AAT Abwasser- und Abfalltechnik GmbH products

The AAT system creates optimal process and mixing conditions for anaerobic degradation of organic matter without moving parts placed inside the digester and without external mixing energy.

Digester dimensions: low height to diameter ratio. Mixing technology: AAT vertical agitator combined with propeller mixer. Feeding: direct solids feeding. Heating: heating register integrated in digester. Desulphurisation: integrated biological desulfurisation or external microbiological desulfurisation.

Build from prefabricated, enamelled, epoxy-coated steel segments or from concrete. Fully mixed with AAT agitator. Short construction time. Use in systems from 250 m³ to 9,000 m³. Permanently corrosion-resistant. Epoxy-coated or glass-enamelled with stainless steel roof. Concrete with PE protective film.

The AAT package plant digestion combines the sludge digestion and the gas storage in a simple and maintenance-free system.

UASB or EGSB digesters use gas separators and overflow weirs in the upper digester section to remove the biogas from the digester and retain the biomass in the digester.