Heavy metal sewage treatment device

Abstract

The utility model discloses a heavy metal sewage treatment device which comprises a sewage treatment water tank, a first filter plate and a second filter plate are respectively mounted in two pairs of limiting grooves, and the interior of the sewage treatment water tank at the front end of the first filter plate is divided into a primary filter cavity; a settling cavity is formed in the sewage treatment water tank between the first filter plate and the second filter plate, an adsorption cavity is formed in the sewage treatment water tank at the rear end of the second filter plate, an adsorption barrel is mounted in the adsorption cavity, and the adsorption barrel is filled with filler. The sewage enters the primary filtering cavity and is primarily filtered through the first filtering plate, large-particle impurities in the sewage are removed, then the sewage enters the settling cavity to further treat heavy metal ions in the sewage, and finally the sewage enters the adsorption cavity to adsorb the residual heavy metal ions, so that the sewage treatment effect is improved, and the blockage of the sewage treatment device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a heavy metal sewage treatment device. Background Art

[0002] Heavy metal wastewater treatment refers to the process of removing heavy metals from heavy metal wastewater and recycling or harmlessly treating them. Heavy metal pollution mainly comes from industrial pollution, and most industrial pollution is discharged into the environment through waste residues, wastewater, and waste gas, and is enriched in humans, animals, and plants, causing great harm to the environment and human health. Heavy metal wastewater is generated in many production processes in industries such as mining, machinery manufacturing, chemicals, electronics, and instrumentation. In order to meet the discharge requirements, heavy metal wastewater treatment equipment is required.

[0003] Heavy metal sewage treatment devices are often used in the treatment of heavy metal sewage, but most of the existing heavy metal sewage treatment devices are not equipped with pretreatment structures. Long-term use can easily lead to blockage of the heavy metal sewage treatment devices. During the blockage period, the heavy metal sewage is likely to overflow from the treatment device, and it is easy to affect the service life of the heavy metal sewage treatment device, which is inconvenient for users to use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a heavy metal sewage treatment device, which solves the technical problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a heavy metal sewage treatment device, including a sewage treatment water tank, two pairs of limit grooves are arranged on the inner wall surface of the sewage treatment water tank, a first filter plate and a second filter plate are respectively installed in the two pairs of limit grooves, the sewage treatment water tank portion at the front end of the first filter plate is set as a primary filter chamber, the sewage treatment water tank portion between the first filter plate and the second filter plate is set as a sedimentation chamber, and the sewage treatment water tank portion at the rear end of the second filter plate is set as a suction chamber. The attached chamber is provided with a stirring blade in the primary filter chamber, a water inlet is connected to the top of one side of the primary filter chamber, an impurity outlet is connected to one side of the bottom end of the primary filter chamber, a pair of air supply pipes are installed in the sedimentation chamber, both of the air supply pipes are downwardly connected to aeration pipes, and the ends of the aeration pipes are connected to aeration nozzles, a sedimentation trough is provided at the bottom end of the sedimentation chamber, a sedimentation outlet is provided at the bottom end of the sedimentation trough, an adsorption barrel is installed in the adsorption chamber, the adsorption barrel is filled with fillers, a handle is connected to the adsorption barrel, and a water outlet is connected to one side of the bottom end of the adsorption chamber.

[0006] Preferably, the stirring blade is connected to the outer wall of the sewage treatment water tank with a driving motor.

[0007] Preferably, the bottom wall surface of the primary filter chamber is a slope structure inclined toward the impurity outlet direction.

[0008] Preferably, the filler is sepiolite or organosilicon adsorbent.

[0009] Preferably, the adsorption barrel is provided with water-permeable holes.

[0010] Preferably, the filtering grade of the second filter plate is greater than the filtering grade of the first filter plate.

[0011] Beneficial Effects

[0012] The utility model provides a heavy metal sewage treatment device, which has the following beneficial effects: when the device is in use, it first enters the primary filter chamber and passes through the first filter plate for primary filtration to remove large particle impurities in the sewage, then enters the sedimentation chamber to further treat the heavy metal ions in the sewage, and finally enters the adsorption chamber to adsorb the residual heavy metal ions, thereby increasing the sewage treatment effect and reducing the clogging of the sewage treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a heavy metal wastewater treatment device described in the utility model.

[0014] In the figure: 1. sewage treatment tank; 2. primary filter chamber; 3. sedimentation chamber; 4. adsorption chamber; 5. first filter plate; 6. second filter plate; 7. air supply pipe; 8. aeration pipe; 9. aeration nozzle; 10. water inlet; 11. stirring blade; 12. impurity outlet; 13. sedimentation tank; 14. sedimentation outlet; 15. adsorption barrel; 16. filler; 17. handle; 18. water outlet. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1The utility model provides a technical solution for a heavy metal sewage treatment device: a heavy metal sewage treatment device, comprising a sewage treatment water tank 1, two pairs of limit grooves are arranged on the inner wall surface of the sewage treatment water tank 1, a first filter plate 5 and a second filter plate 6 are respectively installed in the two pairs of limit grooves, the sewage treatment water tank 1 at the front end of the first filter plate 5 is divided into a primary filter chamber 2, the sewage treatment water tank 1 between the first filter plate 5 and the second filter plate 6 is divided into a sedimentation chamber 3, the sewage treatment water tank 1 at the rear end of the second filter plate 6 is divided into an adsorption chamber 4, and the primary filter chamber 2 is installed There are stirring blades 11, a water inlet 10 is connected to the top of one side of the primary filter chamber 2, an impurity outlet 12 is connected to one side of the bottom end of the primary filter chamber 2, a pair of air supply pipes 7 are installed in the sedimentation chamber 3, the pair of air supply pipes 7 are connected downwardly to an aeration pipe 8, the end of the aeration pipe 8 is connected to an aeration nozzle 9, a sedimentation trough 13 is provided at the bottom end of the sedimentation chamber 3, a sedimentation outlet 14 is provided at the bottom end of the sedimentation trough 13, an adsorption barrel 15 is installed in the adsorption chamber 4, the adsorption barrel 15 is filled with filler 16, a handle 17 is connected to the adsorption barrel 15, and a water outlet 18 is connected to one side of the bottom end of the adsorption chamber 4.

