Aeration Tanks

Aeration tanks are a key component of urban and industrial wastewater treatment systems. These biological wastewater treatment structures enhance the aeration process by injecting air or oxygen into pre-treated effluents, promoting the activity of aerobic microorganisms responsible for breaking down organic material. APRO Industrie designs and manufactures bolted aeration tanks from 5 to 10,000 m³, compatible with activated sludge processes, MBBR and MBR systems, for municipal and industrial wastewater treatment plants worldwide.
- High corrosion resistance in highly oxygenated environments
- Fast installation: approximately one week for a 500 m³ tank
- Large-diameter structures (up to 50 m) or tall structures (up to 20 m)
- Compatible with a wide range of wastewater treatment processes
- Numerous reference installations
APRO Industrie Bolted Biological Treatment and Aeration Tanks
APRO Industrie designs, manufactures and installs aeration and biological treatment tanks ranging from 5 to 10,000 m³ for industrial and municipal wastewater treatment plants. Our expertise enables us to deliver tailored solutions designed to meet your specific treatment requirements.
The Role of Aeration tanks in Effluent Treatment
Aeration tanks receive pre-treated wastewater and support the biological treatment process by promoting the growth and activity of microorganisms. The continuous injection of air or oxygen promotes biological oxidation and requires materials capable of withstanding highly corrosive operating conditions.
APRO Industrie's bolted aeration tanks stand out from traditional concrete structures through their fast installation : approximately one week for a 500 m³ tank, their modular and relocatable design, and their ability to accommodate the full range of biological wastewater treatment equipment. Whether for an activated sludge process, a moving bed biofilm reactor or a membrane bioreactor, our aeration tanks integrate seamlessly into any wastewater treatment plant configuration, ensuring optimal biological activity and long-term operational performance.
Technical Characteristics of Our Biological and Aeration Tanks
Our tanks are typically constructed from glass-fused-to-steel with mastic sealing or epoxy-coated steel with mastic or elastomer sealing. These materials provide excellent resistance in highly oxygenated environments. APRO Industrie’s modular tank solutions can be adapted to a wide range of biological treatment processes, including:
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Moving Bed Biofilm Reactors (MBBR)
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Trickling filters
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Membrane Bioreactors (MBR)
Available Equipment for Optimal Performance
Aeration tanks can be equipped with a full range of process equipment, including: including hydro-ejectors, fine-bubble aeration systems, scraper bridges, surface aerators, and biomass supports, ensuring optimal treatment efficiency and operational performance.
All equipment is selected and sized by our technical teams according to the specific requirements of each aeration tank project: wastewater flow rate, oxygen supply capacity, type of biological treatment process ; activated sludge, MBBR or MBR and the operational and maintenance constraints of the wastewater treatment plant. APRO Industrie delivers fully equipped aeration tanks ready for commissioning, in France and across more than 50 countries worldwide.
Do you have a project?
Are you working on a project requiring an aeration or biological treatment tank? Contact our team for personalised advice and tailored solutions for your wastewater treatment project.
What Sizes Are Available?
APRO Industrie offers a full range of aeration tanks from 5m³ to 10,000 m³. Dimensions can be customized, with diameters of up to 50 meters and heights of up to 20 meters.