CN118239592A - Groundwater prosthetic devices of persistent organic pollutant - Google Patents

Abstract

The present invention discloses a groundwater remediation device for persistent organic pollutants, including a moving platform, a water inlet pipe, a filter cartridge, a catalytic oxidation cartridge, a connecting pipe, an ozone generator, a detection cartridge, a water outlet pipe, and a return pipe; the filter cartridge, the catalytic oxidation cartridge, and the detection cartridge are all placed on the moving platform; one end of the water inlet pipe is located in a pumping well, and the other end is connected to the filter cartridge through a water pump; the filter cartridge and the catalytic oxidation cartridge are connected through a connecting pipe, a filtering mechanism and a cleaning mechanism are installed in the filter cartridge, and a breaking mechanism and an ozone catalytic oxidation mechanism are provided in the catalytic oxidation cartridge; a conduit connects the catalytic oxidation cartridge and the detection cartridge, and the two ends of the return pipe are respectively connected to the bottom of the detection cartridge and the connecting pipe. The present invention can clean the conical filter screen more cleanly, and further prevent the conical filter screen from being blocked; it can expand the stirring range of groundwater, and can fully mix groundwater, catalyst, and ozone, and further improve the decomposition efficiency of organic pollutants in groundwater.

Description

A groundwater remediation device for persistent organic pollutants

Technical Field

The invention belongs to the technical field of groundwater remediation, and in particular relates to a groundwater remediation device for persistent organic pollutants.

Background technique

Common groundwater remediation technologies include extraction and treatment technology, bioremediation technology, PRB permeable reaction wall technology, natural attenuation monitoring technology, phytoremediation technology, in-situ chemical oxidation/reduction technology, etc. During in-situ remediation, remediation agents or ozone are introduced into the underground. Due to the wide underground area, it is easy to cause uneven groundwater remediation and residual organic pollutants.

After searching, the prior art announcement number CN113683180A is an ozone advanced oxidation system for in-situ and extraction treatment of groundwater, which includes an ozone preparation device and an oxidation reaction device. The ozone prepared by the ozone preparation device can be switched to an injection well at the anti-backflow tank of the oxidation reaction device for ozone in-situ oxidation or to an ozone reaction tower of the oxidation reaction device. The ozone reaction tower is filled with catalyst fillers. Under the catalysis of the catalyst, the ozone reacts with the sewage extracted to the ozone reaction tower to remove pollutants. The treatment process has the following disadvantages: although groundwater can be treated with ozone, the catalyst is not fully mixed with the ozone and groundwater, resulting in residual organic pollutants in the repaired groundwater.

After searching, the prior art announcement number CN115231735A is a device and method for repairing groundwater contaminated by organic pollutants. The device includes an extraction mechanism, an adsorption tank, a treatment tank and a recharge mechanism which are connected in sequence through pipelines. A first rotating shaft is provided in the treatment tank, one end of the first rotating shaft is connected to the output shaft of a motor provided above the treatment tank, and multiple groups of stirring rods are provided on the first rotating shaft. A piston tank is provided on the treatment tank, and a liquid outlet pipe provided on the upper part of the side wall of the piston tank is connected to a driving pipe. A third bevel gear is provided outside the driving pipe. A rotating ring is provided on the inner wall of the treatment tank, and a gear ring meshing with the third bevel gear is provided on the rotating ring. Multiple groups of wave circles are provided on the inner wall of the rotating ring. The method includes detection, extraction, repair treatment and recharge in sequence. The treatment process has the following disadvantages: the groundwater extracted by the extraction mechanism directly enters the adsorption tank for treatment. Since the groundwater carries a large amount of sediment, it will affect the effect of the activated carbon adsorption layer in removing some organic matter, some nitrogen-containing wastes and some microorganisms in the groundwater; thereby resulting in incomplete groundwater repair.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art and provide a groundwater remediation device for persistent organic pollutants. Through the cooperation of a filtering mechanism and a cleaning mechanism, the conical filter screen can be cleaned more thoroughly, and the conical filter screen can be further prevented from being blocked; through the cooperation of a mixing mechanism and a stirring mechanism on a breaking mechanism, the stirring range of the mixing fan blades on the groundwater can be expanded, and the groundwater, catalyst and ozone can be fully mixed, thereby further improving the decomposition efficiency of organic pollutants in the groundwater.

In order to achieve the above object, the technical solution adopted by the present invention is:

A groundwater remediation device for persistent organic pollutants comprises a moving platform, a water inlet pipe, a filter cartridge, a catalytic oxidation cartridge, a connecting pipe, an ozone generator, a detection cartridge, a water outlet pipe and a return pipe; the filter cartridge, the catalytic oxidation cartridge and the detection cartridge are all placed on the moving platform; one end of the water inlet pipe is located in a pumping well, and the other end is connected to the filter cartridge through a water pump; the filter cartridge and the catalytic oxidation cartridge are connected through a connecting pipe, a filtering mechanism and a cleaning mechanism are installed in the filter cartridge, and a breaking mechanism and an ozone catalytic oxidation mechanism are provided in the catalytic oxidation cartridge; a conduit connects the catalytic oxidation cartridge and the detection cartridge, and two ends of the return pipe are respectively connected to the bottom of the detection cartridge and the connecting pipe; the water outlet pipe is connected to the detection cartridge and is connected to the return well, the ozone generator is located on one side of the catalytic oxidation cartridge and is connected to the catalytic oxidation cartridge through an air inlet pipe; first, groundwater is pumped from the pumping well to the pass through the water pump Inside the filter cartridge, the mud and sand carried in the groundwater are filtered through the filtering mechanism, and the cleaning mechanism can clean the filtering mechanism to prevent the filtering mechanism from being blocked; then the filtered groundwater enters the catalytic oxidation cartridge through the water pump and the connecting pipe, and at the same time, the ozone in the ozone generator is introduced into the catalytic oxidation cartridge through the air inlet pipe, and the filtered groundwater is fully mixed and contacted with the catalyst and ozone through the catalytic oxidation mechanism and the breaking mechanism, and catalytic oxidation is carried out, so that the organic pollutants in the wastewater can be decomposed, and the groundwater can be further purified and repaired; the purified groundwater enters the detection cartridge through the conduit for detection, and the qualified groundwater enters the return well through the outlet pipe and flows back to the underground, while the unqualified groundwater returns to the catalytic oxidation cartridge through the return pipe for secondary purification, so as to further realize the long-lasting and continuous circulation repair of the groundwater body.

