Lessons learnt from evaluating full-scale ammonium feedback control in three large wastewater treatment plants.
Three large wastewater treatment plants in Sweden participate in a project evaluating different types of ammonium feedback controllers in full-scale operation. The goal is to improve process monitoring, maintain effluent water quality and save energy. The paper presents the outcome of the long-term evaluation of controllers. Based on the experiences gained from the full-scale implementations, a discussion is provided about energy assessment for the purpose of comparing control strategies. The most important conclusions are the importance of long-term experiments and the difficulty of comparing energy consumption based on air flow rate measurements.
IVL Swedish Environmental Research Institute, P.O. Box 210 60, 100 31 Stockholm, Sweden E-mail: linda.amand@ivl.se; Department of Information Technology, Uppsala University, P.O. Box 337, 751 05 Uppsala, Sweden.
L
L
Åmand
Stockholm Vatten, Henriksdals reningsverk, 131 55 Nacka, Sweden.
C
C
Laurell
SYVAB, Himmerfjärdsverket, 147 92 Grödinge, Sweden.
K
K
Stark-Fujii
Käppala Association, P.O. Box 3095, 181 03 Lidingö, Sweden.
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A
Thunberg
Department of Information Technology, Uppsala University, P.O. Box 337, 751 05 Uppsala, Sweden.
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B
Carlsson
D064751:Ammonium Compounds / Q000737:chemistry*; D003246:Conservation of Energy Resources; D005246:Feedback; D013548:Sweden; D018505:Waste Management
D064751:Ammonium Compounds