Method and apparatus for disintegration of biomasses

A process for the disintegration of biomass, in particular sewage sludge, in which the biomass is subjected to an electromagnetic field, said biomass briefly the effect of varying low frequency electromagnetic fields having a frequency of 1 to 1000 Hz is subjected prior to biodegradation and in the biomass by entering of hard magnetic, inert working bodies, a multi-phase mixture which is the effect of varying low frequency electromagnetic fields and mechanical stresses is subjected is generated.