Leading Specialist for the Wet Mechanical Pre-Treatment BTA International GmbH is the leading specialist for the wet mechanical pre-treatment of different kinds of waste and the subsequent anaerobic digestion of the organic fraction according to the BTA® Process for the production of biogas. The efficient removal of impurities is the key for the successful digestion of biowaste, food waste, commercial waste and the organic fraction from municipal solid waste. BTA Hydromechanical Pre-treatment characterizes itself by its substrate flexibility and its high efficiency in the removal of impurities out of the organic suspension. This allows for high operation reliability, minimizes the disposal costs of the rejects, maximizes the biogas yield and ensures the quality of the digestate.