Conventional and antibiotic new pollutant removal device for industrial sewage treatment plant

Abstract

The utility model relates to a conventional and antibiotic new pollutant removal device of an industrial sewage treatment plant, which comprises an adjusting tank, an air floatation tank, an aerobic treatment tank and an adsorption tank which are sequentially arranged, the inner cavity of the adjusting tank is divided into a water inlet cavity and a precipitation cavity by a vertical partition plate, the precipitation cavity is communicated with the air floatation tank, a dosing area and an air floatation area are arranged in the air floatation tank, and the aerobic treatment tank is communicated with the adsorption tank. A dosing mechanism is arranged above the dosing area, and an air floatation mechanism is arranged at the bottom of the air floatation area; the dosing area is communicated with the aerobic treatment tank, and a microbial filler is arranged in the aerobic treatment tank; a settling zone, a filtering zone and an adsorption zone are sequentially arranged in the adsorption tank, the settling zone is communicated with the aerobic treatment tank, and an adsorption assembly is arranged in the adsorption zone. According to the utility model, the water discharged from the industrial sewage treatment plant is deeply treated, so that residual particulate matters, oil, suspended matters, organic matters, heavy metals and other pollution components which are difficult to fully remove in the water can be removed, the discharged water of the sewage treatment plant meets related requirements, and the adverse effect on the environment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment facilities, and in particular to a device for removing conventional and new antibiotic pollutants from industrial wastewater treatment plants. Background Technology

[0002] Common pollutants in industrial wastewater include heavy metals (such as lead, mercury, cadmium, and chromium), conventional pollutants like oils and greases, and emerging pollutants. These pollutants are highly toxic to organisms, and even trace amounts can cause serious harm to the environment and ecosystems. Emerging pollutants in industrial wastewater are particularly difficult to remove; these include antibiotics, persistent organic pollutants (POPs), endocrine disruptors (EDCs), and pharmaceuticals and personal care products (PPCPs). Residual conventional and emerging pollutants may enter the aquatic environment through wastewater treatment plant effluent discharges, posing risks to the ecological environment and human health. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device for removing conventional and new antibiotic pollutants from industrial wastewater treatment plants, so as to further treat the water discharged from industrial wastewater treatment plants and reduce the concentration of pollutants.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: a conventional and antibiotic-based new pollutant removal device for industrial wastewater treatment plants, comprising an equalization tank, a flotation tank, an aerobic treatment tank, and an adsorption tank arranged in sequence. The inner cavity of the equalization tank is divided into an inlet chamber and a sedimentation chamber by a vertical partition. The sedimentation chamber is connected to the flotation tank. The flotation tank is provided with a dosing zone and a flotation zone. The sedimentation chamber is connected to the dosing zone. A dosing mechanism is provided above the dosing zone, and a flotation mechanism is provided at the bottom of the flotation zone. The dosing zone is connected to the aerobic treatment tank, which is provided with microbial packing material. The adsorption tank is provided with a sedimentation zone, a filtration zone, and an adsorption zone arranged in sequence. The sedimentation zone is connected to the aerobic treatment tank. The filtration zone is provided with filter media, and the adsorption zone is provided with adsorption components. An outlet is provided at the top of the adsorption zone.

[0005] Furthermore, the dosing mechanism includes a drug storage chamber, a drug discharge port at the bottom of the drug storage chamber, a vertical rotating shaft inside the drug discharge port, a spiral conveying plate on the outer wall of the rotating shaft, and a rotation drive mechanism at the upper end of the rotating shaft; a receiving trough is provided below the drug discharge port, the receiving trough is fixedly connected to the lower end of the rotating shaft, an inclined dosing pipe is provided at the bottom of the receiving trough, and multiple evenly distributed dosing holes are provided at the bottom of the dosing pipe.

[0006] Furthermore, the rotation drive mechanism is a geared motor.

[0007] Furthermore, the filter media comprises multiple particulate filter layers.

[0008] Furthermore, each particle filter layer is placed inside a mesh cage.

[0009] Furthermore, the particle filter layer includes a pebble layer, a gravel layer, and a river sand layer arranged sequentially from the sedimentation zone to the adsorption zone.

[0010] Furthermore, the microbial packing material is a suspended braided packing material.

