Hawthorn medicine wastewater treatment device and comprehensive treatment method thereof

Abstract

The invention discloses a hawthorn medicine wastewater treatment device and a comprehensive treatment method thereof, and relates to the technical field of wastewater treatment.The hawthorn medicine wastewater treatment device comprises a wastewater treatment pond, and a flocculation impact mechanism is arranged at the top of the wastewater treatment pond; by arranging a flocculation impact mechanism and adopting an inclined and inclined lower columnar high-pressure spraying mode, when a large amount of flocculating agent is flushed into wastewater in a wastewater treatment tank, the wastewater is fully scattered and rapidly flows by utilizing high pressure, and meanwhile, the wastewater is rapidly diffused in a mode of flushing away from the center of the wastewater treatment tank to the periphery of the wastewater treatment tank; the waste water diffused to the periphery of the waste water treatment tank is turned over to the upper layer and flows back to the center of the waste water treatment tank through the upper layer, so that a flocculating agent is automatically sprayed, the mixing effect in the waste water treatment tank is completed, and the function of turning over and circulating is achieved through spraying in the inclined lower direction; the problem that part of wastewater dirt deposited at the bottom cannot be in full contact with the flocculating agent is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a hawthorn medicinal wastewater treatment device and a comprehensive treatment method thereof. Background Art

[0002] Wastewater treatment is a technology that uses physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, and achieve wastewater recovery and reuse to fully utilize water resources. Commonly used agents for wastewater treatment include flocculants, coagulants, conditioners, etc. Treatment technologies include pretreatment, new fillers, ceramic membranes, etc. A wastewater treatment device described in a patent application with publication number CN207671802U includes: a sedimentation tank, a pH adjustment tank, a filter tank, an oxidation tank and a disinfection tank, wherein the sedimentation tank, the pH adjustment tank, the filter tank, the oxidation tank and the disinfection tank are connected in sequence through pipelines, and the filter tank includes a first filter chamber and a second filter chamber, and a vibrating filter screen is provided between the first filter chamber and the second filter chamber.

[0003] At present, when hawthorn pharmaceutical wastewater is treated, due to the presence of a large number of impurities such as suspended matter, colloids and dissolved matter in the water, when the water flocculant is added to the wastewater, it is easy for the flocculant to fail to combine with the wastewater far away from it, resulting in the problem of limited flocculation sedimentation treatment efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a hawthorn pharmaceutical wastewater treatment device and a comprehensive treatment method thereof, thereby achieving the purpose of solving the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hawthorn pharmaceutical wastewater treatment device, comprising a wastewater treatment tank, wherein a flocculation impact mechanism is provided on the top of the wastewater treatment tank; The flocculation impact mechanism comprises: The connecting rod is a columnar structure, the bottom of the connecting rod is fixedly connected to the top of the wastewater treatment tank, the top of the connecting rod is fixedly connected to a connecting frame, one side of the connecting frame is fixedly connected to a liquid inlet, and the connecting rod is used to support the connecting frame; A fixed rod, the bottom of which is fixedly connected to the bottom of the inner wall of the wastewater treatment tank, the outer wall of the fixed rod is provided with a lifting sleeve, the lifting sleeve is a circular sleeve structure, the bottom of the lifting sleeve is fixedly connected to a floating plate, the outer wall of the lifting sleeve is fixedly connected to an inclined plate, the bottom of the inclined plate is fixedly connected to a water spray seat, and a water spray hole is opened below the water spray seat.

[0006] Preferably, a connecting block is fixedly connected to the top of the lifting sleeve, and a rotating block is fixedly connected to the top of the connecting block.

[0007] Preferably, the outer wall of the rotating block is provided with a grooved reflective surface, and the grooved reflective surface is made of a glossy material.

[0008] Preferably, a water pipe is fixedly connected to the outer wall of the lifting sleeve, one end of the water pipe is fixedly connected to the bottom of the connecting frame, the interior of the liquid inlet is connected to the interior of the connecting frame, the interior of the connecting frame is connected to the interior of the lifting sleeve through the water pipe, and the interior of the lifting sleeve is connected to the interior of the water spray seat through the inclined plate.

