A mobile water body purification device and method that can be operated automatically

Abstract

The present application relates to a kind of mobile water purification device of automated operation, including ozone generation module, dissolved air tank, air compressor, suspended floor, battery module, central control module and ozone aeration module;The following purification method is executed using the device: nearby target water area is found by industrial camera, a large number of micro-bubbles with extremely small particle size are formed by the rapid separation of gas-liquid two-phase after the release of dissolved ozone water of activated aeration disc by continuously inputting into activated aeration disc, mass transfer area is extremely large, can efficiently realize material transfer and occur oxidation reaction with algae and pollutants in water body, while can greatly improve the residence time in the water to be treated, realize the rapid removal of algae and pollutants in the water to be treated, after the algae density feedback by algae density detection mechanism is lower than set threshold, rely on industrial camera to find next water area to be treated, realize the automated operation of device, the process is completed spontaneously by device, realize complete automation control.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to a mobile water body purification device capable of automatic operation. BACKGROUND

[0002] Lake and reservoir algae bloom prevention and water pollution control are difficult problems faced in the process of water pollution prevention and control. The continuous inflow of agricultural fertilizer and other nutrient exogenous pollutants is prone to cause algae bloom in summer, resulting in blockage of water supply system, water odor, fish death, degradation of aquatic vegetation, and toxin production.

[0003] At present, the difficulties of lake and reservoir algae bloom prevention and water pollution control mainly lie in two points: first, the lake and reservoir water area is vast, and the water volume to be treated is extremely large, so that flocculation and sedimentation, water control and other technologies that need to be constructed along the shore are difficult to radiate the whole area. Second, the lake and reservoir algae bloom has the characteristics of rapid development and large index scale. After the temperature rises in summer, the algae density can be increased to 8 to 9 orders of magnitude in a short time, accompanied by water quality deterioration and other phenomena. The in-situ algae control technology such as biological manipulation has a long effect period and cannot inhibit the outbreak in a short time. The chemical algae control technology has the problems of high labor cost and easy secondary pollution caused by conventional algae killing agents.

[0004] Ozone is an environmentally friendly oxidant with high oxidation-reduction potential and bactericidal performance in water. Its oxidation product is mainly oxygen, without secondary pollution. Based on the above characteristics, ozone has great application potential in lake and reservoir algae bloom prevention and water pollution control. However, there are still technical problems in the engineering application of ozone at present. First, due to the limitation of ozone preparation process, ozone oxidation equipment needs to be constructed along the shore. Second, during the in-situ ozone injection process on the water surface, the contact time with water is short under the influence of buoyancy, and the oxidation reaction is incomplete, resulting in poor purification effect. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a mobile water body purification device and method capable of automatic operation to solve the above problems.

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

[0007] The application discloses a mobile water purification device capable of automatic operation, which comprises an ozone generation module, a dissolved air 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 fixed to bear the ozone generation module, the central control module, the dissolved air tank and the battery module; the lower part of the suspended bottom plate is provided with suspended pipes on both sides; the top of the ozone generation module is provided with an industrial camera capable of freely rotating; the front end of the ozone generation module is connected with the central control module; the central control module is internally provided with a PLC control system; the lower part of the central control module is provided with an algal density detection mechanism which extends to the lower part of the suspended bottom plate and is fixed to the suspended bottom plate; the dissolved air tank is fixed to the rear side of the ozone generation module and is provided with a large amount of fillers; the ozone 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 through the air compressor; the bottom of the dissolved air tank is provided with a dissolved air ozone water output pipe which is internally provided in the suspended bottom plate and extends out from both sides of the suspended bottom plate; the ozone aeration module is composed of three connecting rods, an ozone distribution ring and an activated aeration disc; the bottom end of the dissolved air ozone water output pipe extending out from both sides of the suspended bottom plate is connected with the first part of the three connecting rods of the ozone aeration module, the tail part of the three connecting rods is connected with the half circular ozone distribution ring, the ozone distribution ring and the connecting rods are hollow structures, the outside of the ozone distribution ring is provided with a plurality of dense small holes and is connected with the activated aeration disc; the battery module contains a plurality of battery blocks which are connected with the ozone generation module, the industrial camera and the air compressor through the central control module to supply power.

