A wastewater harmless degradation device

Abstract

The utility model relates to wastewater treatment device technical field, concretely is a kind of wastewater innocuous degradation device, including mixing pool and biological membrane processing bin, mixing pool top is provided with magnetic powder feed bin and flocculating agent feed bin, motor is fixedly installed at mixing pool top, the output shaft of motor is connected with stirring paddle, the bottom of mixing pool is V-shaped, electromagnet is equipped at the outer side of two inclined surfaces of the bottom of mixing pool, one drain pipe is connected to the bottom of mixing pool side surface, the low point of V-shaped bottom is inclined to one drain pipe, biological membrane processing bin is connected by communicating tube with mixing pool, biological membrane processing bin is equipped with biological filler, the utility model discloses by adding ferroferric oxide powder and flocculating agent to wastewater simultaneously, the magnetic floc of greater density is formed after sufficient mixing, the magnetic field effect of electromagnet and magnetic conducting net is generated, so that magnetic floc is gathered to pool bottom, accelerates precipitation speed, improves solid-liquid separation efficiency.

Description

Technical Field

[0001] This utility model relates to a wastewater treatment device, and more particularly to a wastewater harmless degradation device, belonging to the technical field of wastewater treatment devices. Background Technology

[0002] In the wastewater treatment process, the efficient separation of suspended solids and colloids from wastewater is an important prerequisite for ensuring the smooth progress of subsequent biological treatment. If the separation is insufficient, it will lead to low efficiency of the subsequent biological treatment unit, or even failure to achieve the expected purification effect.

[0003] Currently, the traditional wastewater treatment method usually involves adding flocculants to the wastewater to form flocs from suspended solids and colloids, thereby achieving sedimentation and separation. However, this traditional flocculation sedimentation method has a slow sedimentation rate, and the treatment efficiency is difficult to meet the needs of rapid wastewater treatment. In addition, the generated sludge has a high water content, which increases the difficulty and cost of subsequent sludge treatment. Particulate matter in wastewater is difficult to completely separate, and when it enters the biological treatment unit, it will inhibit the activity of microorganisms and reduce the biodegradation effect.

[0004] Therefore, it is urgent to improve the wastewater harmless degradation device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater harmless degradation device. By simultaneously adding iron oxide powder and flocculant to the wastewater, and after thorough mixing by a stirring paddle, the iron oxide powder can effectively combine with suspended solids and colloids to form denser magnetic flocs. Combined with the magnetic field generated by the electromagnet and magnetic mesh on the outer side of the inclined surface at the bottom of the mixing tank, the magnetic flocs quickly gather to the bottom of the tank, accelerating the sedimentation speed, improving the solid-liquid separation efficiency, and solving the problem of slow sedimentation in traditional methods.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a mixing tank and a biofilm treatment chamber. The top of the mixing tank is equipped with a magnetic powder feeding chamber and a flocculant feeding chamber. A motor is fixedly installed on the top of the mixing tank, and the output shaft of the motor is connected to a stirring paddle. The bottom of the mixing tank is V-shaped, and electromagnets are provided on the outer sides of the two inclined surfaces at the bottom of the mixing tank. A No. 1 sewage pipe is connected to the bottom side of the mixing tank, and the lowest point of the bottom of the V-shape is inclined toward the No. 1 sewage pipe. The biofilm treatment chamber is connected to the mixing tank through a connecting pipe, and biological packing material is provided inside the biofilm treatment chamber.

[0007] Preferably, the stirring paddle is made of polytetrafluoroethylene plate, and the inner wall of the mixing tank is fitted with an anti-adsorption layer.

[0008] Preferably, the magnetic powder feeding hopper is filled with iron oxide powder.

[0009] Preferably, both the magnetic powder feeding hopper and the flocculant feeding hopper are equipped with metering valves at their bottoms, and the connecting pipe is equipped with a valve.

[0010] Preferably, the bottom of the biofilm treatment chamber is provided with an aeration column, which is connected to an external air compressor through a pipe.

[0011] Preferably, a magnetic mesh is fixedly connected to the outer side of the two inclined surfaces at the bottom of the mixing tank, and the electromagnet is in contact with the magnetic mesh.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. By simultaneously adding iron oxide powder and flocculant to the wastewater, and after thorough mixing with a stirring paddle, the iron oxide powder can effectively combine with suspended solids and colloids to form denser magnetic flocs. Combined with the magnetic field generated by the electromagnet and magnetic mesh on the outer side of the inclined surface at the bottom of the mixing tank, the magnetic flocs quickly gather to the bottom of the tank, accelerating the sedimentation rate, improving the solid-liquid separation efficiency, and solving the problem of slow sedimentation in traditional methods. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0016] Figure 2 A schematic diagram of the internal structure of the biofilm treatment chamber provided by this utility model;

[0017] Figure 3 A schematic diagram of the front-facing structure provided by this utility model;

[0018] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the mixing tank provided by this utility model.