[0009] Preferably, an auxiliary mechanism is provided under the inclined plate, and the auxiliary mechanism includes a hinge block, one end of the hinge block is fixedly connected to the outer wall of the inclined plate, a rotating rod is sleeved on the inner wall of the hinge block, the outer wall of the rotating rod is fixedly connected to the inner wall of the hinge block by a torsion spring, the outer wall of the rotating rod is fixedly connected to an opening and closing plate, and the outer wall of the opening and closing plate is provided with an oblique groove.

[0010] Preferably, an arc-shaped groove is provided on the inner wall of the inclined groove, and a pad is fixedly connected to the outer wall of the opening and closing plate. The pad is used to play a buffering role when the opening and closing plate rotates and collides with the floating plate. A liquid level sensor is fixedly connected to the lower part of the outer wall of the fixed rod, and an electric motor is fixedly connected to the bottom of the inclined plate. A telescopic sleeve is arranged inside the motor, and a central processing unit is fixedly connected to the top of the lifting sleeve.

[0011] Preferably, the liquid level sensor is electrically connected to a central processing unit, the central processing unit is electrically connected to a motor, and the motor is used to drive the telescopic sleeve to extend and retract.

[0012] A comprehensive treatment method for hawthorn medicinal wastewater comprises the following steps: In the first step, hawthorn pharmaceutical wastewater is stored in a dedicated wastewater storage tank; In the second step, the pH value of the hawthorn wastewater is adjusted to 6-8, and then it enters the flocculation and sedimentation device, into which a composite flocculant is added for flocculation and sedimentation treatment.

[0013] In the third step, the wastewater obtained in the second step is put into a filtration device for treatment, and the obtained clarified solution is further put into a Fenton-like device, wherein the catalyst in the Fenton-like device is an independently developed iron-carbon catalyst, and the volume ratio of the catalyst to the wastewater is 1:1~1:6. The residence time of the wastewater in the device is between 60 min and 480 min, and the pH in the device is always controlled between 2 and 4. Air is blown in to make it react evenly. The concentration of hydrogen peroxide during the reaction process is 600~36000 mg / L, and the COD value of the effluent water solution of the Fenton-like reaction device is 2000-6000 mg / L, and the degradation rate ranges from 60% to 80%; The fourth step is to put the water obtained in the third step into 2, and add a flocculant therein for flocculation and sedimentation treatment; In the fifth step, the water obtained in the fourth step enters the membrane separation device, and after treatment, the permeate and the retentate are obtained respectively, and the retentate enters the next step of treatment; In the sixth step, the retentate enters the acid hydrolysis device, and the resulting water is returned to the Fenton-like device in the third step for a cyclic treatment.

[0014] The present invention provides a hawthorn medicinal wastewater treatment device and a comprehensive treatment method thereof, which has the following beneficial effects: 1. The present invention provides a flocculation impact mechanism and a columnar high-pressure spraying method that is inclined and obliquely downward, so that a large amount of flocculants can be flushed into the wastewater in the wastewater treatment pool, and the wastewater will be fully dispersed and flowed quickly by high pressure. At the same time, it will also be rapidly diffused from the center of the wastewater treatment pool to the periphery. The wastewater diffused to the periphery of the wastewater treatment pool will turn over to the upper layer and flow back to the center of the wastewater treatment pool through the upper layer, thereby spraying the flocculant by itself and completing the mixing effect inside the wastewater treatment pool at the same time. By spraying in an oblique downward direction, the effect of layer turning circulation is realized, which effectively prevents the problem that some wastewater dirt deposited at the bottom cannot fully contact with the flocculant.

