Emerging technologies for in-situ remediation of metal contaminants in ground water.
Petrie-LM; Paulson-SE; Jones-PM
Abstract Book, U.S. Department of the Interior Conference on the Environment and Safety, April 24-28, 1995. Washington, DC: U.S. Bureau of Mines, 1995 Apr; :41
Many inactive/abandoned mines and other industrial sites on DOI lands have metal-contaminated waters; but size, hydrogeologic complexity, and remoteness often render conventional water pump-and-treat or source material excavation and treatment unfeasible. In-place or "in-situ" treatment is attractive because it minimizes materials handling, uses lower-cost "passive" technologies, protects workers, and can be used for remote contamination. However, success requires a thorough understanding of site specific geochemical and hydrologic processes affecting metal contaminants solubility and transport. The USBM "applied scientific research" approach to in-situ remediation technology development will be described. This approach includes: 1) detailed characterization of site hydrogeology and geochemistry; 2), characterization of contaminant phases and host mineralogy, 3) laboratory evaluation of fluid-rock reactivity, 4) hydrologic and geochemical modeling of site conditions, 5) engineering design, and 6) field demonstration of the technology. Current research on emerging in-situ treatment technologies will then be reviewed, with particular emphasis on metal contamination. For example, both DOE and EPA have active research and field demonstrations using in-situ remediation. These technologies and those under development may be applicable to DOI sites.
Water-analysis; Metal-compounds; Mine-shafts; Environmental-factors; Environmental-hazards; Geology; Laboratory-testing; Models; Waste-treatment
Conference/Symposia Proceedings; Abstract
U.S. Bureau of Mines