Heavy metal ion and organic pollutant filtering device based on biochar

Abstract

The utility model discloses a heavy metal ion and organic pollutant filtering device based on biochar, which relates to the technical field of sewage treatment, and comprises a treatment tank, an adsorption assembly is arranged in the treatment tank, the adsorption assembly is used for adsorbing and filtering heavy metal substances in sewage, and the adsorption assembly is used for adsorbing and filtering the heavy metal substances in the sewage. A filtering mechanism is arranged on the upper surface of the treatment tank and is used for primarily filtering the sewage. According to the sewage treatment device, the adsorption assembly is arranged in the treatment tank, heavy metal substances in sewage can be adsorbed by using the porous adsorption block, and the driving motor can be used for driving the plurality of limiting frames to rotate in the treatment tank, so that the porous adsorption block is in full contact with the sewage in the treatment tank, and the adsorption effect is improved; a maintenance hole is formed in the top of the treatment tank, so that the porous adsorption block in the limiting frame can be mounted and replaced through the maintenance hole, and the purpose of convenient maintenance is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a biochar-based device for filtering heavy metal ions and organic pollutants. Background Technology

[0002] Biochar contains abundant carbon and plant nutrients, has a rich porous structure, a large specific surface area, and numerous oxygen-containing active groups on its surface, making it a multifunctional material. It can not only improve soil and increase fertility, but also adsorb heavy metals and organic pollutants from soil or wastewater.

[0003] In the treatment of industrial wastewater, biochar-based filtration devices can be used to filter and extract heavy metal ions from the wastewater.

[0004] For example, patent document CN218115204U discloses an industrial wastewater heavy metal ion filtration and extraction device, including a treatment box. A cylindrical filter plate is suspended below the water inlet hopper. The filter plate is axially vertical and has an open top. The top of the filter plate is adapted to and sealed to the bottom of the water inlet hopper. A guide cone is installed on the inner bottom wall of the treatment box to facilitate the removal and replacement of the filter plate, avoid clogging of the filter plate pores, and improve filtration efficiency.

[0005] In actual use, the filtration and extraction devices proposed in the above patent documents only use filter plates to filter sewage, which cannot fully adsorb and remove heavy metals in the sewage. In addition, the filter plates of the device have a fixed structure, which results in an effective contact range between the filter screen and the sewage, making it difficult to fully adsorb and filter heavy metals and organic pollutants in the sewage. Utility Model Content

[0006] This utility model discloses a heavy metal ion and organic pollutant filtration device based on biochar.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A biochar-based heavy metal ion and organic pollutant filtration device includes a treatment tank, an adsorption component inside the treatment tank for adsorbing and filtering heavy metal substances in wastewater, and a filtration mechanism on the upper surface of the treatment tank for preliminary filtration of wastewater.

[0009] The adsorption assembly includes a rotating shaft rotatably connected to the bottom wall of the processing tank. Several extension rods are fixedly connected to the surface of the rotating shaft. A limiting frame is fixedly connected to the end of the extension rod away from the rotating shaft. A porous adsorption block is inserted and installed inside the limiting frame. A rectangular maintenance hole is opened on the upper surface of the processing tank. The position of the maintenance hole corresponds to the limiting frame, and the size of the maintenance hole matches the porous adsorption block.

[0010] The filtration mechanism includes a filter box fixed to the upper surface of the processing tank. A rotary motor is fixedly installed on the upper surface of the filter box. The output shaft of the rotary motor extends into the interior of the filter box and is fixedly connected to a filter cylinder.

[0011] In a preferred embodiment, a limiting ring is fixedly connected to the inner bottom wall of the filter box. The position of the limiting ring corresponds to that of the filter cylinder, and the limiting ring is rotatably connected to the inner wall of the filter cylinder.

[0012] In a preferred embodiment, a fixing rod is fixedly connected to the inner wall of the filter box, and a scraper is fixedly connected to the end of the fixing rod. The scraper is slidably connected to the inner wall of the filter cartridge.

[0013] In a preferred embodiment, a feed pipe is fixedly embedded on the left side of the filter box, and a feeding pipe is fixedly embedded on the inner bottom wall of the filter box. The bottom end of the feeding pipe extends into the interior of the processing tank, and the feeding pipe is located inside the filter cylinder.

