Effects Of Redox Potentail On The Speciation Of Selenium In Ground Water And Coal Mine Backfill Materials Wyoming
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Author | : Katta Jayaram Reddy |
Publisher | : |
Total Pages | : 7 |
Release | : 1995 |
Genre | : Coal mine waste |
ISBN | : |
Download Effects of Redox Potentail on the Speciation of Selenium in Ground Water and Coal-mine Backfill Materials, Wyoming Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 76 |
Release | : 1995 |
Genre | : Groundwater |
ISBN | : |
Download Geochemical Processes and the Effects of Natural Organic Solutes on the Solubility of Selenium in Coal-mine Backfill Samples from the Powder River Basin, Wyoming Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 346 |
Release | : 1995 |
Genre | : Hydrology |
ISBN | : |
Download Water-resources Investigations Report Book in PDF, Epub and Kindle
Author | : Geological Survey (U.S.) |
Publisher | : |
Total Pages | : 74 |
Release | : 2000 |
Genre | : Geology |
ISBN | : |
Download New Publications of the Geological Survey Book in PDF, Epub and Kindle
Author | : Geological Survey (U.S.) |
Publisher | : |
Total Pages | : 38 |
Release | : 1990 |
Genre | : Groundwater |
ISBN | : |
Download Influence of Redox Potential on Selenium Distribution in Ground Water, Mendota, Western San Joaquin Valley, California Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 646 |
Release | : 2000 |
Genre | : Geology |
ISBN | : |
Download New Publications of the U.S. Geological Survey Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 976 |
Release | : 1993 |
Genre | : Agriculture |
ISBN | : |
Download Agronomy Abstracts Book in PDF, Epub and Kindle
Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).
Author | : A. A. Fadlelmawla |
Publisher | : |
Total Pages | : 7 |
Release | : 1994 |
Genre | : Environmental geochemistry |
ISBN | : |
Download Geochemical Processes Affecting the Mobility of Dissolved Selenium in Surface Coal Mine Backfill Environments Book in PDF, Epub and Kindle
Author | : Joan A. Oppenheimer |
Publisher | : |
Total Pages | : 44 |
Release | : 1984 |
Genre | : Groundwater |
ISBN | : |
Download Speciation of Selenium in Groundwater Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 220 |
Release | : 1991 |
Genre | : |
ISBN | : |
Download Selenium Transformation in Coal Mine Spoils Book in PDF, Epub and Kindle
The objective of this program was to conduct an environmental impact assessment study for selenium from coal mine spoils. The use of in-situ lysimetry to predict selenium speciation, transformation, and mobility under natural conditions was evaluated. The scope of the study was to construct and test field-scale lysimeter and laboratory mini-column to assess mobility and speciation of selenium in coal mine overburden and soil systems; to conduct soil and groundwater sampling throughout the state of Oklahoma for an overall environmental impact assessment of selenium; and to conduct an in-depth literature review on the solubility, speciation, mobility, and toxicity of selenium from various sources. Groundwater and surface soil samples were also collected from each county in Oklahoma. Data collected from the lysimeter study indicated that selenium in the overburden of the abandoned mine site was mainly found in the selenite form. The amount of selenite found was too low and immobile to be of concern to the environment. The spoil had equilibrated long enough (over 50 years) that most of the soluble forms of selenium have already been lost. Examination of the overburden indicated the presence of pyrite crystals that precipitated over time. The laboratory mini-column study indicated that selenite is quite immobile and remained on the overburden material even after leaching with dilute acid. Data from groundwater samples indicated that based on the current permissible level for selenium in groundwater (0.01 mg Se/L), Oklahoma groundwater is widely contaminated with the element. However, according to the new regulation (0.05 mg Se/L), which is to be promulgated in 1992, only 9 of the 77 counties in the state exceed the limit.