Ozone Destruction – Safe and Efficient Residual Ozone Removal
Overview
In every ozone treatment system, a portion of ozone remains unreacted after the contact process. This residual ozone, if not properly neutralized, poses safety and environmental risks.
Longking EnTech Europe designs and manufactures high-efficiency Ozone Destruction Units (ODUs) that ensure complete and safe conversion of residual ozone into oxygen (O₂) before release into the atmosphere.
Our thermo-catalytic systems guarantee compliance with occupational and environmental standards, ensuring safe operation in municipal and industrial ozonation plants.
Function & Operating Principle
Longking’s ODUs operate through a controlled thermo-catalytic decomposition process, combining precise temperature control, optimized gas handling, and long-life catalytic materials.
Main process steps:
1️⃣ Ozone Gas Recovery – The residual ozone from the top of the contact chamber is collected through a stainless-steel gas line and directed into the destructor using a dedicated blower or vacuum system.
2️⃣ Gas Pre-Treatment – A demister or condensate separator removes moisture droplets to prevent catalyst degradation.
3️⃣ Controlled Heating – The gas passes through a heater, where temperature is raised (typically 60–120 °C) for optimal catalytic reaction efficiency.
4️⃣ Catalytic Decomposition – Inside the reactor, ozone molecules (O₃) are converted into oxygen (O₂) as they pass through the catalyst bed.
5️⃣ Clean Gas Discharge – The treated, ozone-free air is safely vented to the atmosphere via a discharge stack equipped with vacuum measurement and flow regulation.
This process ensures >99.9 % ozone removal efficiency, providing continuous protection for operators and the environment.
Key Design Features
Longking’s Ozone Destruction Units (ODUs) are engineered to deliver maximum safety, performance, and durability, even under continuous industrial operation.
Main design characteristics:
Thermo-Catalytic Reaction Chamber: Combines heating and catalytic stages for stable ozone decomposition.
Stainless Steel Construction: AISI 304/316 L for corrosion resistance and long service life.
Automatic Temperature Control: Microprocessor-based regulation with variable setpoints depending on ambient conditions.
Integrated Moisture Separation: Demister or liquid trap to protect the catalyst bed.
Pressure and Flow Monitoring: Sensors for vacuum and differential pressure control.
Compact Modular Design: Easy integration into new or existing ozone plants.
Fail-Safe Operation: Automatic shutdown in case of overtemperature or fan failure.
Control & Automation
Each ODU includes a PLC-based control system that monitors temperature, flow rate, and system status in real time.
It can be operated standalone or integrated with the main ozone generator control panel or SCADA system.
Automation functions include:
Temperature regulation with PID control.
Catalyst protection and regeneration cycles.
Alarm handling for overtemperature, low flow, or leakage.
Start-up/shutdown synchronization with ozone generation.
This advanced control ensures consistent destruction performance and safe system operation under all load conditions.
Technical Highlights
Technology Type: Thermo-Catalytic Ozone Decomposition
Removal Efficiency: ≥ 99.9 %
Operating Temperature: 60–120 °C (adjustable)
Material: AISI 304 / 316 L Stainless Steel
Control System: PLC + HMI, optional SCADA integration
Moisture Control: Demister + Drain System
Cooling / Heating: Electrical or indirect thermal heating
Applications: Municipal & Industrial Ozone Plants
Applications
Longking’s ozone destruction technology is used in:
Municipal and industrial ozone plants – residual ozone neutralization before venting.
Drinking water treatment – safe off-gas release after contact chambers.
Wastewater treatment – elimination of ozone traces from reactors and contact tanks.
Industrial oxidation systems – solvent, VOC, or process gas ozone removal.
With more than two decades of experience in ozone and oxidation engineering, Longking EnTech Europe provides reliable and safe ozone destruction solutions built to meet the most demanding environmental standards.
Our thermo-catalytic units combine proven design, robust materials, and intelligent control, ensuring complete ozone elimination, operator safety, and long-term performance in every application.