[0008] Further, a plurality of ozone electrolysis reaction units are arranged in the ozone generation module, each reaction unit is connected with a piece of bipolar membrane in the main body of the reaction unit in a flange connection mode, the two sides of the bipolar membrane are cathode and anode grooves, titanium electrodes with ruthenium iridium plating layer are inserted into the grooves, and the reaction units are connected with the battery module through electrode wires in a parallel mode.

[0009] Further, the ozone generation module is further provided with an ozone output pipe and a hydrogen discharge pipe for collecting ozone generated by the anode and discharging hydrogen generated by the cathode.

[0010] Further, the activated aeration disc is made of a special environmentally friendly Ag3PO4 / NiAl-LDH material loaded on a ceramic and then fired.

[0011] Further, a water pump is further arranged on the side wall of the dissolved air tank, the water pump is located at the other end of the ozone output pipe connected to the side wall of the dissolved air tank, the water pump is connected with a water inlet pipe, and the water inlet pipe extends into water to supplement the water in the dissolved air tank.

[0012] Further, the front end of the upper part of the floating base is also provided with a radar, and the inside of the floating base is also provided with a connecting circuit of each module, a ship anchor driving motor and a propeller driving motor; the middle area of the lower part of the floating base is provided with a ship anchor connected with the ship anchor driving motor through a rope; the propeller is installed in the floating pipe, and the propeller driving motor is used to drive the propeller.

[0013] Further, the front end of the industrial camera is provided with a CPL polarizing mirror capable of shielding water surface reflection, and the outside of the central control module is provided with a display screen for parameter setting and viewing.

[0014] Further, the top of the ozone generation module is provided with a solar photovoltaic panel, and the rear end is provided with a detachable rear cover plate; the battery module is connected with the solar photovoltaic panel, and is connected with the radar, the water pump, the propeller driving motor and the ship anchor driving motor for power supply through the central control module.

[0015] The application also discloses a mobile water body purification method capable of automatic operation, which adopts the mobile water body purification device to implement the following steps.

[0016] Step S1: being put into target lake or reservoir for use, randomly locking a specific water area by the industrial camera, transmitting the real water body image corrected by the CPL polarizing mirror to the central control module, and scheduling the propeller driving motor by the central control module to move the device to the locked specific water area, during which the radar continuously operates to prevent collision;

[0017] Step S2: the algal density detection mechanism feeds back the algal density data of the water area to the central control module, repeatedly forms a data set corresponding to the target lake or reservoir water body image and algal density after multiple times, and performs secondary training and correction on the preset universal recognition model in the central control module according to the data set, so as to improve the accuracy of judging the algal bloom pollution degree of the target lake or reservoir.

[0018] Step S3: the industrial camera finds the target water area with the highest pollution degree nearby, the central control module schedules the propeller driving motor to move the device to the locked target water area, and then schedules the ship anchor driving motor to lower the ship anchor to fix the device in the target water area.

[0019] Step S4: the device formally starts water body purification work, each reaction unit in the ozone generation module contains an anode groove and a cathode groove, the grooves are filled with deionized water doped with a small amount of sodium sulfate, and after being electrified, the anode groove and the cathode groove react as shown in the following formula:

[0020] Anode groove:

[0021] Cathode groove:

[0022] Step S5: The ozone gas generated in the tank is transported to the ozone output pipe, pressurized by the air compressor and sent into the gas dissolving tank. Under the action of the gas pressure in the tank, it is dissolved into the liquid through the solid-liquid interface between the filler and the liquid in the tank, forming supersaturated pressurized ozone water. The ozone water is transported to the ozone aeration module through the ozone water output pipe. In the process, the water pump on the other side of the gas dissolving tank continuously extracts the water in the treatment area and sends it into the tank, keeping the water amount in the tank constant;

[0023] Step S6: After being released by the activated aeration disc, the gas-liquid two phases rapidly separate due to the sudden decrease of the environmental pressure, forming a large number of micro-bubbles with extremely small particle size. At this time, the ozone water contains a large amount of OH·, O2 ·- and 1 O2, OH·, O2 ·- and 1 O2 and other ROS mixed in the micro-bubble liquid film. The mass transfer area is extremely large, which can efficiently realize the mass transfer and oxidation reaction with algae and pollutants in the water body. At the same time, due to the extremely small particle size of the micro-bubbles, they exist in the water body in a slow rising suspended state, which can greatly increase the residence time in the water body to be treated, realizing the rapid removal of algae and pollutants in the water body to be treated.

