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Biological Treatment/ Aeration Technologies

Passavant aeration technologies and equipment installed in aeration tanks which is the core of any biological wastewater treatment plant. Modern wastewater technology needs efficient aeration systems which ensure a high level of technical flexibility with maximum oxygen enrichment values


Biological treatment is aided by microorganisms which remove dissolved substances. Aeration systems are important as they create an oxygen rich environment and promote the mixing of the sludge and water.
Passavant offers a wide range of efficient aeration systems for oxygenation of activated sludge which are designed to meet various challenges. Submerged fine bubble aeration  and surface aeration are the most commonly used aeration systems. As a suppler of both systems, we are aware of the application limits and can design and use our products according to your specific requirements. Our technologies are characterized by their constantly high level of oxygen enrichment, durable construction and application flexiblity.

Locations and Contact


Aqseptence Group Carpi Srl, Limidi

Sales and Manufacturing Location
Via Pitagora 30
41010 Limidi Di Soliera, MO

Tel: +39 059 525720

Fax: +39 059 525443



Aqseptence Group SAS, Availles-en-Chatellerault

Sales and Manufacturing Location
Zone Industrielle
86530 Availles-en-Châtellerault

Tel: +33 5 4902 1600

Fax: +33 5 4902 1616



Aqseptence Group GmbH, Aarbergen

Sales and Manufacturing Location
Passavant-Geiger-Strasse 1
65326 Aarbergen

Tel: +49 6120 280

Fax: +49 6120 28 2182


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