Ralph M Bolanz

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Hematite (α-Fe2O3) - A potential Ce4+ carrier in red mud.

Ralph M Bolanz, Stefan Kiefer, Joerg Goettlicher, Ralph Steininger
The Science of the total environment
2018

Cerium is the most abundant rare earth element (REE) within the waste product of alumina production (red mud), but its speciation in this complex material is still barely understood. Previous studies… (More)

Chromate adsorption on selected soil minerals: Surface complexation modeling coupled with spectroscopic investigation.

Veronika Veselská, Radek Fajgar, +5 authors Michael Komárek
Journal of hazardous materials
2016

This study investigates the mechanisms of Cr(VI) adsorption on natural clay (illite and kaolinite) and synthetic (birnessite and ferrihydrite) minerals, including its speciation changes, and… (More)

Structural incorporation of As5+ into hematite.

Ralph M Bolanz, Mária Wierzbicka-Wieczorek, +4 authors Juraj Majzlan
Environmental science & technology
2013

Hematite (α-Fe2O3) is one of the most common iron oxides and a sink for the toxic metalloid arsenic. Arsenic can be immobilized by adsorption to the hematite surface; however, the incorporation of As… (More)

Thermodynamic properties of mansfieldite ( AlAsO 4 · 2 H 2 O ) , angelellite ( Fe 4 ( AsO

Juraj Majzlan, Ulla Gro Nielsen, +7 authors Martin Števko
2018

Thermodynamic data for the arsenates of various metals are necessary to calculate their solubilities and to evaluate their potential as arsenic storage media. If some of the less common arsenate… (More)

Structural incorporation of As5+ into rhomboclase ((H5O2)Fe3+(SO4)2 · 2H2O) and (H3O)Fe(SO4)2.

Ralph M Bolanz, Joerg Goettlicher, Ralph Steininger, Arkadiusz K. Wieczorek
Chemosphere
2016

Iron sulfates represent an essential sink for the toxic element arsenic in arid and semi-arid mining areas with high evaporation rates. Information about the structural incorporation of As(5+) in… (More)

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