[0024] Step S7: After the algae density detected by the algae density detection mechanism is lower than the set threshold, the anchor driving motor is recovered, and the next water area to be treated is found relying on the industrial camera, realizing the automatic operation of the device.

[0025] Further, the reactions occurring in the aeration disc are as follows:

[0026] M n+ + O3 +H + → M (n+1)+ + OH· + O2 (Formula 1)

[0027] M n+ + OH· → M (n+1)+ + OH - (Formula 2)

[0028] O3 + OH· → O2 + HO2· (Formula 3)

[0029]

[0030] M (n+1)+ + HO2· + OH - → M n+ + H2O + O2 (Formula 6)

[0031] When the water to be treated is weakly acidic: M-OH + H + → M-OH2 + (Formula 7)

[0032] When the water body is weakly alkaline: M-OH + OH - → M-O - + H2O (Equation 8)

[0033] M-OH2 + + O3 → M-OH· + + HO3· (Equation 9)

[0034] M-OH· + + O3 → M-HO2 - + O2 (Equation 10)

[0035] M-HO2 - + O3 → M-O2 ·- + HO3· (Equation 11)

[0036] M-OH· + + H2O → M-OH2 + + OH· (Equation 12)

[0037] HO3· → O2 + OH· (Equation 13)

[0038] HO3· → H + + O3· - (Equation 14)

[0039] O3· - + H2O → OH· + O2 + OH - (Equation 15)

[0040] O3· - + OH· → HO2· + O2 ·- (Equation 16)

[0041] O2 ·- + 2H2O → 1 O2 + H2O2 + 2OH - (Equation 17)

[0042] O2 ·- + OH· → 1 O2 + OH - (Equation 18);

[0043] In the activated aeration disc fine channel, the dissolved ozone water has a great contact reaction area with the aeration disc material. In the initial contact, ozone reacts with metal ions to generate OH, and the metal ions enter the high-valence stage (formula 1). In the process, a small part of OH continues to react with metal ions and is consumed (formula 2 to formula 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 to stabilize the crystal framework (formula 5 and formula 6). When the solution pH < pH PZC , the catalyst surface tends to be protonated, and when the solution pH > pH PZC , the catalyst surface tends to be deprotonated (formula 7 and formula 8); through the combination of ozone on the surface active site (such as Lewis acid site or basic site) to form ROS (reactive oxygen species); when the number of variable valence metal is relatively limited, the ROS formation in the LDH catalytic ozone oxidation process tends to be the interaction of ozone and surface hydroxyl; M-OH on the surface of the catalyst is protonated, however M-OH2 + is very unstable and 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 formula 9 to formula 12, M-OH· + can be reconverted into M-OH2 + , while releasing OH·; the HO3· generated by the above chain reaction can further form OH· and O2 ·- (formula 13 to formula 16); 1 O2 is generated by the reaction of O2 ·- and H2O or OH· (formula 17 and formula 18).

[0044] The present application has the following beneficial technical effects:

[0045] Firstly, the industrial camera loaded with CPL polarizer can shield the water surface reflection, and input the real color state of the surrounding water surface to the central control module. Through the image recognition algorithm of the central control module, the seriously polluted area in the water area is located in real time, and the propeller is mobilized by the central control module to move the device to the area to carry out water purification. The algal density detection device feedbacks the water quality of the area in real time, and moves to the next place after the water quality is lower than the set threshold. The process is completed spontaneously by the device, without external intervention of personnel, realizing complete automatic control and greatly reducing the labor cost of treatment.

[0046] Secondly, through the high-efficiency catalysis of the titanium electrode with ruthenium and iridium plating layers (Ti / RuO2-IrO2) and the high-efficiency proton transmission of the bipolar membrane, high-quality ozone can be produced at a high yield by using low-voltage direct current supplied by a mobile power supply; after the ozone is compressed by a gas dissolving tank to form supersaturated pressurized ozone water, the ozone water is released into a lake or reservoir water body at normal pressure to form micro-bubbles with extremely small particle sizes, which are in a suspended state slowly rising in the water, greatly prolonging the residence time of the micro-bubbles in the water, and strengthening the treatment effect; and when the ozone water passes through a specially designed activated aeration disc, the ozone water is instantaneously activated to convert the ozone into active oxygen (ROS) with stronger oxidation capacity, greatly improving the oxidation and removal effect on algae and pollutants. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is a front view of a mobile water body purification device capable of automatic operation according to the present application;

