Plasma pesticide residue removing and cleaning wastewater purifying and recycling all-in-one machine

Abstract

The utility model discloses a plasma all-in-one machine for removing pesticide residues and purifying and recycling cleaning wastewater. The plasma all-in-one machine comprises a main body, the tank body is arranged on the main body; the tank body is arranged at the upper part of the main body and beside the tank body; the discharge unit is used for generating plasma, is arranged at the upper part of the main body, is positioned beside the tank body and the groove body, is communicated with the groove body through a first pipeline and is communicated with the tank body through a second pipeline; the air compressor is arranged at the lower part of the main body and is communicated with the discharging device; microporous aeration stones are embedded in the bottoms of the tank body and the tank body; and the first pipeline and the second pipeline are respectively communicated to the microporous aeration stones of the tank body and the tank body. The cleaning system for solid materials such as fruits and vegetables and the pesticide residue degradation and sterilization system for liquid materials such as fruit and vegetable juice / pulp can be operated simultaneously or independently, and can also be synergistically combined to firstly clean the fruits and vegetables and reduce pesticide residues, then the cleaned fruits and vegetables are made into juice / pulp, and then the pesticide residues of the liquid materials are degraded and sterilized. And the bubbles are synchronously overlapped to achieve the effect of uniform cleaning or sterilization.

Description

Technical Field

[0001] This utility model relates to the field of atmospheric pressure plasma technology. More specifically, this utility model relates to an integrated machine for plasma pesticide residue removal and wastewater purification and recycling. Background Technology

[0002] In recent years, food safety issues stemming from inadequate pre-processing cleaning of fruits and vegetables have become a major challenge for modern food processing. For example, microbial residues can cause foodborne illnesses, and pesticide residues may pose long-term potential health hazards. With increasing demand for multi-nutrient and healthy foods, the full utilization of fruits and vegetables, particularly the removal or degradation of harmful substances like pesticide residues, must be addressed, primarily through washing. Current washing technologies include running water rinsing, washing with disinfectants such as chlorine dioxide or specialized fruit and vegetable cleaners, ultrasonic cleaning, ozone water cleaning, and electrolytic water cleaning. Different methods offer varying cleaning effectiveness and involve costs and sustainability concerns regarding the environmentally friendly discharge of wastewater. Therefore, developing safe, efficient, and emission-reducing green cleaning technologies is of paramount importance.

[0003] Low-temperature plasma technology is an advanced oxidation technology that integrates multiple oxidation mechanisms, including high-energy electron radiation, ozone oxidation, and photochemical oxidation. Due to its excellent oxidizing properties, it requires no chemical reagents and has broad application prospects in sterilization and disinfection. During the discharge process, plasma generates reactive oxygen species (ROS), including hydroxyl radicals (·OH), hydrogen peroxide (H₂O₂), and ozone (O₃), as well as nitrite (NO₂). - ) and nitrate (NO3) - Reactive nitrogen substances (RNS), represented by [example of active nitrogen substances], can effectively kill microorganisms and have a strong degradation effect on various inorganic and organic substances, especially pesticides. They can degrade large pesticide molecules into non-toxic or low-toxic small molecules. Relevant patents include: CN 107801287 B, which discloses a low-temperature plasma generator for sterilization and pesticide residue reduction; CN 109805249B, which discloses an electromagnetic induction coupled radio frequency discharge plasma device and a method for cleaning and preserving fruits and vegetables; CN112931761 A, which discloses a device and method for pesticide residue degradation and disinfection in tea based on atmospheric pressure cold plasma; and CN 116831292 A, which discloses a plasma cleaning device and method for fruits and vegetables.

[0004] While the core equipment of the aforementioned plasma technology, the plasma generator, and related cleaning, preservation, and pesticide residue degradation and disinfection devices based on the generator have been reported, limitations remain, including intermittent processing, the ability to handle only solid or liquid materials, the inability to quickly separate materials, poor cleaning uniformity, and the inability to recycle wastewater. Therefore, designing and constructing reasonable integrated equipment based on plasma generators for the removal of pesticide residues and other harmful substances from fruits and vegetables still requires addressing issues such as the generation and utilization of plasma gas and liquid circulation, balancing the differences between solid and liquid materials and ensuring rapid separation, the physical compatibility of the treatment tank and generator design, the continuity of the cleaning process, and the recycling of cleaning wastewater. These issues must be resolved to meet the industrial application requirements for effective removal of harmful substances, cost control, and emission reduction and environmental protection. Utility Model Content

[0005] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0006] Another objective of this invention is to provide an integrated machine for plasma pesticide residue removal and wastewater purification and recycling.

