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Acid Leaching of Leather Tanning Sludges: Metals Behaviour
Leaching Leather Tanning Sludge Valorisation
2011/12/15
Sludges generated in leather tanning processing are very complex wastes with potential deleterious effect on the environment and its management constitutes a high cost for the companies. In this work,...
Bioaccumulation of metals by lichens:Uptake of aqueous uranium by Peltigera membranacea as a function of time and pH
Bioaccumulation aqueous uranium by Peltigera membranacea pH
2012/4/1
Uranium sorption experiments were carried out at ;258 C using natural samples of the lichen Peltigera membranacea. Thalli were incubated in solutions containing 100 ppm U for up to 24 h at pH values f...
The influence of water on the environment of transition metals in silicate glasses
The influence water environment transition metals silicate glasses
2012/3/30
The effect of water (5 H2O 1 OH) on the environment of Co21and Ni21 in albite glass was investigated by electronic absorption spectroscopy. The visible spectra of Co21-doped glasses change only slight...
Transition Metals in Llano Vermiculite Samples: an EPR Study
Carbonates Cw and Pulsed Electron Paramagnetic Resonance Spectroscopies Phase Transformation Vermiculite
2011/12/27
Abstract: Continuous wave and pulsed electron paramagnetic resonance spectroscopies combined with thermal and chemical methods were used to identify and characterize V(IV), Fe(III), Mn(II) and Cr(III)...