Wastewater operator continuing education

Trickling Filters: What More Flow Buys and Costs

Pending state approval in Illinois (Pending)

Operators often face trouble when increasing flow through trickling filters without understanding how it affects recirculation, sludge, and effluent quality. This hour shows how to read plant data and adjust hydraulic rates to keep the filter working well without wasting energy or causing problems.

Course summary, as it appears on your certificate

Equip operators with an understanding of the effects and trade-offs when manipulating flow and recirculation rates in trickling filter and fixed-film wastewater treatment processes, with emphasis on hydraulic levers distinct from activated sludge practices.

We can't sell this in Illinois yet. Tell us where you are and we'll email you the day it opens — nothing else, and one click to stop. Tell me when it opens

Level 2 — what each change does to the plant — effluent, efficiency, sludge and energy — assumes Level 1

Credit awarded: 1 hour — Technical

The Illinois course number is issued by the Agency for this course and is printed on your certificate.

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
$19.00 USD

One-time payment · lifetime access to this course

About 75 minutes of video · 1 hour