Download or read book Characterization and Eh pH based Leaching Tests of Mercury containing Mining Wastes from the Sulfur Bank Mercury Mine Lake County California written by and published by . This book was released on 2001 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stabilization of Mercury in Waste Material from the Sulfur Bank Mercury Mine written by and published by . This book was released on 2004 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mercury Analysis of Sediments from Cores in Clear Lake Lake County California written by John D. Sims and published by . This book was released on 1978 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stabilization and Testing of Mercury Containing Wastes written by and published by DIANE Publishing. This book was released on 2001 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sulphur Bank Mercury Mine Superfund Site Clear Lake California written by Thomas H. Suchanek and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stabilization of Mercury in Waste Material from the Sulfur Bank Mercury Mine written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of short term and long term leaching tests to characterize fingerprint and rank mine waste material from historical mines in the Deer Creek Snake River and Clear Creek watersheds in and around the Montezuma Mining District Colorado written by and published by DIANE Publishing. This book was released on with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abandoned Mine Site Characterization and Cleanup Handbook written by Nick Cato and published by . This book was released on 2001-01-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook has been developed by the EPA as a resource for project managers working on addressing the environmental concerns posed by inactive mines and mineral processing sites. This is not policy or guidance, but a compendium of info. gained during many years of experience on mine site cleanup projects. Chapters: Overview of Mining and Mineral Processing Operations; Environmental Impacts from Mining; Setting Goals and Measuring Success; Community Involve. at Mining Waste Sites; Scoping Studies of Mining and Mineral Processing Impact Areas; Sampling and Analysis of Impacted Areas; Scoping and Conducting Ecological and Human Health Risk Assessments at Superfund Mind Waste Sites; Site Mgmt. Strategies; and Remediation and Cleanup Options.

Download or read book Assessment of Mercury and Methylmercury in Water Sediment and Biota in Sulphur Creek in the Vicinity of the Clyde Gold Mine and the Elgin Mercury Mine Colusa County California written by Roger L. Hothem and published by . This book was released on 2013 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Harmonization of Leaching Extraction Tests written by L. Heasman and published by Elsevier. This book was released on 1997-06-10 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a unique compilation on the use of leaching/extraction methods in different fields. The use of leaching test methods is increasing in various areas including: waste treatment and disposal; incineration of waste; soil clean-up and reuse of cleaned soil; sludge treatment. This has led to (and may increasingly lead to) the development of a large number of very similar tests in these different fields. However, these developments are taking place with no clear understanding of their mutual relationships. In view of these developments, efforts are needed to harmonize the leaching procedures that could be adapted for different matrices, as well as validate the use of existing tests in other fields. The development of a wide variety of leaching/extraction tests for different matrices is undesirable from a regulatory point of view and undesirable for industry. Clarity in testing is crucial in producer-consumer relations. This collective document will assist in improving the understanding of leaching from a variety of sources and will, where appropriate, help to bring together the approaches used in different technical fields and in different countries.

Download or read book Sediment Microbial Community Composition and Mercury Methylation at Four California Mercury Mines written by Katharine Margaret Batten and published by . This book was released on 2001 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stabilization and Testing of Mercury Containing Wastes written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stabilization of Mercury containing Wastes Using Sulfide written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Stabilization of mercury-containing wastes has received considerable attention recently, due to concerns about air emissions from typically used thermal treatment technologies. Because of the extremely low solubility of mercuric sulfide, sulfide-induced stabilization is considered to be an effective way to immobilize mercury while minimizing mercury emissions. However, little is known of the mechanisms involved. In addition, the process of sulfide-induced stabilization of mercury-containing wastes has not been sufficiently developed; therefore, further research is needed to optimize the process-controlling parameters. In this study, the stabilization of mercury-containing wastes was performed using sodium sulfide. Primary stabilization variables such as stabilization pH, sulfide/mercury (S/Hg) molar ratio, and stabilization time were investigated. Mercury stabilization effectiveness was evaluated using the Toxicity Characteristic Leaching Procedure (TCLP) and constant pH leaching tests. The effectiveness of mercury immobilization by sulfide was tested in the presence of various concentrations of interfering ions. The results demonstrate that stabilization pH and sulfide dosage have significant effects on the stabilization efficacy. It was found that the most effective mercury stabilization occurs at pH 6 combined with a sulfide/mercury molar ratio of 1. The mercury stabilization efficiency reached 99%, even in the presence of interferents. The constant pH leaching results indicate that sulfide-treated mercury wastes produce significantly higher mercury concentrations in high pH (pH>10) leachants relative to others. Nevertheless, the mercury stabilization efficiency was still as high as 99%, even with exposure of the wastes to high pH leachants. Therefore, it is concluded that sulfide-induced stabilization is an effective way to stabilize mercury-containing wastes. The treatment optimization study indicates that the combined use of increased dosage of sulfide and ferrous ions (S/Hg = 2 and Fe/Hg = 3 at pH = 6) can significantly reduce the interferences by chloride and/or phosphate during sulfide-induced mercury immobilization. Visual MINTEQ simulation results indicate that the precipitation of cinnabar is the main mechanism that contributes to the mercury stabilization by sulfide. However, the formation of soluble mercury sulfide species at excess sulfide dosage due to the common ion effect can cause mercury remobilization from sulfide sludge under conditions that can exist in the landfills.

Download or read book Use of Short term 5 minute and Long term 18 hour Leaching Tests to Characterize Fingerprint and Rank Mine waste Material from Historical Mines in the Deer Creek Snake River and Clear Creek Watersheds in and Around the Montezuma Mining District Colorado written by Philip L. Hageman and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Contamination from Uranium Production Facilities and Their Remediation written by and published by . This book was released on 2005 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The legacies of past uranium mining and milling continue to be of concern and require assessment and remedial action. This problem has been recognized in many parts of the world over the past three decades, but has received increased attention since the end of the Cold War. Considerable effort and resources have been expended in dealing with this legacy. However, it has to be noted that the search for uranium has covered almost all countries on the globe. The result in some countries is a legacy of numerous small scale mines and mills. For economic and other reasons, including less stringent environmental standards and awareness at the time, these operations may not have been properly closed out and made safe. The remediation strategies and techniques developed by major problem holders, such as the USA or Germany, often would be out of scale for the problems in other countries. Therefore an international workshop was organized in Lisbon from 11 to 13 February 2004 as a forum for the exchange of views and experiences of countries with smaller scale uranium mining legacies.

Download or read book Effects of Uranium mining Releases on Ground water Quality in the Puerco River Basin Arizona and New Mexico written by and published by . This book was released on 1997 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Waste Leaching Behaviour Test Influence of PH on Leaching with Continuous PH Control written by British Standards Institute Staff and published by . This book was released on 1915-03-31 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wastes, Waste handling, Leaching, Extraction, pH, pH control, Acids, Bases (chemical), Chemical analysis and testing, Determination of content, Physical property measurement