Method for oxidative treatment of aqueous liquids

Details Method for oxidative treatment of aqueous liquids Method for oxidative treatment of aqueous liquids

C - Chemistry, Metallurgy

02

F

C02F 1/461 (2006.01) C02F 1/72 (2006.01)

Patent

CA 2586490

The invention relates to a method for oxidative treatment of aqueous liquids by means of oxidants. In this method, the aqueous liquid is passed through an electrolysis reactor, in which highly aggressive oxidants (0H-, 03, H2 02) are produced in the electrochemical decomposition of the water. Black and/or grey water is used as the aqueous liquid, which is liberated from coarse particles and mechanically broken up thereafter, before it is passed into the electrolysis reactor. Gaseous portions are released and inorganic residual components are filtered out. The remaining residual liquid, which consists substantially of water, can be introduced into a fresh, wash- and/or rinse water system.(only figure)

Die Erfindung bezieht sich auf ein Verfahren zur oxidativen Behandlung von wässrigen Flüssigkeiten vermittels von Oxidationsmitteln. Bei diesem Verfahren wird die wässrige Flüssigkeit durch einen Elektrolyse-Reaktor geleitet, in welchem hoch aggressive Oxidationsmittel (OH-, O3, H2 O2) bei der elektrochemischen Zersetzung des Wasser erzeugt werden. Es wird als wässrige Flüssigkeit Schwarz- und/oder Grauwasser eingesetzt, das von Grobstoffen befreit und mechanisch zerkleinertwird, bevor es in den Elektrolyse-Reaktor geleitet wird. Gasförmige Anteile werden freigesetzt und anorganische Restbestandteile herausgefiltert. Die verbleibende Restflüssigkeit, die im Wesentlichen aus Wasser besteht, kann in ein Frisch-, Brauch- und/oder Spülwassersystem eingeleitet werden.

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