A heavy metal contaminated groundwater remediation system and a remediation method

Abstract

The application provides a heavy metal contaminated groundwater remediation system and a remediation method, and relates to the technical field of groundwater pollution remediation. The system comprises a horizontal pipe, the lower surface of the horizontal pipe is fixedly connected with a plurality of conical pressure cylinders, the inner wall of each conical pressure cylinder is provided with an annular cavity, the opposite side of the inner wall of each annular cavity is provided with a plurality of through holes, and the left and right sides of the upper side of the inner wall of each annular cavity are provided with adjusting devices; the adjusting device comprises a waterproof motor fixedly connected to one side of the inner wall of the annular cavity. The system has high performance, high remediation efficiency, ensures the remediation effect of groundwater, improves the use effect and use quality of the remediation equipment, avoids increasing the cost of the secondary remediation process of the equipment, avoids the problem that the soil may affect the pressing device during the groundwater extraction process in the traditional remediation equipment, improves the groundwater extraction effect of the equipment, and improves the remediation efficiency of the overall equipment.

Description

Technical Field

[0001] This invention relates to the field of groundwater pollution remediation technology, and in particular to a remediation system and method for heavy metal-contaminated groundwater. Background Technology

[0002] Groundwater pollution remediation refers to the use of technologies such as extraction, airlift, bioremediation, and permeable reactive barriers to restore polluted groundwater to its original quality. Groundwater resources are an important component of water resources. Currently, groundwater pollution occurs frequently in my country. The implementation of groundwater pollution control and remediation work is of great significance for the sustainable use of groundwater resources. There are many factors that cause groundwater pollution, such as industrial emissions, the infiltration of corrosive solutions, and excessive heavy metal content.

[0003] Traditional groundwater remediation systems often suffer from poor performance and low remediation effectiveness, leading to repeated repairs and increased costs associated with secondary repairs. Furthermore, during the groundwater extraction process, traditional equipment may be affected by soil during the pressing process, reducing its groundwater extraction efficiency and overall remediation efficiency. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a heavy metal contaminated groundwater remediation system and method. This solves the problems of weak system performance and poor remediation effect in traditional groundwater remediation processes, which negatively impact the remediation effect, leading to repeated remediation and increased costs associated with secondary equipment remediation. Furthermore, in traditional remediation equipment, during the groundwater extraction process, the equipment may be affected by soil during the pressing process, reducing the extraction efficiency and impacting the overall remediation efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a heavy metal contaminated groundwater remediation system, comprising a horizontal pipe, wherein a plurality of conical pressure cylinders are fixedly connected to the lower surface of the horizontal pipe, the inner walls of the plurality of conical pressure cylinders are provided with annular cavities, and a plurality of through-holes are provided on opposite sides of the inner walls of the plurality of annular cavities, and adjustment devices are provided on the left and right sides of the upper side of the inner walls of the plurality of annular cavities.

[0008] The adjusting device includes a waterproof motor fixedly connected to one side of the inner wall of the annular cavity. The output end of the waterproof motor is fixedly connected to a lead screw. The walls of the two corresponding lead screws are threaded together to form an annular plate. One side surface of the annular plate is provided with a breathable mesh plate between the two openings. The right end of the horizontal pipe is fixedly connected to a first pump body. The output end of the first pump body is fixedly connected to a wastewater treatment device.

[0009] Preferably, the wastewater treatment device includes a coagulation inclined tube sedimentation tank fixedly connected to the output end of a first pump body, a second pump body fixedly connected to the upper side of the right surface of the coagulation inclined tube sedimentation tank, a filter fixedly connected to the output end of the second pump body, a storage tank fixedly connected to the output end of the filter, a valve body provided on one side surface of the storage tank, and a sewage discharge device provided on the lower surface of the coagulation inclined tube sedimentation tank.

[0010] Preferably, the sewage discharge device includes a sewage discharge pipe fixedly connected to the lower surface of the coagulation inclined tube sedimentation tank, a solenoid valve is provided on the pipe wall of the sewage discharge pipe, a sludge storage tank is provided on the lower surface of the coagulation inclined tube sedimentation tank, a first sewage discharge pump is provided on one side surface of the sludge storage tank, a sludge thickening tank is fixedly connected to the output end of the first sewage discharge pump, a second sewage discharge pump is fixedly connected to one side surface of the sludge thickening tank, and a filter press is fixedly connected to the output end of the second sewage discharge pump.

