The Ohio city of Shelby recently upgraded its activated sludge wastewater treatment plant to double its capacity to 5 mgd while expanding capability to treat and disinfect combined high-volume stormwater and wastewater flows.
The project upgraded much of the plant from its original equipment installed in 1953. A major component of the upgrade was the replacement of 18 Gorman-Rupp pumps throughout the plant with new higher-performance pumps from the same company.
These...