About Us

BTA International GmbH is the leading specialist for the wet-mechanical pretreatment and digestion of all types of organic waste containing contaminants.

Thanks to highly efficient contaminant removal, BTA® Pulper and GRS produce a clean suspension for the subsequent wet digestion. At the end of the BTA® process, biogas, digestate and separated impurities can be put to further use.

Already in the early 1980s, our founders were concerned about the effects of the then common waste disposal, the devastating consequences for the environment and the waste of resources. With the conviction that environmentally friendly recycling was possible, they set out to develop the best technology for processing organic waste.

35 years and 50 successful projects later, we are still working with the same conviction and the same aspiration to develop and implement first-class technical solutions. The Bavarian company with the somewhat unwieldy name "Biotechnische Abfallverwertung GmbH & Co. KG" has in the meantime become an international player with references from Canada to Australia. A corresponding range of cultural backgrounds also characterises our team of biologists, chemists, engineers and business economists, among others.

With this experience and our comprehensive range of services from planning to service & operation of plants, we develop custom-fit solutions for individual customer requirements.






BTA Italia


Takeover BTA


First turnkey plant


50th BTA Plant


Glasgow MBT


Torque Motor


Disco Road


New Light Fraction Separation




First Refurbishment


Further Licencees


Farm Biogasplant


Intern. Licencees


First Industrial Plant


Pilot Plant


BTA® Pulper



First Methanisation Plant in France

Foundation of BTA Italia branch with office in Genova.

Agraferm takes over 100% of BTA shares

BTA builds a turnkey plant for Gasum Oy in Turku, Finland. After a 30 year break this is our second plant in Scandinavia.

In Varennes, Quebec we build another SSO AD in Canada.

To date BTA's largest facility with a capacity of 90.000 ton/a OFMSW.

First Pulper with Torque Motor in Zell am See, AT.

City of Torontos second plant – to date largest SSO-AD in North America.

First plant with screw rake in Itzig, BE.

BTA and agraferm bundle their many years of experience.

First contract for the refurbishment of an existing wet mechanical treatment plant (EcoParc I, Barcelona, Spain).

UK / Irland: 
Enpure Ltd.

First agricultural Biogasplant of BTA (Karlshof, Germany).

BTA concludes three new license agreements

First industrial anaerobic wet digestion plant for biowaste based on the BTA® Process in Helsingoer, Denmark.

Development, Construction and Optimization of the first waste pulper in Garching, Germany.

Development of the basic technological concept with the FH Munich. First application of the BTA® Pulper.

Foundation REA and BTA for the development of treatment technologies for waste.

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