Johan van LeeuwenUtrecht University | UU · Department of Earth Sciences
Johan van Leeuwen
Doctor of Philosophy
About
4
Publications
464
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18
Citations
Introduction
Two phase flow phenomena in porous media
Contaminant groundwater transport
Contaminant biodegradation in the subsurface
PFAS, atmospheric deposition; transport in the unsaturated zone
microplastics in soil
Publications
Publications (4)
Biodegradation of pollutants is a sustainable and cost-effective solution to groundwater pollution. Here, we investigate microbial populations involved in biodegradation of poly-contaminants in a pipeline for heavily contaminated groundwater. Groundwater moves from a polluted park to a treatment plant, where an aerated bioreactor effectively remove...
The anaerobic degradation of aromatic hydrocarbons in a plume originating from a Pintsch gas tar-DNAPL zone was investigated using molecular, isotopic- and microbial analyses. Benzene concentrations diminished at the relatively small meter scale dimensions of the nitrate reducing plume fringe. The ratio of benzene to toluene, ethylbenzene, xylenes...
Source zones containing tar, a dense non-aqueous phase liquid (DNAPL), can contaminate groundwater for centuries. A common occurrence of tar is at former Pintsch gas factories. Little is known about the composition and fate of contaminants dissolving from Pintsch gas tar DNAPL. In this study, we determined the composition and water-soluble characte...