[0011] Preferably, the surfaces of the plurality of ring plates are slidably connected to the inner walls of the corresponding ring cavities, and the input end of the first sewage pump is in contact with the inner wall of the sewage storage tank.

[0012] Preferably, a conveyor is provided on the right surface of the filter press.

[0013] A remediation method for a heavy metal contaminated groundwater remediation system, characterized by comprising the following steps;

[0014] S1. Installation of the device: Use machinery to press the device into the ground to ensure the operation of the device;

[0015] S2. Collection and treatment of underground sewage: the sewage is treated by the equipment, and the generated waste is transported off-site.

[0016] S3. Recharge the purified water to ensure the quality of groundwater remediation.

[0017] Preferably, the installation of the device in S1 involves using a static pile driver to press the cone-shaped cylinder into the ground area to be repaired. Once the cone-shaped cylinder is pressed into the repaired position, a waterproof motor is started. The waterproof motor drives the ring plate upward via a lead screw, moving the permeable mesh plate on the ring plate to the perforation position, ensuring that groundwater can seep into the cone-shaped cylinder through the permeable mesh plate. Then, the groundwater in the cone-shaped cylinder is pumped out by the first pump.

[0018] Preferably, the collection and treatment of underground sewage in S2 involves pumping water from the first pump into a coagulation inclined tube sedimentation tank. Through the sedimentation effect of the sedimentation tank, the treated liquid is then pumped through a second pump into a filter for further filtration. The filtered liquid is then transferred to a storage tank, where it is purified by pre-prepared adsorption resin. The sludge at the bottom of the sedimentation tank is uniformly discharged. By activating a solenoid valve, the sludge mixed with some liquid at the bottom of the sedimentation tank is discharged through a drain pipe into a sludge storage tank. From there, it is pumped through a first sewage pump to a sludge thickening tank for sludge thickening. The treated sludge liquid is then pumped through a second sewage pump to a filter press for liquid removal and sludge compression. The sludge impurities processed in the filter press are then transported by a conveyor to a fixed location for later use.

[0019] Preferably, in step S3, the purified water is reinjected by passing the purified water from the storage tank through a valve body and then inputting it into the ground through a water conveying device, thus ensuring the circulation and restoration of groundwater and completing the entire process of groundwater restoration.

[0020] (III) Beneficial Effects

[0021] This invention provides a remediation system and method for heavy metal-contaminated groundwater. It has the following beneficial effects:

[0022] 1. By incorporating a horizontal pipe, conical pressure cylinder, annular cavity, through-hole, waterproof motor, lead screw, ring plate, breathable mesh plate, first pump body, coagulation inclined tube sedimentation tank, second pump body, filter, storage tank, valve body, sewage pipe, solenoid valve, sludge storage tank, first sewage pump, sludge thickening tank, second sewage pump, and filter press, this invention's system boasts high performance and efficient repair effect, ensuring the repair effect of groundwater, improving the use effect and quality of repair equipment, avoiding increased costs for secondary repair processes, and avoiding the problem of soil interference during the pressing process in traditional repair equipment, thus improving the equipment's groundwater extraction effect and overall repair efficiency.

[0023] 2. By setting up an annular plate, annular cavity, sludge storage tank, first sewage pump, filter press, and conveyor vehicle, the internal devices of the equipment can be used more effectively, improving the performance and quality of the equipment, ensuring normal operation, facilitating the transfer of impurities after internal processing, and reducing the difficulty of operating the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall partial front cross-sectional structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Enlarged structural diagram of section A in the middle;

[0026] Figure 3 This is a schematic diagram of the wastewater treatment process of the present invention;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the cone-shaped compression cylinder of the present invention;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the coagulation inclined tube sedimentation tank of the present invention.

