Integrated organic wastewater treatment system and method with efficient iron powder recycling function

Abstract

The invention discloses an integrated organic wastewater treatment system and method with an efficient iron powder recycling function. The system comprises a reaction containing cavity, a magnetic coupling driving assembly, an iron powder reciprocating recycling assembly and a control assembly. The magnetic coupling driving assembly comprises an impeller installed in the discharge pipe, the impeller is driven by water flow in the discharge pipe and drives a DaVinci rotating disc to rotate, an inner ring of incomplete gear and an outer ring of incomplete gear are arranged on the DaVinci rotating disc and meshed with a lead screw pinion located between the inner ring of incomplete gear and the outer ring of incomplete gear respectively, and the DaVinci rotating disc rotates in one direction. The lead screw pinion can periodically rotate forwards and backwards, so that the lead screw sliding table and the adsorption magnet which are mounted on the lead screw are driven to do linear reciprocating motion, and unreacted iron powder in the reaction containing cavity is recycled. According to the device, iron powder can be recycled while organic wastewater is effectively treated, the utilization rate of the iron powder is increased, water energy can be effectively utilized, and energy consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of organic wastewater treatment, and specifically to an integrated organic wastewater treatment system and method with efficient iron powder recovery function. Background Technology

[0002] Industrial organic wastewater is a complex wastewater generated during industrial production processes. It contains a large amount of organic matter and has a high chemical oxygen demand (COD), causing serious environmental pollution. COD is an important parameter for measuring the degree of organic pollution in water bodies; high COD indicates the presence of a large amount of non-degradable organic matter, posing a significant threat to aquatic environments and ecosystems. Industrial organic wastewater treatment is an indispensable part of environmental protection and sustainable development, aiming to mitigate the pollution impact of industrial activities on natural water bodies. Industrial organic wastewater has a wide range of sources, covering various manufacturing, mining, energy production, and chemical industries. Its composition is complex and diverse, and depending on the source, it can contain organic matter, inorganic salts, heavy metal ions, suspended solids, oils, acidic and alkaline substances, and various toxic and harmful chemicals.

[0003] Currently, there are five common technologies for treating organic wastewater: traditional biological treatment, traditional chemical treatment, membrane treatment, activated carbon adsorption, and advanced oxidation processes. The first four technologies have significant drawbacks, such as low treatment efficiency, long treatment cycles, high costs, and substantial resource waste. Advanced oxidation processes, a series of highly efficient and deep treatment technologies that have rapidly developed in the water treatment field in recent years, rely on generating highly reactive hydroxyl radicals to achieve rapid oxidative decomposition of recalcitrant organic matter, microorganisms, and inorganic pollutants in the water.

[0004] While this advanced oxidation process boasts high treatment efficiency, it is not without its flaws. Treating organic wastewater using this method inevitably generates a large amount of iron-containing sludge. Furthermore, existing systems for treating iron-containing sludge are mostly separate systems, failing to integrate closely with the wastewater treatment process, resulting in resource waste and low treatment efficiency.

[0005] Therefore, it is particularly important to develop a device that can efficiently recover iron powder while treating wastewater. Summary of the Invention

[0006] Current organic wastewater treatment devices inevitably suffer from serious drawbacks such as high cost, low treatment efficiency, inability to effectively utilize energy, and waste of necessary catalyst iron powder during the treatment process. Therefore, this invention provides an integrated organic wastewater treatment system and method with highly efficient iron powder recovery capabilities. This invention can effectively treat organic wastewater while simultaneously recovering iron powder, improving iron powder utilization. Furthermore, this device can effectively utilize water energy, reducing energy consumption.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: An integrated organic wastewater treatment system with efficient iron powder recovery function, including The reaction chamber includes an inlet pipe, a feed inlet and a discharge pipe connected thereto, as well as several circular baffles and annular through-hole guide plates spaced apart within the chamber. A magnetic coupling drive assembly includes an impeller installed inside a discharge pipe, an inner magnet mounted on the impeller, and a magnetic coupling outer magnetic ring rotatably mounted at a corresponding position outside the discharge pipe, the magnetic coupling outer magnetic ring being rotatably connected to the Da Vinci turntable; The iron powder reciprocating recycling component includes a Da Vinci turntable, which has two incomplete gears, inner and outer, with the same number of teeth, and each gear meshes with a lead screw pinion located between them. The lead screw pinion is connected to a lead screw, and a lead screw slide and an adsorption magnet are installed on the lead screw. The control components are used to monitor and adjust the inlet water flow rate, control the timed addition of iron powder, and control the magnetic cycle of the adsorption magnet.