[0014] In a preferred embodiment, a limiting component is fixedly provided on the upper surface of the extension rod. The limiting component includes a limiting plate, and a sliding through hole is formed on the surface of the limiting plate. A limiting top rod is slidably connected to the inner wall of the sliding through hole. A positioning groove matching the limiting top rod is formed on the side of the porous adsorption block.

[0015] In a preferred embodiment, one end of the limiting rod is fixedly connected to a movable plate, and a return spring is sleeved on the surface of the limiting rod. One end of the return spring is fixedly connected to the surface of the limiting rod, and the other end of the return spring is fixedly connected to the surface of the limiting plate.

[0016] In a preferred embodiment, a cover plate is rotatably connected to the upper surface of the treatment tank, the position of which corresponds to the maintenance hole.

[0017] In a preferred embodiment, a drive motor is fixedly mounted on the lower surface of the processing tank, the output shaft of the drive motor extends into the interior of the processing tank and is fixedly connected to the bottom end of the rotating shaft, and a discharge pipe is fixedly embedded on the side of the processing tank.

[0018] As can be seen from the above, the biochar-based heavy metal ion and organic pollutant filtration device provided by this utility model has the following technical effects.

[0019] Firstly, by installing an adsorption assembly inside the treatment tank, porous adsorption blocks can be used to adsorb heavy metals in the wastewater. Furthermore, a drive motor can rotate multiple limiting frames inside the treatment tank, ensuring that the porous adsorption blocks are in full contact with the wastewater, thus improving the adsorption effect. The maintenance holes at the top of the treatment tank allow for the installation and replacement of the porous adsorption blocks inside the limiting frames, facilitating maintenance.

[0020] Secondly, by setting up a filtration mechanism, the filter cartridge in the filter box can be used to perform preliminary filtration of sewage, thereby removing impurities and organic pollutants from the sewage. This facilitates subsequent heavy metal ion adsorption of the sewage. Furthermore, a rotary motor can be used to drive the filter cartridge to rotate and filter, improving filtration efficiency. At the same time, a scraper can be used to clean the surface of the filter cartridge during its rotation. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of a biochar-based heavy metal ion and organic pollutant filtration device proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the front section of the treatment tank of a biochar-based heavy metal ion and organic pollutant filtration device proposed in this utility model.

[0023] Figure 3 This is a front cross-sectional view of the filter assembly of a biochar-based heavy metal ion and organic pollutant filtration device proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the adsorption component structure of a biochar-based heavy metal ion and organic pollutant filtration device proposed in this utility model.

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0026] In the attached diagram: 1. Processing tank; 2. Adsorption assembly; 3. Filtration mechanism; 4. Limiting assembly; 5. Positioning groove; 6. Cover plate; 7. Drive motor; 8. Discharge pipe;

[0027] 201. Rotating shaft; 202. Extension rod; 203. Limiting frame; 204. Porous suction block; 205. Maintenance hole;

[0028] 301. Filter box; 302. Rotary motor; 303. Filter cartridge; 304. Limiting ring; 305. Scraper bar; 306. Feed pipe; 307. Feed tube;

[0029] 401. Limiting plate; 402. Limiting rod; 403. Movable plate; 404. Return spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Reference Figure 1 A heavy metal ion and organic pollutant filtration device based on biochar includes a treatment tank 1, a discharge pipe 8 fixedly embedded on the side of the treatment tank 1, and a switch valve installed on the surface of the discharge pipe 8.

[0033] It should be noted that the treatment tank 1 is equipped with an adsorption component 2, which is used to adsorb and filter heavy metals in the wastewater. The upper surface of the treatment tank 1 is equipped with a filtration mechanism 3, which is used to perform preliminary filtration of the wastewater.

[0034] Reference Figure 2 and Figure 4 In a preferred embodiment, the adsorption assembly 2 includes a rotating shaft 201 rotatably connected to the bottom wall of the processing tank 1. A drive motor 7 is fixedly disposed on the lower surface of the processing tank 1. The output shaft of the drive motor 7 extends into the interior of the processing tank 1 and is fixedly connected to the bottom end of the rotating shaft 201.

