A functional activated carbon coupling magnetic flocculation precipitation integrated sewage treatment equipment

Abstract

The application discloses a functional active carbon coupling magnetic flocculation and precipitation integrated sewage treatment equipment, which comprises a frame and a treatment pool arranged on the frame, three partitions are used for dividing the treatment pool into a mixing area, a deployment area, an electromagnetic precipitation area and a clean water area which are sequentially communicated, a sediment area is arranged at the bottom of the treatment pool, a first auxiliary plate is vertically arranged in the deployment area, and a first electromagnetic coil is arranged in the first auxiliary plate; a first current controller is arranged on the frame, the first current controller can make the first electromagnetic coil generate a changing magnetic field, a stable magnetic field or a closed magnetic field, when the first electromagnetic coil generates the changing magnetic field, the first auxiliary plate is used as an electromagnetic stirrer, and when the first electromagnetic coil generates the stable magnetic field, the first auxiliary plate is used as an electromagnetic adsorption plate. According to the scheme, the sewage treatment capacity of each part can be adjusted according to different sewage components, so that the sewage treatment efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewage treatment equipment, and in particular to a functional activated carbon coupled magnetic flocculation and sedimentation integrated sewage treatment equipment. BACKGROUND

[0002] The magnetic flocculation and sedimentation technology is to synchronously add magnetic powder in the coagulation and sedimentation process, so that the magnetic powder is combined with the pollutants to form an integrated body to strengthen the coagulation and flocculation effect, so that the generated flocculation body has a larger and more solid density, thereby achieving the purpose of high-speed sedimentation. Compared with the ordinary coagulation and sedimentation process, the magnetic flocculation and sedimentation technology has a better pollutant removal effect, especially for the removal of oil and grease pollutants, total phosphorus and the like in water. In the flocculation reaction stage, in addition to the magnetic powder and flocculants, biomass functional powder activated carbon modified by carbonization can also be added to couple the original magnetic flocculation, so as to further improve the overall removal effect of the overall equipment on water organic matter pollution, nitrogen and phosphorus pollution and the like. The pilot test of the technology has been completed in China in the aspects of urban sewage treatment, water reuse, tap water treatment, river water treatment, high-phosphorus wastewater treatment, papermaking wastewater treatment, oilfield wastewater treatment and the like, and good results have been achieved. The sewage treatment equipment in the prior art includes a mixing zone, a sedimentation zone and a clear water zone, and the sewage treatment capacity of the mixing zone and the sedimentation zone is constant. However, the compositions of different sewage are not the same, and when the compositions of the sewage are different, the sewage treatment capacity requirements of each zone are also different. When one zone reaches the upper limit of the sewage treatment capacity in the sewage treatment process, the remaining sewage treatment capacity of the other zone is wasted. SUMMARY

[0003] In order to overcome the deficiencies in the prior art, the present application provides a functional activated carbon coupled magnetic flocculation and sedimentation integrated sewage treatment equipment, which can adjust the sewage treatment capacity of each part according to the different compositions of the sewage, so as to improve the sewage treatment efficiency and quality.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] The utility model provides a kind of functional activated carbon coupling magnetic flocculation precipitation integrated sewage treatment equipment, including frame and the treatment pool being arranged on frame, three partitions are fixed in vertical interval in the treatment pool, the treatment pool is divided into mixing zone, deployment area, electromagnetic precipitation zone and clear water zone by three partitions in turn communication, the bottom of the treatment pool is equipped with sedimentation area, deployment area, electromagnetic precipitation zone and clear water zone are set in the direct upper of sedimentation area, sedimentation area is equipped with sedimentation inclined plate and is equipped in the sludge collecting tank of sedimentation inclined plate oblique lower end, the sedimentation inclined plate is equipped with foundation electromagnetic coil, the side wall of mixing zone is equipped with inlet pipe, the side wall of clear water zone is equipped with outlet pipe, at least one in the mixing zone and deployment area is equipped with addition port;The first auxiliary plate is vertically arranged in the deployment area, and the first auxiliary plate is equipped with the first electromagnetic coil;First current controller is equipped on the frame, and first current controller is electrically connected with the first electromagnetic coil, and the first current controller can make the first electromagnetic coil generate varying magnetic field or stable magnetic field or close magnetic field, when the first electromagnetic coil generates varying magnetic field, the first auxiliary plate is used as electromagnetic stirrer, when the first electromagnetic coil generates stable magnetic field, the first auxiliary plate is used as electromagnetic adsorption plate.

