The invention relates to a method for carrying out oxidation treatment on organic waste water by utilizing a three-dimensional
electrode electro-fenton and a device thereof. The device comprises a reactor shell, a carbon material
cathode, an iron plate
anode, a three-dimensional particle
electrode of a
fixed bed, a direct-
current voltage-stabilizing power supply, a microporous
aeration plate and an
air pump, wherein a reactor consists of a
reaction chamber and a
gas chamber; the carbon material
cathode, the iron plate
anode and the particle
electrode are positioned in the
reaction chamber at the upper part of the reactor; and the
gas chamber is formed between the bottom of the reactor and the microporous
aeration plate. After
direct current is introduced, the iron
anode is oxidized to generate iron ions,
oxygen in the
gas chamber is reduced on the surface of the
cathode to generate
hydrogen peroxide, and the iron ions and the
hydrogen peroxide form a
fenton reagent to oxidize and remove organic matters in waste water; and simultaneously, due to the particle electrode, the contact area and the
contact time of the waste water and the
fenton reagent are increased, and the
mass transfer effect of the waste water in the reactor is reduced. The invention is applicable to treatment of various types of organic waste water, the equipment is compact, the operation is easy, the whole reactor is easy to control, and the requirements of an actual
water treatment unit are met.