TU Delft offers a free 7 week online introductory course on urban sewage treatment starting in April 2016.
The course consists of 6 modules:
- Sewage treatment plant overview
- Primary treatment
- Biological treatment
- Activated sludge process
- Nitrogen and phosphorus removal
- Sludge treatment
View the course introduction video
For $50 participants can get a Verified Certificate for the course.