[0048] Figure 2 is a side view of a mobile water body purification device capable of automatic operation according to the present application;

[0049] Figure 3 is a top view of a mobile water body purification device capable of automatic operation according to the present application;

[0050] Figure 4 is a bottom view of a mobile water body purification device capable of automatic operation according to the present application;

[0051] Figure 5 is a front side structural schematic view of a mobile water body purification device capable of automatic operation according to the present application;

[0052] Figure 6 is a bottom structural schematic view of a mobile water body purification device capable of automatic operation according to the present application;

[0053] Figure 7 is an ozone generation module structural schematic view of a mobile water body purification device capable of automatic operation according to the present application;

[0054] Figure 8 is an explosion view of a group of ozone electrolysis reaction units at position A in the present application Figure 7

[0055] Figure 9 is an explosion view of a mobile water body purification device capable of automatic operation according to the present application.

[0056] The reference signs in the drawings are as follows:

[0057] ​1, ozone generation module; 2, gas tank; 3, suspended bottom plate; 4, battery module; 5, central control module; 6, connecting rod; 7, ozone gas distribution ring; 8, activated aeration disc; 9, suspended pipe; 10, solar photovoltaic panel; 11, ozone output pipe; 12, hydrogen exhaust pipe; 13, ozone water output pipe; 14, rope; 15, boat anchor; 16, propeller; 17, radar; 18, water inlet pipe; 19, algal density detection mechanism; 20, propeller drive motor; 21, boat anchor drive motor; 22, air compressor; 23, water pump; 24, rear cover plate; 25, battery block; 26, bipolar membrane; 27, cathode plate; 28, cathode groove; 29, anode plate; 30, anode groove; 31, industrial camera. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0059] EMBODIMENT

[0060] A mobile water purification device capable of automatic operation, comprising an ozone generation module 1, a gas tank 2, a suspended bottom plate 3, a suspended pipe 9, a boat anchor 15, an industrial camera 31, a battery module 4, a central control module 5, and an ozone aeration module.

[0061] The ozone generation module 1 is fixed on the suspended bottom plate 3, the front end is connected with the central control module 5, the top is placed with a solar photovoltaic panel 10, the rear end is provided with a detachable rear cover plate 24 to realize closed protection, and the ozone generation module 1 is provided with multiple groups of ozone electrolysis reaction units. Each group of reaction units clamps a piece of bipolar membrane 26 in the main body of the reaction unit in the form of flange connection, and the two sides of the bipolar membrane are cathode grooves 28 and anode grooves 30. A titanium electrode (Ti / RuO2-IrO2) plated with ruthenium and iridium is inserted into the grooves. Each reaction unit is connected with the battery module 4 through electrode wires in a parallel form. Each reaction unit is provided with an ozone output pipe 11 and a hydrogen exhaust pipe 12 for collecting ozone generated by the anode and discharging hydrogen generated by the cathode.

[0062] The gas tank 2 is fixed on the upper rear side of the suspended bottom plate 3, a large amount of filler is placed in the tank, the ozone output pipe 11 of the ozone generation module 1 is connected to the bottom of the gas tank 2 through the air compressor 22, and a water pump 23 is arranged on the other side of the gas tank 2. The water inlet pipe 18 is connected to the water for supplementing the water in the gas tank. A gas ozone water output pipe 13 is connected to the bottom of the tank body and is arranged in the suspended bottom plate 3, and extends from both sides of the bottom plate and is connected with the ozone aeration module.

[0063] The upper part of the suspension base plate 3 bears and fixes the ozone generation module 1, the gas dissolving 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 gas dissolving ozone water output pipe 13 and other pipelines, the ship anchor driving motor 21 and the propeller driving motor 20. The lower part of the side edge is provided with the suspension pipe 9, and the propeller 16 is arranged in the pipe to provide power. The lower part of the middle area is provided with the ship anchor 15 connected with the ship anchor driving motor 21 through the rope 14.

[0064] The industrial camera 31 is arranged at the top of the device and can rotate freely. The CPL polarizing mirror capable of shielding water surface reflection is arranged at the front end of the industrial camera 31. The industrial camera 31 is connected with the battery module 4 through the central control module 5.