[0035] It should be noted that several extension rods 202 are fixedly connected to the surface of the rotating shaft 201. The end of the extension rod 202 away from the rotating shaft 201 is fixedly connected to a limiting frame 203. A porous adsorption block 204 is inserted and installed inside the limiting frame 203. A rectangular maintenance hole 205 is opened on the upper surface of the treatment tank 1. The position of the maintenance hole 205 corresponds to the limiting frame 203, and the size of the maintenance hole 205 matches the porous adsorption block 204.

[0036] It should be noted that the porous adsorption block 204 is filled with biological activated carbon adsorption material, which can be used to adsorb and remove heavy metals in wastewater.

[0037] A cover plate 6 is rotatably connected to the upper surface of the treatment tank 1, and the position of the cover plate 6 corresponds to the maintenance hole 205.

[0038] By providing a maintenance hole 205 on the top of the treatment tank 1, the operator can open the cover plate 6 and install and replace the porous adsorption block 204 inside the limiting frame 203 through the maintenance hole 205, thus facilitating the individual replacement of the porous adsorption block 204 that needs to be replaced.

[0039] It is worth noting that by setting an adsorption component 2 inside the treatment tank 1, the porous adsorption block 204 inside the limiting frame 203 can adsorb heavy metal substances in the sewage. At the same time, the drive motor 7 drives the rotating shaft 201 to rotate, thereby driving several limiting frames 203 to rotate inside the treatment tank 1, so that the porous adsorption block 204 can fully contact the sewage in the treatment tank 1, thereby improving the adsorption effect.

[0040] Reference Figure 3 and Figure 5 In a preferred embodiment, a limiting component 4 is fixedly provided on the upper surface of the extension rod 202. The limiting component 4 includes a limiting plate 401. A sliding through hole is provided on the surface of the limiting plate 401. A limiting top rod 402 is slidably connected to the inner wall of the sliding through hole. A positioning groove 5 matching the limiting top rod 402 is provided on the side of the porous adsorption block 204.

[0041] One end of the limiting rod 402 is fixedly connected to the movable plate 403. A return spring 404 is sleeved on the surface of the limiting rod 402. One end of the return spring 404 is fixedly connected to the surface of the limiting rod 402, and the other end of the return spring 404 is fixedly connected to the surface of the limiting plate 401.

[0042] It is worth noting that by setting the limiting component 4, after the porous adsorption block 204 is installed, the return spring 404 can drive the limiting top rod 402 to be inserted into the positioning groove 5 on the side of the porous adsorption block 204. Thus, the limiting top rod 402 is used to press and limit the porous adsorption block 204, which helps to improve the stability of the porous adsorption block 204 during the rotation of the limiting frame 203.

[0043] It should be noted that the filtration mechanism 3 includes a filter box 301 fixed on the upper surface of the processing tank 1. A rotary motor 302 is fixedly installed on the upper surface of the filter box 301. The output shaft of the rotary motor 302 extends into the interior of the filter box 301 and is fixedly connected to a filter cylinder 303.

[0044] In a preferred embodiment, a limiting ring 304 is fixedly connected to the inner bottom wall of the filter box 301. The position of the limiting ring 304 corresponds to that of the filter cylinder 303, and the limiting ring 304 is rotatably connected to the inner wall of the filter cylinder 303.

[0045] It should be noted that a fixing rod is fixedly connected to the inner wall of the filter box 301, and a scraper 305 is fixedly connected to the end of the fixing rod. The scraper 305 is slidably connected to the inner wall of the filter cylinder 303.

[0046] It is worth noting that by setting a filter mechanism 3 at the feed position of the treatment tank 1, the filter cylinder 303 in the filter box 301 can be used to perform preliminary filtration of sewage, remove various impurity particles from the sewage, and facilitate subsequent heavy metal ion adsorption of sewage. The filter cylinder 303 can be rotated by the rotary motor 302 to improve filtration efficiency. At the same time, the surface of the filter cylinder 303 can be cleaned by the scraper 305 during the rotation of the filter cylinder 303.

[0047] It should be noted that a feed pipe 306 is fixedly embedded on the left side of the filter box 301, and a feeding pipe 307 is fixedly embedded on the inner bottom wall of the filter box 301. The bottom end of the feeding pipe 307 extends into the interior of the processing tank 1, and the feeding pipe 307 is located inside the filter cylinder 303.

