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| Deepagoda Thuduwe Kankanamge Kelum Chamindu |  |
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| Project title: | Gas and colloid transport processes and properties and their relations to soil interacting architecture |
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Description: |
The effectiveness of risk assessment in relation to groundwater quality and soil physical health depends mainly on our understanding of the emerging soil-physical transport processes and properties and their relation to soil functional structure (pore and particle networks). Despite the significant progress achieved during last few years, the magnitude and importance of key soil-physical processes remain poorly understood yet and the essential links with the soil interacting architecture still continue to be missing. My PhD. Study mainly focuses on measurement and modeling of two key soil-physical processes, gas transport and colloid transport, in perspective of bridging the missing links and soil architecture fingerprinting which will eventually contribute to improve present risk assessment models. The gas transport studies will 1. Characterize ‘space soils’ (prospective growth media to be used in space) for gas diffusivity fingerprints across a range of soil moisture contents. 2. Compare the effect of compaction of urban soils on gas diffusion with respect to varying moisture contents .Will VOCs prefer to migrate under the building (heavily compacted) or next to the building (normally compacted)? 3. Observe the effect of vegetation management and organic matter gradient (across a hydrological catchment) on gas transport.And the colloid transport studies will focus on transport and retention (attachment and straining) of soil colloids in natural porous media. |
| Supervisors: | Prof. Per Møldrup, Aalborg University, pm@bio.aau.dk, 45-96358460. |
| Planned int. stay: | Saitama University, Japan, Department of Civil & Environmental Engineering, 9 months, Prof. Toshiko Komatsu |