[0015] 2. The present invention provides a flocculation impact mechanism, which will cause a reaction force on the inclined plate, so that the inclined plate is pushed backward, and the lifting sleeve connected to the inclined plate slides freely with the outer wall of the fixed rod, so that while spraying and stirring, uniform rotation can be achieved. By utilizing the rotation, the water spray seats and water spray holes under several inclined plates can be evenly sprayed 360 degrees into all the wastewater in the wastewater treatment pool, and adapt to the circular wastewater treatment pool. At the same time, stirring is completed during spraying, and there is no need to set up a stirring mechanism separately, and there is no need to waste stirring time. This method improves the mixing efficiency and work efficiency.

[0016] 3. The present invention sets a flocculation impact mechanism. When the lifting sleeve drives the connecting block and the rotating block to rotate synchronously, the flow rate of the injection can be judged by the rotation frequency of the rotating block. Different water pressures are adjusted by an external water pump, and the rotation speed is used to quickly identify and judge, and corresponding measures are taken to increase and decrease the water pressure, so that the water pressure adjustment can be more suitable for the spraying and stirring intensity of the flocculant mixture of wastewater with different viscosities.

[0017] 4. The present invention sets a flocculation impact mechanism. Because the lifting sleeve is placed on the floating plate, the hollow inside the floating plate allows it to float synchronously with the rise of the liquid level, keeping the inclined plate and the water spray hole outside the lifting sleeve always above the liquid surface, and the water spray hole is always close to the liquid surface, so that the water spray hole can maintain a certain high-pressure spraying impact force with the liquid surface at different heights.

[0018] 5. The present invention sets an auxiliary mechanism, so that when the amount of wastewater is large and the water pump power is not adjusted, the three water spray holes can be automatically covered to different degrees to ensure that the wastewater is fully flushed into the bottom of the wastewater in the wastewater treatment tank at a higher flow rate to ensure the stirring and circulating flow of the wastewater. When the amount of wastewater is small, the telescopic sleeve will not cover the water spray holes, and the flow rate of the mixed liquid sprayed evenly from the three water spray holes is normal, which is enough to cope with the wastewater at a shallow depth and maintain the flow rate to ensure work efficiency, while also avoiding the splashing problem in shallow water caused by high-pressure injection.

[0019] 6. The present invention sets an auxiliary mechanism. When the wastewater is deeper and the liquid level is higher, the spraying pressure of the water spray hole increases, thereby exerting a greater impact force on the arc groove, overcoming the torsion spring between the hinge block and the rotating rod, causing the opening and closing plate to rotate downward by the impact, and the arc groove no longer guides it, so that the spraying direction of the water spray hole reduces the angle as much as possible and sprays toward the deep part of the wastewater, ensuring that when more wastewater is sprayed with flocculants, it can fully enter the deep wastewater and fully combine with the wastewater, and utilizes different changes in angles and automatic adjustment of the spraying intensity to achieve adaptive response to different amounts of wastewater flocculation treatment work, and then under normal conditions, there is no need for manual corresponding adjustment, and the purpose of spraying the flocculant and fully stirring and combining with the wastewater can be maximized, thereby improving the wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 The structure of the flocculation impact mechanism of the present invention is shown in FIG. Figure 1 ; Figure 3 The structure of the flocculation impact mechanism of the present invention is shown in FIG. Figure 2 ; Figure 4 The structure of the flocculation impact mechanism of the present invention is shown in FIG. Figure 3 ; Figure 5 It is a schematic diagram of the disassembled structure of the flocculation impact mechanism of the present invention; Figure 6 The structure of the flocculation impact mechanism of the present invention is shown in FIG. Figure 4 ; Figure 7 It is a schematic diagram of the bottom structure of the lifting sleeve of the present invention; Figure 8 For the present invention Figure 7 A magnified image of point A; Fig. 9 It is the motion state diagram of the flocculation impact mechanism of the present invention; Fig.10 The structure diagram of the auxiliary mechanism of the present invention is shown in FIG. Figure 1 ; Fig.11 For the present invention Figure 6 A magnified view of point B; Fig.12 The structure diagram of the auxiliary mechanism of the present invention is shown in FIG. Figure 2 ; Fig.13 It is a structural schematic diagram of the opening and closing plate of the present invention; Fig.14 It is the motion state diagram of the auxiliary mechanism of the present invention.