[0029] The components include: 1. Horizontal pipe; 2. Conical pressure cylinder; 3. Annular cavity; 4. Through-hole; 5. Waterproof motor; 6. Screw; 7. Ring plate; 8. Breathable mesh plate; 9. First pump body; 10. Coagulation inclined tube sedimentation tank; 11. Second pump body; 12. Filter; 13. Storage tank; 14. Valve body; 15. Sewage pipe; 16. Solenoid valve; 17. Sludge storage tank; 18. First sewage pump; 19. Sludge thickening tank; 20. Second sewage pump; 21. Filter press; 22. Conveyor vehicle. Detailed Implementation

[0030] 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 a part of the embodiments of the present invention, and not all of them. 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. Figures 1-5 As shown.

[0031] Example 1:

[0032] This invention provides a remediation system and method for heavy metal contaminated groundwater, comprising a horizontal pipe 1, with multiple conical pressure cylinders 2 fixedly connected to the lower surface of the horizontal pipe 1. The inner walls of the multiple conical pressure cylinders 2 are provided with annular cavities 3, and multiple through-holes 4 are provided on opposite sides of the inner walls of the multiple annular cavities 3. Adjustment devices are provided on the left and right sides of the upper side of the inner walls of the multiple annular cavities 3. Each adjustment device includes a waterproof motor 5 fixedly connected to one side of the inner wall of the annular cavity 3, and a lead screw 6 fixedly connected to the output end of the waterproof motor 5. The walls of two corresponding lead screws 6 are shared by... A ring plate 7 is threadedly connected to the horizontal pipe 1. A permeable mesh plate 8 is installed on one side of the ring plate 7 between two through-holes 4. A first pump body 9 is fixedly connected to the right end of the horizontal pipe 1. A wastewater treatment device is fixedly connected to the output end of the first pump body 9. The wastewater treatment device includes a coagulation inclined tube sedimentation tank 10 fixedly connected to the output end of the first pump body 9. A second pump body 11 is fixedly connected to the upper side of the right surface of the coagulation inclined tube sedimentation tank 10. A filter 12 is fixedly connected to the output end of the second pump body 11. A storage tank is fixedly connected to the output end of the filter 12. Storage tank 13, with valve body 14 installed on one side surface; sludge discharge device installed on the lower surface of coagulation inclined tube sedimentation tank 10, including sludge discharge pipe 15 fixedly connected to the lower surface of coagulation inclined tube sedimentation tank 10, with solenoid valve 16 installed on the pipe wall of sludge discharge pipe 15; sludge storage tank 17 installed on the lower surface of coagulation inclined tube sedimentation tank 10, with first sludge pump 18 installed on one side surface of sludge storage tank 17; sludge thickening tank 19 fixedly connected to the output end of first sludge pump 18; second sludge pump 20 fixedly connected to one side surface of sludge thickening tank 19; filter press 21 fixedly connected to the output end of second sludge pump 20. The system boasts strong performance and efficient repair effect, ensuring the repair effect of groundwater, improving the use effect and quality of repair equipment, avoiding increased costs of secondary repair processes, and avoiding the problem of soil influence during the pressing process in traditional repair equipment, thus improving the groundwater extraction effect and overall equipment repair efficiency.

[0033] Example 2:

[0034] This invention provides a remediation system and method for heavy metal contaminated groundwater, which is further expanded based on the content of specific embodiment one:

[0035] Among them, the surfaces of multiple ring plates 7 are slidably connected to the inner walls of the corresponding ring cavities 3, the input end of the first sewage pump 18 is in contact with the inner wall of the sewage storage tank 17, and a conveyor trolley 22 is provided on the right surface of the filter press 21 to ensure that the internal devices can play a better role in improving the performance and quality of the equipment, ensuring the normal operation of the equipment, facilitating the transfer of impurities after internal processing, and reducing the difficulty of operating the equipment.

[0036] Example 3:

[0037] This invention provides a remediation system and method for heavy metal contaminated groundwater, which is further expanded based on the content of specific embodiment one:

