In situ measurements of solution concentrations and fluxes of trace metals in soils using DGT

Article Abstract:

The newly developed technique of diffusive gradients in thin films (DGT) proved useful in in situ measurements of solution concentrations and fluxes of trace metals in soil. Results have revealed that an increase in sludge application causes a corresponding increase in the fluxes of available metals. The effectiveness of lies in its ability to accumulate metals in a well-defined geometry that allows the measurement of their supply from the solid phase.

Research and Development in the Physical, Engineering, and Life Sciences, Pollution Control R&D, Measurement, Pollution control research, Heavy metals, Diffusion bonding (Metals)

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Transport of humic-coated iron oxide colloids in a sandy soil: influence of Ca2+ and trace metals

Article Abstract:

Colloid mobility in soils, particularly the transport of humic-coated iron oxide colloids in a sandy soils and surface near groundwater aquifers, appears to be governed by adsorbed natural organic matter and solution ionic strength. Results indicated that the deposition rates of humic-coated hematite colloids increase as Ca2+ concentration increases.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Iron Compounds NEC, Colloids, Iron compounds, Ferric oxide, Humic acid, Humic acids

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In situ stabilization of soil lead using phosphorus and manganese oxide

Article Abstract:

The effects of manganese oxides and phosphorus on soil lead bioavailability in five contaminated soils are studied in order to find a technique for in situ soil amendment that will replace the tradition method of soil excavation. The study is described.

Manganous Oxide, Statistical Data Included, Lead, Illustration, Composition, Environmental sciences, Soil pollution, Soils, Soil amendments, Metal oxides, Phosphorus, Phosphorus (Chemical element), Manganese compounds

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