A device for treating water with plasma combined ozone

Abstract

The utility model discloses a device of plasma compound ozone treatment water, the utility model discloses when using, the oxygen in oxygen source enters plasma generator and generates generating oxygen plasma, and oxygen plasma and ozone mix in pipeline mixer, after mixed gas enters high pressure gas dissolving jar with the liquid in the jar and mixes, again through venturi jet device enters each honeycomb ceramic aeration disc to generate nanometer gas bubble in the reaction tower to the effective treatment of sewage to the double application of oxygen plasma and ozone, can effectively improve the treatment efficiency of organic pollutant.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a device for treating water using plasma combined with ozone. Background Technology

[0002] Ozone treatment is a common method in wastewater treatment. In wastewater treatment, the oxidation reaction between ozone and pollutants occurs in two main ways: direct oxidation and indirect oxidation. Direct oxidation refers to the direct chemical reaction between ozone molecules and pollutants; while indirect oxidation involves using technology to decompose ozone, generating hydroxyl radicals, which then react with organic matter in an oxidation reaction.

[0003] The application of oxygen plasma in wastewater treatment is mainly reflected in its strong oxidizing properties, which can effectively degrade organic pollutants and sterilize. At present, oxygen plasma technology and ozone technology are mostly used alone in wastewater treatment. Therefore, we propose a device for treating water by combining plasma and ozone. Utility Model Content

[0004] The purpose of this invention is to provide a device for treating water using plasma combined with ozone, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plasma-ozone composite water treatment device includes a vacuum plasma generator, an ozone generator, a pipe mixer, a nanobubble generator, and a reaction tower. The inlet of the vacuum plasma generator is connected to an oxygen source, and the outlet of the vacuum plasma generator is connected to one inlet of the pipe mixer. An air compressor is installed at the inlet of the ozone generator, and the outlet of the ozone generator is connected to the other inlet of the pipe mixer. The nanobubble generator includes a high-pressure dissolved gas tank and a Venturi jet. The inlet of the high-pressure dissolved gas tank is connected to the outlet of the pipe mixer through a variable frequency air compressor. Multiple honeycomb ceramic aeration discs and baffles are arranged from bottom to top inside the reaction tower. The outlet of the high-pressure dissolved gas tank is connected to each honeycomb ceramic aeration disc through a Venturi jet.

[0007] As a further embodiment of this utility model: the vacuum plasma generator includes a vacuum reaction chamber, the air inlet of the vacuum reaction chamber is connected to an oxygen source through a molecular sieve dryer, and a plasma generator is installed on the vacuum reaction chamber.

[0008] As a further embodiment of this utility model: the vacuum plasma generator also includes an industrial chiller, and a cooling water channel is installed on the plasma generator. The inlet and outlet interfaces of the cooling water channel are connected to the industrial chiller through pipes.

[0009] As a further embodiment of this invention: the outlet of the vacuum reaction chamber is connected to an inlet of the pipeline mixer via a dry vacuum pump unit.

[0010] As a further embodiment of this utility model: a reflux pipe is installed at the bottom of the outer wall of the reaction tower, the water outlet of the reflux pipe is connected to the water inlet of the high-pressure dissolved gas tank, and a circulation pump is installed on the reflux pipe.

[0011] As a further embodiment of this utility model: the pipeline mixer adopts a three-stage spiral blade mixer, and the surface of the spiral blades is coated with an anti-corrosion coating.

[0012] As a further improvement of this utility model, the air outlet diameter of the honeycomb ceramic aeration disc is 15-30μm.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In use, oxygen from the oxygen source enters the plasma generator to generate oxygen plasma. The oxygen plasma and ozone are mixed in the pipeline mixer, and then the mixed gas enters the high-pressure dissolved gas tank and mixes with the liquid in the tank. It then enters each honeycomb ceramic aeration disc through the Venturi jet to generate nanobubbles in the reaction tower, thereby effectively treating the wastewater. Through the dual application of oxygen plasma and ozone, the treatment efficiency of organic pollutants can be effectively improved. Attached Figure Description

[0015] Figure 1 This is a structural block diagram of a plasma-combined ozone water treatment device. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1In this embodiment of the present invention, a device for treating water using plasma composite ozone includes a vacuum plasma generator, an ozone generator, a pipeline mixer, a nanobubble generator, and a reaction tower. The inlet of the vacuum plasma generator is connected to an oxygen source, which can be a liquid oxygen storage tank or an oxygen generator. The outlet of the oxygen source is equipped with a vaporizer heated by steam. The outlet of the vacuum plasma generator is connected to one inlet of the pipeline mixer. The inlet of the ozone generator is equipped with an air compressor, and the outlet of the ozone generator is connected to the other inlet of the pipeline mixer. The nanobubble generator includes a high-pressure dissolved gas tank and a Venturi jet. The inlet of the high-pressure dissolved gas tank is connected to the outlet of the pipeline mixer through a variable frequency air compressor. The reaction tower is equipped with multiple honeycomb ceramic aeration discs and baffles arranged from bottom to top. The outlet of the high-pressure dissolved gas tank is connected to each honeycomb ceramic aeration disc through a Venturi jet. The pore size of the honeycomb ceramic aeration discs is 15-30 μm.