[0021] In the figure: 2 wastewater treatment tank, 3 flocculation impact mechanism, 301 connecting rod, 302 connecting frame, 303 liquid inlet, 304 fixed rod, 305 rotating block, 306 groove reflective surface, 307 connecting block, 309 lifting sleeve, 310 floating plate, 311 inclined plate, 312 water pipe, 313 water spray seat, 314 water spray hole, 315 water pipe, 4 auxiliary mechanism, 401 hinge block, 402 rotating rod, 403 opening and closing plate, 404 inclined groove, 405 arc groove, 406 pad, 407 liquid level sensor, 408 motor, 409 telescopic sleeve, 410 central processing unit. DETAILED DESCRIPTION

[0022] Example 1: Please refer to Figure 1-4 , the present invention provides a technical solution: a hawthorn medicine wastewater treatment device, comprising a wastewater treatment pool 2, a flocculation impact mechanism 3 is arranged on the top of the wastewater treatment pool 2; The flocculation impact mechanism 3 comprises: The connecting rod 301 is a columnar structure. The bottom of the connecting rod 301 is fixedly connected to the top of the wastewater treatment tank 2. The top of the connecting rod 301 is fixedly connected to a connecting frame 302. One side of the connecting frame 302 is fixedly connected to a liquid inlet 303. The connecting rod 301 is used to support the connecting frame 302. A fixed rod 304 is fixedly connected to the bottom of the inner wall of the wastewater treatment tank 2. A lifting sleeve 309 is sleeved on the outer wall of the fixed rod 304. The lifting sleeve 309 is a circular sleeve structure. A floating plate 310 is fixedly connected to the bottom of the lifting sleeve 309. An inclined plate 311 is fixedly connected to the outer wall of the lifting sleeve 309. A water spray seat 313 is fixedly connected to the bottom of the inclined plate 311. A water spray hole 314 is opened below the water spray seat 313.

[0023] When in use, the hawthorn medicine wastewater is put into the wastewater treatment pool 2, and then a flocculant is added into the wastewater treatment pool 2, so that the impurity particles in the wastewater are aggregated into larger flocs by the flocculant, and then solid-liquid separation is performed through a sedimentation tank or a filtration device. The flocs in the sedimentation tank will gradually settle to the bottom of the pool to form sludge; Example 2: Please refer to Figure 1-9On the basis of the first embodiment, the present invention provides a technical solution: the top of the lifting sleeve 309 is fixedly connected with a connecting block 307 , and the top of the connecting block 307 is fixedly connected with a rotating block 305 .

[0024] The outer wall of the rotating block 305 is provided with a grooved reflective surface 306 , and the grooved reflective surface 306 is made of a smooth material.

[0025] The outer wall of the lifting sleeve 309 is fixedly connected with a water pipe 315, one end of the water pipe 315 is fixedly connected to the bottom of the connecting frame 302, the interior of the liquid inlet 303 is connected with the interior of the connecting frame 302, the interior of the connecting frame 302 is connected with the interior of the lifting sleeve 309 through the water pipe 315, and the interior of the lifting sleeve 309 is connected with the interior of the water spray seat 313 through the inclined plate 311.

