Wastewater treatment system based on combination of solar power generation and advanced oxidation process

Abstract

The utility model discloses a wastewater treatment system based on combination of solar power generation and an advanced oxidation process, and belongs to the technical field of wastewater treatment. The technical problem to be solved by the utility model is to treat wastewater with high efficiency and low cost. The device comprises a solar cell panel, an energy storage device, an energy supply device, an electrochemical oxidation reactor, an electrode plate, a wastewater collecting and conveying device and a wastewater conveying pipeline, the solar cell panel is connected with the energy supply device through a wire, the energy supply device is respectively connected with the energy storage device and the electrode plate through wires, the electrode plate is arranged in the electrochemical oxidation reactor, and the electrochemical oxidation reactor is connected with the wastewater collecting and conveying device through a pipeline. According to the utility model, the solar power generation is combined with the advanced oxidation process, so that the wastewater is effectively treated, and the device can be widely applied to wastewater treatment in the fields of industry, cities and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, and specifically relates to a wastewater treatment system based on the combination of solar power generation and advanced oxidation process. Background Art

[0002] Traditional wastewater treatment methods usually use biological treatment or chemical precipitation, but their treatment effects are limited.

[0003] In recent years, advanced oxidation processes have been widely used as an efficient wastewater treatment method, but processes such as electro-Fenton, electrocatalytic oxidation, and electro-flocculation require a lot of electricity, so the energy consumption is large and the cost is high. Therefore, how to combine renewable energy such as solar energy with advanced oxidation processes to achieve efficient and low-cost wastewater treatment is a hot topic in current research. Summary of the invention

[0004] A brief overview of the present invention is given below in order to provide a basic understanding of certain aspects of the present invention. It should be understood that this overview is not an exhaustive overview of the present invention. It is not intended to identify key or important parts of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0005] The problem to be solved by the utility model is to achieve efficient and low-cost wastewater treatment, and proposes a wastewater treatment system based on the combination of solar power generation and advanced oxidation process.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A wastewater treatment system based on the combination of solar power generation and advanced oxidation process, comprising a solar panel, an energy storage device, an energy supply device, an electrochemical oxidation reactor, an electrode plate, a wastewater collection and transportation device, and a wastewater transportation pipeline;

[0008] The solar cell panel is connected to the energy supply device through wires, the energy supply device is respectively connected to the energy storage device and the electrode plate through wires, the electrode plate is arranged in the electrochemical oxidation reactor, and the electrochemical oxidation reactor is connected to the wastewater collection and transportation device through pipelines.

[0009] Furthermore, the energy storage device is used to store the electric energy generated by the solar panel, and the energy storage device is one of a lithium-ion battery, a sodium-ion battery or a flow battery.

[0010] Furthermore, the energy supply device is used to receive electrical energy generated by solar panels, and the energy supply device is also connected to a municipal power supply.

[0011] Furthermore, the electrochemical oxidation reactor is an electro-Fenton reactor, an electrocatalytic oxidation reactor or an electro-flocculation reactor.

[0012] Furthermore, the number of the electrode plates is 2, and the two electrode plates are located inside the electrochemical oxidation reactor and placed in parallel.

[0013] Furthermore, a sedimentation tank is provided in the wastewater collection and transportation device.

[0014] The beneficial effects of the utility model are:

[0015] The wastewater treatment system based on the combination of solar power generation and advanced oxidation process described in the utility model realizes the effective treatment of wastewater by combining solar power generation and advanced oxidation process. Since solar energy is a renewable energy source, the system reduces energy consumption and reduces the emission of greenhouse gases such as carbon dioxide, which is beneficial to environmental protection. At the same time, through the reasonable design of the energy storage device, it can be ensured that the system can still operate normally through the power supply of the mains in the case of insufficient or no sunlight, thereby improving the stability and reliability of the system. The wastewater treatment system based on the combination of solar power generation and advanced oxidation process described in the utility model can be widely used in wastewater treatment in industrial, urban and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a wastewater treatment system based on the combination of solar power generation and advanced oxidation process described in the utility model. DETAILED DESCRIPTION

[0017] Hereinafter, exemplary embodiments of the present invention will be described in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the specific goals of the developers, for example, to meet those constraints related to the system and the business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, for those skilled in the art who benefit from the disclosure of the present invention, such development work is merely a routine task.

