Next Article in Journal
Household Water Filtration Technology to Ensure Safe Drinking Water Supply in the Langat River Basin, Malaysia
Previous Article in Journal
Mediterranean and Black Sea Monstrilloid Copepods (Copepoda: Monstrilloida): Rediscovering the Diversity of Transient Zooplankters
Article

Compressor Scheduling and Pressure Control for an Alternating Aeration Activated Sludge Process—A Simulation Study Validated on Plant Data

Department of Energy Technology, Aalborg University, Niels Bohrs Vej 8, 6700 Esbjerg, Denmark
*
Author to whom correspondence should be addressed.
Academic Editor: Bing-Jie Ni
Water 2021, 13(8), 1037; https://doi.org/10.3390/w13081037
Received: 16 March 2021 / Revised: 2 April 2021 / Accepted: 6 April 2021 / Published: 9 April 2021
(This article belongs to the Section Wastewater Treatment and Reuse)
Aiming at reducing their emissions, wastewater treatment plants (WWTP) seek to reduce their energy consumption, where a large amount is used for the aeration. The case plant, Grindsted WWTP uses an alternating aeration strategy, with a common air supply system facilitating the process in four aeration tanks and thus making optimisation challenging. In this work, a nonlinear model of the air supply system is designed, in which multiple key parameters are estimated by data-driven optimization. Subsequently, a model-based control strategy for scheduling of compressors and desired airflow is proposed, to save energy without compromising the aeration performance. The strategy is based upon partly static- partly dynamic models of the compressors, describing their efficiency in terms of system head and volumetric airflow rate. The simulation study uses real plant data and shows great potential for improvement of energy efficiency, regardless of the aeration pattern in any of the four process tanks, and furthermore contributes to a reduction in compressor restarts per day. The proposed method is applicable to other WWTP with multiple compressors in the air supply system, as this study is conducted using first principle models validated on data from the daily operation. View Full-Text
Keywords: WWTP; aeration control; alternating ASP; compressor efficiency; data validation; parameter identification; case study WWTP; aeration control; alternating ASP; compressor efficiency; data validation; parameter identification; case study
Show Figures

Figure 1

MDPI and ACS Style

Hansen, L.D.; Veng, M.; Durdevic, P. Compressor Scheduling and Pressure Control for an Alternating Aeration Activated Sludge Process—A Simulation Study Validated on Plant Data. Water 2021, 13, 1037. https://doi.org/10.3390/w13081037

AMA Style

Hansen LD, Veng M, Durdevic P. Compressor Scheduling and Pressure Control for an Alternating Aeration Activated Sludge Process—A Simulation Study Validated on Plant Data. Water. 2021; 13(8):1037. https://doi.org/10.3390/w13081037

Chicago/Turabian Style

Hansen, Laura D.; Veng, Morten; Durdevic, Petar. 2021. "Compressor Scheduling and Pressure Control for an Alternating Aeration Activated Sludge Process—A Simulation Study Validated on Plant Data" Water 13, no. 8: 1037. https://doi.org/10.3390/w13081037

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop