filler and the liquid in the tank to form supersaturated pressurized dissolved ozone water, which is transported to the ozone aeration module through the dissolved ozone water output pipe 13. During the process, the water pump 23 on the other side of the dissolved gas tank 2 continuously extracts the water in the treatment area and sends it into the tank to keep the water volume in the tank constant. In this mode, because the input gas is ozone gas with extremely strong oxidizing ability, it can quickly degrade algae and pollutant impurities in the tank body, and prevent such substances from clogging and hardening in the gaps of the filler. Therefore, the water in the tank can be directly replenished by the treated water area without the need to use deionized water, which effectively solves the problem of water source replenishment in conventional dissolved gas processes.

[0070] The dissolved ozone water output pipe 13 connected by the dissolved gas tank 2 is built into the suspended bottom plate 3, extending from both sides of the bottom plate and inserted into the water body to be treated. The bottom end of the pipe is connected to three hollow connecting rods 6. The tails of the three connecting rods 6 are connected by a semicircular ozone air distribution ring 7. The ozone air distribution ring 7 and the connecting rod 6 are hollow. There are several dense small holes on the outside of the ozone air distribution ring 7. The side with holes is connected to the activated aeration plate 8. The dissolved ozone water in the dissolved gas tank 2 enters the connecting rod 6 through the dissolved ozone water output pipe, and then is evenly distributed in the ozone air distribution ring 7. Under the pressure, it enters the activated aeration plate 8 through the small holes on the outside of the ozone air distribution ring 7. When the dissolved ozone water passes through the microporous channel in the activated aeration plate 8, the following reactions will occur:

[0071] M n+ + O3 +H + → M (n+1)+ + OH· + O2 (Formula 1)

[0072] M n+ + OH → M (n+1)+ + OH -(Formula 2)

[0073] O3 + OH· → O2 + HO2· (Formula 3)

[0074]

[0075] M (n+1)+ + HO2· + OH - → M n+ + H2O + O2 (Formula 6)

[0076] (When the water body is weakly acidic) M-OH + H + → M-OH2 + (Formula 7)

[0077] (When the water body is weakly alkaline) M-OH + OH - → MO - + H2O (Formula 8)

[0078] M-OH2 + + O3 → M-OH + + HO3· (Formula 9)

[0079] M-OH + + O3 → M-HO2 - + O2 (Formula 10)

[0080] M-HO2 - + O3 → M-O2 ·- + HO3· (Formula 11)

[0081] M-OH + + H2O → M-OH2 + + OH· (Formula 12)

[0082] HO3· → O2 + OH· (Formula 13)

[0083] HO3 · → H + + O3 - (Formula 14)

[0084] O3· - + H2O → OH· + O2 + OH - (Formula 15)

[0085] O3· - + OH· → HO2· + O2 ·- (Formula 16)

[0086] O2 ·- + 2H2O → 1 O2 + H2O2 + 2OH - (Formula 17)

[0087] O2 ·- + OH → 1 O2 + OH - (Formula 18)

[0088] In the tiny pores of the activated aeration plate 8, the dissolved ozone water and the activated aeration plate 8 material have a large contact reaction area. When they first come into contact, ozone reacts with metal ions, activating and decomposing to generate OH·, and the metal ions enter the high-valent stage (Formula 1). During the process, a small portion of OH· continues to react with metal ions and is consumed (Formulas 2 to 4). At the same time, as more and more divalent metal ions are oxidized to trivalent, the metal ions need to be reduced to divalent by reduction to stabilize the crystal framework (Formulas 5 and 6). When the solution pH is <pH PZC When the solution pH>pH PZC When the amount of variable valence metal is relatively limited, the formation of ROS in the LDH-catalyzed ozone oxidation process tends to be the interaction between ozone and surface hydroxyl groups; M-OH on the catalyst surface is protonated, but M-OH2 + Very unstable, can be converted into M-OH + 、M-HO2 - and M-O2 ·- , and continuously reacts with O3 to generate HO3·; at the same time, according to equations 9 to 12, M-OH· + Can be reconverted into M-OH2 + , while releasing OH·; the HO3· generated by the above chain reaction will further form OH· and O2 ·- (Formula 13 to Formula 16); 1 O2 is composed of O2 ·- After the above process, ozone is activated into OH· and O2 with stronger oxidizing ability. ·- and 1 O2, can greatly improve the oxidation removal efficiency of algae and pollutants, contains a large amount of OH·, O2 ·- and 1 After the dissolved O2 is released through the activated aeration disk, the gas-liquid phases are rapidly separated to form a large number of microbubbles with extremely small particle sizes due to the sudden decrease in environmental pressure. ·- and 1O2 and other ROS are mixed in the microbubble liquid film, and the mass transfer reaction area is extremely large, which can efficiently realize material transfer and undergo oxidation reactions with algae and pollutants in the water. At the same time, because the microbubble particles are extremely small, they exist in the water in a slowly rising suspended state, which can greatly increase the residence time in the water to be treated, thereby achieving rapid removal of algae and pollutants in the water to be treated.

