scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Exploration of geo-mineral compounds in granite mining soils using XRD pattern data analysis

01 Nov 2017-Vol. 263, Iss: 3, pp 032003
TL;DR: In this article, the major minerals present in granite mining waste and agricultural soils near and away from mining areas are identified by X-Ray Diffractometer (XRD) pattern data analysis.
Abstract: The purpose of the study was to investigate the major minerals present in granite mining waste and agricultural soils near and away from mining areas. The mineral exploration of representative sub-soil samples are identified by X-Ray Diffractometer (XRD) pattern data analysis. The morphological features and quantitative elementary analysis was performed by Scanning Electron Microscopy-Energy Dispersed Spectroscopy (SEM-EDS).The XRD pattern data revealed that the major minerals are identified as Quartz, Albite, Anorthite, K-Feldspars, Muscovite, Annite, Lepidolite, Illite, Enstatite and Ferrosilite in granite waste. However, in case of agricultural farm soils the major minerals are identified as Gypsum, Calcite, Magnetite, Hematite, Muscovite, K-Feldspars and Quartz. Moreover, the agricultural soils neighbouring mining areas, the minerals are found that, the enriched Mica group minerals (Lepidolite and Illite) the enriched Orthopyroxene group minerals (Ferrosilite and Enstatite). It is observed that the Mica and Orthopyroxene group minerals are present in agricultural farm soils neighbouring mining areas and absent in agricultural farm soils away from mining areas. The study demonstrated that the chemical migration takes place at agricultural farm lands in the vicinity of the granite mining areas.
References
More filters
Journal ArticleDOI
TL;DR: This review summarizes literature data on mechanisms involved in the immobilization process and presents results from laboratory and field experiments, including the subsequent influence on higher plants and aided phytostabilization, evaluating the stability of the oxide-based amendments in the treated soils and their efficiency in the long-term.

488 citations

Journal ArticleDOI
TL;DR: In this paper, the potential of using granite waste (GW) as raw material for geopolymer synthesis was investigated, and the results showed that the reactivity of GW is improved by alkali fusion method.

132 citations

Journal ArticleDOI
TL;DR: In this paper, the applicability of MGR as a sustainable alternative for cement replacement is investigated, specifically for such residues created in Brazil, and compressive strength, elastic modulus and water absorption tests are conducted to examine the mechanical performance of concrete containing MGR.

131 citations

Journal ArticleDOI
TL;DR: In this article, a colorimetric detection method for Cr (VI) in aqueous solution based on as synthesized silver nanoparticles (Ag NPs) without surface functionalization was presented.
Abstract: In this study we present a colorimetric detection method for Cr (VI) in aqueous solution based on as synthesized silver nanoparticles (Ag NPs) without surface functionalization. The method principle involves reduction of Cr (VI) to Cr (III) by excess reductant present in as synthesized Ag NP dispersion, and subsequent aggregation of Ag NPs by Cr (III) leading to red-shift of the surface plasmon resonance (SPR) peak. The UV-vis absorption spectra. Zeta potentials, dynamic light scattering measurements, and scanning electron microscopy (SEM) confirmed the aggregation of the Ag NPs. Under the optimized conditions, a good linear relationship (correlation coefficient r=0.981) was obtained between the ratio of the absorbance at 550 nm to that at 390 nm (A(550/390)) and the concentration of Cr (VI) over the range of 10(-3)-10(-9) M 50 mg/L to 50 ng/L]. The reported probe has a limit of detection down to 1 nM, which, to the best of our knowledge, is the lowest ever reported for the colorimetric detection of Cr (VI). Furthermore, a remarkable feature of this method is that it involves a simple technique exhibiting high selectivity to Cr (VI) over other tested heavy metal ions. (C) 2012 Elsevier BM. All rights reserved.

120 citations

Journal ArticleDOI
TL;DR: In this article, the feasibility of using two solid wastes in alkali activated slag composites as construction and building materials is evaluated, and the results indicate that both bottom ash and granite addition can be regarded as non-reactive phases.

120 citations