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Boron-Doped Diamond (BDD) Electrodes For Wastewater Treatment Boron-doped diamond (BDD) electrodes have high O2 overpotential, make them better suited for the direct oxidation of contaminants than metal oxide anodes. The high activity of the BDD anode toward organics oxidation has been explained by the presence of weakly adsorbed •OH formed by water electrolysis at the anode surface. In addition to oxidizing organic contaminants, BDD anodes can generate ozone, H2O2, as well as ferrate. BDD can also produce peroxydicarbonate, p

Physical-chemical and Electrochemical Methods for Landfill Leachate Treatment Landfill leachate contains various contaminants (i.e. organic and inorganic pollutants), of which the composition and content vary with geographic location, waste composition, age, pH, moisture content, and other landfill site characteristics.  Leachate requires pretreatment on-site to meet standards to discharge to wastewater treatment plants or directly into surface water.    Due to the variable composition of landfill leachate, it conta

What is advanced electrochemical oxidation? Electrochemical advanced oxidation processes (EAOPs) have been developed for the treatment of environmental pollution, especially focusing on water streams. EAOP can generate a very powerful oxidizing agent hydroxyl radical (•OH) in solution, this hydroxyl radical destroys organics up to their mineralization. EAOPs include heterogeneous processes like anodic oxidation and photoelectrocatalysis methods, in which •OH are generated at the anode surface either electrochemically o

Electrochemical oxidation processes have been used for treating various wastewater since it produces highly active hydroxyl radicals (•OH) that are promising in the removal of anions, toxic metals, pharmaceuticals, chromium, arsenic, organic pollutants, and bio-refractory wastewater. Various electrode materials include BDD, PbO2, Pt, Ti/IrO2, glassy carbon, SnO2-Sb and graphite have been investigated for the electrochemical oxidation of organic pollutants. Some anodes favor the selective oxidation or conversion of the organics