Wastewater operator continuing education
RBCs: Shaft Weight, Film Control and Failure
Approved for renewal credit in IllinoisA rotating biological contactor fails when the biofilm gets too heavy for the shaft. This hour covers controlling film thickness, watching the shaft load, recognizing the failure modes, and what the state expects.
Course summary, as it appears on your certificate
Equip wastewater operators with practical knowledge of Rotating Biological Contactors (RBCs) focusing on shaft mechanical load issues, film thickness control, operational failure modes, and state-specific regulatory demands to ensure safe and effective plant operation.
Level 1 — what it is and why — the foundations, for operators new to the subject or wanting a refresher
Credit awarded: 1 hour — Technical
The Illinois course number is issued by the Agency for this course and is printed on your certificate.
Reviewed by: Robert Risley, Class 1 Wastewater Operator — reviewed November 2026
AquaCert does not mark its own homework: a licensed operator reviews the content and the course cannot be sold while that review is out of date.
One hour of study is one hour of credit. Your certificate reports the hours, which is what Illinois records against your renewal.
What's included
- Self-paced online coursework you can start, pause, and resume anytime
- Short questions along the way, and a short final quiz to pass for your certificate (retake it as often as you need)
- An official certificate of completion (PDF) with a public verification code
- Progress saved to your My Learning dashboard
One-time payment · lifetime access to this course
About 71 minutes of video · 1 hour
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Full refund within 7 days if you have not completed the course — refund policy.
Training a team? Buy seats for your operators — card or purchase order, with a completion record you can export.
Can your plant pay? See how, with a request to print for your supervisor.