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M. Henze, W. Gujer, M. C. van Loosdrecht and T. Mino, “Activated Sludge Models ASM1, ASM2, ASM2d and ASM3,” IAWQ Scientific and Technical Report No. 3, IAWQ, Great Britain, 2000.

has been cited by the following article:

• TITLE: N-Removal on Wastewater Treatment Plants: A Process Control Approach

  AUTHORS: Ramon Vilanova, Reza Katebi, NoraLiza Wahab

  KEYWORDS: Wastewater Process Control, Nitrogen Removal, PID Control

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.3 No.1, January 29, 2011

  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 operating conditions (dry, rain and storm.)