First name:
L.
Last name:
Rieger
[1]
Schraa, O.; Rosenthal, A.; Wade, M. J.; Rieger, L.; Miletic, I.; Alex, J. (2019). Assessment of aeration control strategies for biofilm-based partial nitritation/anammox systems, WATERMATEX 2019 - 10th IWA Symposium an Modelling and Integrated Assessment, 01.-04.09.2019, Kopenhagen, Dänemark
[1]
Schraa, O.; Rieger, L.; Alex, J.; Miletic, I. (2019). Ammonia-based aeration control with optimal SRT control: Improved performance and lower energy consumption, Water Science & Technology, vols. 79 (1):63–72. doi:https://doi.org/10.2166/wst.2019.032
[1]
Schraa, O.; Rieger, L.; Alex, J. (2017). Development of a model for activated sludge aeration systems: linking air supply, distribution, and demand, Water Science & Technology, vols. 75 (3):552–560. doi: DOI: 10.2166/wst.2016.481
[1]
Schraa, O.; Rieger, L.; Alex, J. (2017). Ein neues Konzept zur Schlammalterregelung von Belebtschlammkläranlagen, DWA-GMA-Gemeinschaftstagung „Mess- und Regelungstechnik in abwassertechnischen Anlagen - Konzepte, Erfahrungen, Trends“, 30.-31.05.2017, DWA, Wiesbaden-Niedernhausen
[1]
Hübner, C.; Thron, M.; Copp, J.; Rieger, L.; Vanrolleghem, P. (2011). Herausforderungen und Lösungsansätze bei der Entwicklung von Wassergütemessstatio­nen, Gemeinschaftstagung „Mess- und Rege­lungstechnik in abwassertechnischen Anlagen – Konzepte, Erfahrungen, Trends, 25.-26.10.2011, Fulda
[1]
Hübner, C.; Suchold, N.; Alex, J.; Thron, M.; Zipper, H.; Rieger, L. (2018). Offene Plattform für die Prozessoptimierung - Digitaler Zwilling im Wassermanagement 4.0, AUTOMATION 2018, Seamless Convergence of Automation & IT, 03.-04.07.2018, VDI Verlag GmbH, Baden-Baden
[1]
Alex, J.; Rieger, L. (2013). Modellgestützte Regelung der Dosierung von Kohlenstoffquellen für mehrstufige Anlagen zur weitergehenden Stickstoffelimination, DWA-GMA-Gemeinschaftstagung Mess- und Regelungstechnik in abwassertechnischen Anlagen, 15.-16.10.2013, DWA, Fulda
Abstract:
The operation of water resource recovery facilities (WRRF) relies on the use of reliable and timely data that are collected from various sensors and laboratory samples. Data are used to monitor processes, in control loops, and in modeling and design studies. While data are essential to proper plant operation, the quality of sensor outputs is often taken for granted and minimal effort is spent on sensor maintenance and calibration. Over time, sensors often exhibit faults that can negatively impact the operation of systems such as control loops that use the sensor data directly or as part of process control models and algorithms (Thomann et al., 2002). These faults obscure useful information and can therefore prevent beneficial manual and automated changes to plant operations that increase efficiency and reduce operating costs. An automated, software-based system has been developed to aid in the collection, storage, analysis, and use of plant data. This software-based system relies on a systematic monitoring methodology for sensors (and related devices), characterization of the (measurement) devices, storage and retrieval of data, documentation of maintenance procedures and staff role assignments. This system provides an ability to (1) detect sensor and other faults in real-time with algorithms that are specific to certain fault or symptom types, (2) controller performance monitoring, and (3) automated controller tuning tools. A discussion of applications of the system in projects for full-scale WRRF’s is included.
Year of Publication:
2018
Secondary Title:
ISA Water/Wastewater Symposium
Date Published:
08/2018
Publication Language:
eng
Citation Key:
2029
[1]
Alex, J.; Rieger, L.; Bott, C. (2013). A New Model-based Approach to Control Methanol Dosage at multi-stage WWTPs, 11th IWA conference on instrumentation control and automation, 18.-20.09.2013, Narbonne, France
[1]
Copp, J.; Belia, E.; Hübner, C.; Thron, M.; Vanrolleghem, P.; Rieger, L. (2010). Towards the Automation of Water Quality Monitoring Networks, IEEE CASE 2010, 6th IEEE Conference on Automation Science and Engineering, 21.-24.08.2010, Toronto/ Canada