Electrical filter board and application of same in highly concentrated organic wastewater

Abstract

The invention relates to an electrical filter board which is an anode-cathode integrated filter board prepared from an anode electrocatalysis material, a cathode electrocatalysis material and a microelectrolysis material or a plate-shaped anode or cathode filter board prepared from the anode or cathode electrocatalysis material, the microelectrolysis material and a conductive material. When the electrical filter board is cooperatively used with a novel parallel plate-type ultrasonic reactor in treatment of highly concentrated organic wastewater, a substantial synergistic effect is obtained; organic compounds in the wastewater are degraded into micromolecular compounds through reactions like electrocatalysis, microelectrolysis and electric flocculation initiated by the electrical filter board and through strongly oxidizing .OH generated by ultrasonic treatment, so biodegradability of the wastewater is improved; moreover, a mechanical shearing effect generated by ultrasonic treatment can effectively clean oxides on the electrical filter board, so disadvantages that a traditional electrocatalysis material easily undergoes inactivation and passivation and a traditional microelectrolysis material easily undergoes hardening are overcome, electrochemical reactivity is guaranteed, and treating efficiency is improved.

Description

technical field [0001] The invention relates to an electric filter plate and its application in treating high-concentration organic wastewater, belonging to the field of polluted wastewater treatment. Background technique [0002] With the rapid development of my country's chemical industry, various new chemical products are applied to all walks of life, especially in heavy polluting industries such as coking, chemical industry, electroplating, printing and dyeing. Serious environmental pollution problems are mainly manifested in: the concentration of organic pollutants in wastewater is high, the structure is stable, and the biochemical properties are poor. Conventional processes are difficult to achieve discharge standards, and the treatment costs are high, which brings great pressure to enterprises to achieve energy-saving and emission-reduction goals. The treatment of organic wastewater, especially high-salt and high-concentration organic wastewater, has always been a prob...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric filter plate, which is composed of anode electrocatalytic materials, Cathodic electrocatalytic materials, micro-electrolytic materials made of plate-shaped negative and anode integrated filter plates, or plate-shaped anode filter plates or cathode filter plates made of anode electrocatalytic materials or cathode electrocatalytic materials, micro-electrolytic materials, and conductive materials, The anode electrocatalytic material and / or the cathode electrocatalytic material are arranged on both sides of the micro-electrolytic filler or mixed in the micro-electrolytic filler; when the electro-catalytic material is mixed in the micro-electrolytic material, it is pressed into a plate shape, and the electro-catalytic material and the micro-electrolytic material The mixing mass ratio of the anode electrocatalytic material and the cathode electrocatalytic material is 2:1~1:1 when preparing the cathode and anode integrated electric filter plate.

Images