[0018] It is also necessary to explain here that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0019] In order to further understand the content, features and functions of the utility model, the following specific implementation methods are given as examples, and the attached Figure 1 The detailed instructions are as follows: Specific implementation method one:

[0021] A wastewater treatment system based on the combination of solar power generation and advanced oxidation process, comprising a solar panel 1, an energy storage device 2, an energy supply device 3, an electrochemical oxidation reactor 4, an electrode plate 5, and a wastewater collection and transportation device 6;

[0022] The solar cell panel 1 is connected to the energy supply device 3 through wires, and the energy supply device 3 is respectively connected to the energy storage device 2 and the electrode plate 5 through wires. The electrode plate 5 is arranged in the electrochemical oxidation reactor 4, and the electrochemical oxidation reactor 4 is connected to the wastewater collection and transportation device 6 through pipelines.

[0023] Furthermore, the energy storage device 2 is used to store the electric energy generated by the solar panel 1, and the energy storage device 2 is a lithium-ion battery.

[0024] Furthermore, the energy supply device 3 is used to receive the electric energy generated by the solar panel 1, and the energy supply device 3 is also connected to the municipal power supply;

[0025] Furthermore, the energy supply device 3 is a microgrid energy management system, and its main equipment includes: a solar charge controller, a combiner box, a load controller, a rectifier, and an energy management system, which realizes centralized monitoring, management and automatic control of the entire energy supply system.

[0026] Furthermore, the electrochemical oxidation reactor 4 is an electro-Fenton reactor.

[0027] Furthermore, the number of the electrode plates 5 is two, and the two electrode plates 5 are located inside the electrochemical oxidation reactor 4 and are placed in parallel.

[0028] Furthermore, a sedimentation tank is provided in the wastewater collecting and conveying device 6 , and the wastewater collecting and conveying device 6 is connected to the wastewater conveying pipeline 7 .

[0029] Furthermore, the energy supply device 3 can accept two power sources, the energy storage device 2 and the municipal power grid, and can adjust the output voltage and current according to the needs of the wastewater treatment equipment. When wastewater needs to be treated, the electrochemical oxidation reactor 4 uses electrical energy to electrochemically oxidize the wastewater, and produces active groups such as superoxide free radicals, hydrogen peroxide, and hydroxyl free radicals through the action of electrodes and catalytic materials to degrade organic matter in the water. The electrode plate 5 is arranged in the electrochemical oxidation reactor 4. The wastewater collection and transportation device 6 is used to collect and discharge the treated wastewater.

[0030] Furthermore, the solar panel 1 generates direct current, and the electrochemical oxidation reactor 4 requires direct current, so the entire system does not require an inverter, making the circuit design simpler and the power utilization more efficient.

[0031] Furthermore, solar energy is first used to support the electrochemical oxidation reactor, and a municipal power grid power supply system is set up at the same time. When solar energy is insufficient, the system power consumption can be supplemented to make the system operation more stable.

[0032] Furthermore, the solar panels can be arranged above the pool of the water treatment system and above the office building to save land for the project. The solar panel 1 can be made of solar cell materials such as monocrystalline silicon, polycrystalline silicon, amorphous silicon, etc., and its conversion efficiency, cost and other factors can be selected according to actual needs.

[0033] Furthermore, the energy storage device 2 may adopt energy storage technologies such as lithium-ion batteries and lead-acid batteries, and its capacity, charge and discharge performance, etc. may be selected according to actual needs;

[0034] Furthermore, the electrochemical oxidation reactor 4 is the main body of the water treatment device, which is directly oxidized at the anode / indirectly oxidized by generating free radicals under the action of an external electric field.

