UNIT PROCESSES

Unit processes combine 2 or more unit operations to achieve a specific purpose, such as the pasteurization of milk or a juice product.

Animation of some unit processes are shown by accessing the following links to the material developed by Paul Singh of the University of California, Davis.

Pasteurization: combines fluid flow with heat transfer

Evaporation: combines fluid flow, heat transfer and mass transfer

Spray drying: combines fluid flow, heat transfer and mass transfer. We may also consider the atomization of the fluid into small particles as size reduction

Ultrafiltration: combines fluid flow and separation through a semi-permeable membrane in a pressure driven system. Membrane processes that utilize membranes with different size pores include, microfiltration, ultrafiltration and reverse osmosis