[0008] As an improvement to the above technical solution: The water inlet pipe and the discharge pipe are respectively located at both ends of the reaction chamber; the feed inlet is opened on the side wall of the reaction chamber and is connected to the funnel discharge pipe.

[0009] A water pump and a water flow sensor are connected to the inlet of the water inlet pipe.

[0010] The hopper feed pipe is connected to a relay to control the timed feeding of iron powder.

[0011] The annular through-hole guide plate has several through holes of equal diameter distributed circumferentially on its surface. These through holes are alternately arranged with the circular baffle, and there are three sets of them at equal intervals.

[0012] The orthographic projection of the circular baffle onto the annular through-hole guide plate is located within the circle containing the through-hole.

[0013] The annular through-hole guide plate guides and accelerates the water flow through the through-hole structure, while the circular baffle prevents the water flow from forming turbulence.

[0014] As an improvement to the above technical solution: The inner magnet is disposed in the circumferential direction of the impeller, and the magnetic coupling outer magnetic ring is aligned with the axial direction of the impeller, with an outer magnet installed in its circumferential direction.

[0015] The magnetic coupling outer magnetic ring is rotatably mounted on the outer wall of the discharge pipe via a bearing.

[0016] The magnetically coupled outer magnetic ring is rotatably connected to the Da Vinci turntable via a fixed bracket.

[0017] As an improvement to the above technical solution: The da Vinci turntable has several slots to reduce weight and material usage.

[0018] The outer ring gear of the incomplete gear has internal teeth, and the inner ring gear has external teeth.

[0019] The Da Vinci turntable rotates in one direction. Due to its special meshing relationship with the lead screw and pinion, the lead screw and pinion can achieve forward and reverse rotation. Since the number of teeth on the inner and outer incomplete gears is equal, the number of forward and reverse rotations of the lead screw and pinion must also be equal.

[0020] The lead screw is installed through the lead screw support, and the rotational motion of the lead screw pinion is converted into the reciprocating motion of the magnet attracted on the lead screw slide.

[0021] The adsorption magnet is fixed to the lead screw slide, and its shape is set to an arc surface that matches the bottom outer wall of the reaction chamber to improve the coverage area.

[0022] The adsorption magnet is connected to a transistor drive circuit to control the periodic change of its magnetism. When the adsorption magnet slides back and forth to the front end of the reaction chamber, its magnetism is relatively weak to avoid affecting the treatment of newly entering organic wastewater. At the same time, when the adsorption magnet slides back and forth to the rear end of the reaction chamber, its magnetism is relatively strong to facilitate the adsorption and recovery of unreacted iron powder.

[0023] As an improvement to the above technical solution: The control components include a microcontroller and an ATF panel. The microcontroller is communicatively connected to the relay, the water flow sensor, and the transistor drive circuit for integrated control.

[0024] The microcontroller is an Arduino microcontroller, which is connected to the ATF panel via a circuit.