[0011] Furthermore, there are multiple adsorption components, and each adsorption component includes a positioning frame. The two sides of the positioning frame are provided with a water-permeable positioning layer. The positioning frame and the water-permeable positioning layer form an adsorption cavity, and an adsorbent layer is provided inside the adsorption cavity.

[0012] Furthermore, the adsorbent layer is an activated carbon layer.

[0013] Furthermore, the two sides of the positioning frame are inserted into the side wall of the adsorption pool.

[0014] The beneficial effects of this utility model are: by deeply treating the water discharged from industrial wastewater treatment plants, this utility model can remove pollutants that are difficult to remove completely, such as residual particulate matter, oil, suspended solids, organic matter, heavy metals, and new pollutants, so that the wastewater discharge from the wastewater treatment plant meets the relevant requirements and reduces the adverse impact on the environment. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the dosing facility;

[0017] Figure 3 This is a schematic diagram of the adsorption component;

[0018] Figure reference numerals: 1—Equalization tank; 2—Air flotation tank; 3—Aerobic treatment tank; 4—Adsorption tank; 5—Inlet chamber; 6—Sedimentation chamber; 7—Dosing zone; 8—Air flotation zone; 9—Dosing mechanism; 91—Storage bin; 92—Rotating shaft; 93—Screw conveyor; 94—Rotation drive mechanism; 95—Receiving trough; 96—Dosing pipe; 10—Air flotation mechanism; 11—Microbial packing material; 12—Sedimentation zone; 13—Filtration zone; 14—Adsorption zone; 15—Filter media; 16—Outlet; 17—Positioning frame; 18—Permeable positioning layer; 19—Adsorbent layer. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] This utility model relates to a device for removing conventional and novel antibiotic pollutants from industrial wastewater treatment plants, such as... Figure 1As shown, the system includes an equalization tank 1, a flotation tank 2, an aerobic treatment tank 3, and an adsorption tank 4 arranged in sequence. The inner cavity of the equalization tank 1 is divided into an inlet chamber 5 and a sedimentation chamber 6 by a vertical partition. The sedimentation chamber 6 is connected to the flotation tank 2. The flotation tank 2 is equipped with a dosing zone 7 and a flotation zone 8. The sedimentation chamber 6 is connected to the dosing zone 7. A dosing mechanism 9 is installed above the dosing zone 7, and a flotation mechanism 10 is installed at the bottom of the flotation zone 8. The dosing zone 7 is connected to the aerobic treatment tank 3, and a microbial packing material 11 is installed in the aerobic treatment tank 3. The adsorption tank 4 is equipped with a sedimentation zone 12, a filtration zone 13, and an adsorption zone 14 arranged in sequence. The sedimentation zone 12 is connected to the aerobic treatment tank 3. Filter media 15 is installed in the filtration zone 13, and an adsorption assembly is installed in the adsorption zone 14. An outlet 16 is installed at the top of the adsorption zone 14.

[0021] The equalization tank is used to regulate the effluent flow rate and ensure the stable operation of the entire system. The lower end of the baffle is connected to the bottom of the equalization tank 1, while the upper end of the baffle is lower than the water level in the equalization tank 1, allowing water in the inlet chamber 5 to flow into the sedimentation chamber 6 from above the baffle. The inlet chamber 5 is connected to the drainage pipe of the industrial wastewater treatment plant, and the treated wastewater is discharged into the bottom of the inlet chamber 5. The sedimentation chamber 6 is used to settle the water and remove large particulate impurities.

[0022] The dissolved air flotation (DAF) tank 2 is used to remove residual suspended solids in the water, such as oil and light suspended solids. Specifically, the water discharged from the sedimentation chamber 6 first enters the dosing zone 7, where the dosing mechanism 9 adds flocculant to the water. The suspended solids in the water can adhere to the flocculant. The water after dosing flows to the DAF zone 8, where the DAF mechanism 10 generates a large number of microbubbles at the bottom. These microbubbles carry the flocculant and suspended solids upwards to the surface, forming scum. After DAF treatment, residual suspended solids, oils, large molecular organic matter, pigments, etc., in the water are further removed, reducing the concentration of pollutants in the water. The DAF mechanism 10 can use existing technology.

