Predicting Aqueous Metal Species in a Stream Impacted by Mining Activity
| Autor: | Norman H. Crisp, Jerome L. Pitt, Leonard C. Ferrington, Rao Y. Surampalli |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Cadmium
Environmental Engineering Aqueous solution General Chemical Engineering chemistry.chemical_element Zinc engineering.material Geotechnical Engineering and Engineering Geology Metal Water column chemistry Galena visual_art Environmental chemistry visual_art.visual_art_medium engineering Water quality Water pollution Water Science and Technology |
| Zdroj: | Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management. 2:166-171 |
| ISSN: | 1944-8376 1090-025X |
| Popis: | The impact of mining activity in the Tri-State Mining District of Missouri, Kansas, and Oklahoma has resulted in continual exceedance in water quality standards in many surface waters including Short Creek in Galena, Kans. Critical heavy metals detected in Short Creek have been lead, cadmium, and zinc. Water column samples were collected at each of seven sites from May 1992 to May 1995 and were analyzed for temperature, pH, conductivity, and total PO43-,CO32-, Ca2+, Mg2+, Na+, SO42-, Ba2+, Cd2+, Pb2+, Mn2+, Fe2+, Ni2+, Al3+, and Zn2+. Using MINTEQ (a geochemical equilibrium speciation model for dilute aqueous systems that can be used to calculate the equilibrium composition of dilute solutions in laboratory or natural aquatic systems), probable concentrations of metal species were predicted to evaluate the potential for metals to be in a bioavailable form. The MINTEQ predictions demonstrated the presence of dissolved metals, including a dominant free metal ion. Aqueous components within the dissolved frac... |
| Databáze: | OpenAIRE |
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