[0019] In the diagram, 1. Mixing tank; 2. Biofilm treatment chamber; 3. Magnetic powder feeding chamber; 4. Flocculant feeding chamber; 5. Motor; 6. Agitator; 7. Electromagnet; 8. No. 1 sewage pipe; 9. Connecting pipe; 10. Biological packing material; 11. Anti-adsorption layer; 12. Metering valve; 13. Valve; 14. Aeration column; 15. Magnetic mesh. Detailed Implementation

[0020] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0021] like Figures 1-4 As shown, the wastewater harmless degradation device provided in this embodiment includes a mixing tank 1 and a biofilm treatment chamber 2. A magnetic powder feeding chamber 3 and a flocculant feeding chamber 4 are provided at the top of the mixing tank 1. The magnetic powder feeding chamber 3 is filled with iron oxide powder. A metering valve 12 is provided at the bottom of both the magnetic powder feeding chamber 3 and the flocculant feeding chamber 4. The amount of magnetic powder and flocculant added can be precisely controlled by adjusting the metering valve 12.

[0022] A motor 5 is fixedly installed on the top of the mixing tank 1. The output shaft of the motor 5 is connected to a stirring paddle 6. The stirring paddle 6 is made of polytetrafluoroethylene plate, which has good corrosion resistance and chemical stability. An anti-adsorption layer 11 is attached to the inner wall of the mixing tank 1 to prevent flocs from adsorbing onto the tank wall. The bottom of the mixing tank 1 is V-shaped. A magnetic mesh 15 is fixedly connected to the outer side of the two inclined surfaces at the bottom of the mixing tank 1. An electromagnet 7 is attached to the magnetic mesh 15. When the electromagnet 7 is energized, it generates a magnetic field, which is diffused through the magnetic mesh 15. The lowest point of the V-shaped bottom is inclined toward the No. 1 sewage pipe 8, which facilitates the discharge of the settled sludge through the No. 1 sewage pipe 8.

[0023] The biofilm treatment chamber 2 is connected to the mixing tank 1 via a connecting pipe 9. A valve 13 is installed on the connecting pipe 9 to control the flow rate of sewage into the biofilm treatment chamber 2. The biofilm treatment chamber 2 is equipped with biological packing material 10, and an aeration column 14 is installed at the bottom of the biofilm treatment chamber 2. The aeration column 14 is connected to an external air compressor via a pipe. When the air compressor is working, air is introduced into the biofilm treatment chamber 2 through the aeration column 14 to provide sufficient oxygen for the microorganisms on the biological packing material 10.

[0024] In practice, wastewater enters the mixing tank 1, and ferric oxide powder and flocculant are added through the magnetic powder feeding bin 3 and the flocculant feeding bin 4, respectively. The motor 5 drives the stirring paddle 6 to rotate, which fully mixes the magnetic powder, flocculant and wastewater, so that the suspended solids and colloids combine with the magnetic powder to form magnetic flocs. Then, the electromagnet 7 is activated. Under the action of the magnetic field generated by the electromagnet 7 and the magnetic mesh 15, the magnetic flocs quickly settle to the V-shaped bottom of the mixing tank 1. The sludge is discharged through the No. 1 sewage pipe 8. The treated wastewater enters the biofilm treatment chamber 2 through the valve 13 on the connecting pipe 9. Air is introduced through the aeration column 14. Microorganisms form a biofilm on the biological packing material 10 to carry out biodegradation treatment of wastewater.

[0025] Among them, the polytetrafluoroethylene material of the stirring paddle 6 and the anti-adsorption layer 11 on the inner wall of the mixing tank 1 reduce the adhesion of flocs during the mixing process.

[0026] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0027] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0028] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A wastewater harmless degradation device, characterized in that: The mixture includes a mixing tank (1) and a biofilm treatment chamber (2). The top of the mixing tank (1) is equipped with a magnetic powder feeding chamber (3) and a flocculant feeding chamber (4). A motor (5) is fixedly installed on the top of the mixing tank (1). The output shaft of the motor (5) is connected to a stirring paddle (6). The bottom of the mixing tank (1) is V-shaped. Electromagnets (7) are provided on the outer sides of the two inclined surfaces at the bottom of the mixing tank (1). A first sewage pipe (8) is connected to the bottom of the side of the mixing tank (1). The lowest point of the bottom of the V-shape is inclined toward the first sewage pipe (8). The biofilm treatment chamber (2) is connected to the mixing tank (1) through a connecting pipe (9). The biofilm treatment chamber (2) is equipped with biological packing material (10).

2. The wastewater harmless degradation device according to claim 1, characterized in that: The stirring paddle (6) is made of polytetrafluoroethylene plate, and the inner wall of the mixing tank (1) is fitted with an anti-adsorption layer (11).

3. The wastewater harmless degradation device according to claim 1, characterized in that: The magnetic powder feeding hopper (3) is filled with iron oxide powder.

4. The wastewater harmless degradation device according to claim 1, characterized in that: The bottom of the magnetic powder feeding silo (3) and the flocculant feeding silo (4) are both equipped with metering valves (12), and the connecting pipe (9) is equipped with a valve (13).

5. The wastewater harmless degradation device according to claim 1, characterized in that: The bottom of the biofilm treatment chamber (2) is provided with an aeration column (14), which is connected to an external air compressor through a pipeline.

6. The wastewater harmless degradation device according to claim 1, characterized in that: A magnetic mesh (15) is fixedly connected to the outer side of the two inclined surfaces at the bottom of the mixing tank (1), and the electromagnet (7) is in contact with the magnetic mesh (15).

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