CN116395914A - Multistage treatment device and treatment method for polluted underground water remediation - Google Patents
Multistage treatment device and treatment method for polluted underground water remediation Download PDFInfo
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- CN116395914A CN116395914A CN202310662054.3A CN202310662054A CN116395914A CN 116395914 A CN116395914 A CN 116395914A CN 202310662054 A CN202310662054 A CN 202310662054A CN 116395914 A CN116395914 A CN 116395914A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005067 remediation Methods 0.000 title claims abstract description 18
- 238000005189 flocculation Methods 0.000 claims abstract description 60
- 230000016615 flocculation Effects 0.000 claims abstract description 58
- 238000000746 purification Methods 0.000 claims abstract description 27
- 238000007790 scraping Methods 0.000 claims abstract description 9
- 239000010865 sewage Substances 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 18
- 239000003673 groundwater Substances 0.000 claims description 18
- 239000003344 environmental pollutant Substances 0.000 claims description 13
- 231100000719 pollutant Toxicity 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 238000003895 groundwater pollution Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000008394 flocculating agent Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 11
- 239000000945 filler Substances 0.000 description 6
- 239000002957 persistent organic pollutant Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 239000000370 acceptor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 239000002101 nanobubble Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a multistage treatment device and a treatment method for repairing polluted underground water, wherein the device comprises a fixed disc, a primary filter assembly, a flocculation purification assembly and a power assembly, wherein the lower bottom surface of the fixed disc is provided with a well pipe, the primary filter assembly is arranged on the fixed disc, the flocculation purification assembly is sleeved outside the primary filter assembly, and the power assembly is arranged on the flocculation purification assembly; the primary filter assembly comprises a filter box, a filter screen sleeve clamped in the filter box and a limit rod arranged in the filter box and provided with a dirt scraping plate at one side; the flocculation purification component comprises a flocculation box sleeved outside the filter box, a vibration disc arranged in the flocculation box and a vibration member arranged in the flocculation box; the power component is used for providing power for the filter screen sleeve and the vibration component; the device has reasonable structural design, obvious in-situ remediation effect of polluted underground water and is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a multistage treatment device and a treatment method for polluted underground water remediation.
Background
The underground water is taken as an important water supply source and an ecological environment resource, is an important support for national economy development, and has prominent position in social sustainable development and ecological civilization construction. In recent years, due to the rapid development of agriculture, industrialization and city in China, not only the groundwater pollution degree is continuously increased, but also the pollution range is continuously enlarged, and serious challenges are brought to the development of human beings and the progress of society.
At present, according to different restoration modes, groundwater pollution restoration can be divided into an ectopic restoration technology and an in-situ restoration technology, wherein the ectopic restoration technology mainly comprises a passive collection and extraction treatment technology, the ectopic restoration is a technology that pollutants are firstly transferred to the ground by a collection system or an extraction system and then are treated, and the ectopic restoration technology is suitable for a pollution site with a large pollution range and deep pollution corona burial depth; the in-situ repair technology refers to a method for repairing a polluted object in situ without carrying or transporting the polluted object under the condition of basically not damaging the natural environment of soil and groundwater. The in-situ remediation technology is suitable for the pollution sites with small underground water pollution range and shallow pollution halo buries, has low treatment cost, can reduce the use of surface treatment facilities, and furthest reduces the exposure of pollutants and the disturbance to the environment.
However, the existing underground water ex-situ restoration technology is high in engineering cost, relates to extraction or recharging of underground water, and has large interference to a restoration area and serious tailing and rebound phenomena; the in-situ repair technology is not suitable for underground water pollution sites with deep water level, small flow rate or high pollutant concentration, and the construction and filler replacement of the in-situ repair technology are difficult.
Disclosure of Invention
Aiming at the technical problems, the invention provides a multistage treatment device and a treatment method for repairing polluted underground water.
