Phosphorus removal device based on magnetized adsorbent

Abstract

The utility model discloses a dephosphorization device based on a magnetized adsorbent, which comprises a main tank body, a fender is arranged in the main tank body, and the fender divides the main tank body into a water storage area and a purification treatment area; a partition plate is arranged in the purification treatment area and divides the purification treatment area into a purification area and a water purification area; the main tank body is provided with a flow equalizing pipe communicated with the water storage area, and the flow equalizing pipe is used for inputting a mixed solution obtained by mixing wastewater to be treated and a magnetized adsorbent into the water storage area; a magnetic plate is arranged at the bottom of the purification area and is used for applying a magnetic attraction effect on the magnetized adsorbent entering the purification area from the water storage area; a water outlet is formed in the water purification area and is used for discharging treated water entering the water purification area through the purification area. The dephosphorization device based on the magnetized adsorbent has the advantages that dephosphorization is efficient, the settling performance is good, and the adsorbent is easy to clean and recycle.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and specifically relates to a phosphorus removal device based on a magnetic adsorbent. Background Art

[0002] How to properly dispose of iron-containing wastewater in mine water and realize green recycling has become a hot issue.

[0003] At present, the main methods for removing phosphorus from urban sewage in my country are biological method (AAO + high-efficiency precipitation) and chemical precipitation method. The biological method is widely used in urban sewage treatment plants because of its low operating cost. However, the polyphosphate bacteria that play a decisive role in the removal effect are greatly affected by external environmental factors such as pH and temperature. The effluent water quality fluctuates greatly with the seasons, and it is necessary to combine the chemical agent polyaluminum chloride for secondary phosphorus removal. The flocculant used in the chemical precipitation method is prone to secondary pollution, and has the disadvantages of low sedimentation rate and imperfect regeneration system; in addition, it is difficult for the flocculant to be fully mixed with the sewage and wastewater during the adsorption process, so the purification efficiency is low.

[0004] Compared with the existing biological method and chemical precipitation method, the adsorption method has greater development potential. The adsorption method has the advantages of good adsorption effect, stable operation and convenient installation of treatment equipment, but the current adsorption method has poor sedimentation performance and is prone to secondary pollution. Summary of the invention

[0005] In view of this, the purpose of the utility model is to provide a phosphorus removal device based on a magnetic adsorbent, which has the advantages of efficient phosphorus removal, good sedimentation performance and easy cleaning and recovery of the adsorbent.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] A dephosphorization device based on a magnetic adsorbent comprises a main tank body, wherein a fender is provided in the main tank body, and the fender separates the main tank body into a water storage area and a purification treatment area; a partition is provided in the purification treatment area, and the partition separates the purification treatment area into a purification area and a water purification area;

[0008] The main pool body is provided with a flow balancing pipe connected to the water storage area, and the flow balancing pipe is used to input the mixed liquid of the wastewater to be treated and the magnetic adsorbent into the water storage area;

[0009] A magnetic plate is provided at the bottom of the purification area, and the magnetic plate is used to exert magnetic attraction on the magnetized adsorbent entering the purification area from the water storage area;

[0010] The water purification area is provided with a drain outlet, and the drain outlet is used to discharge the treated water that enters the water purification area through the purification area.

[0011] Furthermore, the height of the mud guard is lower than that of the main pool body, and the mixed liquid in the water storage area enters the purification area from above the mud guard; or, a first connecting port for connecting the water storage area and the purification area is provided on the upper part of the mud guard.

[0012] Furthermore, the partition is installed obliquely in the purification treatment area, the purification area is formed below the partition, and the water purification area is formed above the partition; a second connecting port for connecting the purification area and the water purification area is provided at the lower end of the partition.

[0013] Furthermore, the fender is vertically arranged, and the horizontal distance between the partition and the fender gradually increases in the vertical downward direction. The height of the higher end of the partition is higher than the height of the fender and is equal to the height of the main pool body.