[0035] Furthermore, the electro-Fenton reactor is an advanced oxidation technology suitable for the treatment of high-salinity, high-chroma, high-toxic, and difficult-to-biodegrade organic wastewater. It produces H2O2 through the reduction of dissolved oxygen on the cathode surface and reacts with Fe2O2 generated by the external or system. 2+ It catalyzes the conversion of OH·, and then degrades the organic pollutants in the wastewater into carbon dioxide and water.

[0036] The wastewater collection and transportation device 6 is provided with a sedimentation tank for settling suspended matter such as flocs produced in the electrochemical oxidation reactor 4 and collecting and transporting the treated wastewater. At the same time, wastewater treatment technologies such as filters and disinfection can also be used to meet the discharge and reuse standards.

[0037] Furthermore, the wastewater treatment system based on the combination of solar power generation and advanced oxidation process described in this embodiment is suitable for treating organic wastewater with high salinity. High salinity can provide excellent conductivity, thereby reducing energy consumption during treatment, especially RO concentrated water. It is also suitable for small domestic sewage treatment systems. Specific implementation method 2:

[0039] A wastewater treatment system based on the combination of solar power generation and advanced oxidation process, comprising a solar panel 1, an energy storage device 2, an energy supply device 3, an electrochemical oxidation reactor 4, an electrode plate 5, and a wastewater collection and transportation device 6;

[0040] The solar cell panel 1 is connected to the energy supply device 3 through wires, and the energy supply device 3 is respectively connected to the energy storage device 2 and the electrode plate 5 through wires. The electrode plate 5 is arranged in the electrochemical oxidation reactor 4, and the electrochemical oxidation reactor 4 is connected to the wastewater collection and transportation device 6 through pipelines.

[0041] Furthermore, the energy storage device 2 is used to store the electric energy generated by the solar panel 1, and the energy storage device 2 is a sodium ion battery.

[0042] Furthermore, the energy supply device 3 is used to receive the electric energy generated by the solar panel 1, and the energy supply device 3 is also connected to the municipal power supply;

[0043] Furthermore, the energy supply device 3 is a microgrid energy management system, and its main equipment includes: a solar charge controller, a combiner box, a load controller, a rectifier, and an energy management system, which realizes centralized monitoring, management and automatic control of the entire energy supply system.

[0044] Furthermore, the electrochemical oxidation reactor 4 is an electrocatalytic oxidation reactor.

[0045] Furthermore, the number of the electrode plates 5 is two, and the two electrode plates 5 are located inside the electrochemical oxidation reactor 4 and are placed in parallel.

[0046] Furthermore, a sedimentation tank is provided in the wastewater collecting and conveying device 6 , and the wastewater collecting and conveying device 6 is connected to the wastewater conveying pipeline 7 .

[0047] Furthermore, the energy supply device 3 can accept two power sources, the energy storage device 2 and the municipal power grid, and can adjust the output voltage and current according to the needs of the wastewater treatment equipment. When wastewater needs to be treated, the electrochemical oxidation reactor 4 uses electrical energy to electrochemically oxidize the wastewater, and produces active groups such as superoxide free radicals, hydrogen peroxide, and hydroxyl free radicals through the action of electrodes and catalytic materials to degrade organic matter in the water. The electrode plate 5 is arranged in the electrochemical oxidation reactor 4. The wastewater collection and transportation device 6 is used to collect and discharge the treated wastewater.

[0048] Furthermore, the solar panel 1 generates direct current, and the electrochemical oxidation reactor 4 requires direct current, so the entire system does not require an inverter, making the circuit design simpler and the power utilization more efficient.

[0049] Furthermore, solar energy is first used to support the electrochemical oxidation reactor, and a municipal power grid power supply system is set up at the same time. When solar energy is insufficient, the system power consumption can be supplemented to make the system operation more stable.

[0050] Furthermore, the solar panels can be arranged above the pool of the water treatment system and above the office building to save land for the project. The solar panel 1 can be made of solar cell materials such as monocrystalline silicon, polycrystalline silicon, amorphous silicon, etc., and its conversion efficiency, cost and other factors can be selected according to actual needs.

