feeder 3 and a thermal microwave reactor 4 a whereas the filter 7 and the fan 8 are attached to the conveyor 2 the heat resistant ceramic heating chamber 9 a and a metal housing 10 a of the reactor 4 a both have the form of basically pipe like cylinders 13 a and 14 a which are placed horizontally and situated coaxially to one another between the cylinders 13 a and 14 a there is a horizontal annular insulation space 15 a that is filled by air the heating chamber 9 a in the form of a rotary drum is mounted in a stationary housing 10 a and connected to the drive 19 whereas the outlet of the conveyor 2 is introduced inside the chamber 9 a in the end part of the housing 10 a of the reactor 4 a there is a rotary fan crusher 17 a whereas at the outlet of the housing there are placed the containers 18 a for the crushed final product the microwave generators 11 are placed in series along the lower part of the housing 10 a and have the radiators 12 in form of tubes 16 a with flattened outlets the radiators 12 emit polarized waves with mutually perpendicular polarizations during the work of the apparatus shown in the fig1 and fig2 elements containing asbestos are placed in the crusher 1 inlet 5 for example cement asbestos plates asbestos gypsum plates asbestos blankets and asbestos cords which are crushed.