[0065] The battery module 4 contains a plurality of battery blocks 25 connected with the solar photovoltaic panel 10 at the top of the ozone generation module 1, and is connected with the radar 17, the ozone generation module 1, the air compressor 22, the water pump 23, the propeller driving motor 20 and the ship anchor driving motor 21 for power supply through the central control module 5.

[0066] The central control module 5 is arranged at the front end of the ozone generation module 1 and is provided with a PLC control system. The display screen is arranged on the outer side of the central control module 5 for parameter setting and viewing. The algae density detection mechanism 19 is arranged at the lower part of the central control module 5 and extends to the lower part of the suspension base plate 3 and is fixed on the suspension base plate 3. The ship anchor driving motor 21, the propeller driving motor 20, the water pump 23, the air compressor 22 and the electrode line of the ozone generation module are connected with the battery module 4 through the central control module 5.

[0067] The ozone aeration module is composed of three connecting rods 6, an ozone distribution ring 7 and an activated aeration disc 8. The bottom end of the gas dissolving ozone water output pipe 13 extending from the suspension base plate 3 is connected with the three connecting rods 6. The tail part of the three connecting rods 6 is connected with the ozone distribution ring 7 in a semicircle shape. The ozone distribution ring 7 is hollow in the connecting rod 6. A plurality of small holes are arranged on the outer side of the ozone distribution ring 7. The activated aeration disc 8 is arranged outside the holes. The activated aeration disc 8 is made of the Ag3PO4 / NiAl-LDH material specially made for the environment and is loaded on the ceramic after firing.

[0068] The device starts water purification work, the ozone generation module 1 is connected with the battery module 4 through the central control module 5, each reaction unit in the ozone generation module 1 contains an anode groove 30 and a cathode groove 28, the groove is filled with deionized water doped with a small amount of sodium sulfate, and is respectively inserted into a titanium electrode (Ti / RuO2-IrO2) plated with ruthenium and iridium, including an anode plate 29, a cathode plate 27, and is separated by a bipolar membrane 26, the upper part of the electrode extends out of the groove and is perforated, the electrodes of different reaction units are connected in parallel by the same electrode wire, after power-on, the anode groove and the cathode groove react as follows, a hole is formed at the top of the anode groove and is connected with the ozone output pipe 11, the ozone gas generated in the groove is transported into the pipe, a hole is formed at the top of the cathode groove and is connected with the hydrogen discharge pipe, the hydrogen gas generated in the groove is discharged to the outside of the device through the pipeline.

[0069] Anode groove:

[0070] Cathode groove:

[0071] The ozone generated by the ozone generation module 1 is collected by the ozone output pipe 11, pressurized by the air compressor 22, and then sent into the gas dissolving tank 2, under the action of the gas pressure in the tank, it is dissolved into the liquid through the solid-liquid interface between the filler and the liquid in the tank, forming supersaturated pressurized gas ozone water, which is transported to the ozone aeration module through the gas ozone water output pipe 13, in the process, the water pump 23 on the other side of the gas dissolving tank 2 continuously extracts the water in the treatment area and sends it into the tank, keeping the water amount in the tank constant. In this mode, because the input gas is ozone gas with strong oxidizing ability, it can quickly degrade algae and pollutant impurities in the tank, preventing such substances from clogging and hardening in the filler gap, so the water in the tank can be directly supplemented from the treatment water area without using deionized water, effectively solving the water source supplement problem of the conventional gas dissolving process.

[0072] The gas ozone water output pipe 13 connected from the gas dissolving tank 2 is built into the suspended bottom plate 3 and extends from both sides of the bottom plate and is inserted into the water to be treated, the bottom end of the pipe is connected to three hollow connecting rods 6, the tail of the three connecting rods 6 is connected by a semicircular ozone distribution ring 7, the ozone distribution ring 7 is hollow inside the connecting rod 6, and the outside of the ozone distribution ring 7 has a plurality of dense small holes, and the hole side is circumscribed with an activated aeration disc 8. The gas ozone water in the gas dissolving tank 2 enters the connecting rod 6 through the gas ozone water output pipe, and then is uniformly distributed in the ozone distribution ring 7, and is pushed by pressure into the activated aeration disc 8 through the small holes on the outside of the ozone distribution ring 7. When the gas ozone water passes through the micropore channel in the activated aeration disc 8, the following reactions occur:

[0073] M n+ + O3 +H + → M (n+1)+ + OH· + O2 (Formula 1)