[0007] To achieve these objectives and other advantages of this utility model, the following technical solution is provided:

[0008] A plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine includes: a main body, which is box-shaped;

[0009] A tank body is disposed on the upper part of the main body;

[0010] A tank body is disposed on the upper part of the main body and located on one side of the trough body;

[0011] The discharge unit includes multiple discharge devices that generate plasma. The multiple discharge devices are located on the upper part of the main body and next to the tank and the trough. Several discharge devices are connected to the trough through several first pipes, and the remaining discharge devices are connected to the tank through second pipes.

[0012] An air compressor is located at the lower part of the main body, and the air compressor is connected to the discharge device through a third pipe;

[0013] The bottom of both the trough and the tank is embedded with microporous aeration stones, and several first pipes and second pipes are respectively connected to the microporous aeration stones at the bottom of the trough and the tank.

[0014] Preferably, in the plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine, a drainage pipe is connected to one side of the tank, a material basket is embedded inside the tank, and a cover is provided on the top. The material basket can be lifted at any time to separate solid and liquid materials, and the basket is poured and loaded to realize continuous circulation feeding and cleaning. A first gas discharge pipe communicating with the inside of the tank is provided on the cover.

[0015] Preferably, in the plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine, the upper part of the tank is provided with a second gas discharge pipe that communicates with the inside of the tank.

[0016] Preferably, the integrated plasma pesticide residue removal and wastewater purification and recycling machine further includes:

[0017] The water-stopping unit includes multiple one-way water-stopping valves, which are arranged on the left side of the main body and located below the tank. The multiple one-way water-stopping valves are connected to the tank through several fourth pipes.

[0018] A one-way valve is located on the right side of the main body and below the tank body, and the one-way valve is connected to the tank body through a fifth pipe;

[0019] A water receiving trough is located at the bottom of the main body, next to the air compressor, and is connected to several of the fourth and fifth pipes.

[0020] The first rotor flow meter and the second rotor flow meter are both located on the right side of the front of the main body. Several first rotor flow meters are each connected to the microporous aeration stone of the tank through several first pipes. The second rotor flow meter is connected to the microporous aeration stone of the tank through a second pipe.

[0021] Preferably, in the plasma pesticide residue removal and wastewater purification and recycling integrated machine, the bottom of the tank is provided with 5 microporous aeration stones, the bottom of the vessel is provided with 1 microporous aeration stone in connection, and the discharge unit includes 6 discharge devices, with one discharge device corresponding to one microporous aeration stone.

[0022] Preferably, in the plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine, the bottom of the tank is connected to 5 one-way stop valves, and the bottom of the vessel is connected to 1 one-way valve.

[0023] Preferably, in the plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine, the tank has dimensions of 220mm*220mm*210mm and a volume of about 10L, which can meet the maximum fruit and vegetable processing capacity of 2kg, and the container has a volume of 920mL, which can meet the maximum liquid processing capacity of 800mL.

[0024] Preferably, in the plasma pesticide residue removal and wastewater purification and recycling integrated machine, there are a total of 6 rotor flow meters. Five first rotor flow meters are connected to five microporous aeration stones in the tank through several first pipes. One second rotor flow meter on the right is connected to the microporous aeration stone at the bottom of the tank through a second pipe. The rotor flow meters can control the flow rate of the activation gas. The flow rate of each rotor flow meter can be adjusted within the range of 0.7-7 liters / minute.

[0025] Preferably, the integrated plasma pesticide residue removal and wastewater purification and recycling machine further includes:

[0026] The control panel, located on the upper right front of the main body, includes a timer, compressor knob, drain knob, buzzer, emergency stop button, power-on knob, pressure gauge, discharge start button, discharge stop button, boat-shaped button, rotor flow meter, and alarm light.

[0027] Preferably, in the plasma pesticide residue removal and wastewater purification and recycling integrated machine, the discharge unit has a discharge voltage of about 8.5 kV, the discharge power of a single discharge unit is 30W, the discharge power of the tank is adjustable from 30W to 150W, and the discharge power of the container is not adjustable and is 30W.

[0028] Preferably, in the plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine, the drainage pipe is connected to the cleaning wastewater purification and recycling treatment machine. After coarse filtration, fine filtration and plasma micro-nano bubble sterilization treatment, the water quality can reach the drinking water standard and can be introduced into the tank for recycling.

[0029] Preferably, in the plasma pesticide residue removal and wastewater purification and recycling integrated machine, casters are provided at the bottom of the main body.