[0025] In order to solve its technical problem, the present invention also adopts the following technical solution: An integrated organic wastewater treatment method with efficient iron powder recovery function, including S1 Wastewater Influent and Flow Rate Control Organic wastewater flows in from the inlet, and the flow rate is monitored in real time by a water flow sensor, which then feeds the data back to the microcontroller. The microcontroller adjusts or maintains a stable inlet flow rate by adjusting the pump speed, so that the residence time of wastewater in the reaction chamber matches the treatment efficiency. S2 catalyst iron powder addition While organic wastewater flows into the reaction chamber, catalyst iron powder is added from the feed inlet, and the dosage and dosing cycle are controlled by a microcontroller. The microcontroller controls the relay to turn on and off through a timed program, thereby controlling the funnel feed pipe to achieve quantitative and timed addition, ensuring that the catalyst addition amount and timing are synchronized with the wastewater treatment volume and treatment cycle, and avoiding waste caused by over-addition; Treatment and Degradation of S3 Wastewater Organic wastewater and catalyst iron powder are mixed in the reaction chamber. The flow is accelerated and turbulent by the annular through-hole guide plate and the circular baffle, so that the organic wastewater and catalyst iron powder can be fully contacted and the mass transfer efficiency is improved. By alternating the arrangement of annular through-hole guide plates and circular baffles, the water flow path and velocity are controlled, thereby enhancing the turbulence effect; Organic wastewater degrades organic matter through oxidation-reduction reactions; S4 Magnetic Coupling and Iron Powder Recovery When the organic wastewater after the reaction is discharged from the discharge pipe, it drives the impeller to rotate, which in turn drives the Da Vinci turntable to rotate through magnetic coupling. The inner and outer incomplete gears on the Da Vinci turntable mesh with the lead screw and pinion, converting the unidirectional rotation of the Da Vinci turntable into the periodic forward and reverse rotation of the lead screw and pinion. Then, through the lead screw, the forward and reverse rotation is converted into the linear reciprocating motion of the lead screw slide, which in turn drives the adsorption magnet on the lead screw slide to perform periodic linear reciprocating motion, adsorbing the unreacted iron powder at the bottom of the reaction chamber. The microcontroller controls the transistor drive circuit to adjust the magnetic strength through pulse current, so as to control the magnetic strength of the adsorbed magnet to change periodically, so that the magnet is relatively weak when it slides back and forth to the front end of the reaction cavity and relatively strong when it slides back and forth to the rear end of the reaction cavity. S5 effluent detection and system regulation The treated organic wastewater is discharged through a discharge pipe, and the quality of the effluent is monitored. The monitoring results are fed back to the microcontroller to adjust the system operating parameters: adjust the influent flow rate, iron powder dosage and dosing cycle or the magnetic cycle of the adsorption magnet to ensure that the effluent water quality meets the standards stably.

[0026] This invention brings the following beneficial effects: The system of this invention has a reasonable and compact structure and ingenious design, achieving rational energy utilization and avoiding the environmental pollution caused by iron sludge generated in traditional organic wastewater treatment devices. It offers higher efficiency in treating organic wastewater, is energy-saving and environmentally friendly, and plays a significant role in promoting energy conservation, emission reduction, and environmental protection strategies. Specifically: 1. The impeller is driven to rotate by the water energy of the drainage. Through the magnetic coupling drive structure, the impeller can use the energy of the water flow to rotate and drive the operation of the magnetic coupling outer magnetic ring, Da Vinci turntable and iron powder reciprocating recovery component.

[0027] 2. The design of the Da Vinci turntable applies the Da Vinci turntable to the organic wastewater treatment system. It cleverly utilizes the characteristics of the inner and outer ring gears of the Da Vinci turntable to ensure precise transmission of the lead screw and pinion while enabling forward and reverse drive.

[0028] 3. By cooperating with the lead screw and pinion gear and the lead screw slide, the adsorption magnet is fixedly installed with the lead screw slide, so that the adsorption magnet can follow the lead screw slide to reciprocate back and forth, thereby realizing the recycling of iron powder.

[0029] 4. The design of the annular through-hole guide plate, combined with the circular baffle, allows the water to flow alternately between the annular guide plate and the baffle, increasing the Reynolds number of the water flow and enabling thorough mixing of organic wastewater and iron powder catalyst. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of an organic wastewater treatment system. Figure 2 This is a schematic diagram of the internal structure of the reaction chamber; Figure 3 This is a schematic diagram of the impeller and magnetic coupling structure; Figure 4 This is a schematic diagram of the impeller drive connection structure; Figure 5 A schematic diagram of the da Vinci turntable and lead screw pinion structure; Figure 6 This is a schematic diagram of a lead screw drive structure; Figure 7 A schematic diagram of an organic wastewater treatment system with control components.

[0032] Numbering on the map: 1, 2 - Main support; 3, 4 - Lead screw support; 5 - Water inlet; 6 - Feed inlet; 7 - Water outlet; 8 - Impeller; 9 - Reaction chamber; 10 - Iron powder reciprocating recovery component; 11 - Lead screw; 12 - Magnetic suction component; 13 - Annular through-hole guide plate; 14 - Lead screw pinion; 15 - Fixed bracket; 16 - Magnetic coupling outer magnetic ring; 17 - Circular baffle; 18 - Inner magnet; 19 - Outer magnet; 100 - Da Vinci turntable; 101 - Incomplete inner ring gear; 102 - Incomplete outer ring gear; 103 - Groove; 120 - Lead screw slide; 121 - Adsorption magnet; 20 - Funnel; 21 - Relay; 22 - Water flow sensor; 23 - Water pump; 24 - ATF panel; 25 - Arduino microcontroller; 26 - Transistor driver circuit. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Furthermore, the following description is for illustrative purposes and not for limitation, and sets forth specific details such as particular system structures and techniques to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted to avoid unnecessary detail that could obscure the description of the invention.