The filtering mechanism includes a turntable, a conical filter screen, a partition, a sedimentation plate, and a motor I; the motor I is fixed on the top of the filter cartridge, the turntable is located inside the filter cartridge and is connected to the output shaft of the motor I, a plurality of evenly distributed conical filter screens are arranged at the bottom of the turntable, adjacent conical filter screens are separated by partitions, and the partitions are fixed to the bottom of the turntable; a baffle is fixed to the side wall of the filter cartridge at the top of the turntable; the baffle blocks the end of the turntable located at the cleaning mechanism to prevent filtered groundwater from entering the cleaning mechanism; the motor I provides power to drive the turntable to rotate, and the turntable drives the conical filter screen and the partition to rotate, thereby rotating the conical filter screen to one side of the cleaning mechanism, making it convenient for the cleaning mechanism to clean the conical filter screen.

The cleaning mechanism comprises a shell, a cleaning brush, a support plate, a mounting ring, a motor III, and a collection box; the shell is fixed on the side wall of the filter cartridge and is connected to the filter cartridge; the support plate is composed of two upper and lower plates fixed by bolts, an arc groove and a square groove are provided inside the support plate, and the arc groove and the square groove are connected; a convex block is provided in the arc groove of the support plate, a rotating groove is provided on the top of the mounting ring, the mounting ring is movably connected in the arc groove, the convex block is connected in the rotating groove, and a gear ring is provided on the outer side wall of the mounting ring; the motor III is fixed at the bottom of the support plate, a gear III is provided on the output shaft, and the gear III is located at Inside the square groove; gear III is meshed with the gear ring; the collecting box is fixed inside the outer side and corresponds to the filter cartridge, and a sewage pipe is provided on the collecting box; a connecting seat is provided at the bottom of the mounting ring, and a block is provided on one side of the connecting seat. The cleaning brush is rotatably connected to the bottom of the mounting ring through the connecting seat, and the block enables the cleaning brush to contact the outer surface of the conical filter net, so as to better clean the conical filter net; the motor III provides power to drive the gear III to rotate, and the gear III drives the mounting ring to rotate along the arc groove through the gear ring, and the mounting ring drives the cleaning brush to rotate, so as to clean the conical filter net.

A power mechanism is provided inside the shell, and the power mechanism is connected to the support plate; the power mechanism includes a moving plate, a motor IV, a lead screw, a guide rod, and an electric push rod I; a pair of moving plates are provided, which are symmetrically installed on the inner wall of the shell; both ends of the lead screw are rotatably connected to the corresponding moving plates through bearings, and a pair of guide rods are provided, which are fixed to the moving plates on both sides of the lead screw; the motor IV is fixed to the top of the moving plate, and the output shaft is connected to one end of the lead screw; the support plate passes through the guide rod and is connected to the lead screw through a thread; the electric push rod I is fixed to the side wall of the shell, and the output end is connected to the moving plate; when the conical filter is cleaned , motor IV provides power to drive the lead screw to rotate, and the lead screw drives the support plate to move along the guide rod; the support plate drives the cleaning brush to move downward, and when the cleaning brush contacts the bottom plate, the cleaning brush rotates along the connecting seat; thereby folding the cleaning brush; when the support plate moves to the bottom of the conical filter screen, the electric push rod I provides power to drive the support plate, the mounting ring, and the cleaning brush to move to the inside of the outer shell through the moving plate, and then the motor I drives the conical filter screen to rotate through the turntable, thereby rotating the cleaned conical filter screen out to filter the groundwater, and at the same time rotating the clogged conical filter screen to the side of the cleaning mechanism for cleaning.

A pair of symmetrical support rods are connected to the movable plate below, and a scraper II is provided at one end of the support rod away from the movable plate; the bottom of the scraper II is in contact with the bottom plate; when the movable plate moves, it can drive the support rods to move, and the support rods drive the scraper II to move along the bottom plate, thereby cleaning the mud and sand on the bottom plate into the collection box.

The cleaning brush is composed of a steel brush, a mounting plate, a waterproof shell, a fixed plate, a connecting plate, a reciprocating screw and a motor II; the mounting plate is rotatably connected to the bottom of the mounting ring through a connecting seat, and a movable groove and a guide groove are provided on the mounting plate, and the movable groove and the guide groove are connected; the steel brush is installed in the movable groove, one end of the connecting plate is connected to the steel brush, and the other end passes through the guide groove and is located in the waterproof shell; a pair of fixed plates are provided, which are symmetrically installed at both ends of the guide groove of the mounting plate; the two ends of the reciprocating screw are rotatably connected to the corresponding fixed plates through bearings, and the connecting plate is connected to the reciprocating screw through threads; the motor II is fixed on the fixed plate, and the output shaft is connected to one end of the reciprocating screw; the waterproof shell is fixed to the end of the mounting plate away from the steel brush; the motor II provides power to drive the reciprocating screw to rotate, and the reciprocating screw drives the connecting plate to move along the guide groove through the thread, and the connecting plate drives the steel brush to move along the movable groove, so that the outer surface of the conical filter net can be cleaned vertically, so that the mud and sand on the outer surface of the conical filter net can be brushed off, the conical filter net can be cleaned more cleanly, and the conical filter net can be further prevented from being blocked.

The scraping mechanism includes a moving rod, a connecting rod, a rotating plate, a rotating rod, and a scraper I; one end of the moving rod is fixed on the moving plate, and the other end extends into the filter cartridge; one end of the connecting rod is rotatably connected to one end of the moving rod located at the filter cartridge through a rotating shaft, one end of the rotating plate is rotatably connected to one end of the connecting rod through a rotating shaft, and the other end is connected to a rotating rod, which is rotatably connected to the top of the pressure reducing cone; the scraper I is attached to the surface of the pressure reducing cone and one end of the rotating rod is connected to the rotating rod; the movement of the moving plate drives the moving rod to move, the moving rod drives the rotating plate to rotate through the connecting rod, the rotating plate drives the rotating rod to rotate, and the rotating rod drives the scraper I to move along the surface of the pressure reducing cone to clean and discharge the mud and sand at the bottom of the filter cartridge.

