C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/52 (2006.01) A62D 3/30 (2007.01) C02F 1/28 (2006.01) C02F 1/56 (2006.01) C02F 1/72 (2006.01) C02F 9/00 (2006.01)
Patent
CA 2514377
A method of treating wastewater containing hardly decomposable harmful substances, characterized by comprising the steps of adding a coagulant to wastewater containing hardly decomposable harmful substances (A), performing solid-liquid separation into a liquid and a solid containing hardly decomposable harmful substances (B), and bringing the thus separated solid into contact with a peroxide to thereby decompose hardly decomposable harmful substances (C). This method enables efficiently and safely treating wastewater containing hardly decomposable harmful substances by means of low-cost facilities.
Cette invention concerne un procédé de traitement d'eaux usées renfermant des substances nocives difficilement décomposables. Ce procédé se caractérise en ce qu'il comprend les étapes consistant : à ajouter un coagulant aux eaux usées renfermant des substances nocives difficilement décomposables (A) ; à effectuer une séparation solide-liquide permettant d'obtenir un liquide et un solide contenant les substances nocives difficilement décomposables (B) ; et à mettre le solide ainsi séparé en contact avec un peroxyde afin que les substances nocives difficilement décomposables se décomposent (C). Ce procédé permet de traiter efficacement et en toute sécurité des eaux usées renfermant des substances nocives difficilement décomposables au moyen d'équipements peu coûteux.
Kawabata Takahiro
Machida Masashi
Miyamoto Hideo
Muramoto Takahisa
Ogoshi Shingo
Idemitsu Kosan Co. Ltd.
Smart & Biggar
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