[0014] Furthermore, the partition includes an upper partition and a lower partition, the upper partition is located on the side of the lower partition close to the fender, and the inclination angle of the upper partition relative to the horizontal plane is greater than the inclination angle of the lower partition relative to the horizontal plane.

[0015] Furthermore, a first mud discharge port and a first mud scraper for driving mud and sand precipitated from the mixed liquid to be discharged to the first mud discharge port are provided at the bottom of the water storage area.

[0016] Furthermore, a second mud discharge port and a second mud scraper for driving the sediment precipitated by the mixed liquid under the action of magnetic attraction to the second mud discharge port are provided at the bottom of the purification zone.

[0017] Furthermore, the second mud discharge port is arranged on a side of the purification area away from the mud guard.

[0018] Furthermore, a mixing zone is provided on the flow balancing pipe, and the mixing zone is connected to a liquid inlet pipe for inputting the wastewater to be treated and a screw feeder for inputting the magnetic adsorbent.

[0019] Furthermore, the screw feeder includes a feed hopper, a motor and a spiral feed pipe arranged at the bottom of the feed hopper, the spiral feed pipe is connected to the mixing zone, and the motor is installed at the bottom of the feed hopper to drive the magnetized adsorbent to be input into the mixing zone through the spiral feed pipe.

[0020] The beneficial effects of the utility model are:

[0021] The utility model discloses a phosphorus removal device based on a magnetic adsorbent, which inputs a mixed liquid formed by mixing wastewater to be treated and a magnetic adsorbent into a water storage area through a flow equalizing pipe; in the water storage area, most of the sediment in the mixed liquid settles freely, and then enters the purification area, where the magnetic adsorbent settles quickly under the magnetic attraction generated by the magnetic plate; the supernatant enters the clean water area and is discharged from the drain; in summary, the utility model discloses a phosphorus removal device based on a magnetic adsorbent, which utilizes the adsorption effect of the magnetic adsorbent to efficiently remove phosphorus; the magnetic adsorbent can be quickly settled through the magnetic attraction generated by the magnetic plate, and has the advantage of good settling performance; after the magnetic adsorbent is settled under the magnetic attraction, it also has the advantage of being easy to clean and recycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:

[0023] Figure 1 It is a schematic structural diagram of an embodiment of a phosphorus removal device based on a magnetic adsorbent of the utility model.

[0024] Description of reference numerals:

[0025] 1-screw feeder; 101-feed hopper; 102-screw conveying pipe; 2-main tank body; 201-liquid inlet pipe; 202-mixing zone; 203-flow equalizing pipe; 204-first mud outlet; 205 first mud scraper; 206-mud guard; 207-partition; 208-second mud scraper; 209-second mud outlet; 210-drainage outlet; 3-magnetic plate; 4-water storage area; 5-purification area; 6-water purification area. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] like Figure 1As shown, the dephosphorization device based on the magnetized adsorbent of this embodiment includes a main pool body 2, and a mud guard 206 is provided in the main pool body 2, and the mud guard 206 divides the main pool body 2 into a water storage area 4 and a purification treatment area. A partition 207 is provided in the purification treatment area, and the partition divides the purification treatment area into a purification area 5 and a clean water area 6. A flow equalizing pipe 203 connected to the water storage area 4 is provided on the main pool body 2, and the flow equalizing pipe 203 is used to input the mixed liquid after the wastewater to be treated and the magnetized adsorbent are mixed into the water storage area 4. A magnetic plate 3 is provided at the bottom of the purification area 5 of this embodiment, and the magnetic plate 3 is used to apply a magnetic attraction to the magnetized adsorbent entering from the water storage area 4 into the purification area 5. A drain outlet 210 is provided on the clean water area 6, and the drain outlet 210 is used to discharge the treated water that enters the clean water area 6 through the purification area 5. In this embodiment, the magnetized adsorbent adopts Mg 60 Al 40 -LDH composites.