The ozone catalytic oxidation mechanism comprises an upper catalytic plate, a lower catalytic plate, a support plate, an air distribution pipe, an electric push rod II, a motor VII, a turntable, a bevel gear I, and a bevel gear II; the air distribution pipe is located at the bottom of the catalytic oxidation cylinder, the support plate is fixed on the inner wall of the catalytic oxidation cylinder above the air distribution pipe, and the lower catalytic plate is overlapped on the top of the support plate; the turntable is rotatably connected to the top of the catalytic oxidation cylinder, and a bevel gear II is provided on the top of the turntable; the motor VII is fixed to the top of the catalytic oxidation cylinder on one side of the turntable, and a bevel gear I is provided on the output shaft; the bevel gear I and the bevel gear II are meshed and connected; the electric push rod II The upper catalytic plate is fixed on the turntable, and the upper catalytic plate is fixed on the output end of the electric push rod II; the two ends of the breaking mechanism are respectively connected with the upper catalytic plate and the lower catalytic plate, and the upper catalytic plate and the lower catalytic plate are provided with catalyst coatings; the motor VII provides power to drive the turntable to rotate through the bevel gear I and the bevel gear II, and the turntable drives the upper catalytic plate, the breaking mechanism and the lower catalytic plate to rotate simultaneously through the electric push rod II; the electric push rod II provides power to drive the upper catalytic plate to move; it can fully mix the groundwater, the catalyst and the ozone, and improve the decomposition efficiency of the organic pollutants in the groundwater.

The dispersing mechanism comprises a crossbeam, a movable seat, an inclined plate and a fixed seat; the crossbeam is fixed to the bottom of the upper catalytic plate, a "T"-shaped limiting groove is arranged on the crossbeam, the movable seat is movably connected inside the limiting groove, the fixed seat is fixed on the lower catalytic plate, and both ends of the inclined plate are rotatably connected to the movable seat and the fixed seat respectively; the upper catalytic plate moves downward to drive the crossbeam to move up and down, and the crossbeam drives one end of the inclined plate to rotate around the fixed seat through the movable seat, and at the same time, the end of the inclined plate connected to the movable seat drives the movable seat to move along the limiting groove.

The inclined plate is provided with a mixing mechanism; the mixing mechanism comprises a fixed shaft, a bevel gear I, a rotating tube, a motor VI, a bevel gear II, a supporting sleeve, a connecting shaft, and a mixing fan blade; one end of the fixed shaft is fixed to a side of the inclined plate close to the fixed seat; the bevel gear I is connected to the fixed shaft, the rotating tube is rotatably connected to the fixed shaft on one side of the bevel gear I, the motor VI is fixed to an end of the fixed shaft away from the inclined plate, and the output shaft is connected to the rotating tube; the connecting shaft is obliquely fixed to the rotating tube, and the supporting sleeve is fixed to the other end of the connecting shaft; the transmission shaft is rotatably connected to the inside of the supporting sleeve, and the two ends of the transmission shaft are respectively provided with bevel gears II and The mixing blades, helical gears II and helical gears I are meshed and connected; the motor VI provides power to drive the rotating tube to rotate, the rotating tube drives the supporting sleeve to rotate through the connecting shaft, the supporting sleeve drives the helical gear II to rotate along the helical gear I through the transmission shaft, thereby driving the mixing blades to rotate; at the same time, the self-rotation of the helical gear II drives the transmission shaft to rotate, further driving the mixing blades to rotate; the mixing blades can rotate while rotating, which can not only expand the mixing range of the mixing blades for groundwater, but also enable the groundwater, catalyst and ozone to be fully mixed, further improving the decomposition efficiency of organic pollutants in groundwater.

The inclined plate is provided with a stirring mechanism; the stirring mechanism comprises a motor V, a rotating shaft, an internal gear I, a gear I, a stirring blade I, a sleeve, an internal gear II, a gear II, a stirring blade II, and a support frame; the support frame is fixed to the side wall of the inclined plate; the rotating shaft is rotatably connected to the inclined plate through a bearing, the output shaft of the motor V is fixed to the inclined plate and connected to one end of the rotating shaft; the internal gear I is connected to the rotating shaft, the gear I is rotatably connected to the support frame, and the gear I is meshed with the internal gear I; the stirring blade I is fixed to the end of the rotating shaft away from the inclined plate; the sleeve is rotatably connected to the outer wall of the rotating shaft On the frame, the inner gear II is fixed on the casing, the gear II is rotatably connected to the support frame, the gear II is meshed with the inner gear II, and the gear I is meshed with the gear II; the stirring blade II is fixed on the casing; the motor V provides power to drive the rotating shaft to rotate, the rotating shaft drives the inner gear I and the stirring blade I to rotate, and then the inner gear I drives the inner gear II to rotate through the gear I and the gear II, further drives the casing to rotate, and the casing drives the stirring blade II to rotate; thereby, the stirring blade I and the stirring blade II can rotate in opposite directions, and further the groundwater can be stirred at a secondary level.

Compared with the prior art, the present invention has the following beneficial effects:

1) Motor I provides power to drive the turntable to rotate, and the turntable drives the conical filter and the partition to rotate, so that the conical filter is rotated to the side of the cleaning mechanism, which is convenient for the cleaning mechanism to clean the conical filter; Motor III provides power to drive gear III to rotate, and gear III drives the mounting ring to rotate along the arc groove through the gear ring, and the mounting ring drives the cleaning brush to rotate, so as to clean the conical filter;

2) After the conical filter is cleaned, the motor IV provides power to drive the lead screw to rotate, and the lead screw drives the support plate to move along the guide rod; the support plate drives the cleaning brush to move downward, and when the cleaning brush contacts the bottom plate, the cleaning brush rotates along the connecting seat; thereby folding the cleaning brush; when the support plate moves to the bottom of the conical filter, the electric push rod I provides power to drive the support plate, the mounting ring, and the cleaning brush to move to the inside of the shell through the moving plate, and then the motor I drives the conical filter to rotate through the turntable, so that the cleaned conical filter is rotated out to filter the groundwater, and at the same time, the clogged conical filter is rotated to the side of the cleaning mechanism for cleaning;

