Read paper "Economical benefits of sludge age optimization and automatic SRT control" by Dr.Ekster in 2003 WEFTEC proceedings or e-mail us a request for a copy of  this paper.

City of Toronto after successful use of SRTmaster for SRT control made a decision to equip the entire plant (11 trains) with SRTmaster control

New (2002) edition of Metcalf and Eddy "Wastewater Engineering" lists automatic SRT control and D.O. control among 20 the most important technological solutions that have to be considered in the design of every activated sludge system.

New (2003) edition of the famous bulking and foaming manual by Dr.Jenkins, Dr.Richards, and Dr. Daigger describes Nocardia control with SRTmaster