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The study of iron speciation as a marker of geochemical processes in River sediments

Weronika Wachowiak

Abstract

Bottom sediments are an integral part of the aquatic environment and play one the most important roles in the overall distribution of heavy metals. The composition of bottom deposits largely reflects the state of the river and the surrounding environment is conditioned by a number of natural factors, among others, geological structure of the basin, conditions, climate and anthropogenic factors. Physical and chemical changes occurring in the aquatic environment affect different content forms an element in the test facility, so its total content does not provide relevant information on bottom sediments. The presented study of the sediments from the river Parsęta in the province Zachodniopomorskie particularly the study focus on the content forms of iron (Fe(II) and Fe(III), and defining the content of iron in the complexed and total form of iron in fraction potentially mobile in the environment. The research material was collected from a 40-kilometer stretch of the upper river. To complete the picture of geochemical background of the investigated area also performed determination of the content of selected elements. Conducted research aimed at determining whether the origin of sediments and processes that take place after their deposition leave a mark on the content of the various forms of iron. It also examines whether content forms of iron and the content and correlations fully marked elements may explain the processes occurring in sediments after deposition on the bottom of the river. As a consequence, the iron (Fe) can be considered as a geochemical marker ("finger print").
Record ID
UAM7cb386b0fbd74a5f9f492395cda6660a
Diploma type
Doctor of Philosophy
Author
Weronika Wachowiak Weronika Wachowiak,, Undefined Affiliation
Title in Polish
Badania specjacji żelaza jako znacznika procesów geochemicznych w osadach rzecznych
Title in English
The study of iron speciation as a marker of geochemical processes in River sediments
Language
pl Polish
Certifying Unit
Faculty of Chemistry (SNŚ/WC/FoC)
Discipline
chemistry / (chemical sciences domain) / (physical sciences)
Scientific discipline (2.0)
6.5 chemical sciences
Defense Date
08-02-2016
End date
08-02-2016
Supervisor
URL
http://hdl.handle.net/10593/14278 opening in a new tab
Keywords in English
speciation techniques, speciation analysis, geochemistry, iron, rivers
Abstract in English
Bottom sediments are an integral part of the aquatic environment and play one the most important roles in the overall distribution of heavy metals. The composition of bottom deposits largely reflects the state of the river and the surrounding environment is conditioned by a number of natural factors, among others, geological structure of the basin, conditions, climate and anthropogenic factors. Physical and chemical changes occurring in the aquatic environment affect different content forms an element in the test facility, so its total content does not provide relevant information on bottom sediments. The presented study of the sediments from the river Parsęta in the province Zachodniopomorskie particularly the study focus on the content forms of iron (Fe(II) and Fe(III), and defining the content of iron in the complexed and total form of iron in fraction potentially mobile in the environment. The research material was collected from a 40-kilometer stretch of the upper river. To complete the picture of geochemical background of the investigated area also performed determination of the content of selected elements. Conducted research aimed at determining whether the origin of sediments and processes that take place after their deposition leave a mark on the content of the various forms of iron. It also examines whether content forms of iron and the content and correlations fully marked elements may explain the processes occurring in sediments after deposition on the bottom of the river. As a consequence, the iron (Fe) can be considered as a geochemical marker ("finger print").

Uniform Resource Identifier
https://researchportal.amu.edu.pl/info/phd/UAM7cb386b0fbd74a5f9f492395cda6660a/

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