Story #46 - Egg Shaped Digester

Story #46 is about SSM’s design of the first cylindrical-shaped digester in Pennsylvania.

1996 | Egg-Shaped Digester

SSM was responsible for the planning, engineering design, and construction management of a 1.5 mgd wastewater treatment system in the Borough of Kutztown utilizing an innovative treatment technology called the egg-shaped digester system. The digester’s unique egg-like shape allows for sludge to be mixed more completely and with less energy than a conventional cylindrical-shaped digester. The digester was the first such unit in Pennsylvania. It received an Engineering Excellence Award from the Pennsylvania Consulting Engineers Council.


Read all of our 90 stories in celebration of 90 years