[0030] This utility model has at least the following beneficial effects:

[0031] This utility model relates to an integrated plasma pesticide residue removal and cleaning wastewater purification and recycling machine, comprising a solid material cleaning system for fruits and vegetables in a tank, a liquid material pesticide residue degradation and sterilization system for fruit and vegetable juice / pulp in a container, and a cleaning wastewater treatment system. The plasma-activated gas is bubbled through microporous aeration stones to activate the water in the tank and the fruit and vegetable juice / pulp in the container, achieving the purposes of cleaning, pesticide residue degradation, and sterilization. The solid material cleaning system and the liquid material pesticide residue degradation and sterilization system can operate simultaneously or separately, or they can be combined in a coordinated manner. The fruits and vegetables are first cleaned and pesticide residues are degraded, and then the cleaned fruits and vegetables are juiced / pulpled before undergoing liquid material pesticide residue degradation and sterilization. This device features a rational structural design, allowing for simultaneous fruit and vegetable cleaning and plasma-generated active substances to activate the water. Bubbling via microporous aeration stones ensures the active substances dissolve more evenly and fully into the liquid, effectively transferring active groups. The bubbling also causes the fruits and vegetables to vibrate and tumble, effectively washing away debris from uneven surfaces and crevices, resulting in more thorough cleaning, shorter working time, and increased efficiency. The material baskets within the tank can be lifted, quickly separated from solid materials, and the baskets can be emptied and replaced. The cleaning intensity can be controlled by adjusting parameters such as discharge power and airflow. The cleaning wastewater is purified and recycled through a wastewater treatment system, saving costs, reducing wastewater discharge, and achieving efficient cleaning, degradation of pesticide residues, and sterilization.

[0032] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the integrated plasma pesticide residue removal and wastewater purification and recycling machine in one embodiment of this utility model.

[0034] Figure 2 This is a front cross-sectional view of one embodiment of the plasma pesticide residue removal and wastewater purification and recycling integrated machine of this utility model.

[0035] Figure 3 This is a schematic diagram of the back section of one embodiment of the plasma pesticide residue removal and wastewater purification and recycling integrated machine of this utility model.

[0036] Figure 4 This is a front view of one of the solutions of this utility model: a plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine.

[0037] Figure 5The graph shows the effect of applying this utility model to clean apples with different discharge powers on the removal rate of five pesticides on the apple surface: carbendazim, imidacloprid, tebuconazole, pyraclostrobin, and abamectin.

[0038] Figure 6 The graph shows the effect of applying this utility model to clean apples with different discharge times on the removal rate of five pesticides on the apple surface: carbendazim, imidacloprid, tebuconazole, pyraclostrobin, and abamectin.

[0039] Figure 7 The graph shows the effect of applying this utility model to clean apples with different discharge gas flow rates on the removal rate of five pesticides on the apple surface: carbendazim, imidacloprid, tebuconazole, pyraclostrobin, and abamectin. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0041] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] like Figure 1-4 As shown, this utility model provides an integrated machine for plasma pesticide residue removal and cleaning wastewater purification and recycling, comprising:

[0044] Main body 1, which is box-shaped;

[0045] The trough 7 is disposed on the upper part of the main body;

[0046] Tank 11 is disposed on the upper part of the main body and located on one side of the trough 7;

[0047] The discharge unit 6 includes multiple discharge devices that ionize air. These discharge devices are positioned at the upper part of the main body, adjacent to the tank 11 and the trough 7. Several of the discharge devices are connected to the trough 7 via several first pipes, while the remaining discharge devices are connected to the tank 11 via second pipes. Preferably, the active substance generated by the discharge unit 6 can be a combination of various gases such as free radicals, electrons, ions, and ozone. Most preferably, the discharge devices generate plasma.

[0048] Air compressor 3 is located at the lower part of the main body, and the air compressor 3 is connected to the discharge device through a third pipe;

[0049] In this embodiment, both the tank 7 and the container 11 have microporous aeration stones 13 embedded in their bottoms. The first pipe and the second pipe are respectively connected to the microporous aeration stones at the bottom of the tank 7 and the container 11. Preferably, in one embodiment of this invention, the tank is provided with 5 microporous aeration stones connected to 5 one-way stop valves and 5 discharge devices, and the container has 1 microporous aeration stone connected to 1 one-way valve and 1 discharge device. One discharge unit 6 includes 6 discharge devices, each of which can operate independently.

[0050] This invention includes a solid material cleaning system for fruits and vegetables (in tank 7), a liquid material pesticide residue degradation and sterilization system for fruit and vegetable juice / pulp (in tank 11), and a wastewater treatment system for cleaning wastewater (in cleaning wastewater purification and recycling machine 16). Ion-activated gas is bubbled and activated by microporous aeration stones 13 to activate the water in tank 7 and the fruit and vegetable juice / pulp in tank 11, achieving pesticide residue degradation and sterilization. This invention can operate the solid material cleaning system or the liquid material pesticide residue degradation and sterilization system simultaneously or independently. It can also be combined synergistically to first clean and reduce pesticide residues in fruits and vegetables, then juice / pulp the cleaned fruits and vegetables for pesticide residue degradation and sterilization, achieving uniform treatment through bubbling. At the same time, the activating gas is bubbled through the microporous aeration stone to activate water and wash fruits and vegetables. On the one hand, the activating gas can be fully dissolved in the water to form plasma activated water, realizing the effective transfer of active groups; on the other hand, when the bubbles rise, they impact the fruits and vegetables, causing them to vibrate and tumble, which can effectively wash away the debris in the uneven crevices of the fruit and vegetable surface and clean and sterilize them, thereby achieving the purpose of efficient cleaning.

