CN115572015A - Extraction type treatment device and method for removing insoluble organic pollutants in groundwater - Google Patents

Abstract

The invention discloses a draw-out type treatment device and a method for removing insoluble organic pollutants in underground water, and the draw-out type treatment device comprises an adjusting tank, a coagulating sedimentation tank, a sludge concentration tank, a screw stacking machine, a biological denitrification tank and an activated carbon filtering tank, wherein a rotating shaft is arranged in the adjusting tank, a plurality of driving blades are arranged on the rotating shaft, a first belt pulley is arranged on the rotating shaft, a gear mechanism is arranged in the coagulating sedimentation tank, the gear mechanism comprises a gear ring, a first gear, at least one second gear and a connecting rod, the first gear is provided with a first stirring roller, the second gear is provided with a second stirring roller, a medicine storage tank is arranged above the coagulating sedimentation tank, and the medicine storage tank is connected with the coagulating sedimentation tank through a medicine conveying pipe.

Description

Extraction type treatment device and method for removing insoluble organic pollutants in groundwater

technical field

The invention relates to the technical field of groundwater remediation, in particular to a pump-out treatment device and method for removing insoluble organic pollutants in groundwater.

Background technique

The main reasons for groundwater pollution are: direct discharge of industrial wastewater to the ground, intrusion of polluted surface water into the underground aquifer, infiltration of human and animal feces or contaminated water due to excessive use of pesticides, etc., and the result of pollution is that the groundwater The content of harmful components such as phenol, chromium, mercury, arsenic, radioactive substances, bacteria, organic matter, etc. increases, and the polluted groundwater will cause harm to human health and industrial and agricultural production.

Extraction treatment technology is widely used in the world. It is one of the most commonly used groundwater restoration technologies and the earliest groundwater restoration technology. This technology has a simple principle and is very mature. The contaminated groundwater is extracted by pumps. After reaching the ground, the pollutants in the groundwater are removed through treatment facilities and equipment, and discharged into the corresponding pipe network or water body after reaching the specified discharge standard, or directly reinjected into the underground environment, so as to achieve the purification effect of groundwater. The advantage of extraction treatment is that the technology is simple, and it can be combined with engineering precipitation. It is suitable for the pollution purification treatment of most groundwater. The adjustment tank set by the existing groundwater extraction treatment device often only pumps groundwater into the adjustment tank with a large space. In this way, the impact force of the water flow is reduced, which will lead to the need to design the size of the regulating tank to be very large, which not only takes up too much space, but also consumes too much material, and after the groundwater is pumped out, the flocculation agent is only added to it and waits for it to settle by itself , not only takes too much time, but also often has the problem of insufficient mixing of flocculant and groundwater, resulting in unsatisfactory purification effect. Therefore, a pump-out treatment device for removing insoluble organic pollutants in groundwater is now needed.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a withdrawal treatment device and method for removing insoluble organic pollutants in groundwater.

The technical solution of the present invention is: a pump-out treatment device for removing insoluble organic pollutants in groundwater, including a regulating tank, a coagulation sedimentation tank, a sludge concentration tank, a screw stacker, a biological denitrification tank and an activated carbon filter tank. The regulating tank is installed on the ground through a bracket, and a water inlet pipe is provided on one side of the regulating pond, and a pump is provided on the water inlet pipe, and the other side of the regulating pond is connected to the coagulation-sedimentation tank through a drain pipe, and the coagulation-sedimentation tank passes through The drainage pipe is connected to the sludge concentration tank, and the top surface of the sludge settling tank is provided with a bracket for supporting the coagulation settling tank, and one side of the sludge settling tank is connected to the screw stacker through a sludge discharge pipe, and The other side of the sludge sedimentation tank is sequentially connected with the biological denitrification tank and the activated carbon filter tank through a drain pipe, and one side of the activated carbon filter tank is provided with an outlet pipe, and the drain pipes are all provided with valves;

A rotating shaft that runs through the top surface of the regulating pool and is rotatably connected with the top surface of the regulating pool is provided in the regulating pool along the vertical direction. The rotating shaft located in the regulating pool is provided with a plurality of driving blades, and the rotating shaft located outside the regulating pool is provided with a first pulley;

