Advanced oxidation advanced treatment reactor

Abstract

The utility model relates to the technical field of reactors, and discloses an advanced oxidation advanced treatment reactor which comprises a catalytic oxidation tower body, two photocatalytic channels are arranged on one side of the catalytic oxidation tower body, a jet flow circulating pump is installed on one side of the catalytic oxidation tower body through a pipeline, an ozone feeding device is arranged outside the jet flow circulating pump, and the ozone feeding device is connected with the catalytic oxidation tower body through a pipeline. One side of the jet circulating pump is connected with an ozone generator through a pipeline, the other end of the jet circulating pump is connected with a water supply pump through a pipeline, one side of the water supply pump is provided with an acid dosing device, and the water supply pump is connected to one side of the catalytic oxidation tower body through a pipeline. According to the device disclosed by the utility model, a gas oxidizing agent, a liquid oxidizing agent and ultraviolet light are adopted for catalytic reaction, and salt ions and metal ions are not brought in in the whole process, so that salt and pollution plugging factors are prevented from being increased for a subsequent filtering system; ultraviolet light catalysis and a composite oxidation system are combined, and generation of free radicals is enhanced through the ultraviolet light catalysis.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, and in particular to an advanced oxidation deep treatment reactor. Background Technology

[0002] The residual recalcitrant organic matter in raw water supply, industrial wastewater, and chemical wastewater containing recalcitrant micropollutants has a serious impact on the reuse of water resources. These substances are difficult to remove through conventional treatment processes and will remain in water bodies for a long time, not only reducing water quality but also posing potential threats to human health and the ecological environment.

[0003] Currently, traditional coagulation sedimentation and sand filtration methods cannot remove these micro-pollutants. With the development and application of membrane technology, although the problem of regeneration has been solved, the presence of such micro-pollutants often leads to low recovery rates of membrane filtration systems, frequent cleaning, and serious damage to the lifespan of membrane modules.

[0004] This patent addresses the issue that treated water sources and industrial wastewater still contain long-chain, cyclic, and other recalcitrant organic compounds. To resolve this problem, an advanced oxidation deep treatment reactor is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this invention provides an advanced oxidation deep treatment reactor, which aims to improve the problem of treating recalcitrant organic matter in water supply sources and industrial wastewater effluent in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An advanced oxidation deep treatment reactor includes a catalytic oxidation tower. Two photocatalytic channels are provided on one side of the catalytic oxidation tower. A jet pump is installed on one side of the catalytic oxidation tower via a pipe. An ozone dosing device is installed outside the jet pump. An ozone generator is connected to one side of the jet pump via a pipe. A water supply pump is connected to the other end of the jet pump via a pipe. An acid dosing device is provided on one side of the water supply pump. The water supply pump is connected to one side of the catalytic oxidation tower via a pipe. An acid dosing device, an alkali dosing device, and a sodium hypochlorite oxidant dosing device are respectively installed on the pipes on one side of the catalytic oxidation tower. A catalytic oxidation tower vent is fixedly connected to the bottom of the catalytic oxidation tower. A water distribution pipe is fixedly connected to the inner wall of the catalytic oxidation tower. Multiple jet water distributors are fixedly connected to the outside of the water distribution pipe.

[0008] As a further description of the above technical solution:

[0009] The top of the catalytic oxidation tower is equipped with a solidified catalyst dosing port, and the outside of the catalytic oxidation tower is fixedly connected with a catalyst discharge port;

[0010] As a further description of the above technical solution:

[0011] A pH detection probe and a redox potential detection probe are installed inside the catalytic oxidation tower body.

[0012] As a further description of the above technical solution:

[0013] The photocatalytic channel includes an ultraviolet photocatalytic channel. A pressure vessel shell is provided on one side of the ultraviolet photocatalytic channel. An ultraviolet lamp is installed inside the pressure vessel shell. A lamp tube fixing end plate is fixedly connected to one side of the pressure vessel shell. An inlet flange is fixedly connected to one side of the bottom of the pressure vessel shell. An outlet flange is fixedly connected to the other side of the bottom of the pressure vessel shell.

[0014] As a further description of the above technical solution:

[0015] One side of the inlet flange is connected to one side of the ozone generator, and one side of the outlet flange is connected to the water distribution pipe.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, gaseous oxidant, liquid oxidant, and ultraviolet photocatalytic reaction are used. No salt ions or metal ions are introduced during the entire process, thus avoiding the addition of salt and clogging factors to the subsequent filtration system. The combination of ultraviolet photocatalysis and composite oxidation system enhances the generation of free radicals, inhibits the influence of ions, and helps to promote ring opening and chain breaking, thereby improving the decomposition effect of organic matter.

[0018] Furthermore, this system is equipped with a circulation pump, with a flow rate matched to the catalytic oxidation tower velocity of 6–10 m / h. The wastewater undergoes 2–3 cycles of oxidation within the catalytic oxidation tower, and the wastewater retention time (HRT) is determined based on the concentration and molecular structure of recalcitrant pollutants in the raw water. Oxidant and catalyst are added through the circulation pump inlet and outlet, based on the wastewater inflow, circulation frequency, and retention time. Ultraviolet photocatalysis is also employed to facilitate the effective utilization of the composite oxidant and the full catalytic reaction.

