AOT water purification equipment

AOT water purification equipment

1、 Technical background
At present, with the continuous development of the economy, water pollution is becoming increasingly serious, and there are more and more trace harmful chemicals such as harmful to human health and environmental hormones in water. The commonly used single water treatment methods - physical, chemical, biological, etc. - are difficult and incomplete to treat. However, hydrogen peroxide or chlorine oxidation both have weak oxidizing ability. How to improve a comprehensive, low-cost, energy-saving and efficient purification system has become an urgent technical problem to be solved.

The overall technical problem that this device aims to solve is to provide a water purification device that is well-designed, low-cost, sturdy, durable, safe and reliable, easy to operate, time-saving, labor-saving, cost-effective, compact in structure, and convenient to use; The detailed technical problems solved and the beneficial effects achieved will be described in the following content and combined with specific implementation methods.

To solve the above problems, the technical solution adopted by this equipment is: AOT water purification equipment, including a water pump connected to the inlet and the water to be treated, and a jet injector. The outlet of the water pump is connected to the inlet of the jet injector, and the inlet of the jet injector is connected to an ozone generator. The gas-liquid outlet of the jet injector is connected to the lower inlet of the mixer, and the upper outlet of the mixer is connected to the lower inlet of the photocatalyst reaction tank. The upper outlet of the photocatalyst reaction tank is connected to the lower inlet of the catalytic oxidation tank, and the upper outlet of the catalytic oxidation tank is connected to the treated water;
A purple light lamp immersed in liquid and waterproof sealed is installed inside the photocatalytic reaction tank. A titanium dioxide layer is set on the inner wall of the photocatalytic reaction tank, and the purple light lamp shines on the titanium dioxide layer. An aluminum oxide layer is set on the inner wall of the catalytic oxidation tank, which has a honeycomb structure.

As a further improvement of the above technical solution:
A booster pump is installed between the gas-liquid outlet of the jet injector and the lower inlet of the mixer; A sequence valve is installed between the mixer and the photocatalyst reaction tank.
It also includes cold dry tanks and oxygen concentrators; The oxygen generator is connected to the inlet of the ozone generator through a cold dry tank.
The refrigeration unit, refrigerated drying tank, and ozone generator are sequentially connected in series through pipelines.
A second flow valve is installed between the refrigeration machine and the refrigerated dry tank.
There is a first flow valve connected between the safety valve and the jet injector.
A one-way valve is installed at the gas-liquid outlet of the jet injector.
There is a safety valve connected between the water pump and the jet injector.
A spiral core shaft with a spiral upward structure is vertically arranged inside the mixer, and a spiral blade with the same rotation direction and pitch as the spiral core shaft is arranged on the inner wall of the mixer.

A water purification process, utilizing the aforementioned water purification equipment, comprising the following steps:
A: Gas liquid mixing step, the water to be treated enters the jet injector through a water pump, and ozone enters the jet injector through an ozone generator. The jet injector mixes the water to be treated with ozone and sends the gas-liquid mixture through a one-way valve;
B: Step of boosting ozone purification, set the pressure of the adjustment sequence valve to be higher than atmospheric pressure, mix and react in the gas-liquid mixture mixer, and spiral upwards from the spiral channel;
C: Photocatalyst purification steps: The liquid flowing out of the sequential valve enters the photocatalyst reaction tank, and the purple light lamp immersed in the liquid irradiates the titanium dioxide layer. The liquid is purified by both ultraviolet irradiation and titanium dioxide catalysis;
D: After step C, the liquid flows into the catalytic oxidation tank and undergoes catalytic oxidation purification through a honeycomb shaped alumina layer. Finally, the water is discharged into the treated water.

The beneficial effects of adopting the above technical solution are:
1. The recalcitrant organic matter in sewage quickly reacts with hydroxyl radicals, forming small molecule compounds from the organic matter of high molecular weight polymers until carbon dioxide is generated, resulting in a rapid reduction of COD indicators in water or a rapid improvement of BOD/COD values, thereby enhancing the biodegradability of sewage;
2. Oxidation of low valence phosphorus ions in water to high valence phosphate ions, which combine with calcium ions in water to form calcium phosphate precipitates, reducing the phosphorus content in water;
3. Polymer compounds or proteins that affect the ammonia nitrogen index are also oxidized by hydroxyl radicals, thereby reducing the amino index;
4. Due to the oxidation of sulfur-containing compounds that cause foul odors by hydroxyl radicals, they form sulfur trioxide or sulfur trioxide, which dissolves in water to form sulfates or sulfites, thereby rapidly deodorizing water bodies;
5. Catalytic oxidation of complexes or chelates in water, where hydroxyl radicals react with heavy metal ions to form insoluble heavy metal hydroxide precipitates, facilitating recovery and separation, and contributing to the elimination of heavy metal pollution in water;
6. Hydroxyl radicals can quickly kill algae and bacteria, making water non-toxic and harmless.
The beneficial effects of this device are not limited to this description. For better understanding, a more detailed description has been provided in the specific implementation section.
Attached image description
Figure 1 is a schematic diagram of the structure of this device.

Among them: 1. Water to be treated; 2. Water pump; 3. Safety valve; 4. First flow valve; 5. Jet injector; 6. Mixer; 7. Photocatalyst reaction tank; 8. Catalytic oxidation tank; 9. Processed water; 10. Ozone generator; 11. Second flow valve; 12. Refrigeration machine; 13. Cold dry cans; 14. Oxygen concentrator; 15. Boosting pump; 16. Sequential valve; 17. Aluminum oxide layer; 18. Purple light lamp; 19. Titanium dioxide layer.