The coagulation-settling tank is provided with a gear mechanism, the gear mechanism includes a ring gear, a first gear, at least one second gear and a connecting rod, the ring gear is fixedly connected to the inner wall of the coagulation-settling tank, and the first gear Located in the center of the ring gear, the second gear is arranged between the first gear and the ring gear and meshes with the first gear and the ring gear respectively, and the center of the first gear is fixed along the vertical direction through the The top surface of the coagulation-sedimentation tank and the first stirring roller that is rotatably connected to the top surface of the coagulation-settling tank, the center of the second gear is fixed with the second stirring roller along the vertical direction, and the connecting rod is rotatably sleeved on the On the first stirring roller, the connecting rod is rotatably connected with the second gear, the connecting rod is in sliding contact with the upper surface of the first gear, the top of the first stirring roller is provided with a second pulley, and the second The pulley is connected to the first pulley through a belt drive;

A drug storage tank is arranged above the coagulation-settling tank, and the drug storage tank is connected with the coagulation-settling tank through a drug delivery pipe.

Explanation: Through the above settings, the rotating shaft is set in the adjustment tank, and the driving blades are set on the rotating shaft, which can not only reduce the space required to relieve the impact force of the water flow, but also use the impact force of the water flow to drive the first pulley so that the first pulley drives the second pulley. The pulley rotates, and the second pulley drives the first stirring roller to rotate. By setting the gear mechanism, the second stirring roller can revolve along the track of the ring gear under the condition of self-rotation, which improves the mixing effect of groundwater and coagulation agent, and makes the water body and The flocculation agent is fully mixed to improve the flocculation effect of the water body.

Further, a plurality of stirring blades are provided on the first stirring roller and the second stirring roller.

Explanation: Through the above settings, the stirring effect of the first stirring roller and the second stirring roller can be improved, and the mixing efficiency of the water body and the coagulation agent can be improved.

Further, a baffle plate is provided in the sludge thickening tank, the baffle plate is set at an angle of 20° to the horizontal direction, and a plurality of filter holes are provided on the baffle plate for the water body to pass through, and the sludge thickening tank A slide rail is arranged in the pool, and the slide rail is arranged above the baffle plate, and the slide rail is arranged parallel to the baffle plate, and an electric mud scraper is arranged on the slide rail.

Description: Through the above settings, the sludge can flow into the screw stacker along the baffle, and the water can flow out along the sieve holes on the baffle to the biological denitrification tank for biological denitrification treatment, and the electric sludge scraper is set The plate can not only push the sludge into the screw stacker, but also can clean the baffle, avoiding the problem of screen hole clogging caused by too much sludge.

Further, the biological denitrification pool is provided with electric heating wires, and the electric heating wires are electrically connected to a controller provided on the outer wall of the biological denitrification pool.

Explanation: The best temperature for biological denitrification treatment using nitrifying bacteria is about 30°C. When the temperature is lower than 10°C, the speed of biological denitrification treatment will drop significantly, and when the temperature is as low as 3°C, the effect of biological denitrification treatment will be reduced. Stop, through the above settings, the temperature of the biological denitrification pool can be controlled, thereby improving the efficiency of biological denitrification of the water body.

Further, an ultraviolet disinfection lamp is provided in the activated carbon filter pool.

Explanation: Through the above settings, the water body in the activated carbon filter tank can be sterilized, which improves the purification efficiency of groundwater.

Further, one side of the activated carbon filter pool is connected to the clean water pool through a water outlet pipe, and a backwash pump is provided on the water outlet pipe.

Explanation: Through the above settings, the purified water can be collected, and the backwash pump can be set to backwash the outlet pipe intermittently, avoiding the problem of blockage of the outlet pipe.

Further, the screw stacker is provided with a filter tank, the filter tank is connected to the regulating pool through a connecting pipe, the connecting pipe is provided with a water pump, and the water pump is arranged on the top surface of the regulating pool.

Explanation: Through the above settings, the water that seeps out after the screw stacker squeezes the sludge can be collected for secondary purification, avoiding the waste of water.

Further, the upper end of the rotating shaft passes through the first pulley and is connected to the output shaft of the backup motor provided on the first pulley.

Note: Through the above settings, when the groundwater flow rate is slow, the kinetic energy generated by the impact of the water flow cannot drive the rotating shaft to rotate. At this time, the backup motor can be turned on to drive the rotating shaft, thereby driving the first stirring roller and the second stirring roller to the mixer. The condensate sedimentation tank is stirred.

