Unit operations 1

Presentation

Programme (detailed contents):

* Intermolecular and interfacial interactions occurring in physical and chemical processes (interfaces and colloïds - molecular interactions - surface tensions - capillarity - wettability - adhesion - Surfactants - Interfacial forces : application to colloids),  coalescence…

* Membrane, filtration media and fouling (types of processes, media, membrane- operating parameters and fouling phenomena for pressure-driven membrane processes, retention phenomena),effect of operating conditions on the process selectivity and productivity, mass balances and design of  deep-bed filters, of membrane processes.Energy consumption.

* Mixing

Macroscopic characterization of the mixing

Technology of mixers : stirred tanks and static mixers

Mixers design

Objectives

At the end of this module, the student will have understood and be able to explain (main concepts) :
- the basic concepts of interface and colloidal systems
- phase equilibrium diagrams
- general concept for mass transfer unit operations (ideal stages, operating line...).
Kinetic limitations and theirs effects on separation and mixing
- different ways to perform separation processes
- basic concepts of deep-bed filtration and membrane separation (UF/MF/NF)
The student will be able to:
- identify interactions between compounds or interface/compounds involved in separation and mixing operations
- identify main membrane fouling phenomena for a given application
- use the equilibrium diagrams

Needed prerequisite

Thermodynamics.
Fluid properties and mass transfer.
Hydraulics and dispersed systems.
Basic concepts of Chemistry and Physics .

Form of assessment

The evaluation of outcome prior learning is made as a continuous training during the semester. According ot the teaching, the assessment will be different: as a written exam, an oral exam, a record, a written report, peers review...