[0051] In the above scheme, as a preferred embodiment, a drain pipe 9 is connected to one side of the tank 7, a material basket 15 is embedded inside the tank 7, and a cover is provided on the top. The material basket 15 can be lifted, tilted, and the material replaced. A first gas discharge pipe 8 communicating with the inside of the tank 7 is provided on the cover.

[0052] In one embodiment of the present invention, preferably, a second gas discharge pipe 12 communicating with the interior of the tank 11 is provided on the upper part of the tank 11.

[0053] In one embodiment of this utility model, preferably, both the first gas discharge pipe 8 and the second gas discharge pipe 12 are made of aluminum foil.

[0054] In one preferred embodiment of this utility model, it further includes:

[0055] The water-stopping unit 4 includes multiple one-way water-stopping valves, which are arranged on the left side of the main body and below the tank 7. The multiple one-way water-stopping valves are connected to the tank 7 through several fourth pipes.

[0056] A one-way valve 10 is located on the right side of the main body and below the tank 11. The one-way valve is connected to the tank 11 through a fifth pipe.

[0057] A water receiving tank 5 is located at the bottom of the main body, next to the air compressor 3, and is connected to several of the fourth and fifth pipes. The water-stopping unit 4 and the one-way valve 10 are used to discharge excess water during machine operation, preventing backflow that could affect the discharge unit 6.

[0058] The first rotor flow meter and the second rotor flow meter are both located on the right-center front of the main body and below the control panel 14. Several first rotor flow meters 14a are each connected to the microporous aeration stone of the tank through several first pipes. The second rotor flow meter 14b is connected to the microporous aeration stone of the tank through a second pipe.

[0059] In one embodiment of this utility model, preferably, the bottom of the tank is provided with 5 microporous aeration stones, the bottom of the container is provided with 1 microporous aeration stone in connection, and the discharge unit 6 includes 6 discharge devices, with one discharge device corresponding to one microporous aeration stone.

[0060] In one embodiment of this utility model, preferably, the water-stopping unit 4 includes 5 one-way water-stopping valves, with one one-way water-stopping valve corresponding to each microporous aeration stone.

[0061] In one embodiment of this utility model, preferably, the tank 7 has dimensions of 220mm*220mm*210mm and a volume of about 10L, which can meet the maximum fruit and vegetable processing capacity of 2kg, and the container 11 has a volume of 920mL, which can meet the maximum liquid processing capacity of 800mL.

[0062] In one embodiment of this utility model, preferably, there are a total of 6 rotor flow meters. Five first rotor flow meters 14a are provided, and the five first rotor flow meters are respectively connected to five microporous aeration stones of the tank body 7 through several first pipes. One second rotor flow meter 14b is provided, which is connected to the microporous aeration stone at the bottom of the tank body 11 through the second pipe. The rotor flow meters can control the size of the activation gas flow rate, and the flow rate of each rotor flow meter can be adjusted within the range of 0.7-7 liters / minute.

[0063] In one embodiment of this utility model, preferably, the discharge unit has a discharge voltage of about 8.5 kV, the discharge power of a single discharge unit is 30W, the discharge power of the tank is adjustable from 30W to 150W, and the discharge power of the container is not adjustable and is 30W.

[0064] In one embodiment of this utility model, preferably, the drainage pipe 9 is connected to an external cleaning wastewater purification and recycling machine 16. After coarse filtration, fine filtration and plasma micro-nano bubble sterilization treatment, the water quality can reach the drinking water standard and can be introduced into the tank 7 for recycling.

[0065] In one embodiment of this utility model, preferably, a caster wheel 2 is provided below the main body.

[0066] In one preferred embodiment of this utility model, it further includes a control panel 14, located on the upper right side of the front of the main body. This control panel includes a timer, a compressor knob, a drain knob, a buzzer, an emergency stop button, a power-on knob, a pressure gauge, a discharge start button, a discharge stop button, a rocker-shaped button 14c, a first rotor flowmeter 14a, a second rotor flowmeter 14b, and an alarm light. The rotor flowmeters on the control panel can control the flow rate of the activating gas. The rocker-shaped button 14c on the control panel can control the number of discharges from the discharge unit 6. The control panel can control both the discharge and draining systems.

