CN118495756A - Pretreatment equipment and detection method for chlorophenols in wastewater - Google Patents

Abstract

The invention discloses a pre-treatment device and a detection method for chlorophenols in wastewater, belonging to the technical field of wastewater pre-treatment devices. The device comprises a base, a filter assembly, an adsorption assembly, a square plate, a first stirring rod and an aeration stirring rod. An air storage cavity is provided inside the square plate, the air storage cavity is communicated with the filter assembly, a sedimentation box is fixedly installed at the middle position of the upper end of the base, the adsorption assembly is linked with a driving member, an adsorption box is fixedly installed on one side of the upper end of the base, the adsorption assembly is installed in the adsorption box, wastewater is double-filtered through an annular filter net, a cleaning brush can automatically brush the annular filter net, impurities remaining in the mesh are flushed into a collection box through an air supply pipe for collection, the annular filter net does not need to be disassembled, the filtering efficiency is improved, the wastewater mixture can be stirred, and aeration is performed in the wastewater mixture through an air outlet, so that a flocculant and wastewater are fully mixed, and the precipitation speed of substances in the wastewater is accelerated.

Description

A pretreatment device and detection method for chlorophenols in wastewater

Technical Field

The invention belongs to the field of wastewater pretreatment equipment, and specifically relates to a pretreatment equipment and a detection method for chlorophenols in wastewater.

Background Art

During the operation of coal chemical plants, various wastewaters will be generated according to different processes. Among them, highly toxic and difficult to degrade chlorophenol compounds will enter the wastewater. Improper subsequent treatment can easily cause secondary pollution, causing widespread pollution to surface water, groundwater and soil, and causing serious harm to humans and their ecological environment. Before treating chlorophenol compounds in wastewater, it is necessary to pre-treat the wastewater through chlorophenol pretreatment equipment in wastewater to filter out large particle impurities and suspended matter in the wastewater, so as to facilitate subsequent formal treatment.

As shown in the announcement number: CN213738953U, a pretreatment device before industrial wastewater discharge is provided, which is convenient for secondary filtration of industrial wastewater by setting a reflux pump and a reflux pipe, and filters out large particles of debris mixed in the industrial wastewater, thereby improving practicality of use; it includes a filter box, an inlet pipe, a coarse filter plate, a fine filter plate, a water pump support plate, a reflux pump, a reflux pipe, a filter outlet, a filter outlet bucket, a filter outlet pipe, a filter outlet control valve and a support rod, the inlet pipe is connected and arranged on the upper left side of the filter box, the coarse filter plate is fixedly installed laterally inside the filter box, the fine filter plate is fixedly installed laterally inside the filter box on the lower side, the left end of the water pump support plate is connected to the lower right end of the filter box, the lower end of the reflux pump is connected to the upper end of the water pump support plate, the left side of the lower end of the reflux pipe is connected and arranged on the lower right end of the filter box, and the reflux pump is connected to the lower part of the reflux pipe, and the left side of the upper end of the reflux pipe is connected to the upper right end of the filter box.

As shown in the announcement number: CN220201522U, a biochar adsorption device for heavy metal wastewater comprises: a tank body and a cover body arranged on the top of the tank body; a water outlet is arranged at the bottom of the tank body, a water inlet pipe is arranged at the top of the cover body, a driving mechanism is arranged on one side of the water inlet pipe, a first filtering mechanism is arranged at the bottom of the water inlet pipe, a second filtering mechanism is arranged at the bottom of the first filtering mechanism, and a third filtering mechanism is arranged at the bottom of the second filtering mechanism, the first filtering mechanism comprises an inlet pipe connected to the bottom of the water inlet pipe, a rotating drum arranged at the bottom of the water inlet pipe, and a first drain pipe arranged at the bottom of the rotating drum, a first gear is fixedly sleeved on the outer surface of the water inlet pipe, a plurality of filtering holes are arranged on the outer wall of the rotating drum, and the driving mechanism is connected to the first filtering mechanism for driving the first filtering mechanism to rotate.

As shown in the announcement number: CN220214136U, an industrial wastewater filtering equipment includes a tank body, a first connecting pipe is fixedly installed on the outer wall of the tank body, one end of the first connecting pipe is connected to the inside of the bottom of the tank body, the other end of the first connecting pipe is connected to the pump body input end, the pump body output end is connected to the second connecting pipe, the outer wall bottom of the tank body is fixedly connected to one end of the third connecting pipe, the other end of the third connecting pipe is installed with two valve bodies, and the second connecting pipe is fixedly installed with two valve bodies; the two opposite valve bodies are fixedly connected to a shell, a filter element is movably installed inside the shell, two sliders are fixedly installed on the left and right sides of the upper part of the shell, the two corresponding sliders on the left and right are respectively slidably matched with the ends of the splint, the front and back of the shell are fixedly connected to the bottom of the elastic member, and the top of the elastic member is fixedly connected to the splint.