The technical scheme of the invention is as follows: a multistage treatment device for repairing polluted underground water comprises a fixed disc, a primary filter assembly, a flocculation purification assembly and a power assembly, wherein the lower bottom surface of the fixed disc is provided with a well pipe, the primary filter assembly is arranged on the upper end surface of the fixed disc through a supporting block, the flocculation purification assembly is sleeved outside the primary filter assembly, and the power assembly is arranged on the upper end surface of the flocculation purification assembly; a plurality of water inlet tanks are equidistantly distributed on the side wall of the well pipe;
the primary filter assembly comprises a filter box with a water-permeable groove arranged on the side wall, a filter screen sleeve which is rotationally clamped inside the filter box and provided with a tooth sleeve penetrating through the filter box at the top end, and a plurality of limit rods which are equidistantly distributed inside the filter box and provided with a dirt scraping plate on one side close to the filter screen sleeve; a water inlet pipe penetrating through the fixed disc and connected with the filter box is arranged in the well pipe, and a suction pump is arranged at the joint of the water inlet pipe and the filter box;
the flocculation purification assembly comprises a flocculation box which is sleeved outside the filtering box, the top end of the flocculation box is provided with a feeding pipe, the lower end of the side wall of the flocculation box is provided with a slag discharging pipe and a water discharging pipe, a plurality of vibration disks which are arranged inside the flocculation box in parallel and are respectively in sliding clamping connection with the inner wall of the flocculation box, a plurality of shaft rods which are distributed inside the flocculation box at equal intervals and are in sliding clamping connection with the vibration disks, and a plurality of vibration members which are arranged inside the flocculation box and are connected with the shaft rods; the top ends of the shaft rods penetrate through the flocculation box and are provided with connecting gears, and damping springs which are in butt joint with the lower bottom surface of the vibration disk at the corresponding position are sleeved on the shaft rods;
the power assembly comprises a motor box arranged on the upper end surface of the flocculation box, a power motor arranged at the top in the motor box, and a first fluted disc and a second fluted disc which are respectively connected with an output shaft of the power motor; the first fluted disc is connected with the tooth sleeve in a meshed manner, and the second fluted disc is connected with each connecting gear through a chain respectively.
Further, the vibration component comprises a plurality of first bevel gears sleeved on the shaft rod and positioned at the upper end of each vibration disk, a plurality of second bevel gears rotationally clamped with the inner wall of the flocculation tank through connecting rods and meshed with the first bevel gears at corresponding positions, and a plurality of vibration cams sleeved on the connecting rods and abutted with the upper end faces of the vibration disks at corresponding positions;
description: the first bevel gear is driven to rotate through the shaft rod, so that the second bevel gear rotates under the driving action of the first bevel gear, the vibration disk is continuously collided by the vibration cam, and the vibration disk vibrates up and down along the shaft rod under the action of the damping spring, so that efficient mixing of the flocculant and sewage is effectively promoted.
Further, the biological purification assembly is arranged on the upper end face of the fixed disc, and comprises a stuffing box arranged on the upper end face of the fixed disc and positioned on the outer side of the supporting block, a plurality of water outlet sieve tubes which are equidistantly distributed on the lower bottom face of the stuffing box and penetrate through the fixed disc, the stuffing box is connected with a drain pipe, the upper end face of the stuffing box is movably hinged with a cover plate, and biological fillers are filled in the stuffing box;
description: biological filler in the stuffing box carries out biochemical treatment on sewage, and the treated sewage enters the soil through the water outlet sieve tube, so that the thoroughness of the purification treatment of polluted underground water is improved.
Further, an extension shaft is arranged on an output shaft of the power motor, the extension shaft penetrates through the lower bottom surface of the filter box, a third bevel gear is arranged at the lower end of the extension shaft, a plurality of pollution discharge barrels are distributed on the lower bottom surface of the filter box in a scattering mode, pollution discharge augers are arranged in the pollution discharge barrels, and the pollution discharge augers are respectively connected with the third bevel gear in a meshed mode through fourth bevel gears; each sewage draining cylinder is communicated with the inside of the filter box respectively, and the outer end part of each sewage draining cylinder is provided with a sealing cover;
description: the power motor is utilized to drive the extension shaft to rotate, so that the third bevel gear drives each pollution discharge auger to rotate through the fourth bevel gear, pollutants deposited in the filter tank are conveniently discharged in time, and the treatment efficiency of the device is effectively improved.
