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Hydraulic DigesterHydraulic mixing: Digester mixing and effluent discharge is achieved by using biogas produced in the digester, no external energy is required. No moving internal parts such as agitators are necessary. Digestion of feed substrate with high dry solids content (DS up to 12 %) is possible. |
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Energy Crops DigesterFeatures: Digester dimensions: low height / diameter ratio, Construction: steel reinforced concrete floor, walls and ceiling with centre column, Agitation: AAT vertical shaft mixer combined with submersible mixer, Feeding system: dry material feeder, Heating: heating coils inside digester, Desulphurization: integrated in digester or external biological desulphurization. |
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Sewage Sludge Digester AgitatorsAAT vertical shaft agitators for new or refurbished sewage sludge digesters. Each agitator is manufactured to suit the specific project requirements. |
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Vertical Shaft AgitatorSpecially designed for digesters fed with energy crops, the AAT vertical shaft agitator has been in operation since 2003. Digester size up to 3.000 m³ and feed dry solids content up to 25 % present no difficulty for this agitator. It is applied in digesters with a low height / diameter ratio. Only an optimal mixed digester grants a high gas yield. |
