the conclusion of Fig. 5. Furthermore, carbon dioxide generated
by aerobic respiration of microorganisms was easily removed by
the movement of food waste, merging into the air flow in the upper
part of the reaction chamber, with more waste gas been exhausted
and fresh air from the air inlet entering into the reactor, the loss of
oxygen consumed was rapidly replenished. What’s more, the continuous
collision and friction between different food waste bits can
cause water exchange of particle surface water film. Food waste is
a kind of heterogeneous mixture, every reaction unit may has a
unique substrate with unique elemental composition, as fermentation
process proceeded, the chemical and physical properties of