Further, the upper end face of the stuffing box is provided with a nanometer microbubble generating device, and an inflation tube connected with the nanometer microbubble generating device is arranged inside the well pipe;
description: the nanometer microbubbles generated by the nanometer microbubble generating device are injected into the stratum by the air charging pipe and are contacted with organic pollutants in the sewage, so that the decomposition of the organic pollutants in the sewage can be promoted, and meanwhile, electron acceptors can be supplemented for microorganisms in the water body, so that the degradation and removal of the organic pollutants are further promoted.
Further, a lifting motor is arranged on the fixed disc, a lifting screw rod penetrating through the fixed disc is arranged on an output shaft of the lifting motor, and the lifting screw rod is connected with a lifting disc in sliding clamping connection with the inner wall of the well pipe in a threaded manner; the plurality of the air charging pipes are arranged and are in scattering type sliding clamping connection in the lifting disc, each air charging pipe corresponds to each water inlet groove one by one, and racks are arranged on the lower bottom surface of each air charging pipe; pinion gears are rotatably clamped in the lifting disc, and a driving gear ring and a miniature motor are rotatably clamped in the lifting disc, wherein the driving gear ring is in meshed connection with each pinion gear, and the miniature motor provides power for the driving gear ring;
description: the lifting motor is used for driving the lifting screw rod to rotate, so that the lifting disc moves up and down along the inner wall of the well pipe, the micro motor is used for driving the driving gear ring to rotate, so that each pinion drives each inflation tube to extend out of the lifting disc under the action of the driving gear ring and enter a stratum through the water inlet groove on the well pipe, nano microbubbles are conveniently filled into groundwater with different depths, and the sewage treatment effect of the invention is improved.
Further, a PLC controller electrically connected with the suction pump and the power motor is arranged on the fixed disc;
description: by arranging the PLC, the operation efficiency of the device is improved, and the operation cost of the device is reduced.
Further, a water quality monitor electrically connected with the PLC is arranged on the stuffing box, and a monitoring probe of the water quality monitor is positioned inside the well pipe;
description: the monitoring probe of the water quality monitor is used for monitoring the water body in the well pipe in real time, so that the running period of the device can be conveniently adjusted in real time.
Further, rubber sleeves are sleeved outside the vibration cams;
description: through the rubber sleeve sleeved outside the vibrating cam, not only can the abrasion of the vibrating cam be reduced, but also the noise generated in the running process of the device can be effectively reduced, so that the environmental protection performance of the device is improved.
The invention also provides a multistage treatment method for repairing the polluted underground water, which comprises the following steps:
s1, drilling operation is carried out in a groundwater pollution area, after the drilling operation is completed, a well pipe is placed in a well hole, and a fixed disc is fixed with the ground of a wellhead; finally, the suction pump and the power motor are respectively connected with an external power supply;
s2, groundwater in the soil enters the well pipe through a water inlet groove on the well pipe; then, starting a suction pump, wherein the suction pump pumps the polluted underground water into the filter box through a water inlet pipe, the polluted underground water is subjected to primary filtration by utilizing a filter screen sleeve in the filter box, and the filtered polluted underground water enters the flocculation box through a water permeable groove on the filter box;
s3, adding a flocculating agent into the flocculation tank through a feeding pipe, then starting a power motor and a vibrating member, simultaneously driving a first fluted disc and a second fluted disc to rotate by using the power motor, driving a filter screen sleeve to rotate by a fluted disc sleeve in the rotating process of the first fluted disc, and cleaning pollutants attached to the inner wall of the filter screen sleeve by using a pollutant scraping plate on a limiting rod in the rotating process of the filter screen sleeve; meanwhile, in the rotation process of the second fluted disc, each shaft rod is driven to rotate through a connecting gear, each vibration disc is driven by a vibration component to vibrate up and down along the shaft rod, and mixing of flocculant and sewage is promoted; wherein the flocculant is polyaluminum chloride, and the addition amount of the flocculant is 0.2% of the total volume of the sewage;
s4, discharging the flocculated and purified sewage through a drain pipe, and discharging flocculated sediment in the flocculation tank through a slag discharging pipe.