[0006] In the above technical solution, the deployment area can switch functions as needed. When there are many pollutants in the sewage, the current input into the first electromagnetic coil by the first current controller can be changed to a constant current, thereby causing the first electromagnetic coil to generate a stable magnetic field. The first auxiliary plate can then be used to preliminarily precipitate and adsorb the sewage in the deployment area, and then the sewage can be subjected to secondary precipitation and adsorption in the precipitation zone, thereby improving the speed and quality of sewage treatment. When the pollutants in the sewage are not uniformly mixed with magnetic substances, the current input into the first electromagnetic coil by the first current controller can be changed to a varying current, thereby causing the first electromagnetic coil to generate a varying magnetic field. The varying magnetic field can further coagulate the sewage in the deployment area, so that the pollutants in the sewage can be more thoroughly treated. The above solution increases the adaptability of the treatment equipment and improves the quality of sewage treatment by the treatment equipment. When the first auxiliary plate is used as an electromagnetic adsorption plate, the current in the first electromagnetic coil can be periodically disconnected by the first current controller, thereby closing the magnetic field in the first electromagnetic coil. The sludge adsorbed on the first auxiliary plate can then slide down to the sedimentation inclined plate under the action of gravity and enter the sludge collecting tank. When the content of magnetic substances in the sewage is low, magnetic powder, functional activated carbon, coagulants, flocculants, etc. can be added through the addition port to increase the effect of sewage treatment.

[0007] Preferably, a second auxiliary plate is vertically arranged in the precipitation zone, the second auxiliary plate is equipped with the second electromagnetic coil, a second current controller is equipped on the frame, and the second current controller is electrically connected with the second electromagnetic coil. The second current controller can cause the second electromagnetic coil to generate a stable magnetic field or close the magnetic field.

[0008] In the technical scheme, the second auxiliary plate can extend into the internal space of the sedimentation area to adsorb and precipitate the sewage in the sedimentation area, thereby greatly improving the sedimentation efficiency and the sewage treatment efficiency, and the magnetic field in the second electromagnetic coil can be turned off by the second current controller at regular intervals, so that the sludge adsorbed on the second auxiliary plate slides to the sludge inclined plate and enters the sludge collecting tank.

[0009] Preferably, the three partitions are a first partition arranged between the mixing area and the adjusting area, a second partition arranged between the adjusting area and the sedimentation area, and a third partition arranged between the sedimentation area and the clear water area, the first partition is provided with a plurality of first through holes for connecting the mixing area and the adjusting area, the second partition is provided with a plurality of second through holes for connecting the adjusting area and the sedimentation area, and a sludge sliding gap is arranged between the second partition and the sludge inclined plate; and a water passing gap is arranged between the third partition and the sludge inclined plate.

[0010] In the technical scheme, the sludge precipitated in the adjusting area enters the sludge area through the sludge sliding gap and enters the sludge collecting tank, and the water passing gap allows the clear water in the sedimentation area to enter the clear water area.

[0011] Preferably, the adjusting area is provided with a plurality of first auxiliary plates, and the first auxiliary plates are arranged at intervals along the width direction of the adjusting area; and / or, the sedimentation area is provided with a plurality of second auxiliary plates, and the second auxiliary plates are arranged at intervals.

[0012] The first technical scheme can increase the adsorption and precipitation of the first auxiliary plate, and also ensure the flow of the sewage. The second technical scheme can increase the adsorption and precipitation of the second auxiliary plate, and also ensure the flow of the sewage.

