Publications
Chosen filters:
Chosen filters:
Quantification of bio-physico-chemical properties of intertidal sediment at different spatial scales using remote sensing KU Leuven
Coastal-erosion models require accurate and detailed information on bio-physico-chemical properties of intertidal sediments. In this article, the potential of remotely sensed data at different spatial scales for the quantification of sediment properties was assessed. The focus on specific absorption features of water at 1450 nm, clay at 2206 nm and chlorophyll-a at 673 nm provided a physically based approach and interpretable results. The ...
Multimodality of a particle size distribution of cohesive suspended particulate matters in a coastal zone KU Leuven
Particle Size Distributions (PSDs) of suspended particulate matters in a coastal zone are log-normal and multimodal in general. The multimodal PSD, which is caused by the mixing of multiple particle and aggregate size groups under flocculation and erosion/resuspension, is a record of the particle and aggregate dynamics in a coastal zone. Curve-fitting software was used to decompose the multimodal PSD into subordinate log-normal PSDs of primary ...
Competition between kaolinite flocculation and stabilization in divalent cation solutions dosed with anionic polyacrylamides KU Leuven
Divalent cations have been reported to develop bridges between anionic polyelectrolytes and negatively-charged colloidal particles, thereby enhancing particle flocculation. However, results from this study of kaolinite suspensions dosed with various anionic polyacrylamides (PAMs) reveal that Ca(2+) and Mg(2+) can lead to colloid stabilization under some conditions. To explain the opposite but coexisting processes of flocculation and ...
A Two-Class Population Balance Equation Yielding Bimodal Flocculation of Marine or Estuarine Sediments KU Leuven
Bimodal flocculation of marine and estuarine sediments describes the aggregation and breakage process in which dense microflocs and floppy macroflocs change their relative mass fraction and develop a bimodal floc size distribution. To simulate bimodal flocculation of such sediments, a Two-Class Population Balance Equation (TCPBE), which includes both size-fixed microflocs and size-varying macroflocs, was developed. The new TCPBE was tested by a ...
A Two-Class Population Balance Equation Yielding Bimodal Flocculation: Development and Validation for Marine Sediments KU Leuven
Bimodal flocculation of marine and estuarine sediments describes the aggregation and breakage process in which dense microflocs and floppy macroflocs change their relative mass fraction while developing a bimodal floc size distribution. To simulate bimodal flocculation of marine and estuarine sediments, a two class population balance equation (TCPBE), which includes both size-fixed microflocs and size-varying macroflocs, was developed. The new ...