Since 1991, Thöni Environmental Energy Engineering has been developing systems designed to generate bioenergy from organic waste. We put together the best individual solutions for our customers, from planning and construction to service.
A Unique Biogas Reactor
The TTV plug flow digester is ideal for use with organic waste that is dry and has a high impurity content. Its core components are patented; these include the walk-in-accessible heated digester floor and the strongest and most robust paddle agitator in use in the field of high solids AD plants. The Thöni paddle agitator is characterised by its ability to perform the complex task of fermenting inhomogeneous substrates uniformly and consistently. The dimensioning of the paddle and shaft is an important factor of mixing efficiency and for ensuring a virtually unlimited service life – even when subjected to very high stress levels. For this reason, the paddle head is specially formed from hard-wearing steel. The special mixer configuration – comprising the design and arrangement of the paddles – allows for 100% prevention of sedimentation, while continually transporting sediments to the digester discharge and at the same time preventing the formation of floating layers. This ensures constant maintenance-free operation of the digester – even when the input material contains very difficult contaminants.
Reliability of every component
The Thöni high solids anaerobic digestion system is characterised by its high level of functionality and ease of maintenance. This is down to our many years of experience in the construction and operation of digestion plants. When we plan a system, we make sure that we install robust plant equipment, including redundant components. This enables us to ensure minimal down times, even when performing servicing and maintenance activities.
The TTV plug flow digester is ideal for use with organic waste that is dry and has a high impurity content. Its core components are patented; these include the walk-in-accessible heated digester floor and the strongest and most robust paddle agitator in use in the field of high solids AD plants.
The patented Thöni paddle agitator is ideal for ensuring efficient mixing of a wide range of feeds with a very high dry material content. Specially designed paddles keep the material in motion to stop heavy impurities from being deposited on the floor of the digester and prevent potential suspended matter from forming floating layers. This creates ideal conditions in which microorganisms are able to biodegrade the material. The efficient mixing motion means that no further dilution of the digester content with water or by recirculation is needed, with the advantage that less liquid needs to be pumped into the system. It also keeps energy consumption and maintenance costs low.