Item name: mmo coated titanium anodes for industrial wastewater treatment
Product specifications: 200-3000mm can be customized according to customer needs
Product color: electrode black
Material composition: titanium-based coated electrodes, and welding parts, etc.
Product use: electrolytic treatment of industrial wastewater, degradation of COD ammonia nitrogen
There are many methods for industrial wastewater treatment, and electrolysis water treatment technology is called environment-friendly technology, or green water treatment technology. Moreover, for wastewater that cannot be treated by biodegradation, electrolytic oxidation often has a significant effect. Therefore, electrolytic water treatment technology has become a research hotspot in water treatment technology and has been more and more widely used.
The basic principle of electrolysis water treatment technology is to make pollutants undergo direct electrochemical reaction or indirect electrochemical transformation on the electrode, that is, direct electrolysis or indirect electrolysis.
(1) Direct electrolysis
Direct electrolysis refers to the removal of pollutants from wastewater by direct oxidation or reduction on electrodes. Direct electrolysis can be divided into anodic process and cathodic process. The anode process is the oxidation of pollutants on the surface of the anode to convert them into less toxic substances or substances that are easily biodegradable, and even inorganic organic matter, so as to achieve the purpose of reducing and removing pollutants. The cathode process is the reduction of pollutants on the cathode surface to remove them, which is mainly used for the reduction and dehalogenation of halogenated hydrocarbons and the recovery of heavy metals.
(2) Indirect electrolysis
Indirect electrolysis refers to the use of electrochemically generated redox species as reactants or catalysts to convert pollutants into less toxic substances. Indirect electrolysis is divided into reversible and irreversible processes. A reversible process (mediated electrochemical oxidation) means that redox species can be electrochemically regenerated and recycled during electrolysis. Irreversible process refers to the use of irreversible electrochemical reactions to produce substances, such as the process of oxidizing organic compounds such as chlorate, hypochlorite, H2O2 and O3 with strong oxidizing properties, and can also use electrochemical reactions to generate strong oxidizing intermediates. , including solvated electrons, HO, HO2, O2- and other radicals.
In the electrolysis process, the electrode acts as an electrocatalyst, and the electrode material can change the order of magnitude of the electrochemical reaction rate, so the appropriate selection of electrode material is an effective way to improve the electrocatalytic activity. Titanium electrodes have been widely used due to their good electrocatalytic properties, high oxygen evolution overpotential and electrical conductivity.
Titanium electrodes for industrial wastewater treatment have the following characteristics:
①No impurities are generated in the electrolytic cell;
②It can be applied under the working conditions of different current densities;
③It can be applied to the electrode inversion system;
④The anode can be used repeatedly after recoating;
⑥ Can be used for organic compounds in the electrolyte
Coating systems for titanium electrodes for industrial wastewater treatment: platinum; iridium metal oxide; platinum iridium oxide
The product series of titanium electrodes for industrial wastewater treatment: titanium electrode plates, titanium mesh electrodes, titanium electrode rods, titanium electrode wires, etc., and can also be customized according to customer specific requirements.
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