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Short Original Communications
A Comparative Study on the Recovery of Polycyclic Aromatic Hydrocarbons from Fly Ash and Lignite Coal (3pp)
Anastasia Arditsoglou; Eleni Terzi; Maria Kalaitzoglou; Constantini Samara
Corresponding author:: Constantini Samara, Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece (csamara@chem.auth.gr)
DOI: http://dx.doi.org/10.1065/espr2003.07.163
The recovery of polycyclic aromatic hydrocarbons (PAHs) from lignite coal burnt in Greek power stations and the fly ash produced is examined comparatively using Soxhlet, ultrasonic and accelerated solvent extraction procedures with various organic solvents. Soxhlet using toluene/methanol mixture and accelerated solvent extraction/toluene were found to be the most efficient methods for fly ash PAHs, yielding average recoveries of about 80%.
The accelerated solvent extraction/toluene procedure was superior for lignite PAHs, yielding 96% average recovery, whereas ultrasonic and Soxhlet extraction yielded relatively lower recoveries (75% and 67%, respectively). | | Keywords: accelarated solvent extraction; coal; fly ash; lignite; polycyclic aromatic hydrocarbons (PAHs); Soxhlet extraction; ultrasonic extraction |
10 ESPR (6) 354-356 (2003)
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