[0013] Preferably, the water outlet pipe is arranged at an upper position of the clear water area.

[0014] Preferably, the water inlet pipe is arranged at a middle position of the mixing area.

[0015] Preferably, the sludge collecting tank is provided with a sludge discharge pipe. The sludge discharge pipe can discharge the sludge accumulated in the sludge collecting tank.

[0016] Preferably, the sludge discharge pipe is connected with a magnetic drum for recycling magnetic powder, and one end of the magnetic drum is communicated with the adding port. The magnetic drum can be used to recycle the magnetic powder in the sludge for secondary use.

[0017] Preferably, the mixing area is provided with a stirrer, one end of the stirrer extends out of the mixing area and is in driving connection with a motor installed on the frame. The stirrer can fully stir the sewage and the magnetic powder in the mixing area to form flocs.

[0018] Preferably, the frame is equipped with a third current controller, which is electrically connected to the base electromagnetic coil. The third current controller can enable the base electromagnetic coil to generate a stable magnetic field or shut off the magnetic field. The third current controller periodically shuts off the magnetic field in the base electromagnetic coil, causing the sludge adsorbed on the settling plate to slide down onto the settling plate and enter the sludge collection tank. Attached Figure Description

[0019] Figure 1 This is a wastewater treatment process flow diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 3 yes Figure 2 A sectional view of section AA in the middle;

[0022] Figure 4 This is a schematic diagram of another wastewater treatment structure in this invention.

[0023] In the diagram: Frame 1, Treatment tank 2, Mixing zone 2.1, Blending zone 2.2, Sedimentation zone 2.3, Clear water zone 2.4, Sludge zone 2.5, Baffle 3, First baffle 3.1, Second baffle 3.2, Third baffle 3.3, First through hole 3.4, Second through hole 3.5, Sludge inclined plate 4, Sludge collection trough 5, Basic electromagnetic coil 6, Inlet pipe 7, Outlet pipe 8, First auxiliary plate 9, First electromagnetic coil 10, Second auxiliary plate 11, Second electromagnetic coil 12, Sludge sliding gap 13, Water passage gap 14, Sludge discharge pipe 15, Addition port 16, Agitator 17, Motor 18. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0025] Example 1:

[0026] like Figure 2 and Figure 3As shown, a functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device includes a frame 1 and a treatment tank 2 mounted on the frame 1. Three vertically spaced partitions 3 are fixed inside the treatment tank 2, dividing it into a mixing zone 2.1, a blending zone 2.2, a sedimentation zone 2.3, and a clear water zone 2.4 that are sequentially connected. A sludge settling zone 2.5 is located at the bottom of the treatment tank 2. The blending zone 2.2, sedimentation zone 2.3, and clear water zone 2.4 are positioned directly above the sludge settling zone 2.5. The sludge settling zone 2.5 contains a sludge settling inclined plate 4 and a sludge collection trough 5 located at the lower end of the sludge settling inclined plate 4. A basic electromagnetic coil 6 is installed inside the sludge settling inclined plate 4. An inlet pipe 7 is located on the side wall of the mixing zone 2.1, and an outlet pipe 8 is located on the side wall of the clear water zone 2.4. The outlet pipe 8 is located at the upper part of the clear water zone 2.4, and the inlet pipe 7 is located at the middle part of the mixing zone 2.1. A first auxiliary plate 9 is vertically fixed within the mixing zone 2.2, and a first electromagnetic coil 10 is installed within the first auxiliary plate 9. A first current controller is installed on the frame 1, and the first current controller is electrically connected to the first electromagnetic coil 10. The first current controller can cause the first electromagnetic coil 10 to generate a changing magnetic field, a stable magnetic field, or to shut off the magnetic field. When the first electromagnetic coil 10 generates a changing magnetic field, the first auxiliary plate 9 functions as an electromagnetic stirrer; when the first electromagnetic coil 10 generates a stable magnetic field, the first auxiliary plate 9 functions as an electromagnetic adsorption plate. Both the mixing zone and the blending zone are equipped with addition ports for adding substances such as magnetic powder, functional activated carbon, coagulants, and flocculants.