[0038] The process includes the following steps: S1, installation of the device, where the device is pressed into the ground using machinery to ensure its usability; S2, collection and treatment of underground sewage, where the sewage is treated by the device and the generated waste is transported off-site; S3, reinjection of the purified water to ensure the quality of groundwater remediation. In S1, the device is installed by using a static pile driver to press the cone-shaped cylinder 2 into the area to be remediated. After the cone-shaped cylinder 2 is pressed into the remediated position, the waterproof motor 5 is activated. The waterproof motor 5 drives the ring plate 7 upwards via the lead screw 6, moving the permeable mesh plate 8 on the ring plate 7 to the position of the permeable opening 4, ensuring that groundwater can seep into the cone-shaped cylinder 2 through the permeable mesh plate 8. Then, the groundwater in the cone-shaped cylinder 2 is pumped out by the first pump body 9. In S2, the collection and treatment of underground sewage involves guiding the water pumped out by the first pump body 9 into a coagulation inclined tube sedimentation tank 10. Through the sedimentation effect of the coagulation inclined tube sedimentation tank 10, the treated liquid is then introduced into a filter 12 via a second pump body 11 for further sedimentation. The sediment is filtered, and the filtered liquid is introduced into storage tank 13. Then, the filtered water is purified by the pre-prepared adsorption resin in storage tank 13. The sludge at the bottom of the coagulation inclined tube sedimentation tank 10 is uniformly discharged. By activating solenoid valve 16, the sludge mixed with some liquid at the bottom of the coagulation inclined tube sedimentation tank 10 is introduced into sludge storage tank 17 through sewage pipe 15. Then, it is introduced into sludge thickening tank 19 through first sewage pump 18 for sludge thickening treatment. The treated sludge liquid is introduced into filter press 21 through second sewage pump 20 for liquid removal and sludge compression processing. The sludge impurities processed by filter press 21 are uniformly transported to a fixed location by conveyor 22 for later use. In S3, the purified water is reinjected. The purified water in storage tank 13 is introduced into the ground through valve body 14 and then input into the ground through water conveying equipment to ensure the circulation and restoration of groundwater. This completes the entire process of groundwater restoration, ensuring the use effect and quality of the equipment and improving the practical performance of the equipment.

[0039] Working Principle: Before use, the equipment needs to be installed. First, the cone-shaped pressure cylinder 2 is fixed underground. Static pile driving equipment is used to press it into the ground surface to be repaired. After the cone-shaped pressure cylinder 2 is pressed into the repaired area, the waterproof motor 5 is started. The waterproof motor 5 drives the ring plate 7 upward via the lead screw 6, moving the permeable mesh plate 8 on the ring plate 7 to the position of the permeable opening 4, ensuring that groundwater can seep into the cone-shaped pressure cylinder 2 through the permeable mesh plate 8. Then, the first pump body 9 extracts the groundwater from the cone-shaped pressure cylinder 2. The output end of the first pump body 9 is connected to multiple pipes that can be inserted into the corresponding cone-shaped pressure cylinder 2. The suction force of the first pump body 9 draws out the seepage water, completing the process of extracting underground sewage. The water extracted by the first pump body 9 is then introduced into the coagulation inclined tube sedimentation tank 10. Through the sedimentation effect of the coagulation inclined tube sedimentation tank 10, the treated liquid is introduced into the filter 12 through the second pump body 11 for filtration. The filtered liquid is then introduced into the storage tank 13. Afterwards, the water is purified by filtering it with pre-prepared adsorption resin in storage tank 13. The sludge at the bottom of the coagulation inclined tube sedimentation tank 10 is uniformly discharged. By activating solenoid valve 16, the sludge mixed with some liquid at the bottom of the coagulation inclined tube sedimentation tank 10 is introduced into the sludge storage tank 17 through the sewage pipe 15, and then introduced into the sludge thickening tank 19 through the first sewage pump 18 for sludge thickening treatment. The treated sludge liquid is introduced into the filter press 21 through the second sewage pump 20 for liquid removal and sludge compression processing. The sludge impurities processed in the filter press 21 are uniformly transported to a fixed location by the conveyor 22 for later use. The purified water in storage tank 13 needs to be reinjected to ensure the balance of the groundwater level. First, the purified water in storage tank 13 is collected by valve body 14, and then input into the ground through the conveying equipment to ensure the circulation and restoration of groundwater. This completes the entire process of groundwater restoration. The structures in the equipment that are not explained in detail are all existing technologies and will not be elaborated on in this article.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A groundwater remediation system for heavy metal contaminated water, comprising a horizontal pipe (1), characterized in that: Multiple conical pressure cylinders (2) are fixedly connected to the lower surface of the horizontal tube (1). The inner walls of the multiple conical pressure cylinders (2) are provided with annular cavities (3). Multiple through holes (4) are provided on the opposite side of the inner walls of the multiple annular cavities (3). Adjustment devices are provided on the left and right sides of the upper side of the inner walls of the multiple annular cavities (3). The adjustment device includes a waterproof motor (5) fixedly connected to one side of the inner wall of the annular cavity (3). The output end of the waterproof motor (5) is fixedly connected to a lead screw (6). The rod walls of the two corresponding lead screws (6) are threaded together to a ring plate (7). One side surface of the ring plate (7) is provided with a breathable mesh plate (8) between the two openings (4). The right end of the horizontal pipe (1) is fixedly connected to a first pump body (9). The output end of the first pump body (9) is fixedly connected to a wastewater treatment device. The wastewater treatment device includes a coagulation inclined tube sedimentation tank (10) fixedly connected to the output end of a first pump body (9), a second pump body (11) fixedly connected to the upper side of the right surface of the coagulation inclined tube sedimentation tank (10), a filter (12) fixedly connected to the output end of the second pump body (11), a storage tank (13) fixedly connected to the output end of the filter (12), a valve body (14) provided on one side surface of the storage tank (13), and a sewage discharge device provided on the lower surface of the coagulation inclined tube sedimentation tank (10). The sewage discharge device includes a sewage pipe (15) fixedly connected to the lower surface of the coagulation inclined tube sedimentation tank (10). The sewage pipe (15) is equipped with a solenoid valve (16). The lower surface of the coagulation inclined tube sedimentation tank (10) is equipped with a sludge storage tank (17). A first sewage pump (18) is provided on one side surface of the sludge storage tank (17). The output end of the first sewage pump (18) is fixedly connected to a sludge thickening tank (19). A second sewage pump (20) is fixedly connected to one side surface of the sludge thickening tank (19). A filter press (21) is fixedly connected to the output end of the second sewage pump (20). The surfaces of the multiple ring plates (7) are slidably connected to the inner walls of the corresponding ring cavities (3), and the input end of the first sewage pump (18) is in contact with the inner wall of the sewage storage tank (17). A conveyor (22) is provided on the right surface of the filter press (21).

