Automatic high-flux calcium peroxide photocatalysis sewage sterilization system

Abstract

The utility model relates to an automatic high-flux calcium peroxide photocatalytic sewage sterilization system which comprises a microfiltration membrane interception pipe, a solid powder feeder, an advanced oxidation reactor, a solid-liquid separator and a central control end, the advanced oxidation reactor is provided with a light-transmitting area, a light source is mounted in the light-transmitting area, and a stirrer is arranged in the advanced oxidation reactor; the advanced oxidation reactor is also provided with a liquid inlet, a feeding hole and a liquid outlet; the liquid inlet is connected with the water outlet side of the microfiltration membrane interception pipe; the feeding hole is connected with a solid powder feeder; the liquid outlet is connected with the solid-liquid separator, and the central control end is in communication connection with the solid powder feeder and the liquid outlet valve. The utility model provides a sewage sterilization system which is environment-friendly, safe and efficient and can be used for efficiently sterilizing sewage.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to an automated high-throughput calcium peroxide photocatalytic sewage sterilization system. Background Art

[0002] Currently, wastewater sterilization systems widely used in the water treatment industry, such as ultraviolet (UV), chlorine, chloramine, and ozone, can effectively control microbial pathogens. However, as the concept of green and healthy living becomes increasingly popular, the shortcomings of existing wastewater sterilization systems in terms of safety, environmental friendliness, and stability are gradually being rejected. After water is disinfected using chlorine-containing compounds such as chlorine and chloramine, harmful disinfection byproducts and disinfectant residues often remain in the water, posing a threat to human health and safety and potentially causing pathogens to develop drug resistance. In ozone-based wastewater sterilization systems, excessive use of ozone can pollute the environment and react with organic matter in wastewater, causing secondary pollution. Furthermore, ozone sterilization systems have high investment and operating costs. Ultraviolet (UV) wastewater sterilization systems cannot treat highly turbid water due to the poor penetration of UV rays into it. Furthermore, disinfection is incomplete, resulting in ineffective and stable sterilization, and unable to ensure water quality safety.

[0003] Calcium peroxide, a stable solid inorganic peroxide, has a strong ability to inactivate pathogenic microorganisms because it can release a variety of active substances, such as calcium hydroxide, hydrogen peroxide, negative oxygen ions, and hydroxyl free radicals, in a humid environment. The sterilization process is safe, environmentally friendly, and produces no toxic byproducts. Therefore, calcium peroxide wastewater sterilization systems are an ideal candidate to replace existing wastewater sterilization systems. However, existing calcium peroxide wastewater sterilization systems are immature, with slow wastewater treatment speeds, long treatment times, low efficiency, and a low degree of automation.

[0004] In summary, it is necessary to provide a sewage sterilization system that is environmentally friendly, safe and efficient. Utility Model Content

[0005] (1) Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an automated high-throughput calcium peroxide photocatalytic sewage sterilization system, which solves the problems of poor environmental protection, safety and high efficiency of the prior art.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned object, the utility model provides an automated high-throughput calcium peroxide photocatalytic wastewater sterilization system, comprising: a microfiltration membrane interception tube, a solid powder feeder, an advanced oxidation reactor, a solid-liquid separator, and a central control terminal; the advanced oxidation reactor is provided with a light-transmitting area, a light source is installed in the light-transmitting area, and an agitator is provided inside the advanced oxidation reactor; the advanced oxidation reactor is also provided with a liquid inlet, a feed inlet, and a liquid outlet;

[0009] The liquid inlet is connected to the water outlet side of the microfiltration membrane retention tube; the feed inlet is connected to the solid powder feeder; the liquid outlet is connected to the solid-liquid separator, and the central control end is communicated with the solid powder feeder and the liquid outlet valve respectively.

[0010] According to a preferred embodiment of the present utility model, the water outlet side of the microfiltration membrane retention tube is connected to the liquid inlet of the advanced oxidation reactor through a liquid pump; a water outlet and a slag outlet are provided on the solid-liquid separator; liquid level sensors are also provided in the advanced oxidation reactor and the solid-liquid separator respectively; and the central control terminal is communicatively connected to the liquid pump and the liquid level sensor respectively.