[0027] In the above technical solution, the wastewater treatment process is as follows: wastewater enters the mixing zone 2.1 from the inlet pipe 7, is stirred and mixed in the mixing zone 2.1, and then enters the blending zone 2.2. In the blending zone 2.2, the wastewater undergoes further mixing or preliminary adsorption and sedimentation, and then enters the sedimentation zone 2.3 for sedimentation. The treated wastewater finally enters the clear water zone 2.4 and is discharged through the outlet pipe 8 on the clear water zone 2.4. The sludge settled in the blending zone 2.2 and sedimentation zone 2.3 accumulates in the sludge collection tank 5 and is then discharged from the treatment tank 2. The blending zone 2.2 can switch functions as needed. When there are many pollutants in the wastewater, the current input to the first electromagnetic coil 10 by the first current controller can be changed to a constant current, thereby generating a stable magnetic field in the first electromagnetic coil 10. This field, through the first auxiliary plate 9, performs preliminary sedimentation and adsorption on the wastewater in the blending zone 2.2, followed by secondary sedimentation and adsorption in the sedimentation zone 2.3, which can improve the speed and quality of wastewater treatment. When pollutants in wastewater are unevenly mixed with magnetic materials, the current input to the first electromagnetic coil 10 by the first current controller can be transformed into a changing current, thereby generating a changing magnetic field in the first electromagnetic coil 10. This changing magnetic field can further and thoroughly coagulate the wastewater in the mixing zone 2.2, allowing the pollutants in the wastewater to be more thoroughly treated. This solution increases the environmental adaptability of the treatment equipment and improves the wastewater treatment quality. When the first auxiliary plate 9 is used as an electromagnetic adsorption plate, the current in the first electromagnetic coil 10 can be periodically disconnected by the first current controller, thereby shutting off the magnetic field within the first electromagnetic coil 10. This allows the sludge adsorbed on the first auxiliary plate 9 to slide down to the settling inclined plate 4 under gravity and enter the sludge collection tank 5. The first, second, and third current controllers in this application can control the direction and magnitude of the output current and can generate continuously changing currents.

[0028] Specifically, the three partitions 3 are a first partition 3.1 located between the mixing zone 2.1 and the blending zone 2.2, a second partition 3.2 located between the blending zone 2.2 and the sedimentation zone 2.3, and a third partition 3.3 located between the sedimentation zone 2.3 and the clear water zone 2.4. The first partition 3.1 has several first through holes 3.4 for connecting the mixing zone 2.1 and the blending zone 2.2. The second partition 3.2 has several second through holes 3.5 for connecting the blending zone 2.2 and the sedimentation zone 2.3. A mud-sliding gap 13 is provided between the second partition 3.2 and the sludge inclined plate 4. A water-passing gap 14 is provided between the third partition 3.3 and the sludge inclined plate 4. In the above technical solution, the sludge settled in the blending zone 2.2 enters the sedimentation zone 2.5 through the mud-sliding gap 13 and then enters the sludge collection tank 5. The water-passing gap 14 allows the clear water settled in the sedimentation zone 2.3 to enter the clear water zone 2.4.

[0029] Specifically, the sludge collection trough 5 is equipped with a sludge discharge pipe 15. The sludge discharge pipe 15 can discharge the sludge accumulated on the sludge collection trough 5. The sludge discharge pipe 15 is connected to a magnetic drum for recovering magnetic powder, and one end of the magnetic drum is connected to the addition port.

[0030] Specifically, a stirrer 17 is provided in the mixing zone 2.1, one end of which extends out of the mixing zone 2.1 and is coaxially connected to a motor 18 mounted on the frame 1. The stirrer can fully mix the sewage and magnetic powder in the mixing zone 2.1 to form flocculent matter.

