Mobilization of lead from highly weathered porous material by extracting agents

Article Abstract:

Experiments were held to evaluate the influence of clay mineralogy and soil organic matter on PB sorption and extraction using ethylenediaminetetraacetic acid and carboxymethyl B-cyclodextrin. The study is broken down into an introduction, an explanation of the materials and methods used in the experiment, and a discussion of the results.

United States, Science & research, Research & Development, Scientific Research and Development Services, High technology industry, Research institutes

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Chemical controls on colloid generation and transport in a sandy aquifer

Article Abstract:

The effect of changes in groundwater composition on the generation and transport of colloids from the vadose zone and water table aquifer was investigated. The results indicated that the mechanics underlying colloid formation and stabilization are different for surface and subsurface environments. Organic coatings controlled the surface properties of variable charge minerals. In subsurface environments, oxide minerals controlled surface reactivity.

Water, Underground, Groundwater, Colloids, Aquifers

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