[0011] According to a preferred embodiment of the present invention, the advanced oxidation reactor is a hollow cylindrical structure, the light-transmitting area of ​​the advanced oxidation reactor is made of light-transmitting material or the entire advanced oxidation reactor is made of light-transmitting material, and the interior of the advanced oxidation reactor is coated with a polypropylene coating.

[0012] According to a preferred embodiment of the present invention, four light-transmitting areas are provided on the advanced oxidation reactor, and a light source is installed in each light-transmitting area; the light source is communicatively connected to the central control terminal, and the light source is a visible light lamp.

[0013] According to a preferred embodiment of the present invention, electromagnetic flowmeters are respectively provided at the microfiltration membrane retention tube, the liquid inlet, the feed inlet, the liquid outlet and the water outlet, and the electromagnetic flowmeters are respectively communicatively connected to the central control terminal.

[0014] According to a preferred embodiment of the present invention, in the microfiltration membrane retention tube, the pore size of the microfiltration membrane is 0.4-1 μm.

[0015] According to a preferred embodiment of the present invention, the agitator is a paddle agitator, a turbine agitator or a ribbon agitator, and the agitator is communicatively connected to the central control terminal.

[0016] According to a preferred embodiment of the present invention, the solid-liquid separator is a horizontal screw centrifuge, a disc centrifuge, a tubular centrifuge or a flat plate centrifuge, and the solid-liquid separator is communicatively connected to the central control terminal.

[0017] According to a preferred embodiment of the present utility model, all or part of the liquid pump, solid powder feeder, solid-liquid separator, stirrer, light source, liquid outlet valve, liquid level sensor and electromagnetic flowmeter are communicatively connected to the central control end.

[0018] (3) Beneficial effects

[0019] The beneficial effects of the utility model are as follows: the automated high-throughput calcium peroxide photocatalytic sewage sterilization system of the utility model adopts calcium peroxide as the core and combines photocatalytic technology. Compared with the existing technology, the calcium peroxide used in the utility model does not produce toxic by-products before and after the photocatalytic sterilization process, is environmentally friendly, and meets modern environmental protection requirements; utilizes microfiltration membrane filtration and the photocatalytic effect of calcium peroxide to achieve efficient and rapid inactivation of pathogenic microorganisms in sewage, ensures water quality safety and treatment speed, and ensures the safety and efficiency of the disinfection process; uses the central control terminal to control the water inlet, material addition and water outlet of the sewage sterilization system of the utility model, realizes automated intelligent operation, reduces labor costs, further improves treatment efficiency, and meets the requirements of making the sewage sterilization system environmentally friendly, safe, and efficient.

[0020] Furthermore, this automated high-throughput calcium peroxide photocatalytic wastewater sterilization system utilizes a central control terminal to intelligently control the light source, mixer, and solid-liquid separator within the system, achieving fully automated intelligent operation while further reducing energy consumption. The central control terminal also enables real-time flow monitoring, facilitating data logging and troubleshooting. Furthermore, signals can be used to connect the central control terminal to various components of the wastewater sterilization system, facilitating integrated or mobile operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic plan view of an embodiment of the automated high-throughput calcium peroxide photocatalytic wastewater sterilization system of the present utility model;

[0022] Figure 2 It is a plan view of another embodiment of the automated high-throughput calcium peroxide photocatalytic wastewater sterilization system of the present utility model.

[0023] [Description of Reference Numerals]

[0024] 1-microfiltration membrane retention tube; 2-liquid pump; 3-solid powder feeder; 4-advanced oxidation reactor;

[0025] 5-solid-liquid separator; 6-central control terminal; 7-light transmission area; 8-agitator; 9-light source;

[0026] 10-liquid inlet; 11-feeding port; 12-liquid outlet; 13-water outlet; 14-slag outlet;

[0027] 15-first liquid level sensor; 16-second liquid level sensor; 17-first electromagnetic flowmeter;

[0028] 18-second electromagnetic flowmeter; 19-third electromagnetic flowmeter; 20-fourth electromagnetic flowmeter;

[0029] 21-Fifth electromagnetic flowmeter. DETAILED DESCRIPTION

[0030] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0031] Example 1

[0032] like Figure 1 As shown, Example 1 of the present invention provides an automated high-throughput calcium peroxide photocatalytic wastewater sterilization system, comprising: a microfiltration membrane retention tube 1, a liquid pump 2, a solid powder feeder 3, an advanced oxidation reactor 4, a solid-liquid separator 5, and a central control terminal 6. The advanced oxidation reactor 4 is a hollow cylindrical structure, preferably made of glass or other light-conducting materials.