When the common pre-treatment equipment for chlorophenols in wastewater is used, although it can filter the large particles of impurities in the wastewater through the filter, it can also mix by adding flocculants and using a stirring rod. However, when cleaning the filter, the filter is generally removed for cleaning, which is inconvenient, time-consuming and labor-intensive, and has low filtration efficiency. Moreover, when mixing the flocculant and wastewater, only stirring with a stirring rod will not stir the wastewater sufficiently, the sedimentation rate of the substances in the wastewater is slow, and the mixing efficiency is low.

Summary of the invention

The purpose of the present invention is to provide a pretreatment device and detection method for chlorophenols in wastewater in order to solve the above-mentioned problems, which can rotate the annular filter to automatically clean it, improve the stirring effect, and clean the sediment in the sedimentation box while preliminarily adsorbing chlorophenols in the wastewater.

The present invention achieves the above-mentioned purpose through the following technical scheme: a pretreatment device for chlorophenols in wastewater, comprising a base, a filter assembly, an adsorption assembly, a square plate with a circular hole at one end, a first stirring rod driven by a first motor and a symmetrically arranged aeration stirring rod, a mounting frame is fixedly installed on one side of the upper end of the base, a filter box with a liquid inlet bucket at one end is fixedly installed on one end of the mounting frame, the filter assembly is installed on the upper end of the filter box, the square plate is fixedly installed inside the filter box, an air storage cavity is opened inside the square plate, and the air storage cavity is connected to the filter assembly The first stirring rod and the aeration stirring rod are both rotatably mounted at the lower end of the filter box, the square plate is rotatably connected to the aeration stirring rod, the first stirring rod and the aeration stirring rod are linked via a gear set, a liquid storage tank for storing flocculants is fixedly mounted on the upper end of the base, the liquid storage tank is connected to the inside of the first stirring rod, a sedimentation tank is fixedly mounted at the middle position of the upper end of the base, a sedimentation tank is provided at the lower end of the sedimentation tank in a linear array, a movable scraper is mounted on the inner wall of the sedimentation tank via a driving member, and the adsorption assembly is linked to the driving member, The sedimentation box is connected with the filter box through a pipeline, an adsorption box is fixedly installed on one side of the upper end of the base, the adsorption assembly is installed in the adsorption box, the adsorption box is connected with the sedimentation box through a pipeline, and a valve is provided at one end of the pipeline. When in use, the adsorption box is used to store the wastewater solution after precipitation, and the adsorption assembly is used to adsorb chlorophenol substances in the wastewater. A drainage hole with a hole plug inserted inside is opened at one end of the adsorption box for discharging the wastewater solution after adsorption. One end of the scraper is clamped in the sedimentation tank, and the driving member is used to move the A scraper is used to clean the sedimentation tank. The upper end of the square plate can be rotatably connected to the aeration stirring rod through a plane bearing. The air storage chamber provides air for the filter assembly. The filter assembly is used to filter large particles of impurities in the wastewater. The liquid inlet hopper is used to input wastewater. The first motor is fixedly installed on the upper end of the base. The output end of the first motor is fixedly connected to the first stirring rod. The first stirring rod is used to mix wastewater and flocculant. The aeration stirring rod is used to aerate and stir the wastewater. The first stirring rod and the outer side of the aeration stirring rod are both provided with stirring blades.

Preferably, in order to enable the annular filter to rotate, the filter assembly includes an electric drum, which is rotatably installed on the inner wall of the filter box in a left-right distribution, an annular filter is attached to the outside of the electric drum, and a limit rod is rotatably installed inside the filter box, one end of the limit rod is in contact with the annular filter, the electric drum is an existing structure, and is used to adjust the position of the annular filter, and the limit rod is used to limit the position of the upper end of the annular filter so that its upper part is arc-shaped.

Preferably, in order to enable the U-shaped plate to move smoothly, an installation groove is provided on the inner wall of the filter box, and guide rods distributed up and down are fixedly installed inside the installation groove. A U-shaped plate with a square cavity provided inside one end is inserted into one end of the filter box, and one end of the U-shaped plate is sleeved on the outside of the guide rod, and the guide rod is used to guide and limit the U-shaped plate.

