Titanium anode applications: alkali industry, chlorine dioxide production, chlorate industry, hypochlorite industry, perchlorate production, hospital sewage treatment, persulfate production, food and equipment disinfection, ion water production; Titanium anode titanium electrode application fields: electrolysis production of non-ferrous metals, food utensils disinfection, electrolytic silver catalyst production, woolen mill dyeing and finishing wastewater treatment, electrolytic method manufacturing copper foil, steel plate galvanizing, electrolytic oxidation recovery of mercury, water electrolysis, battery production, Complete non-ferrous metal product lines such as cathodic protection, ionized water production, and printed circuit boards.
The titanium anode mesh in the below is a sample shipped today, in two sizes, with ruthenium-iridium coating.
And introduce the issues related to the principles of sewage treatment and water treatment:
Wastewater treatment technologies include sedimentation, filtration, flocculation, biodegradation, and electrolytic oxidation. Since electrolytic water treatment technology does not cause secondary pollution, it is called environmentally friendly technology or green water treatment technology. Moreover, for wastewater that cannot be treated by biodegradation, electrolytic oxidation has a significant effect. Therefore, electrolytic water treatment technology has become a research hotspot of water treatment technology, and has been widely used.
The basic principle of electrolytic water treatment technology is to make direct electrochemical reaction or indirect electrochemical conversion of pollutants on the electrode, that is, direct electrolysis or indirect electrolysis.
(1) Direct electrolysis
Direct electrolysis refers to the removal of contaminants from the wastewater by direct oxidation or reduction on the electrodes. Direct electrolysis can be divided into an anode process and a cathode process. The anode process is that the pollutants are oxidized on the surface of the anode and converted into less toxic substances or substances that are easily biodegradable, and even organic substances are inorganicized, thereby achieving the purpose of reducing and removing pollutants. The cathode process is the removal of contaminants on the surface of the cathode and 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 contaminants into less toxic substances. Indirect electrolysis is divided into a reversible process and an irreversible process. The reversible process (vehicle electrochemical oxidation) means that the redox species can be electrochemically regenerated and recycled during electrolysis. The irreversible process refers to a substance produced by an irreversible electrochemical reaction, such as a process of oxidizing an organic substance such as chlorate, hypochlorite, H2O2, and O3 having strong oxidizing properties, and an electrochemical reaction to produce a strong oxidizing intermediate. , including solvated electrons, •HO, •HO2, O2- and other free radicals.
In the electrolysis process, the electrode acts as an electrocatalyst, and the difference in electrode material can change the order of magnitude of the electrochemical reaction rate. Therefore, proper selection of the electrode material is an effective way to improve the electrocatalytic activity.
All electrolysis techniques are based on the basic theory of electrochemistry, and cyclos electrolysis is no exception. The traditional electrolysis technique is to place the anode and cathode in a slow flowing or stagnant tank. Under the action of the electric field, the anion moves toward the anode, and the cation moves toward the cathode. By controlling certain technical conditions, the metal cation to be obtained is at the cathode. Electrodeposition is obtained to obtain an electrolytic product. Titanium anode for cyclone electrodeposited copper (titanium anode for cyclonic electrolytic etching solution, titanium anode for copper for cyclonic electrolytic microetching liquid)
Cathodic reaction: Titanium anode for galvanic deposition of copper (titanium anode for copper recovery by cyclone electrolytic etching solution, titanium anode for copper by cyclone electrolysis micro-etching liquid)
Metal ions are used to form electrons at the cathode to form a titanium anode for metal flow electrodeposition copper (a titanium anode for recycling electrolytic etching liquid, a titanium anode for recycling electrolytic micro-etching liquid for copper)
Me+(aq)+e-→Me(S) Titanium anode for galvanic copper deposition (titanium anode for cyclone electrolytic etching solution, titanium anode for copper electrolyzed by cyclone electrolytic microetching solution)
Anode reaction: Titanium anode for galvanic deposition of copper (titanium anode for copper recovery from cyclone electrolytic etching solution, titanium anode for copper for cyclone electrolysis micro-etching liquid)
The electrons obtained from the cathode need to be balanced by the loss of electrons from the anode. There are several possible reactions in the anode. The most important reaction is the oxidation of water in the solution to produce oxygen. The reaction is as follows:
2H2O →O2(g)+4H++4e-Titanium anode for galvanic deposition copper (titanium anode for copper recovery by cyclone electrolytic etching solution, titanium anode for copper recovery by cyclone electrolysis micro-etching solution)
When the concentration of the metal in the electrolyte is lowered, it is difficult to ensure that the metal is reduced at the cathode without other reaction. The most prone chemical reaction at low metal concentrations is hydrogen production, as follows:
2H+(aq)+2e- →H2(g) Titanium anode for galvanic deposition of copper (titanium anode for copper recovery by cyclone electrolytic etching solution, titanium anode for copper by cyclonic electrolytic microetching liquid)
The cyclone electrolysis technique is based on the difference in the theoretical precipitation potential of each metal ion, that is, the metal branch to be extracted has a large potential difference with other metal ions in the solution system, and the metal having a positive potential is preferentially precipitated at the cathode. The key is to eliminate the adverse factors of electrolysis caused by concentration polarization by high-speed solution flow, and avoid the limitation of traditional electrolysis process affected by various factors (ion concentration, precipitation potential, concentration polarization, overpotential, pH value, etc.). , can produce high quality metal products through simple technical conditions.