Periphyton filtration pre- and post-treatment system and method

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 3/32 (2006.01) C02F 1/32 (2006.01) C02F 1/50 (2006.01) C02F 1/78 (2006.01) C02F 9/04 (2006.01) C02F 9/14 (2006.01)

Patent

CA 2443008

Periphyton filtration is a known method for performing bioremediation of polluted water. The present system (10) improves upon this method by adding a strong oxidizer, such as ozone from an ozone generator (18) to the influent, and in some cases to the effluent to make organically bound nutrients available to a target culture in a periphyton bed (24) or to aquatic plants to reduce the population of undesirable microinvertebrates and to make organically bound nutrients available to the periphyton. A pesticide (P) may be added to control insect populations.

La filtration par périphyton est un procédé connu d'assainissement des eaux usées par voie biologique. Le système (10) décrit dans cette invention permet d'améliorer la mise en oeuvre dudit procédé par ajout d'un oxydant puissant, tel que l'ozone à partir d'un générateur d'ozone (18) à l'influent, et dans certains cas, à l'effluent de manière à préparer des éléments nutritifs organiquement complexés pour une culture cible dans le lit de périphyton (24) ou pour des plantes aquatiques afin de réduire la population de micro-invertébrés indésirables, et à préparer des éléments nutritifs organiquement complexés pour le périphyton. Un pesticide (P) peut être ajouté afin de réguler les populations d'insectes.

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