[0028] In this embodiment, the height of the mud guard 206 is lower than the height of the main pool body 2, and the mixed liquid in the water storage area 4 enters the purification area 5 from above the mud guard 206. Of course, in some other embodiments, a first connecting port for connecting the water storage area 4 and the purification area 5 can also be provided on the upper part of the mud guard 206, so as to achieve the purpose of connecting the water storage area 4 and the purification area 5.

[0029] In this embodiment, the partition 207 is installed at an angle in the purification treatment area, and the purification area 5 is formed below the partition 207, and the water purification area 6 is formed above the partition 207. That is, in this embodiment, the water purification area 6 is located above the purification area 5, and a second connecting port for connecting the purification area 5 and the water purification area 6 is provided at the lower end of the partition 207.

[0030] In this embodiment, the fender 206 is vertically arranged, and the horizontal distance between the partition 207 and the fender 206 gradually increases in the vertical downward direction. The height of the higher end of the partition 207 is higher than the height of the fender 206 and is equal to the height of the main pool body 2. In this way, the inclined partition 207 can guide the mixed liquid entering the purification area 5. At the same time, the height of the partition 207 relative to the ground of the main pool body 2 gradually decreases, which will also increase the magnetic attraction of the magnetic plate to the magnetized adsorbent, and achieve a better sedimentation effect. In this embodiment, the partition 207 includes an upper partition and a lower partition, and the upper partition is located on the side of the lower partition close to the fender 206, and the inclination angle of the upper partition relative to the horizontal plane is greater than the inclination angle of the lower partition relative to the horizontal plane.

[0031] The bottom of the water storage area 4 of this embodiment is provided with a first mud discharge port 204 and a first mud scraper 205 for driving the sediment of the mixed liquid to be discharged to the first mud discharge port 204, so as to timely discharge the sediments such as the sediment settled at the bottom of the water storage area 4. The bottom of the purification area 5 of this embodiment is provided with a second mud discharge port 209 and a second mud scraper 208 for driving the sediment precipitated by the mixed liquid under the action of magnetic attraction to the second mud discharge port 209. In the preferred implementation of this embodiment, the second mud discharge port 209 is arranged on the side of the purification area 5 away from the mud guard 206.

[0032] The flow equalizing tube 203 of this embodiment is provided with a mixing zone 202, and the mixing zone 202 is connected with a liquid inlet pipe 201 for inputting the wastewater to be treated and a screw feeder 1 for inputting the magnetized adsorbent. Specifically, the screw feeder 1 includes a feed hopper 101, a motor (not shown in the figure) and a spiral feed pipe 102 arranged at the bottom of the feed hopper 101, the spiral feed pipe 102 is connected to the mixing zone 202, and the motor is installed at the bottom of the feed hopper 101 to drive the magnetized adsorbent to be input into the mixing zone 202 through the spiral feed pipe 102. In this embodiment, the spiral feed pipe 102 is spiral-shaped, and under the driving action of the motor, the magnetized adsorbent can be evenly transported to the mixing zone and fully mixed with the wastewater to be treated. In this embodiment, the mixing zone 202 is spherical, and its diameter is larger than the flow equalizing tube 203. The magnetized adsorbent enters the mixing zone 202 at a uniform speed, and forms turbulence with the sewage and wastewater entering the mixing zone 202 through the flow equalizing tube 203, which is convenient for full mixing.

[0033] In the dephosphorization device based on the magnetic adsorbent of this embodiment, the mixed liquid of the wastewater to be treated and the magnetic adsorbent is input into the water storage area 4 through the equalizing pipe 203; in the water storage area 4, most of the sediment in the mixed liquid settles freely, and then enters the purification area 5, and the magnetic adsorbent settles quickly under the magnetic attraction generated by the magnetic plate 3; the supernatant enters the clean water area 6 and is discharged from the drain 210. In summary, the dephosphorization device based on the magnetic adsorbent of this embodiment can remove phosphorus efficiently by utilizing the adsorption effect of the magnetic adsorbent; the magnetic adsorbent can be quickly settled by the magnetic attraction generated by the magnetic plate 3, and has the advantage of good settling performance; after the magnetic adsorbent settles under the magnetic attraction, it also has the advantage of easy cleaning and recovery.

