Application of the parameters of sorption of selected hydrophobic organic compounds onto the sediment organic matter for the assessment of their availability in the sediment-water system. [Doctoral dissertation] | Primena sorpcionih parametara odabranih hidrofobnih organskih polutanata na organskoj materiji sedimenta za procenu njihove dostupnosti u sistemima sediment-voda. Doktorska disertacija
2009
Trickovic, J.
In order to assess the ecotoxocological risks of contaminated soils/sediments to the environment and design the appropriate remediation strategy or predict the fate and transport of organic pollutants in contaminated zones, it is necessary to understand the mechanisms of sorption/desorption at the level of the mechanism of established bonds. Study of the sorption and desorption of selected hydrophobic organic pollutants, pentachlorobenzene and lindane, on sequentially extracted humic acids and humins from a single sediment sample with the aim of finding the relationship between the structural characteristics of the isolated humic acids and humin and sorption and desorption parameters. Sorption affinity, nonlinearity of isotherms, and apparent sorption-desorption hysteresis were correlated to the sorbent characteristics obtained from elemental analysis and FTIR spectroscopic data. With the aim of further insight into the sorption mechanism, investigation of desorption kinetics of three chosen hydrophobic organic compounds, pentachlorobenzene, lindane and pantachloroaniline, in the presence of solid adsorbent XAD-4 macroporous ion-exchange resin was performed.
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