Environmental
Energy Engineering
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.
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TTV Thoeni Continuous High Solids Anaerobic Digestion (cHSAD)
Put Waste in – Draw Energy out
Our society is supplying more and more consumer goods to more and more people – and the volume of waste this produces is rising by the day. But waste material also harbours great potential. Thöni Environmental Energy Engineering takes this waste and treats it, returning clean energy into society and restoring other valuable materials to the ecological cycle.
Finely tuned technical components
The heart of the TTV Thoeni Continuous High Solids Anaerobic Digestion (cHSAD) system is the so-called TTV Thoeni Plug Flow Digester. A slowly rotating paddle agitator ensures optimum mixing of the digestate, resulting in a high biogas yield. Hot water flows through heating elements, which in turn heat up the substrate. A piston pump transports the digestate from the TTV Thoeni digester through a conduit system and on to the next processing stage. A subflow of this fermentation residue makes its way back to the TTV Thoeni digester, where it acts as a inoculation material, adding a defined quantity of microorganisms to enrich the fresh input material.
TTV Thoeni Digester
A Unique Biogas Reactor
The TTV Thoeni 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 TTV Thoeni 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 TTV Thoeni Continuous High Solids Anaerobic Digestion (cHSAD) 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 Folder
Discover Thöni's expertise in the field of Continuous High Solids Anaerobic Digestion on the following pages
How to deal with impurities in organic waste
High impurity rates are no problem for the TTV Digester
The impurities are transported safely along the TTV digester from feeding to extraction. The special design and configuration of the paddles along the shaft prevents sedimentation. That way, potential sediments are continuously transported to the digester exit and have no chance to build floating or sinking layers. This ensures constant maintenance-free operation of the digester all year round.
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TTV Components
TSP Thöni Screw Press (TSP350-Twin)
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The TSP Thöni Screw Press (TSP350-Twin) is extremely efficient in the solid-liquid separation in the further processing of digestate-
TSP Thoeni Screw Press (TSP 350-C)
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The TSP Thoeni screw press (TSP 350-C) is extremely efficient in removing water from the digestates of various compositions and dry material content.
Are you interested in finding out more about TTV Thoeni Continuous High Solids Anaerobic Digestion (sHSAD) system solutions?
TNV Thoeni Wet Digestion
Harvest green energy with wet digestion plants from Thöni
At Thöni Environmental Energy Engineering, we are specialists in generating bioenergy from renewable raw materials, agricultural by-products and organic waste. Our innovative system solutions have grown out of more than 20 years experience in the construction and operation of biogas plants. We work as efficiently as nature itself, and our customers are highly satisfied with our sophisticated, intelligent plant engineering.
Mature technology for maximum biogas yields
The heart of Thöni’s natural gas technology is the TNV Thoeni Wet Digester, which is filled continuously with solid and liquid input materials using a special feed system. Slowly rotating paddle agitators ensure optimum mixing of the digestate, resulting in high biogas yields. In addition, an integrated heating system ensures ideal conditions for the generation of biogas. The fermented substrate is subsequently dewatered and can be spread directly on agricultural fields for use as a high-quality fertiliser.
TNV Thoeni Agitator
The patented TNV Thoeni 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.
The TNV Folder
Discover Thöni's expertise in the field of Wet Digestion Semi Dry on the following pages
Flexible waste treatment
Feedstocks with a high dry matter content and a low proportion of impurities are just right for the TNV Digester
Slow-running paddle mixers ensure that the viscous substrate in the TNV Digester is mixed efficiently during digestion process. This largely prevents sinking and floating layers, ensures safe operation as well as low maintenance of the TNV digester for many years.
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Are you interested in finding out more about TNV Thoeni Wet Digestion solutions?
References
Selected references of our solutions
TTV
Paris (FR)
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Operator
GICON - Großmann lngenieur Consult GmbH /France Biogas Valorisation SARL
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Plant data
Input: 2024
Input: 260 t/a OFMSW, sewage sludge, horse manure
Digester: TTV OX Micro plug-flow digester
Leonberg (DE)
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Operator
Bioabfallverwertung GmbH Leonberg (BVL)
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Plant data
Commissioning: 2024
Input: 72,000 t/a biowaste, green waste
Digester: 2xTTV2250 (double digester); concrete
TNV
Studfarm - Rufford (UK)
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Operator
future biogas
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Plant data
Launched: 2016
Input: maize silage, straw, whole crop silage
Digester: 1 primary digester, 1 secondary digester
Herbstadt (DE)
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Operator
biorest GmbH
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Plant data
Commissioning: 2020
Input: 20,000 t/a packaged food waste, biowaste, food remains, residues of food production
Digester: 1 primary, 1 secondary digester
THÖNI CARE
Service that never stops.
With THÖNI CARE, you can trust in our comprehensive, tailor-made service. Together we will determine how to achieve the constant and sustainable operation of your plant – with maximum quality. Our aim is to guarantee your company’s waste Management processes while enabling the optimum utilisation of your plant’s potential.
This special service is offered to you both from our department in Telfs and through Thöni Italia in Rovereto.
Our Process
Analysis
Survey of plant condition
and plant output
Service packages
Presentation of various
service options
Bespoke service
Plant service tailored
to your requirements
Goal
Maximum availability with
maximum gas yield
Are you interested in finding out more about THÖNI CARE services? We look forward to hearing from you!
Address
Thöni Italia S.r.l.
Individual Solutions
Technological competence for overall solutions
Our know-how doesn’t end with fermentation processes: at Thöni we are also specialists in the onward treatment of the digester output. Digestates of varying dry material content exit are discharged from the digester and dewatered in the standard plant configuration using TSP Thoeni screw presses. This results in a solid combotable digestate and a high-quality liquid fertiliser for agricultural use. Alternatively, Thöni also offers you wastewater-free operational solutions based on our 25 years of experience. We can also customise our innovative digestate treatment technologies to the customer’s individual requirements.
Partnership with quality
We supply highly efficient turnkey solutions at an optimum price-performance ratio. And not only that – as a competent technology partner, we can also provide you with the expertise you need to be able to build your own dry digestion facility. We know the fundamental challenges that occur at municipal level. We analyse the starting point and examine your human resources and structural capacities as well as the regional development that is plannable in the mid-term and relevant environmental technological aspects.
Are you interested in finding out more about our custom solutions? We look forward to hearing from you!
Quality Promise
The plus for your biogas plant.
From planning to construction and on to maintenance and servicing – this is the concept pursued by Thöni Environment Energy Engineering. We support you as a competent partner in all matters when it comes to implementing your environmental/energy engineering project. Our objective is to subject our sustainable concepts to constant development and improvement. This approach is evidenced by the success of our patented solutions and by our international projects.
