Bioavailability and stability of mercury sulfide in Armuchee (USA) soil
Conference
·
OSTI ID:21156324
- Institute for Clean Energy Technology (ICET ), Mississippi State University, 205 Research Blvd. Starkville, MS 39759 (United States)
- Department of Plant and Soil Sciences, Mississippi State University, MS 39762 (United States)
Because of the adverse effects of elemental mercury and mercury compounds upon human health, the U.S. Department of Energy (DOE) is engaged in an on-going effort to monitor and remediate mercury-contaminated DOE sites. In order to more cost effectively implement those extensive remediation efforts, it is necessary to obtain an improved understanding of the role that mercury and mercury compounds play in the ecosystem. We have conducted pilot scale experiments to study the bioavailability of mercury sulfide in an Armuchee (eastern US ) soil. The effects of plants and incubation time on chemical stability and bioavailability of HgS under simulated conditions of the ecosystem have been examined, as has the dynamics of the dissolution of mercury sulfide by various extractants. The results show that mercury sulfide in contaminated Armuchee soil was still to some extent bioavailable to plants. After planting, soil mercury sulfide is more easily dissolved by both 4 M and 12 M nitric acid than pure mercury sulfide reagent. Dissolution kinetics of soil mercury sulfide and pure chemical reagent by nitric acid are different. Mercury release by EDTA from HgS-contaminated soil increased with time of reaction and soil mercury level. Chelating chemicals increase the solubility and bioavailability of mercury in HgS-contaminated soil. (authors)
- Research Organization:
- American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990 (United States); Technological Institute of the Royal Flemish Society of Engineers (TI-K VIV), Het Ingenieurshuis, Desguinlei 214, 2018 Antwerp (Belgium); Belgian Nuclear Society (BNS) - ASBL-VZW, c/o SCK-CEN, Avenue Hermann Debrouxlaan, 40 - B-1160 Brussels (Belgium)
- OSTI ID:
- 21156324
- Country of Publication:
- United States
- Language:
- English
Similar Records
Stability and bioavailability of mercury sulfide in Oak Ridge Soils
Phyto extraction and accumulation of mercury in selected plant species grown in soil contaminated with different mercury compounds
Occurrence and Stabilization of Colloidal and Nanoparticulate Mercury Sulfides (Final Technical Report)
Conference
·
Sun Jul 01 00:00:00 EDT 2007
·
OSTI ID:21290790
Phyto extraction and accumulation of mercury in selected plant species grown in soil contaminated with different mercury compounds
Conference
·
Sun Jul 01 00:00:00 EDT 2007
·
OSTI ID:21290789
Occurrence and Stabilization of Colloidal and Nanoparticulate Mercury Sulfides (Final Technical Report)
Technical Report
·
Sat Jun 01 00:00:00 EDT 2013
·
OSTI ID:1082964