2. The remediation method for a heavy metal contaminated groundwater remediation system according to claim 1, characterized in that: Includes the following steps; S1. Installation of the device: Use machinery to press the device into the ground to ensure the operation of the device; S2. Collection and treatment of underground sewage: the sewage is treated by the equipment, and the generated waste is transported off-site. S3. Recharge the purified water to ensure the quality of groundwater remediation; The installation of the device in S1 is to use a static pile driver to press the cone cylinder (2) into the ground below the ground that needs to be repaired. After the cone cylinder (2) is pressed into the repair position below the ground, the waterproof motor (5) is started. The waterproof motor (5) drives the ring plate (7) to move upward through the screw (6), and moves the breathable mesh plate (8) on the ring plate (7) to the position of the opening (4) to ensure that the groundwater can seep into the cone cylinder (2) through the breathable mesh plate (8), and then the groundwater in the cone cylinder (2) is pumped out through the first pump body (9). The collection and treatment of underground sewage in S2 involves pumping water from the first pump (9) into a coagulation inclined tube sedimentation tank (10). Through the sedimentation effect of the coagulation inclined tube sedimentation tank (10), the treated liquid is then pumped through the second pump (11) into a filter (12) for further sedimentation and filtration. The filtered liquid is then transferred to a storage tank (13), where it is further purified by pre-prepared adsorption resin. The sludge at the bottom of the coagulation inclined tube sedimentation tank (10) is uniformly discharged. The process is initiated by... The solenoid valve (16) will guide the sludge mixed with some liquid at the bottom of the coagulation inclined tube sedimentation tank (10) into the sludge storage tank (17) through the sewage pipe (15), and then into the sludge thickening tank (19) through the first sewage pump (18) for sludge thickening treatment. The treated sludge liquid will be introduced into the filter press (21) through the second sewage pump (20) for liquid removal and sludge compression processing. The sludge impurities processed in the filter press (21) will be uniformly transported to a fixed location by the conveyor vehicle (22) for later use. In S3, the purified water is reinjected by passing the purified water from the storage tank (13) through the valve body (14) and then inputting it into the ground through the water conveying equipment to ensure the circulation and repair of the groundwater, thus completing the entire process of groundwater repair.

Images