Evaluation of the Structure of Industrial Wastes

Abstract

The aim of this paper is to evaluate the structure of wastes from non-ferrous metals. Wastes from the production of metals were selected namely waste from the production of aluminum - red mud and the waste from the production of nickel - black nickel mud. Morphology of samples was documented by scanning electron microscope, phase analysis using diffraction techniques and the content of elements was determined by EDX analysis. The influence of pretreatment of these wastes on the structure was also investigated.

The Use of Red Mud and Black Nickel Mud in Sorption of 3,5-Dichlorophenol

“…RM usually contains many residual minerals from bauxite. Soldán and Kobetičová (2015) investigated the chemical composition (Table 1) of adsorbents by using a EDX analysis. In RM they identified anatas (TiO2), hematite (Fe2O3), limestone (CaCO3), halloysite (Al2Si2O5(OH)4) and gibbsite (Al(OH)3).…”

Heterogeneous Fenton-Like Oxidation of Methylene Blue Using Alternative Catalysts

“…BNMindustry waste from metal production, supplied from the area between Sereď and Dolná Streda, which was produced by leaching of nickel and cobalt from lateritic iron-ore in Niklová huta š.p . Soldán and Kobetičová (2015) investigated the chemical composition and surface morphology of those catalysts using the SEM and EDX analyses [20].…”

“…[19]. Yearly production of red mud in Slovakia was about 7 × 10 4 kg, and supplies are estimated at 8 million tons [20].…”

“…In Slovakia, nickel was produced in the southern edge of Dolnovažská niva. Annual production of BNM was about 3 × 10 5 kg, and supplies in Slovakia are estimated at 5.6 million tons [21,22].…”

Catalytic Ozonization of Phenol with the Use of Alternative Catalysts

“…It consists 50-80 % Fe, 3,2-3,5 % Cr 2 O 3 , 6-8 % SiO 2 , 6-8 % Al 2 O 3 , 2,5-3,5 % CaO, 0,06-0,18 % P 2 O 3 , 0,28-0,3 % Ni. [5]…”