[0033] A light source 9 is mounted on the advanced oxidation reactor 4, and an agitator 8 is provided within the advanced oxidation reactor 4. Preferably, the advanced oxidation reactor 4 is provided with a light-transmitting region 7 for the lamp tube. This region 7 is a recessed groove formed inwardly toward the center of the hollow cylindrical structure, and the light source 9 is mounted within this region. Because the advanced oxidation reactor 4 is made of glass or other light-transmitting materials in the light-transmitting region 7, the light source 9 can illuminate the interior of the advanced oxidation reactor 4 to provide photocatalytic energy. Light source 9 is disposed externally to the advanced oxidation reactor 4, facilitating connection and maintenance of the light source 9 without requiring special waterproof materials.

[0034] The advanced oxidation reactor 4 is also equipped with a liquid inlet 10, a feed inlet 11, and a liquid outlet 12. The liquid inlet 10 is connected to the liquid pump 2; the feed inlet 11 is connected to the solid powder feeder 3; and the liquid outlet 12 is connected to the solid-liquid separator 5. The microfiltration membrane retention tube 1 is connected to the liquid pump 2. The central control terminal 6 is communicatively connected to the liquid pump 2, the solid powder feeder 3, the valve of the liquid outlet 12, the light source 9, and the drive device of the agitator 8. The solid-liquid separator 5 is equipped with a water outlet 13 and a slag outlet 14. A first liquid level sensor 15 is also installed in the advanced oxidation reactor 4 and the solid-liquid separator 5, and is communicatively connected to the central control terminal 6. The central control terminal 6 coordinates the working parameters of the liquid pump 2, the calcium peroxide feeding speed of the solid powder feeder 3, the working parameters of the light source 9 (switch and power), the working parameters of the agitator 8 (start and stop and power), and the liquid discharge speed of the liquid outlet 12, so that their working parameters match each other, avoid problems such as overload operation or insufficient operating power, and achieve the technical purpose of saving energy, ensuring sewage sterilization effect and protecting equipment.

[0035] like Figure 1In the illustrated sewage sterilization system, microfiltration membrane retention tube 1 forms the first stage of the system. After sewage passes through microfiltration membrane retention tube 1, some pathogens and suspended solids are retained by the membrane, reducing the reaction time of the sewage in the advanced oxidation reactor 4 and improving the treatment throughput of the sewage sterilization system. After passing through microfiltration membrane retention tube 1, the sewage is pumped into liquid pump 2. After passing through liquid pump 2, the sewage enters the advanced oxidation reactor 4 through liquid inlet 10. Simultaneously, as the sewage enters the advanced oxidation reactor 4 through liquid inlet 10 via liquid pump 2, a solid powder feeder 3 adds calcium peroxide powder into the advanced oxidation reactor 4 through feed inlet 11. Light source 9 illuminates the sewage, sterilizing it through the photocatalytic reaction of the calcium peroxide. Agitator 8 stirs the sewage, ensuring thorough mixing of the calcium peroxide powder and the sewage, accelerating sterilization. When the central control terminal 6 detects that the water level in the advanced oxidation reactor 4 has reached a predetermined level via a first liquid level sensor 15 in the advanced oxidation reactor 4, it shuts off liquid pump 2 and solid powder feeder 3, ending the liquid and calcium peroxide feeds and allowing sterilization to continue. After the sterilization process completes a predetermined time, the central control terminal 6 controls the valve at the liquid outlet 12 of the advanced oxidation reactor 4 to open, allowing the sterilized wastewater to enter the solid-liquid separator 5 for centrifugation. During the centrifugation process, the central control terminal 6 detects the real-time water level within the solid-liquid separator 5 using a second liquid level sensor 16 within the solid-liquid separator 5 and regulates the water output from the liquid outlet 12 based on the real-time water level. After centrifugation in the solid-liquid separator 5, sterilized water and solid waste residue are produced. Calcium peroxide can be recovered from the solid waste residue and reused.