[0023] In the flotation tank 2, air is introduced into the water to generate microbubbles, which increases the dissolved oxygen content in the water, favoring the survival of aerobic microorganisms. Therefore, the water treated by flotation is introduced into the aerobic treatment tank 3, where microbial packing material 11 is added to provide a habitat for aerobic microorganisms and promote their reproduction. Aerobic microorganisms can decompose some organic compounds, nitrogen, phosphorus, and other pollutants.

[0024] After sedimentation, flotation, and aerobic treatment, the concentration of pollutants in the water is reduced. The remaining pollutants are mainly recalcitrant antibiotics, organic pollutants, and heavy metal ions. Therefore, adsorption treatment is used to remove the remaining pollutants. Sludge is generated in the aerobic treatment tank 3, and it carries the sludge into the adsorption tank 4. Therefore, a sedimentation zone 12 is set up in the adsorption tank 4. The water from the aerobic treatment tank 3 first enters the sedimentation zone 12. After sedimentation, the sludge in the water settles to the bottom of the sedimentation zone 12. Then, the water is further filtered by the filter media 15 in the filtration zone 13 to remove residual sludge and other particulate matter. Finally, in the adsorption zone 14, adsorption components adsorb residual antibiotics, drugs, heavy metals, and other components. After adsorption treatment, the water can be discharged through the outlet 16.

[0025] The dosing mechanism 9 can adopt existing technology. However, to improve the uniformity of dosing, the dosing mechanism 9 of this invention... Figure 2 As shown, the device includes a storage chamber 91 for storing flocculant. Existing flocculant can be used. The storage chamber 91 can be frustum-shaped, with its upper inner diameter larger than its lower inner diameter. A discharge port is located at the bottom of the storage chamber 91, and a vertical rotating shaft 92 is installed inside the discharge port. The upper end of the rotating shaft 92 extends upwards to the upper part of the storage chamber 91. A spiral conveying plate 93 is installed on the outer wall of the rotating shaft 92, with a clearance fit between the spiral conveying plate 93 and the inner wall of the discharge port. A rotation drive mechanism 94 is located at the upper end of the rotating shaft 92, which drives the rotating shaft 92 and the spiral conveying plate 93 to rotate synchronously. A receiving trough 95 is located below the discharge port, allowing the flocculant discharged from the discharge port to fall into the receiving trough 95. The receiving trough 95 can be a circular trough with a sealed bottom and an open top. The receiving trough 95 is fixedly connected to the lower end of the rotating shaft 92. When the rotating shaft 92 rotates, it drives the receiving trough 95 to rotate synchronously. An inclined dosing pipe 96 is fixedly installed at the bottom of the receiving trough 95. The bottom of the dosing pipe 96 has multiple evenly distributed dosing holes. There can be one or more dosing pipes 96. The flocculant in the receiving trough 95 can enter the dosing pipe 96 and slide downwards along the dosing pipe 96. During the sliding process, the flocculant falls into the water through each dosing hole.

[0026] Flocculants are typically in powder form. The particles in powder have friction, resulting in poor flowability and making it difficult to ensure uniform feeding. In this invention, a rotating shaft 92 and a spiral conveyor 93 are used. A rotation drive mechanism 94 drives the shaft 92 and the spiral conveyor 93 to rotate. When the spiral conveyor 93 rotates, it disturbs the surrounding powder, causing it to flow and enter the discharge port. The powder in the discharge port moves downwards under the action of the spiral conveyor 93 and falls into the receiving trough 95, then into the dosing pipe 96. The flocculant in the dosing pipe 96 slides downwards and falls into the water through the dosing hole. Since the dosing pipe 96 and the receiving trough 95 also rotate with the rotating shaft 92, uniform dosing within a certain range can be achieved.

[0027] In this utility model, the rotation drive mechanism 94 is a geared motor.

[0028] The filter media 15 can be made of various existing materials with filtration functions. Preferably, the filter media 15 includes multiple granular filter layers. Granular filter layers are low in cost and have good filtration effect. Each granular filter layer is set in a cuboid mesh box, so that each granular filter layer can be installed and removed independently, facilitating the replacement of the filter media 15 later.

[0029] The particulate filter layer comprises a pebble layer, a gravel layer, and a river sand layer arranged sequentially from the sedimentation zone 12 to the adsorption zone 14. The particle size of the pebble layer, gravel layer, and river sand layer decreases sequentially. Multiple filtrations of water using particulate filter media of different sizes ensure filtration efficiency, and the gaps in the filter media provide space for microorganisms to thrive, further promoting pollutant removal.