[0017] Furthermore, the stirring blade 11 is connected to the outer wall of the sewage treatment tank 1 with a driving motor.

[0018] Furthermore, the bottom wall surface of the primary filter chamber 2 is a slope structure inclined toward the impurity outlet 12 .

[0019] Furthermore, the filler 16 is made of sepiolite or organic silicon adsorbent.

[0020] Furthermore, the adsorption barrel 15 is provided with water-permeable holes.

[0021] Furthermore, the filtering grade of the second filter plate 6 is greater than the filtering grade of the first filter plate 5 .

[0022] Embodiment: When the device is in use, the material enters the primary filter chamber 2 from the water inlet 10, and the driving motor drives the stirring blade 11 to rotate to stir the wastewater in the primary filter chamber 2. Impurities larger than the filter aperture of the first filter plate 5 are filtered out and remain in the primary filter chamber 2. Under the action of gravity, they fall to the bottom of the primary filter chamber 2 and flow along the inclined surface of the bottom wall of the primary filter chamber 2 to the impurity outlet 12.

[0023] The wastewater filtered by the first filter plate 5 enters the sedimentation chamber 3, and the gas is sent to the aeration nozzle 9 through the air supply pipe 7 and the aeration pipe 8, so as to aerate the sewage in the sedimentation chamber 3, increase the fluidity of the sewage, and make the sewage fully contact with the added reagent. The air supply is closed during sedimentation, so that the precipitate enters the sedimentation tank 13 under the action of gravity and is discharged through the sedimentation outlet 14.

[0024] The settled sewage is filtered again through the second filter plate 6 and enters the adsorption chamber 4, where it fully contacts the filler 16 in the adsorption barrel 15 and absorbs the heavy metal ions in the sewage again. The sewage adsorbed by the filler 16 is finally discharged through the outlet 18 for the next step of treatment.

[0025] The first filter plate 5 and the second filter plate 6 can be cleaned by pulling upwards through the handle at the top, and the adsorption barrel 15 can also be pulled out of the adsorption chamber 4 through the handle 17 to clean or replace the filler 16.

[0026] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A heavy metal wastewater treatment device, comprising a wastewater treatment tank (1), characterized in that: Two pairs of limiting grooves are arranged on the inner wall surface of the sewage treatment water tank (1), and a first filter plate (5) and a second filter plate (6) are respectively installed in the two pairs of limiting grooves. The part of the sewage treatment water tank (1) at the front end of the first filter plate (5) is set as a primary filter chamber (2), the part of the sewage treatment water tank (1) between the first filter plate (5) and the second filter plate (6) is set as a sedimentation chamber (3), and the part of the sewage treatment water tank (1) at the rear end of the second filter plate (6) is set as an adsorption chamber (4). A stirring blade (11) is installed in the primary filter chamber (2), and a water inlet (10) is connected to the top end of one side of the primary filter chamber (2). The bottom end of the primary filter chamber (2) is connected to an impurity outlet (12), a pair of air supply pipes (7) are installed in the sedimentation chamber (3), the pair of air supply pipes (7) are connected downwardly to an aeration pipe (8), the ends of the aeration pipes (8) are connected to an aeration nozzle (9), a sedimentation trough (13) is provided at the bottom end of the sedimentation chamber (3), a sedimentation outlet (14) is provided at the bottom end of the sedimentation trough (13), an adsorption barrel (15) is installed in the adsorption chamber (4), the adsorption barrel (15) is filled with a filler (16), a handle (17) is connected to the adsorption barrel (15), and a water outlet (18) is connected to one side of the bottom end of the adsorption chamber (4).

2. A heavy metal wastewater treatment device according to claim 1, characterized in that: The stirring blade (11) is connected to a driving motor on the outer wall surface of the sewage treatment water tank (1).

3. A heavy metal wastewater treatment device according to claim 1, characterized in that: The bottom wall surface of the primary filter chamber (2) is a slope structure inclined toward the impurity outlet (12).

4. A heavy metal wastewater treatment device according to claim 1, characterized in that: The filler (16) is sepiolite or an organic silicon adsorbent.

5. A heavy metal wastewater treatment device according to claim 1, characterized in that: The adsorption barrel (15) is provided with water permeable holes.

6. A heavy metal wastewater treatment device according to claim 1, characterized in that: The filtering grade of the second filter plate (6) is greater than the filtering grade of the first filter plate (5).

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