Academic literature on the topic 'Tailings disposal facility'

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Journal articles on the topic "Tailings disposal facility"

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Oldecop, Luciano, and Germán Rodari. "Unsaturated mine tailings disposal." Soils and Rocks 44, no. 3 (August 13, 2021): 1–12. http://dx.doi.org/10.28927/sr.2021.067421.

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Filtered tailings is the disposal technology that is most likely to yield an unsaturated state of the tailings. Such state has important benefits. A dam to contain the mine wastes is no longer needed, the risk of polluting seepage is minimized, and liquefaction of tailings is prevented. Filtering also allows most of the water mixed with the tailings to be recovered and reused in the process. The resulting material can be handled with traditional soil moving equipment to form a stack, for instance. While the idea is simple, the multiple phenomena involved in the tailings unsaturated disposal make up a complex process. The present work is based on a case study, the Casposo Mine filtered tailings disposal facility, located in the central Andes of Argentina. Throughout ten years of operation, a series of field and laboratory studies have been carried out to characterize the phenomena that intervene in the disposal of filtered tailings. Two stages were studied in detail: air drying upon tailings discharge and tailings compression under the weight of the subsequent lifts of the stack. Flocculant agents were found to have an outstanding influence in the tailings behaviour. Because of the multiple influencing factors, the process outcome (namely, the tailings water content and their void ratio) is highly variable. To deal with such variability, projects must include enough redundancy. In this regard, the case study’s incorporation of waste rock layers interspersed between tailings layers was a successful experience.
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West, Anthony CF, Paul J. Van Geel, Kenneth G. Raven, Thanh Son Nguyen, Mahrez Ben Belfadhel, and Peter Flavelle. "Groundwater flow and solute transport in a laboratory-scale analogue of a decommissioned in-pit tailings management facility." Canadian Geotechnical Journal 40, no. 2 (April 1, 2003): 326–41. http://dx.doi.org/10.1139/t02-108.

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A laboratory-scale analogue of an in-pit tailings management facility (TMF) was constructed using mortar sand, fluorescent-dye-containing ground silica, and filter gravel to represent fractured host rock, tailings, and a pervious surround, respectively. In a series of experiments, the performance of the analogue was observed through collection of hydraulic head, groundwater discharge, and solute concentration data. These data were found to be sufficient to validate numerical simulations of the experiments carried out using FRAC3DVS. The validation exercise indicated that adequate discretization of the tailings' periphery was critical to accurate simulation of early time solute release from the ground silica, while accurate simulation of groundwater flow and hydrodynamic dispersion adjacent to the ground silica was critical to accurate simulation of the down-gradient solute plumes. The validated model was used to predict how the analogue would have performed over its entire "contaminating lifespan." The results of the experiments and subsequent numerical modelling were used to support the argument that, assuming no dissolution of tailings solids, solute mass flux out of a decommissioned in-pit TMF would decrease asymptotically with time from a rate controlled by diffusion at the tailings' periphery towards a steady rate controlled by advection through their core.Key words: tailings, groundwater contamination, in-pit disposal, physical model, numerical model, advection-dispersion.
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JAMIOLKOWSKI, M. "Soil mechanics and the observational method: challenges at the Zelazny Most copper tailings disposal facility." Géotechnique 64, no. 8 (June 2014): 590–618. http://dx.doi.org/10.1680/geot.14.rl.002.

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Sharma, Devraj, and Pfeter Marais. "A comprehensive mathematical model to predict hydrodynamics and mass transport at a complex mine tailings disposal facility." International Journal of Mine Water 5, no. 1 (March 1986): 1–19. http://dx.doi.org/10.1007/bf02533599.

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Bhuiyan, Imteaz, Shahid Azam, and Patrick Landine. "Consolidation Behavior of a Uranium Tailings Storage Facility in Saskatchewan." Journal of Hazardous, Toxic, and Radioactive Waste 19, no. 4 (October 2015): 04015005. http://dx.doi.org/10.1061/(asce)hz.2153-5515.0000281.

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Sukiasyan, A. R., and A. A. Kirakosyan. "HEAVY METAL POLLUTION OF RIVER WATERS AND COASTAL SOILS ADJACENT TO THE TAILING STORAGE FACILITY TERRITORY." Water and Ecology 25, no. 3 (2020): 79–84. http://dx.doi.org/10.23968/2305-3488.2020.25.3.79-84.

