Please note - Swinburne University of Technology

SC748
Water Treatment Technology
7.5 credit points
No. of hours per week: four hours for five weeks
Prerequisites: SC716 and SC717 (SC747 is
advised)
Subject description
Implications of colloidal chemistry in waste water treatment.
The role of adsorption phenomena in waste water treatment.
Biological and non-biological treatment technologies. An
overview of common and advanced treatment technologies
including alum flocculation, biochemical treatment, cellular
foam microbial degradation and adsorbing colloid flotation.
Emphasis will be placed on those technologies using colloidal
principles to separate contaminant from clean water.
~ ~ 7 4 9 Polymer Flocculation
7.5 credit points
No. of hours per week: four hours for five weeks
Prerequisites: SC716 and SC717 (SC747 and
SC752 are advised)
Subject description
Types of flocculants - natural, synthetic and metal ions vs
polymers. Flocculants in solution and adsorption of polymers.
Bridging model, floc formation and floc strucfure. The role of
DLVO theory. Selective flocculation, sensitisatlon and protective
action. General principles of water treatment. Flocculation of
4 clays, pigments, etc. Analytical methods for determining low
concentration of flocculants. Effect of pH on flocs and floc
building.
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SC75o
Detergency
(D 7.5 credit points
2.
No. of hours per week: four hours for five weeks
2
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Prerequisites: SC744 and SC717 (SC716 is advised)
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2
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Subject description
0 Detergent action and the role of contact angle, adhesion,
. cohesion, micellisation and emulsification. Methods of analysis
ID
2 ranging from cloud point determination and two-phase
titrations to infra-red and NMR analysis. Detergent
biodegradability.
Detergent formulation for specific needs, eg. softeners,
conditioners. Specific examples of interest, eg. removal of
lanolin from wool and the formulation of haw shampoos.
~ ~ 7 5 1 Emulsion Technology
7.5 credit points
No. of hours per week: four hours for five weeks
Prerequisites: SC744, SC716 and SC717
Subject description
Common methods for obtaining emulsions and their
subsequent use. Emulsion polymerisation and the properties of
polymer latices.
The theory of ernulsion stability. Long range (DLVO) and short
range (Gibb's-Marangoni) stability. Surface chemical factors
and the application of the DLVO theory. Surface elasticity and
surface viscosity. The role of macromolecules as emulsion
stabilisers. Stabilisation by finely divided solids and the
properties of thin films (eg. rupture). Breakdown of emulsions
(thermodynamics). Applications to cosmetics, food, bitumen,
wax, etc.
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Polymer Stabilisation Technology
7.5 credit points
No. of hours per week: four hours for five weeks
Prerequisite: SC716
Subject description
Equilibrium thermodynamics of solutions of large
macromolecules and configurational statistics of polymers.
Forces of steric repulsion. Volume restriction and mixing
models. Calculation of free enemies. Steric stabilisation. steric
flocculation depletion stabilisation and depletion floccuiation.
Orientation of adsorbed layers.
Experimental methods for measuring the thickness of an
adsorbed layer. Implications of the adsorbed layer in particle
stability. Desiqn of copolvmers and selection of various
structural components. ~pplication to the dispersion of
pigments in various media and to polymer flocculation.
~ ~ 7 5 3 Thin Films and Foams
7.5 credit points
No. of hours per week: four hours for five weeks
Prerequisites: SC716, SC717 (SC744 and SC751
are advised)
Subject description
The properties, stability and rupture of foams. Disjoining
pressure, calculation of electrostatics. VOW and steric
components of disjoining pressure. instability and rupture of
thin films (advanced).
Evidence pertaining to short range hydration and hydrophobic
forces, based on experimental studies and statistical
mechanical treatments of fluids at interfaces. Application of
flotation emulsions and the stability of froths and foams.
~ ~ 7 5 4 Light Scattering and Concentrated
Dispersions
7.5 credit points
No. of hours per week: four hours for five weeks
Prerequisites: SC716 and SC717 (SC718 and
SC719 are advised)
Subject description
Radial distribution function (g(r)) - relationship between g(r)
and S(Q) (Q is the scattering vector) - potential of mean force
and its link to g(r). Measurement of g(r) through the scattering
of radiation and its angular variation -determination of S(Q)
using theoretical models, link between S(Q) and osmotic
compressibility.
Photon correlation spectroscopy, small angle neutron scattering
and low angle X-ray diffraction. Concept of the scattering
density parameter, particle form factor P(Q) and the structure
factor S(Q). Application to microemulsions, latices and pigment
dispersions.