[0031] Preferably, a second auxiliary plate 11 is vertically fixed within the sedimentation zone 2.3. A second electromagnetic coil 12 is installed within the second auxiliary plate 11. A second current controller is installed on the frame 1, and the second current controller is electrically connected to the second electromagnetic coil 12. The second current controller can enable the second electromagnetic coil 12 to generate a stable magnetic field or shut off the magnetic field. In the above technical solution, the second auxiliary plate 11 can extend into the internal space of the sedimentation zone 2.3 to adsorb and settle the sewage within the sedimentation zone 2.3. Compared with the solution that can only perform electromagnetic adsorption at the bottom, this can significantly improve the sedimentation efficiency, thereby improving the sewage treatment efficiency. Furthermore, the magnetic field within the second electromagnetic coil 12 can be shut off periodically by the second current controller, causing the sludge adsorbed on the second auxiliary plate 11 to slide down to the sludge settling inclined plate 4 and enter the sludge collection tank 5.

[0032] Preferably, the mixing zone 2.2 is provided with a plurality of first auxiliary plates 9, which are spaced apart along the width direction of the mixing zone 2.2; this technical solution can increase the adsorption and sedimentation effect of the first auxiliary plates 9, while also ensuring the flow of wastewater. The width direction refers to... Figure 2 The X direction in the equation.

[0033] Preferably, the sedimentation zone 2.3 is provided with a plurality of second auxiliary plates 11, which are spaced apart. This technical solution can increase the adsorption and sedimentation effect of the second auxiliary plates 11, while also ensuring the flow of wastewater. Furthermore, multiple second auxiliary plates 11 are provided in both the width and length directions. In the length direction, two consecutive second auxiliary plates 11 are staggered. The length direction refers to... Figure 1 The Y direction is defined in the horizontal plane. The X and Y directions are perpendicular and both lie within the horizontal plane.

[0034] Preferably, the frame 1 is equipped with a third current controller, which is electrically connected to the basic electromagnetic coil 6. The third current controller can enable the basic electromagnetic coil 6 to generate a stable magnetic field or shut off the magnetic field. The third current controller shuts off the magnetic field in the basic electromagnetic coil 6 at regular intervals, causing the sludge adsorbed on the settling plate 4 to slide down to the settling plate 4 and enter the sludge collection tank 5.

[0035] Example 2:

[0036] like Figures 1 to 4 As shown, a wastewater treatment method using functional activated carbon coupled with magnetic flocculation sedimentation is based on the wastewater treatment equipment in Example 1 or... Figure 4 The wastewater treatment equipment shown in the diagram allows wastewater to enter the mixing zone 2.1 through the inlet pipe 7. A sedimentation-aiding agent can be added to the wastewater before it enters the mixing zone 2.1, or the agent, along with sedimentation-aiding magnetic powder and functional activated carbon, can be added simultaneously in both the mixing zone 2.1 and the blending zone 2.2. After mixing in the mixing zone 2.1, the wastewater enters the blending zone 2.2, where it undergoes further mixing or preliminary adsorption and sedimentation. It then enters the sedimentation zone 2.3 for further sedimentation. The treated wastewater finally enters the clear water zone 2.4 and is discharged through the outlet pipe 8. The sludge settled in the blending zone 2.2 and sedimentation zone 2.3 accumulates in the sludge collection tank 5 and is discharged from the treatment tank 2. It then enters the magnetic powder recovery device (magnetic drum) 19 for magnetic powder recovery. The sludge is then passed into the sludge thickening tank 21 for concentration, followed by dewatering. The recovered magnetic powder can be reused by adding it back to the mixing zone 2.1 through the magnetic drum 19. The sludge can be dewatered using a commonly used sludge dewatering machine 20. The wastewater treatment equipment includes a storage tank for storing flocculants, coagulants, and other chemicals.

[0037] This application adds a process of coupling functional activated carbon with magnetic powder. In the flocculation reaction stage, in addition to magnetic powder and flocculant, we also add biomass functional powder activated carbon that has been carbonized (such as adding pollutants that can adsorb ammonia nitrogen, organic matter, color and other pollutants), which couples with the original magnetic flocculation to improve the overall removal effect of the equipment on organic pollution, nitrogen and phosphorus pollution in water.