Further, a drug dispensing mechanism is provided above the coagulation sedimentation tank, the drug dispensing mechanism includes a switch and a drive assembly, the drug delivery tube is provided with a through hole, and the switch passes through the through hole and is slidably sealed with the drug delivery tube One end of the switch is fixed with an arc-shaped pressure plate, the top surface of the coagulation sedimentation tank is provided with a fixed plate, the other end of the switch is connected to the fixed plate through a spring, and the switch is provided with an opening for liquid medicine to pass through ;

The drive assembly includes a first drive plate, a second drive plate and a driven wheel, the first drive plate and the second drive plate are fixedly sleeved on the first stirring roller from top to bottom in sequence, and the The driven wheel is provided with a plurality of bar-shaped chutes, and the driven wheel is provided with a plurality of first arc-shaped grooves, and the first driving disc is provided with a second arc-shaped chute for passing the driven wheel , The second driving disc is provided with a shaft pin corresponding to the second arc-shaped chute to cooperate with the bar-shaped chute to rotate the driven wheel.

Explanation: Through the above setting, the rotation of the first stirring roller can be used to drive the medicine dispensing mechanism, so that the flocculation medicine in the medicine storage tank can flow into the coagulation sedimentation tank intermittently, saving the cost of using the coagulation medicine.

A method for removing insoluble organic pollutants in groundwater by a pumping treatment device, comprising the following steps:

S1. Pump the groundwater into the adjustment tank, open the valve of the drain pipe between the adjustment tank and the coagulation tank, and the ground water flows into the coagulation sedimentation tank along the drain pipe and drives the shaft to rotate;

S2. Add flocculant into the coagulation sedimentation tank, and the first stirring roller and the second stirring roller rotate around the ring gear under the drive of the rotating shaft and rotate on their own to mix and stir the water body and the medicament;

S3. Open the valve of the drain pipe between the coagulation sedimentation tank and the sludge thickening tank, and open the valve of the drain pipe between the sludge thickening tank and the biological denitrification tank, open the switch of the electric mud scraper, and the treated water passes through the baffle The filter hole on the top flows out and flows into the biological denitrification tank through the drain pipe, and the sediment enters the screw stacker along the baffle under the action of the electric mud scraper;

S4. Turn on the switch of the heating wire of the biological denitrification tank to heat the biological denitrification tank, and the water body will be denitrified in the biological denitrification tank. At the same time, turn on the switch of the screw stacker to squeeze the sediment, and the screw stacker will squeeze The discharged water is discharged into the filter tank, the massive sediment after compression is discharged and collected, and the water pump connected to the filter tank is turned on to pump the water in the filter tank into the regulating tank for secondary treatment;

S5. After the water body is treated in the biological denitrification tank for a period of time, turn on the ultraviolet lamp in the activated carbon filter tank, and open the valve of the drain pipe between the biological denitrification tank and the activated carbon filter tank, and discharge the water body into the activated carbon filter tank for filtration. The water body is discharged into the clear water pool through the outlet pipe, and the backwash pump is turned on every once in a while to backwash the outlet pipe to prevent the outlet pipe from being blocked.

The beneficial effects of the present invention are:

(1) The withdrawable treatment device of the present invention is provided with a rotating shaft in the regulating tank, and the driving blades are arranged on the rotating shaft, which not only reduces the space required for buffering the water body, but also can use the impact force of the water flow to drive the stirring rod in the coagulation sedimentation tank to the groundwater and mixing The coagulant is stirred, and the gear mechanism can be used to make the second stirring roller revolve along the track of the ring gear under the condition of self-rotation, which improves the mixing effect of the groundwater and the coagulant.

(2) The pull-out treatment device of the present invention uses the first stirring roller to drive the dosing mechanism to control the intermittent release of the flocculation agent into the coagulation sedimentation tank, which reduces the cost of using the flocculation agent.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a withdrawable processing device in Embodiment 1 of the present invention;

Fig. 2 is a schematic structural view of the adjustment tank of the withdrawable processing device of the present invention;

Fig. 3 is the structural representation of the coagulation sedimentation tank of the extracting treatment device of the present invention;

Fig. 4 is a partial structural schematic diagram of the withdrawable processing device of the present invention;

Fig. 5 is a schematic structural view of the sludge thickening tank of the withdrawable treatment device of the present invention;