[0026] The flocculant is mixed with a certain amount of water, and the mixed liquid formed by the flocculant and water is pressed into the liquid inlet 303 through the pipeline by an external water pump, and enters the connecting frame 302, enters the fixed rod 304 below through the connecting frame 302, and then enters the lifting sleeve 309 from the water pipe 315. Through the connection between the lifting sleeve 309 and the inclined plate 311 and the water pipe 312, it enters the water spray seat 313 below the inclined plate 311, and then sprays out through the water spray hole 314, completing the connection and spraying process from the outside of the wastewater treatment tank 2 to the water spray hole 314; When the mixed liquid of flocculant and water is sprayed out through the water spray hole 314, it is a high-pressure spray, so that the flocculant will quickly rush into the wastewater treatment tank 2, and because the inclined plate 311 is inclined, the spraying direction of the sprayed mixed liquid is not vertically downward, but inclined to the side, so that a large amount of flocculant will be fully dispersed when it is rushed into the wastewater in the wastewater treatment tank 2. While using high pressure to make it flow quickly, it will also show a rapid diffusion from the center of the wastewater treatment tank 2 to the periphery, and the wastewater diffused to the periphery of the wastewater treatment tank 2 will turn over to the upper layer, and flow back to the center of the wastewater treatment tank 2 through the upper layer, so as to form a spray flocculant by itself and complete the mixing effect inside the wastewater treatment tank 2 at the same time, and through the oblique downward spraying, the effect of layer turning circulation is realized, which effectively prevents the problem that some wastewater dirt deposited at the bottom cannot fully contact with the flocculant. When the flocculant liquid is sprayed out through the water spray hole 314, because the inclined plate 311 is inclined, the water spray seat 313 will cause a reaction force on the inclined plate 311 during high-pressure spraying, so that the inclined plate 311 is pushed backward, and the lifting sleeve 309 connected to the inclined plate 311 is free to slide with the outer wall of the fixed rod 304, so that while spraying and stirring, uniform rotation can be achieved. By using the rotation, the water spray seats 313 and water spray holes 314 under the inclined plates 311 can be evenly sprayed 360 degrees into all the wastewater in the wastewater treatment tank 2, and adapt to the circular wastewater treatment tank 2, and at the same time, the stirring is completed during the spraying, without the need to set up a stirring mechanism separately, and without wasting stirring time separately. This method improves the mixing efficiency and work efficiency. When the lifting sleeve 309 rotates, it drives the connection block 307 and the rotating block 305 made of a relatively light foam material above, and the groove reflective surface 306 on the outer wall of the rotating block 305 that fits with it reflects the light. Therefore, when the lifting sleeve 309 drives the connection block 307 and the rotating block 305 to rotate synchronously, the flow rate of the injection at this time can be judged by the rotation frequency of the rotating block 305, and different water pressures can be adjusted by an external water pump, and the rotation speed can be quickly identified and judged, and corresponding measures to increase and decrease the water pressure can be taken, so that the water pressure adjustment can be more suitable for the spraying and stirring intensity of the flocculant mixture of wastewater with different viscosities; Example 3: Please refer to Figure 1-14 On the basis of the first and second embodiments, the present invention provides a technical solution: an auxiliary mechanism 4 is arranged below the inclined plate 311, and the auxiliary mechanism 4 includes a hinge block 401, one end of the hinge block 401 is fixedly connected to the outer wall of the inclined plate 311, a rotating rod 402 is sleeved on the inner wall of the hinge block 401, and the outer wall of the rotating rod 402 is fixedly connected to the inner wall of the hinge block 401 through a torsion spring, and an opening and closing plate 403 is fixedly connected to the outer wall of the rotating rod 402, and an inclined groove 404 is provided on the outer wall of the opening and closing plate 403.

[0027] An arc groove 405 is provided on the inner wall of the inclined groove 404, and a pad 406 is fixedly connected to the outer wall of the opening and closing plate 403. The pad 406 is used to play a buffering role when the opening and closing plate 403 rotates and collides with the floating plate 310. A liquid level sensor 407 is fixedly connected to the lower part of the outer wall of the fixed rod 304, and a motor 408 is fixedly connected to the bottom of the inclined plate 311. A telescopic sleeve 409 is arranged inside the motor 408, and a central processing unit 410 is fixedly connected to the top of the lifting sleeve 309.

[0028] The liquid level sensor 407 is electrically connected to the central processing unit 410 , and the central processing unit 410 is electrically connected to the motor 408 . The motor 408 is used to drive the telescopic sleeve 409 to extend and retract.

