investigation into the slimes dams

investigation into the slimes dams

Investigation into the slimes dams University of Pretoria

2009-10-7 Investigation into the slimes dams, mine dumps and landfills (residue deposits) as environmental constraints to low-cost housing projects in Gauteng, South Africa T.E. Manungufala*, M. Sabiti-Kalule*, I. Aucamp* *Tswelopele Environmental (Pty) Ltd, Randburg Email: [email protected]

Investigation into the slimes dams, mine dumps and

Investigation into the slimes dams, mine dumps and landfills (residue deposits) as environmental constraints to low-cost housing projects in Gauteng, South Africa Manungufala, T. E. ; Sabiti-Kalule, M. ; Aucamp, Ilse C. ; IAHS World Congress on Housing (33rd : 2005 : Pretoria, South Africa)

An investigation into the stability of slimes dams with

An investigation into the stability of slimes dams with particular reference to the nature of the material of their construction and the nature of their foundations By

Theoretical andengineering aspectsof slimes

2009-8-26 uresoccur.) Slimes-dam construction developed inthiswayforfiftyyears, anditwasonlyin1953that amajor investigation waslaunched tostudy thewholeproblem ofthestability of slimes dams from an engineering point of view. The results of this investigation were published inde-tail in 19591and were summarized inamore practical form inatech-nicalpaper2.

Theoretical and engineering aspects of slimes-dam

ures occur.) Slimes-dam construction developed in this way for fifty years, and it was only in 1953 that a major investigation was launched to study the whole problem of the stability of slimes dams from an engineering point of view. The results of this investigation were published in de-tail in 19591 and were summarized in a more practical

(PDF) Water reduction investigations on Debswana's

Premier Mine's current slimes dam is nearing the end of its operational life. This is aggravated by a large volume of poor quality water in the dam which is not being recycled back into the process.

equipments used for mining slimes dams

Investigation into the slimes dams University of Pretoria. Mining is a major activity in Gauteng and as a result the province has a large number of slime dams, mine dumps, and landfills in areas earmarked for low-cost housing projects. The paper identifies and .

Retreatment of Residues and Waste Rock SAIMM

2011-5-29 12.2.1 Sand dumps and slimes dams Residues contained in sand dumps and in slimes dams consist essentially of three different products, namely separate sand and slime and slime from the all-sliming process. In the early days gold was recovered from stamp-milled material by gravi ty concentration only.

Seepage Control for Tailings Dams

2015-3-2 dam is raised, it can be constructed over a carefully pre pared foundation base rather than over previously deposited slimes, as is the case for the upstream method. Figure 2 ( 9} presents a comparison between a conventional water storage dam and a tailings dam built using the downstream method of construction.

Surface Water Quality at Boete Slimes Dam, AngloGold

This caused a hydrological imbalance downstream and introduced Fe, Zn, Pb, and As into nearby water bodies [1].Close to BSD, the Pompo stream flows east of Slimes Dam 5 and 6 (Fig 1). The Kwabrafo stream flows west of the dam at a distance of 1.84 km from Diawuoso village.

Investigation into the slimes dams, mine dumps and

Investigation into the slimes dams, mine dumps and landfills (residue deposits) as environmental constraints to low-cost housing projects in Gauteng, South Africa . By T. E. Manungufala, M. Sabiti-Kalule and Ilse C. Aucamp. Abstract.

Theoretical and engineering aspects of slimes-dam

ures occur.) Slimes-dam construction developed in this way for fifty years, and it was only in 1953 that a major investigation was launched to study the whole problem of the stability of slimes dams from an engineering point of view. The results of this investigation were published in de-tail in 19591 and were summarized in a more practical

GDS CASE STUDY: FUNDÃO MINE TAILINGS DAM FAILURE

2020-9-7 left Dam abutment being shifted to an upstream alignment, closer to (and, in fact, above) areas in which slimes had been deposited. It is also noted that three low-magnitude earthquakes (M W 1.8 to 2.6) occurred near the Dam approximately 90 minutes prior to Dam failure taking place. PANEL INVESTIGATION INTO THE DAM FAILURE

Mine Dewatering Studies at Jwaneng Open Pit Diamond

2008-10-29 showing the slimes dams as a source of recharge with seepage being conveyed via permeable structures to the open pit. Source: Debswana, 2007b a) b) Conclusion The possible influence of surface sources of water have been taken into account in developing an alternative conceptual model for open pit inflows into Jwaneng mine.