[0018] By adopting the above-described solution, this invention, during use, generates a plasma containing O and O2 after the oxygen in the oxygen source enters the plasma generator. + e - The process involves using oxygen plasma (electron temperature 5-10 eV) and ozone generated by an ozone generator. The oxygen plasma and ozone are then mixed in a pipe mixer at a volume ratio of 1:1.5. The mixed gas then enters a high-pressure dissolved gas tank and mixes with the liquid inside. The mixture is then introduced into each honeycomb ceramic aeration disc through a Venturi jet to generate nanobubbles within the reaction tower. The wastewater to be treated enters through the wastewater inlet at the bottom of the reaction tower and exits through the overflow outlet at the top of the tower, ensuring full contact with the nanobubbles within the tower for effective wastewater treatment. The dual application of oxygen plasma and ozone effectively improves the treatment efficiency of organic pollutants.

[0019] The vacuum plasma generator includes a vacuum reaction chamber. The air inlet of the vacuum reaction chamber is connected to an oxygen source through a molecular sieve dryer. A plasma generator is installed on the vacuum reaction chamber. The plasma generator is powered by a power supply, which can be a medium-frequency power supply (10-100kHz) or a radio frequency power supply (13.56MHz).

[0020] In one embodiment of this utility model, the vacuum plasma generator further includes an industrial chiller. The plasma generator is equipped with a cooling water channel, and the inlet and outlet water interfaces of the cooling water channel are connected to the industrial chiller through pipes. In addition, a water-cooling jacket can also be fixedly installed on the outer wall of the vacuum reaction chamber. By connecting the water-cooling jacket to the industrial chiller, the vacuum reaction chamber can be cooled down.

[0021] By using industrial chillers, cooling water channels, and water-cooled jackets, the vacuum plasma generator can be effectively cooled to ensure its long-term stable operation.

[0022] Specific combination Figure 1 In one embodiment of this utility model, the outlet of the vacuum reaction chamber is connected to an inlet of the pipeline mixer via a dry vacuum pump assembly.

[0023] In addition, in one embodiment of the present invention, a reflux pipe is installed at the bottom of the outer wall of the reaction tower, the water outlet of the reflux pipe is connected to the water inlet of the high-pressure dissolved gas tank, and a circulation pump is installed on the reflux pipe.

[0024] By using a circulating pump, wastewater from the reaction tower can be directed into a high-pressure dissolved gas tank to mix with the mixed gas, thereby reducing the waste of tap water.

[0025] In one embodiment of this utility model, the pipeline mixer is a three-stage helical blade mixer, and the surface of the helical blades is coated with an anti-corrosion coating. Specifically, the three-stage helical blades consist of three sets of 180° staggered helical blades (lead angle 45°), wherein...

[0026] Stage 1: Right-handed blades (100mm lead, 3mm thickness), used to divide high-speed airflow into spiral fine streams;

[0027] Stage 2: Left-handed blades (80mm lead, 2.5mm thickness) generate reverse vortices to enhance molecular diffusion;

[0028] Stage 3: Right-handed blades (lead 60mm, thickness 2mm) eliminate concentration gradients and achieve nanoscale mixing.

[0029] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A device for treating water using plasma combined with ozone, characterized in that: The system includes a vacuum plasma generator, an ozone generator, a pipe mixer, a nanobubble generator, and a reaction tower. The inlet of the vacuum plasma generator is connected to an oxygen source, and the outlet of the vacuum plasma generator is connected to one inlet of the pipe mixer. The inlet of the ozone generator is equipped with an air compressor, and the outlet of the ozone generator is connected to the other inlet of the pipe mixer. The nanobubble generator includes a high-pressure dissolved gas tank and a Venturi jet. The inlet of the high-pressure dissolved gas tank is connected to the outlet of the pipe mixer through a variable frequency air compressor. The reaction tower has multiple honeycomb ceramic aeration discs and baffles arranged from bottom to top. The outlet of the high-pressure dissolved gas tank is connected to each honeycomb ceramic aeration disc through a Venturi jet.

2. The device for treating water using plasma combined with ozone according to claim 1, characterized in that: The vacuum plasma generator includes a vacuum reaction chamber, the air inlet of which is connected to an oxygen source via a molecular sieve dryer, and a plasma generator is installed on the vacuum reaction chamber.

3. The device for treating water using plasma combined with ozone according to claim 2, characterized in that: The vacuum plasma generator also includes an industrial chiller. The plasma generator is equipped with a cooling water channel, and the inlet and outlet ports of the cooling water channel are connected to the industrial chiller through pipes.

4. The device for treating water using plasma combined with ozone according to claim 2, characterized in that: The outlet of the vacuum reaction chamber is connected to an inlet of the pipeline mixer via a dry vacuum pump unit.

5. The device for treating water using plasma combined with ozone according to claim 1, characterized in that: A reflux pipe is installed at the bottom of the outer wall of the reaction tower. The outlet of the reflux pipe is connected to the inlet of the high-pressure dissolved gas tank. A circulation pump is installed on the reflux pipe.

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