Preferably, in order to clean the annular filter, a cleaning brush is symmetrically installed on the outside of the U-shaped plate, one end of the cleaning brush is in contact with the annular filter, one end of the U-shaped plate is installed with an air supply pipe in a linear array, one end of the air supply pipe is connected with the square cavity, and a ventilation pipe is installed inside the filter box, one end of the ventilation pipe passes through the guide rod and is connected with the square cavity, and the other end of the ventilation pipe is connected with the air storage cavity, the cleaning brush is used to brush the annular filter, and the air supply pipe is used to spray air to blow impurities remaining in the mesh of the annular filter into the collection box.

Preferably, in order to fix the U-shaped plate and collect impurities cleaned out by the annular filter, a collection box is plugged into one side of the filter box, a mounting plate is fixedly installed at one end of the filter box, a pin rod is plugged into one end of the mounting plate, one end of the pin rod extends into the U-shaped plate, the collection box can be fixed by bolts, and the pin rod is used to limit the position of the U-shaped plate.

Preferably, in order to aerate the wastewater, an air pump is fixedly installed on one side of the filter box, the output end of the air pump is connected to the air storage chamber through a pipe, a circular cavity is opened inside the aeration stirring rod, the circular cavity is connected to the air storage chamber, air outlet holes are opened in a linear array on the outside of the aeration stirring rod, the air outlet holes are connected to the circular cavity, a waterproof vent valve is fixedly installed inside the air outlet holes, the air pump is an existing structure, used to supply air to the air storage chamber, the air outlet holes are used to evenly flush air into the wastewater, and the waterproof vent valve is used to prevent the wastewater mixture from entering the circular cavity.

Preferably, in order to enable the aeration stirring rods on both sides to rotate simultaneously, a first gear is fixedly mounted on the outer side of one end of the first stirring rod, and a second gear is fixedly mounted on one end of the aeration stirring rod, and the first gear is meshed with the second gear.

Preferably, in order to uniformly add flocculant to the wastewater, a water pump is installed at the upper end of the liquid storage tank through a pipeline, a liquid storage box is rotatably installed on the outer side of the first stirring rod, one end of the liquid storage box is fixedly connected to the base, the water pump is connected to the liquid storage box through a pipeline, a liquid storage cavity is provided inside the first stirring rod, the liquid storage box is connected to the liquid storage cavity, liquid outlet holes are provided in a linear array on the outer side of the first stirring rod, one end of the liquid outlet hole is connected to the liquid storage cavity, a one-way valve is fixedly installed inside the liquid outlet hole, the water pump provides power for the flow of the flocculant, an inflow hole is provided on the outer side of the first stirring rod, the liquid storage box is connected to the liquid storage cavity through the inflow hole, a plurality of liquid outlet holes can be set according to actual conditions, and the one-way valve is used to prevent wastewater from flowing into the liquid storage cavity through the liquid outlet hole.

Preferably, in order to enable the activated carbon plate to rotate in a circle, the adsorption assembly includes a rotating shaft, the rotating shaft is rotatably installed inside the adsorption box, activated carbon plates are installed in a circular array on the outside of the rotating shaft, a second motor is fixedly installed on one side of the adsorption box, the output end of the second motor is fixedly connected to the rotating shaft, the second motor is used to drive the rotating shaft, and the activated carbon plate is used to adsorb chlorophenols in wastewater.

Preferably, in order to enable the scraper to move, the driving member includes a screw and a round rod, and a square groove is opened at the lower ends of the inner walls of both sides of the sedimentation box, the screw is rotatably installed in the square groove, the round rod is fixedly installed in the square groove, the screw is threadedly connected with one end of the scraper, and the other end of the scraper is sleeved on the outside of the round rod, one end of the screw is fixedly installed with a worm gear, and a worm is rotatably installed on the upper end of the base, and the worm is meshed with the worm gear. A cross groove is opened, and a cross rod is inserted in the cross groove, and a baffle is inserted at one end of the sedimentation box, and a discharge hole is opened at the lower end of the sedimentation box, and one end of the baffle extends into the discharge hole. The lower side of the sedimentation box is located on the upper surface of the base and a collecting box for storing sediment is provided, the cross rod is used to connect the worm and the rotating shaft, the worm is used to drive the worm gear, the screw is used to move the scraper, and the round rod plays a limiting role.

