Denitrification process and system

Details Denitrification process and system Denitrification process and system

C - Chemistry, Metallurgy

02

F

C02F 3/00 (2006.01)

Patent

CA 2620824

A process and system for denitrification of wastewater. The process includes the steps of measuring an influent flow rate, measuring influent concentrations of nitrates, nitrites, and dissolved oxygen in the wastewater, and using the influent concentrations to determine a nominal amount of methanol to be provided for denitrification. The invention also contemplates the measurement of effluent concentrations of nitrates and nitrites (i.e., NOx), and optionally using the effluent concentrations to adjust the nominal amount of methanol being provided.

L'invention concerne un procédé et un système pour dénitrifier des eaux usées. Ce procédé comprend les étapes consistant à: mesurer un débit d'influent, mesurer des concentrations d'influent en nitrates, en nitrures et en oxygène dissous dans les eaux usées, et utiliser les concentrations d'influent pour déterminer une quantité nominale de méthanol à fournir pour une dénitrification. L'invention consiste également à mesurer des concentrations d'effluent en nitrates et en nitrures (à savoir, NOx), et éventuellement à faire appel à ces concentrations pour ajuster la quantité nominale de méthanol en train d'être fournie.

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