Self-adaptive method for regulating an effluent treating...

C - Chemistry – Metallurgy – 02 – F

Patent

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C02F 3/02 (2006.01) C02F 3/00 (2006.01) G05D 21/02 (2006.01)

Patent

CA 2437637

The invention concerns a method for regulating an effluent treating plant, in particular for waste water or sludge derived from that type of treatment, using in particular ponds and cells provided with aerating means, for eliminating carbonaceous, nitrogenous, phosphate pollutants and a regulating automaton operating on the analysis of the evolution of predetermined operating parameters of the plant. The invention is characterised in that: the automaton uses periods during which the station is under-loaded to impose on it abnormal operating conditions, and the automaton analyses the response of the plant to said abnormal operating conditions to update and optimise the plant operating parameters for heavy-load periods, by automatically adjusting the parametering of the automaton logic. In the implementing example, the method is used for controlling the aeration of a purification plant.

Procédé de régulation d'une station de traitement d'effluents, notamment d'eaux usées ou des boues qui résultent de ce type de traitement, mettant en oeuvre notamment des bassins ou cellules munis de moyens d'aération, en vue de l'élimination des pollutions carbonées, azotées, phosphatées et un automate de régulation fonctionnant sur l'analyse de l'évolution de paramètres de fonctionnement de la station choisis à l'avance, caractérisé en ce que :- l'automate utilise les périodes durant lesquelles la station est sous-chargée pour lui imposer des régimes de fonctionnements anormaux et- l'automate analyse la réponse de la station à ces régimes de fonctionnement anormaux pour réactualiser et optimiser les paramètres de fonctionnement de la station en vue des périodes de fortes charges, en ajustant automatiquement le paramétrage de la logique de l'automate. Dans l'exemple de mise en oeuvre, le procédé a été appliqué au contrôle de l'aération d'une station d'épuration.

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