Fig. 6 is a schematic diagram of the overall structure of a withdrawable processing device in Embodiment 2 of the present invention;

Fig. 7 is a partial structural schematic diagram of a withdrawable processing device according to Embodiment 2 of the present invention;

Fig. 8 is a schematic structural view of the medicine dispensing mechanism of the withdrawable treatment device according to Embodiment 2 of the present invention;

Among them, 1-adjusting tank, 11-inlet pipe, 12-rotating shaft, 13-first pulley, 2-coagulation sedimentation tank, 21-gear mechanism, 211-ring gear, 212-first gear, 213-second gear , 214-connecting rod, 22-first stirring roller, 23-second stirring roller, 24-second pulley, 25-drug storage tank, 26-drug delivery tube, 27-drug dispensing mechanism, 271-switch, 2711-arc Shaped pressing plate, 272-drive assembly, 2721-first drive disc, 2722-second drive disc, 2723-driven wheel, 2724-shaft pin, 28-fixed plate, 3-sludge thickening tank, 31-baffle plate, 32 - slide rail, 33- electric mud scraper, 34- mud discharge pipe, 4- screw stacker, 41- filter tank, 5- biological denitrification tank, 6- activated carbon filter tank, 61- outlet pipe, 7- pump , 8-backwash pump, 9-clean water pool.

detailed description

The present invention will be further described in detail below in conjunction with specific embodiments, so as to better reflect the advantages of the present invention.

Example 1

As shown in Figures 1 and 2, the extraction treatment device for removing insoluble organic pollutants in groundwater includes a regulating tank 1, a coagulation sedimentation tank 2, a sludge concentration tank 3, a screw stacker 4, a biological denitrification tank 5 and Activated carbon filter tank 6, the adjustment tank 1 is arranged on the ground through a bracket, the right side of the adjustment tank 1 is provided with a water inlet pipe 11, and the water inlet pipe 11 is provided with a water pump 7, and the water pump 7 is a commercially available water pump The left side of the adjustment tank 1 is connected to the coagulation sedimentation tank 2 through a drain pipe, the coagulation sedimentation tank 2 is connected to the sludge concentration tank 3 through a drain pipe, and the top surface of the sludge sedimentation tank is provided with a supporting coagulation The support of the sedimentation tank 2, the right side of the sludge sedimentation tank is connected with the screw stacker 4 through the sludge discharge pipe 34, and the left side of the sludge sedimentation tank is connected with the biological denitrification tank 5 and the The activated carbon filter pool 6, the left side of the activated carbon filter pool 6 is connected with the clear water pool 9 through the water outlet pipe 61, the water outlet pipe 61 is provided with a backwash pump 8, and the biological denitrification pool 5 is provided with a heating wire. The heating wire is electrically connected with the controller located on the outer wall of the biological denitrification pool 5, the controller is a commercially available temperature controller, and the activated carbon filter pool 6 is provided with an ultraviolet sterilizing lamp, and the ultraviolet sterilizing lamp is Commercially available ultraviolet disinfection lamps, the drain pipes are all provided with valves;

The adjusting pool 1 is vertically provided with a rotating shaft 12 that runs through the top surface of the adjusting pool 1 and is rotatably connected with the top surface of the adjusting pool 1. Eight driving blades are arranged on the rotating shaft 12 in the adjusting pool 1 , and a first pulley 13 is arranged on the rotating shaft 12 outside the adjustment pool 1, and the upper end of the rotating shaft 12 runs through the first pulley 13 and is connected with the output shaft of the backup motor provided on the first pulley 13;

The screw stacker 4 is provided with a filter tank 41, and the filter tank 41 is connected with the regulating tank 1 through a connecting pipe, and the connecting pipe is provided with a water pump 7, and the water pump 7 is arranged on the top of the regulating tank 1 On the other hand, the water pump 7 is a commercially available water pump;

