AAT BIOGAS Technology

Reliable Technology for commercial success

AAT offers plant design, process technology and equipment for processing of organic waste and purification of highly contaminated waste water with simultaneous energy production. 

News

Wastewater treatment plant Zapresic, Croatia

March 25, 2025
The Zapresic wastewater treatment plant was reconstructed and upgraded. AAT delivered design, supply of equipment, start-up and operation support. Project data: 2x digesters with 1.600m³ volume each 1x gas storage 940m³ AAT scope of supply: vertical agitators digester equipment gas storage gravel filter, activated carbon filters, condensate trap gas sensors, gas analysis gas blower, emergency flare

Start of construction for digestate storage at Recycling Energie AG, Switzerland

January 31, 2025
New digestate storage tanks will be built for the biogas plant Recycling Energie AG in Nesselnbach, Switzerland. Four tanks with each 6200 m³ are needed for the storage of digestate during the winter. Digestate as high quality fertilizer is spread on nearby fields during the rest of the year. AAT is responsible for engineering, equipment and start-up of the plant. Technical data of the plant: - 90,000 t/a digestate - 4 CSTR final storage tanks with each 6,200 m³ volume - Biogas upgrading with CNG-filling station and combined CO 2 -liquefaction - Start-up scheduled: end of 2025
Our perfomance profile

AAT builds biogas plants for food waste, whey, sugar beet, organic waste, stillage, sewage sludge, spent grain, molasses, press cake and many other substrates. AAT has designed and implemented biogas plants for over 150 substrates.


We deliver everything from one source. From design, supply of plant components, assembly, start up, biological support to after sales service. Our speciality is the unique hydraulic mixing digester.


Our core business is the treatment of industrial and municipal sludge, biowaste, agriculture feedstock and energy crops.

References

About 1,000 clients use AAT components and Know-how. Well over 130 large-scale plants in 30 countries have been built under our management since 1993. Here you will find a part from the waste treatment plants, sewage treatment plants and agricultural biogas plants that we have implemented.


We will be happy to provide other references and detailed information on the projects we have carried out upon request.


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