From real-world experience - for real-world application
BIOGASTECHNIK SÜD GMBH
Innovative components for your biogas plant
Biogas Plant Technology: Innovative components for your operation
Biogas Plant Technology from a Single Source: Biogastechnik Süd GmbH, based in Isny, develops and manufactures high-quality components for biogas plants, ranging from feed-in technology and energy-efficient paddle agitators and screw separators to digestate evaporation. Our solutions are born out of practical experience, for practical use: closed-loop, emission-free and designed for maximum biogas yield. Get in touch with us and find the right solution for your plant.
Biogastechnik Süd at trade fairs in 2026
Biogastechnik Süd will once again be exhibiting at national and international trade fairs in 2026. Come and meet us at leading industry events and discover our innovative solutions for biogas plants, including separators, agitators, heat recovery systems and technologies for the treatment of slurry and digested residue. Find out more about components such as the SEPOGANT screw press separator, the Varibull paddle agitator and the Returgant container. We look forward to discussing these with you!
25.09.2026
Isny Kurhaus
10. - 13..11.2026
Hannover | Halle 25 Stand D18
Biogastechnik Süd: Your specialist in biogas plant technology
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Why Biogastechnik Süd? From practical experience, for practical use
Professionalism
Tried-and-tested solutions
Experience
From real-world experience, for real-world application
Our technical solutions have proven their worth time and time again in the field of biogas technology and are constantly being further developed.
Feeding technology - EASYFEEDER
Biogas Plant Components
Solid feed via our Easyfeeder range of feeding systems is characterised by its high degree of versatility in adapting to a wide variety of digester designs. Even during the development of this solid feed system - which has proven itself in practice over many years - the focus was on minimising energy consumption and wear and tear.Agitators - VARIBULL
Our paddle agitators for biogas plants
Paddle agitators are specifically designed to homogenise large quantities of substrate at low speeds, with low shear stress and minimal energy consumption. The combination of robust mixing paddles, effective flow patterns and sophisticated technology offers the following advantages over conventional shaft-type agitators, submersible motor agitators and central agitators:Separation technology - SEPOGANT / SEPOFARM / RETURGANT DIREKT
Screw Press Separator
The Sepogant screw press separator from Biogastechnik Süd reliably separates a wide variety of feedstocks - from slurry and digester residues to stillage from waste treatment plants.Insertion technique
Easyfeeder AS | Easyfeeder FA | EasyFeeder Top AS | Easyfeeder Top FA | Easyfeeder Mix Flex | Easyfeeder Mix BioMix | Easyfeeder Mix PreMix | Easyfeeder Mix BioMerge
Solid feeding using our Easyfeeder range of feeding systems is characterised by a high degree of versatility in adapting to a wide variety of fermenter designs. Even during the development of this solids feeding technology, which has proven its worth in practice over many years, the focus was on minimising energy consumption and wear and tear.
Mixers
Varibull | Varibull L
Paddle agitators are specifically designed for homogenising large quantities of substrate at low speeds, with low shear stress and minimal energy consumption. The combination of robust agitator paddles, effective flow patterns and sophisticated technology offers enormous advantages.
Separation technology
Sepogant | Sepofarm | Sepogant Kompakt | Sepogant Mach X | Sepogant Direkt | Returgant Direkt | Returgant Direkt in a container
The Sepogant screw press separator from Biogastechnik Süd reliably separates a wide variety of feedstocks - from slurry and digestate to stillage from waste treatment plants.
Heating technology
Tank heating | Optiheat | Heatcrack | Heatogant
A stable fermenter temperature is the basis for maximum gas production in any biogas plant. With its heat exchanger product family, Biogastechnik Süd offers a comprehensive range of heating technology: from the tried-and-tested tank heater, through the high-performance Heatcrack system and the efficient Heatogant heat exchanger, to the intelligent OptiHeat.Digestate evaporation - VAPOGANT
Vapogant
The Vapogant digestate evaporation system from Biogastechnik Süd processes digestate from your biogas plant into valuable, highly concentrated fertilisers, including ammonium sulphate (farmAS®) and concentrated liquid fertiliser (farmLC®).Ultrasound technology - WAVEBOX
Wavebox
The unique combination of the Returgant Direkt biomass recirculation filter and ultrasonic technology makes it possible to break down unfermented and previously undegraded fibres. This results in an even higher gas yield!Heating Technology
Tank heating | Optiheat | Heatcrack | Heatogant
A stable digester temperature is the basis for maximum gas production in any biogas plant. With its heat exchanger product range, Biogastechnik Süd offers a comprehensive range of heating technology solutions: from the tried-and-tested tank heating system, through the high-performance Heatcrack system and the efficient Heatogant heat exchanger, to the intelligent OptiHeat.
Fermentation residue evaporation
Vapogant single-stage | Vapogant® two-stage | Vapogant BV
The Vapogant digestate evaporation system from Biogastechnik Süd processes digestate from your biogas plant into valuable, highly concentrated fertilisers, including ammonium sulphate (farmAS®) and concentrated liquid fertiliser (farmLC®).
Ultrasound technology
Wavebox | Wavebox in a container
The unique combination of the Returgant Direkt biomass recirculation filter, when used in conjunction with ultrasonic technology, makes it possible to break down unfermented and previously undegraded fibres. This results in an even higher gas yield!
