Glendale WWTP Class A Biosolids Upgrade

Glendale WWTP
Lakeland, FL

The facility is designed to allow the production of Class A residuals for improved disposal options. CSI evaluated alternatives and recommended a two-phase anaerobic digestion process combining a new egg-shaped digester (ESD shown in photograph) operating in the mesophilic temperature range. To accommodate the batch operation needed to meet the Class A requirements, the system includes a feed sequencing tank.
The existing digesters were retrofitted with new mixing and heating systems, including a new boiler sized to heat the ESD to thermophilic temperatures and maintain the temperature in the mesophilic digesters throughout the process.