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| Titel |
Changes of the soil environment affected by fly ash dumping site of the electric power plant |
| VerfasserIn |
Jerzy Weber, Marta Gwizdz, Elżbieta Jamroz, Magdalena Dębicka, Andrzej Kocowicz |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250100244
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| Publikation (Nr.) |
 EGU/EGU2014-16142.pdf |
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| Zusammenfassung |
| In this study the effect of fly ash dumping site of the electric power plant on the surrounding
soil environment was investigated. The fly ash dumping site collect wastes form brown coal
combustion of Belchatow electric power station, central Poland. The dumping site is
surrounding by forest, where pine trees overgrow Podzols derived from loose quartz sands.
The soil profiles under study were located at a distance of 50, 100, 400 and 500 m from the
dumping site, while control profiles were located 8 km away from the landfill. In all horizons
of soil profiles the mpain hysico-chemical and chemical properties were determined. The
humic substances were extracted from ectohumus horizons by Shnitzer’s method,
purified using XAD resin and freeze-dried. The fulvic acids were passed through a
cation exchange column and freeze-dried. Optical density, elemental composition
and atomic ratios were determined in the humic and fulvic acids. Organic carbon
by KMnO4 oxidation was also determined in the organic soil horizons. The fly
ash from the landfill characterized by high salinity and strong alkaline reaction
(pH=10), which contributed significantly to the changes of the pH values in soils
horizons. The alkalization of soils adjacent to the landfill was found, which manifested
in increasing of pH values in the upper soil horizons. The impact of the landfill
was also noted in the changes of the soil morphology of Podzols analysed. As a
result of the alkalization, Bhs horizons have been converted into a Bs horizons.
Leaching of low molecular humus fraction – typical for podzolization – has been
minimized as a result of pH changes caused by the impact of the landfill, and originally
occurring humic substances in the Bhs horizon (present in the control profiles) have
been probably transported out of the soil profile and then into the groundwater. |
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