3) In the mixing mechanism, the motor VI provides power to drive the rotating tube to rotate, and the rotating tube drives the supporting sleeve to rotate through the connecting shaft. The supporting sleeve drives the bevel gear II to rotate along the bevel gear I through the transmission shaft, thereby driving the mixing blades to rotate; at the same time, the self-rotation of the bevel gear II drives the transmission shaft to rotate, further driving the mixing blades to rotate; the mixing blades can rotate while rotating, which can not only expand the mixing range of the mixing blades for groundwater, but also fully mix the groundwater, catalyst and ozone, further improving the decomposition efficiency of organic pollutants in groundwater; further, the motor V provides power to drive the rotating shaft to rotate, and the rotating shaft drives the internal gear I and the stirring blade I to rotate, and then the internal gear I drives the internal gear II to rotate through the gear I and the gear II, further driving the sleeve to rotate, and the sleeve drives the stirring blade II to rotate; thereby, the stirring blades I and the stirring blades II can rotate in opposite directions, further enabling secondary stirring of the groundwater, further realizing the persistent and continuous cyclic restoration of the groundwater body, and further improving the restoration efficiency of the water body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG2 is a second schematic diagram of the structure of a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG3 is a schematic diagram of the internal structure of a filter cartridge in a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG4 is a second schematic diagram of the internal structure of a filter cartridge in a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG5 is a schematic diagram of the structure of a cleaning mechanism in a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG6 is a schematic diagram of the structure of a support plate in a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG. 7 is a schematic diagram of the structure of a cleaning brush in a groundwater remediation device for persistent organic pollutants according to the present invention;

Figure 8 is an enlarged structural schematic diagram of part A in Figure 7;

FIG9 is a schematic diagram of the internal structure of a catalytic oxidation cylinder of a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG10 is a schematic diagram of the structure of a breaking mechanism in a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG11 is a schematic diagram of the structure of a mixing mechanism in a groundwater remediation device for persistent organic pollutants of the present invention;

FIG12 is a schematic diagram of the first structure of a stirring mechanism in a groundwater remediation device for persistent organic pollutants according to the present invention;

FIG13 is a second schematic diagram of the structure of a stirring mechanism in a groundwater remediation device for persistent organic pollutants according to the present invention;

In the figure: 1, moving platform; 2, water inlet pipe; 3, filter cartridge; 301, pressure reducing cone; 4, filtering mechanism; 401, turntable; 402, cone filter; 403, partition; 405, motor I; 406, baffle; 5, cleaning mechanism; 501, housing; 502, cleaning brush; 5021, steel brush; 5022, mounting plate; 50221, moving groove; 50222, guide groove; 5023, waterproof shell; 5024, fixing plate; 5025, connecting plate; 5026, reciprocating screw; 5027, motor II; 503, support plate; 5031, arc groove; 503 2. Square groove; 5033. Bump; 504. Mounting ring; 5041. Gear ring; 5042. Connecting seat; 5043. Stopper; 5044. Rotating groove; 505. Motor III; 5051. Gear III; 506. Power mechanism; 5061. Moving plate; 5062. Motor IV; 5063. Lead screw; 5064. Guide rod; 5065. Electric push rod I; 507. Scraping mechanism; 5071. Moving rod; 5072. Connecting rod; 5073. Rotating plate; 5074. Rotating rod; 5075. Scraper I; 508. Support rod; 509. Scraper II; 510 , collecting box; 5101, sewage pipe; 6, catalytic oxidation cylinder; 7, breaking mechanism; 701, crossbeam; 7011, limit groove; 702, moving seat; 703, inclined plate; 704, fixed seat; 705, stirring mechanism; 7051, motor V; 7052, rotating shaft; 7053, internal gear I; 7054, gear I; 7055, stirring blade I; 7056, sleeve; 7057, internal gear II; 7058, gear II; 7059, stirring blade II; 70510, support frame; 706, mixing mechanism; 7061, fixed shaft; 7062, helical gear I; 70 63. Rotating tube; 7064. Motor VI; 7065. Bevel gear II; 7066. Support sleeve; 7067. Connecting shaft; 7068. Mixing fan blade; 7069. Transmission shaft; 8. Ozone catalytic oxidation mechanism; 801. Upper catalytic plate; 802. Lower catalytic plate; 803. Support plate; 804. Air distribution pipe; 805. Electric push rod II; 806. Motor VII; 807. Turntable; 808. Bevel gear I; 809. Bevel gear II; 9. Connecting tube; 11. Ozone generator; 1101. Air inlet pipe; 12. Detection tube; 13. Water outlet pipe; 14. Reflux pipe; 15. Conduit.

Detailed ways

To facilitate understanding by those skilled in the art, the technical solution of the present invention is further described in detail below with reference to FIGS. 1-13 .

A groundwater remediation device for persistent organic pollutants, comprising a moving platform 1, a water inlet pipe 2, a filter cartridge 3, a catalytic oxidation cartridge 6, a connecting pipe 9, an ozone generator 11, a detection cartridge 12, a water outlet pipe 13, and a return pipe 14; the filter cartridge 3, the catalytic oxidation cartridge 6, and the detection cartridge 12 are all placed on the moving platform 1; one end of the water inlet pipe 2 is located in a pumping well, and the other end is connected to the filter cartridge 3 through a water pump; the filter cartridge 3 and the catalytic oxidation cartridge 6 are connected through a connecting pipe 9, a filtering mechanism 4 and a cleaning mechanism 5 are installed in the filter cartridge 3, and a breaking mechanism 7 and an ozone catalytic oxidation mechanism 8 are provided in the catalytic oxidation cartridge 6; a conduit 15 connects the catalytic oxidation cartridge 6 and the detection cartridge 12, and two ends of the return pipe 14 are respectively connected to the bottom of the detection cartridge 12 and the connecting pipe 9; the water outlet pipe 13 is connected to the detection cartridge 12 and is connected to the return well, the ozone generator 11 is located on one side of the catalytic oxidation cartridge 6, and is connected to the catalytic oxidation cartridge 6 through an air inlet pipe 1101; first, the water The pump draws groundwater from the pumping well into the filter cartridge 3, and the mud and sand carried in the groundwater are filtered through the filter mechanism 4, while the cleaning mechanism 5 can clean the filter mechanism 4 to prevent the filter mechanism 4 from being blocked; then the filtered groundwater enters the catalytic oxidation cartridge 6 through the water pump and the connecting pipe 9, and at the same time, the ozone in the ozone generator 11 is passed into the catalytic oxidation cartridge 6 through the air inlet pipe 1101, and the filtered groundwater is fully mixed and contacted with the catalyst and the ozone through the ozone catalytic oxidation mechanism 8 and the breaking mechanism 7, and catalytic oxidation is performed, so that the organic pollutants in the wastewater can be decomposed, and the groundwater can be further purified and repaired; the purified groundwater enters the detection cartridge 12 through the conduit 15 for detection, and the qualified groundwater enters the return well through the outlet pipe 13 and flows back to the underground, while the unqualified groundwater returns to the catalytic oxidation cartridge 6 through the return pipe 14 for secondary purification, further realizing the persistent and continuous circulation repair of the groundwater body.

