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- W2183485255 abstract "Coal combustion for the generation of electricity can result in harm to the environment due to thebigproductionofflyandbottomashes.�Bottomashisrestrainedtogetherwiththecooling� water at the base of the boiler and may liberate soluble trace elements into the water. In Brazil thebottomashisnormallydepositedindesactivatedminesorlandfills.� Mostoftheflyashes,� incontrast,�arecapturedbyelectrostaticfiltersystems,�butasmallamountofvolatiletrace� elements escapes to the atmosphere through the chimneys, and may be deposited near the power plant. The contact of this material with soil in areas near the power plant can cause an increase in the concentrations of trace elements. The present study aims to make a comparison between trace elements values found in the coal,�intheflyandbottomashesandinthesoilscollectedneartheFigueiracoal-firedpower� plant, northern Parana state, to verify if there is contamination from coal combustion. The guiding values for this evaluation are indicated by the Brazilian Companhia de Tecnologia de Saneamento Ambiental (CETESB) and by the Dutch Soil Protection Act. Samplingwascarriedoutforcoalandflyandbottomashes,�fromJanuary�2006�untilFebruary� 2007,�tomonitorsystematicallythepropertiesofcoalandashesfromtheFigueiracoal-fired� powerplant.�Intotal,�12�samplesofcoalwerecollected�(6�samplesofbeneficiatedcoaland� 6�samplesofpulverizedcoal),�and�9�samplesofash�(6�samplesoffly-ashand�3�samplesof� bottom ash). Soil samples were collected covering distances ranging from 100 - 5000 m to the power plant, totaling 33 points, with 66 samples collected. At each point two samples were taken, one from surface (sample S1 = 10 to 20 cm deep,), the other one from a depth of 20 to 40 cm (sample S2). The collected samples were stored followed by preparation in the laboratory for analysis by Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) for determination of trace-elements. Consideringtheaveragetraceelementvaluesinbeneficiatedandpulverizedcoalsamples,�aswell� asthetraceelementcontentsinflyandbottomashes,�AsandZnwerefoundtobemostabundant,� whereastheothertraceelementswerecharacterizedbymuchlowervalues.�Inthebeneficiated �" @default.
- W2183485255 created "2016-06-24" @default.
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- W2183485255 date "2009-01-01" @default.
- W2183485255 modified "2023-09-24" @default.
- W2183485255 title "ABSTRACT: A Comparison of the Trace Elements Content in Coal, Fly and Bottom Ashes From the Figueira Power Plant, Paraná, Brazil and Soils Collected in the Vicinity of the Plant" @default.
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