Lead Dioxide Coated Titanium Anode for Organic Wastewater Treatment

Lead Dioxide Coated Titanium Anode for Organic Wastewater Treatment

Lead dioxide coated titanium anode (Ti/Pb02) due to its high oxygen evolution potential, low price, relatively stable under the high positive potentials required, stability at high temperatures and ease of preparation are very popular for organic wastewater treatment.

Electrochemical oxidation is an efficient method for wastewater treatment by electrochemical combustion or degradation of organics. It promotes oxidation all the way down to CO2 and no by-products are left in the effluent. The choice of anode material for oxidation of organic compounds is a crucial factor; the anode should be stable over a wide range of anodic potentials and present a high overpotential for oxygen evolution.

Lead dioxide coated titanium anode (Ti/Pb02) due to its high oxygen evolution potential, low price, relatively stable under the high positive potentials required, stability at high temperatures and ease of preparation are very popular for organic wastewater treatment. Titanium works as a substrate for Pb02 deposition; because it is a reasonably good conductor, it is relatively cheap and has good mechanical strength, and can easily be machined and shaped, ensuring flexibility in electrode and cell designs.

UTron fabricates lead dioxide coated titanium anode for organic wastewater treatment and adopts high purity titanium as the substrates. The titanium substrate surface is pre-treat by sandblasting and then etched with oxalic acid solutions in a shorter time to make them rougher and more conducive. Pre-treatment of the titanium surface is the critical step prior to Pb02 deposition because it is essential to remove the insulating layer (ie: Ti02), get a clean surface, and also to produce a uniformly rough surface, which is important for the production of an adherent, stable, and high-quality deposit. This titanium based lead dioxide anode has excellent catalytic activity and stability performed outstanding organics degradation performance in organic wastewater treatment.