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On-line estimation of nitrification and denitrification capacity at Avedøre wastewater treatment plant

Rosén, Christian LU ; Ingildsen, P; Guildal, T; Nielsen, M K; Jacobsen, B N and Ønnerth, T (2004) Aquatech, International Conference Upgrading of Wastewater Treatment Plants
Abstract
In this paper, on-line nitrification and denitrification rate estimation in an alternating wastewater treatment plant is discussed. The nitrification/denitrification rates are estimated on-line using continuous measurements of ammonia and nitrate. From the rate estimates, the plant capacity is derived. This information is useful in various ways: for early warning to prevent severe disturbances such as nitrification inhibition; for optimising phase lengths and distribution of the phases in the alternating operation; and directly for the control system of the treatment plant. The estimation is based on the derivatives of the measurement signals combined with a simplified model of nitrogen dynamics of the plant. In the paper, we show examples... (More)
In this paper, on-line nitrification and denitrification rate estimation in an alternating wastewater treatment plant is discussed. The nitrification/denitrification rates are estimated on-line using continuous measurements of ammonia and nitrate. From the rate estimates, the plant capacity is derived. This information is useful in various ways: for early warning to prevent severe disturbances such as nitrification inhibition; for optimising phase lengths and distribution of the phases in the alternating operation; and directly for the control system of the treatment plant. The estimation is based on the derivatives of the measurement signals combined with a simplified model of nitrogen dynamics of the plant. In the paper, we show examples of a successful application of the estimation methods to full-scale operation of the treatment plant and are today incorporated in the control system. (Less)
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conference name
Aquatech, International Conference Upgrading of Wastewater Treatment Plants
language
English
LU publication?
yes
id
2aa7139f-b30c-4d46-8da6-93fbc064c29b (old id 694727)
date added to LUP
2007-12-04 15:42:04
date last changed
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@misc{2aa7139f-b30c-4d46-8da6-93fbc064c29b,
  abstract     = {In this paper, on-line nitrification and denitrification rate estimation in an alternating wastewater treatment plant is discussed. The nitrification/denitrification rates are estimated on-line using continuous measurements of ammonia and nitrate. From the rate estimates, the plant capacity is derived. This information is useful in various ways: for early warning to prevent severe disturbances such as nitrification inhibition; for optimising phase lengths and distribution of the phases in the alternating operation; and directly for the control system of the treatment plant. The estimation is based on the derivatives of the measurement signals combined with a simplified model of nitrogen dynamics of the plant. In the paper, we show examples of a successful application of the estimation methods to full-scale operation of the treatment plant and are today incorporated in the control system.},
  author       = {Rosén, Christian and Ingildsen, P and Guildal, T and Nielsen, M K and Jacobsen, B N and Ønnerth, T},
  language     = {eng},
  title        = {On-line estimation of nitrification and denitrification capacity at Avedøre wastewater treatment plant},
  year         = {2004},
}