a kind of ag 3 po 4 /tio 2 Device and method for combined treatment of refractory biodegradable organic wastewater with catalyst and low-temperature plasma

Abstract

The invention discloses an Ag 3 PO 4 / TiO 2 A device and method for jointly treating organic waste water refractory to biochemical degradation with catalyst and low-temperature plasma, the device includes a circular flat dielectric barrier discharge reaction device and a circular buffer container, and the circular flat dielectric barrier discharge reaction device includes separately connected AC A high-voltage electrode and a ground electrode are arranged opposite to each other on the positive and negative poles of the high-voltage power supply. A quartz dielectric plate and a circular reactor are arranged between the high-voltage electrode and the ground electrode. The water inlet and the water outlet of the circular reactor are respectively The circulating buffer container is connected to form a waste water circulation pipeline through a peristaltic pump, and the bottom of the circular reactor is evenly distributed with Ag 3 PO 4 / TiO 2 catalyst. The design of the device is simple and easy, and can make full use of a large amount of visible and ultraviolet light generated by dielectric barrier discharge to avoid light loss. At the same time, it can greatly improve the degradation efficiency of dielectric barrier discharge, with low equipment investment and strong universality.

Description

technical field [0001] The invention belongs to the field of biochemically degradable organic wastewater treatment, in particular to an Ag 3 PO 4 / TiO 2 The invention relates to a device for jointly treating organic waste water refractory to biochemical degradation with a catalyst and low-temperature plasma, and a method for treating waste water using the device. Background technique [0002] Refractory biodegradable organic wastewater refers to organic matter (including some metabolites of organic matter) that is decomposed by microorganisms at a slow rate and incompletely in the wastewater. Such pollutants are easy to accumulate in organisms and become potential water bodies. source of pollution. Such pollutants include polycyclic aromatic hydrocarbons, halogenated hydrocarbons, heterocyclic compounds, organic compounds, organophosphorus pesticides, surfactants, organic dyes and other toxic and refractory organic pollutants. The common characteristics of these substanc...

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Problems solved by technology

[0004] The object of the present invention is to utilize dielectric barrier discharge plasma synergy Ag 3 PO 4 / TiO 2 Catalyst technology to achieve efficient removal of organic matter in refractory biodegradable organic wastewater, and at the same time provide an Ag 3 PO 4 / TiO 2 A device and method for combined treatment of refractory biodegradable organic wastewater with catalyst and low-temperature plasma, in order to solve or alleviate the problem of water pollution caused by refractory organic matter, reduce the light loss of dielectric barrier discharge, and improve the degradation efficiency of dielectric barrier discharge devices

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