Compared with the prior art, the invention has the beneficial effects that:
the device has reasonable structural design, and the polluted underground water is treated more efficiently and thoroughly by carrying out primary filtration, flocculation precipitation and biological purification treatment on the polluted underground water; has important significance for environmental protection and human health;
secondly, the device can carry out in-situ restoration and purification treatment on the underground water, reduces the occupied area of equipment, saves the restoration and treatment cost of polluted underground water, and has wide application prospect and practical value;
thirdly, the invention utilizes the friction effect of the dirt scraping plate and the filter screen sleeve to clean the pollutants attached on the inner wall of the filter screen sleeve in real time, and simultaneously utilizes the pollution discharge auger to timely discharge the pollutants in the filter tank, thereby improving the running stability and reliability of the device.
Drawings
FIG. 1 is a longitudinal cross-sectional view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic diagram of the connection of the flocculation tank to the filtration tank of the present invention;
FIG. 5 is a schematic illustration of the connection of a vibrating member to a vibrating disk of the present invention;
FIG. 6 is a schematic diagram of the connection of the drain auger of the present invention to a filter box;
FIG. 7 is a schematic illustration of the connection of the lifting disk of the present invention to a well tubular;
FIG. 8 is a schematic illustration of the connection of the inflation tube to the lift plate of the present invention;
wherein, 1-fixed disk, 10-well pipe, 11-intake tank, 12-intake pipe, 2-primary filter component, 20-filter box, 200-water permeation tank, 201-supporting block, 21-filter screen cover, 210-tooth cover, 22-limit lever, 220-dirt scraping plate, 23-suction pump, 3-flocculation purification component, 30-flocculation box, 300-charging pipe, 301-slag discharging pipe, 302-drain pipe, 31-vibration disk, 32-shaft rod, 320-connection gear, 321-damping spring, 33-vibration component, 330-first bevel gear, 331-connection rod, 332-second bevel gear, 333-vibration cam, 4-power component, 40-motor box, 41-power motor, 42-first fluted disk, 43-second fluted disk, 44-extension shaft, 440-third bevel gear, 45-dirt discharging cylinder, 450-sealing cover, 46-dirt discharging auger, 460-fourth bevel gear, 5-biological purification component, 50-packing box, 500-cover plate, 51-water discharging water generating device, 60-nano bubble generating device, 60-motor, 61-61, gear rack, 63-gear, 7-lifting/lowering device, 621-lifting/lowering device, driving gear, and driving device for monitoring water quality.
Detailed Description
Example 1: the multistage treatment device for polluted groundwater remediation shown in fig. 1 comprises a fixed disc 1, a primary filter assembly 2, a flocculation purification assembly 3 and a power assembly 4, wherein the lower bottom surface of the fixed disc 1 is provided with a well pipe 10, the primary filter assembly 2 is arranged on the upper end surface of the fixed disc 1 through a supporting block 201, the flocculation purification assembly 3 is sleeved outside the primary filter assembly 2, and the power assembly 4 is arranged on the upper end surface of the flocculation purification assembly 3; 8 water inlet tanks 11 are equidistantly distributed on the side wall of the well pipe 10;
as shown in fig. 1 and 4, the primary filter assembly 2 comprises a filter box 20 with a water-permeable groove 200 arranged on the side wall, a filter screen sleeve 21 rotatably clamped in the filter box 20 and provided with a tooth sleeve 210 penetrating through the filter box 20 at the top end, and 4 limit rods 22 equidistantly distributed in the filter box 20 and provided with a dirt scraping plate 220 at one side close to the filter screen sleeve 21; a water inlet pipe 12 penetrating through the fixed disc 1 and connected with the filter box 20 is arranged in the well pipe 10, and a suction pump 23 is arranged at the joint of the water inlet pipe 12 and the filter box 20;
as shown in fig. 1, 2, 3 and 5, the flocculation purification assembly 3 comprises a flocculation tank 30 sleeved outside a filter tank 20, a feeding pipe 300 is arranged at the top end of the flocculation tank, a slag discharging pipe 301 and a water discharging pipe 302 are arranged at the lower end of the side wall of the flocculation tank, two vibration disks 31 which are arranged in parallel up and down inside the flocculation tank 30 and are respectively in sliding clamping connection with the inner wall of the flocculation tank 30, 4 shaft rods 32 which are equidistantly distributed inside the flocculation tank 30 and are in sliding clamping connection with the vibration disks 31, and 8 vibration members 33 which are arranged inside the flocculation tank 30 and are connected with the shaft rods 32; the top ends of the shaft rods 32 penetrate through the flocculation tank 30 and are provided with connecting gears 320, and damping springs 321 which are in abutting connection with the lower bottom surface of the vibration disk 31 at corresponding positions are sleeved on the shaft rods 32; the vibration member 33 is a commercially available vibration motor;
as shown in fig. 1, the power assembly 4 comprises a motor box 40 arranged on the upper end surface of the flocculation box 30, a power motor 41 arranged on the inner top of the motor box 40, and a first fluted disc 42 and a second fluted disc 43 which are respectively connected with an output shaft of the power motor 41; the first toothed disc 42 is engaged with the toothed sleeve 210, and the second toothed disc 43 is connected with each connecting gear 320 through a chain.