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Introduction. The operation of the Teghut copper-molybdenum enterprise resulted in the man-made load on the environments in terms of concentrations of some heavy metals (autumn 2016), the migration of which continued even after the plant shutdown (autumn 2018). Methods. The authors studied changes in the concentrations of Mo, Zn, and Cu in samples of Shnogh River water and coastal soils near the tailing storage facility territory. Results. During enterprise operation, in water sampling points 1 and 2, a decrease in the concentrations of these heavy metals after the plant shutdown was noted. According to the analysis of coastal soil samples, in points 1 and 2, after the plant shutdown, the Zn concentration decreased by 75% and the Cu concentration decreased by 84% compared with the analysis of samples during enterprise operation. In samples of coastal soils from sampling points 3 and 4, a concentration reverse was observed. Conclusion. The calculation of the geo-accumulation coefficient for the studied heavy metals in soil sampling points 1 and 2 compared to sampling points 3 and 4 indicates a decrease in the man-made load on the environment, caused by plant operation.
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"Design of a tailings disposal facility for the Samatosum Mine, British Columbia." International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 29, no. 3 (May 1992): A187. http://dx.doi.org/10.1016/0148-9062(92)94041-o.

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Yasinskaya, A. V. "Environmental impacts of disposal methods used for solid waste and its processing products." Obogashchenie Rud, February 26, 2021, 37–43. http://dx.doi.org/10.17580/or.2021.01.07.

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Municipal solid waste (MSW) landfills and tailings storage facilities of mining enterprises often operate in similar hydrogeological conditions and have similar requirements for their design, operation, and closure. Therefore, the examination data set obtained for MSW landfills may also be used when assessing the environmental impact of waste disposal facilities in the mining industry. The body of data collected for such landfills contains certain information that is rarely studied for tailings storage facilities of mining and processing enterprises. These include the influence of hydrological conditions on the processes occurring within the landfill, regularities of sediment infiltration and leaching, the composition of the filtrate released, migration of pollutants outside the waste disposal facility, and formation and monitoring of gas emissions. Thermal recycling and composting were selected as the MSW handling technologies studies. The data on the joint disposal of MSW and related incineration ash, MSW-based compost and the municipal solid waste itself are presented. Studies on the consequences of joint waste disposal for the environmental impact of landfills are analyzed. The above analysis established that extraction of recyclable components from MSW for reuse or energy use would reduce the volume of MSW entering the disposal sites; biological or thermal treatment of MSW for the purpose of neutralization and volume reduction would reduce both the volume of MSW entering the disposal sites and the related biological hazard; and combined disposal of MSW with products of biological or thermal decontamination of MSW would lower the biological hazard of disposal. The study was carried out under the grant issued by the Russian Science Foundation (project No. 19-79-10114).
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Dissertations / Theses on the topic "Tailings disposal facility"

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Van, den Berg Mader J. "Western limb tailings reclamation project." Diss., Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-07272005-100249.

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Van, Coller Charné. "Utilizing earthworm and microbial assays to assess the environmental effects of different mining activities / Charné van Coller." Thesis, North-West University, 2011. http://hdl.handle.net/10394/9712.

