Influence of Geological Conditions during Peat Accumulation on Trace Element Affinities and Their Behavior during Peat Combustion

Abstract

The Philippi peat, NE Greece, constitutes one of the largest fossil fuel deposits in the Balkans and its potential use for power generation cannot be ruled out in the future. In this study, the concentrations of 43 trace elements (Ag,

Geochemistry of trace elements in Çan coal (Miocene), Çanakkale, Turkey

“…The determined correlation coefficient between Be and ash content (r ash = 0.82) indicates an inorganic association (Dai et al, 2005). Beryllium is reported to be associated with clay (Zhuang et al, 2000;Kalaitzidis et al, 2002). However, some studies show that Be has a strong organic affinity (Finkelman, 1995;Kortenski and Satirov, 2002).…”

Geochemistry of radioactive elements (U, Th) in coal and peat of northern Asia (Siberia, Russian Far East, Kazakhstan, and Mongolia)

“…In Filippi (Greece), the thickest peat deposit known at present, the U content in the ash ranges from 11 to 208 ppm. For Th, the range is 4.6 to 14.8 ppm (Kalaitzidis et al, 2002). Among 167 studied peat deposits in the forest-steppe zone of the southern Siberia, there are 35 deposits with the uranium content of higher than 0.01% (Roslyakov et al, 2004).…”

Geochemistry of beryllium in Bulgarian coals

“…Up to date, there are no direct evidences of the mode of occurrence of Be in coals, and in many coal deposits it has been deduced by the following indirect evidences: -A negative correlation between Be content in ash and ash implies organic association (Jedwab, 1960;Danchev and Lapinskaja, 1968;Kortenski and Sotirov, 2002), while positive correlation indicates the domination of inorganic affinity (Ren et al, 2004;Dai et al, 2005). -A positive correlation of Be with Al and Si in coal and peat points to major (Querol et al, 1997;Zhuang et al, 2000;Kalaitzidis et al, 2002) or an intermediate (Querol et al, 2001a) aluminosilicate affinity. On this basis in another deposit, partial organic and partial Al-Si affinity for Be has been suggested (Querol et al, 1999).…”