Tetra Tech’s Common Activated Sludge Microorganisms Chart is a companion to the Activated Sludge Troubleshooting Chart. This new chart is a compilation of photomicrographs taken by Ron Schuyler, P.E., B.C.E.E., to illustrate the various microorganisms that can be observed in the activated sludge process.
These photomicrographs include:
- Bacteria – flocculated and individual cells
- Amoeba protozoa
- Flagellated protozoa
- Free-swimming ciliated protozoa – bulk-liquid, crawlers and carnivores
- Crawling ciliated protozoa
- Stalked ciliated protozoa
- Metazoa – rotifers, nematodes, water bears, ostracods, and others
Also included is a relative predominance chart to show growth relationships among organisms, as well as a notes section to explain some of the details regarding the microorganisms. The Common Activated Sludge Microorganisms Chart is a laminated 23.5” x 36” sized poster that is equipped with a dry-erase pen.