[0067] This utility model provides an integrated machine for plasma pesticide residue removal and cleaning wastewater purification and recycling, and its cleaning method. The lower surface of the integrated machine body is fixedly connected with casters 2. An air compressor 3 is fixed to the bottom of the integrated machine body. During whole fruit and vegetable cleaning, the air compressor 3 first operates, then the water-stopping unit 4 discharges excess water into the water collection tank 5. The air compressor 3 generates high-pressure gas which enters the discharge device and initiates discharge, generating active substances. The ion-activated gas passes through the water-stopping unit 4 and enters the fruit and vegetable cleaning tank 7. Byproduct gases generated during the process are discharged through the first gas discharge pipe 8. After processing, the experimental object is removed. The remaining activated water can be introduced into the cleaning wastewater purification and recycling machine 16 through the drainage pipe 9. After coarse filtration, fine filtration, and plasma micro-nano bubble sterilization treatment, it is introduced into the tank 7 for recycling or directly discharged through the drainage pipe 9. During the sterilization of fruit and vegetable juice / pulp, the air compressor 3 first operates, then the one-way valve 10 discharges excess water into the water receiving tank 5. High-pressure gas generated by the air compressor 3 enters the discharge device and initiates discharge. The activated gas generated by the discharge device enters the tank 11, which can hold the fruit and vegetable juice, through the second pipe. Residual gas generated during the process is discharged through the second gas discharge pipe 12. This method can operate the solid material cleaning system (such as fruits and vegetables) and the liquid material pesticide residue degradation and sterilization system (such as fruit and vegetable juice / pulp) simultaneously or separately. They can also be combined synergistically, first cleaning and degrading pesticide residues in the fruits and vegetables, then juicing / pulping the cleaned fruits and vegetables before pesticide residue degradation and sterilization, thus achieving highly efficient cleaning.

[0068] In one embodiment of this utility model, preferably, the air compressor 3 operates, and then the water-stopping unit 4 discharges excess water into the water receiving tank 5. The air compressor generates high-pressure gas which enters the discharge device and starts discharging, generating active substances. The ion-activated gas passes through the water-stopping unit 4 and enters the fruit and vegetable washing tank. The by-product gas generated during the process is discharged through the first gas discharge pipe 8. After the process is completed, the experimental object is removed, and the remaining activated water can be introduced into the cleaning wastewater purification and recycling machine 16 through the drainage pipe 9. After coarse filtration, fine filtration and plasma micro-nano bubble sterilization treatment, it is introduced into the tank 7 for recycling or directly discharged through the drainage pipe 9.

[0069] The air compressor generates high-pressure gas which enters the discharge device and starts discharging. The activated gas generated by the discharge device enters the fruit and vegetable juice tank 11 through the one-way valve (detachable) 10. The residual gas generated during the process is discharged through the aluminum foil tube second gas discharge pipeline 12.

[0070] This utility model also provides a method for cleaning fruits and vegetables using the integrated plasma pesticide residue removal and wastewater purification and recycling machine, including three cleaning and sterilization methods:

[0071] Cleaning and sterilization method 1: Solid material cleaning system: Place fruits and vegetables in the cleaning tank, add an appropriate amount of water, run the device, and clean the fruits and vegetables while preparing plasma-activated water, so as to achieve cleaning, sterilization and degradation of pesticide residues in whole fruits and vegetables.

[0072] Cleaning and sterilization method two: Liquid material pesticide residue degradation and sterilization system: Place an appropriate amount of fruit and vegetable juice / pulp into the tank of the fruit and vegetable juice, run the device, and sterilize the fruit and vegetable juice / pulp and degrade pesticide residues through plasma-activated gas.

[0073] Cleaning and sterilization method three: Co-cleaning and sterilization: First, clean the whole fruit, then make juice / pulp, and finally degrade and sterilize the liquid material for pesticide residues.

[0074] The solid material cleaning system of Method 1 and the liquid material pesticide residue degradation and sterilization system of Method 2 can operate simultaneously or independently.

[0075] To enable those skilled in the art to better understand the technical solution of this utility model, such as Figure 1-4 As shown, this utility model will be further described below:

[0076] A plasma pesticide residue removal and wastewater purification and recycling integrated machine includes:

[0077] The main body 1 is box-shaped; casters 2 are provided at the bottom of the main body.

[0078] The trough 7 is disposed on the upper part of the main body;

[0079] Tank 11 is disposed on the upper part of the main body and located on one side of the trough 7;

[0080] The discharge unit 6 includes multiple discharge devices, each with a discharge voltage of 8.5 kV, ionizing air. These discharge devices are positioned at the upper part of the main body, adjacent to the tank 11 and the trough 7. Several of these devices are connected to the trough 7 via several first pipes, while the remaining devices are connected to the tank 11 via second pipes. Preferably, the active substance generated by the discharge unit 6 can be a combination of various gases such as free radicals, electrons, ions, and ozone. Most preferably, the discharge devices generate plasma.

