JP2012024711A5 - - Google Patents

Description

The invention according to claim 3 is an electrochemically promoted oxidation apparatus for generating OH radicals and ozone in which at least the cathode on the OH radical generation side is a granular electrode and the granular electrode is multiplexed and filled .

In the invention according to claim 7, ozone water is generated by an external or internal separate system ozonizer, and accelerated oxidation is generated using an electrochemically accelerated oxidation treatment apparatus that generates OH radicals and ozone to the ozone water. Liquid purifier.

According to the invention which concerns on Claim 3, the moving speed of ozone improves and simultaneous production | generation of ozone and OH radical becomes easy.

According to the invention of claim 7, UV irradiation is another means for generating an accelerating effect in ozone water by generating ozone water with an external or internal separate ozonizer and generating accelerated oxidation on the ozone water. In case of turbidity or coloring of the treated water, the transmittance is extremely reduced and accelerated oxidation cannot be performed, or the risk is not common and high as in the case of γ-ray irradiation. There are no problems such as low practicality such as addition of ₂ O ₂ , photocatalyst, and addition of high alkali, and it is easy to adjust the current value and voltage value from the outside by electrolysis with an ozonizer, and it is also effective for turbidity and coloring The accelerated oxidation effect can be obtained easily and efficiently without being easily affected.

Claims (7)

  Electrochemically promoted oxidation to generate OH radicals and ozone, characterized in that ozone and OH radicals are generated in the water to be treated only by energization, and the generation ratio can be arbitrarily adjusted by current value or voltage. Processing equipment.   An ozone generating electrode such as SnO2 or PbO2 electrode, Pt electrode, Au electrode, Pd electrode, RuO2 electrode, and glassy carbon electrode is used as the anode, and a conductive electrode such as Ti, Ti / Pt, iron, stainless steel, and carbon is used as the cathode. 2. The electrochemically promoted oxidation treatment apparatus for generating OH radicals and ozone according to claim 1, wherein each of the electrodes is immersed in the apparatus and the electrode areas are greatly different. The electrochemically accelerated oxidation treatment apparatus for generating OH radicals and ozone according to claim 1 or 2, wherein at least the cathode on the OH radical generation side is a granular electrode, and the granular electrodes are multiplexed and filled .   The electrochemically promoted oxidation treatment for generating OH radicals and ozone according to any one of claims 1 to 3, wherein treated water can be drained arbitrarily in an apparatus in which the anode or cathode is immersed. apparatus.   Rather than generating ozone externally and dissolving it in the water to be treated, it was directly generated electrolytically in the water to be treated, and at the same time, part of the ozone was converted into OH radicals with high efficiency and at any speed. An electrochemically promoted oxidation treatment apparatus for generating OH radicals and ozone according to any one of claims 1 to 4.   Generates ozone and OH radicals in the water to be treated only by energization, and generates ozone and OH radicals by adjusting the generation ratio arbitrarily according to the current value. Electrochemical accelerated oxidation process.   Ozone water is generated by an external or internal separate system ozonizer, and the electrochemically promoted oxidation treatment apparatus for generating OH radicals and ozone according to any one of claims 1 to 5 is used for the ozone water. Liquid purifier that generates accelerated oxidation.