Record details

Title
    Trace element speciation in fluidized bed coal combustion by-products
Statement of responsibility
    Petr Sulovský
Author
    Sulovský, Petr
Language
    anglicky
Source title - monograph
    Applied Mineralogy in Research, Economy, Technology, Ecology and Culture, Proceedings of the Sixth International Congress on Applied Mineralogy ICAM 2000, Göttingen, Germany, 17-19 July 2000
Pages
    s. 687-690
Notes
    1 tab., 8 bibl.
    il.
Subject group
    arzén
    kovy těžké
    mineralogie technická
    odpad průmyslový
    odpad rizikový
    oxidy
    prach
    prvky stopové
    severočeská pánev
    síra
    sulfáty
    uhlí hnědé
    úpravnictví
    železo
Geographical name
    ČR-Čechy
Keyword
    Bed
    By-products
    Coal
    Combustion
    Element
    Fluidized
    Speciation
    Trace
Abstract (in english)
   The speciation of potentially hazardous elements in residues from fluidized bed combustion (FCB) residues and products made of the was studied with Noth Bohemian lignitous coal. The FCB residues differ significantly from those prepared by classical technologies in phase composition as well as in trace element speciation. The content of some (esp. volatile) elements is higher in FCB residues, yet their form of occurrence is less environmentally dangerous and could be made even less hazardous by pelletization. Important factors enhancing the fixation of practically all studied trace elements are high alkalinity of the residues, ensured by surplus alkaline additive premixed with the sulfide-rich coal, and enhanced formation of ettringite in pelletization of the residue. In North Bohemian coals, high arsenic risk can be lowered by using FBC technology (in contrast to classical one) and further minimized by residue pelletization.
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    28. 3. 2008
Import date
    8. 8. 2012