[0089] The computing unit in the central control module 5 presets an algal bloom pollution degree recognition model, which is based on a neural network and uses a large number of pictures of domestic algal bloom lakes and reservoirs for preliminary training to form a universal recognition model.

[0090] The working principle of the device is as follows: after the device of the present invention is put into use in the target lake, the ozone generation module 1 and the ozone aeration module will not be operated for a short period of time, and the industrial camera 31 will randomly lock a specific water area, and transmit the real water body image corrected by the CPL polarization filter to the central control module 5. The central control module 5 dispatches the propeller drive motor 20 to move the device to the locked specific water area. During this period, the front-end radar 17 continues to operate to prevent collision. The algae density detection mechanism 19 feeds back the algae density data of the water area to the central control module 5. After repeated multiple times, a data set corresponding to the water body image of the target lake and the algae density is formed, and the universal recognition model preset in the central control module 5 is processed with this data set. The secondary training correction improves the accuracy of judging the degree of algal bloom pollution in the target lake. After that, the device of the present invention will officially start the water purification work. The industrial camera 31 will find the target water area with the highest degree of pollution nearby. The central control module 5 will dispatch the propeller drive motor 20 to move the device to the locked target water area. Then, the anchor drive motor 21 will be dispatched to lower the anchor 15, and the device will be fixed to the target water area. The water body of the target water area will be purified by continuously introducing dissolved ozone water that activates the aeration plate 8. After the algae density feedback from the algae density detection mechanism 19 is lower than the set threshold, the anchor drive motor 21 will be dispatched to recover the anchor 15, and the next water area to be treated will be found relying on the industrial camera 31 to realize the automatic operation of the device.

[0091] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A mobile water purification device capable of automatic operation, characterized in that: It includes an ozone generating module, an air dissolving tank, an air compressor, a suspended bottom plate, a battery module, a central control module and an ozone aeration module; the upper part of the suspended bottom plate is fixedly supported by the ozone generating module, the central control module, the air dissolving tank and the battery module; suspended pipes are installed on both sides of the lower part of the suspended bottom plate; a freely rotatable industrial camera is provided at the top front end of the ozone generating module; the front end of the ozone generating module is connected to the central control module; the central control module has a built-in PLC control system, and an algae density detection mechanism is provided at the lower part of the central control module, and the algae density detection mechanism extends to the lower part of the suspended bottom plate and is fixed on the suspended bottom plate; the air dissolving tank is fixed to the rear side of the ozone generating module, and a large amount of fillers are placed in the tank; the ozone generating module is provided with an ozone output pipe, The ozone output pipe is connected to the bottom end of the side wall of the dissolved air tank after passing through the air compressor; a dissolved air ozone water output pipe is provided at the bottom of the dissolved air tank, and the dissolved air ozone water output pipe is built into the suspended bottom plate and extends from both sides of the suspended bottom plate; the ozone aeration module is composed of three connecting rods, an ozone air distribution ring and an activated aeration disk; the bottom end of the dissolved air ozone water output pipe extending from both sides of the suspended bottom plate is connected to the head of the three connecting rods of the ozone aeration module, and the tail of the three connecting rods is connected to the semicircular ozone air distribution ring, the ozone air distribution ring and the connecting rod are hollow structures, and the outer side of the ozone air distribution ring is provided with a plurality of dense small holes and is connected to the activated aeration disk; the battery module contains a plurality of battery blocks, which are connected to the ozone generation module, the industrial camera and the air compressor through the central control module for power supply.

2. The mobile water purification device capable of automatic operation according to claim 1, characterized in that: The ozone generating module is provided with a plurality of ozone electrolysis reaction units, each of which clamps a bipolar membrane in the body of the reaction unit in the form of a flange connection, the bipolar membrane has anode and cathode grooves on both sides, and ruthenium-iridium-plated titanium electrodes are inserted into the grooves, and each reaction unit is connected to the battery module in parallel through electrode wires.

3. The mobile water purification device capable of automatic operation according to claim 2, characterized in that: The ozone generating module is also provided with an ozone output pipe and a hydrogen exhaust pipe for collecting ozone generated by the anode and exhausting hydrogen generated by the cathode.

4. The mobile water purification device capable of automatic operation according to claim 1, characterized in that: The activated aeration disk is made of specially made environment-friendly Ag3PO4 / NiAl-LDH material loaded on ceramic and then fired.

5. The mobile water purification device capable of automatic operation according to claim 4, characterized in that: A water pump is also arranged on the side wall of the gas dissolving tank. The water pump is located at the other end of the ozone output pipe at the inlet of the gas dissolving tank side wall. The water pump is connected to a water inlet pipe which extends into the water to replenish the water in the gas dissolving tank.