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Mining has negative impacts on the environment, and is one of the main contributors to environmental pollution. This holds a potential hazard for ecosystems surrounding mining areas and also for public health in the surrounding communities. There is therefore a need for ecotoxicological research in order to assess these possible risks and find ways to minimize the harmful effects. One way in which to assess soil vitality are soil enzymes which are produced by plants and microorganisms and will therefore be more abundant in healthy soils. Earthworms have been proven to be useful bioindicators for metal contamination of soil, as they are able to accumulate metals from their environment into their body tissue. The aim of this study was to use earthworm bioassays, neutral red retention time analysis (NRRt), enzymatic analysis and RAPD-PCR to determine the effect of mining activity on the environment. This was done by assessing the ecotoxicity of tailings collected from three different mines, viz. gold-, opencast chrome- and coal mines. The metals chosen for analyses included four (Cr, Co, Ni and Pb) of the seven (Cd, Cr, Ni, Pb, Zn, Cu, Co) environmentally important trace elements as described for South African soils. Arsenic was also chosen since it is associated with gold mine tailings. Tailings and soil were collected from three sites at each of the mines which included unrehabilitated (TDF-U) and rehabilitated (TDF-R) substrates from tailings disposal facilities (TDFs) and reference soils (RS) in close proximity to TDFs. The physical and chemical properties of these different substrates were determined in terms of pH, particle size as well as metal contents. In addition to this, they were analysed for microbial community function by means of enzymatic activity, which has been proven to be useful in evaluating contamination of soil. The enzymes analysed in this study included dehydrogenase, ßglucosidase, acid phosphatase, alkaline phosphatase and urease. Earthworms (Eisenia andrei) were exposed to different material for 28 days during which their biomass, reproduction, mortality and lysosomal membrane stability were monitored weekly. Hereafter, they were removed from the material while the cocoons were left behind for a further 56 days. The hatched and unhatched cocoons as well as the juvenile worms were then counted to determine reproduction patterns in the materials. Metal concentrations in the substrates and earthworm body tissues were compared to selected benchmarks. Results indicated that when comparing the different materials from each mine, enzymatic activity proved to be a very sensitive parameter. Enzymatic activity showed significant differences (p < 0.05) between RS, TDF-R and TDF-U materials. Biomass was not a sensitive parameter (p > 0.05) for the worms exposed to the gold and chrome mine tailings, but it was a sensitive parameter (p < 0.05) for the coal mine exposed earthworms, showing early differences between the worms from the different sites (RS, TDF-R and TDF-U). The NRR-t assay was very sensitive (p < 0.05), indicating clear differences between the worms from each investigated site. In terms of reproduction, the production of cocoons showed clear differences (p < 0.05) between the different sites and could therefore be considered a sensitive parameter. Hatching success however, was not a sensitive parameter. The reason being that there were so little cocoons produced that it is not possible to determine the correct percentage of juvenile worms hatching from, for example, only one or two cocoons. Mortality was also not a sensitive endpoint as it was only observed in the coal mine material. RAPD - PCR results indicated genetic differences between earthworms exposed to the control- and the tailings materials, indicating either DNA alterations due to possible genotoxic effects, or genetic variation between individuals of the same species. Since mine waste materials often contain complex mixtures of metals that might be toxic on their own or in combination with other factors, it is difficult to attribute any observed genotoxic effect to any of the specific metals.
Thesis (MSc (Environmental Sciences))--North-West University, Potchefstroom Campus, 2012.
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Koch, Jaco. "Migration and gamma ray assessment of uranium on a gold tailings disposal facility / Jaco Koch." Thesis, 2014. http://hdl.handle.net/10394/10858.

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This project aims to quantify natural gamma radiation in gold tailings disposal facilities (TDFs) relative to uranium concentration data in order to use natural gamma detection methods as alternative methods for uranium resource estimation modelling in gold tailings. Uranium migration within the New Machavie TDF was also investigated as migration affects both the grade of the TDF as a uranium resource and poses a threat to the environment. In order to determine the most appropriate radiometric testing procedure, various methods were employed for natural gamma detection, including surface natural gamma spectrometry, borehole natural gamma spectrometry and scintillometry, as well as incremental sampling. These measurements were then statistically compared to ICP-MS analyses to find the best method, and then modelled to apply volumetric resource estimation procedures. The oxidation reduction potential was also tested as uranium geochemistry is dependent on oxidation for mobilisation. Furthermore, leaching tests were employed to relate specific anions as a mode of transportation in solution. Results indicated that down-hole natural gamma spectrometry performed the best and that 2376.87 kg of uranium is present in the TDF. Migration modelling indicated that uranium is mobilised away from the oxidized top area of the TDF and that accumulation occurs in the saturated zone of the TDF under a reducing environment. Sulphate anions as the result of pyrite oxidation are primarily responsible for the mobilisation as radionuclides in New Machavie. The results of this project can be applied to the resource estimation of all uranium bearing tailings facilities prior to re-mining as a means to decrease exploration costs and to accurately model the distribution of uranium.
MSc (Environmental Sciences), North-West University, Potchefstroom Campus, 2014
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Daniell, Angelique. "Geochemical monitoring of soil pollution from the MWS-5 gold tailings facility on the Farm Stilfontein / Angelique Daniell." Thesis, 2015. http://hdl.handle.net/10394/14914.