[0074] Mn+ + OH· → M (n+1)+ + OH - (Formula 2)

[0075] O3 + OH· → O2 + HO2· (Formula 3)

[0076]

[0077] M (n+1)+ + HO2· + OH - → M n+ + H2O + O2 (Formula 6)

[0078] (M-OH + H2O) (when the water body is weakly acidic) M-OH + H + → M-OH2 + (Formula 7)

[0079] (M-OH + OH) (when the water body is weakly alkaline) M-OH + OH - → M-O - + H2O (Formula 8)

[0080] M-OH2 + + O3 → M-OH· + + HO3· (Formula 9)

[0081] M-OH· + + O3 → M-HO2 - + O2 (Formula 10)

[0082] M-HO2 - + O3 → M-O2 ·- + HO3· (Formula 11)

[0083] M-OH· + + H2O → M-OH2 + + OH· (Formula 12)

[0084] HO3· → O2 + OH· (Formula 13)

[0085] HO3· → H + + O3· - (Formula 14)

[0086] O3· - + H2O → OH· + O2 + OH - (Formula 15)

[0087] O3· -+ OH· → HO2· + O2 ·- (Equation 16)

[0088] O2 ·- + 2H2O → 1 O2 + H2O2 + 2OH - (Equation 17)

[0089] O2 ·- + OH· → 1 O2 + OH - (Equation 18)

[0090] 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. During the initial contact, ozone reacts with the 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 the 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 and 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 formula 9 to formula 12, M-OH· + Can be converted back into M-OH2 + , while releasing OH·; the HO3· generated by the above chain reaction will further form OH· and O2 ·- (Equations 13 to 16); 1 O2 is made 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 1The gas-liquid two phases are quickly separated to form a large number of micro-bubbles with extremely small particle sizes due to the sudden reduction of the environmental pressure after the activated aeration disc releases the dissolved gas water of O2. ·- and 1 The ROS such as O2 are mixed in the liquid film of the micro-bubbles, the mass transfer reaction area is extremely large, the material transfer can be efficiently realized, and the oxidation reaction with the algae and the pollutants in the water body can be realized, meanwhile, the micro-bubble particles are extremely small, the micro-bubbles exist in the suspended state of slowly rising in the water body, the residence time in the water body to be treated can be greatly improved, and the algae and the pollutants in the water body to be treated can be quickly removed.

[0091] The operation processing unit in the central control module 5 is preset with an algae bloom pollution degree identification model, the model is preliminarily trained based on a neural network by using a large number of pictures of the water bodies of the domestic algae bloom lakes and reservoirs, and a universal identification model is formed.

[0092] The working principle of the device is as follows: after the device is put into use in the target lake or reservoir, the ozone generation module 1 and the ozone aeration module are not operated for a short time, the industrial camera 31 randomly locks a specific water area, and the real water body image modified by the CPL polarizing mirror is transmitted to the central control module 5, the central control module 5 schedules the propeller driving motor 20 to move the device to the locked specific water area, the front-end radar 17 continuously operates to prevent collision during the movement, the algae density detection mechanism 19 feeds back the algae density data of the water area to the central control module 5, and the data set corresponding to the image of the water body of the target lake or reservoir and the algae density is formed after repeated multiple times, the universal identification model preset in the central control module 5 is secondarily trained and modified according to the data set, and the accuracy of the algae bloom pollution degree discrimination of the target lake or reservoir is improved; then the device starts the water body purification work, the industrial camera 31 finds the target water area with the highest pollution degree nearby, the central control module 5 schedules the propeller driving motor 20 to move the device to the locked target water area, then the ship anchor driving motor 21 is scheduled to lower the ship anchor 15 to fix the device in the target water area, the dissolved ozone water of the activated aeration disc 8 is continuously introduced to purify the water body of the target water area, after the algae density fed back by the algae density detection mechanism 19 is lower than the set threshold value, the ship anchor driving motor 21 is scheduled to recover the ship anchor 15, and the next water area to be treated is found relying on the industrial camera 31, so that the automatic operation of the device is realized.

