Heavy metal adsorption and purification device for sludge dewatering filtrate

Abstract

The utility model belongs to sludge dewatering technical field, concretely relates to sludge dewatering filtrate heavy metal adsorption purification treatment device, including purification pool, the outer wall of one end of purification pool near upper end is connected and installed with liquid inlet, the outer wall of one end of purification pool near lower end is connected and installed with liquid discharge port, the utility model, liquid inlet and sludge dewatering filtrate's drainage port butt joint, the clean water pipe connection after liquid discharge port purification. When using, sludge dewatering filtrate enters the purification pool through liquid inlet, sludge dewatering filtrate will flow from the first filter plate first, so that the first filter plate can filter and remove the larger impurities in sludge dewatering filtrate. The sludge dewatering filtrate after preliminary filtration will further flow to the area of activated carbon filter layer, when sludge dewatering filtrate passes through activated carbon filter layer, the activated carbon in activated carbon filter layer will adsorb the metal in sludge dewatering filtrate at this time, so that the adsorption and purification treatment of heavy metal in sludge dewatering filtrate can be completed.

Description

Technical Field

[0001] This utility model belongs to the field of sludge dewatering technology, specifically relating to a heavy metal adsorption and purification treatment device for sludge dewatering filtrate. Background Technology

[0002] Heavy metals in sludge dewatering filtrate refer to toxic, bioaccumulative metallic elements or their compounds released with the filtrate during the dewatering process (such as filter press and centrifugation) of sludge generated in wastewater treatment. Due to their complex sources and persistent toxicity, these substances have become key pollutants to be controlled in the water treatment field.

[0003] If heavy metals in sludge dewatering filtrate are discharged directly without treatment, they will trigger a multi-dimensional environmental pollution crisis, with their harm penetrating to various levels, including water, soil, and biological systems. In the aquatic environment, heavy metal ions, once introduced into water bodies, rapidly diffuse and accumulate, altering the chemical properties of the water. This inhibits enzyme activity and damages cell structure in aquatic organisms, leading to deformities and death in fish and other aquatic animals, and disrupting the food chain structure of the aquatic ecosystem. Therefore, this solution provides a heavy metal adsorption and purification treatment device for sludge dewatering filtrate. Utility Model Content

[0004] The purpose of this invention is to provide a heavy metal adsorption and purification treatment device for sludge dewatering filtrate. This device aims to address the multi-dimensional environmental pollution crisis that can result from the direct discharge of untreated heavy metals from sludge dewatering filtrate, which can permeate various levels of water, soil, and biological systems. In aquatic environments, heavy metal ions rapidly diffuse and accumulate after entering the water, altering its chemical properties. This inhibits enzyme activity and damages cell structure in aquatic organisms, leading to deformities and death in fish and other aquatic animals, and disrupting the food chain structure of the aquatic ecosystem.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heavy metal adsorption and purification treatment device for sludge dewatering filtrate, comprising a purification tank, wherein an inlet is connected to and installed on the outer wall near the upper end of one end of the purification tank, and an outlet is connected to and installed on the outer wall near the lower end of one end of the purification tank.

[0006] A first sealing strip is adhered to the inner wall of the purification tank near the drain outlet, and a second sealing strip is adhered to the inner wall of the purification tank near the inlet. The outer wall of the second sealing strip is sealed and engaged with the outer wall of the first U-shaped frame, and the outer wall of the first sealing strip is sealed and engaged with the outer wall of the second U-shaped frame. A first filter plate is welded into the first U-shaped frame, and an activated carbon filter layer is installed in the second U-shaped frame.

[0007] In order to ensure that the heavy metals in the sludge dewatering filtrate flowing through the activated carbon filter layer in the purification tank are adsorbed cleanly by the activated carbon filter layer, as the sludge dewatering filtrate heavy metal adsorption and purification treatment device of this utility model, preferably, a side plate is welded on each of the two outer walls of the second U-shaped frame, and a second filter plate is welded between the two side plates on the opposite side.

[0008] The bottom of each of the second filter plates is welded to the surface of a base plate, and one end of each base plate is welded to the bottom outer wall of the corresponding side of the second U-shaped frame.

[0009] The spacing between the two second filter plates is adapted to the size of the activated carbon filter layer.