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The rehabilitation and restoration of degraded landscapes adjacent to gold tailings disposal facilities (TDFs) that have suffered loss of efficiency through anthropogenic forces has become a primary concern to environmental sciences and management in recent decades. Due to the lack of environmental legislation and enforcement thereof, minimal surface rehabilitation took place on the Mine Waste Solutions (MWS) No. 5 TDF prior to 1992, a commonplace occurrence in South Africa at the time. In 2000, MWS intervened and committed to the rehabilitation of the entire site with profits generated by the reprocessing (extraction of residual gold and uranium) of certain TDFs. However, the adjacent grazing land north of the MWS No. 5 TDF had already been subjected to pollution from the TDF which resulted in a pollution plume on the land. Although it has been inactive since April 2011, the pollution plume can be seen from the north-eastern corner of MWS No. 5 TDF, with a north-eastern/south-western direction on the farm Stilfontein. During dry periods, significant amounts of sulphate salts accumulate on the soil surface on the farm Stilfontein over a distance of at least 3.5 km from the TDF. The presence of sulphate salts in association with gold TDFs is highly common but not particularly common, in the chert-poor dolomites of the Oaktree Formation itself, in which the presence of sulphate salts is a rarity. The primary concern of this study was to determine both the quantitative and extent of the pollution observed on the farm Stilfontein over a period of 30 months via monthly monitoring of the different soil geochemical assessments across twelve fixed points, and quarterly interval assessments of three transect lines. In addition, the study was also concerned with the identification of potential linear structure anomalies associated with the pollution plume and weathered zones (fractures, joints and cavities) in the Oaktree Formation dolomites. These zones may be associated with, or may result in, the pollution extending over the area despite a topography as well as geological dip and strike that is adverse. These features and weathered zones create pathways for groundwater to flow and it was anticipated that, if present, these anomalies and weathered zones may be primary contributing factors to the pollution plume forming in a north-easterly direction and extending over the farm Stilfontein. The MWS No. 5 TDF has a hydraulic pressure head of approximately 40 m; the elevations of the north-eastern corner of the TDF and fixed point (FP) 8 (the farthest FP from the TDF) are 1368 m and 1360 m respectively, falling in close range of each other. It is anticipated that as the TDF material dries, the phreatic water level inside the TDF will lower; causing the pressure exerted by the hydraulic head of the TDF to lower over time, which will eventually end the pollution process on the soil. This study discusses the results of a holistic approach towards the evaluation of soil, vegetation and water pollution by utilizing soil quality parameters and indicators, geohydrology, geophysical surveys, Landscape Function Analysis (LFA) and other means of vegetation assessments. Salt accumulation on the soil surface was common in specific areas from 2010 – 2012. X ray diffraction (XRD) analyses confirmed that the salts originated from the No. 5 TDF due to the similarity in mineralogy. The pH values from the start of the 30-month monitoring period remained neutral to slightly alkaline due to the neutralising effect of the dolomitic bedrock. The electrical conductivity (EC) values of the soil decreased significantly from 2010 to 2014; during dry seasons since 2012, no sulphate salts accumulated on the soil surface. Joints, fractures and cavities were found within the bedrock dolomites which created pathways for the polluted TDF water and groundwater to flow towards the study area. It was also established that there were no adverse effects on the natural vegetation, other than encroachment by Seriphium plumosum which affected the grazing quality (overgrazed sites) of the area. It was therefore concluded that after the TDF became dormant in April 2011, the pollution plume in this area is decreasing in magnitude and severity due the lowering of the phreatic water level inside the TDF to significantly lower levels. Consequently, the decrease of the hydraulic pressure head of the TDF as well as rainwater infiltration and high percolation due to the presence of fractures, joints and cavities in the dolomites resulted in the leaching of the sulphate salts to a significant extent. It was also concluded that while there were no apparent adverse effects of the pollution on the functionality of the land, additional monitoring and maintenance would be required for at least the next five years in order to ensure the continuance of current conditions.
MSc (Environmental Sciences), North-West University, Potchefstroom Campus, 2015
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Books on the topic "Tailings disposal facility"

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United States. Bureau of Land Management. Albuquerque District. Molycorp Guadalupe Mountain tailings disposal facility: Final environmental impact statement. [Albuquerque, NM: U.S. Dept. of the Interior, Bureau of Land Management, Albuquerque District Office, 1989.

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United States. Bureau of Land Management. Taos Resource Area. Proposed molybdenum tailings disposal facility for Molycorp, Inc: Final environmental assessment. New Mexico]: U.S. Dept. of the Interior, Bureau of Land Management, Albuquerque District, Taos Resource Area, 1985.

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Service, United States Forest. Greens Creek Mine tailings disposal facility expansion: Final environmental impact statement : Tongass National Forest, Admiralty Island National Monument, Juneau, Alaska. [Juneau, Alaska?]: United States Department of Agriculture, Forest Service, 2013.

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Proposed molybdenum tailings disposal facility for Molycorp, Inc.: Final environmental assessment. [Taos, N.M.?]: US Dept. of the Interior, Bureau of Land Management, Albuquerque District, Taos Resource Area, 1985.

