Echelon InstituteWater & wastewater operator exam preparation

Water and Wastewater Equipment in Interactive 3D

The Equipment Lab lets water and wastewater operators look inside the equipment they are tested on. Each module is an interactive 3D model with labelled components, operator notes, worked calculations in metric and US units, and the observations that tell you what the process is doing.

Available modules

Inside an Activated Sludge Aeration Basin

See how diffused air, mixed liquor and return sludge work together to grow the biomass that removes dissolved organic load.

Every module is free to use. These are generalized learning illustrations, not manufacturer drawings or site-specific procedures. Your plant's own procedures and your provincial authority's requirements always govern.