University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Bernd Felderer
(2006):
Phytosanierung von Rohöl-Kontaminirten Böden im Gefässversuch.
Master / Diploma Thesis,
BOKU-Universität für Bodenkultur.
UB BOKU
obvsg
- Abstract:
- Phytoremediation of crude-oil contaminated soils could be an effective remediation-technology. A literature review showed that 23 % of the investigated plants led to increased mineral-oil dissipation compared to the unplanted control, whereas in 72 % of the planted treatments there was no significant difference (LSD>0.05), 5 % of the plants caused even decreased mineral-oil dissipation. Due to heterogeneous data in the literature on phytoremediation of crude-oil contaminated soils a pot experiment was conducted to investigate the effect of three different plant species (Robinia pseudoacacia, Phragmites australis, Populus japonica) on crude-oil dissipation in two soils (loamy sand, clayey loam), with two fertilizer amendments (no fertilizer, fertilizer) after 150 days. The planted treatments showed lower crude oil-dissipation than the unplanted treatments in both soils. The soil-texture had no effect on the crude oil-dissipation. Fertilization led to enhanced dissipation only in the planted treatments of the loamy sand, but had no effect on the unplanted treatment of the loamy sand and on any treatment of the clayey loam. The main causes of dissipation may involve volatilization, biodegradation, reduced extractability due to the aging-effect and possibly the leaching of crude oil. Similar to most published data it remains unclear to which extent these processes play a role in dissipation of crude oil from soils.
- Beurteilende(r): Wenzel Walter