Upon completion of this course, learners will be able to:
Recognize…
✓ normal and abnormal floc formation
✓ abnormal conditions in a sedimentation basin
Define…
✓ Van Der Waals forces and zeta potential
Describe…
✓ the flash mixing process
✓ the coagulation and flocculation processes
✓ enhanced coagulation
✓ sedimentation basin operation
✓ the jar testing procedure
✓ the effects of tube and plate settlers
✓ the effects of sand-ballasted clarification
Compare…
✓ chemical coagulants and coagulant aids
Interpret…
✓ velocity gradient values
✓ zeta potential values
Calculate…
✓ coagulant feed setting
✓ amount of alkalinity needed for reaction with coagulants
✓ detention time
✓ velocity gradient
✓ impeller speed
✓ power required and power imparted by mixers
✓ head loss and velocity in baffled flocculators
Set-up…
✓ a jar test
Evaluate…
✓ the effects of temperature, alkalinity and pH on flocculation
✓ abnormal conditions in a sedimentation basin