[0010] In order to ensure that the first filter plate and the activated carbon filter layer can be stably installed in the corresponding first U-shaped frame and second U-shaped frame during use, as the sludge dewatering filtrate heavy metal adsorption and purification treatment device of this utility model, preferably, two sets of bearings are symmetrically fixed and embedded on the outer wall of the opening end of the purification tank, and the inner ring of each bearing is fixedly connected to one end of an L-shaped rod, and an adjusting rod is threaded through the surface of the other end of the L-shaped rod.

[0011] A pressure seat is movably mounted on the bottom of the adjusting rod.

[0012] The top of the first filter plate abuts against the bottom of the two pressure seats, and the top of the activated carbon filter layer abuts against the bottom of the other two pressure seats.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Connect the inlet to the outlet of the sludge dewatering filtrate, and connect the purified water pipe to the outlet. During use, the sludge dewatering filtrate enters the purification tank through the inlet. It first flows through the first filter plate, which filters out larger impurities. After initial filtration, the filtrate flows further to the activated carbon filter layer. The activated carbon in this layer adsorbs metals, thus completing the adsorption and purification process for heavy metals in the filtrate. This ensures that the discharged filtrate will not harm the environment or organisms. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.

[0017] Figure 2 This is a top view of the purification tank provided in an embodiment of this application.

[0018] Figure 3 This is a side view of the first U-shaped frame structure provided in an embodiment of this application.

[0019] Figure 4 This is a side view of the second U-shaped frame structure provided in an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the base plate mounting structure provided in an embodiment of this application.

[0021] In the diagram: 1. Purification tank; 11. Bearing; 12. L-shaped rod; 13. Adjusting rod; 14. Pressure seat; 2. Liquid inlet; 3. Liquid outlet; 4. First sealing strip; 5. Second sealing strip; 6. First U-shaped frame; 7. Second U-shaped frame; 71. Side plate; 72. Second filter plate; 73. Bottom plate; 8. First filter plate; 9. Activated carbon filter layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The present invention provides the following technical solution: a heavy metal adsorption and purification treatment device for sludge dewatering filtrate, including a purification tank 1, an inlet 2 connected to the outer wall near the upper end of one end of the purification tank 1, and a drain 3 connected to the outer wall near the lower end of one end of the purification tank 1.

[0024] A first sealing strip 4 is adhered to the inner wall of the purification tank 1 near the drain outlet 3, and a second sealing strip 5 is adhered to the inner wall of the purification tank 1 near the inlet 2. The outer wall of the second sealing strip 5 is sealed and snapped into the outer wall of the first U-shaped frame 6, and the outer wall of the first sealing strip 4 is sealed and snapped into the outer wall of the second U-shaped frame 7. A first filter plate 8 is welded into the first U-shaped frame 6, and an activated carbon filter layer 9 is installed in the second U-shaped frame 7.

[0025] During use, the sludge dewatering filtrate enters the purification tank 1 through the inlet 2, and then the purified sludge dewatering filtrate is discharged through the outlet 3. In the purification tank 1, the sludge dewatering filtrate is initially treated by the first filter plate 8. The initially treated sludge dewatering filtrate flows through the activated carbon filter layer 9, where the activated carbon absorbs the heavy metals inside.

[0026] Preferably, a side plate 71 is welded to each of the two outer walls of the second U-shaped frame 7, and a second filter plate 72 is welded between the two side plates 71 on the opposite side;

[0027] The bottom of each second filter plate 72 is welded to the surface of a base plate 73, and one end of each base plate 73 is welded to the corresponding bottom outer wall of the second U-shaped frame 7.

[0028] The spacing between the two second filter plates 72 is adapted to the size of the activated carbon filter layer 9.

[0029] In practical use, the two sides of the second U-shaped frame 7 are connected to the corresponding second filter plate 72 through the corresponding side plate 71 and bottom plate 73. Since the connection ends of the second filter plate 72 and the side plate 71 and bottom plate 73 are all connected by welding, this can prevent the sludge dewatering filtrate that has not been treated by the activated carbon filter layer 9 from flowing directly to the discharge port 3 for discharge.

[0030] Preferably, two sets of bearings 11 are symmetrically fixed and fitted on the outer wall of the opening end of the purification tank 1. The inner ring of each bearing 11 is fixedly connected to one end of an L-shaped rod 12, and an adjusting rod 13 is threaded through the surface of the other end of the L-shaped rod 12.

