Lead Ion and Silicon Powder Deposition in a Sand Column Experiment

Bing Bai from Beijing Jiaotong University investigated the deposition characteristics of lead ions (Pb2+) in the presence of silicon powders during water seepage. The experiment used a long one-dimensional sand column, measuring concentrations of deposited materials and migration distance. Results show that silicon powders can promote or inhibit lead migration, depending on factors like particle size, concentration, and seepage velocity.

Use Cases

• Modeling contaminant transport in porous media based on particle size distribution data.
• Analyzing the influence of surface charge (zeta potential) on heavy metal deposition.
• Studying particle separation characteristics in flowing water based on migration distance measurements.

Strengths

• Data includes measurements of deposited Pb2+ and silicon powder concentrations along a migration distance.
• Particle-size distributions (PSDs) of deposited materials were obtained via laser diffraction.
• Microstructure photos of deposited particles were acquired through metallographic microscopy.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Bing Bai, Beijing Jiaotong University

Collection Method

Data gathered from a long one-dimensional sand column experiment with sampling and laser diffraction analysis.