As shown in Figures 1, 3 and 4, a gear mechanism 21 is provided in the coagulation sedimentation tank 2, and the gear mechanism 21 includes a ring gear 211, a first gear 212, two second gears 213 and a connecting rod 214, The ring gear 211 is fixedly connected to the inner wall of the coagulation-sedimentation tank 2, the first gear 212 is located at the center of the ring gear 211, and the second gear 213 is arranged between the first gear 212 and the ring gear 211 and connected to the second gear respectively. A gear 212 meshes with the ring gear 211, and the center of the first gear 212 is fixed along the vertical direction with a first agitator that runs through the top surface of the coagulation sedimentation tank 2 and is rotatably connected to the top surface of the coagulation sedimentation tank 2. Roller 22, the center of circle of described second gear 213 is fixedly provided with second agitating roller 23 along vertical direction, and described first agitating roller 22, described second agitating roller 23 are all provided with several agitating blades, so The connecting rod 214 is rotatably sleeved on the first stirring roller 22, and the connecting rod 214 is rotatably connected with the second gear 213, the connecting rod 214 is in sliding contact with the upper surface of the first gear 212, and the first The top of the stirring roller 22 is provided with a second pulley 24, and the second pulley 24 is connected with the first pulley 13 through a belt drive;

A drug storage tank 25 is arranged above the coagulation-settling tank 2, and the drug storage tank 25 is connected with the coagulation-settling tank 2 through a drug delivery pipe 26;

As shown in Figure 5, a baffle 31 is provided in the sludge thickening tank 3, and the baffle 31 is set at an angle of 20° to the horizontal direction, and several holes for water passing through are provided on the baffle 31. filter hole, the sludge thickening tank 3 is provided with a slide rail 32, the slide rail 32 is arranged above the baffle plate 31, and the slide rail 32 is arranged in parallel with the baffle plate 31, and the slide rail 32 is provided with An electric mud scraper 33, the electric mud scraper 33 is a commercially available electric mud scraper.

The use method of the above-mentioned withdrawable treatment device: open the water pump 7 on the water inlet pipe 11, pump the groundwater into the regulating tank 1, and the water body washes the driving blades on the rotating shaft 12, and while reducing the impact force of the groundwater, the rotating shaft 12 Driven by the water flow, the rotating shaft 12 drives the first pulley 13 to rotate. When the flow velocity of the water flow is too slow and the kinetic energy generated by the water flow cannot drive the rotating shaft 12 to rotate, the first pulley 13 can be turned on. The rotating shaft 12 is driven;

Open the valve on the drain pipe between the adjustment tank 1 and the coagulation sedimentation tank 2, the water flows into the coagulation sedimentation tank 2 along the drain pipe, and at the same time, the medicines such as PAC and PAM in the medicine storage tank 25 flow along the medicine delivery pipe 26 flows into the coagulation-settling tank 2, the second pulley 24 on the upper end of the first stirring roller 22 arranged in the coagulation-settling tank 2 rotates under the drive of the first pulley 13, and the first stirring roller 22 is driven by the second pulley 24 to rotate, the first stirring roller 22 drives the first gear 212 to rotate, the first gear 212 drives the two second gears 213 located on both sides to rotate along the track of the ring gear 211, and the two second gears Both gears 213 drive the second stirring roller 23 to rotate along the track of the ring gear 211 while rotating;

After the groundwater reacts with the coagulation agent in the coagulation sedimentation tank 2 for a period of time, the valve on the drain pipe between the coagulation sedimentation tank 2 and the sludge concentration tank 3 is opened, and the groundwater drives the sediment to flow into the sludge concentration tank 3, Under the action of the electric mud scraper 33, the sludge enters the screw stacker 4 along the baffle plate 31 through the mud discharge pipe 34, and the groundwater mixed with the sludge flows down along the sieve holes on the baffle plate 31, and the screw stacker is opened. The machine 4 squeezes the sludge, and the squeezed sludge is discharged from the outlet of the screw stacker 4 for collection, and the filtered water after the squeezed sludge flows into the filter tank 41, and the water in the filter tank 41 passes through the The water pump 7 on the top surface of the adjustment tank 1 flows into the adjustment tank 1 for further purification;

Open the valve of the drain pipe between the sludge thickening tank 3 and the biological denitrification tank 5, groundwater flows into the biological denitrification tank 5, controls the temperature of the heating wire of the biological denitrification tank 5, and controls the temperature of the biological denitrification tank 5 At about 30°C, the groundwater is denitrified in the biological denitrification tank 5;

Open the valve of the drain pipe between the biological denitrification pool 5 and the activated carbon filter pool 6, drain the groundwater into the activated carbon filter pool 6, and turn on the ultraviolet disinfection lamp to perform the final filtration and disinfection of the ground water, and the filtered ground water passes through the outlet pipe 61 is discharged into the clean water tank for collection, and the backwash pump 8 is turned on every once in a while to backwash the outlet pipe 61.