[0019] 2. In this utility model, the core function of the solid catalyst in catalyzing ozone oxidation and degradation of organic matter is that the active sites of the catalyst catalyze the generation of free radicals from ozone, and the inactive sites adsorb high molecular organic matter. Under high load or high content of colloidal substances in the raw water, the catalyst is easily deactivated due to coating. Therefore, an automatic catalyst replacement port is set up so that the catalyst can be replenished or replaced without stopping the operation.

[0020] 3. In this utility model, a circulating pump is used to assist in the sewage circulation, which enhances the mixing efficiency of the oxidant and sewage. At the same time, the oxidant is continuously added at a low concentration to improve the reaction efficiency. Secondly, sodium hypochlorite oxidation and pH adjustment agent are added at the inlet of the jet circulating pump. After being stirred by the impeller of the circulating pump, uniform mixing is achieved. Then, it is mixed and reacted with ozone entering through the Venturi tube jet. The local negative pressure of the Venturi tube jet enhances the gas-liquid mixing effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of an advanced oxidation deep treatment reactor proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the ultraviolet lamp in an advanced oxidation deep treatment reactor proposed in this utility model.

[0023] Legend:

[0024] 1. Catalytic oxidation tower body; 2. Photocatalytic channel; 201. Ultraviolet photocatalytic channel; 202. Pressure vessel shell; 203. Ultraviolet lamp; 204. Lamp tube fixing end plate; 205. Inlet flange; 206. Outlet flange; 3. Ozone generator; 4. Acid dosing device; 5. Alkali dosing device; 6. Sodium hypochlorite oxidant dosing device; 7. Jet circulating pump; 8. Water supply pump; 9. Ozone dosing device; 10. Jet water distributor; 11. pH detection probe; 12. Oxidation-reduction potential detection probe; 13. Solidification catalyst dosing port; 14. Catalyst discharge port; 15. Catalytic oxidation tower vent. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1 to 2This utility model provides an embodiment of an advanced oxidation deep treatment reactor, comprising a catalytic oxidation tower 1, which can efficiently degrade pollutants, greatly improving treatment efficiency. Two photocatalytic channels 2 are provided on one side of the catalytic oxidation tower 1. These channels promote the reaction through ultraviolet light, enhancing the degradation effect of organic matter and achieving deep treatment of wastewater. A jet circulation pump 7 is installed on one side of the catalytic oxidation tower 1 via a pipe. The jet circulation pump 7 not only improves the fluidity of the reaction system but also ensures the uniform distribution of the oxidant in the wastewater. An ozone dosing device 9 is installed outside the jet circulation pump 7, which can precisely control the ozone dosage to improve its effect in wastewater treatment. An ozone generator 3 is connected to one side of the jet circulation pump 7 via a pipe. This device can continuously generate ozone, thereby enhancing the reaction's resistance and effectiveness. The other end of the jet circulation pump 7 is connected to a water supply pump 8 via a pipe. The water supply pump 8 ensures a stable water flow throughout the operation of the reactor, helping to maintain treatment efficiency. An acid dosing device 4 is installed on one side of the water supply pump 8. The acid dosing function can adjust the pH value of the water to optimize subsequent chemical reactions. The water supply pump 8 is connected to one side of the catalytic oxidation tower 1 via a pipeline, which facilitates the introduction of pretreated wastewater into the reaction tower. The pipelines on one side of the catalytic oxidation tower 1 are respectively equipped with the acid dosing device 4, the alkali dosing device 5, and the sodium hypochlorite oxidant dosing device 6. These reagent devices can be precisely added according to actual needs, thereby achieving flexible wastewater treatment.

[0027] The bottom of the catalytic oxidation tower body 1 is fixedly connected to a vent 15. The vent design facilitates gas release and system maintenance during the process, ensuring safe operation. A water distribution pipe is fixedly connected to the inner wall of the catalytic oxidation tower body 1. This pipe effectively distributes return water to maintain the uniformity of the reaction environment. Multiple jet water distributors 10 are fixedly connected to the outside of the water distribution pipe. These distributors, through their jet fluid design, improve the contact efficiency between water and the gaseous oxidant. A solidified catalyst dosing port 13 is installed at the top of the catalytic oxidation tower body 1, facilitating the periodic replenishment or replacement of the catalyst in the reactor to maintain its reaction activity. A catalyst discharge port 14 is fixedly connected to the outside of the catalytic oxidation tower body 1, providing convenient and rapid catalyst replacement and ensuring continuous reaction. A pH detection probe 11 is installed inside the catalytic oxidation tower body 1 to monitor the acidity or alkalinity of the reaction solution in real time for dynamic adjustment. A redox potential detection probe 12 is installed inside the catalytic oxidation tower body 1 to ensure monitoring of the redox state in the reaction environment, thereby optimizing reaction conditions.

