Water treatment process and water treatment apparatus

Details Water treatment process and water treatment apparatus Water treatment process and water treatment apparatus

C - Chemistry, Metallurgy

02

F

C02F 3/06 (2006.01) C02F 3/10 (2006.01) C02F 3/30 (2006.01) C02F 3/34 (2006.01)

Patent

CA 2142609

The present invention is directed to provide a water treatment technology able to perform advanced purification treatment by efficiently removing synthetic organic compounds such as surface activators for use in cleaners and agricultural chemicals present in polluted water having a relatively low load of pollutants such as BOD. In order to accomplish this objective, water to be treated is brought in contact with a assimilable filter medium under aerobic conditions, said assimilable filter medium being composed by adhering a material to be assimilated that has specific assimilability for the target microorganisms to a porous base material such as charcoal. As a result of using this type of assimilable filter medium, specific microorganisms which are highly efficient for removing the synthetic organic pollutants to be removed can be utilized selectively, thereby enabling efficient removal of synthetic organic compounds.

Techniques d'épuration des eaux sous un haut rendement, consistant à extraire de manière efficace les composés organiques de synthèse, tels que les agents tensioactifs de détersifs et les composants de produits chimiques agricoles, contenus dans des eaux polluées présentant une charge relativement faible par exemple de demande biochimique en oxygène (DBO). Pour parvenir à cette fin, on utilise un milieu filtrant réalisé par dépôt d'un substrat présentant une aptitude spécifique à être utilisé par des micro-organismes cibles sur un matériau de base poreux, tel que du charbon de bois, et ce milieu filtrant permet de traiter les eaux à épurer par contact en conditions aérobies. Cette utilisation du milieu filtrant permet d'utiliser sélectivement ces micro-organismes spécifiques présentant une capacité élevée d'extraction des polluants organiques de synthèse et permet d'extraire ces composés organiques se synthèse de manière efficace.

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