Major business segment: System provider
Further business segments: Provider of components and substrates, supplier / Operator, planner, advisor
- Liquid manure and co-substrate plant, 1.4 MWel, Slovenia
- Whey fermentation 500 kWel, Austria
- Plant for production waste materials, 1.6 MWel, USA
- Hydraulic fermenter
- Plant for renewable raw materials, 1 MWel, Austria
AAT Abwasser- und Abfalltechnik GmbH
Biogas technology at its most advanced! Your experienced partner for difficult tasks
AAT GmbH was founded in 1993, though the employees’ expertise is drawn from 29 years of experience in biogas plant construction. AAT supplies anaerobic plants (biogas plants) for processing organic production waste materials which simultaneously generate energy. The company’s core competence lies in systems for treating and processing industrial production waste materials, food waste, renewable raw materials, agricultural substrates and municipal sludge. Our primary services include planning, consulting, construction management, equipment supply, start-up support and after-sales service. Thanks to our extensive knowledge, we provide well-thought-out plant concepts as well as sophisticated standard solutions, and regularly develop tailor-made solutions.
AAT offers the following main components: substrate pretreatment systems, fermenters, agitators, gas holders, gas extraction equipment, desulphurisation plants, gas flares, control and safety devices, and control systems. The input materials determine the technology used. AAT offers unique solutions for an extremely wide range of demands.
Examples include: the MSB fermenter for whey fermentation and purification, which enables whey to be fed into the municipal wastewater treatment plant.
The hydraulic fermenter, designed in accordance with the AAT alternating pressure system, is a unique system for several reasons.
It has no mechanical components such as agitators, the biogas produced in the digester drives mixing and substrate discharge, sediment and scum are discharged effectively and the flow is defined without short-circuit current.
This system offers the following advantages:
- maximum degree of process stability
- high degradation rate of organic matter
- high energy yield, low susceptibility to faults
- extremely low operating and maintenance costs.
The reactor has been used successfully for a large variety of mono-substrates and mixed substrates such as:
- slop
- food waste
- organic waste
- liquid manure
- renewable raw materials
- potato waste
- sewage sludge.
All our plants comply with industrial standards.