Electric flocculation device for disposing industrial wastewater difficult to biodegrade

Abstract

The invention discloses an electric flocculation device for disposing industrial wastewater difficult to biodegrade, and belongs to the technical field of electrochemistry. The main body structure comprises a vertical type subsider, a rotating motor, a rotating anode and a porous hollow cylindrical cathode. When the device operates, the wastewater flows from a water inlet at the upper end, a powersource is started, the anode and the cathode are powered on to react, and the rotating motor drives the anode to rotate. The rotating anode makes the wastewater be at the turbulent flow state alwaysin the reaction, and thus the phenomena of passivation and concentration polarization of the surface of the counter electrodes are effectively slowed down. The cathode promotes the generation rate andthe number of nascent hydrogen with the high adhesion due to the great large specific surface area, and pollutants in the wastewater are adhered to float together. The electric flocculation device issuitable for disposing industrial wastewater with any components, and industrialized application of the electric flocculation technique is achieved.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry, and in particular relates to a device for electrocoagulation treatment of refractory biodegradable industrial wastewater and the application of the device in the treatment of refractory biodegradable industrial wastewater. Background technique [0002] Industrial wastewater that is difficult to biodegrade has high chemical oxygen demand, poor biodegradability, high heavy metal content, and is often accompanied by high toxicity, high color and strong odor. At present, the widely used treatment technologies for this kind of wastewater mainly include activated carbon or diatomite adsorption technology, reverse osmosis membrane technology and wet oxidation technology. However, these technologies have problems such as secondary pollution caused by the process, troublesome equipment cleaning, complex process structure, and high equipment investment costs, which make the wastewater treatment ef...

AI Technical Summary

Problems solved by technology

[0004] In the traditional electrocoagulation process, the plates are densely arranged in a cuboid shape in the reaction tank. During the reaction process of this reaction device, due to the fast movement of ions in the electrolyte, the dense arrangement makes the mass transfer effect uneven, resulting in the plate The degree of surface passivation and concentration polarization is serious, so the power consumption is large, the plate loss is fast, and the current utilization rate of the reaction device is not high.

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