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Metal sulfide precipitation: Recent breakthroughs and future outlooks
(MDPI, 2021)
The interest in metal sulfide precipitation has recently increased given its capacity to efficiently
recover several metals and metalloids from different aqueous sources, including wastewaters
and hydrometallurgical ...
Tensile behavior of Cu50Zr50 metallic glass nanowire with a B2 crystalline precipitate
(Elsevier, 2018)
A molecular dynamics study of the effect of a single B2–CuZr precipitate on the mechanical properties of Cu50Zr50
metallic glass nanowires is presented. Four different samples are considered: three with a 2, 4 and 6 nm ...
Changing the conventional clarification method in metal sulfide precipitation by a membrane-based filtration process
(Elsevier, 2021)
The metal sulfide precipitation process is a widely studied technology used to recover metals or remove pollutants from different aqueous sources. However, the conventional clarification stage used to separate the generated ...
Sulfate and metal removal from acid mine drainage using sugarcane vinasse as electron donor: Performance and microbial community of the down-flow structured-bed bioreactor
(2021-06-01)
The down flow structured bed bioreactor (DFSBR) was applied to treat synthetic acid mine drainage (AMD) to reduce sulfate, increase the pH and precipitate metals in solutions (Co, Cu, Fe, Mn, Ni and Zn) using vinasse as ...
Diffusion and interface controlled reactions in alpha-(Cu-Al-Ag) alloys
(Elsevier B.V., 2007-08-30)
The isothermal kinetics of Ag precipitation was studied in Cu-Al-Ag alloys with concentrations ranging from 2 to 8 wt.%Al and 2 to 12 wt.%Ag, using scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy ...
Diffusion and interface controlled reactions in alpha-(Cu-Al-Ag) alloys
(Elsevier B.V., 2007-08-30)
The isothermal kinetics of Ag precipitation was studied in Cu-Al-Ag alloys with concentrations ranging from 2 to 8 wt.%Al and 2 to 12 wt.%Ag, using scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy ...
Enhanced metal recovery by efficient agglomeration of precipitates in an up-flow fixed-bed bioreactor
(2021-07-15)
In this study, a single-stage up-flow fixed-bed sulfidogenic bioreactor was operated for 288 days (six stages), treating mine-impacted water at different concentrations of nickel (Ni), cobalt (Co) and other associated ...
Sulfate removal rate and metal recovery as settling precipitates in bioreactors: Influence of electron donors
(Elsevier B.V., 2021-02-05)
Four down-flow structured bed bioreactors were operated targeting biological sulfate-reduction and metal recovery. Three different electron donors were tested: glycerol (R1), lactate (R2), sucrose (R3), and a blend of the ...