[0035] The first embodiment of the present invention relates to an integrated organic wastewater treatment system with efficient iron powder recovery function, as described above. Figure 1 ,include The reaction chamber 9, mounted on the main support 1, 2, includes a water inlet pipe, a feed inlet 6, and a discharge pipe connected thereto, as well as several circular baffles 17 and annular through-hole guide plates 13 spaced apart within the chamber. (Refer to...) Figure 2The inlet 5 and outlet pipe are respectively located at both ends of the reaction chamber 9. The feed inlet 6 is opened on the side wall of the chamber and is connected to the funnel feed pipe. The funnel feed pipe is connected to a relay 21 to control the timed addition of iron powder. A water flow sensor 22 and a water pump 23 are connected to the inlet 5 to monitor or adjust the water flow rate. The annular through-hole guide plate 13 has multiple circular through holes of equal diameter distributed circumferentially on its surface. These holes are alternately arranged with the circular baffles 17, with three sets of holes spaced at equal intervals and gaps at the bottom. The orthogonal projection of the circular baffles 17 onto the annular through-hole guide plate 13 is located within the circle of the through holes. The annular through-hole guide plate 13 guides and accelerates the water flow through the through-hole structure, while the circular baffles 17 hinder the water flow and form turbulence.

[0036] The magnetically coupled drive assembly includes an impeller 8 installed inside a discharge pipe. Referring to Figures 3 and 4, an inner magnet 18 is mounted on the impeller 8, and a magnetically coupled outer magnetic ring 16 is rotatably mounted at a corresponding position outside the discharge pipe. The magnetically coupled outer magnetic ring 16 is rotatably connected to the Da Vinci turntable 100. The inner magnet 18 is disposed on the circumferential edge of the impeller 8, and the magnetically coupled outer magnetic ring 16 is axially aligned with the impeller 8, with an outer magnet 19 also mounted on its circumferential edge. The magnetically coupled outer magnetic ring 16 is rotatably mounted on the outer wall of the discharge pipe via a bearing, and is rotatably connected to the Da Vinci turntable 100 via a fixed bracket 15.

[0037] The iron powder reciprocating recycling component 10 includes a Da Vinci turntable 100 and a magnetic suction component 12. (See reference...) Figure 5 , Figure 6 The Da Vinci turntable 100 has an inner ring incomplete gear 101 and an outer ring incomplete gear 102, but they have the same number of teeth and mesh with the lead screw pinion 14 located between them. The Da Vinci turntable 100 has multiple slots 103 to reduce weight and material usage. The lead screw pinion 14 is connected to a lead screw 11, which passes through the lead screw support 3, 4. A lead screw slide 120 and an adsorption magnet 121 are mounted on the lead screw 11. The outer ring incomplete gear 102 has internal teeth, and the inner ring incomplete gear 101 has external teeth. The Da Vinci turntable 100 driven by magnetic coupling rotates in one direction. Due to its special meshing relationship with the lead screw pinion 14, the lead screw pinion 14 can achieve forward and reverse rotation. Since the number of teeth of the inner and outer ring incomplete gears is equal, the number of forward and reverse rotations of the lead screw pinion 14 must also be equal, further driving the lead screw slide 120 and the adsorption magnet 121 of the magnetic attraction assembly 12 to reciprocate linearly.

[0038] The adsorption magnet 121 is detachably fixed to the lead screw slide 120, and its shape is set to an arc surface that matches the bottom outer wall of the reaction chamber 9 to improve the coverage area. The adsorption magnet 121 is connected to a transistor drive circuit 26 to control the magnetism of the adsorption magnet 121 to change periodically. When the adsorption magnet 121 slides back and forth to the front end of the reaction chamber 9, its magnetism is relatively weak, so as not to affect the treatment of newly entering organic wastewater. At the same time, when the adsorption magnet 121 slides back and forth to the rear end of the reaction chamber 9, its magnetism is relatively strong, so as to facilitate the adsorption and recovery of unreacted iron powder, so that it can be adsorbed back to the front end of the reaction chamber 9 to participate in the catalytic reaction again, thereby reducing the waste of iron powder.

