What are the components of an ozone jet dosing system?

The PID flow of the jet ozone dosing system designed by Chengdu Lushui Technology Co., Ltd. is as follows:

In the diagram, the markings are: 1-Oxygen source system, 2-Power water pump, 3-Venturi jet injector (primary jet), 4-Enhancing nozzle (secondary jet).

A. Oxygen Source System:

This mainly includes a liquid oxygen storage tank, vaporizer, oxygen pressure regulating and delivery pipelines or an oxygen generator, and oxygen pressure regulating and delivery pipelines.

The oxygen source system supplies the raw gas for ozone production to the ozone generator. Under certain circumstances, it can also supply oxygen to the aeration tank simultaneously or separately, increasing the total oxygenation capacity of the aeration tank.

B. Jet Aerator

The jet aerator, powered by a pump, consists of a primary Venturi jet aerator outside the pool, secondary booster nozzles and piping installed inside the pool, and switching valves.

1. The pump provides the necessary energy for the Venturi jet aerator to draw in ozone, for the transport of the water-air mixture, and for the secondary spraying and mass transfer by the booster nozzles.

2. The Venturi jet aerator is the core component of the entire aeration system; the ozone mass transfer aeration process begins here. Ozone is drawn in by the high-speed water flow at the throat, forming a water-air mixture with uniform microbubbles within the primary Venturi jet aerator, thus initiating the mass transfer process. The water-air mixture is then transported through pressurized piping to the secondary booster nozzles, where ozone continues to transfer mass within the pool.

3. The enhancement nozzle is also a key component of the aeration system. Its function is to allow the supersaturated oxygen-laden water-air mixture to be sprayed a second time at the bottom of the tank, thoroughly mixing with the relatively low ozone content of the wastewater, thus facilitating mass transfer and improving ozone transfer efficiency and aeration uniformity.

4. The valve system's operation allows the ozone supply to be adjusted according to changes in water quality during the aeration process, while ensuring that water does not enter the ozone pipeline, guaranteeing the safety and cost-effectiveness of the system operation.

C. Piping System

1. The piping system for the entire high-difficulty wastewater treatment system, combining biological treatment with advanced O3 oxidation for zero-discharge effluent, is simple, easy to manufacture and maintain.

2. For new projects, the power pump and Venturi jet aerator are located outside the tank. The jet aerator outlet is connected to the secondary enhancement nozzles via a pipe. The connecting pipe passes through pre-embedded holes in the wall to place the enhancement nozzles at the bottom of the tank. Normal maintenance and repair are only required for the power pump; the jet aerators require no maintenance and their performance does not degrade over long-term operation.

3. For renovation projects, the power pump and Venturi jet aerator are located outside the tank. The main pipe connecting the jet aerator outlet to the enhancement nozzles extends above the wall and then runs along the tank wall, connecting to the enhancement nozzles located at the bottom of the tank via branch pipes. Depending on the design size, the enhancement nozzles can be manually placed into the tank bottom or hoisted in. After positioning, the connecting pipe extending above the water surface is connected to the branch pipe on the main pipe.

D. Summary

The jet ozone dosing system consists of an oxygen source, a power pump, a venturi jet injector for primary mixing, and a bottom-mounted booster nozzle for secondary mass transfer. Valves and pipelines enable the system to adjust gas supply according to water quality, prevent backflow, and ensure safe and economical operation.