4th EucheMs chemistry congress

Poster Session 1
s912
chem. Listy 106, s587–s1425 (2012)
Poster session 1 - Environmental Chemistry
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environMentAL ProteCtion riSKS of heAvy
MetAL ContAMinAted wood CoMBuStion.
h. KováCS 1 , K. SzeMMeLveiSz 1
1 University of Miskolc, Department of Combustion Technology,
Miskolc, Hungary
Numerous industrial activities polluted the environment in
the past decades, whereupon heavy metals piled up in the soil in
a bigger measure than the natural concentration. The soil pollution
caused by means of toxic metals accelerated up since the
beginning of the industrial revolution. Many sites were left behind
following the industrial restructuring in Hungary, with polluted
soil, therefore the utilization of these contaminated sites remained
unsolved. The utilization of these sites requires the remediation
of soil. The aim of our research is to select plant species that are
able to decrease of the pollutant concentration of the soil by their
accumulation ability and they grease the skids for energetic
utilization of underutilized areas by their combustion. The heavy
metal content of the biomass fuel is transferred into the
combustion residues therefore it is necessary to analyze the
hazards, the heavy-metal content and the treatment opportunities
of these materials. The selected area in Gyöngyösoroszi was a
mining area polluted with heavy metals. 5 wood species (Robinia
pseudoacacia, Salix fragile, Populus tremula, Betula pendula,
Pinus sylvestris, Quercus robur) were examined here. The
composition of the woody materials was examined with Flame
Atomic Absorption Spectrometry. The toxicity of the ashes was
confirmed with leaching tests. Our studies confirmed the previous
assumptions that before the energetic utilization of biomasses
coming from areas polluted with heavy metals, a thorough
examination is necessary concerning combustion technology and
environmental protection.
Keywords: contaminated biomass; heavy metals; combustion;
4 th EucheMs chemistry congress
P - 0 1 0 5
CoMPoSition And SourCeS of fine PM in An
induStriAL AreA: Porto MArGherA (itALy)
M. MASioL 1 , S. SquizzAto 1 , G. rAMPAzzo 1 ,
B. PAvoni 1
1 Universita Ca’ Foscari, Scienze Ambientali Informatica e
Statistica, Venezia, Italy
Industrial emissions are mainly characterized by analyzing
PM, gaseous pollutants, involved in the secondary aerosol
formation processes, and some hazardous air pollutants such as
heavy metals, volatile organic compounds and polycyclic
aromatic hydrocarbons. In this study a chemometric approach,
including factor analysis and multiple linear regression analysis
has been applied to PM chemical data and cluster analysis was
used to process wind data. The aim was to identify the main
sources of PM, their mass composition and relationship with local
atmospheric circulation.
Samples have been collected in Malcontenta (Venice), a site
selected in the surroundings of the industrial zone of Porto
Marghera to be representative of an industrial emissive scenario
being the most extended industrial area in Italy, with chemical and
metallurgical works, oil-refineries, incineration and thermoelectric
power plants burning coal, gas and refuse derived fuel.
About 190 PM samples have been analyzed to be
2.5
representative of different environmental conditions. Major
inorganic ions and elements have been determined by ion
chromatography (F- , Cl- - 2- + + + 2+ 2+ , NO , SO4 , Na , NH4 , K , Mg , Ca ),
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ICP-OES (Zn, Fe, Mn, Mg, Ca, Ti, Al) and ICP-MS (V, Ni, Cu,
As, Cd, Ba, Pb).
Results from the factor analysis show 5 main sources of PM.
- + The most important one links As, Cd, Pb, NO and NH4 and
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represents the local contribution to PM of typical industrial
markers such as As, Cd, Pb and secondary inorganic aerosol
- + components (NO , NH4 ). The second source includes crustal
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materials and correlates Al, Ca and Mg. The third source is
2- characterized by the Ni – V –SO association and identifies the
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fossil fuel combustion processes. The fourth source highlights a
contribution from vehicular emissions linking Cu and Ba (tyre
and brake abrasion) and K + and Cl- (gasoline vehicle emissions).
The last source is related to the marine aerosol (Na + , Cl- ).
Keywords: Transition metals; Arsenic; Cadmium; Lead; Ion
chromatography;
AUGUst 26–30, 2012, PrAGUE, cZEcH rEPUbLIc