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A mine waste deposit known as a tailings dam recently failed in the town of Jagersfontein, South Africa. The failure occurred amidst global concern about the …
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In South Africa, the principle management guidance document for tailings storage facilities is SANS 10286, the origin of which dates back to 1998. This standard contains fundamental objectives, the principles and …
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The chemical composition of tailings depends on the mineralogy of the ore body, the nature of the processing fluids used to extract the economic metals, the efficiency of the extraction process and the degree of weathering during storage in the dammed impoundment. ... (South Africa) dam failure of 1994 (Davies et al., 2000, Fourie et al., …
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The intent of this paper is to provide overview context to allow broader understanding of conventional tailings dam failure mechanisms. The research leverages global knowledge, experience, and data collection and interpretation for the safe and controlled management of the geotechnical stability of a tailings storage facility. The …
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Therefore, the filtered tailings used herein are termed 80/20 and were generated with moisture content values ranging from 12 to 18%. The grain size distribution of the 80/20 tailings used is highlighted in Fig. 1.Table 1 summarizes the main physical characteristics of the iron ore tailings. According to the Unified Soil Classification …
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DRDGold has embarked on the first phase of what will be one of the largest tailings recovery operations in South Africa. According to CEO, Niel Pretorius, the tailings retreatment facility will bring …
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historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to …
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Tailings flows triggered by weather hazards have steadily increased in frequency over time, which is consistent with the findings of Rico et al. (2008a), Azam and Li (2010) and Lyu et al. (2019) in relation to tailings dam failures in general. The meteorological effect on tailings dam stability may be manifested in several ways.
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Bibliography: Mine and Industrial Tailings Dams and Dumps. (1989) 45: Manual on Tailings Dams and Dumps. (1982) 74: Tailings Dam Safety – Guidelines. (1989) 97: Tailings Dams – Design of Drainage. (1994) 98: Tailings Dams and Seismicity – Review and recommendations. (1995) 101: Tailings Dams – Transport, Placement and …
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Tailings dam failures have been documented since 1915 (ICOLD, 2001). The International Committee on Large Dams (ICOLD, 2001) provides a catalogue of 221 tailings dam accidents, and includes the information provided in the databases of the US Committee on Large Dams (USCOLD, 1994) and the United Nations Environment …
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Introduction. Tailings are the fine-grained mine waste or residue material that remains after the constituents of value have been extracted from the ore. Tailings are typically …
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Samarco dam disaster (Brazil, 2015): On November 5, 2015, the Fundão tailings dam at the Samarco iron ore mine in Brazil failed, releasing 55 million cubic meters of mining waste into the Doce River. The disaster resulted in the deaths of 19 people and widespread environmental damage, including the destruction of ecosystems and the ...
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1. Raw ore: rock manganese ore 2. Capacity: 10TPH 3. Feed size: <200mm 4. Output: 0-2mm 5. Location: South Africa
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Gold Tailings Reclamation in South Africa Introduction This paper is partially adapted from B J Cook ( 1985). Under the guidance of the late Mr W H Cook establishment …
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dams in South Africa is widespread and of extraordinary spatial dimension. Introduclien Due to the nature of the ore from which the gold and uranium has been ex tracted in the South African gold fields, the tailings dams ("slimes dams" in the SA context) contain a substantial amount of U and other heavy metals. U
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Tailings containment dam failures cause severe environmental, social, and economic impacts. Analyzing past occurrences allows society and decision-makers to improve storage facility safety. This study presents an overview of tailings dam failures, exploring historical aspects and environmental consequences. Two methodological …
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investigate the composition and state of South African gold tailings on the far West Rand gold reefs. Samples for this project were collected from the pond areas of two …
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Proceedings of the 6th International Mining and Industrial Waste Management Conference, 29, 30 & 31 October 2018 – Legend Golf and Safari Resort, Limpopo A Review of Freeboard Criteria for Tailings Dams Y.Narainsamy1 1Jones & Wagener, Johannesburg, Gauteng, [email protected] Abstract Freeboard is one of the most important …
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tilled into technica l and engineering advances in South African slimes dams, tailings impound- ments, or mine waste storage facilities, as you may choose to term them. We have written of
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to tailings dams performance. TAILINGS FACTSHEET Inspection of fibre optic flow meter installation at Mogalakwena PGMs mine, South Africa. 4 Shock-break trials taking place at the Baobab PGMs concentrator, South Africa. FUTURESMART MINING™ – changing the future of tailings
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Due to the large amount of tailings discharged from mining, tailing dams were built to deposit this kind of solid waste which is a common treatment (Kossoff et al. 2014).The accumulation of tailings in the dams not only occupies a large area of land including farmland and woodland (Yin et al. 2011) but also destroys the ecological …
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Bafokeng tailings dam, South Africa: 12 people died and released more than 30 million tons of tailings: 13: 1976: Zletovo mine No. 4 tailings dam, Yugoslav: Released 300,000 m 3 of tailings, the ecological environment was seriously polluted: 14: 1978: Corsyn Consolidated Mines gold-tailings dam, Zimbabwe: 1 people died and …
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The failure of the Merriespruit tailings dam in South Africa in 1994 followed a rainfall event that led to overtopping and erosion of the dam, due to its having inadequate freeboard. ... In response to the ever-increasing production of tailings because of decreasing ore grades and increasing demand for minerals, attention is now being paid …
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The Witwatersrand gold–uranium ore contains an average of 3 wt% pyrite (Hall, 1986).Mineralogical data of 16 tailings samples throughout the Witwatersrand collected from surface to a depth of 80 cm (Rösner et al., 2001) indicate that the major constituents, at least at surface, are quartz, mica (unspecified) and chlorite with jarosite …
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have been extracted from the ore. Tailings are typically transported hydraulically and discharged as slurries for permanent, or long-term, containment in tailings dams that are raised concurrently with ... perimeter wall contributed to the failure of the Merriespruit tailings dam in South Africa in 1994 (Blight, 2010). Additionally, although ...
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BACKGROUND: On the morning of September 11, a tailings dam collapsed at the closed Jagersfontein diamond mine in Free State, South Africa. Local news reports the flood of mine waste killed at least three people, and injured 40.The failure swept away houses, damaging at least 20.The tailings flowed over 8 km and left a path …
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Tailings are currently classified by South African environmental legislation as potentially hazardous waste. When assessed against the legislated Waste Acceptance Criteria, …
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Tailings dams are generally not designed with the same conservatism as conventional water-retention ... 2.3.2 Ore-dressing 2-6 2.3.3 Metallurgical extraction 2-10 2.3.4 Refining 2-12 ... 5.1 Tailings disposal in South Africa . …
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On 25 January 2019, the structure damming a pond filled with iron ore mining wastes (tailings) burst at Brumadinho, Brazil (1), causing a massive mudslide that killed at least 232 people. ... The postfailure investigation of the Merriespruit tailings dam in South Africa revealed that the water level in the dam was higher than prescribed .
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As the level of the materials rises, the crest of the dam is raised "upstream", using the support of the previous dam raise and the tailings beach area. Downstream The downstream method begins in most cases with a …
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