Example 2

This embodiment is basically the same as Embodiment 1, except that, as shown in Figures 6, 7, and 8, a drug-feeding mechanism 27 is provided above the coagulation-sedimentation tank 2, and the drug-feeding mechanism 27 includes a switch 271 and a drive Assembly 272, the drug delivery tube 26 is provided with a through hole, the switch 271 runs through the through hole and is connected with the drug delivery tube 26 in a sliding seal, one end of the switch 271 is fixed with an arc-shaped pressing plate 2711, and the coagulation The top surface of the sedimentation tank 2 is provided with a fixed plate 28, and the other end of the switch 271 is connected to the fixed plate 28 through a spring, and the switch 271 is provided with an opening for the liquid medicine to pass through;

The driving assembly 272 includes a first driving disc 2721, a second driving disc 2722 and a driven wheel 2723. The first driving disc 2721 and the second driving disc 2722 are fixedly sleeved on the first driving disc 2721 from top to bottom. On the stirring roller 22, the driven wheel 2723 is provided with six strip chutes, and the driven wheel 2723 is provided with a plurality of first arc-shaped grooves, and the first driving disc 2721 is provided with six for The second arc-shaped chute that allows the driven wheel 2723 to pass through, and the corresponding position of the second drive plate 2722 to the second arc-shaped chute is provided with the bar-shaped chute to make the driven wheel 2723 rotate. Shaft pin 2724.

The use method of the above-mentioned withdrawable processing device: the use method is basically the same as that of Embodiment 1, the difference is that when the first stirring roller 22 rotates, it drives the first drive disc 2721 and the second drive disc 2722 to rotate, and when the shaft pin When 2724 rotates into the strip chute of the driven wheel 2723, the first driving disc 2721 and the second driving disc 2722 drive the driven wheel 2723 to rotate, and the driven wheel 2723 presses the arc-shaped pressing plate 2711 to make the switch 271 slide in the drug delivery tube 26 , the coagulation liquid flows into the coagulation sedimentation tank 2 along the through hole of the switch 271, when the driven wheel 2723 leaves the arc-shaped pressure plate 2711, the switch is reset by the action of the spring to block the drug delivery tube 26, and the pivot pin 2724 After leaving the bar-shaped chute, the first driving disc 2721 drives the driven wheel 2723 to rotate along the second arc-shaped groove of the driven wheel 2723 .

Example 3

A method for removing insoluble organic pollutants in groundwater by means of a pumping treatment device, comprising the following steps:

S1. Pump the groundwater into the adjustment tank 1, open the valve of the drain pipe between the adjustment tank 1 and the coagulation tank, and the ground water flows into the coagulation sedimentation tank 2 along the drain pipe and drives the rotating shaft 12 to rotate;

S2, adding flocculant into the coagulation sedimentation tank 2, the first stirring roller 22 and the second stirring roller 23 are driven by the rotating shaft 12 to rotate around the ring gear 211 and rotate to mix and stir the water body and the medicament;

S3, open the valve of the drain pipe between the coagulation sedimentation tank 2 and the sludge thickening tank 3, and open the valve of the drain pipe between the sludge thickening tank 3 and the biological denitrification tank 5, open the switch 271 of the electric mud scraping plate, The treated water flows out through the filter holes on the baffle 31 and flows into the biological denitrification tank 5 through the drain pipe, and the sediment enters the screw stacker 4 along the baffle 31 under the action of the electric mud scraper 33;

S4, turn on the switch 271 of the electric heating wire of the biological denitrification pool 5 to heat the biological denitrification pool 5, the water body is denitrified in the biological denitrification pool 5, and at the same time turn on the switch 271 of the screw stacker 4 to squeeze the sediment , the screw stacker 4 discharges the extruded water body into the filter water tank, discharges and collects the massive sediment after the compression is completed, and turns on the water pump 7 connected to the filter water tank to pump the water body in the filter water tank into the adjustment pool 1 Secondary processing within;

S5. After the water body is treated in the biological denitrification pool 5 for a period of time, turn on the ultraviolet light in the activated carbon filter pool 6, and open the valve of the drain pipe between the biological denitrification pool 5 and the activated carbon filter pool 6, and discharge the water body into the activated carbon Filtration is carried out in the filter pool 6, and the filtered water is discharged into the clear water pool through the outlet pipe 61, and the backwash pump 8 is turned on at regular intervals to backwash the outlet pipe 61 to prevent the outlet pipe 61 from being blocked.

