FEILI 5kg Industrial Ozone Generator: On-Site Application for Aquaculture Wastewater Treatment

2026 03/14

Published: March 2026 | Author: FEILI

In the current aquaculture industry, the treatment of ammonia nitrogen and COD in wastewater has always been a challenging issue. Especially under high-density farming models, traditional treatment methods often suffer from unsatisfactory stability under high loads.

Based on this practical need, FEILI has recently deployed 5kg-level Ozone Generator systems in several projects for the advanced treatment of aquaculture wastewater. Currently, the equipment has been installed on-site in regions such as Vietnam and is in continuous operation.

From the projects already in operation, the system has shown relatively stable performance, primarily in improving water quality indicators, especially in controlling ammonia nitrogen and COD.

I. Equipment Structure and System Composition

Unlike a single piece of equipment, this system is closer to a complete process unit, mainly composed of the following parts:

1. Ozone Generator Unit

The core is a 5kg capacity Ozone Generator, responsible for continuously outputting ozone gas for subsequent oxidation reactions.

2. Oxygen Source System (PSA)

A stable oxygen source is provided through the PSA oxygen generator, which is one of the key conditions for ensuring the long-term stable operation of Industrial Ozone Generators.

3. Cooling System

An independent industrial chiller is used to control the operating temperature and avoid performance fluctuations under continuous operation.

4. Reaction Unit

The stainless steel reaction tank is used to improve the contact efficiency between ozone and water, which is an important factor affecting the treatment effect.

The entire system is made of 304/316L stainless steel, which can ensure a long service life even in the highly corrosive environment of aquaculture wastewater.

II. Operating Logic and Actual Treatment Function

In field applications, this system is usually used as an enhanced treatment step after biological treatment, rather than completely replacing the original process.
1. Ammonia Nitrogen Treatment: Ozone participates in the conversion of nitrogenous substances through oxidation, thus improving ammonia nitrogen levels.
2. COD Degradation: For some recalcitrant organic pollutants, ozone can break down their molecular structure, making them easier to treat.
3. Algae and Microbial Inhibition: In aquaculture systems, controlling algae and bacteria is equally important, and ozone has a significant auxiliary effect in this regard.
Based on field feedback, this type of Ozone Machine for Aquaculture Industry is more suitable as a tool for "stabilizing water quality" rather than a sole treatment method.

III. On-site Installation Status (Vietnam Project)

In the aquaculture project in Vietnam, the system has been fully integrated. Key features include:

• Direct integration of the equipment into the existing wastewater treatment pipeline

• Separate layout of the ozone generator and reaction system

• Independent operation of the cooling and oxygen supply systems.

Operationally, the system can operate continuously, and operators can adjust parameters via a touchscreen.

FEILI 5kg ozone generator cabinet installed at aquaculture wastewater treatment site

FEILI stainless steel reaction chamber and cooling system in operation

IV. Why is this type of system easier to implement?

From an engineering perspective, the long-term usability of this type of equipment depends primarily on stability, not a single indicator.

1. Relatively Simple Structure

Modular design reduces potential points of failure.

2. Clear Operating Logic

Ozone dosage and reaction time are adjustable.

3. Adaptable to Different Project Sizes

Configuration can be adjusted according to the volume of water to be treated.

For projects seeking Industrial Ozone Generators solutions, this structure is easier to integrate into existing systems.

V. Application Value and Applicable Scenarios

Besides aquaculture wastewater, this type of equipment can also be applied to:

• Advanced treatment of industrial wastewater

• Aquaculture water quality maintenance

• Optimization of circulating water systems

However, based on current project experience, its application in the aquaculture industry is more practically significant.

In actual engineering, equipment reliability is often more important than parameters. FEILI's 5kg Ozone Generator system has been put into operation in multiple sites, and current feedback indicates stable overall operation, making it suitable for enhanced treatment of aquaculture wastewater.

For projects requiring control of ammonia nitrogen and COD levels, introducing an Ozone Machine for Aquaculture Industry as a supplementary process is a relatively prudent choice.For more information about FEILI’s industrial ozone generators and water treatment solutions, please visit our product page or aquaculture wastewater treatment solution page.

Certifications: ISO, CE, FCC

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