The filtering mechanism 4 includes a turntable 401, a conical filter screen 402, a partition 403, a motor I 405, and a baffle 406; the motor I 405 is fixed on the top of the filter cartridge 3, the turntable 401 is located inside the filter cartridge 3 and is connected to the output shaft of the motor I 405, a plurality of evenly distributed conical filter screens 402 are arranged at the bottom of the turntable 401, adjacent conical filter screens 402 are separated by partitions 403, and the partitions 403 are fixed on the bottom of the turntable 401; the baffle 406 is fixed on the side wall of the filter cartridge 3 at the top of the turntable 401; the baffle 406 blocks one end of the turntable 401 located at the cleaning mechanism 5 to prevent the filtered groundwater from entering the cleaning mechanism; the motor I 405 provides power to drive the turntable 401 to rotate, and the turntable 401 drives the conical filter screen 402 and the partition 403 to rotate, thereby rotating the conical filter screen 402 to one side of the cleaning mechanism 5, so as to facilitate the cleaning mechanism 5 to clean the conical filter screen 402.

The cleaning mechanism 5 includes a shell 501, a cleaning brush 502, a support plate 503, a mounting ring 504, a motor III 505, and a collection box 510; the shell 501 is fixed to the side wall of the filter cartridge 3 and is connected to the filter cartridge 3; the support plate 503 is composed of two upper and lower plates fixed by bolts, and an arc groove 5031 and a square groove 5032 are provided inside the support plate 503, and the arc groove 5031 and the square groove 5032 are connected; a convex block 5033 is provided in the arc groove 5031 of the support plate 503, a rotating groove 5044 is provided at the top of the mounting ring 504, the mounting ring 504 is movably connected in the arc groove 5031, the convex block 5033 is connected in the rotating groove 5044, and a gear ring 5041 is provided on the outer side wall of the mounting ring 504; the motor III 505 is fixed to the bottom of the support plate 503, and a gear III 5051 is provided on the output shaft, and the gear III 5051 is provided on the output shaft. 51 is located inside the square groove 5032; gear III 5051 and gear ring 5041 are meshed and connected; the collecting box 510 is fixed inside the outer side and corresponds to the filter cartridge 3, and a sewage pipe 5101 is provided on the collecting box 510; a connecting seat 5042 is provided at the bottom of the mounting ring 504, and a stopper 5043 is provided on one side of the connecting seat 5042. The cleaning brush 502 is rotatably connected to the bottom of the mounting ring 504 through the connecting seat 5042, and the stopper 5043 enables the cleaning brush 502 to contact the outer surface of the conical filter 402, so as to better clean the conical filter 402; the motor III 505 provides power to drive the gear III 5051 to rotate, and the gear III 5051 drives the mounting ring 504 to rotate along the arc groove 5031 through the gear ring 5041, and the mounting ring 504 drives the cleaning brush 502 to rotate, so as to clean the conical filter 402.

A power mechanism 506 is provided inside the housing 501, and the power mechanism 506 is connected to the support plate 503; the power mechanism 506 includes a moving plate 5061, a motor IV 5062, a lead screw 5063, a guide rod 5064, and an electric push rod I 5065; a pair of moving plates 5061 are symmetrically mounted on the inner wall of the housing 501; both ends of the lead screw 5063 are rotatably connected to the corresponding moving plates 5061 through bearings, and a pair of guide rods 5064 are fixed to the moving plates 5061 on both sides of the lead screw 5063; the motor IV 5062 is fixed to the top of the moving plate 5061, and the output shaft is connected to one end of the lead screw 5063; the support plate 503 passes through the guide rod 5064 and is connected to the lead screw 5063 through a thread; the electric push rod I 5065 is fixed to the side wall of the housing 501, and the output end is connected to the moving plate 5061; when the cone passes After the filter screen 402 is cleaned, the motor IV 5062 provides power to drive the lead screw 5063 to rotate, and the lead screw 5063 drives the support plate 503 to move along the guide rod 5064; the support plate 503 drives the cleaning brush 502 to move downward, and when the cleaning brush 502 contacts the bottom plate, the cleaning brush 502 rotates along the connecting seat 5042; thereby folding the cleaning brush 502; when the support plate 503 moves to the bottom of the conical filter screen 402, the electric push rod I 5065 provides power to drive the support plate 503, the mounting ring 504, and the cleaning brush 502 to move to the inside of the housing 501 through the moving plate 5061, and then the motor I 405 drives the conical filter screen 402 to rotate through the turntable 401, so that the cleaned conical filter screen 402 is rotated out to filter the groundwater, and at the same time, the clogged conical filter screen 402 is rotated to the side of the cleaning mechanism for cleaning.

A pair of symmetrical support rods 508 are connected to the movable plate 5061 below, and a scraper II 509 is provided at one end of the support rod 508 away from the movable plate 5061; the bottom of the scraper II 509 is in contact with the bottom plate; when the movable plate 5061 moves, it can drive the support rod 508 to move, and the support rod 508 drives the scraper II to move along the bottom plate, thereby cleaning the mud and sand on the bottom plate into the collection box 510.

The cleaning brush 502 is composed of a steel brush 5021, a mounting plate 5022, a waterproof shell 5023, a fixed plate 5024, a connecting plate 5025, a reciprocating screw 5026, and a motor II 5027; the mounting plate 5022 is rotatably connected to the bottom of the mounting ring 504 through a connecting seat 5042, and a movable groove 50221 and a guide groove 50222 are provided on the mounting plate 5022, and the movable groove 50221 and the guide groove 50222 are connected; the steel brush 5021 is installed in the movable groove 50221, one end of the connecting plate 5025 is connected to the steel brush 5021, and the other end passes through the guide groove 50222 and is located in the waterproof shell 5023; the fixed plate 5024 is provided with a pair of symmetrically mounted at both ends of the guide groove 50222 of the mounting plate 5022; the two ends of the reciprocating screw 5026 are rotatably connected to the corresponding The connecting plate 5025 is connected to the reciprocating screw 5026 through a thread; the motor II 5027 is fixed on the fixing plate 5024, and the output shaft is connected to one end of the reciprocating screw 5026; the waterproof shell 5023 is fixed to the end of the mounting plate 5022 away from the steel brush 5021; the motor II 5027 provides power to drive the reciprocating screw 5026 to rotate, and the reciprocating screw 5026 drives the connecting plate 5025 to move along the guide groove 50222 through the thread, and the connecting plate 5025 drives the steel brush 5021 to move along the moving groove 50221, so that the steel brush 5021 can vertically clean the outer surface of the conical filter 402, so that the mud and sand on the outer surface of the conical filter 402 can be brushed off, the conical filter 402 can be cleaned more cleanly, and the conical filter 402 can be further prevented from being blocked.