The method for detecting chlorophenols in wastewater comprises the following steps:

S1. Pre-treat the wastewater through pre-treatment equipment;

S2. Take the treated wastewater into the test tube, and then fix the test tube for testing;

S3. First, observe with the naked eye whether there are suspended solids in the wastewater, then pour the wastewater to be tested into another test tube equipped with a filter, and observe whether there are particulate impurities attached to the filter;

S4. Then, the chlorophenols in the wastewater to be tested are enriched by solid phase extraction;

S5. Finally, the content of chlorophenols in the wastewater is detected by GC-ECD gas chromatography detector.

The beneficial effects of the present invention are: 1. The wastewater is doubly filtered through the annular filter, the electric drum drives the annular filter to rotate, the cleaning brush brushes the annular filter, and air is evenly sprayed to the annular filter through the air duct to flush the impurities remaining in the mesh of the annular filter into the collection box for collection. There is no need to disassemble the annular filter, which is convenient and fast, saves time and effort, and improves the filtering efficiency.

The aeration stirring rods on both sides are driven to rotate by the gear set to stir the wastewater mixture, thereby increasing the stirring range, and aerating the wastewater mixture through the air outlet, so that the flocculant and wastewater are fully mixed, accelerating the precipitation speed of substances in the wastewater and improving the mixing efficiency.

The air generated by the air pump is input into the square cavity through the ventilation pipe and then ejected through the air supply pipe. There is no need to use a new air pump for air supply, which saves resources and reduces costs.

The activated carbon plate is rotated to repeatedly adsorb chlorophenols in the wastewater, thereby improving the adsorption effect. The worm is driven to rotate by the cross-shaped rod, so that the scraper cleans the sedimentation tank and the precipitated substances are cleaned into the collection box.

The U-shaped plate can be removed by removing the pin rod, so that the cleaning brush can be easily replaced or cleaned.

The flocculant is evenly sprayed into the wastewater through the liquid outlet to mix the flocculant and the wastewater evenly and accelerate the sedimentation speed.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic diagram of the overall cross-sectional structure of the present invention;

FIG3 is a schematic diagram of the filter box connection structure of the present invention;

FIG4 is a schematic diagram of the connection structure of the filter assembly of the present invention;

FIG5 is a schematic cross-sectional view of a U-shaped rod portion of the present invention;

FIG6 is a schematic diagram of a vent pipe connection structure of the present invention;

FIG7 is a schematic diagram of the connection structure between the first stirring rod and the aeration stirring rod of the present invention;

FIG8 is a schematic diagram of the connection structure between the first stirring rod and the liquid storage box of the present invention;

FIG9 is a schematic diagram of the connection structure between the square plate and the aeration stirring rod of the present invention;

FIG10 is a schematic diagram of the connection structure of the adsorption assembly of the present invention;

FIG. 11 is a schematic diagram of the cross-sectional structure of the sedimentation box of the present invention.

The accompanying drawings are marked as follows: 1. base; 2. filter assembly; 201. electric drum; 202. annular filter; 203. limit rod; 204. mounting groove; 205. guide rod; 206. square cavity; 207. U-shaped plate; 208. cleaning brush; 209. air duct; 210. ventilation pipe; 211. collection box; 212. pin rod; 3. adsorption assembly; 301. rotating shaft; 302. activated carbon plate; 303. second motor; 4. square plate; 5. first motor; 6. first stirring rod; 7. aeration stirring rod; 8. mounting frame ;9. Liquid inlet hopper;10. Filter box;11. Air storage chamber;12. Liquid storage box;13. Sedimentation box;14. Sedimentation tank;15. Scraper;16. Adsorption box;17. Air pump;18. Circular cavity;19. Air outlet;20. Waterproof vent valve;21. First gear;22. Second gear;23. Water pump;24. Liquid storage box;25. Liquid storage chamber;26. Liquid outlet;27. One-way valve;28. Lead screw;29. Round rod;30. Worm gear;31. Worm;32. Cross rod;33. Baffle;34. Discharge hole;35. Collection box.

