Lead Dioxide Coated Titanium Plate Electrode for Landfill Leachate Treatment

Lead Dioxide Coated Titanium Plate Electrode for Landfill Leachate Treatment

Landfill leachate is a very offensive liquid produced by the solid waste disposal in an aerobic environment. It is well known as one of the most serious environmental problems due to the high concentrations of refractory organic matters and inorganic toxic compounds. The contaminated water may contain suspended solids, soluble nutrients (nitrogen and phosphorus), heavy metals (including mercury, cadmium, lead, chromium, copper), pathogens, helminthes and many toxic chemicals. Due to complex chemical composition of landfill leachate, the treatment of leachate is the most important concern for solid waste management. Nowadays electrochemical processes (EPs) present a way to treat leachate in an effective, relatively safe, and economically feasible manner. A sequence of processes are designed: electro-coagulation (EC), electro-oxidation (EO) and sulfate radical-based advanced oxidation process (SR-AOP). Obviously, employing different types of anode materials plays a dominant role, and substantially influences both reaction selectivity and efficiency. YUXI's lead dioxide coated titanium anode is found to have an excellent removal performance for chemical oxygen demand (COD), ammonia (NH3-N), color and heavy metals, especially in EO process.
Lead Dioxide Coated Titanium Mesh for Non-ferrous Metal Electrowinning

Lead Dioxide Coated Titanium Mesh for Non-ferrous Metal Electrowinning

Electrometallurgy is an important method used in metallurgy for extraction of metals from aqueous solutions by electrolysis. It is usually the final stage in metal production, and therefore is preceded by pyrometallurgical or hydrometallurgical operations. This electro-extraction (EE) process can be used in winning of metals from molten-salt solution (leaching) and purification of crude metals obtained via the hydrometallurgical routes. To meet the requirements of energy efficiency, economic viability and environmental sustainability, electrometallurgy is recognized as an attractive way in industrial community. However, a clean and efficient electrolysis process relies mostly on a reliable inert anode. Thanks to its low oxygen overvoltage and superior structural integrity, YUXI's titanium-based anodes present optimal performance in sulfate electrolytes and good resistance to the chemical effects of oxygen liberated on the anode surface.

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