Gewählte Master / Diploma Thesis:

Julia Kandlhofer (2014): VERGLEICH ZWEIER EISENMATERIALIEN ZUR SANIERUNG VON TCE-SCHADENSFÄLLEN MITTELS REAKTIVER WÄNDE.
Master / Diploma Thesis - Institut für Hydraulik und landeskulturelle Wasserwirtschaft (IHLW), BOKU-Universität für Bodenkultur, pp 80. UB BOKU obvsg

Data Source: ZID Abstracts

Abstract:

Permeable reactive barriers (PRBs) are a passive technology for in-situ groundwater remediation. Constructed downstream of a contamination plume, PRBs use the pressure gradient of the groundwater for the transportation of contaminants to the reactive barrier, where they are removed from the groundwater by interaction with the reactive material. A common application is the use of zerovalent iron as a reactive material for the treatment of chlorinated ethylenes. To evaluate the reactivity of the two commercial iron substrates iron sponge (Höganäs) and granular iron (iPutec) regarding the degradation of trichloroethylene (TCE), batch and column experiments were carried out. An initial TCE-concentration of 15 mg/l was chosen for all experiments, though a mixed contamination (TCE and Nickel(II) chloride) was used for one column experiment. In addition to the determination of degradation rates, batch experiments allowed to observe the effect of the pH on degradation. Up to a pH of 9, the degradation of TCE could be described by pseudo-first-order reaction rates, however, at a pH above 9, no degradation took place. Granular iron was used for column experiments. The main objective was the optimization of the experimental setup for the improvement of further column experiments.

Beurteilende(r): Loiskandl Willibald

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