Treatment method for water containing nitrogen compounds

Details Treatment method for water containing nitrogen compounds Treatment method for water containing nitrogen compounds

C - Chemistry, Metallurgy

02

F

C02F 1/461 (2006.01) C02F 1/467 (2006.01) C02F 1/72 (2006.01)

Patent

CA 2225261

Waste water containing nitrogen compounds is treated by first breaking the nitrogen compounds down by electrolysis in the presence of chlorine ions. The electrolysis step converts chlorine ions to hypochlorite ions. The partially treated water is returned to a storage container. The hypochlorite ions oxidize the nitrogen compounds and are reconverted to chlorine atoms. The partially treated water then may be returned to the electrolysis container to regenerate hypochlorite ions. In a second step, the partially treated waste water is passed over a metal peroxide catalyst. The metal peroxide catalyst further breaks down the nitrogen compounds, and removes the excess hypochlorite ions.

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