[0081] An air compressor 3 is disposed at the lower part of the main body, and the air compressor 3 is connected to each of the discharge devices through a third pipe;

[0082] The control panel 14 is located on the upper right side of the front of the main body and includes a timer, a compressor knob, a drain knob, a buzzer, an emergency stop button, a power-on knob, a pressure gauge, a discharge start button, a discharge stop button, a rocker button 14c, a first rotor flow meter 14a, a second rotor flow meter 14b, and an alarm light.

[0083] The water-stopping unit 4 includes multiple one-way water-stopping valves, which are arranged on the left side of the main body and below the tank 7. The multiple one-way water-stopping valves are connected to the tank 7 through several fourth pipes.

[0084] A one-way valve 10 is located on the right side of the main body and below the tank 11. The one-way valve is connected to the tank 11 through a fifth pipe.

[0085] A water receiving tank 5 is located at the bottom of the main body, next to the air compressor 3, and is connected to several of the fourth and fifth pipes. The water-stopping unit 4 and the one-way valve 10 are used to discharge excess water during machine operation, preventing backflow that could affect the discharge unit 6.

[0086] The first rotor flowmeter 14a and the second rotor flowmeter 14b are both located on the right-center front of the main body and below the control panel 14. Several first rotor flowmeters 14a are connected to the microporous aeration stone of the tank through several first pipes, and the second rotor flowmeter 14b is connected to the microporous aeration stone of the tank through a second pipe.

[0087] A material basket 15 is embedded inside the trough, and the material basket 15 can be lifted, tilted, and replaced.

[0088] The cleaning wastewater purification and recycling machine 16 is connected to the drainage pipe 9. After coarse filtration, fine filtration and plasma micro-nano bubble sterilization treatment, the water quality can reach the drinking water standard and can be introduced into the tank 7 for recycling.

[0089] Both the trough 7 and the tank 11 have microporous aeration stones 13 embedded in their bottoms. The first pipe and the second pipe are respectively connected to the microporous aeration stones at the bottom of the trough 7 and the tank 11. A one-way valve 10 is installed on the second pipe. The one-way valve 10 is detachable.

[0090] A drain pipe 9 is connected to one side of the tank 7. A material basket 15 is embedded inside the tank 7, and a cover is provided on the top. The material basket 15 can be lifted, tilted, and the material replaced. A first gas discharge pipe 8 communicating with the interior of the tank 7 is provided on the cover. A second gas discharge pipe 12 communicating with the interior of the tank 11 is provided on the top of the tank 11. Both the first gas discharge pipe 8 and the second gas discharge pipe 12 are made of aluminum foil tubing.

[0091] In this embodiment, the discharge unit 6 has six discharge devices. The generated plasma gas can be supplied to the five fruit and vegetable washing tanks 7 and the one fruit and vegetable juice tank 11 through several corresponding first and second pipes. Each discharge element is individually controlled, making it easy to select the amount of plasma gas required for the processed object. The dimensions of the fruit and vegetable washing tank 7 are 220mm*220mm*210mm, with a volume of about 10L, which can meet the maximum fruit and vegetable processing capacity of 2kg. Five microporous aeration stones 13 are embedded in the bottom of the fruit and vegetable washing tank 7. Each microporous aeration stone 13 is connected to a first pipe. Five one-way stop valves are connected to the bottom of the fruit and vegetable washing tank 7. Each one-way stop valve is connected to a fourth pipe. A drain pipe 9 is connected to the left side of the fruit and vegetable washing tank 7. The drain pipe 9 is connected to a washing wastewater purification and recycling machine 16. A first gas discharge pipe 8 is connected to the upper cover of the fruit and vegetable washing tank 7 to discharge residual gas.

[0092] In this embodiment, the volume of the fruit and vegetable juice tank 11 is 920mL, which can meet the maximum liquid processing capacity of 800mL, and a certain space and vent are reserved to prevent the liquid from foaming and overflowing during the processing. A microporous aeration stone 13 is embedded at the bottom of the fruit and vegetable juice tank 11, and the microporous aeration stone 13 is connected to the second pipe. A one-way valve 10 is connected to the bottom of the fruit and vegetable juice tank 11, and the one-way valve 10 is connected to the fifth pipe. The upper part of the fruit and vegetable juice tank 11 is magnetically attached to the second gas discharge pipe 12 to discharge residual gas.