[0029] A comprehensive treatment method for hawthorn medicinal wastewater comprises the following steps: In the first step, hawthorn pharmaceutical wastewater is stored in a dedicated wastewater storage tank, where the turbidity value of the wastewater is 500-1000 NTU, and the organic matter in the solution, expressed as COD, is 10000-16000 mg / L; In the second step, after the pH value of the hawthorn wastewater is adjusted to 6-8, it enters the flocculation and sedimentation device, and 10-600 mg / L of a composite flocculant (selected from two or more of polyaluminium chloride, polyaluminium sulfate, polyferric chloride, polyferric sulfate, polyaluminium ferric chloride, and polyacrylamide) is added thereto. After flocculation and sedimentation treatment, the turbidity of the supernatant is less than 5 NTU, and the COD value of the obtained water body is 6000-12000 mg / L; In the third step, the wastewater obtained in the second step is put into a filtration device for treatment, and the obtained clarified solution is further put into a Fenton-like device (equipped with an air blowing device), wherein the catalyst in the Fenton-like device is an independently developed iron-carbon catalyst, and the volume ratio of the catalyst to the wastewater is 1:1~1:6. The residence time of the wastewater in the device is between 60 min-480 min, and the pH in the device is always controlled between 2~4. Air is blown in to make it react evenly. The concentration of hydrogen peroxide during the reaction process is 600~36000 mg / L, and the COD value of the effluent water of the Fenton-like reaction device is 2000-6000 mg / L, and the degradation rate ranges from 60% to 80%; The fourth step is to subject the effluent obtained in the third step to flocculation and sedimentation treatment, wherein one of sodium hydroxide, calcium hydroxide, ammonia water or potassium hydroxide is used to adjust the pH of the solution to 7-9, and 10-600 mg / L of a composite flocculant (selected from two or more of polyaluminium chloride, polyaluminium sulfate, polyferric chloride, polyferric sulfate, polyaluminium ferric chloride and polyacrylamide) is added thereto, and the turbidity of the supernatant after sedimentation is less than 5 NTU, and the COD value of the effluent water solution is 1200-5000 mg / L; In the fifth step, the water obtained in the fourth step enters the membrane separation device, where the membrane used is an organic composite spiral membrane, the membrane core pore size is 10~500 dal, the equipment pressure is 2~6 MPa, the operating temperature is 5~45℃, and the inlet pH value is 3~12. After treatment, permeate and retentate can be obtained respectively. The COD value of the permeate (product water) is 10~120 mg / L, which can be reused in the workshop. The COD value of the retentate (concentrated water) is 10000-30000 mg / L, and the retentate enters the next step of treatment; In the sixth step, the retentate enters the acid hydrolysis device, where the pH value of the solution is adjusted to 0.5-2, the temperature is controlled at 30-180°C, and the hydrolysis time is controlled at 60 min-240 min. The COD value of the effluent after acid hydrolysis is 6000-12000 mg / L. The effluent is returned to the Fenton-like device in the third step for recycling.

