Reversible photoreductive deposition and oxidative dissolution of copper ions in titanium dioxide aqueous suspensions

Article Abstract:

Copper ions were removed and concentrated in aqueous solutions by a cyclic process of photodeposition, separation and oxidation using a particulate titanium dioxide. Experiments involved a volume reduction process which was demonstrated by photodeposition and air oxidation. The separation of copper ions from organics using only light and air was demonstrated by the overall process.

Methods, Analysis, Usage, Oxidation-reduction reaction, Oxidation-reduction reactions, Titanium dioxide, Copper ions, Sedimentation and deposition, Deposition (Geology)

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Effect of electric arc vitrification of bottom ash on the mobility and fate of metals

Article Abstract:

Japanese municipal solid waste incinerators reduce the mobility of Cr, Cu, Zn, Pb, and Ca and remove Pb and Zn through vitrification of the bottom ash. The effect of electric arc vitrificaiton of bottom ash in regards of the mobility of metals is investigated.

Japan, Science & research, Refuse systems, Solid Waste Incineration, Solid Waste Combustors and Incinerators, Brief Article, Environmental aspects, Refuse disposal industry, Waste management industry, Incineration, Solid wastes, Vitrification of pollutants, wastes, etc.

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