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Integrated process control: development of an integrated control system to optimise biological carbon and nitrogen removal by waste water treatment plants

Objective

To improve process efficiency and effluents quality in waste water treatment in integrating results of techniques for on-line monitoring and process controls for processes such as aerobic carbon oxidation, anaerobic digestion, nitrogen removal through nitrification and denitrification in order to develop a supervisory system that manipulates flow patterns throughout the treatment plant.


This project will develop on-line sensors which can be used to optimise the nitrification and denitrification steps in nitrogen removal and the removal of carbon by both aerobic and anaerobic processes. Devices that will be examined include sensors to detect toxicity, bicarbonate buffering capacity, BOD loading, the progress of denitrification and sludge settle ability.

Local control loops will be developed around these individual sensors. After analysis of operational data and mathematical modelling (including neural networks), a supervisory hierarchical control system will be developed that uses fuzzy logic to counter the inherently uncertain nature of the bioprocesses involved. The control system will combine the data from the different sensors with the available process knowledge to adjust the distribution of flows in the optimal way.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Forschungszentrum Jülich GmbH
Address
Wihelm-johnen-straße
52405 Jülich
Germany

Participants (4)

GENT UNIVERSITY
Belgium
Address
653,Coupure Links 653
9000 Gent
NATIONAL RESEARCH COUNCIL OF ITALY
Italy
Address
Via Reno 1
00198 Roma
University of Glamorgan
United Kingdom
Address
Llantwit Road
CF37 1DL Pontypridd
Università degli Studi di Firenze
Italy
Address
Via Santa Marta 3
50129 Firenze