What is The Application of Dimensionally Stable Anode (DSA) in Wastewater Treatment?

Aug 16, 2022

What is The Application of Dimensionally Stable Anode (DSA) in Wastewater Treatment? 

Coated titanium electrode is also named DSA (dimensionally stable anode). This electrode is the main form of metallic oxide. The distance between anode and cathode will not change, so its electrode wear is small and the size is stable. This dimensionally stable anode has been widely used in the electrolysis industry because of its property, which brings lots of advantages.

DSA is a type of electro-catalytic electrode, which doesn’t have a shortage of graphite, platinum, lead alloy, and pbo2 electrode. The interelectrode distance of DSA doesn’t change during electrolysis and the size of the anode is stable, comparing graphite and lead alloy electrodes. It can ensure the operation of electrolysis in cell voltage is stable. DC consumption could decrease by 10% to 20% because of its low voltage and small power consumption. Titanium anode with long service life and good corrosion resistance can solve the problem of dissolution of graphite anode and lead anode, which could avoid polluting the electrolyte and products.DSA can also avoid short circuits after the deformation of the lead anode, which can improve the efficiency of electricity.

DSA’s technology of electrochemical reaction is mature as an insoluble anode. Currently, the insoluble anode is extensively used in the Chlor-alkali industry. Make chlorine and caustic by electrolysis of salt liquor. Chlorine evolution is the main reaction at the positive pole, meanwhile, the secondary reaction is oxygen evolution. Chlorine evolution potential can be significantly reduced by DSA, and bubbles of chlorine can digress easily.  

DSA is also widely used in electrolysis, in which DSA as the anode, insoluble anode plays the role of location and basal during electrolysis, such as separating out oxygen at the Pb-Ag anode. Treat Pb-Ag anode as the catalyst or electro-catalyst of the charge transfer reactions, while it doesn’t have the effect of increasing the electrode reaction. Catalytic noble metal oxides are covered base martial. The electric field of the electrode interface has a great influence on the reaction speed because of the electrocatalysis of noble metal oxides. The reaction speed can increase by 10 five orders of magnitude as the increase of overpotential during electrode reaction.DSA has high energy conversion efficiency because it can get lower overpotential as an insoluble anode.

What is the application of dimensionally stable anode (DSA) in wastewater treatment?
DSA, used as the main electrolysis method, has been widely developed in the process of high-concentration and refractory salinity wastewater in recent years. Electrochemical oxidation technology is adopted in treating wastewater, which can change the nature and structure of organic pollutants. It’s one of the important fields for environmental protection development, because it’s easy management operations, stable quality of output water, well decolorization effect, small usage of the land, and strong biodegradability.

DSA is widely used in the area of electroplating, electrolysis, and wastewater treatment. The electrode has an important function in electrochemical reactions, which has a great influence on the reaction speed and reaction mechanism. Meanwhile, electrode material has an important influence on many parameters, like momentum point during the electrochemical reaction. DSA plate, which has a long lifespan and no secondary pollution, can replace an anode plate, which has a big volume and heavy weight. It has other properties, like an easy process of many shapes, higher catalytic properties, and reusing substrate material. In conclusion, DSA has wide application prospects in electrochemical reactions.