The Municipal Utilities Board of the City of Albertville evaluated numerous options before settling on a long-term biosolids technology.Between landfilling 30 years ago and indirect closed-loop thermal drying today, the utility tried land application of Class B biosolids and explored thermophilic digestion, lime stabilization and various direct drying technologies.Elden Chumley, general manager and CEO, calls the Alabama utility’s BIO-SCRU drying system (Therma-Flite) a clean and economical process that yields Class A biosolids with a variety of potential applications.“Nearby landfills were no longer in operation and land application sites were limited,” says Chumley. “We had to start looking for the next