[0030] When different amounts of wastewater are filled in the wastewater treatment pool 2, the liquid level height in the wastewater treatment pool 2 is different. The more wastewater there is in the wastewater treatment pool 2, the higher the liquid level. Then the liquid level sensor 407 on the outer wall of the fixed rod 304 detects the water pressure in the wastewater treatment pool 2 to determine the height of the wastewater liquid level in the wastewater treatment pool 2 at this time, and transmits it to the central processor 410. The central processor 410 sends an instruction to the motor 408, so that the motor 408 drives the telescopic sleeve 409 to telescope and lengthen. Because the lifting sleeve 309 is placed on the floating plate 310, the hollow inside the floating plate 310 allows it to float synchronously with the rise of the liquid level, so that the inclined plate 311 and the water spray hole 314 outside the lifting sleeve 309 are always kept above the liquid level, and the water spray hole 314 is always close to the liquid surface, so that the water spray hole 314 can maintain a certain high-pressure spraying impact force with the liquid surface at different heights; As the amount of wastewater increases and the liquid level rises, the central processor 410 drives the motor 408 to extend the telescopic sleeve 409 according to the increasingly high liquid level information. The higher the liquid level, the greater the extension distance of the telescopic sleeve 409, and the more water spray holes 314 below the water spray seat 313 are covered. Once the water spray holes 314 at the water outlet position are blocked, the flow rate of the remaining one or two water spray holes 314 will increase, and the impact force on the water below will be greater, so that when the amount of wastewater is large, the water spray can be automatically adjusted without adjusting the water pump power. The three water spray holes 314 on the seat 313 are covered to different degrees to ensure that at a high flow rate, they can fully flush into the bottom of the wastewater in the wastewater treatment tank 2 to ensure the stirring and circulation of the wastewater. When the amount of wastewater is small, the liquid level is low, and the telescopic sleeve 409 will not cover the water spray holes 314. Then the flow rate of the mixed liquid sprayed evenly by the three water spray holes 314 remains normal, which is enough to cope with the wastewater at a shallow depth and maintain a certain flow rate to ensure work efficiency, while also avoiding the splashing problem in shallow water caused by high-pressure injection; The mixed liquid sprayed from the water spray holes 314 first passes through the lower opening and closing plate 403 and then sprayed from the opening and closing plate 403. When the mixed liquid is sprayed, the columnar mixed liquid sprayed from the three water spray holes 314 changes its spraying direction under the guidance of the arc-shaped arc groove 405 in the inclined groove 404. When the amount of wastewater is small and the liquid level is low, the three water spray holes 314 spray at the same time, so the spraying pressure is not large. When sprayed on the arc groove 405, it cannot overcome the torsion spring between the rotating rod 402 and the hinge block 401 to deform it, so it will be sprayed out of the wastewater treatment tank 2 with the guidance of the arc groove 405. When the water level is shallow, the flocculant mixture can be quickly pushed out of the wastewater in the circular wastewater treatment tank 2 through the more outward direction of the arc groove 405. In deeper wastewater, when the liquid level is higher, the spraying pressure of the water spray hole 314 increases, thereby exerting a greater impact force on the arc groove 405, overcoming the torsion spring between the hinge block 401 and the rotating rod 402, causing the opening and closing plate 403 to rotate downward by the impact, and the arc groove 405 no longer guides it, so that the spraying direction of the water spray hole 314 reduces the angle as much as possible and sprays toward the deep part of the wastewater, ensuring that when more wastewater is sprayed with flocculant, it can fully enter the deep wastewater and fully combine with the wastewater, and utilize different changes in angles and automatic adjustment of the spraying intensity to achieve adaptive response to different amounts of wastewater flocculation treatment work, and then under normal conditions, there is no need for manual corresponding adjustment, and the purpose of spraying the flocculant and fully stirring and combining with the wastewater can be maximized, thereby improving the wastewater treatment effect.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hawthorn medicinal wastewater treatment device, comprising a wastewater treatment pool (2), characterized in that: A flocculation impact mechanism (3) is provided on the top of the wastewater treatment tank (2); The flocculation impact mechanism (3) comprises: A connecting rod (301) having a columnar structure, the bottom of the connecting rod (301) being fixedly connected to the top of the wastewater treatment tank (2), the top of the connecting rod (301) being fixedly connected to a connecting frame (302), one side of the connecting frame (302) being fixedly connected to a liquid inlet (303), and the connecting rod (301) being used to support the connecting frame (302); A fixed rod (304), the bottom of the fixed rod (304) being fixedly connected to the bottom of the inner wall of the wastewater treatment tank (2), the outer wall of the fixed rod (304) being provided with a lifting sleeve (309), the lifting sleeve (309) being a circular sleeve-shaped structure, the bottom of the lifting sleeve (309) being fixedly connected to a floating plate (310), the outer wall of the lifting sleeve (309) being fixedly connected to an inclined plate (311), the bottom of the inclined plate (311) being fixedly connected to a water spray seat (313), and a water spray hole (314) being provided below the water spray seat (313).

2. A hawthorn medicinal wastewater treatment device according to claim 1, characterized in that: The top of the lifting sleeve (309) is fixedly connected to a connecting block (307), and the top of the connecting block (307) is fixedly connected to a rotating block (305).