The scraping mechanism 507 includes a moving rod 5071, a connecting rod 5072, a rotating plate 5073, a rotating rod 5074, and a scraper I 5075; one end of the moving rod 5071 is fixed on the moving plate 5061, and the other end extends into the filter cartridge 3; one end of the connecting rod 5072 is rotatably connected to one end of the moving rod 5071 located at the filter cartridge 3 through a rotating shaft, one end of the rotating plate 5073 is rotatably connected to one end of the connecting rod 5072 through a rotating shaft, and the other end is connected to the rotating rod 5074, rotating The rod 5074 is rotatably connected to the top of the pressure reducing cone 301; the scraper I 5075 is attached to the surface of the pressure reducing cone 301 and one end is connected to the rotating rod 5074; the movement of the movable plate 5061 drives the movable rod 5071 to move, the movable rod 5071 drives the rotating plate 5073 to rotate through the connecting rod 5072, the rotating plate 5073 drives the rotating rod 5074 to rotate, and the rotating rod 5074 drives the scraper I 5075 to move along the surface of the pressure reducing cone 301, so as to clean and discharge the mud and sand at the bottom of the filter cylinder 3.

The ozone catalytic oxidation mechanism 8 includes an upper catalytic plate 801, a lower catalytic plate 802, a support plate 803, an air distribution pipe 804, an electric push rod II 805, a motor VII 806, a turntable 807, a bevel gear I 808, and a bevel gear II 809; the air distribution pipe 804 is located at the bottom of the catalytic oxidation cylinder 6, the support plate 803 is fixed on the inner wall of the catalytic oxidation cylinder 6 above the air distribution pipe 804, and the lower catalytic plate 802 is overlapped on the top of the support plate 803; the turntable 807 is rotatably connected to the top of the catalytic oxidation cylinder 6, and a bevel gear II 809 is provided on the top of the turntable 807; the motor VII 806 is fixed on the top of the catalytic oxidation cylinder 6 on one side of the turntable 807, and a bevel gear I 808 is provided on the output shaft. ; Bevel gear I808 and bevel gear II809 are meshingly connected; electric push rod II805 is fixed on the turntable 807, and the upper catalytic plate 801 is fixed on the output end of the electric push rod II805; the two ends of the scattering mechanism 7 are respectively connected to the upper catalytic plate 801 and the lower catalytic plate 802; the upper catalytic plate 801 and the lower catalytic plate 802 are provided with a catalyst coating; the motor VII806 provides power to drive the turntable 807 to rotate through the bevel gear I808 and the bevel gear II809, and the turntable 807 drives the upper catalytic plate 801, the scattering mechanism 7 and the lower catalytic plate 802 to rotate simultaneously through the electric push rod II805; the electric push rod II805 provides power to drive the upper catalytic plate 801 to move.

The dispersing mechanism 7 includes a crossbeam 701, a movable seat 702, an inclined plate 703, and a fixed seat 704; the crossbeam 701 is fixed to the bottom of the morning catalytic plate 801, a "T"-shaped limiting groove 7011 is provided on the crossbeam 701, the movable seat 702 is movably connected inside the limiting groove 7011, the fixed seat 704 is fixed on the lower catalytic plate 802, and both ends of the inclined plate 703 are rotatably connected to the movable seat 702 and the fixed seat 704 respectively; the downward movement of the upper catalytic plate 801 can drive the crossbeam 701 to move up and down, and the crossbeam 701 drives one end of the inclined plate 703 to rotate around the fixed seat 704 through the movable seat 702, and at the same time, the end of the inclined plate 703 connected to the movable seat 702 drives the movable seat 702 to move along the limiting groove 7011.

The inclined plate 703 is provided with a mixing mechanism 706; the mixing mechanism 706 includes a fixed shaft 7061, a bevel gear I 7062, a rotating tube 7063, a motor VI 7064, a bevel gear II 7065, a supporting sleeve 7066, a connecting shaft 7067, a mixing fan blade 7068, and a transmission shaft 7069; one end of the fixed shaft 7061 is fixed to a side of the inclined plate 703 close to the fixed seat 704; the bevel gear I 7062 is connected to the fixed shaft 706 1, the rotating tube 7063 is rotatably connected to the fixed shaft 7061 on one side of the bevel gear I 7062, the motor VI 7064 is fixed to the end of the fixed shaft 7061 away from the inclined plate 703, and the output shaft is connected to the rotating tube 7063; the connecting shaft 7067 is tilted and fixed on the rotating tube 7063, and the supporting sleeve 7066 is fixed to the other end of the connecting shaft 7067; the transmission shaft 7069 is rotatably connected to the inside of the supporting sleeve 7066, and the transmission shaft 7069 Bevel gear II 7065 and mixing blade 7068 are respectively provided at both ends, and bevel gear II 7065 and bevel gear I 7062 are meshingly connected; motor VI 7064 provides power to drive rotating tube 7063 to rotate, rotating tube 7063 drives supporting sleeve 7066 to rotate through connecting shaft 7067, and supporting sleeve 7066 drives bevel gear II 7065 to rotate along bevel gear I 7062 through transmission shaft 7069, thereby driving mixing blade 7068 to rotate around the fixed axis; at the same time, bevel gear II 7065 rotates by itself to drive transmission shaft 7069 to rotate, further driving mixing blade 7068 to rotate; mixing blade 7068 drives groundwater to rotate and can also drive the water to rotate by itself, thereby expanding the stirring range of mixing blade 7068 for groundwater, and making groundwater, catalyst and ozone fully mixed, further improving the decomposition efficiency of organic pollutants in groundwater.