[0030] The microbial packing material 11 can be made using existing technology. In this invention, the microbial packing material 11 is a suspended braided packing material. The braided packing material is lightweight and easy to install and replace.

[0031] In this invention, there are multiple adsorption components, and each adsorption component includes a positioning frame 17. Water-permeable positioning layers 18 are provided on both sides of the positioning frame 17. The positioning frame 17 and the water-permeable positioning layers 18 form an adsorption cavity, and an adsorbent layer 19 is disposed within the adsorption cavity. The positioning frame 17 can be a high-strength plastic frame or a metal frame, specifically a rectangular frame. The water-permeable positioning layer 18 can be made of fiber cloth or wire mesh, used to limit the position of the adsorbent. The adsorbent layer 19 can adsorb residual antibiotics, organic matter, heavy metals, pigments, etc., in the water, specifically using granular activated carbon as the adsorbent.

[0032] To facilitate the assembly and disassembly of the adsorption components, the two sides of the positioning frame 17 are inserted into the side walls of the adsorption tank 4. Slots are provided on the two side walls of the adsorption tank 4, and the two sides of the positioning frame 17 can be inserted into the slots. When the adsorbent layer 19 reaches saturation, the adsorption components can be quickly removed.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 device for removing conventional and new antibiotic pollutants from industrial wastewater treatment plants, characterized in that: The system includes a regulating tank (1), a flotation tank (2), an aerobic treatment tank (3), and an adsorption tank (4) arranged sequentially. The inner cavity of the regulating tank (1) is divided into an inlet chamber (5) and a sedimentation chamber (6) by a vertical partition. The sedimentation chamber (6) is connected to the flotation tank (2). The flotation tank (2) is equipped with a dosing zone (7) and a flotation zone (8). The sedimentation chamber (6) is connected to the dosing zone (7). A dosing mechanism (9) is provided above the dosing zone (7). A dosing device (9) is provided at the bottom of the flotation zone (8). Air flotation mechanism (10); the dosing zone (7) is connected to the aerobic treatment tank (3), and the aerobic treatment tank (3) is equipped with microbial packing material (11); the adsorption tank (4) is equipped with a sedimentation zone (12), a filtration zone (13) and an adsorption zone (14) in sequence, the sedimentation zone (12) is connected to the aerobic treatment tank (3), the filtration zone (13) is equipped with filter media (15), the adsorption zone (14) is equipped with an adsorption component, and the top of the adsorption zone (14) is equipped with an outlet (16).

2. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 1, characterized in that: The dosing mechanism (9) includes a drug storage chamber (91), a drug discharge port is provided at the bottom of the drug storage chamber (91), a vertical rotating shaft (92) is provided inside the drug discharge port, a spiral conveying plate (93) is provided on the outer wall of the rotating shaft (92), and a rotation drive mechanism (94) is provided at the upper end of the rotating shaft (92); a receiving trough (95) is provided below the drug discharge port, the receiving trough (95) is fixedly connected to the lower end of the rotating shaft (92), an inclined dosing pipe (96) is provided at the bottom of the receiving trough (95), and a plurality of evenly distributed dosing holes are provided at the bottom of the dosing pipe (96).

3. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 2, characterized in that: The rotation drive mechanism (94) is a geared motor.

4. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 1, characterized in that: The filter media (15) comprises multiple particulate filter layers.

5. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 4, characterized in that: Each particle filter layer is placed inside the mesh cage.

6. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 4, characterized in that: The particle filter layer includes a pebble layer, a gravel layer, and a river sand layer arranged sequentially from the sedimentation zone (12) to the adsorption zone (14).

7. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 1, characterized in that: The microbial packing material (11) is a suspended braided packing material.

8. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 1, characterized in that: The adsorption components are multiple, and each adsorption component includes a positioning frame (17). The two sides of the positioning frame (17) are provided with a water-permeable positioning layer (18). The positioning frame (17) and the water-permeable positioning layer (18) form an adsorption cavity, and an adsorbent layer (19) is provided in the adsorption cavity.

9. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 8, characterized in that: The adsorbent layer (19) is an activated carbon layer.

10. The industrial wastewater treatment plant conventional and antibiotic new pollutant removal device as described in claim 8, characterized in that: The two sides of the positioning frame (17) are inserted into the side wall of the adsorption tank (4).

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