Microwave irradiation works through the passage of nonionising
radiation in the range of 2.5 GHz through a liquid or
solid medium. In the case of this study, the radiation passed
through the acid in water solution as well as the solid biomass.
The radiation is absorbed by the water molecules, causing
dielectric heating of the acid in water solution while some of
the radiation is absorbed by the molecules of the biomass
causing increased vibration of the bonding between molecules.
From a purely engineering perspective, it is believed