The inclined plate 703 is provided with a stirring mechanism 705; the stirring mechanism 705 includes a motor V 7051, a rotating shaft 7052, an internal gear I 7053, a gear I 7054, a stirring blade I 7055, a sleeve 7056, an internal gear II 7057, a gear II 7058, a stirring blade II 7059, and a support frame 70510; the support frame 70510 is fixed on the side wall of the inclined plate 703; the rotating shaft 7052 rotates through a bearing The motor V 7051 is connected to the inclined plate 703, and the output shaft of the motor V 7051 is fixed on the inclined plate 703 and connected to one end of the rotating shaft 7052; the internal gear I 7053 is connected to the rotating shaft 7052, and the gear I 7054 is rotatably connected to the support frame 70510, and the gear I 7054 is meshed with the internal gear I 7053; the stirring blade I 7055 is fixed to the end of the rotating shaft 7052 away from the inclined plate 703; the sleeve 7056 is rotatably connected to the rotating shaft 7052. On the outer wall of the rotating shaft 7052, the internal gear II 7057 is fixed on the sleeve 7056, the gear II 7058 is rotatably connected to the support frame 70510, the gear II 7058 is meshedly connected with the internal gear II 7057, and the gear I 7054 is meshedly connected with the gear II 7058; the stirring blade II 7059 is fixed on the sleeve 7056; the motor V 7051 provides power to drive the rotating shaft 7052 to rotate, the rotating shaft 7052 drives the internal gear I 7053 and the stirring blade I 7055 to rotate, and then the internal gear I 7053 drives the internal gear II 7057 to rotate through the gear I 7054 and the gear II 7058, further drives the sleeve 7056 to rotate, and the sleeve 7056 drives the stirring blade II 7059 to rotate; thereby, the stirring blade I 7055 and the stirring blade II 7059 can rotate in different directions at the same time, and further the groundwater can be stirred in multiple directions.

A groundwater remediation device for persistent organic pollutants has the following working process: firstly, groundwater is pumped from a pumping well to the inside of a filter cartridge 3 by a water pump, mud and sand carried in the groundwater are filtered by a filter mechanism 4, and at the same time, a cleaning mechanism 5 can clean the filter mechanism 4 to prevent the filter mechanism 4 from being blocked; then, the filtered groundwater enters a catalytic oxidation cartridge 6 through a water pump and a connecting pipe 9, and at the same time, ozone in an ozone generator 11 is passed into the catalytic oxidation cartridge 6 through an air inlet pipe 1101, and the filtered groundwater is fully mixed and contacted with a catalyst and ozone by an ozone catalytic oxidation mechanism 8 and a breaking mechanism 7, and catalytic oxidation is performed, so that organic pollutants in the wastewater can be decomposed, and the groundwater can be further purified and remediated; the purified groundwater enters a detection cartridge 12 through a conduit 15 for detection, and groundwater that passes the detection enters a return well through a water outlet pipe 13 and flows back to the ground, while unqualified groundwater returns to the catalytic oxidation cartridge 6 through a return pipe 14 for secondary purification, so as to further realize persistent and continuous cyclic remediation of groundwater bodies and further improve the efficiency of groundwater remediation for organic pollutants.

The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims (7)

