Publications

Final report of the U.S. Department of Energy demonstration

Young, M., Beach, N., Reifsnyder, S., Ackman, P., Weiland, T., Dreher, B., Bott, C., Ekster, A., et al. (2025). Transforming Aeration Energy in Water Resource Recovery Facilities (WRRFs) through Suboxic Nitrogen Removal (Final Report). U.S. Department of Energy, DE-EE0009509, published 4 September 2025. DOI 10.2172/2587564

Controller	Frequently asked questions	White paper
DO/Nmaster (aeration, dissolved oxygen and ammonia)	FAQ (PDF)	White paper (PDF)
SRTmaster (sludge age)	FAQ (PDF)	White paper (PDF)
BLANKETmaster (sludge blankets)	FAQ (PDF)	White paper (PDF)
CLmaster (chlorine dosage)	FAQ (PDF)	White paper (PDF)

Published papers are reproduced as published. Some show the company's former address and earlier product names.

Twentieth Anniversary of the Real Time Sludge Age Control. Ekster, A. WEFTEC 2016. Twenty years of full-scale results of real-time sludge age control.
SRTmaster at Sacramento Regional. Water Environment & Technology, 2013 (scanned image).
Permit Safe, Energy Smart. Water Environment & Technology, 2010. Energy-saving projects at the 167 MGD San Jose/Santa Clara Water Pollution Control Plant.
Optimization of Pump Station Operation Saves Energy and Reduces Carbon Footprint. Ekster, A. WEFTEC 2009.
Operation of a Solids Contact Tank at Low Dissolved Oxygen and Low Total Suspended Solids Concentrations. Moise, M. and Ekster, A. WEFTEC 2007. City of Oxnard, 32 MGD.
Process Optimization and Automation Improves Reliability and Cost Efficiency of Oxnard WWTP. Moise, M. and Norris, M. WEFTEC 2005.
Golden Age. Ekster, A. Water Environment & Technology 16(6), 2004 (scanned image).
Automatic Waste Control. Ekster, A. 1st IWA International Conference on Instrumentation, Control and Automation, Malmö, Sweden, 2001.
Nocardioform Foam Control in a BNR Plant. Ekster, A. and Jenkins, D. WEFTEC 1999. San Jose/Santa Clara Water Pollution Control Plant.

The complete list of Dr. Alex Ekster's publications is on ResearchGate.