Blood
collected from slaughterhouses can be processed and turned into a
valuable resource.
A
preliminary treatment called coagulation involves sending the
untreated cold blood into a horizontal decanter with the addition of
steam. When separation is optimal, the liquid phase exiting the
decanter resembles a milky cappuccino, while the solid phase is dry
and powdery. The solid phase can be further dried in a subsequent
stage.
A
different procedure separates plasma from hemoglobin, starting with
fresh blood. In this case, a liquid-liquid vertical disc separator
without discharge is required.