Dry Distillers Grain Soluble
DDGS is obtained as a bi-product from a grain distillery. Slops from distillation column are concentrated in multiple effect evaporators and the concentrated slope is added on the decanted residue obtained from the fermentation process, which are mainly proteins and the fibrous material of the grain.
This mixture of the concentrated slope and the residue is dried in indirectly heated rotary dryer or steam tube dryer to obtain DDGS which is used as cattle feed and the distillery truly becomes zero discharge.
