Water distribution and catalysis integrated falling film discharge plasma water treatment device

Abstract

The invention discloses a water distribution and catalysis integrated falling film discharge plasma water treatment device, belongs to the technical field of liquid treatment. The device comprises a discharge plasma electrode system, a high-voltage power supply and a water storage tank., wherein the discharge plasma electrode system is connected with the high-voltage power supply; a water body tobe treated is stored in the water storage tank; and water body is injected or circularly injected is through a water pump; and the electric plasma electrode system is divided into two forms of a corona (streamer) discharge plasma electrode system and a dielectric barrier discharge plasma electrode system according to that whether the system is an insulating medium or not. According to the device provided, discharge plasma occurs in a gas-phase environment with no influence of parameters of the water body to be treated, so that the plasma state is stable; the liquid film is uniformly distributed, the thickness of a porous material is adjusted to adjust liquid-holding thickness of the liquid film, so that the residence time of the water body in a reactor is prolonged; and the porous materialis utilized to integrate the water distribution and a catalyst carrier, so that the energy consumption and the operation cost are both reduced.

Description

technical field [0001] The invention belongs to the technical field of liquid treatment such as wastewater treatment, water supply treatment, groundwater and chemical reagent modification, etc., and relates to a discharge plasma water processor, in particular to a falling film discharge plasma water treatment device integrating water distribution and catalysis. Background technique [0002] At present, biological wastewater treatment technology is widely used in the treatment of industrial wastewater and urban domestic wastewater. However, for organic pollutants that are highly toxic and difficult to biochemically degrade in wastewater, there are problems of low treatment efficiency and inability to meet discharge requirements. The chemical method realizes the treatment of pollutants in the water body through chemical reactions by adding chemicals to the wastewater. However, due to the variety of pollutants in the polluted water body and the uneven concentration distribution,...

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Problems solved by technology

[0005] The present invention is aimed at the problem that it is difficult for the water film to form a uniformly distributed water film with a certain thickness on the low-voltage electrode plate or the wall of the low-voltage electrode cylinder, which leads to the unstable discharge state and the short time for the liquid to pass through the plasma region once, and the physical and chemical activity of the plasma. The problem of not being fully utilized, a falling film discharge plasma water treatment device integrating water distribution and catalysis is proposed

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