Example 2: this example describes a multistage treatment method for contaminated groundwater remediation using the apparatus of example 1, comprising the steps of:
s1, drilling operation is carried out in a groundwater pollution area, after the drilling operation is completed, a well pipe 10 is placed in a well hole, and a fixed disc 1 is fixed with the ground of a wellhead; finally, the suction pump 23 and the power motor 41 are respectively connected with an external power supply;
s2, groundwater in soil enters the well pipe 10 through a water inlet groove 11 on the well pipe 10; then, starting a suction pump 23, wherein the suction pump 23 pumps the polluted underground water into the filter box 20 through the water inlet pipe 12, the polluted underground water is subjected to primary filtration by utilizing a filter screen sleeve 21 in the filter box 20, and the filtered polluted underground water enters the flocculation box 30 through a water permeable groove 200 on the filter box 20;
s3, adding a flocculating agent into the flocculation tank 30 through a feeding pipe 300, then starting a power motor 41 and a vibrating member 33, simultaneously driving a first fluted disc 42 and a second fluted disc 43 to rotate by using the power motor 41, driving a filter screen sleeve 21 to rotate by a fluted sleeve 210 in the rotating process of the first fluted disc 42, and cleaning pollutants attached to the inner wall of the filter screen sleeve 21 by using a pollutant scraping plate 220 on a limiting rod 22 in the rotating process of the filter screen sleeve 21; meanwhile, in the rotation process of the second fluted disc 43, each shaft lever 32 is driven to rotate through the connecting gear 320, each vibration disc 31 is driven by the vibration member 33 to vibrate up and down along the shaft lever 32, and the mixing of the flocculant and sewage is promoted; the vibration member 33 is a commercially available vibration motor; wherein the flocculant is polyaluminum chloride, and the addition amount of the flocculant is 0.2% of the total volume of the sewage;
s4, discharging the flocculated and purified sewage through a drain pipe 302, and discharging flocculated sediment in the flocculation tank 30 through a slag discharging pipe 301.
Example 3: this embodiment differs from embodiment 1 in that:
as shown in fig. 1 and 5, the vibration member 33 comprises 8 first bevel gears 330 sleeved on the shaft rod 32 and positioned at the upper end of each vibration disk 31, 8 second bevel gears 332 rotatably clamped with the inner wall of the flocculation tank 30 through connecting rods 331 and meshed with the first bevel gears 330 at corresponding positions, and 8 vibration cams 333 sleeved on the connecting rods 331 and abutted with the upper end surfaces of the vibration disks 31 at corresponding positions; rubber sleeves are sleeved outside the vibration cams 333.
Example 4: this example describes a multistage treatment method for contaminated groundwater remediation using the apparatus of example 3, which differs from example 2 in that:
in step S3, the power motor 41 drives the first bevel gear 330 to rotate through the shaft lever 32, so that the second bevel gear 332 rotates under the driving action of the first bevel gear 330, and the vibration cam 333 is utilized to continuously collide with the vibration disk 31, so that the vibration disk 31 vibrates up and down along the shaft lever 32 under the action of the damping spring 321, and efficient mixing of the flocculant and sewage is promoted.