3. A hawthorn medicinal wastewater treatment device according to claim 2, characterized in that: The outer wall of the rotating block (305) is provided with a grooved reflective surface (306), and the grooved reflective surface (306) is made of a smooth material.

4. A hawthorn medicinal wastewater treatment device according to claim 3, characterized in that: The outer wall of the lifting sleeve (309) is fixedly connected to a water pipe (315); one end of the water pipe (315) is fixedly connected to the bottom of the connection frame (302); the interior of the liquid inlet (303) is connected to the interior of the connection frame (302); the interior of the connection frame (302) is connected to the interior of the lifting sleeve (309) through the water pipe (315); and the interior of the lifting sleeve (309) is connected to the interior of the water spray seat (313) through the inclined plate (311).

5. A hawthorn medicinal wastewater treatment device according to claim 4, characterized in that: An auxiliary mechanism (4) is provided below the tilting plate (311), the auxiliary mechanism (4) comprising a hinge block (401), one end of the hinge block (401) being fixedly connected to the outer wall of the tilting plate (311), a rotating rod (402) being sleeved on the inner wall of the hinge block (401), the outer wall of the rotating rod (402) being fixedly connected to the inner wall of the hinge block (401) via a torsion spring, an opening and closing plate (403) being fixedly connected to the outer wall of the rotating rod (402), and an inclined groove (404) being provided on the outer wall of the opening and closing plate (403).

6. A hawthorn medicinal wastewater treatment device according to claim 5, characterized in that: An arc-shaped groove (405) is formed on the inner wall of the inclined groove (404); a pad (406) is fixedly connected to the outer wall of the opening and closing plate (403); the pad (406) is used to buffer when the opening and closing plate (403) rotates and collides with the floating plate (310); a liquid level sensor (407) is fixedly connected to the lower part of the outer wall of the fixed rod (304); a motor (408) is fixedly connected to the bottom of the inclined plate (311); a telescopic sleeve (409) is arranged inside the motor (408); and a central processing unit (410) is fixedly connected to the top of the lifting sleeve (309).

7. A hawthorn medicinal wastewater treatment device according to claim 6, characterized in that: The liquid level sensor (407) is electrically connected to a central processing unit (410), and the central processing unit (410) is electrically connected to a motor (408), and the motor (408) is used to drive the telescopic sleeve (409) to telescope.

8. A comprehensive treatment method for hawthorn medicinal wastewater, based on the hawthorn medicinal wastewater treatment device described in claims 1-7, characterized in that: The following steps are involved: In the first step, hawthorn pharmaceutical wastewater is stored in a dedicated wastewater storage tank; In the second step, after the pH value of the hawthorn wastewater is adjusted to 6-8, it enters the flocculation and sedimentation device, and a composite flocculant is added thereto for flocculation and sedimentation treatment; In the third step, the wastewater obtained in the second step is put into a filtration device for treatment, and the obtained clarified solution is further put into a Fenton-like device, wherein the catalyst in the Fenton-like device is an independently developed iron-carbon catalyst, and the volume ratio of the catalyst to the wastewater is 1:1~1:

6. The residence time of the wastewater in the device is between 60 min and 480 min, and the pH in the device is always controlled between 2 and 4. Air is blown in to make it react evenly. The concentration of hydrogen peroxide during the reaction process is 600~36000 mg / L, and the COD value of the effluent water solution of the Fenton-like reaction device is 2000-6000 mg / L, and the degradation rate ranges from 60% to 80%; The fourth step is to put the water obtained in the third step into 2, and add a flocculant therein for flocculation and sedimentation treatment; In the fifth step, the water obtained in the fourth step enters the membrane separation device, and after treatment, the permeate and the retentate are obtained respectively, and the retentate enters the next step of treatment; In the sixth step, the retentate enters the acid hydrolysis device, and the resulting water is returned to the Fenton-like device in the third step for a cyclic treatment.

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