[0034] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A dephosphorization device based on a magnetic adsorbent, characterized in that: The invention comprises a main pool body (2), wherein a fender (206) is provided in the main pool body (2), and the fender (206) divides the main pool body (2) into a water storage area (4) and a purification treatment area; a partition (207) is provided in the purification treatment area, and the partition (207) divides the purification treatment area into a purification area (5) and a water purification area (6); The main pool body (2) is provided with a flow balancing pipe (203) connected to the water storage area (4), and the flow balancing pipe (203) is used to input a mixed liquid obtained by mixing the wastewater to be treated with the magnetic adsorbent into the water storage area (4); A magnetic plate (3) is provided at the bottom of the purification area (5), and the magnetic plate (3) is used to exert a magnetic attraction on the magnetized adsorbent entering the purification area (5) from the water storage area (4); The water purification zone (6) is provided with a drain outlet (210), and the drain outlet (210) is used to discharge the treated water that enters the water purification zone (6) through the purification zone (5).

2. The phosphorus removal device based on magnetic adsorbent according to claim 1 is characterized in that: The height of the mud guard (206) is lower than the height of the main pool body (2), and the mixed liquid in the water storage area (4) enters the purification area (5) from above the mud guard (206); or, a first connecting port for connecting the water storage area (4) and the purification area (5) is provided on the upper part of the mud guard (206).

3. The phosphorus removal device based on magnetic adsorbent according to claim 1 is characterized in that: The partition (207) is installed obliquely in the purification treatment area, the purification area (5) is formed below the partition (207), and the water purification area (6) is formed above the partition (207); a second connecting port for connecting the purification area (5) and the water purification area (6) is provided at a lower end of the partition (207).

4. The phosphorus removal device based on magnetic adsorbent according to claim 3 is characterized in that: The mudguard (206) is arranged vertically, and the horizontal distance between the partition (207) and the mudguard (206) gradually increases in the vertical downward direction. The height of the higher end of the partition (207) is higher than the height of the mudguard (206) and is equal to the height of the main pool body (2).

5. The phosphorus removal device based on magnetic adsorbent according to claim 1 is characterized in that: The partition (207) comprises an upper partition and a lower partition, the upper partition is located on a side of the lower partition close to the fender (206), and an inclination angle of the upper partition relative to a horizontal plane is greater than an inclination angle of the lower partition relative to the horizontal plane.

6. The phosphorus removal device based on magnetic adsorbent according to claim 1, characterized in that: The bottom of the water storage area (4) is provided with a first mud discharge port (204) and a first mud scraper (205) for driving mud and sand precipitated from the mixed liquid to be discharged to the first mud discharge port (204).

7. The phosphorus removal device based on magnetic adsorbent according to claim 1, characterized in that: The bottom of the purification area (5) is provided with a second mud discharge port (209) and a second mud scraper (208) for driving the sediment precipitated by the mixed liquid under the action of magnetic attraction to the second mud discharge port (209).

8. The phosphorus removal device based on magnetic adsorbent according to claim 7, characterized in that: The second mud discharge port (209) is arranged on a side of the purification area (5) away from the mud guard (206).

9. The phosphorus removal device based on a magnetic adsorbent according to any one of claims 1 to 8, characterized in that: The flow equalizing pipe (203) is provided with a mixing zone (202), and the mixing zone (202) is connected to a liquid inlet pipe (201) for inputting wastewater to be treated and a screw feeder (1) for inputting a magnetic adsorbent.

10. The phosphorus removal device based on magnetic adsorbent according to claim 9, characterized in that: The screw feeder (1) comprises a feed hopper (101), a motor and a screw conveying pipe (102) arranged at the bottom of the feed hopper (101), wherein the screw conveying pipe (102) is connected to the mixing zone (202), and the motor is installed at the bottom of the feed hopper (101) to drive the magnetized adsorbent to be input into the mixing zone (202) through the screw conveying pipe (102).

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