[0048] By setting up the feed pipe 306, wastewater can be fed into the filter box 301, and by setting up the feed pipe 307, the pre-filtered wastewater can be fed into the treatment tank 1.

[0049] Working principle: When in use, the sewage is first fed into the filter box 301 through the feed pipe 306. The filter cylinder 303 filters the impurity particles in the sewage. Then, the sewage is fed into the treatment tank 1 through the feed pipe 307. The drive motor 7 drives several porous adsorption blocks 204 to adsorb heavy metal ions in the sewage. Finally, the treated sewage is discharged through the discharge pipe 8.

[0050] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A biochar-based heavy metal ion and organic pollutant filtration device, comprising a treatment tank (1), characterized in that, The treatment tank (1) is equipped with an adsorption component (2) inside, which is used to adsorb and filter heavy metal substances in the sewage. The upper surface of the treatment tank (1) is equipped with a filtration mechanism (3), which is used to perform preliminary filtration of the sewage. The adsorption assembly (2) includes a rotating shaft (201) rotatably connected to the bottom wall of the processing tank (1). Several extension rods (202) are fixedly connected to the surface of the rotating shaft (201). A limiting frame (203) is fixedly connected to one end of the extension rod (202) away from the rotating shaft (201). A porous adsorption block (204) is inserted and installed inside the limiting frame (203). A rectangular maintenance hole (205) is opened on the upper surface of the processing tank (1). The position of the maintenance hole (205) corresponds to the limiting frame (203), and the size of the maintenance hole (205) matches the porous adsorption block (204). The filtration mechanism (3) includes a filter box (301) fixed on the upper surface of the processing tank (1). A rotary motor (302) is fixedly installed on the upper surface of the filter box (301). The output shaft of the rotary motor (302) extends into the interior of the filter box (301) and is fixedly connected to a filter cylinder (303).

2. The heavy metal ion and organic pollutant filtration device based on biochar according to claim 1, characterized in that, A limiting ring (304) is fixedly connected to the inner bottom wall of the filter box (301). The position of the limiting ring (304) corresponds to that of the filter cylinder (303), and the limiting ring (304) is rotatably connected to the inner wall of the filter cylinder (303).

3. The heavy metal ion and organic pollutant filtration device based on biochar according to claim 1, characterized in that, A fixing rod is fixedly connected to the inner wall of the filter box (301), and a scraper (305) is fixedly connected to the end of the fixing rod. The scraper (305) is slidably connected to the inner wall of the filter cylinder (303).

4. The heavy metal ion and organic pollutant filtration device based on biochar according to claim 1, characterized in that, The filter box (301) is fixedly embedded with a feed pipe (306) on the left side, and a feeding pipe (307) is fixedly embedded in the inner bottom wall of the filter box (301). The bottom end of the feeding pipe (307) extends into the interior of the processing tank (1), and the feeding pipe (307) is located inside the filter cylinder (303).

5. The heavy metal ion and organic pollutant filtration device based on biochar according to claim 1, characterized in that, A limiting component (4) is fixedly provided on the upper surface of the extension rod (202). The limiting component (4) includes a limiting plate (401). A sliding through hole is provided on the surface of the limiting plate (401). A limiting top rod (402) is slidably connected to the inner wall of the sliding through hole. A positioning groove (5) matching the limiting top rod (402) is provided on the side of the porous adsorption block (204).

6. The heavy metal ion and organic pollutant filtration device based on biochar according to claim 5, characterized in that, One end of the limiting rod (402) is fixedly connected to a movable plate (403), and a return spring (404) is sleeved on the surface of the limiting rod (402). One end of the return spring (404) is fixedly connected to the surface of the limiting rod (402), and the other end of the return spring (404) is fixedly connected to the surface of the limiting plate (401).

7. The heavy metal ion and organic pollutant filtration device based on biochar according to claim 1, characterized in that, The upper surface of the treatment tank (1) is rotatably connected to a cover plate (6), the position of which corresponds to the maintenance hole (205).

8. The heavy metal ion and organic pollutant filtration device based on biochar according to claim 1, characterized in that, A drive motor (7) is fixedly installed on the lower surface of the processing tank (1). The output shaft of the drive motor (7) extends into the interior of the processing tank (1) and is fixedly connected to the bottom end of the rotating shaft (201). A discharge pipe (8) is fixedly embedded on the side of the processing tank (1).

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