[0051] Furthermore, the energy storage device 2 may adopt energy storage technologies such as lithium-ion batteries and lead-acid batteries, and its capacity, charge and discharge performance, etc. may be selected according to actual needs;

[0052] Furthermore, the electrochemical oxidation reactor 4 is the main body of the water treatment device, which is directly oxidized at the anode / indirectly oxidized by generating free radicals under the action of an external electric field.

[0053] Furthermore, an electrocatalytic oxidation reactor is used to decompose pollutants by using catalytically active electrodes at room temperature and pressure. Oxidative electrolysis produces highly oxidizing active substances, which then degrade large molecular pollutants into small molecules. This technology can be divided into direct anodic oxidation and indirect anodic oxidation. The reactor equipment and process of this technology are simple, the reaction requirements are mild, and it has strong practicality.

[0054] The wastewater collection and transportation device 6 is provided with a sedimentation tank for settling suspended matter such as flocs produced in the electrochemical oxidation reactor 4 and collecting and transporting the treated wastewater. At the same time, wastewater treatment technologies such as filters and disinfection can also be used to meet the discharge and reuse standards.

[0055] Furthermore, the wastewater treatment system based on the combination of solar power generation and advanced oxidation process described in this embodiment is suitable for treating organic wastewater with high salinity. High salinity can provide excellent conductivity, thereby reducing energy consumption during treatment, especially RO concentrated water. It is also suitable for small domestic sewage treatment systems. Specific implementation method three:

[0057] A wastewater treatment system based on the combination of solar power generation and advanced oxidation process, comprising a solar panel 1, an energy storage device 2, an energy supply device 3, an electrochemical oxidation reactor 4, an electrode plate 5, and a wastewater collection and transportation device 6;

[0058] The solar cell panel 1 is connected to the energy supply device 3 through wires, and the energy supply device 3 is respectively connected to the energy storage device 2 and the electrode plate 5 through wires. The electrode plate 5 is arranged in the electrochemical oxidation reactor 4, and the electrochemical oxidation reactor 4 is connected to the wastewater collection and transportation device 6 through pipelines.

[0059] Furthermore, the energy storage device 2 is used to store the electric energy generated by the solar panel 1, and the energy storage device 2 is a liquid flow battery.

[0060] Furthermore, the energy supply device 3 is used to receive the electric energy generated by the solar panel 1, and the energy supply device 3 is also connected to the municipal power supply;

[0061] Furthermore, the energy supply device 3 is a microgrid energy management system, and its main equipment includes: a solar charge controller, a combiner box, a load controller, a rectifier, and an energy management system, which realizes centralized monitoring, management and automatic control of the entire energy supply system.

[0062] Furthermore, the electrochemical oxidation reactor 4 is an electrocoagulation reactor.

[0063] Furthermore, the number of the electrode plates 5 is two, and the two electrode plates 5 are located inside the electrochemical oxidation reactor 4 and are placed in parallel.

[0064] Furthermore, a sedimentation tank is provided in the wastewater collecting and conveying device 6 , and the wastewater collecting and conveying device 6 is connected to the wastewater conveying pipeline 7 .

[0065] Furthermore, the energy supply device 3 can accept two power sources, the energy storage device 2 and the municipal power grid, and can adjust the output voltage and current according to the needs of the wastewater treatment equipment. When wastewater needs to be treated, the electrochemical oxidation reactor 4 uses electrical energy to electrochemically oxidize the wastewater, and produces active groups such as superoxide free radicals, hydrogen peroxide, and hydroxyl free radicals through the action of electrodes and catalytic materials to degrade organic matter in the water. The electrode plate 5 is arranged in the electrochemical oxidation reactor 4. The wastewater collection and transportation device 6 is used to collect and discharge the treated wastewater.

[0066] Furthermore, the solar panel 1 generates direct current, and the electrochemical oxidation reactor 4 requires direct current, so the entire system does not require an inverter, making the circuit design simpler and the power utilization more efficient.

