Device capable of producing hydrogen peroxide and used for water treatment through electrolysis

Abstract

A device capable of producing hydrogen peroxide and used for water treatment through electrolysis applies a direct current stabilized voltage power supply to supply power and comprises an electrolysis bath, wherein the electrolysis bath is composed of a catholyte chamber, an anolyte chamber and a Nafion film; the catholyte chamber and the anolyte chamber are separated by the Nafion film; a cathode and an anode are respectively and closely clung to the two sides of the Nafion film; the device is characterized in that at least three air pipelines right opposite to the cathode are arranged in the catholyte chamber; the other ends of the air pipelines are connected with an air pump; the bottom of the catholyte chamber is connected with a water pipeline; water flows out through the top of the catholyte chamber, flows to the bottom of the anolyte chamber through a pipeline, moves from bottom to top and flows out through the top of the anolyte chamber. The device realizes that the hydrogen peroxide is generated while water treatment is performed through electro-catalytic oxidation by hydrogen peroxide synchronously, so that the adding of hydrogen peroxide is reduced, the unit operation cost is effectively lowered, and further, a remarkable effect is achieved in the treatment of micro-polluted water and industrial wastewater and advanced treatment of wastewater.

Description

technical field [0001] The invention belongs to the technical field of water pollution control, and in particular relates to a novel device for realizing water treatment by using an electrolysis method. Background technique [0002] With the continuous development of economy and society, various pollutants will inevitably be produced, which will bring about different degrees of water pollution problems. Electrocatalytic oxidation technology is one of the hot research directions in the field of water treatment at present, whether in sewage Both water treatment and water treatment have huge potential utilization value. Hydrogen peroxide, also known as hydrogen peroxide, has the chemical formula H 2 o 2 , itself is a clean oxidizing agent, the reaction product is oxygen and water, electricity H 2 o 2 Catalytic oxidation refers to the addition of H during electrolysis 2 o 2 , H 2 o 2 Under the action of anode destruction, highly oxidizing hydroxyl radicals are gene...

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Problems solved by technology

However, because hydrogen peroxide itself is relatively expensive, not suitable for long-distance transportation, unstable and easy to decompose, etc., the unit processing cost is relatively high in actual operation, resulting in electricity H 2 o 2 The application range of catalytic oxidation is greatly limited, so it is necessary to find an electrocatalytic oxidation device that can generate hydrogen peroxide itself

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