Three-dimensional three-phase electrocatalytic oxidation system

Abstract

The invention discloses a three-dimensional three-phase electrocatalytic oxidation system, which comprises a reactor body, a first electrode tube, a second electrode tube, an aeration device, a particle filling material, a first sieve plate, a second sieve plate and a gas control valve, wherein the outer wall of the first electrode tube is attached to the inner wall of the reactor body; the secondelectrode tube separates an inner cavity of the reactor body into two water flow regions; a region inside the second electrode tube is a first water flow region; a region between the first electrodetube and the second electrode tube is a second water flow region; a gap is formed between the bottom of the second electrode tube and the inner bottom plate of the reactor body; an air outlet end of the aeration device is arranged at the bottom of the first water flow region; the gas control valve communicates with the air inlet end of the aeration device; the first sieve plate and the second sieve plate are arranged in the second water flow region; the particle filling materials are arranged in an enclosure space formed by the first sieve plate, the first electrode tube, the second sieve plate and the second electrode tube. The space between the electrodes can be regulated; an inner circulation system is formed through gas extraction, so that the reaction is more sufficient; the energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a three-dimensional three-phase electrocatalytic oxidation system. Background technique [0002] Three-dimensional electrode catalytic oxidation is a new type of oxidation technology. Compared with two-dimensional electrode catalytic technology, it has the advantages of mild operating conditions and no secondary pollution. In terms of structure, the main electrodes of the three-dimensional three-phase electrocatalytic oxidation system are stacked There are granular or detritus-like materials that constitute the packing bed and become particle electrodes under the action of an external electric field. Therefore, the three-dimensional three-phase electrocatalytic oxidation system not only greatly increases the area-to-volume ratio, but also speeds up the material transfer and improves the reaction efficiency. Therefore, it has been widely used in recent years. [0003] The...

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Problems solved by technology

Since the size of the solid cylindrical electrode in the middle is relatively fixed, the distance between the electrodes cannot be adjusted; and the particle packing in the three-dimensional three-phase electrocatalytic oxidation system can flow with the flow of water, although the particle packing can shorten the mass transfer distance and increase Large reaction area, but when the water flow in the system is not uniform, there will be a reaction dead angle, which cannot achieve a full reaction, and at the same time will cause the particle filler to accumulate too densely, which is prone to channel short circuit and increase the energy consumption of the device

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