[0093] The above-described embodiments only express the specific implementation of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A mobile water purification device capable of automatic operation, characterized in that: The ozone generating unit 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, which feeds back the algae density data of the water area to the central control module, and 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 filler is placed in the air dissolving tank; the ozone generating module is provided with an ozone output pipe, which is connected to the bottom end of the side wall of the air dissolving tank after passing through the air compressor; a dissolved ozone water output pipe is provided at the bottom of the air dissolving tank 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 end 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. There are several dense small holes on the outside of the ozone air distribution ring, which is connected to the activated aeration disk. connection; the battery module contains several battery blocks, which are connected to the ozone generation module, the industrial camera and the air compressor for power supply through the central control module; the ozone generation module is equipped with multiple groups of ozone electrolysis reaction units, and each group of reaction units is flange-connected to clamp a bipolar membrane in the main body of the reaction unit, with cathode tanks and anode tanks on both sides of the bipolar membrane, respectively. Ruthenium-iridium-plated titanium electrodes are inserted into the cathode tank and the anode tank, and each reaction unit is connected to the battery module in parallel through electrode lines.

2. The mobile water purification device capable of automatic operation according to claim 1, characterized in that: The ozone generating module is equipped with an ozone output pipe and a hydrogen exhaust pipe for collecting ozone generated by the anode and exhausting hydrogen generated by the cathode.

3. The mobile water purification device capable of automatic operation according to claim 1, characterized in that: The activated aeration disk is formed by loading environmentally friendly Ag3PO4 / NiAl-LDH material on ceramic and then firing it.

4. The mobile water purification device capable of automatic operation according to claim 3, characterized in that: A water pump is also provided on the side wall of the dissolved air tank. The water pump is located at the other end of the ozone output pipe at the inlet on the side wall of the dissolved air tank. The water pump is connected to a water inlet pipe, which extends into the water in the target lake reservoir to replenish the water in the dissolved air tank.

5. The mobile water purification device capable of automatic operation according to claim 4, characterized in that: A radar is also provided at the front end of the upper portion of the floating base, and connection circuits for each module, an anchor drive motor and a propeller drive motor are also provided inside the floating base; an anchor is installed in the middle area of ​​the lower portion of the floating base, and the anchor is connected to the anchor drive motor via a rope; a propeller is installed in the floating tube, and the propeller drive motor is used to drive the propeller.

6. The mobile water purification device capable of automatic operation according to claim 5, 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.

7. The mobile water purification device capable of automatic operation according to claim 6, 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 the battery module is connected to the radar, water pump, propeller drive motor, and anchor drive motor through the central control module for power supply.

8. A mobile water purification method capable of automatic operation, characterized in that: The following steps are performed using the mobile water purification device capable of automatic operation as claimed in claim 7: Step S1: The target lake or reservoir is put into use. The industrial camera randomly locks onto a specific water area and transmits the real water image corrected by the CPL polarization filter to the central control module. The central control module dispatches the propeller drive motor to move the device to the locked specific water area. During this period, the radar continues to operate to prevent collisions. Step S2: The algae density detection mechanism feeds back the algae density data of the water area to the central control module. After repeated iterations, a data set is formed, which corresponds to the target lake water image and algae density. This data set is used to perform secondary training and correction on the universal recognition model preset in the central control module, thereby improving the accuracy of the judgment of the algal bloom pollution degree of the target lake. Step S3: The industrial camera searches for the target water area with the highest pollution level nearby. The central control module dispatches the propeller drive motor to move the device to the targeted water area. The anchor drive motor is then dispatched to lower the anchor to secure the device in the targeted water area. Step S4: The device officially starts water purification. Each reaction unit inside the ozone generation module contains an anode tank and a cathode tank. The anode tank and the cathode tank 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, pressurized by the air compressor and then sent to the dissolved air 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, forming supersaturated pressurized dissolved ozone water, which is transported to the ozone aeration module through the dissolved ozone water output pipe. During this process, the water pump on the other side of the dissolved air tank continuously draws water from the treatment area and sends it into the tank to keep the water volume in the tank constant. Step S6: After the activation aeration plate is released, the ambient pressure suddenly drops, and the gas-liquid phases separate rapidly to form a large number of microbubbles. 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 achieve efficient material transfer and oxidize algae and pollutants in the water. At the same time, the microbubbles exist in the water in a slowly rising suspended state, which can greatly increase the residence time in the water to be treated, and achieve rapid removal of algae and pollutants in the water to be treated; Step S7: After the algae density reported by the algae density detection mechanism is lower than the set threshold, the anchor drive motor is dispatched to reclaim 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.

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

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