6. The mobile water purification device capable of automatic operation according to claim 5, characterized in that: A radar is also provided at the front end of the upper part of the floating base plate, and connection circuits of various modules, an anchor drive motor and a propeller drive motor are also provided inside the floating base plate; an anchor is installed in the middle area of ​​the lower part of the floating base plate and is connected to the anchor drive motor through a rope; a propeller is installed in the floating tube, and the propeller drive motor is used to drive the propeller.

7. The mobile water purification device capable of automatic operation according to claim 6, characterized in that: The front end of the industrial camera is equipped with a CPL polarizing filter that can shield the reflection of the water surface; the outer side of the central control module is provided with a display screen for parameter setting and viewing.

8. The mobile water purification device capable of automatic operation according to claim 7, characterized in that: A solar photovoltaic panel is placed on the top of the ozone generating module, and a detachable rear cover is provided at the rear end; the battery module is connected to the solar photovoltaic panel, and is connected to the radar, water pump, propeller drive motor, and anchor drive motor through the central control module for power supply.

9. A mobile water purification method capable of automatic operation, characterized in that: The following steps are implemented using the mobile water purification device capable of automatic operation as claimed in claim 8: Step S1: put into use in the target lake or reservoir, the industrial camera randomly locks on a specific water area, transmits the real water body image corrected by the CPL polarization filter to the central control module, and the central control module dispatches the propeller drive motor to move the device to the locked specific water area, during which the radar continues to operate to prevent collision; Step S2: The algae density detection mechanism feeds back the algae density data of the water area to the central control module. After repeated processing, a data set corresponding to the water image of the target lake or reservoir and the algae density is formed. This data set is used to perform secondary training and correction on the universal recognition model preset in the central control module to improve the accuracy of the judgment of the algae bloom pollution degree of the target lake or reservoir. Step S3: The industrial camera searches for the target water area with the highest pollution level nearby, and the central control module dispatches the propeller drive motor to move the device to the locked target water area, and then dispatches the anchor drive motor to lower the anchor to fix the device in the target water area; Step S4: The device officially starts water purification. Each reaction unit inside the ozone generating module contains an anode tank and a cathode tank. The tanks are filled with deionized water doped with a small amount of sodium sulfate. After power is turned on, the reaction in the anode tank and the cathode tank is as follows: Anode tank: Cathode tank: Step S5: The ozone gas generated in the tank is transported to the ozone output pipe, and then pressurized by the air compressor and sent to the dissolved gas tank. Under the action of the air pressure in the tank, the ozone gas is dissolved into the liquid through the solid-liquid interface between the filler and the liquid in the tank to form supersaturated pressurized dissolved ozone water, which is then transported to the ozone aeration module through the dissolved ozone water output pipe. During the process, the water pump on the other side of the dissolved gas tank continuously extracts water in the treatment area and sends it into the tank to keep the water volume in the tank constant. Step S6: After the activated aeration disk is released, the ambient pressure suddenly decreases, and the gas-liquid phases are quickly separated to form a large number of microbubbles with extremely small particle sizes. At this time, the dissolved air contains a large amount of OH· and O2 ·- and 1 O2, OH·, O2 ·- and 1 O2 is mixed in the microbubble liquid film, and the mass transfer reaction area is extremely large, which can efficiently realize material transfer and undergo oxidation reactions with algae and pollutants in the water. At the same time, because the microbubble particles are extremely small, they exist in the water in a slowly rising suspended state, which can greatly increase the residence time in the water to be treated, thereby achieving rapid removal of algae and pollutants in the water to be treated. Step S7: When the algae density fed back by the algae density detection mechanism is lower than the set threshold, the anchor drive motor is dispatched to recover the anchor, and the next water area to be treated is searched by relying on the industrial camera to realize the automatic operation of the device.

10. The mobile water purification method capable of automatic operation according to claim 9, characterized in that: The reactions that occur in the activated aeration disk are as follows: M n+ + O3 +H + → M (n+1)+ + OH· + O2 (Formula 1) M n+ + OH → M (n+1)+ + OH - (Formula 2) O3 + OH· → O2 + HO2· (Formula 3) M (n+1)+ + HO2· + OH - → M n+ + H2O + O2 (Formula 6) When the water body is weakly acidic: M-OH+H + →M-OH2 + (Formula 7) When the water is weakly alkaline: M-OH+OH - →MO - +H2O(Formula 8) M-OH2 + + O3 → M-OH + + HO3· (Formula 9) M-OH + + O3 → M-HO2 - + O2 (Formula 10) M-HO2 - + O3 → M-O2 ·- + HO3· (Equation 11) M-OH + + H2O → M-OH2 + + OH· (Formula 12) HO3· → O2 + OH· (Formula 13) HO3· → H + + O3· - (Equation 14) O3· - + H2O → OH· + O2 + OH - (Formula 15) O3· - + OH· → HO2· + O2 ·- (Formula 16) O2 ·- + 2H2O → 1 O2 + H2O2 + 2OH - (Formula 17) O2 ·- +OH → 1 O2+OH - (Equation 18).

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