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United States. Bureau of Land Management. Taos Resource Area, ed. Proposed molybdenum tailings disposal facility for Molycorp, Inc.: Final environmental assessment. [Taos, N.M.?]: US Dept. of the Interior, Bureau of Land Management, Albuquerque District, Taos Resource Area, 1985.

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United States. Bureau of Land Management. Taos Resource Area., ed. Proposed molybdenum tailings disposal facility for Molycorp, Inc.: Final environmental assessment. [Taos, N.M.?]: US Dept. of the Interior, Bureau of Land Management, Albuquerque District, Taos Resource Area, 1985.

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Book chapters on the topic "Tailings disposal facility"

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Forbes, P. J., and J. J. Burden. "Interim tailings disposal facility at Ok Tedi, Papua New Guinea." In Mining Latin America / Minería Latinoamericana, 121–29. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-017-2286-5_12.

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Jakubowski, Ryan T., Douglas S. Oliver, and John J. Mahoney. "Infiltration and Contaminant-Transport Modeling for a Uranium Mill Tailings-Disposal Facility." In Uranium, Mining and Hydrogeology, 259–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_34.

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Cherry, J., G. Eykholt, J. Manchester, and S. Donohue. "Heat and mass balance modeling of a subaqueous tailings disposal facility." In Tailings and Mine Waste '08, 35–48. CRC Press, 2008. http://dx.doi.org/10.1201/9780203882306.ch4.

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Cherry, J., G. Eykholt, J. Manchester, and S. Donohue. "Water chemistry and metal cycling in a subaqueous tailings disposal facility." In Tailings and Mine Waste '08, 49–61. CRC Press, 2008. http://dx.doi.org/10.1201/9780203882306.ch5.

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Conference papers on the topic "Tailings disposal facility"

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Kotarska, Izabela. "INDUSTRIAL ACTIVITY ON THE PRECIOUS AREA OF NATURAL SUCCESSION OF A CLOSED FLOTATION TAILINGS DISPOSAL FACILITY." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/51/s20.121.

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Di Pace, Luigi, and Antonio Natalizio. "A Radio Toxicity Index for Fusion Waste." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4889.

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With current designs of future fusion power plants, it is evident that a significant quantity of operational radioactive waste will be produced over the lifetime of the plant. This waste will be mostly due to the replacement of in-vessel components (IVCs) on a regular basis, currently assumed to be every five years. This potentially large quantity of waste raises issues about its ultimate disposal, particularly the nature of the disposal facility required to accommodate it. The term invessel component includes the divertor and the breeding blanket, the “fuel” in a fusion reactor. In this perspective only, the waste resulting from IVC replacement is analogous to the fuel waste arising from fission power plants, and this comparison, whether justified, or not, could prejudice the fusion waste disposal solution. As fusion in-vessel component waste is significantly and fundamentally different from fission reactor fuel waste, it is essential that the fusion disposal solution be based solely on its needs. To highlight this fundamental difference between the fusion and fission operational waste, a radio toxicity index has been defined, which may prove to be of value in defining appropriate requirements for the disposal of fusion operational waste. Uranium has been the basis of the fission power industry and it is found in nature in concentrations varying, typically, from 0.1 to 1%, and in some cases ore bodies with concentrations up to 25% have been found. Because uranium is a radioactive element, and is quite common in the earth’s crust, it offers an opportunity to be used as a benchmark for comparing potential fusion and fission power reactor radioactive waste. As U-238 is the most abundant isotope of uranium found in nature (>99%), it is proposed that the radio toxicity of U-238 be used to assess the relative radio toxicity of relevant fusion and fission waste. The ratio of the radio toxicity of a given material to that of U-238 is referred to as the radio toxicity index. Therefore, a waste material with a radio toxicity index equal to one would be considered acceptable for disposal in the earth’s crust, in the same manner that uranium tailings are disposed of in the mining industry. The results of studies performed for typical fusion breeder material indicate that there is no compelling economic reason for reprocessing. Furthermore, the radio toxicity index for such materials indicates that there are no technical reasons — i.e., there does not appear to be a need for deep, geological disposal of spent fusion breeder material. On the contrary, the application of the radio toxicity index to spent fission fuel has demonstrated, from a waste disposal perspective, that there are compelling reasons for reprocessing to separate low radio toxicity fission products from the high radio toxicity actinides, which can be reused. This conclusion augurs well for a future fusion power industry and goes a significant distance in demonstrating the potential environmental advantages of fusion power.
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