DETAILED DESCRIPTION

The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

Example 1

Please refer to Figures 1 to 11, a pre-treatment device for chlorophenols in wastewater, including a base 1, a filter assembly 2, an adsorption assembly 3, a square plate 4 with a circular hole at one end, a first stirring rod 6 driven by a first motor 5, and a symmetrically arranged aeration stirring rod 7. A mounting frame 8 is fixedly installed on one side of the upper end of the base 1, and a filter box 10 with a liquid inlet hopper 9 at one end is fixedly installed on one end of the mounting frame 8. The filter assembly 2 is installed on the upper end of the filter box 10, and the square plate 4 is fixedly installed inside the filter box 10. An air storage cavity 11 is opened inside the square plate 4, and the air storage cavity 11 is connected to the filter assembly 2. The first stirring rod 6 and the aeration stirring rod 7 are rotatably mounted at the lower end of the filter box 10, the square plate 4 is rotatably connected to the aeration stirring rod 7, the first stirring rod 6 is linked to the aeration stirring rod 7 through a gear set, a liquid storage tank 12 for storing flocculants is fixedly mounted on the upper end of the base 1, the liquid storage tank 12 is connected to the inside of the first stirring rod 6, a sedimentation tank 13 is fixedly mounted at the middle position of the upper end of the base 1, and a sedimentation tank 14 is provided at the lower end of the sedimentation tank 13 in a linear array, a movable scraper 15 is installed on the inner wall of the sedimentation tank 13 through a driving member, the adsorption component 3 is linked to the driving member, the sedimentation tank 13 is connected to the filter box 10 through a pipeline, and one side of the upper end of the base 1 is fixedly mounted There is an adsorption box 16, and the adsorption component 3 is installed in the adsorption box 16. The adsorption box 16 is connected with the sedimentation box 13 through a pipeline. A first gear 21 is fixedly installed on the outer side of one end of the first stirring rod 6, and a second gear 22 is fixedly installed on one end of the aeration stirring rod 7. The first gear 21 is meshed with the second gear 22. When in use, the wastewater is first transported to the filter box 10 through the liquid inlet hopper 9, and the large particles of impurities in the wastewater are filtered out through the filter component 2. Then, the wastewater after filtration flows into the bottom of the filter box 10 through the circular hole, and the first motor 5 is started to drive the first stirring rod 6 to rotate, and the first gear 21 rotates accordingly, and the second gear 2 2 drives the aeration stirring rod 7 to rotate to stir the wastewater, then uniformly transports the flocculant in the liquid storage tank 12 to the inside of the filter box 10 through the inside of the first stirring rod 6 to precipitate the suspended matter in the wastewater, and then transports air into the wastewater through the aeration stirring rod 7 to accelerate the precipitation speed of the substances in the wastewater, and then opens the valve to transport the mixed wastewater to the sedimentation tank 13 through the pipeline for precipitation. After precipitation, the wastewater is transported to the adsorption tank 16 through the pipeline, and the chlorophenol substances in the wastewater are adsorbed by the adsorption component 3, and the scraper 15 is driven by the driving member to move to clean the sediment inside the sedimentation tank 14.

Example 2

As shown in Figures 4 and 5, the present embodiment concretizes the filter assembly 2 to achieve the effect of double filtering of wastewater and automatically cleaning the annular filter screen through a cleaning brush and an air duct. The filter assembly 2 includes an electric drum 201, which is rotatably installed on the inner wall of the filter box 10 in a left-right distribution. An annular filter screen 202 is attached to the outer side of the electric drum 201. A limit rod 203 is rotatably installed inside the filter box 10, and one end of the limit rod 203 is in contact with the annular filter screen 202. An installation groove 204 is opened on the inner wall of the filter box 10, and a guide rod 204 distributed up and down is fixedly installed inside the installation groove 204. 05, a U-shaped plate 207 with a square cavity 206 opened at one end is inserted at one end of the filter box 10, one end of the U-shaped plate 207 is sleeved on the outside of the guide rod 205, and a cleaning brush 208 is symmetrically installed on the outside of the U-shaped plate 207, one end of the cleaning brush 208 is in contact with the annular filter 202, and an air supply pipe 209 is installed in a linear array at one end of the U-shaped plate 207, and one end of the air supply pipe 209 is connected to the square cavity 206. A ventilation pipe 210 is installed inside the filter box 10, one end of the ventilation pipe 210 passes through the guide rod 205 and is connected to the square cavity 206, and the other end of the ventilation pipe 210 is connected to the air storage chamber 11, and the filter box A collecting box 211 is plugged into one side of 10, a mounting plate is fixedly installed at one end of the filter box 10, a pin rod 212 is plugged into one end of the mounting plate, and one end of the pin rod 212 extends into the U-shaped plate 207. When in use, waste water can be filtered twice through the annular filter screen 202, thereby improving the filtering effect. The limiting rod 203 limits the upper end of the annular filter screen 202 to prevent waste water from splashing to both sides. When the annular filter screen 202 needs to be cleaned, the collecting box 211 is first manually moved inward and fixed by bolts, and then the electric roller 201 is started to drive the annular filter screen 202 to move. At this time, the cleaning brush at the inner end of the U-shaped plate 207 is 208 cleans the surface of the annular filter 202 and cleans the impurities into the mesh of the annular filter 202. At the same time, the air pump 17 is started, and the air is transported to the square cavity 206 through the ventilation pipe 210, and then the air is evenly blown to the surface of the annular filter 202 through the air supply pipe 209, and the impurities in the mesh are blown to the collection box 211 for collection. There is no need to disassemble the annular filter 202, which is convenient and fast, saves time and effort, and improves the filtering efficiency. When the cleaning brush 208 needs to be replaced or cleaned, the pin rod 212 is manually removed to release the fixation of the U-shaped plate 207, and then it is manually removed, which is convenient and fast.