[0039] Reference Figure 7 The control components are used to monitor and adjust the influent flow rate, control the timed addition of iron powder, and control the magnetic cycle of the adsorption magnet 121. The control components include a central control system device, a water flow control device, an iron powder addition control device, and an electromagnet control device. The central control system device includes a microcontroller and an ATF panel 24. The water flow control device includes a water flow sensor 22 and a water pump 23 to monitor and control the water flow rate to ensure sufficient power. The iron powder addition control device includes a funnel 20 and a relay 21 to timed addition of iron powder, allowing for full reaction of organic matter in the wastewater. The electromagnet control device includes a transistor drive circuit 26 to control the periodic change in the magnetism of the adsorption magnet 121, thereby fully utilizing the iron powder.

[0040] The microcontroller is communicatively connected to the relay 21, the water flow sensor 22, and the transistor drive circuit 26 for integrated control. The microcontroller is an Arduino microcontroller 25, which can perform data acquisition and processing, and coordinate the control of various modules. The Arduino microcontroller 25 is connected to the ATF panel 24 via a circuit to realize human-computer interaction.

[0041] The water flow sensor 22 is an ultrasonic flow meter. The water flow sensor 22 monitors the flow rate of organic wastewater in real time and transmits the data to the microcontroller. The microcontroller enables human-computer interaction and allows manual control of the water flow rate to ensure sufficient power.

[0042] The funnel 20 is used to store iron powder. The relay 21 controls the opening and closing of the valve of the funnel 20 according to the instructions of the microcontroller, thereby adjusting the amount and frequency of iron powder feeding to ensure that the iron powder reacts fully with the wastewater. The bottom of the funnel 20 is equipped with a vibration device to prevent iron powder from clogging and to improve the uniformity of feeding. The relay 21 is a solid-state relay.

[0043] In some embodiments, the central control system device is also equipped with Bluetooth for remotely monitoring and controlling the operating status of the system.

[0044] The second embodiment of the present invention relates to an integrated organic wastewater treatment process with efficient iron powder recovery function, comprising the following steps: S1 Wastewater Influent and Flow Rate Control Organic wastewater flows in from inlet 5, and the flow rate is monitored in real time by water flow sensor 22, and the data is fed back to the microcontroller; The microcontroller adjusts or maintains a stable inlet flow rate by adjusting the speed of the water pump 23, so that the residence time of wastewater in the reaction chamber 9 matches the treatment efficiency. S2 catalyst iron powder addition While organic wastewater flows into reaction chamber 9, catalyst iron powder is added from feed inlet 6, and the dosage and addition cycle are controlled by microcontroller. Based on actual industrial conditions, the dosage for low-concentration organic wastewater is 2g / time, with a dosing cycle of once every 12 minutes; the dosage for high-concentration organic wastewater is 30g / time, with a dosing cycle of once every 4 minutes; in general, a middle ground is adopted in terms of dosage and dosing cycle. The microcontroller controls the on / off state of relay 21 through a timed program, thereby controlling the feed pipe of the funnel to achieve quantitative and timed addition, ensuring that the catalyst addition amount and timing are synchronized with the wastewater treatment volume and treatment cycle, and avoiding waste caused by over-addition; Treatment and Degradation of S3 Wastewater Organic wastewater and catalyst iron powder are mixed in the reaction chamber 9. The flow is accelerated and turbulent by the annular through-hole guide plate 13 and the circular baffle 17, so that the organic wastewater and catalyst iron powder can be fully contacted and the mass transfer efficiency is improved. The alternating arrangement of the annular through-hole guide plate 13 and the circular baffle 17 controls the water flow path and velocity, thereby enhancing the turbulence effect. Organic wastewater degrades organic matter through oxidation-reduction reactions; S4 Magnetic Coupling and Iron Powder Recovery When the organic wastewater after the reaction is discharged from the discharge pipe, it drives the impeller 8 to rotate, which in turn drives the Da Vinci turntable 100 to rotate through magnetic coupling. The inner and outer two rings of incomplete gears on the Da Vinci turntable 100 mesh with the lead screw pinion 14, converting the unidirectional rotation of the Da Vinci turntable 100 into the periodic forward and reverse rotation of the lead screw pinion 14. Then, through the lead screw 11, the forward and reverse rotation is converted into the linear reciprocating motion of the lead screw slide 120, which in turn drives the adsorption magnet 121 on the lead screw slide 120 to perform periodic linear reciprocating motion, adsorbing the unreacted iron powder at the bottom of the reaction chamber 9. The microcontroller controls the transistor drive circuit 26 to adjust the magnetic strength through pulse current, so as to control the magnetic strength of the adsorbed magnet 121 to change periodically, so that the magnetic strength is relatively weak when it slides back and forth to the front end of the reaction cavity 9, and relatively strong when it slides back and forth to the rear end of the reaction cavity 9. Example: Magnet magnetic period: 50s; Magnet magnetic variation pattern: periodic sine curve; S5 effluent detection and system regulation The treated organic wastewater is discharged through a discharge pipe, and the quality of the effluent is monitored. The monitoring results are fed back to the microcontroller to adjust the system operating parameters: adjust the influent flow rate, iron powder dosage and dosing cycle or the magnetic cycle of adsorption magnet 121 to ensure that the effluent water quality meets the standards stably.

