Model calibration and feed‐forward control of the wastewater treatment plant

Case study for CLUJ‐Napoca WWTP

Abhilash Nair, Vasile Mircea Cristea, Paul Serban Agachi, Marius Brehar

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Although the activated sludge models for waste water treatment plants (WWTPs) offer comprehensive description of their involved biochemical and physical processes, it is a challenging task to calibrate the model for the operational plant. The article first presents a systematic calibrating procedure applied to the Activated Sludge Model No.1 (ASM 1), showing its potential to be extended to other WWTPs. It particularly addresses cases when comprehensive knowledge on the WWTP influent composition does not exist. An optimisation‐based approach is used for the WWTP model calibration and for finding the partially unknown influent composition. Dynamic model validation shows good match between model predicted values and WWTP measured data. Second, a new feed‐forward control strategy is designed for the WWTP and compared with the conventional nitrate‐nitrite nitrogen and dissolved oxygen control. The evaluation based on the effluent quality index, pumping and aeration energy and the number of effluent violations assessment tools, demonstrates incentives for the proposed control approach.
Original languageEnglish
Pages (from-to)164-172
JournalWater and Environment Journal
Volume32
Issue number2
DOIs
Publication statusPublished - 2017

Fingerprint

Water treatment plants
Feedforward control
Wastewater treatment
Wastewater
Calibration
calibration
activated sludge
Sewage aeration
Effluents
effluent
model validation
Dissolved oxygen
Chemical analysis
aeration
waste water treatment plant
wastewater treatment plant
pumping
Dynamic models
dissolved oxygen
incentive

Cite this

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title = "Model calibration and feed‐forward control of the wastewater treatment plant: Case study for CLUJ‐Napoca WWTP",
abstract = "Although the activated sludge models for waste water treatment plants (WWTPs) offer comprehensive description of their involved biochemical and physical processes, it is a challenging task to calibrate the model for the operational plant. The article first presents a systematic calibrating procedure applied to the Activated Sludge Model No.1 (ASM 1), showing its potential to be extended to other WWTPs. It particularly addresses cases when comprehensive knowledge on the WWTP influent composition does not exist. An optimisation‐based approach is used for the WWTP model calibration and for finding the partially unknown influent composition. Dynamic model validation shows good match between model predicted values and WWTP measured data. Second, a new feed‐forward control strategy is designed for the WWTP and compared with the conventional nitrate‐nitrite nitrogen and dissolved oxygen control. The evaluation based on the effluent quality index, pumping and aeration energy and the number of effluent violations assessment tools, demonstrates incentives for the proposed control approach.",
author = "Abhilash Nair and Cristea, {Vasile Mircea} and Agachi, {Paul Serban} and Marius Brehar",
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Model calibration and feed‐forward control of the wastewater treatment plant : Case study for CLUJ‐Napoca WWTP. / Nair, Abhilash; Cristea, Vasile Mircea; Agachi, Paul Serban; Brehar, Marius.

In: Water and Environment Journal, Vol. 32, No. 2, 2017, p. 164-172.

Research output: Contribution to journalArticle

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AU - Cristea, Vasile Mircea

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AU - Brehar, Marius

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AB - Although the activated sludge models for waste water treatment plants (WWTPs) offer comprehensive description of their involved biochemical and physical processes, it is a challenging task to calibrate the model for the operational plant. The article first presents a systematic calibrating procedure applied to the Activated Sludge Model No.1 (ASM 1), showing its potential to be extended to other WWTPs. It particularly addresses cases when comprehensive knowledge on the WWTP influent composition does not exist. An optimisation‐based approach is used for the WWTP model calibration and for finding the partially unknown influent composition. Dynamic model validation shows good match between model predicted values and WWTP measured data. Second, a new feed‐forward control strategy is designed for the WWTP and compared with the conventional nitrate‐nitrite nitrogen and dissolved oxygen control. The evaluation based on the effluent quality index, pumping and aeration energy and the number of effluent violations assessment tools, demonstrates incentives for the proposed control approach.

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