Turbulent aggregation and break-up of particles in liquids in stirred vessels; aggregate behaviour in stirred vessels; stability and flocculation of suspensions; particle formation in suspension crystallization processes; effects of engineering parameters on precipitation, recovery and purification of proteins; Shear effects on cells in bioreactors; application of model suspensions in the design of fermenters; high concentration suspensions; preparation and properties; solid suspension in liquid fluidized beds; suspension of particles in liquids in stirred vessels; slurry pipeline flow; slurry handling problems in process industries.