This online course covers Chapter 8: Activated Sludge of WEF’s new line of training for the operator of the future, Wastewater Treatment Fundamentals. This online course is eligible for 1.3 CEUs (13 contact hours).
This course includes:

Simulated exam questions matching the format, tone, and difficulty of the real exam
Chapter level practice tests
Immediate feedback of both correct and incorrect answers
In-depth explanatory videos of key topics and processes
Excellent topic and word searchability
After purchase, this online course can be accessed at KnowledgeCenter.wef.org.