Bayer Electrofilter Fines as Potential Se(VI) Adsorbents

Materials interacting with inorganic selenium from the perspective of electrochemical sensing

“…One of Fe or Al's most significant advantages (hydr)oxides is their abundance and low price. In fact, they can be found also in waste material, as exemplified by Ayala and Fernández, who investigated the adsorption of Se oxyanion on "Bayer electrofilter fines" 151 the by-product particles from alumina fabrication. Interestingly, they have found relatively unchanging sorption capacity over quite a broad pH range with a significant drop at pH above 10, contrary to other studies reporting the drop of sorption capacity at pH about 6-7 151 .…”

Removal of zinc, cadmium and nickel from mining waste leachate using walnut shells

“…Conventional methods, including coagulation-flocculation, precipitation, filtration, liquid extraction, ion exchange, reverse osmosis, membrane separation, adsorption method and electrochemical treatment, have been used to remove or minimize the concentrations of heavy metal ions in industrial wastewater and municipal water supplies [2][3][4][5]. In recent years, various agricultural residues have been used as low-cost _________________________ adsorbents to remove heavy metals from solutions [6][7][8][9][10].…”