Claims

1. A functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device, comprising a frame and a treatment tank disposed on the frame, characterized in that, The treatment tank is fixed with three vertically spaced partitions, dividing it into a mixing zone, a blending zone, an electromagnetic sedimentation zone, and a clear water zone that are connected in sequence. A sedimentation zone is located at the bottom of the treatment tank. The blending zone, electromagnetic sedimentation zone, and clear water zone are positioned directly above the sedimentation zone. The sedimentation zone contains a sedimentation ramp and a sediment collection trough located at the lower end of the ramp. A basic electromagnetic coil is installed within the sedimentation ramp. An inlet pipe is located on the side wall of the mixing zone, and an outlet pipe is located on the side wall of the clear water zone. At least one of the mixing and blending zones has an addition port. A first auxiliary plate is vertically arranged within the blending zone, and a first electromagnetic coil is installed within the first auxiliary plate. A first current controller is installed on the frame and is electrically connected to the first electromagnetic coil. The first current controller can cause the first electromagnetic coil to generate a changing magnetic field, a stable magnetic field, or to shut off the magnetic field. When the first electromagnetic coil generates a changing magnetic field, the first auxiliary plate functions as an electromagnetic stirrer; when the first electromagnetic coil generates a stable magnetic field, the first auxiliary plate functions as an electromagnetic adsorption plate.

2. The integrated wastewater treatment equipment with functional activated carbon coupled with magnetic flocculation and sedimentation as described in claim 1, characterized in that, A second auxiliary plate is vertically arranged in the electromagnetic precipitation zone, and a second electromagnetic coil is provided in the second auxiliary plate. A second current controller is provided on the frame, and the second current controller is electrically connected to the second electromagnetic coil. The second current controller can enable the second electromagnetic coil to generate a stable magnetic field or turn off the magnetic field.

3. The integrated wastewater treatment equipment with functional activated carbon coupled with magnetic flocculation and sedimentation as described in claim 1, characterized in that, The three partitions are a first partition between the mixing zone and the blending zone, a second partition between the blending zone and the electromagnetic sedimentation zone, and a third partition between the electromagnetic sedimentation zone and the clear water zone. The first partition has several first through holes for connecting the mixing zone and the blending zone, the second partition has several second through holes for connecting the blending zone and the electromagnetic sedimentation zone, and a mud-sliding gap is provided between the second partition and the sludge inclined plate; the third partition has a water-passing gap between it and the sludge inclined plate.

4. A functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device according to claim 1, 2, or 3, characterized in that, The mixing zone is provided with a plurality of first auxiliary plates, which are spaced apart along the width of the mixing zone; and / or, the electromagnetic precipitation zone is provided with a plurality of second auxiliary plates, which are spaced apart.

5. A functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device according to claim 1, 2, or 3, characterized in that, The water outlet pipe is located at the upper part of the clear water area.

6. A functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device according to claim 1, 2, or 3, characterized in that, The water inlet pipe is located in the middle of the mixing zone.

7. A functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device according to claim 1, 2, or 3, characterized in that, The mud collection trough is equipped with a mud discharge pipe.

8. The integrated wastewater treatment equipment with functional activated carbon coupled magnetic flocculation and sedimentation as described in claim 7, characterized in that, The sludge discharge pipe is connected to a magnetic drum for recovering magnetic powder, and one end of the magnetic drum is connected to the addition port.

9. A functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device according to claim 1, 2, or 3, characterized in that, The mixing zone is equipped with a stirrer, one end of which extends out of the mixing zone and is connected to a motor mounted on the frame.

10. A functional activated carbon coupled magnetic flocculation sedimentation integrated wastewater treatment device according to claim 1, 2, or 3, characterized in that, The frame is equipped with a third current controller, which is electrically connected to the basic electromagnetic coil. The third current controller can enable the basic electromagnetic coil to generate a stable magnetic field or shut down the magnetic field.

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