Mining Waste Treatment Technology Selection Website. Helps regulators, consultants, industry, and stakeholders in selecting an applicable technology, or suite of …
The park is in Breitung Township, on the shore of Lake Vermilion in northern Minnesota's Vermilion Range. The mine is close to Minnesota State Highway 169, about 20 miles east of ia and 20 miles (30 km) west of Ely, or about 1 mile from Tower. It has become a popular tourist site, often visited on the way to and from Ely and the Boundary Waters …
Mining Waste Treatment Technology Selection Website. Helps regulators, consultants, industry, and stakeholders in selecting an applicable technology, or suite of technologies, which can be used to remediate mining sites. Decision trees guide users to a set of treatment technologies that may be applicable to a particular site situation.
The Ely Copper Mine in Vermont is using a vegetative cover for mitigation of ecological risk and reducing bioavailable metals. As a means to neutralize acids in copper mine tailings, greenhouse studies found that mixing tailings from an active OMYA limestone mining operation can be used, together with compost, to neutralize and improve soil.
Mine site resources on contamination assessment and characterization, waste types, cleanup technologies, modeling and site-specific case studies.
The Zortman Landusky mine is an inactive gold/silver mine located in the Little Colorado Rockies north Central Montana (Figure 1-1). Swift Gulch contains mining-impacted waters from a waste rock dump at the top of the drainage (Ionic Waters Technologies, Inc. n.d.). The site is accessible seasonally, and a mobile treatment system with a small footprint …
Multiple sites in southeast Ohio (Figure 1-1) with abandoned bituminous coal mines produce acidic conditions in surface water streams, pool water, ponds, and lakes. The primary problems in these water sheds are remaining coal process waste in soil and sediment contamination which then produce acidity of the water, releasing primary contaminants of …
The tunnel drainage entered the groundwater aquifer without treatment. A third source of mine-influenced water was the migration of untreated meteoric and actively applied leach water from the Bingham Canyon Mine waste rock dumps, which are located along the eastern and southern boundaries of the Bingham Mining District.
Copper Basin Mining Site is in the Lower Potato Creek Watershed near Ducktown, Polk County, in southeastern Tennessee near the North Carolina and Georgia borders and comprises an area of approximately 50 square miles adjacent to lands administered by the Cherokee National Forest (Figure 1-1). The Copper Basin, north of the Ocoee River, is ...
This course has hopefully provided you an understanding about the Mine Waste Team's guidance document on solid and aqueous mine waste. Today we have covered a general overview of the realm of mining related impacts that exist and how our technology guidance document can assist with the selection of a particular technology to address …
Applicability. Capping/covers and grading are applicable to the following situations: solid waste. high or low volume of material. remote, rural, or urban areas. solo technology or in conjunction with other remedies. Capping or covering of solid mining waste is an effective technology for isolating contaminants.
The guidance contains decision trees, technology overviews, case studies, and regulatory challenges. The mine waste team has collected 59 case studies on the treatment of …
Each technology is described, along with a summary of the applicability, advantages, limitations, performance, stakeholder and regulatory considerations, and lessons …
An application of the technology (see Sequatchie Valley Coal Mine Case Study) is a source treatment of MIW. It also describes the use of electromagnetic surveys to characterize the subsurface conductivity down to 120 m …
This Web-based Mining Waste Technology Selection site assists project managers in selecting an applicable technology, or suite of technologies, which can be used to remediate mine waste–contaminated sites. The site consists of decision trees, overviews of applicable technologies, case studies where these technologies have been …
The treatment zone may be created directly using reactive materials such as iron or indirectly using materials designed to stimulate secondary processes, such as by adding carbon substrate and nutrients to enhance microbial activity. In this way, contaminant treatment may occur through physical, chemical, or biological processes.
The most common applications of backfilling and subaqueous disposal involve placing solid mining waste under a water cover to restrict its exposure to atmospheric oxygen and thus limit the formation of acid rock drainage.
attend this training class to learn how to use the ITRC Web-based Mine Waste Technology Selection site to identify appropriate technologies, address all impacted media, access case studies, and understand potential regulatory constraints.
