At the successful completion of this lesson, the learner will be able to:

• Define terms common to activated sludge to include aerobic, anoxic, anaerobic, volatile, biomass, RAS and WAS
• Describe the basic configuration of the activated sludge process
• Describe the basic activated sludge process to include the role of bacteria
• List the requirements of the bacteria in the activated sludge process
• List and define the various flow schemes and aeration processes
• Describe the function of and monitoring activities associated with the secondary clarifier
• Describe the functions of RAS and WAS in plant operation and control