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

Ramon Vilanova, M.R. Katebi, NoraLiza Wahab

Research output: Contribution to journalArticle

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).
LanguageEnglish
Pages1-11
Number of pages11
JournalJournal of Water Resource and Protection
Volume2011
Issue number3
Early online date1 Jan 2011
DOIs
Publication statusPublished - 2011

Fingerprint

Wastewater treatment
Process control
Feedforward control
Nitrogen removal
Dissolved oxygen
Rain
Ammonia

Keywords

  • n-removal
  • wastewater treatment plants
  • process control approach
  • effluent quality
  • nitrogen removal
  • activated sludge process
  • energy cost
  • wastewater process control
  • PID Control

Cite this

Vilanova, Ramon ; Katebi, M.R. ; Wahab, NoraLiza . / N-removal on wastewater treatment plants : a process control approach. In: Journal of Water Resource and Protection. 2011 ; Vol. 2011, No. 3. pp. 1-11.
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N-removal on wastewater treatment plants : a process control approach. / Vilanova, Ramon; Katebi, M.R.; Wahab, NoraLiza .

In: Journal of Water Resource and Protection, Vol. 2011, No. 3, 2011, p. 1-11.

Research output: Contribution to journalArticle

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AU - Katebi, M.R.

AU - Wahab, NoraLiza

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AB - 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).

KW - n-removal

KW - wastewater treatment plants

KW - process control approach

KW - effluent quality

KW - nitrogen removal

KW - activated sludge process

KW - energy cost

KW - wastewater process control

KW - PID Control

U2 - 10.4236/jwarp.2011.31001

DO - 10.4236/jwarp.2011.31001

M3 - Article

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SP - 1

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JF - Journal of Water Resource and Protection

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