A number of the case studies (Table 10-1) included some form of institutional control following or in conjunction with treatment. The Government Accountability Office (GAO 2005) reports that AECs at Superfund sites and Resource Conservation Recovery Act (RCRA) facilities improve the protection of the public.
The ITRC Mining Waste Team developed a Web-based Guidance Document, "Mining Waste Treatment Technology Selection (MW-1)," to help regulators, consultants, …
The quantity of affected water being remediated is up to 2,000–10,000 gallons per minute. Chemical precipitation at the Cement Creek Mine includes lime neutralization and aeration and oxidation of reducing metals with the rotating-cylinder treatment system …
The Stowell Mine is an abandoned copper mine in massive sulfides. The mining properties were worked between 1890s and 1930s. Three portals have been plugged with concrete seals, but residual flows persist. Site is accessible by dirt road, but very steep terrain makes construction of treatment systems difficult.
Penn State Laboratory Bench Study (AKA Laboratory Bench Scale), Pennsylvania
The team has investigated, using case studies of field or lab tests, new or emerging technologies to minimize the threat from solid mining wastes. Following the collection of data and information on a suite of potentially available treatment technologies, the team concludes that regulatory flexibilities may allow for the following:
Project managers, regulators, site owners, and community stakeholders should attend this training class to learn how to use the ITRC Web-based Mining Waste Treatment …
At the Site, the primary impacts are from acidity, sulfate, and metals (aluminum, cadmium, cobalt, copper, iron, manganese, and nickel). Reclamation of the site falls under the provisions of the Clean Water Act (CWA) and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The primary treatment technology in place …
The objective of the survey was stated as follows: The ITRC Mining Waste Team is collecting case studies of tests and full scale operation of technologies used to treat …
Treatment efficiency of these units was calculated by the ITRC Mining Waste Team Reverse Osmosis Group. Based upon these calculations, the two RO systems had efficiencies of 97% and 91%, respectively, for the removal of TDS from the feed water.
A full-scale bioreactor is installed where contaminated water is pumped from the in situ copper operation to an alcohol-enhanced bioreactor for pH neutralization and metals removal. Operation and maintenance costs of this bioreactor system are elevated due to required well monitoring, sampling, and anticipated changes in water chemistry. The …
This case study presents the results of the implementation of constructed treatment wetlands technology in Keystone and Rising Star mines. Keystone Mine is in section 14, T33N, R6W, MDB&M (CRWQCB CVR 2002), located approximately 4.5 miles west of Shasta Dam and 9 miles northwest of Shasta Lake City (latitude 40.72187N, longitude …
Under a Voluntary Cleanup program, the Pennsylvania Department of Environmental Protection (PA DEP) operates chemical precipitation technology using limestone/lime treatment system at the Toby Creek site. Primary contaminants include acidity, aluminum, iron, and manganese. Site cleanup goals are based on the mitigation of ecological risk.
In 1986, LTV conducted a preliminary feasibility study to determine the best method to mitigate the drainage problem at the Dunka Mine, examining both active treatment systems (lime treatment, reverse osmosis) and passive alternatives (limiting infiltration into stockpiles, wetland treatment) (Barr Engineering 1986).
The site name and exact location have not been disclosed at this time; therefore, the case will be herein referred to as "the Site." The Site was a gold and silver mine located in Idaho with acid mine drainage emanating from waste rock piles. Affected media include soil, sediment, surface water (e.g., stream, rivers, runoff, and drainage), surface pool water …
These treatment technologies are expected to be permanent remedial solutions. Site cleanup goals are based on the mitigation of human health risk and mitigation of ecological risk.
The ITRC Mining Waste Team is collecting case studies of tests and full-scale operation of technologies used to treat contaminants of concern in mining-related material. We hope to obtain, at a minimum, a description of the technology, a brief background of the site, and a way to contact someone familiar with the technology to obtain follow-up information. …
Each technology is described, along with a summary of the applicability, advantages, limitations, performance, stakeholder and regulatory considerations, and lessons learned. Each technology overview links to case studies where …
Ghana, a country with a relatively shorter history of large-scale mining, also has lessons on managing waste materials to share. The case studies below review how legal …