[0036] Preferably, the inside of the advanced oxidation reactor 4 is coated with a polypropylene coating or other transparent wear-resistant material coating to increase the wear resistance of the inner wall of the advanced oxidation reactor 4.

[0037] Preferably, in the microfiltration membrane retention tube 1 , the pore size of the microfiltration membrane is 0.4-1 μm.

[0038] Preferably, the agitator 8 is a paddle agitator 8, a turbine agitator 8 or a ribbon agitator 8, and the agitator 8 is connected to the central control terminal 6; the solid-liquid separator 5 is a horizontal screw centrifuge, a disc centrifuge, a tubular centrifuge or a plate centrifuge.

[0039] The light-transmitting area 7 is a groove that is recessed from the surface of the advanced oxidation reactor 4 to the middle of the advanced oxidation reactor 4. The groove extends axially or radially along the advanced oxidation reactor 4. At least one light source 9 is provided in the groove, and the light source 9 is a visible light lamp tube. The radial extension includes radial extension along the circumferential direction of the outer wall of the calcium peroxide photocatalytic reactor or radial extension in a continuous spiral. When the groove extends radially and in a continuous spiral, a flexible visible light lamp strip can be installed in the groove in a winding manner. A light source 9 is installed in the light-transmitting area 7 outside the advanced oxidation reactor 4. The light source 9 can irradiate the interior of the advanced oxidation reactor 4 to provide photocatalytic energy. The light source 9 is provided outside the advanced oxidation reactor 4 to facilitate connection and maintenance of the light source 9 to the power supply, and does not require special waterproof materials. The groove can shorten the distance from the light source 9 to the sewage inside the advanced oxidation reactor 4, reduce light energy loss, and improve light source utilization efficiency.

[0040] Preferably, if Figure 1 In the wastewater sterilization system shown, the advanced oxidation reactor 4 is provided with four light-transmitting areas 7. Each light-transmitting area 7 is a groove extending axially along the advanced oxidation reactor 4. The advanced oxidation reactor 4 is provided with four grooves evenly distributed on its outer wall. Each light-transmitting area 7 is mounted with a light source 9; the light source 9 is a visible light lamp. The four light sources 9 are spaced apart within the advanced oxidation reactor 4 to provide sufficient illumination within the reactor 4, accelerating the sterilization reaction. The wastewater sterilization system of the present invention can also utilize natural light for photocatalysis.

[0041] Example 2

[0042] like Figure 2 As shown, the utility model embodiment 1 provides an automated high-throughput calcium peroxide photocatalytic wastewater sterilization system, which differs from embodiment 1 mainly in that multiple instruments are added to monitor the entire system in real time. Specifically, Figure 2 As shown, the microfiltration membrane retention tube 1 is also equipped with a first electromagnetic flowmeter 17, a second electromagnetic flowmeter 18 at the liquid inlet 10, a third electromagnetic flowmeter 19 at the feed inlet 11, a fourth electromagnetic flowmeter 20 at the liquid outlet 12, and a fifth electromagnetic flowmeter 21 at the water outlet 13. These electromagnetic flowmeters are all communicatively connected to the central control terminal 6. The central control terminal 6 uses the electromagnetic flowmeters to detect real-time water flow, record treatment status, and verify the normal operation of the treatment system, achieving more precise coordination.

[0043] like Figure 2In the wastewater sterilization system shown, agitator 8 is communicatively connected to central control terminal 6. Central control terminal 6 regulates and controls the agitator 8's rotational speed during the inflow, feeding, and centrifugation of the advanced oxidation reactor 4. Light source 9 is also communicatively connected to central control terminal 6. Central control terminal 6 regulates and controls the light intensity of light source 9 during the inflow, feeding, and centrifugation of the advanced oxidation reactor 4. The solid-liquid separator 5 is also communicatively connected to central control terminal 6. Central control terminal 6 regulates and controls the operation of solid-liquid separator 5 based on the processing status of solid-liquid separator 5. Agitator 8, light source 9, and solid-liquid separator 5 are each communicatively connected to central control terminal 6, allowing adjustments based on the operating phase to further conserve energy.

