Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

N-removal on wastewater treatment plants : a process control approach

Vilanova, Ramon and Katebi, M.R. and Wahab, NoraLiza (2011) N-removal on wastewater treatment plants : a process control approach. Journal of Water Resource and Protection, 2011 (3). pp. 1-11. ISSN 1945-3094

[img]
Preview
PDF (strathprints027491.pdf)
strathprints027491.pdf - Preprint

Download (440kB) | Preview

Abstract

A multilayered control design approach is proposed here. Starting with the Dissolved Oxygen (DO) control loop in the last aerated tank, the control of the recirculation sludge is added next. Once the limitations of this two-loop control strategy are highlighted, a cascade control loop is proposed. This cascade control is further enhanced by a feed-forward control action that makes use of influent ammonia concentration. The resulting cascade+feedforward control configuration achieves satisfactory nitrogen removal for the three influent op-erating conditions (dry, rain and storm).