[0028] The photocatalytic channel 2 includes an ultraviolet photocatalytic channel 201. Ultraviolet photocatalysis can effectively excite oxidants to form free radicals, enhancing the intensity of subsequent reactions and improving treatment efficiency. A pressure vessel shell 202 is installed on one side of the ultraviolet photocatalytic channel 201. This shell effectively houses the ultraviolet lamp 203 and ensures the airtightness of the reaction environment. The ultraviolet lamp 203 is installed inside the pressure vessel shell 202. The wavelength of this lamp is designed specifically for the characteristics of organic matter, enabling better activation of the reaction. A lamp fixing end plate 204 is fixedly connected to one side of the pressure vessel shell 202, ensuring the stability of the lamp and ease of maintenance. An inlet flange 205 is fixedly connected to one side of the bottom of the pressure vessel shell 202. The inlet flange is connected to one side of the ozone dosing device 9, effectively guiding the wastewater flowing through the photocatalytic channel. One side of the outlet flange 206 is connected to a water distribution pipe, ensuring that the photocatalyzed wastewater can be effectively introduced into the subsequent treatment stage, achieving seamless connection.

[0029] Working Principle: First, a jet pump 7 is installed on one side of the reactor to continuously drive the wastewater flow. This design ensures the uniform distribution of oxidants, such as ozone and sodium hypochlorite, in the wastewater. The jet pump 7 is externally connected to an ozone dosing device 9 and an ozone generator 3, enhancing the mixing efficiency of the gas-liquid phase within the reactor. In this way, low-concentration ozone and sodium hypochlorite can fully exert their oxidizing performance when entering the reaction tank. In the photocatalytic channel 2, the light emitted by the ultraviolet lamp 203 excites the oxidant, converting it into active free radicals, thereby further improving the decomposition capacity of organic matter. A pressure vessel shell 202 is installed on one side of the photocatalytic channel 2 to ensure effective ultraviolet light irradiation and improve treatment efficiency. Furthermore, the reactor... The reactor is equipped with an acid dosing device 4, an alkali dosing device 5, and a sodium hypochlorite oxidant dosing device 6. These devices precisely add reagents according to actual needs and optimize the pH value of the reaction environment. The interior of the catalytic oxidation tower 1 is monitored in real time by a pH detection probe 11 and a redox potential detection probe 12 to ensure the stability of the reaction conditions. To further enhance the reaction effect, the contact between the catalyst packing layer inside the catalytic oxidation tower 1 and the wastewater and ozone can increase the reaction time through the turbulence effect. In addition, the catalyst discharge port 14 of the tower is designed so that the catalyst can be replaced without stopping the operation, thereby ensuring the long-term and efficient operation of the reactor. These structural designs together ensure the high efficiency and long-term stability of the system.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An advanced oxidation polishing reactor comprising a catalytic oxidation tower body (1), characterized in that: The both sides of the catalytic oxidation tower body (1) are provided with two photocatalytic channels (2), one side of the catalytic oxidation tower body (1) is provided with a jet circulating pump (7) through a pipeline, the outside of the jet circulating pump (7) is provided with an ozone adding flow device (9), one side of the jet circulating pump (7) is connected with an ozone generator (3) through a pipeline, the other end of the jet circulating pump (7) is connected with a water supply pump (8) through a pipeline, one side of the water supply pump (8) is provided with an acid adding device (4), the water supply pump (8) is connected to one side of the catalytic oxidation tower body (1) through a pipeline, and the pipeline on one side of the catalytic oxidation tower body (1) is respectively provided with an acid adding device (4), an alkali adding device (5) and a sodium hypochlorite oxidant adding device (6), and the bottom of the catalytic oxidation tower body (1) is fixedly connected with a catalytic oxidation tower vent (15), the inner wall of the catalytic oxidation tower body (1) is fixedly connected with a water distribution pipeline, and the outer wall of the water distribution pipeline is fixedly connected with a plurality of jet water distributors (10).

2. The advanced oxidation deep treatment reactor according to claim 1, characterized in that: The top of the catalytic oxidation tower body (1) is provided with a solidification catalyst adding port (13), and the outer wall of the catalytic oxidation tower body (1) is fixedly connected with a catalyst discharge port (14).

3. The advanced oxidation deep treatment reactor according to claim 1, characterized in that: The inside of the catalytic oxidation tower body (1) is provided with a PH detection probe (11), and the inside of the catalytic oxidation tower body (1) is provided with a redox potential detection probe (12).

4. The advanced oxidation deep treatment reactor according to claim 1, characterized in that: The photocatalytic channel (2) comprises an ultraviolet photocatalytic channel (201), one side of the ultraviolet photocatalytic channel (201) is provided with a pressure container shell (202), the inside of the pressure container shell (202) is provided with an ultraviolet lamp (203), one side of the pressure container shell (202) is fixedly connected with a lamp tube fixed end plate (204), one side of the bottom of the pressure container shell (202) is fixedly connected with a water inlet flange (205), and the other side of the bottom of the pressure container shell (202) is fixedly connected with a water outlet flange (206).

5. The advanced oxidation deep treatment reactor according to claim 4, characterized in that: One side of the water inlet flange (205) is connected with one side of the ozone adding flow device (9), and one side of the water outlet flange (206) is connected with the water distribution pipeline.

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