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Experimental investigation and numerical simulation of in-situ colloid mobilization, transport and colloid-facilitated transport of heavy metals in saturated soil

delete2026-06-02
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T
Thilini Gunawardhana *
T
T.K.K. Chamindu Deepagoda
DOI:10.1016/j.jconhyd.2026.105006delete
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Abstract

Abstract

En 中文
• Colloid-facilitated transport (CFT) was observed for Cd and Pb in saturated soils. • pH and ionic strength affect colloid mobilization and CFT. • Column tests show episodic release of colloid-bound metals in different conditions. • HYDRUS-1D and computational-based model reproduce breakthrough curves. • Leachate metal concentrations exceed WHO limits in CKDu-affected regions.
Keywords:
Colloid-facilitated transport
Heavy metals
Soil colloids
Groundwater contamination
Numerical modelling
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Journal

Journal of Contaminant Hydrology cover
Journal of Contaminant Hydrology
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The University of Melbourne
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lincoln university
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