| 摘要 |
PROBLEM TO BE SOLVED: To provide a method which obtains stable treated water quality with safety and without wastefully consuming energy even when water quality changes during wastewater treatment by electrolysis. SOLUTION: In the electrolytic treatment method where organic wastewater is subjected to electrolytic treatment using a conductive diamond electrode to decompose COD components, a gas generated by the electrolysis is mixed with a dilution gas for reducing hydrogen concentration in the generated gas, the concentration of carbon dioxide and/or oxygen in the mixed gas is measured, and the quantity of electricity per the amount of the organic wastewater in the electrolytic treatment is controlled from the measured value. An electrolytic treatment apparatus comprises an electrolytic cell with the conductive diamond electrode for electrolyzing the organic wastewater to decompose the COD components, a mixing part for introducing the dilution gas into the generated gas, a measuring instrument for measuring the concentration of carbon dioxide and/or oxygen in the mixed gas, and a controller for controlling an electric current value or the amount of the organic wastewater from the signals from the measuring instrument. COPYRIGHT: (C)2009,JPO&INPIT
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