
Environmental Engineering Cases
It boasts significant advantages such as high deodorization efficiency, no secondary pollution, low initial investment, low operating costs, and high overall cost-effectiveness.
Comparison of Lida Huarui Environmental Protection Deodorization Process Equipment with Commonly Used Process Equipment


Construction Unit: Nantong Bada Feed Co., Ltd.
Completion Date: May 2025
Treatment process: ozone catalysis + pipeline spraying + secondary spraying + recycled water treatment plant.
On May 4, 2025, the company's engineering department commissioning personnel completed the individual commissioning of all equipment, confirmed that all equipment was operating normally on its own, and successfully completed the integrated commissioning and delivery.

Construction Unit: Wuxi Tongwei Special Materials Branch
Completion Date: March 2023 for this project
The project began normal operation in May 2023. According to third-party testing, the ozone level was within 200 dimensionless.

Construction Unit: Cangzhou Bohai
Completion Date: August 2022
Exhaust gas capacity: 400,000 m³/h (2 sets of spray systems in total)
Treatment process: Ozone catalysis + pipeline spraying + secondary spraying + recycled water treatment plant

Construction Unit: Wuxi Tongwei Biotechnology Co., Ltd. (Specialty Feed Branch)
Completion Date: May 2020
Exhaust gas capacity: 550,000 m³/h (6 spray systems in total)
Treatment process: Ozone catalysis + primary spraying + secondary spraying + tertiary spraying + recycled water treatment plant

The exhaust gas is first catalytically oxidized with ozone and then introduced into the spray system by an induced draft fan.
Then it enters the spray box for initial absorption and deodorization, and the exhaust gas is initially cooled.
The waste gas then enters the spray absorption tower for secondary absorption and deodorization, and is further cooled.
Finally, the gas enters the spray absorption tower for three absorption and deodorization processes. After purification, the exhaust gas passes through the demister at the top of the tower and is discharged in compliance with standards.
The water absorbed by the spray is periodically treated biologically at a reclaimed water treatment plant and then reused.

Construction Unit: Zhuhai Haiyi Aquatic Feed Co., Ltd.
Completion Date: March 2020
Exhaust gas capacity: 400,000 m³/h (2 sets of spray systems in total)
Treatment process: Ozone catalysis + pipeline spraying + secondary spraying + recycled water treatment plant

The exhaust gas is first catalytically oxidized with ozone before entering the settling chamber for dust settling.
Then, the exhaust gas is drawn into the pipeline by an induced draft fan for absorption, deodorization, and cooling.
Finally, the gas enters the spray absorption tower for absorption and deodorization. After purification, the exhaust gas passes through the demister at the top of the tower and is discharged in compliance with standards.
The water absorbed by the spray is periodically treated biologically at a reclaimed water treatment plant and then reused.
The entire equipment system operates automatically, and the operating data is recorded automatically.



Construction Unit: Sichuan Tongwei Feed Co., Ltd.
Completion Date: June 2018
Exhaust gas capacity: 500,000 m³/h air volume
Treatment process: Dust settling + spray absorption + recycled water treatment plant


The exhaust gas first enters the settling chamber for dust settling. Then it enters the spray box for primary absorption and deodorization. Next, it enters the spray absorption tower for secondary absorption and deodorization. After purification, the exhaust gas passes through a demister at the top of the tower and is discharged in compliance with standards. The water from the spray absorption process is periodically treated biologically in a reclaimed water treatment plant for reuse. The entire system operates automatically, and operational data is automatically recorded.
Sichuan Tongwei Environmental Protection Equipment

One of all water pumps is on standby.
Digital butterfly valves are installed on all pipelines;
The logic control uses PLC control;
All controls and reports can be viewed on multiple devices.