[0093] A cleaning method for an integrated plasma pesticide residue removal and wastewater purification and recycling machine includes the following steps:

[0094] S1. Pour an appropriate amount of water into the fruit and vegetable washing tank 7;

[0095] S2. Connect the power supply, pull out the emergency stop button, turn on the power-on and compressor knob on the control panel 14, and power on the main body 1 of the plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine and the air compressor 3. Check whether the rotor flow meter 14a on the control panel 14 is in the air supply state. Control the amount of activation gas by adjusting the air intake of rotor flow meter 14a or closing the air intake channel.

[0096] S3. Turn on the discharge start button on control panel 14 and ventilate for 1-2 minutes to remove residual water from the pipeline;

[0097] S4. Place the fruits and vegetables to be cleaned into the fruit and vegetable cleaning tank 7, turn on the boat-shaped button 14c on the control panel 14, and control the discharge power by controlling the number of times the boat-shaped button 14c is turned on.

[0098] S5. After the experiment is over, first turn off the boat-shaped button 14c, then turn on the drain knob on the control panel 14 to drain the water through the drain pipe 9. Then turn off the drain knob, discharge stop button, power on and compressor knob on the control panel 14 in sequence, and finally cut off the power.

[0099] Taking the degradation of pesticide residues on the surface of apples as an example, in order to determine the optimal degradation efficiency of pesticide residues on the surface of apples by different discharge power, discharge time and gas flow rate, the present invention has conducted a large number of experiments.

[0100] To clarify the degradation effects of different discharge powers on the residues of five pesticides—carbendazim, imidacloprid, tebuconazole, pyraclostrobin, and abamectin—on the surface of apples, such as... Figure 5 As shown, the curves represent the residues of five pesticides on the surface of apples after the same number of apples were washed with plasma-activated water of different discharge powers in tank 7 for fruit and vegetable washing. It can be seen that when the plasma discharge power is 120W, the plasma-activated water produced can better balance the effects of pesticide residue degradation and energy saving.

[0101] To clarify the degradation effects of different discharge times on the residues of five pesticides—carbendazim, imidacloprid, tebuconazole, pyraclostrobin, and abamectin—on the surface of apples, such as... Figure 6 As shown, the curves represent the residues of five pesticides on the surface of apples after the same number of apples were washed with plasma-activated water at different discharge times in tank 7 for fruit and vegetable washing. It can be seen that when the plasma discharge time is 3 minutes, the plasma-activated water produced can better balance the degradation of pesticide residues and energy saving.

[0102] To clarify the degradation effects of different discharge gas flow rates on the residues of five pesticides—carbendazim, imidacloprid, tebuconazole, pyraclostrobin, and abamectin—on the surface of apples, such as... Figure 7 As shown, the curves represent the residues of five pesticides on the surface of apples after the same number of apples were washed with plasma-activated water of different discharge gas flow rates in tank 7 for fruit and vegetable washing. It can be seen that when the plasma discharge gas flow rate is 3L / min, the plasma-activated water produced can better balance the degradation of pesticide residues and energy saving.

[0103] A method for pesticide residue degradation and sterilization using an integrated plasma pesticide residue removal and cleaning wastewater purification and recycling machine, specifically including the following steps:

[0104] S1. Connect the power supply, pull out the emergency stop button, turn on the power-on and compressor knobs on the control panel 14, and power on the main body 1 of the plasma pesticide residue removal and cleaning wastewater purification and recycling integrated machine and the air compressor 3. Check whether the rotor flow meter 14b on the control panel 14 is in the air supply state. Control the amount of activation gas by adjusting the air intake of the rotor flow meter 14b or closing the air intake channel.

[0105] S2. Turn on the discharge start button on control panel 14, let the air flow for 1-2 minutes, and check for leaks.

[0106] S3. Place the fruit and vegetable juice / pulp to be sterilized into the fruit and vegetable juice tank 11, and turn on the boat-shaped button 14c on the control panel 14 to carry out pesticide residue degradation and sterilization treatment.

[0107] S4. After the experiment, first turn off the boat-shaped button 14c, then turn off the drain knob, discharge stop button, power on and compressor knob on the control panel 14 in sequence, and finally cut off the power supply. Remove the fruit and vegetable juice container 11 and pour out the fruit and vegetable juice / pulp.

[0108] The working principle of the above embodiments is as follows: The discharge device ionizes atmospheric pressure at normal pressure to generate the required active gas. The fruit and vegetable cleaning unit is mainly responsible for cleaning fruits and vegetables. The fruits and vegetables to be treated are placed in the fruit and vegetable cleaning tank, and the plasma active gas is used to activate the water to complete the cleaning process. The active substances in the plasma-activated water react and collide with organic pollutants on the surface of the fruits and vegetables to form small molecule volatile substances, which are removed from the surface. At the same time, it reacts with bacteria and microorganisms, destroying their cell walls, thereby achieving a sterilization effect. During this process, the desired effect can be achieved by controlling the discharge power, gas flow rate, and treatment time. The fruit juice pesticide residue degradation and sterilization unit mainly uses the active gas generated by plasma to treat the fruit juice / pulp and other liquids in the fruit and vegetable juice tank to achieve the effect of pesticide residue degradation and sterilization. During this process, the desired effect can be achieved by controlling the gas flow rate and treatment time.