[0031] A pressure seat 14 is movably mounted on the bottom of the adjusting rod 13.

[0032] In practical use, the bottom of the adjusting rod 13 has a ball that is movably fitted into the pressure seat 14. When the adjusting rod 13 rotates, this structure prevents the pressure seat 14 from rotating with it. This effectively presses the pressure seat 14 onto the top of the corresponding first filter plate 8 and activated carbon filter layer 9. In use, this structure effectively enhances the sealing stability at the connection between the first U-shaped frame 6 and the second U-shaped frame 7 and the first sealing strip 4 and the second sealing strip 5.

[0033] Preferably, the top of the first filter plate 8 abuts against the bottom of the two pressure seats 14, and the top of the activated carbon filter layer 9 abuts against the bottom of the other two pressure seats 14.

[0034] In practical use, the first U-shaped frame 6 and the second U-shaped frame 7 are sealed and connected with the corresponding first sealing strip 4 and the second sealing strip 5. Then, the activated carbon filter layer 9 is installed between the two second filter plates 72 of the second U-shaped frame 7. After installation, the adjusting rod 13 is adjusted downward, so that the corresponding pressure seat 14 presses against the top of the corresponding first filter plate 8 and the activated carbon filter layer 9.

[0035] Next, connect inlet 2 to outlet 3 of the sludge dewatering filtrate, and connect outlet 3 to the purified water pipe. During use, the sludge dewatering filtrate enters the purification tank 1 through inlet 2. The filtrate first flows through the first filter plate 8, which filters out larger impurities. After initial filtration, the filtrate flows further to the activated carbon filter layer 9. As the filtrate passes through the activated carbon filter layer 9, the activated carbon adsorbs the metals in the filtrate, thus completing the adsorption and purification treatment of heavy metals in the filtrate.

[0036] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sludge dewatering filtrate heavy metal adsorption and purification treatment device, comprising a purification tank (1), characterized in that, The purification tank (1) one end near the upper end of the outer wall of the liquid inlet (2) is installed, the purification tank (1) one end near the lower end of the outer wall of the liquid outlet (3) is installed; The inner wall of the purification tank (1) is close to the inner wall of the first sealing strip (4) of the liquid outlet (3) one end, the inner wall of the purification tank (1) is close to the inner wall of the second sealing strip (5) of the liquid inlet (2) one end, the outer wall of the second sealing strip (5) is sealed with the outer wall of the first U-shaped frame (6), the outer wall of the first sealing strip (4) is sealed with the outer wall of the second U-shaped frame (7), the first U-shaped frame (6) is welded with the first filter plate (8), the second U-shaped frame (7) is installed with the activated carbon filter layer (9).

2. The sludge dewatering filtrate heavy metal adsorption and purification treatment device according to claim 1, characterized in that: The outer wall of the second U-shaped frame (7) is welded with a side plate (71), and the outer wall of the second U-shaped frame (7) is welded with a side plate (71).

3. The sludge dewatering filtrate heavy metal adsorption and purification treatment device according to claim 2, characterized in that: The bottom of each second filter plate (72) is welded with the surface of a bottom plate (73), and one end of each bottom plate (73) is welded with the corresponding side bottom outer wall of the second U-shaped frame (7).

4. The sludge dewatering filtrate heavy metal adsorption and purification treatment device according to claim 2, characterized in that: The spacing between the two second filter plates (72) is matched with the size of the activated carbon filter layer (9).

5. The sludge dewatering filtrate heavy metal adsorption and purification treatment device according to claim 1, characterized in that: The outer wall of the opening end of the purification tank (1) is symmetrically fixed with two groups of bearings (11), the inner circle of each bearing (11) is fixedly connected with one end of the L-shaped rod (12), and the surface of the other end of the L-shaped rod (12) is screwed through the adjusting rod (13).

6. The sludge dewatering filtrate heavy metal adsorption and purification treatment device according to claim 5, characterized in that: The bottom of the adjusting rod (13) is movably installed with a pressing seat (14).

7. The sludge dewatering filtrate heavy metal adsorption and purification treatment device according to claim 1, characterized in that: The top of the first filter plate (8) abuts against the bottom of the two pressing seats (14), and the top of the activated carbon filter layer (9) abuts against the bottom of the other two pressing seats (14).

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