Example 5: this embodiment differs from embodiment 1 in that:
as shown in fig. 1 and 3, the biological purification device further comprises a biological purification assembly 5 arranged on the upper end surface of the fixed disc 1, wherein the biological purification assembly 5 comprises a stuffing box 50 arranged on the upper end surface of the fixed disc 1 and positioned outside the supporting block 201, a plurality of water outlet sieve tubes 51 which are equidistantly distributed on the lower bottom surface of the stuffing box 50 and penetrate through the fixed disc 1, the stuffing box 50 is connected with a drain pipe 302, the upper end surface of the stuffing box 50 is movably hinged with a cover plate 500, and biological fillers are filled in the stuffing box 50; the biological filler is PP suspension ball biological filler.
Example 6: this example describes a multistage treatment method for contaminated groundwater remediation using the apparatus of example 5, which differs from example 2 in that it further comprises step S5,
s5, sewage after flocculation and purification enters the stuffing box 50 through a drain pipe 302, biological stuffing in the stuffing box 50 is utilized to carry out biochemical treatment on the sewage, and the treated sewage enters the soil through a water outlet screen pipe 51.
Example 7: this embodiment differs from embodiment 1 in that:
as shown in fig. 1 and 6, an output shaft of a power motor 41 is provided with an extension shaft 44, the extension shaft 44 penetrates through the lower bottom surface of the filter box 20, the lower end of the extension shaft is provided with a third bevel gear 440, 4 pollution discharge barrels 45 are distributed on the lower bottom surface of the filter box 20 in a scattering mode, pollution discharge augers 46 are arranged in the pollution discharge barrels 45, and each pollution discharge auger 46 is in meshed connection with the third bevel gear 440 through a fourth bevel gear 460; each of the drain cylinders 45 is communicated with the inside of the filter box 20, and the outer end parts of the drain cylinders 45 are provided with sealing covers 450.
Example 8: this example describes a multistage treatment method for contaminated groundwater remediation using the apparatus of example 7, which differs from example 2 in that:
after step S4 is completed, the power motor 41 is used to drive the extension shaft 44 to rotate, so that the third bevel gear 440 drives each drain auger 46 to rotate through the fourth bevel gear 460, and the pollutants deposited inside the filter box 20 are timely discharged.
Example 9: this embodiment differs from embodiment 1 in that:
as shown in fig. 1, 7 and 8, the upper end surface of the stuffing box 50 is provided with a nano-microbubble generating device 6, and a gas tube 60 connected with the nano-microbubble generating device 6 is arranged inside the well pipe 10; the fixed disc 1 is provided with a lifting motor 61, the output shaft of the lifting motor 61 is provided with a lifting screw rod 610 penetrating through the fixed disc 1, and the lifting screw rod 610 is in threaded connection with a lifting disc 62 which is in sliding clamping connection with the inner wall of the well pipe 10; 8 air inflation pipes 60 are arranged and are in scattering type sliding clamping connection in the lifting disc 62, each air inflation pipe 60 corresponds to each water inlet groove 11 one by one, and racks 600 are arranged on the lower bottom surface of each air inflation pipe 60; pinion gears 620 are rotatably clamped in the lifting disc 62 and at positions corresponding to the positions of the racks 600, and a driving gear ring 621 and a miniature motor 63 are rotatably clamped in the lifting disc 62 and are in meshed connection with the pinion gears 620, and the miniature motor 63 provides power for the driving gear ring 621.
Example 10: this example describes a multistage treatment method for contaminated groundwater remediation using the apparatus of example 9, which differs from example 2 in that:
after step S4 is completed, the nano-microbubble generating device 6 is connected with an external power supply, and the nano-microbubbles generated by the nano-microbubble generating device 6 are injected into the stratum by using the gas tube 60 and are contacted with organic pollutants in the sewage, so that the organic pollutants in the sewage are decomposed, and meanwhile, an electron acceptor is supplemented for microorganisms in the water body.
Example 11: this embodiment differs from embodiment 1 in that:
as shown in fig. 1 and 3, a PLC controller electrically connected to the suction pump 23 and the power motor 41 is provided on the fixed disk 1; the stuffing box 50 is provided with a water quality monitor 7 electrically connected with the PLC, and a monitoring probe of the water quality monitor 7 is positioned inside the well pipe 10.
