An electrolytic dephosphorization device

Abstract

The invention relates to an electrolysis phosphorous removal device and belongs to the technical field of water treatment. The electrolysis phosphorous removal device comprises a water inlet area, an electrolysis area and a water outlet area, wherein the electrolysis area comprises a metal electrode, an ultrasonic system and an electrode controller; the water outlet area comprises an aerating system; the metal electrode adopts a circular electrode piece and is fixed on a rotation shaft; the ultrasonic system comprises an ultrasonic generator and an ultrasonic vibration piece; the electrode control system is used for periodically switching a positive pole and a negative pole of the electrode. According to the device, the positive pole and the negative pole of the electrode are washed by ultrasonic wave and are periodically switched; the deposition of the surface adsorbate of the electrode and the generation of oxide are effectively reduced; the electrode passivation is eliminated; by virtue of the rotary operation of the circular electrode, the electrode can be uniformly utilized; the electrolysis utilization rate is increased; the device is full-automatic in control, free of manual operation, free of addition of chemicals and excellent in phosphorous removal effect.

Description

technical field [0001] The invention relates to an electrolytic dephosphorization device, in particular to a device that eliminates the impact of water flow impact on the effect of electrolytic dephosphorization by setting a water inlet area; uses circular rotating electrolysis to make electrodes evenly utilized; cleans and controls the cycle of negative and positive electrodes through an ultrasonic system The utility model relates to an electrolytic dephosphorization device, which can reduce the deposition of adsorbate on the electrode surface and the generation of oxide, and eliminate the phenomenon of electrode passivation, and belongs to the technical field of water treatment. Background technique [0002] After biological treatment of low-carbon source sewage such as domestic sewage, the total phosphorus in the sewage often does not meet the discharge requirements, and other methods are required to further remove phosphorus; chemical phosphorus removal is widely used as ...

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Problems solved by technology

[0003] Electrode passivation and soluble metal anodes often occur in the process of electrolytic phosphorus removal. During the electrolysis process, the solid precipitates generated are deposited on the electrode surface, and the oxides generated during the reaction cover the anode, hindering the release of metal ions, and ultimately affect Phosphorus removal efficiency: At present, aeration is commonly used to eliminate the sediment deposited on the surface of the electrode, but during the aeration process, a large amount of oxygen dissolves into the water, which accelerates the generation of oxides on the electrode surface, making the electrode severely corroded and unable to perform electrolysis

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