Claims (10)

1. The extraction treatment device for removing insoluble organic pollutants in groundwater is characterized in that it includes a regulating tank (1), a coagulation sedimentation tank (2), a sludge thickening tank (3), a screw stacker (4), Biological denitrification tank (5) and active carbon filter tank (6), described adjustment tank (1) is arranged on the ground through support, and one side of adjustment tank (1) is provided with water inlet pipe (11), and described water inlet pipe (11 ) is provided with a water pump (7), the other side of the regulating tank (1) is connected to the coagulation sedimentation tank (2) through a drain pipe, and the coagulation sedimentation tank (2) is connected to the sludge thickening tank (3) through a drain pipe ) connection, and the top surface of the sludge settling tank is provided with a support for supporting the coagulation settling tank (2), and one side of the sludge settling tank is connected to the screw stacker (4) through the sludge discharge pipe (34) connected, and the other side of the sludge settling tank is sequentially connected with the biological denitrification tank (5) and the activated carbon filter tank (6) through a drain pipe, and one side of the activated carbon filter tank (6) is provided with an outlet pipe ( 61), the drainpipes are provided with valves; The adjusting pool (1) is vertically provided with a rotating shaft (12) that runs through the top surface of the adjusting pool (1) and is rotatably connected with the top surface of the adjusting pool (1). The rotating shaft (12) is provided with a plurality of driving blades, and the rotating shaft (12) outside the regulating pool (1) is provided with a first pulley (13); The coagulation sedimentation tank (2) is provided with a gear mechanism (21), and the gear mechanism (21) includes a ring gear (211), a first gear (212), at least one second gear (213) and a connecting rod (214), the ring gear (211) is fixedly connected to the inner wall of the coagulation sedimentation tank (2), the first gear (212) is located at the center of the ring gear (211), and the second gear (213) is located at Between the first gear (212) and the ring gear (211) and meshes with the first gear (212) and the ring gear (211) respectively, the center of the first gear (212) is fixed along the vertical direction with a penetrating The top surface of the coagulation-settling tank (2) and the first stirring roller (22) that is rotatably connected to the top surface of the coagulation-settling tank (2), and the center of circle of the second gear (213) are fixedly installed along the vertical direction. There is a second agitating roller (23), the connecting rod (214) is rotatably set on the first agitating roller (22), and the connecting rod (214) is rotatably connected with the second gear (213), and the connecting rod (214) is rotatably connected to the second gear (213). The rod (214) is in sliding contact with the upper surface of the first gear (212), the top of the first stirring roller (22) is provided with a second pulley (24), and the second pulley (24) is in contact with the first Belt pulley (13) is connected by belt drive; A drug storage tank (25) is arranged above the coagulation-settling tank (2), and the drug storage tank (25) is connected to the coagulation-settling tank (2) through a drug delivery pipe (26). 2. according to claim 1, remove the extraction type treatment device of insoluble organic pollutants in groundwater, it is characterized in that, described first agitating roller (22), described second agitating roller (23) are equipped with multiple a stirring blade. 3. According to claim 1, the extraction type treatment device for removing insoluble organic pollutants in groundwater is characterized in that, a baffle (31) is provided in the sludge thickening tank (3), and the baffle (31 ) and the horizontal direction are set at an angle of 20°, and the baffle plate (31) is provided with a plurality of filter holes for water passing through, and a slide rail (32) is provided in the sludge thickening tank (3), so The slide rail (32) is arranged above the baffle (31), and the slide rail (32) is arranged in parallel with the baffle (31), and the electric mud scraper (33) is arranged on the slide rail (32). 4. According to claim 1, the withdrawable treatment device for removing insoluble organic pollutants in groundwater is characterized in that, the biological denitrification pool (5) is provided with a heating wire, and the heating wire is connected with the biological denitrification tank. The controller on the outer wall of the pool (5) is electrically connected. 5. The extraction type treatment device for removing insoluble organic pollutants in groundwater according to claim 1, wherein an ultraviolet disinfection lamp is provided in the activated carbon filter pool (6). 6. according to claim 5, remove the extraction type treatment device of insoluble organic pollutants in groundwater, it is characterized in that, one side of the activated carbon filter pool (6) is connected with the clear water pool (9) by an outlet pipe (61), A backwash pump (8) is provided on the outlet pipe (61). 