1. A groundwater remediation device for persistent organic pollutants, comprising a moving platform, a water inlet pipe, a filter cartridge, a catalytic oxidation cartridge, a connecting pipe, an ozone generator, a detection cartridge, a water outlet pipe, and a return pipe; characterized in that the filter cartridge, the catalytic oxidation cartridge, and the detection cartridge are all placed on the moving platform; one end of the water inlet pipe is located in a pumping well, and the other end is connected to the filter cartridge through a water pump; the filter cartridge and the catalytic oxidation cartridge are connected through a connecting pipe, a filtering mechanism and a cleaning mechanism are installed in the filter cartridge, and a breaking mechanism and an ozone catalytic oxidation mechanism are provided in the catalytic oxidation cartridge; a conduit connects the catalytic oxidation cartridge and the detection cartridge, and two ends of the return pipe are respectively connected to the bottom of the detection cartridge and the connecting pipe; the water outlet pipe is connected to the detection cartridge and is connected to the return well, the ozone generator is located on one side of the catalytic oxidation cartridge, and is connected to the catalytic oxidation cartridge through an air inlet pipe; First, groundwater is pumped from the pumping well to the inside of the filter cylinder by a water pump, and the mud and sand carried in the groundwater are filtered by the filtering mechanism, and at the same time, the cleaning mechanism can clean the filtering mechanism to prevent the filtering mechanism from being blocked; then the filtered groundwater enters the catalytic oxidation cylinder through the water pump and the connecting pipe, and at the same time, the ozone in the ozone generator is introduced into the catalytic oxidation cylinder through the air inlet pipe, and the filtered groundwater is fully mixed and contacted with the catalyst and ozone by the catalytic oxidation mechanism and the breaking mechanism, and catalytic oxidation is carried out to decompose the organic pollutants in the wastewater, and purify and repair the groundwater; the purified groundwater enters the detection cylinder through the catheter for detection, and the qualified groundwater enters the return well through the outlet pipe and flows back to the underground, while the unqualified groundwater returns to the catalytic oxidation cylinder through the return pipe for secondary purification, further realizing the long-term continuous circulation repair of the groundwater body; The filtering mechanism includes a turntable, a conical filter screen, a partition, a sedimentation plate, and a motor I; the motor I is fixed on the top of the filter cartridge, the turntable is located inside the filter cartridge and is connected to the output shaft of the motor I, a number of evenly distributed conical filter screens are arranged at the bottom of the turntable, and adjacent conical filter screens are separated by partitions, which are fixed to the bottom of the turntable; the baffle is fixed to the side wall of the filter cartridge at the top of the turntable; The cleaning mechanism includes a shell, a cleaning brush, a support plate, a mounting ring, a motor III, and a collection box; the shell is fixed on the side wall of the filter cartridge and is connected to the filter cartridge; the support plate is composed of two upper and lower plates fixed by bolts, and an arc groove and a square groove are provided inside the support plate, and the arc groove and the square groove are connected; a convex block is provided in the arc groove of the support plate, a rotating groove is provided on the top of the mounting ring, the mounting ring is movably connected in the arc groove, the convex block is connected in the rotating groove, and a gear ring is provided on the outer side wall of the mounting ring; the motor III is fixed to the bottom of the support plate, and a gear III is provided on the output shaft, and the gear III is located inside the square groove; the gear III is meshed with the gear ring; the collection box is fixed inside the outer side and corresponds to the filter cartridge, and a sewage pipe is provided on the collection box; a connecting seat is provided at the bottom of the mounting ring, and a stopper is provided on one side of the connecting seat, and the cleaning brush is rotatably connected to the bottom of the mounting ring through the connecting seat; The ozone catalytic oxidation mechanism comprises an upper catalytic plate, a lower catalytic plate, a support plate, an air distribution pipe, an electric push rod II, a motor VII, a turntable, a bevel gear I, and a bevel gear II; the air distribution pipe is located at the bottom of the catalytic oxidation cylinder, the support plate is fixed on the inner wall of the catalytic oxidation cylinder above the air distribution pipe, and the lower catalytic plate is overlapped on the top of the support plate; the turntable is rotatably connected to the top of the catalytic oxidation cylinder, and a bevel gear II is provided on the top of the turntable; the motor VII is fixed to the top of the catalytic oxidation cylinder on one side of the turntable, and a bevel gear I is provided on the output shaft; the bevel gear I and the bevel gear II are meshed and connected; the electric push rod II is fixed on the turntable, and the upper catalytic plate is fixed on the output end of the electric push rod II; the two ends of the scattering mechanism are respectively connected to the upper catalytic plate and the lower catalytic plate, and catalyst coatings are provided on the upper catalytic plate and the lower catalytic plate; The breaking mechanism includes a crossbeam, a movable seat, an inclined plate and a fixed seat; the crossbeam fixes the bottom of the upper catalytic plate, a "T"-shaped limiting groove is provided on the crossbeam, the movable seat is movably connected inside the limiting groove, the fixed seat is fixed on the lower catalytic plate, and both ends of the inclined plate are rotatably connected to the movable seat and the fixed seat respectively. 2. A groundwater remediation device for persistent organic pollutants according to claim 1, characterized in that a power mechanism is provided inside the shell, and the power mechanism is connected to the support plate; the power mechanism includes a movable plate, a motor IV, a screw, a guide rod, and an electric push rod I; a pair of movable plates are provided, which are symmetrically installed on the inner wall of the shell; both ends of the screw are rotatably connected to the corresponding movable plates through bearings, and a pair of guide rods are provided, which are fixed to the movable plates on both sides of the screw; the motor IV is fixed on the top of the movable plate, and the output shaft is connected to one end of the screw; the support plate passes through the guide rod and is connected to the screw through a thread; the electric push rod I is fixed on the side wall of the shell, and the output end is connected to the movable plate. 3. A groundwater remediation device for persistent organic pollutants according to claim 1, characterized in that a pair of symmetrical support rods are connected to the movable plate below, and a scraper II is provided at one end of the support rod away from the movable plate; the bottom of the scraper II is in contact with the bottom plate. 4. A groundwater remediation device for persistent organic pollutants according to claim 1, characterized in that the cleaning brush is composed of a steel brush, a mounting plate, a waterproof shell, a fixed plate, a connecting plate, a reciprocating screw, and a motor II; the mounting plate is rotatably connected to the bottom of the mounting ring through a connecting seat, and a movable groove and a guide groove are provided on the mounting plate, and the movable groove and the guide groove are connected; the steel brush is installed in the movable groove, one end of the connecting plate is connected to the steel brush, and the other end passes through the guide groove and is located in the waterproof shell; a pair of fixed plates are provided, which are symmetrically installed at both ends of the guide groove of the mounting plate; both ends of the reciprocating screw are rotatably connected to the corresponding fixed plates through bearings, and the connecting plate is connected to the reciprocating screw through threads; the motor II is fixed on the fixed plate, and the output shaft is connected to one end of the reciprocating screw; the waterproof shell is fixed to the end of the mounting plate away from the steel brush. 5. A groundwater remediation device for persistent organic pollutants according to claim 1, characterized in that the scraping mechanism includes a moving rod, a connecting rod, a rotating plate, a rotating rod, and a scraper I; one end of the moving rod is fixed on the moving plate, and the other end extends into the filter cartridge; one end of the connecting rod is rotatably connected to one end of the moving rod located at the filter cartridge through a rotating shaft, one end of the rotating plate is rotatably connected to one end of the connecting rod through a rotating shaft, and the other end is connected to a rotating rod, which is rotatably connected to the top of the pressure reducing cone; the scraper I is attached to the surface of the pressure reducing cone and one end is connected to the rotating rod. 6. A groundwater remediation device for persistent organic pollutants according to claim 1, characterized in that a mixing mechanism is provided on the inclined plate; the mixing mechanism includes a fixed shaft, a bevel gear I, a rotating tube, a motor VI, a bevel gear II, a supporting sleeve, a connecting shaft, and a mixing fan blade; one end of the fixed shaft is fixed to a side of the inclined plate close to the fixed seat; the bevel gear I is connected to the fixed shaft, the rotating tube is rotatably connected to the fixed shaft on one side of the bevel gear I, the motor VI is fixed to an end of the fixed shaft away from the inclined plate, and the output shaft is connected to the rotating tube; the connecting shaft is obliquely fixed to the rotating tube, and the supporting sleeve is fixed to the other end of the connecting shaft; the transmission shaft is rotatably connected to the inside of the supporting sleeve, and the two ends of the transmission shaft are respectively provided with a bevel gear II and a mixing fan blade, and the bevel gear II and the bevel gear I are meshingly connected. 7. A groundwater remediation device for persistent organic pollutants according to claim 1, characterized in that a stirring mechanism is provided on the inclined plate; the stirring mechanism includes a motor V, a rotating shaft, an internal gear I, a gear I, a stirring blade I, a sleeve, an internal gear II, a gear II, a stirring blade II, and a support frame; the support frame is fixed to the side wall of the inclined plate; the rotating shaft is rotatably connected to the inclined plate through a bearing, the motor V is fixed on the inclined plate and the output shaft is connected to one end of the rotating shaft; the internal gear I is connected to the rotating shaft, the gear I is rotatably connected to the support frame, and the gear I is meshed with the internal gear I; the stirring blade I is fixed to the end of the rotating shaft away from the inclined plate; the sleeve is rotatably connected to the outer side wall of the rotating shaft, the internal gear II is fixed to the sleeve, the gear II is rotatably connected to the support frame, the gear II is meshed with the internal gear II, and at the same time, the gear I is meshed with the gear II; the stirring blade II is fixed to the sleeve.