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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

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    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).

    Item type: Article
    ID code: 27491
    Keywords: n-removal, wastewater treatment plants, process control approach, effluent quality, nitrogen removal, activated sludge process, energy cost, wastewater process control, PID Control, Environmental technology. Sanitary engineering
    Subjects: Technology > Environmental technology. Sanitary engineering
    Department: Faculty of Engineering > Electronic and Electrical Engineering
    Related URLs:
      Depositing user: Dr Reza Katebi
      Date Deposited: 29 Sep 2010 17:09
      Last modified: 11 Dec 2013 10:54

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