Example 3

As shown in FIG9 , the present embodiment concretizes the connection relationship of the aeration stirring rod 7 to achieve the effect of fully mixing the flocculant and the wastewater. An air pump 17 is fixedly installed on one side of the filter box 10. The output end of the air pump 17 is connected to the air storage chamber 11 through a pipeline. A circular cavity 18 is provided inside the aeration stirring rod 7. The circular cavity 18 is connected to the air storage chamber 11. Air outlet holes 19 are provided in a linear array on the outside of the aeration stirring rod 7. The air outlet holes 19 are connected to the circular cavity 18. A waterproof vent valve 20 is fixedly installed inside the air outlet hole 19. When in use, the air pump 17 is started first to transport air into the air storage chamber 11. The air flows into the air outlet hole 19 through the circular cavity 18 and aerates the inside of the filter box 10, so that the flocculant and the wastewater are fully mixed, the precipitation speed of the substances in the wastewater is accelerated, and the mixing efficiency is improved. The waterproof vent valve 20 prevents the wastewater from flowing into the circular cavity 18.

Example 4

As shown in FIG8 , in this embodiment, the connection relationship between the liquid storage tank 12 and the first stirring rod 6 is concretized to achieve the effect of accelerating the sedimentation speed of the suspended matter in the wastewater. A water pump 23 is installed at the upper end of the liquid storage tank 12 through a pipeline, and a liquid storage box 24 is rotatably installed on the outer side of the first stirring rod 6. One end of the liquid storage box 24 is fixedly connected to the base 1, and the water pump 23 is connected to the liquid storage box 24 through a pipeline. A liquid storage cavity 25 is opened inside the first stirring rod 6, and the liquid storage box 24 is connected to the liquid storage cavity 25. Liquid outlet holes 26 are provided in a linear array on the outside of the stirring rod 6, one end of the liquid outlet hole 26 is connected to the liquid storage chamber 25, and a one-way valve 27 is fixedly installed inside the liquid outlet hole 26. When in use, the water pump 23 is first started to transport the flocculant in the liquid storage box 24 to the liquid storage box 24 through a pipeline, and then flow into the liquid storage chamber 25 through the inflow hole, and then evenly discharged through the liquid outlet hole 26, so that the flocculant and wastewater are evenly mixed and the sedimentation speed is accelerated. The one-way valve 27 prevents the wastewater from flowing into the liquid storage chamber 25.

Example 5

As shown in Figures 10 and 11, the present embodiment concretizes the adsorption component 3 and the driving member to achieve the effect of cleaning the sedimentation tank 14 while adsorbing chlorophenol substances. The adsorption component 3 includes a rotating shaft 301, which is rotatably mounted inside the adsorption box 16. An activated carbon plate 302 is installed in a circular array on the outside of the rotating shaft 301. A second motor 303 is fixedly mounted on one side of the adsorption box 16, and the output end of the second motor 303 is fixedly connected to the rotating shaft 301. The driving member includes a screw 28 and a round rod 29. Square grooves are provided at the lower ends of the inner walls on both sides of the sedimentation box 13. The screw 28 is rotatably mounted in the square groove, and the round rod 29 is fixedly mounted in the square groove. The screw 28 is threadedly connected to one end of the scraper 15, and the other end of the scraper 15 is sleeved on the outside of the round rod 29. A worm wheel 30 is fixedly mounted on one end of the screw 28. A worm 31 is rotatably mounted on the upper end of the base 1, and the worm 31 is meshed with the worm wheel 30. The worm 31 and one end of the rotating shaft 301 are both opened A cross-shaped groove is provided, in which a cross-shaped rod 32 is inserted, a baffle plate 33 is inserted at one end of the sedimentation box 13, a discharge hole 34 is opened at the lower end of the sedimentation box 13, one end of the baffle plate 33 extends into the discharge hole 34, and a collection box 35 for storing sediment is provided on the upper surface of the base 1 at the lower side of the sedimentation box 13. When in use, the second motor 303 is started first to drive the rotating shaft 301 to rotate, and the activated carbon plate 302 rotates accordingly to repeatedly adsorb chlorophenol substances in the wastewater, thereby improving the adsorption effect. When it is necessary to clean the sedimentation tank 14, the cross-shaped rod 32 is manually moved in the cross-shaped groove to drive the worm 31 to rotate, and the worm wheel 30 rotates accordingly to make the screw 28 circumferential, drive the scraper 15 to move in the sedimentation tank 14, and clean the sediment in the sedimentation tank 14. The precipitated material passes through the discharge hole 34 and moves to the collection box 35 for storage. At this time, one end of the scraper plate 15 moves outside the round rod 29, and the round rod 29 plays a limiting role.

