Ashaki A. Rouff
Rutgers University
47 Papers
225 Citations
Ashaki A. Rouff is an academic researcher from Rutgers University. The author has contributed to research in topics: Struvite & Sorption. The author has an hindex of 20, co-authored 39 publications. Previous affiliations of Ashaki A. Rouff include State University of New York System & Queens College.
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Papers
Influence of pH on the Reductive Transformation of Birnessite by Aqueous Mn(II)
TL;DR: The results of this study suggest that aqueous Mn(II) is an important control on the mineralogy and reactivity of natural Mn-oxides, particularly in aqueously geochemical environments with neutral to alkaline pH values.
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Leaching characteristics of vanadium in mine tailings and soils near a vanadium titanomagnetite mining site.
TL;DR: The results suggest that the transport of vanadium to the subsurface is controlled primarily by the leaching processes occurring in soils, indicating the potential for high vanadium release following periods of drought.
172
Divalent Cd and Pb uptake on calcite {1014} cleavage faces: an XPS and AFM study.
Venkata Gopal Reddy Chada,Douglas B. Hausner,Daniel R. Strongin,Ashaki A. Rouff,Richard J. Reeder +4 more
TL;DR: Results showed that the exposure of calcite to a 1 microM Pb2+ solution resulted in ellipsoidal surface growths that were attributed to the nucleation of a PbCO3 bulk phase, whereas in the Cd circumstance, AFM showed comparatively flat growth features forming on the calcite surface even at concentrations down to 0.1 microM.
114
X-ray absorption spectroscopic evidence for the formation of Pb(II) inner-sphere adsorption complexes and precipitates at the calcite-water interface.
TL;DR: Combined batch sorption and in situ X-ray absorption spectroscopy provide direct assessment of the mechanisms for Pb(II) sorption atthe calcite--water interface under low-temperature conditions and provide the basis for predictions of Pb sequestration by calcite in natural systems.
95
Sorption of Chromium with Struvite During Phosphorus Recovery
TL;DR: Fourier transform infrared (FT-IR) spectroscopy revealed that both Cr(III) and Cr(VI) sorption resulted in distortion of the PO(4)(3-) tetrahedra in the mineral structure, revealing that even at low sorbed concentrations, the Cr impurity can affect the mineral surface and structure.
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