[0045] Another embodiment of the present invention relates to the specific application of the above-mentioned integrated organic wastewater treatment system and process with efficient iron powder recovery function.

[0046] Industrial organic wastewater with a COD of 4000 mg / L is introduced through inlet 5, with the flow rate controlled at 0.8 m / s. The flow rate is monitored in real-time by a water flow sensor 22 to ensure the required flow rate is met. Simultaneously, iron powder and persulfate are added through a funnel feed pipe. Based on relay 21, the iron powder is added in a timed and quantitative manner, with 5g of iron powder added at a time. The iron powder and persulfate are thoroughly mixed and reacted with the organic wastewater in the reaction chamber 9 through the cooperation of an annular through-hole guide plate 13 and a circular baffle 17. Before the reaction, the pH of the organic wastewater was measured to be 6.40; after the reaction, the pH was 6.93.

[0047] The wastewater discharged after the reaction drives the impeller 8 to rotate at a speed of 300 rad / min, causing the adsorption magnet 121 to reciprocate around the bottom of the reaction chamber 9 to recover unreacted iron powder. The adsorption magnet 121 is connected to the transistor drive circuit 26, and the magnetism of the adsorption magnet 121 changes periodically by current control, with a period of 50 seconds.

[0048] Comparative testing showed that without this system for iron powder recovery, approximately 2.3g of iron powder would be wasted when treating the same amount of industrial organic wastewater; however, using this system resulted in the recovery of 2.0g of iron powder. The COD content at effluent outlet 7 was measured at 46mg / L, indicating that the effluent quality met standards.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. Integrated organic wastewater treatment system with high-efficiency iron powder recovery function, characterized in that: Comprising ​ a reaction cavity, including a water inlet pipe, a feed inlet and a discharge pipe in communication therewith, and a plurality of circular baffles and annular through-hole guide plates arranged in the cavity; a magnetic coupling driving assembly, including an impeller mounted in the discharge pipe, an inner magnet mounted on the impeller, and a magnetic coupling outer magnet ring rotatably mounted at a corresponding position outside the discharge pipe, the magnetic coupling outer magnet ring being rotatably connected to the Da Vinci turntable; a ferrous powder reciprocating recovery assembly, including a Da Vinci turntable, an inner ring and an outer ring of incomplete gears being provided on the Da Vinci turntable and having equal number of teeth, and a lead screw pinion arranged between the inner ring and the outer ring and engaged with the inner ring and the outer ring, the lead screw pinion being connected with a lead screw, and a lead screw sliding table and an adsorption magnet being mounted on the lead screw; a control assembly for monitoring and adjusting the water flow rate, controlling the timing of ferrous powder feeding, and controlling the magnetic periodicity of the adsorption magnet.

2. The organic wastewater treatment system according to claim 1, characterized in that: a water pump and a water flow sensor are connected to the inlet of the water inlet pipe; the feed inlet is provided on the side wall of the reaction cavity and is connected with a hopper discharge pipe, and a relay is connected to the hopper discharge pipe to control the timing of ferrous powder feeding.

3. The organic wastewater treatment system according to claim 1, characterized in that: a plurality of through-holes are circumferentially and equidistantly distributed on the surface of the annular through-hole guide plate, and the circular baffles and the annular through-hole guide plates are alternately and interspersely arranged, and there are three groups of baffles and through-holes arranged at equal intervals; the orthographic projection of the circular baffles on the annular through-hole guide plate is within the range of the through-holes.