7. According to claim 1, the extraction type treatment device for removing insoluble organic pollutants in groundwater is characterized in that, the screw stacker (4) is provided with a filter box (41), and the filter box (41) passes through The connecting pipe is connected with the adjusting pool (1), and the connecting pipe is provided with a water pump (7), and the water pump (7) is arranged on the top surface of the adjusting pool (1). 8. According to claim 1, the extraction type treatment device for removing insoluble organic pollutants in groundwater is characterized in that, the upper end of the rotating shaft (12) runs through the first pulley (13) and is arranged on the first pulley ( 13) Connect to the output shaft of the spare motor on. 9. According to claim 1, the extraction type treatment device for removing insoluble organic pollutants in groundwater is characterized in that, a drug feeding mechanism (27) is provided above the coagulation sedimentation tank (2), and the drug feeding mechanism (27) ) includes a switch (271) and a drive assembly (272), the drug delivery tube (26) is provided with a through hole, the switch (271) passes through the through hole and is in sliding and sealing connection with the drug delivery tube (26), the One end of the switch (271) is fixed with an arc-shaped pressure plate (2711), the top surface of the coagulation sedimentation tank (2) is provided with a fixed plate (28), and the other end of the switch (271) is connected to the fixed plate (28) by a spring. ) is connected, and the switch (271) is provided with an opening for the passage of medicinal liquid; The drive assembly (272) includes a first drive disc (2721), a second drive disc (2722) and a driven wheel (2723), the first drive disc (2721), the second drive disc (2722) from It is fixedly sleeved on the first stirring roller (22) from top to bottom, and the driven wheel (2723) is provided with a plurality of bar-shaped chutes, and the driven wheel (2723) is provided with a plurality of first arcs. shaped groove, the first drive disc (2721) is provided with a second arc-shaped chute for the driven wheel (2723) to pass through, and the second drive disc (2722) is connected with the second arc A shaft pin (2724) that cooperates with the bar-shaped chute to rotate the driven wheel (2723) is provided at the corresponding place of the chute. 10. The method for removing insoluble organic pollutants in groundwater by using any one of claim 1-9 extraction type treatment device, is characterized in that, comprises the following steps: S1. Pump the groundwater into the adjustment tank (1), open the valve of the drain pipe between the adjustment tank (1) and the coagulation tank, and the ground water flows into the coagulation sedimentation tank (2) along the drain pipe and drives the rotating shaft (12 ) rotation; S2. Add flocculant into the coagulation sedimentation tank (2), the first stirring roller (22) and the second stirring roller (23) are driven by the rotating shaft (12) to rotate around the ring gear (211) and rotate to the water body Mix and stir with the medicine; S3, open the valve of the drain pipe between the coagulation sedimentation tank (2) and the sludge thickening tank (3), and open the valve of the drain pipe between the sludge thickening tank (3) and the biological denitrification tank (5), open The switch (271) of the electric mud scraper, the treated water flows out through the filter holes on the baffle (31) and flows into the biological denitrification tank (5) through the drain pipe, and the sediment flows along the baffle (31) Enter the screw stacker (4) under the action of the electric mud scraper (33); S4, open the switch (271) of the heating wire of the biological denitrification pool (5) to heat the biological denitrification pool (5), the water body is denitrified in the biological denitrification pool (5), and simultaneously turn on the screw stacker (4 ) switch (271) to squeeze the sediment, and the screw stacker (4) discharges the squeezed water into the filter water tank, discharges and collects the compressed massive sediment, and opens the pump connected to the filter water tank The water pump (7) pumps the water in the filter tank into the regulating tank (1) for secondary treatment; S5, after the water body is treated for a period of time in the biological denitrification tank (5), turn on the ultraviolet light in the activated carbon filter tank (6), and open the drainpipe between the biological denitrification tank (5) and the activated carbon filter tank (6) The valve is used to discharge the water body into the activated carbon filter tank (6) for filtration, and the filtered water body is discharged into the clean water pool through the outlet pipe (61), and the backwash pump (8) is turned on at regular intervals to clean the outlet pipe (61). Backwash prevents outlet pipe (61) from clogging.

Images