Filter type electrochemical reactor, water treatment device and water treatment method

Abstract

The invention discloses a filter type electrochemical reactor, a water treatment device and a water treatment method. The filter type electrochemical reactor comprises a water distribution pipe, a plurality of layers of tubular porous electrodes and a tubular reactor wall which are sequentially embedded from the inside to the outside; openings of two ends of each tubular porous electrode and the tubular reactor wall are sealed by adopting a sealing structure, the water distribution pipe passes through the sealing structure, the water distribution pipe is provided with a water inlet, and a cavity body composed of one tubular porous electrode located at an outermost layer and the tubular reactor wall is provided with a water outlet; the water distribution pipe and the tubular reactor wall are separately prepared from a conductive material, and the water distribution pipe and the tubular reactor wall are set as a cathode; the plurality of layers of tubular porous electrodes are separatelyand alternately set as one anode and one cathode from the inside to the outside; and porosity of the tubular porous electrodes is greater than or equal to 45%. According to the electrochemical reactor, device and method disclosed by the invention, after organic wastewater passes through the tubular porous electrodes, the purpose of filtration, electrochemical oxidation and degradation of pollutants is realized in one step, the sewage purification time is short, and the efficiency is high; and moreover, the porous electrodes can improve turbulence of a water flow and improve efficiency of an electrochemical oxidation reaction, so that the filter type electrochemical reactor disclosed by the invention has the characteristics of high electrochemical oxidation efficiency and low energy consumption.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, more specifically, to a filter type electrochemical reactor, a water treatment device and a water treatment method. Background technique [0002] With the rapid development of my country's economy, the types and quantities of organic pollutants entering the water environment are increasing, and the problem of water environment pollution caused by organic waste is becoming more and more serious. For example, halogenated organic compounds (such as chloroform, perfluorinated compounds, etc.) are often used as solvents and surfactants in human production and life, and have been continuously detected in various environmental media in recent years. Most halogenated organic compounds are highly persistent, refractory and highly toxic in the environment. Studies have shown that long-term exposure to low doses of halogenated organic compounds can also cause long-term damage to aquatic organisms. ...

AI Technical Summary

Problems solved by technology

At present, the existing domestic patents aimed at improving the efficiency of electrochemical oxidation are mainly to modify electrode materials, such as boron-doped diamond electrodes, rare earth-doped oxide electrodes, titanium-based polyvinylidene fluoride-doped lead dioxide anodes, these Most electrodes are complicated to prepare, high in cost, and difficult to apply in actual wastewater treatment

Although there are also patent reports to improve the electrochemical device, they only change the form of the reaction device to strengthen the water flow turbulence, or simply assemble the combined equipment of electroflocculation / electric floatation and electrooxidation, so as to strengthen the removal effect of the device on pollutants. Complicated steps and low efficiency

[0005] Existing electrochemical reactors and water treatment devices have the problems of low electrochemical oxidation efficiency and high energy consumption. It is urgent to design electrochemical reactors and water treatment devices with higher electrochemical oxidation efficiency and lower energy consumption.

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