Thermal Flow Meter Improves Digester Gas System Fueling Boilers For Plant Steam And Hot Water

By Craig Schessler, Instrumentation & Process Control Supervisor, Tres Rios Waste Reclamation Facility, and Steve Craig, Sr Applications Engineer, Fluid Components International (FCI)

Accurate, repeatable air/gas flow measurement under harsh outdoor conditions is essential to successful wastewater treatment operations when used in aeration or digester biogas applications. The challenge for plant engineers when it comes to measuring reactor air and digester gas flow is that a relatively small number of flow meter technologies are capable of reliable measurement under the variable climate and dirty operating environments encountered at wastewater treatment plants.