Industrial Wastewater
Industrial Wastewater Ozone Treatment & AOP Systems
Oxidation of selected refractory compounds, color and odor control, or improved biodegradability.
Application conditions determine the final process, ozone dose and equipment configuration. Start with the treatment objective and actual project data.
Is this solution right for your project?
Oxidation of selected refractory compounds, color and odor control, or improved biodegradability.
Final ozone dosage and process configuration depend on actual process conditions. Difficult or variable streams may require laboratory or pilot testing before final design.
Application Overview
Industrial effluent varies widely by production process. Ozone may be used alone or within an advanced oxidation or biological treatment train, but treatability testing is often the safest way to establish dose, contact conditions and expected improvement.
Design basis and practical limits
A defensible ozone process starts with representative project data. These inputs should be confirmed before equipment output or dosage is finalized.
Design inputs to provide
- Production process and wastewater source segregation
- Flow variation, COD, TOC, color, pH and target compounds
- Required discharge, reuse or downstream biological objective
- Existing physicochemical and biological treatment train
- Representative samples for treatability or pilot testing
Define the compounds and treatment endpoint
Industrial COD is not a single substance. Effective design requires the actual wastewater matrix, target compounds and a measurable outlet or downstream-treatment objective.
Use ozone at the right point in the train
High bulk COD can make direct oxidation uneconomical. Pretreatment, source segregation or a combined biological, catalytic or peroxone process may be more appropriate.
Base difficult projects on treatability data
Laboratory or pilot testing is recommended for variable, refractory or toxic streams. It helps establish dose response, transfer conditions and whether the proposed combined process is defensible.
What Ozone Solves
- Oxidation of selected refractory compounds
- Potential improvement of downstream biodegradability
- Color or odor reduction where applicable
- Compatible with application-specific combined processes
Recommended Combined Processes
Typical Complete System Scope
A project is sized as a coordinated treatment system, not as an isolated ozone generator. The final boundary varies by application and site.
- Feed-gas preparation or oxygen supply
- Ozone generation
- Cooling and process instrumentation
- Application-specific dosing or distribution
- Contact or reaction stage
- Residual ozone and off-gas management
- Safety monitoring and control
Data Needed for Preliminary Sizing
- Treatment flow rate and operating hours
- Influent water, gas or process characteristics
- Target pollutant and required outlet standard
- Existing process flow and available contact space
- Available feed gas, cooling water and electrical supply
- Site temperature, pressure and installation conditions
- Project country, schedule and applicable local requirements
Frequently Asked Questions
How is the required ozone capacity determined?
Capacity for industrial wastewater treatment cannot be selected from flow rate alone. Preliminary sizing considers treatment flow, ozone demand, target result, contact conditions, transfer efficiency and operating hours. Variable or difficult streams may require laboratory or pilot testing before final design.
Should air, PSA oxygen or liquid oxygen be used as the feed gas?
The choice depends on required ozone output and concentration, operating profile, utilities, site space and local oxygen cost. Oxygen-fed systems generally support higher ozone concentration; the most economical option must be compared at complete-system level.
Can ozone be added to an existing treatment line?
Often yes, but a retrofit review is required. The engineer must check the injection point, hydraulic or gas conditions, contact time, materials compatibility, off-gas handling, controls, interlocks and the effect on downstream processes.
Is an off-gas destructor or residual-ozone control required?
It is commonly required where unreacted ozone may leave a contact vessel or enter an occupied area. The final arrangement depends on the process and local safety rules, but ozone generation, transfer and destruction should be treated as one engineered safety boundary.
What maintenance does an ozone system require?
Routine work normally includes checking feed-gas quality, cooling, filters and dryers, ozone monitors, valves, seals, electrical protection and the dosing or off-gas system. The exact schedule depends on equipment configuration, duty cycle and site conditions.
What information is needed for a preliminary proposal?
Send the treatment flow, operating hours, influent data, treatment target or outlet standard, existing process, available utilities, installation country and project schedule. We will first define the treatment boundary and then recommend a preliminary system configuration.
Related project references
The capacities below are documented project references. Final treatment performance depends on project-specific water quality and process conditions.
Sinopec Yunan
Petrochemical wastewater AOP
165 kg/h
View project detailsSinopec Jinjiang
Petrochemical wastewater AOP
21 kg/h
View project detailsYangzhou Wastewater
Industrial wastewater polishing
200 kg/h
View project detailsShaoxing Wastewater
Industrial wastewater (textile / printing & dyeing cluster)
600 kg/h
View project details