[0044] The liquid pump 2, solid powder feeder 3, solid-liquid separator 5, the extraction device of the agitator 8, the light source 9, the valve of the liquid outlet 12, the first liquid level sensor 15, the second liquid level sensor 16, and the electromagnetic flowmeter can be separately or partially connected to the central control terminal 6 for communication. Adjustments can be made based on the actual installation and operation requirements of the sterilization system.

[0045] Among them, the directional nouns such as "up", "down", "left", "right", "front", and "back" mentioned in this article are Figure 1 The orientation is referenced.

[0046] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0047] In this utility model, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integrated connections; mechanical or electrical connections; direct or indirect connections through an intermediary; internal communication between two components, or interactions between two components. A person skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances. In this utility model, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0048] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automated high-throughput calcium peroxide photocatalytic wastewater sterilization system, characterized in that: include: A microfiltration membrane interception tube (1), a solid powder feeder (3), an advanced oxidation reactor (4), a solid-liquid separator (5), and a central control terminal (6); the advanced oxidation reactor (4) is provided with a light-transmitting area (7), a light source (9) is installed in the light-transmitting area (7), and an agitator (8) is provided inside the advanced oxidation reactor (4); the advanced oxidation reactor (4) is also provided with a liquid inlet (10), a feed inlet (11), and a liquid outlet (12); The liquid inlet (10) is connected to the water outlet side of the microfiltration membrane retention tube (1); the feed inlet (11) is connected to the solid powder feeder (3); the liquid outlet (12) is connected to the solid-liquid separator (5); and the central control terminal (6) is communicatively connected to the solid powder feeder (3) and the liquid outlet (12) valve respectively.

2. The sewage sterilization system according to claim 1, characterized in that: The water outlet side of the microfiltration membrane retention tube (1) is connected to the liquid inlet (10) of the advanced oxidation reactor (4) through a liquid pump (2); the solid-liquid separator (5) is provided with a water outlet (13) and a slag outlet (14); the advanced oxidation reactor (4) and the solid-liquid separator (5) are also respectively provided with liquid level sensors; the central control terminal (6) is respectively connected to the liquid pump (2) and the liquid level sensor in communication.

3. The sewage sterilization system according to claim 1, characterized in that: The advanced oxidation reactor (4) is a hollow cylindrical structure. The light-transmitting area (7) of the advanced oxidation reactor (4) is made of a light-transmitting material or the entire advanced oxidation reactor (4) is made of a light-transmitting material. The interior of the advanced oxidation reactor (4) is coated with a polypropylene coating.

4. The sewage sterilization system according to claim 1, characterized in that: The advanced oxidation reactor (4) is provided with four light-transmitting areas (7), and a light source (9) is installed in each light-transmitting area (7); the light source (9) is communicatively connected with the central control terminal (6); and the light source (9) is a visible light lamp.

5. The sewage sterilization system according to claim 1, characterized in that: Electromagnetic flowmeters are respectively provided at the microfiltration membrane retention tube (1), the liquid inlet (10), the feed inlet (11), the liquid outlet (12), and the water outlet (13), and the electromagnetic flowmeters are respectively connected to the central control terminal (6) for communication.

6. The sewage sterilization system according to claim 1, characterized in that: In the microfiltration membrane retention tube (1), the pore size of the microfiltration membrane is 0.4-1 μm.

7. The sewage sterilization system according to claim 1, characterized in that: The stirrer (8) is a paddle stirrer, a turbine stirrer or a ribbon stirrer, and the stirrer (8) is communicatively connected to the central control terminal (6).

8. The sewage sterilization system according to claim 1, characterized in that: The solid-liquid separator (5) is a horizontal screw centrifuge, a disc centrifuge, a tubular centrifuge or a flat plate centrifuge, and the solid-liquid separator (5) is communicatively connected to the central control terminal (6).

9. The sewage sterilization system according to claim 2, characterized in that: All or part of the liquid pump (2), solid powder feeder (3), solid-liquid separator (5), stirrer (8), light source (9), liquid outlet (12) valve, liquid level sensor and electromagnetic flowmeter are communicatively connected to the central control terminal (6).

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