The method for detecting chlorophenols in wastewater comprises the following steps: S1. pre-treating the wastewater by a pre-treatment device; S2. taking the above-treated wastewater into a detection test tube, and then fixing the detection test tube for detection; S3. first observing whether there are suspended matter in the wastewater by naked eyes, and then pouring the wastewater to be detected into another test tube provided with a filter net, and observing whether there are particulate impurities attached to the filter net; S4. then enriching the chlorophenols in the wastewater to be detected by a solid phase extraction method; S5. finally detecting the content of chlorophenols in the wastewater by a GC-ECD gas chromatography detector.

The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a chlorophenol class pretreatment device in waste water, includes base (1), filter unit (2), adsorption unit (3), square plate (4) that the round hole was seted up to one end, aeration puddler (7) that set up through first motor (5) driven first puddler (6) and symmetry, its characterized in that: the utility model discloses a filter device, including base (1), filter component, air storage cavity (11) has been seted up to base (1), mounting bracket (8) is installed to base (1) upper end one side, mounting bracket (8) one end fixed mounting has one end to be provided with rose box (10) of feed liquor fill (9), filter component (2) are installed inside upper end of rose box (10), square board (4) fixed mounting is in inside rose box (10), air storage cavity (11) have been seted up inside square board (4), air storage cavity (11) with filter component (2) are linked together, first puddler (6) with aeration puddler (7) all rotate to be installed rose box (10) lower extreme, square board (4) with aeration puddler (7) are rotated and are connected, the first stirring rod (6) is linked with the aeration stirring rod (7) through a gear set, a liquid storage tank (12) for storing flocculating agent is fixedly arranged at the upper end of the base (1), the liquid storage tank (12) is communicated with the interior of the first stirring rod (6), a sedimentation tank (13) is fixedly arranged at the middle position of the upper end of the base (1), a sedimentation tank (14) is arranged at the lower end of the interior of the sedimentation tank (13) in a linear array, a movable scraping plate (15) is arranged on the inner wall of the sedimentation tank (13) through a driving piece, the adsorption component (3) is linked with the driving piece, the sedimentation tank (13) is communicated with the filter tank (10) through a pipeline, an adsorption tank (16) is fixedly arranged on one side of the upper end of the base (1), the adsorption assembly (3) is arranged in the adsorption tank (16), the adsorption tank (16) is communicated with the sedimentation tank (13) through a pipeline, and one end of the pipeline is provided with a valve.

2. The pretreatment apparatus for chlorophenols in wastewater according to claim 1, wherein: the filter assembly (2) comprises an electric roller (201), the electric roller (201) is installed on the inner wall of the filter box (10) in a left-right distribution rotation mode, an annular filter screen (202) is attached to the outer side of the electric roller (201), a limit rod (203) is installed in the filter box (10) in a rotation mode, and one end of the limit rod (203) is in contact with the annular filter screen (202).

3. The pretreatment apparatus for chlorophenols in wastewater according to claim 2, wherein: the utility model discloses a filter cabinet, including rose box (10), mounting groove (204) have been seted up to rose box (10) inner wall, guide bar (205) that inside fixed mounting of mounting groove (204) was about being distributed, U-shaped board (207) that square cavity (206) were seted up to rose box (10) one end inside grafting has one end, U-shaped board (207) one end cup joints the guide bar (205) outside.

