Electrochemical biofilm filter assembly, application thereof and reactor

Abstract

The invention discloses an electrochemical biofilm filter assembly for enhancing degradation of an intermediate product, a reactor with the assembly and application of the assembly in enhancing degradation of the intermediate product in sewage treatment. The assembly is suitable for decentralized and centralized sewage treatment. According to the assembly, two titanium meshes serve as cathodes andare arranged on the two sides of the membrane assembly respectively, a titanium-based tin-antimony electrode serves as an anode and is arranged on the inner sides of the two titanium meshes to form aclosed membrane cavity, a water outlet pipe and a peristaltic pump are connected above the membrane cavity, and the peristaltic pump operates in a pumping stop mode. Under a certain external voltage,hydroxyl radicals are generated on the surface of the anode, sewage is sucked into the membrane cavity through the titanium mesh cathodes, and when the sewage flows through the surface of the anode,organic pollutants in the water are oxidized and degraded. Meanwhile, a layer of attached biological membrane is gradually formed on the surfaces of the outer sides of the titanium meshes, oxidative degradation products of organic pollutants make contact with the biological membrane on the surface of the titanium mesh in a pumping stop mode, enhanced degradation is achieved, and therefore efficient degradation of the organic pollutants is achieved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment membrane reactor components, and in particular relates to an electrochemical biomembrane filter component for strengthening the degradation of intermediate products, a reactor with the component, and an application of the component in strengthening the degradation of intermediate products in sewage treatment . Background technique [0002] Drugs such as antibiotics, painkillers, anti-inflammatory drugs and hormones are the most commonly detected organic pollutants in the water environment. These compounds and their metabolites are discharged through their production sites, domestic sewage, medical wastewater and livestock after administration The excrement discharged into the surface water environment poses a potential threat to humans and other organisms. Electrochemical Advanced Oxidation Technology (EAOPs) has relatively mild conditions, simple operation, no chemical agent addition, a...

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Problems solved by technology

[0003] However, studies have shown that EAOPs are difficult to effectively mineralize organic pollutants, leading to the accumulation of intermediate products

In some researches, the electrochemical degradation process has been regulated through parameter optimization, and the mineralization effect has been partially improved. However, the complexity of the EAOPs reaction leads to the fact that the degree of mineralization of the parent compound and the generation of intermediate products may be affected by the water quality of a specific location, and the process regulation exists. A certain degree of difficulty; there are also studies to realize the transformation of intermediate products through process combination, and the difference of parent compounds puts forward higher requirements for the adaptability of coupling technology

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