4. The organic wastewater treatment system according to claim 1, characterized in that: the inner magnet is arranged circumferentially on the impeller, and the magnetic coupling outer magnet ring is axially aligned with the impeller, and an outer magnet is mounted circumferentially on the magnetic coupling outer magnet ring.

5. The organic wastewater treatment system according to claim 1, characterized in that: the outer ring gear of the incomplete gears of the Da Vinci turntable is an inner gear, and the inner ring gear is an outer gear.

6. The organic wastewater treatment system according to claim 1, characterized in that: the Da Vinci turntable is rotated in one direction, so that the lead screw pinion can realize forward and reverse rotation, and because the number of teeth of the inner ring and the outer ring of the incomplete gears is equal, the number of turns of the lead screw pinion in forward and reverse rotation is also equal.

7. The organic wastewater treatment system according to claim 1, characterized in that: the adsorption magnet is fixed on the lead screw sliding table, and the shape of the adsorption magnet is set as an arc surface matched with the outer wall of the bottom of the reaction cavity to improve the coverage area.

8. The organic wastewater treatment system according to claim 1, characterized in that: the adsorption magnet is connected with a transistor drive circuit to control the periodic change of the magnetism of the adsorption magnet; when the adsorption magnet reciprocally slides to the front end of the reaction cavity, the magnetism thereof is relatively weak so as not to affect the treatment of the newly entered organic wastewater, and when the adsorption magnet reciprocally slides to the rear end of the reaction cavity, the magnetism thereof is relatively strong to facilitate the adsorption and recovery of the unreacted ferrous powder.

9. The organic wastewater treatment system according to claim 1, characterized in that: the control assembly includes a microcontroller and an ATF panel.

10. An integrated organic wastewater treatment method with efficient iron powder recovery function, characterized in that: The method comprises the following steps: S1 wastewater inlet and flow rate control organic wastewater flows into the water inlet, the flow rate is monitored in real time by the water flow sensor, and the data is fed back to the microcontroller. The microcontroller adjusts or maintains the stable water inflow rate by adjusting the water pump speed, so that the residence time of the wastewater in the reaction cavity matches the treatment efficiency; S2 Iron powder of S2 catalyst is added While the organic wastewater flows into the reaction cavity, iron powder of the catalyst is added from the feeding port, and the microcontroller controls the adding amount and adding period; The microcontroller controls the on-off of the relay through the timing program, and then controls the funnel discharge pipe to realize quantitative and timed adding, so as to ensure that the catalyst adding amount and timing are synchronized with the wastewater treatment amount and treatment period; S3 Treatment and degradation of wastewater The organic wastewater and the iron powder of the catalyst are mixed in the reaction cavity, and the flow guide acceleration and turbulent disturbance of the annular through-hole flow guide plate and the circular baffle make the organic wastewater and the iron powder of the catalyst fully contact; Through the alternate arrangement of the annular through-hole flow guide plate and the circular baffle, the water flow path and flow rate are controlled, and the turbulent effect is strengthened; The organic wastewater is degraded by redox reaction; S4 Magnetic coupling and iron powder recovery When the treated organic wastewater is discharged from the discharge pipe, the impeller is driven to rotate by the magnetic coupling, and the inner and outer incomplete gears on the da Vinci turntable are engaged with the inner and outer gears of the screw rod, so that the one-way rotation of the da Vinci turntable is converted into the periodic forward and reverse rotation of the screw rod gear, and then the forward and reverse rotation of the screw rod is converted into the linear reciprocating motion of the screw rod sliding table, and then the adsorbing magnet on the screw rod sliding table is driven to make periodic linear reciprocating motion to adsorb the unreacted iron powder at the bottom of the reaction cavity; The microcontroller controls the transistor drive circuit to adjust the magnetic strength through pulse current to control the periodic change of the magnetic property of the adsorbing magnet, so that the magnetic property of the adsorbing magnet is relatively weak when it reciprocates to the front end of the reaction cavity, and the magnetic property of the adsorbing magnet is relatively strong when it reciprocates to the rear end of the reaction cavity; S5 Water detection and system regulation The treated organic wastewater is discharged through the discharge pipe, and the water quality is monitored; The monitoring results are fed back to the microcontroller to adjust the system operation parameters: adjusting the water inflow rate, the iron powder adding amount and adding period, or the magnetic period of the adsorbing magnet, to ensure that the water quality meets the standard.

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