Precious metals (PM) refining from E-waste recycling are based on hazardous hydrometallurgical processes, including cyanide leaching for gold or aqua regia palladium, which generates an important wastewater production. In this paper, we present electrochemical process, low viscous deep eutectic solvents ChCl:EG 1:2 and 1:3. Au Pd deposition parameters, but also palladium speciation were studied...

Bioavailability of some major and trace elements was evaluated in 1,993 topsoil samples collected across Campania region (Southern Italy). A main focus made on Al, Ca, K, Mg, Cu, Tl since they are linked, for different reasons, to agriculture. assessed by an extraction with ammonium nitrate the data were compared pseudo-total concentration determined Aqua Regia digestion. Geochemical maps bioav...

The current study investigates the energy consumption and corresponding global warming potential (GWP) of tellurium recovery from multimetal solution by use a tailored electrochemical approach based on electrodeposition-redox replacement (EDRR). A three-electrode cell was used to recover Te synthetically prepared pregnant leach similar PLS leached Doré slag (30% aqua regia, [Cu] = 3.9 g/L, [Bi]...

The Nitra river belongs to the most contaminated rivers in the Slovakia due the previous intensive industrial activity of several enterprises located in its neighborhood. The aim of the study was to estimate the risk of contamination of riverside sediments as well as alluvial soil in vicinity of Nitra river by dangerous heavy metals. Pseudototal content of risk metals (Pb and Cd) including all ...

The method of digestion as a part sample preparation is very important to determine the accuracy analysis result. In this study, methods wet and dry digestions were applied Fe content in several kinds spinach obtained from traditional market Denpasar Bali. This research aimed compare result by AAS using both methods. was divided into steps starting sampling, determination samples species, prepa...