Investigation of the uptake ability of fly ashes produced after lignite combustion

Mineralogical Composition of Suspended Particles Pm10 in the Ptolemais-Kozani Area, Macedonia, Greece

“…The amorphous materials (organic and inorganic) are contained in the: a) mined lignite, b) fly ash, c) bottom ash, d) stack-gas ash and e) various industrial materials used by man (e.g., Kantiranis et al, 2004Kantiranis et al, , 2005Kantiranis et al, , 2006. Table 1: a) The fly ash and the bottom ash contain mainly the minerals anhydrite, calcite, quartz, mica + clays and feldspars, b) The stack-gas ash contains mainly calcite and gypsum, c) The mined lignite contains the minerals calcite, mica + clays, quartz, feldspars and gypsum, d) The rocks, sediments, intermediate steriles, soils and building materials of the FlorinaPtolemais-Kozani basin contain the minerals calcite, mica + clays, quartz and feldspars (e.g., Filippidis et al, , 1996Filippidis et al, , 1997Kassoli-Fournaraki et al, 1992, 1993Triantafyllou et al, 2000;Kolovos et al, 2002;Mouhtaris et al, 2003;Kantiranis et al, 2004Kantiranis et al, , 2005Kantiranis et al, , 2006)and e) The minerals calcite, mica + clays, quartz, feldspars and gypsum, identified as suspended particles in the Canary Islands (Spain) and the city of Volos (Greece), originate from Sahara (Africa) (e.g., Alastuey et al, 2005;Kandler et al, 2007;Coz et al, 2009;Remoundaki et al, 2011;Kantiranis et al, 2012).…”

“…The semi-quantitative estimation of the percentage of total amorphous materials was achieved by comparing the area of each broad background hump, which represented the amorphous materials in each sample, with the analogous area of standard mixtures of minerals with different contents of natural amorphous material, scanned under the same conditions. The XRPD method is a very good, effective and useful tool for the determination of the percentage of amorphous materials contained in a natural or synthetic sample (Kantiranis et al, 2004(Kantiranis et al, , 2005(Kantiranis et al, , 2006.…”

“…During lignite combustion the mineral matter of lignite undergoes a series of physical and chemical changes. Some minerals contained in the lignite ashes (fly ash, bottom ash, stack-gas ash), are initial constituents of the mined lignite, while some others are formed during the combustion of the lignite or by the soaking of the fly and bottom ashes with water during its transportation by conveyor belt from the Power Plants to the ash disposal areas (e.g., Filippidis et al, , 1996Kassoli-Fournaraki et al, 1992;Kolovos et al, 2002;Kantiranis et al, 2005;Petrotou et al, 2012;Tsirambides and Filippidis, 2012;Nikolaidou, 2014).…”

The Mineralogical Composition of Thrace Zeolitic Rocks and Their Potential Use as Feed Additives and Nutrition Supplements

“…Semiquantitative estimates of the abundance of the mineral phases were derived from the XRD data, using the intensity (counts) of certain reflections, the density and the mass absorption coefficient of the identified minerals for CuKα radiation, the software MAUD-Material Analysis Using Diffraction with the RIETVELD method. The semi-quantitative estimation of the percentage of total amorphous materials was achieved by comparing the area of each broad background hump, which represents the amorphous materials in each sample, with the analogous area of standard mixtures of minerals with different contents of natural amorphous material, scanned under the same conditions Kantiranis et al, 2004Kantiranis et al, , 2005Kantiranis et al, , 2006b). …”

The Use of Heu-Type Zeolitic Tuff in Sustainable Agriculture: Experimental Study on the Decrease of Nitrate Load in Vadose Zone Leachates

“…Clay mineralogy was identified from air-dried, glycolated and heat-treated oriented samples scanned from 3 o to 23 o 2θ at a scanning speed of 1.2 o /min. The semi-quantitative estimation of the percentage of total amorphous materials was achieved by comparing the area of each broad background hump, which represented the amorphous materials in each sample, with the analogous area of standard mixtures of minerals with different contents of natural amorphous material, scanned under the same conditions (Filippidis and Kantiranis, 2007;Kantiranis et al, 2004Kantiranis et al, , 2005Kantiranis et al, , 2006.…”