[0067] Furthermore, solar energy is first used to support the electrochemical oxidation reactor, and a municipal power grid power supply system is set up at the same time. When solar energy is insufficient, the system power consumption can be supplemented to make the system operation more stable.

[0068] Furthermore, the solar panels can be arranged above the pool of the water treatment system and above the office building to save land for the project. The solar panel 1 can be made of solar cell materials such as monocrystalline silicon, polycrystalline silicon, amorphous silicon, etc., and its conversion efficiency, cost and other factors can be selected according to actual needs.

[0069] Furthermore, the energy storage device 2 may adopt energy storage technologies such as lithium-ion batteries and lead-acid batteries, and its capacity, charge and discharge performance, etc. may be selected according to actual needs;

[0070] Furthermore, the electrochemical oxidation reactor 4 is the main body of the water treatment device, which is directly oxidized at the anode / indirectly oxidized by generating free radicals under the action of an external electric field.

[0071] Furthermore, an electric flocculation reactor is selected to remove pollutants in the wastewater by utilizing the flocculation effect of a large amount of cations generated by the soluble electrode plate 5, which has the advantages of low operating cost, stable treatment effect, small footprint, and easy operation and management.

[0072] The wastewater collection and transportation device 6 is provided with a sedimentation tank for settling suspended matter such as flocs produced in the electrochemical oxidation reactor 4 and collecting and transporting the treated wastewater. At the same time, wastewater treatment technologies such as filters and disinfection can also be used to meet the discharge and reuse standards.

[0073] Furthermore, the wastewater treatment system based on the combination of solar power generation and advanced oxidation process described in this embodiment is suitable for treating organic wastewater with high salinity. High salinity can provide excellent conductivity, thereby reducing energy consumption during treatment, especially RO concentrated water. It is also suitable for small domestic sewage treatment systems. The use of an electric flocculation reactor also has a very good effect on the phosphorus element in domestic sewage.

[0074] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0075] Although the present application has been described above with reference to specific embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various features in the specific embodiments disclosed in the present application may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wastewater treatment system based on solar power generation combined with advanced oxidation process, characterized in that: It comprises a solar cell panel (1), an energy storage device (2), an energy supply device (3), an electrochemical oxidation reactor (4), an electrode plate (5), and a wastewater collection and transportation device (6); The solar cell panel (1) is connected to an energy supply device (3) via electric wires, the energy supply device (3) is respectively connected to an energy storage device (2) and an electrode plate (5) via electric wires, the electrode plate (5) is arranged in an electrochemical oxidation reactor (4), and the electrochemical oxidation reactor (4) is connected to a wastewater collection and transportation device (6) via a pipeline.

2. A wastewater treatment system based on solar power generation combined with advanced oxidation process according to claim 1, characterized in that: The energy storage device (2) is used to store the electric energy generated by the solar cell panel (1), and the energy storage device (2) is one of a lithium ion battery, a sodium ion battery or a liquid flow battery.

3. A wastewater treatment system based on solar power generation combined with advanced oxidation process according to claim 2, characterized in that: The energy supply device (3) is used to receive the electric energy generated by the solar cell panel (1), and the energy supply device (3) is also connected to the municipal power supply.

4. A wastewater treatment system based on solar power generation combined with advanced oxidation process according to claim 3, characterized in that: The electrochemical oxidation reactor (4) is an electro-Fenton reactor, an electrocatalytic oxidation reactor or an electro-flocculation reactor.

5. A wastewater treatment system based on solar power generation combined with advanced oxidation process according to claim 4, characterized in that: The number of the electrode plates (5) is two, and the two electrode plates (5) are located inside the electrochemical oxidation reactor (4) and are placed in parallel.

6. A wastewater treatment system based on solar power generation combined with advanced oxidation process according to claim 5, characterized in that: A sedimentation tank is arranged inside the wastewater collection and transportation device (6), and the wastewater collection and transportation device (6) is connected to a wastewater transportation pipeline (7).

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