Example 12: this example describes a multistage treatment method for contaminated groundwater remediation using the apparatus of example 11, which differs from example 2 in that:
in step S1, the suction pump 23, the power motor 41 and the water quality monitor 7 are respectively connected with an external power supply; the monitoring probe on the water quality monitor 7 is used for monitoring the water body inside the well pipe 10 in real time.
The PLC controller, the suction pump 23, the power motor 41, the nano-microbubble generating device 6, the micro-motor 63, and the water quality monitor 7 used in the present invention all adopt the prior art, and are not particularly limited herein, and corresponding products can be selected according to actual needs.
Claims (9)
1. The multistage treatment device for repairing polluted underground water is characterized by comprising a fixed disc (1) with a well pipe (10) arranged on the lower bottom surface, a primary filter assembly (2) arranged on the upper end surface of the fixed disc (1) through a supporting block (201), a flocculation purification assembly (3) sleeved outside the primary filter assembly (2) and a power assembly (4) arranged on the upper end surface of the flocculation purification assembly (3); a plurality of water inlet tanks (11) are equidistantly distributed on the side wall of the well pipe (10);
the primary filter assembly (2) comprises a filter box (20) with a water-permeable groove (200) arranged on the side wall, a filter screen sleeve (21) rotatably clamped inside the filter box (20) and provided with a tooth sleeve (210) penetrating through the filter box (20) at the top end, and a plurality of limit rods (22) which are equidistantly distributed inside the filter box (20) and are provided with a dirt scraping plate (220) at one side close to the filter screen sleeve (21); a water inlet pipe (12) penetrating through the fixed disc (1) and connected with the filter box (20) is arranged in the well pipe (10), and a suction pump (23) is arranged at the joint of the water inlet pipe (12) and the filter box (20);
the flocculation purification assembly (3) comprises a flocculation box (30) which is sleeved outside the filtration box (20) and is provided with a feeding pipe (300) at the top end, a slag discharging pipe (301) and a water discharging pipe (302) at the lower end of the side wall, a plurality of vibration disks (31) which are arranged in the flocculation box (30) in parallel and are respectively in sliding clamping connection with the inner wall of the flocculation box (30), a plurality of shaft rods (32) which are distributed in the flocculation box (30) in equal intervals and are in sliding clamping connection with the vibration disks (31), and a plurality of vibration members (33) which are arranged in the flocculation box (30) and are connected with the shaft rods (32); the top ends of the shaft rods (32) penetrate through the flocculation box (30) and are provided with connecting gears (320), and damping springs (321) which are in butt joint with the lower bottom surface of the vibration disc (31) at the corresponding positions are sleeved on the shaft rods (32);
the power assembly (4) comprises a motor box (40) arranged on the upper end surface of the flocculation box (30), a power motor (41) arranged on the inner top of the motor box (40), and a first fluted disc (42) and a second fluted disc (43) which are respectively connected with an output shaft of the power motor (41); the first fluted disc (42) is meshed with the tooth sleeve (210), and the second fluted disc (43) is connected with each connecting gear (320) through a chain respectively.
2. The multistage treatment device for polluted groundwater remediation according to claim 1, wherein the vibration member (33) comprises a plurality of first bevel gears (330) sleeved on the shaft rod (32) and positioned at the upper end of each vibration disc (31), a plurality of second bevel gears (332) rotatably clamped with the inner wall of the flocculation tank (30) through connecting rods (331) and meshed with the first bevel gears (330) at corresponding positions, and a plurality of vibration cams (333) sleeved on the connecting rods (331) and abutted with the upper end faces of the vibration discs (31) at corresponding positions.
3. The multistage treatment device for repairing polluted underground water according to claim 1, further comprising a biological purification assembly (5) arranged on the upper end face of the fixed disc (1), wherein the biological purification assembly (5) comprises a stuffing box (50) arranged on the upper end face of the fixed disc (1) and positioned outside the supporting block (201), a plurality of water outlet sieve tubes (51) which are equidistantly distributed on the lower bottom face of the stuffing box (50) and penetrate through the fixed disc (1), the stuffing box (50) is connected with the drain pipe (302), and a cover plate (500) is movably hinged on the upper end face of the stuffing box (50).
