Water Supply Engineering ENCE254: Water Treatment

6.1 Overview of drinking water treatment unit operation and process

6.2 Objectives of water treatment: Treatment processes and impurity removal

6.3 Physical treatment: Impurities removal and operation mechanism

6.3.1 Screenings: Types, head losses and design steps

6.3.2 Plain sedimentation, principle, mechanism, and design

6.3.3 Filtration, operation mechanism, and design considerations

6.3.4 Aeration: Purpose, mechanism and methods

6.4 Chemical Treatment

6.4.1 Coagulation and flocculation

6.4.2 Disinfection: Purposes and significance

6.4.3 Softening: Purposes and methods

6.5 Advanced water treatment processes

6.5.1 Removal of heavy metals (Iron, Arsenic and Manganese)

6.5.2 Removal of color, odor, and taste

6.5.3 Advance oxidation processes (AOPs)

6.5.4 Membrane filters

6.5.5 Desalination and electrodialysis

6.5.6 Ozonation

6.5.7 Adsorption: Activated carbon