In order to make the different biomasses pumpable and to be able to treat or pre-treat with the patented SewaTOR® technology, the samples were first diluted and then cavitated. This operation is closely related to the execution of the laboratory tests. In the case of full scale applications the dilution depends on the installation configuration. Several chemical and physical tests were carried out for each product. Simplified tests have also been carried out in order to clearly show the user the disintegration effects of treatment and pre-treatment of the biomass.