[0109] Compared with the prior art, this invention has the following advantages: The device has a reasonable structural design, allowing for simultaneous fruit and vegetable washing and plasma-generated active gas activation of water. Bubbling through microporous aeration stones ensures that the generated active substances dissolve more evenly and fully into the liquid, achieving effective transfer of active groups. Furthermore, the bubbling causes the fruits and vegetables to vibrate and tumble, effectively washing away debris from uneven surfaces and crevices, resulting in more thorough cleaning, shorter working time, and improved efficiency. The material basket inside the tank can be lifted, tilted, and its contents replaced. Simultaneously, the device can be adjusted... The cleaning intensity is controlled by parameters such as discharge power and gas flow rate. The wastewater is purified and recycled through the cleaning wastewater treatment system, which saves costs, reduces wastewater discharge, and achieves the goal of efficient cleaning and degradation of pesticide residues. It is not limited to cleaning, degradation of pesticide residues and sterilization of solid or liquid materials. It can operate the solid material cleaning system for whole fruits and vegetables and the liquid material pesticide residue degradation and sterilization system for fruit and vegetable juice / pulp at the same time or separately. It can also be combined in a coordinated manner. Fruits and vegetables are first cleaned and pesticide residues are degraded. Then, the cleaned fruits and vegetables are juiced / pulp and pesticide residues are degraded and sterilized.

[0110] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0111] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A plasma pesticide residue removal and wastewater purification and recycling integrated machine, characterized in that, include: The main body is box-shaped; A trough, which is disposed on the upper part of the main body; A tank body is disposed on the upper part of the main body and located on one side of the trough body; The discharge unit includes multiple discharge devices that generate plasma. The multiple discharge devices are located on the upper part of the main body and next to the tank and the trough. Several discharge devices are connected to the trough through several first pipes, and the remaining discharge devices are connected to the tank through second pipes. An air compressor is located at the lower part of the main body, and the air compressor is connected to the discharge device through a third pipe; The bottom of both the trough and the tank is embedded with microporous aeration stones, and several first pipes and second pipes are respectively connected to the microporous aeration stones at the bottom of the trough and the tank.

2. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 1, characterized in that, A drainage pipe is connected to one side of the tank, a material basket is embedded inside the tank, and a cover is provided on the top. A first gas discharge pipe communicating with the inside of the tank is provided on the cover.

3. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 1, characterized in that, The upper part of the tank is provided with a second gas discharge pipe that communicates with the inside of the tank.

4. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 1, characterized in that, Also includes: The water-stopping unit includes multiple one-way water-stopping valves, which are arranged on the left side of the main body and located below the tank. The multiple one-way water-stopping valves are connected to the tank through several fourth pipes. A one-way valve is located on the right side of the main body and below the tank body, and the one-way valve is connected to the tank body through a fifth pipe; A water receiving trough is provided at the bottom of the main body, the water receiving trough is located next to the air compressor, and the water receiving trough is connected to several of the fourth pipes and the fifth pipes; The first rotor flow meter and the second rotor flow meter are both located on the right side of the front of the main body. Several first rotor flow meters are each connected to the microporous aeration stone of the tank through several first pipes. The second rotor flow meter is connected to the microporous aeration stone of the tank through a second pipe.

5. The integrated plasma pesticide residue removal and cleaning wastewater purification and recycling machine as described in claim 1, characterized in that, The bottom of the tank is provided with 5 microporous aeration stones, and the bottom of the container is provided with 1 microporous aeration stone connected to it. The discharge unit includes 6 discharge devices, and one discharge device is provided for each microporous aeration stone.

6. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 4, characterized in that, The main body is equipped with casters at the bottom.

7. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 1, characterized in that, The tank has a volume of 10L, and the container has a volume of 900-1000mL.

8. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 4, characterized in that, The air flow rate of each rotor flow meter is adjustable from 0.7 to 7 liters per minute.

9. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 5, characterized in that, The discharge unit has a discharge voltage of 8.5 kV, and the discharge power of a single discharge unit is 30W. The discharge power of the tank is adjustable from 30W to 150W, and the discharge power of the container is 30W.

10. The integrated plasma pesticide residue removal and wastewater purification and recycling machine as described in claim 2, characterized in that, The drainage pipeline is connected to an external cleaning wastewater purification and recycling treatment machine.

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