4. A chlorophenol pretreatment apparatus in waste water according to claim 3, wherein: cleaning brush (208) are installed to U-shaped board (207) outside symmetry, cleaning brush (208) one end with circular filter screen (202) are contacted, U-shaped board (207) one end is linear array and installs defeated tuber pipe (209), defeated tuber pipe (209) one end with square cavity (206) are linked together, rose box (10) internally mounted has breather pipe (210), breather pipe (210) one end runs through guide bar (205) with square cavity (206) are linked together, breather pipe (210) other end with gas storage chamber (11) are linked together, collection box (211) are pegged graft to rose box (10) one side, rose box (10) one end fixed mounting has the mounting panel, peg (212) are pegged graft to mounting panel one end, peg (212) one end extends to in U-shaped board (207).

5. The pretreatment apparatus for chlorophenols in wastewater according to claim 1, wherein: the filter tank (10) one side fixed mounting has air pump (17), air pump (17) output pass through the pipeline with gas storage chamber (11) are linked together, circular cavity (18) have been seted up to aeration puddler (7) inside, circular cavity (18) with gas storage chamber (11) are linked together, aeration puddler (7) outside is linear array and has seted up venthole (19), venthole (19) with circular cavity (18) are linked together, venthole (19) internally fixed mounting has waterproof breather valve (20).

6. The pretreatment apparatus for chlorophenols in wastewater according to claim 1, wherein: the outer side of one end of the first stirring rod (6) is fixedly provided with a first gear (21), one end of the aeration stirring rod (7) is fixedly provided with a second gear (22), and the first gear (21) is meshed with the second gear (22).

7. The pretreatment apparatus for chlorophenols in wastewater according to claim 1, wherein: the liquid storage device comprises a liquid storage box (12), a liquid storage box (24) is rotatably arranged on the outer side of a first stirring rod (6) through a pipeline, the liquid storage box (24) is fixedly connected with a base (1), the water pump (23) is communicated with the liquid storage box (24) through a pipeline, a liquid storage cavity (25) is formed in the first stirring rod (6), the liquid storage box (24) is communicated with the liquid storage cavity (25), a liquid outlet hole (26) is formed in the outer side of the first stirring rod (6) in a linear array mode, one end of the liquid outlet hole (26) is communicated with the liquid storage cavity (25), and a one-way valve (27) is fixedly arranged in the liquid outlet hole (26).

8. The pretreatment apparatus for chlorophenols in wastewater according to claim 1, wherein: the adsorption assembly (3) comprises a rotating shaft (301), the rotating shaft (301) is rotatably arranged inside the adsorption box (16), an activated carbon plate (302) is arranged on the outer side of the rotating shaft (301) in a circumferential array, a second motor (303) is fixedly arranged on one side of the adsorption box (16), and the output end of the second motor (303) is fixedly connected with the rotating shaft (301).

9. The apparatus for pretreatment of chlorophenols in wastewater according to claim 8, wherein: the utility model provides a sedimentation tank, including driving piece, including lead screw (28) and round bar (29), square groove has been seted up to sedimentation tank (13) both sides inner wall lower extreme, lead screw (28) rotate and install square inslot, round bar (29) fixed mounting is in square inslot, lead screw (28) with scraper blade (15) one end looks threaded connection, scraper blade (15) other end cup joints round bar (29) outside, lead screw (28) one end fixed mounting has worm wheel (30), worm (31) are installed in rotation of base (1) upper end, worm (31) with worm wheel (30) are meshed, worm (31) with cross groove has all been seted up to axis of rotation (301) one end, cross inslot grafting has cross pole (32), sedimentation tank (13) one end grafting has baffle (33), discharge hole (34) have been seted up to sedimentation tank (13) lower extreme, baffle (33) one end extend to in discharge hole (34), sedimentation tank (13) downside is located base (1) is provided with and is used for depositing sediment (35) on the surface.

10. A method for detecting chlorophenols in wastewater, which is realized based on the pretreatment equipment for chlorophenols in wastewater according to any one of claims 1 to 9, and is characterized by comprising the following steps:

S1, carrying out pretreatment on wastewater by pretreatment equipment;

S2, taking the treated wastewater in a detection test tube, and fixing the detection test tube for detection;

s3, firstly observing whether suspended matters exist in the wastewater by naked eyes, then pouring the wastewater to be detected into another test tube provided with a filter screen, and observing whether particle impurities are attached to the filter screen;

S4, enrichment treatment is carried out on chlorophenols in the wastewater to be detected by a solid-phase extraction method;

s5, finally detecting the content of chlorophenols in the wastewater by a GC-ECD gas chromatography detector.