4. The multistage treatment device for repairing polluted underground water according to claim 1, wherein an extension shaft (44) is arranged on an output shaft of the power motor (41), the extension shaft (44) penetrates through the lower bottom surface of the filter box (20) and is provided with a third bevel gear (440) at the lower end, a plurality of pollution discharge barrels (45) are distributed on the lower bottom surface of the filter box (20) in a scattering mode, a pollution discharge auger (46) is arranged inside each pollution discharge barrel (45), and each pollution discharge auger (46) is in meshed connection with the third bevel gear (440) through a fourth bevel gear (460); each sewage draining cylinder (45) is communicated with the inside of the filter box (20) respectively, and the outer end part of each sewage draining cylinder (45) is provided with a sealing cover (450).
5. A multistage treatment device for contaminated groundwater remediation according to claim 3, characterized in that the stuffing box (50) is provided with a nano-microbubble generating device (6) on its upper end surface, and the inside of the well pipe (10) is provided with an inflation tube (60) connected to the nano-microbubble generating device (6).
6. The multistage treatment device for polluted groundwater remediation according to claim 5, wherein a lifting motor (61) is arranged on the fixed disc (1), a lifting screw (610) penetrating through the fixed disc (1) is arranged on an output shaft of the lifting motor (61), and the lifting screw (610) is in threaded connection with a lifting disc (62) in sliding clamping connection with the inner wall of the well pipe (10); the plurality of the air charging pipes (60) are arranged and are in scattering-shaped sliding clamping connection inside the lifting disc (62), each air charging pipe (60) corresponds to each water inlet groove (11) one by one, and racks (600) are arranged on the lower bottom surfaces of the air charging pipes (60); pinion gears (620) are rotatably clamped in the lifting disc (62) and at positions corresponding to the racks (600), and a driving gear ring (621) and a miniature motor (63) are rotatably clamped in the lifting disc (62), wherein the driving gear ring (621) is in meshed connection with each pinion gear (620) and provides power for the driving gear ring (621).
7. A multistage treatment device for contaminated groundwater remediation according to claim 3, characterized in that the stuffing box (50) is provided with a PLC controller electrically connected to the suction pump (23) and the power motor (41).
8. A multistage treatment device for contaminated groundwater remediation according to claim 7, characterized in that said stuffing box (50) is provided with a water quality monitor (7) electrically connected to said PLC controller, the monitoring probe of said water quality monitor (7) being located inside the well pipe (10).
9. A multistage treatment method for contaminated groundwater remediation using the apparatus of any one of claims 1 to 8, comprising the steps of:
s1, drilling operation is carried out in a groundwater pollution area, after the drilling operation is completed, the well pipe (10) is placed in a well hole, and the fixed disc (1) is fixed with the ground of a wellhead; finally, the suction pump (23) and the power motor (41) are respectively connected with an external power supply;
s2, groundwater in the soil enters the interior of the well pipe (10) through a water inlet groove (11) on the well pipe (10); then, starting a suction pump (23), pumping the polluted underground water into a filter tank (20) through a water inlet pipe (12), and primarily filtering the polluted underground water by using a filter screen sleeve (21) in the filter tank (20), wherein the filtered polluted underground water enters a flocculation tank (30) through a water permeable groove (200) on the filter tank (20);
s3, adding a flocculating agent into the flocculation tank (30) through a feeding pipe (300), then starting a power motor (41) and a vibrating member (33), simultaneously driving a first fluted disc (42) and a second fluted disc (43) to rotate by using the power motor (41), driving a filter screen sleeve (21) to rotate by a toothed sleeve (210) in the rotating process of the first fluted disc (42), and cleaning pollutants attached to the inner wall of the filter screen sleeve (21) by using a pollutant scraping plate (220) on a limiting rod (22) in the rotating process of the filter screen sleeve (21); meanwhile, in the rotation process of the second fluted disc (43), each shaft lever (32) is driven to rotate through a connecting gear (320), each vibration disc (31) is driven by a vibration member (33) to vibrate up and down along the shaft lever (32), and mixing of flocculant and sewage is promoted; wherein the flocculant is polyaluminum chloride, and the addition amount of the flocculant is 0.2% of the total volume of the sewage;
s4, discharging the flocculated and purified sewage through a drain pipe (302), and discharging flocculated sediment in the flocculation tank (30) through a slag discharge pipe (301).
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