Surface Water Quality at Boete Slimes Dam, AngloGold

This caused a hydrological imbalance downstream and introduced Fe, Zn, Pb, and As into nearby water bodies [1].Close to BSD, the Pompo stream flows east of Slimes Dam 5 and 6 (Fig 1). The Kwabrafo stream flows west of the dam at a distance of 1.84 km from Diawuoso village.

Seepage Control for Tailings Dams

2015-3-2 dam is raised, it can be constructed over a carefully pre pared foundation base rather than over previously deposited slimes, as is the case for the upstream method. Figure 2 ( 9} presents a comparison between a conventional water storage dam and a tailings dam built using the downstream method of construction.

EROSION OF THE SLOPES OF GOL.D-RESIDUE DAMS ON

2016-6-15 A major problem on qold residue dams is the Drevention of material being washed away or carried by wind into the atmosphere. By investigating the process of erosion on the jams it should be possible to predict rates of erosion and hence formulate ways of controlling the loss. The Chamber of Mines has developed a device for

An investigation of copper and selenium recovery from

2013-11-14 The proposed process was composed of two hydrometallurgical steps; decopperization in H 2 SO 4 medium and dissolution of selenium into NaOH solution. The effects of oxygen flow rate and solution temperature on the decopperization of anode slimes were examined in H 2 SO 4 medium and copper recovery was achieved with an efficiency of 94%.

Paper: An Investigation into the Depth and Rate of

Abstract: The generation of acid rock drainage (ARD) from tailings dams of the Witwatersrand gold fields in South Africa is arguably one of the main strategic environmental issues facing the gold mining industry and the South African Government. Fine-grained, sulphidic, tailings impoundments generate ARD through the diffusive ingress of oxygen into

The Samarco disaster was waiting to happen

2016-8-30 The most disconcerting aspect of the findings of the investigation into the Samarco tailings dam disaster is that, almost from the time it was constructed, the dam was a calamity in waiting.

The genesis of a disaster CIM

2016-11-4 The proximity of the slimes further served to inhibit drainage in the sands. The dam’s growing height bore down on the slimes-rich zone. “As the softer slimes were loaded, they compressed,” wrote the investigators. “At the same time, they also

Australian Centre for Geomechanics Conference Paper: The

Abstract: In the late 1990s the slimes effluent dams at the AECI industrial complex were decommissioned, and there followed an invasion of plants into the still-saturated but somewhat toxic material that had been deposited in the dams over a 40 year period

PRELIMINARY REPORT OMAI TAILINGS DAM FAILURE

2012-9-14 As shown on Figure 1, the dam crest was at el. 534m and the water level at el. 529.6m at the time of failure. The current water level is about el. 517m, with the slimes surface about 1- 2m below the water level at approximately el. 515m. Thus, virtually all of the impounded water was lost in the failure. In November, 1994 the slimes surface was

Recovery of Iron Values from Iron Ore Slimes of Donimalai

Approximately 10–20 % of the process plant input is discarded as slimes into slime ponds/tailing dams. Tailing dams are now considered as a threat due to hazardous nature and acute shortage of

2009 The internal investigation of conduits through an

The site of the Wyaralong Dam, west of Beaudesert, Queensland, has been investigated in progressive stages since 1991. The first stage of the investigation was a siting study and the second in 2006 was designed to gather sufficient geotechnical information to develop a preliminary design and provide input into the environmental approval process.

An investigation of copper and selenium recovery from

2013-11-14 The proposed process was composed of two hydrometallurgical steps; decopperization in H 2 SO 4 medium and dissolution of selenium into NaOH solution. The effects of oxygen flow rate and solution temperature on the decopperization of anode slimes were examined in H 2 SO 4 medium and copper recovery was achieved with an efficiency of 94%.

HYDRAULIC TAILINGS

zone of slimes (more than 50 percent passing the No. 200 sieve) extending from the more distant regions or the above-water beach to beneath the decant pond, as shown in an idealized manner in Figure 2 2-2. The degree of particle-size segregation on the beach, and therefore the extent to which the sand tailings and slimes are differentiated, de-

Guidelines for Design of Dams

2020-9-21 guidelines for the proper design of a dam. In order for a dam to safely fulfill its intended function, the dam must also be constructed, operated and maintained properly. Supervision of construction or reconstruction of the dam by a licensed professional engineer is required to insure that the dam will be built according to the approved plans.

Tailings Dam an overview ScienceDirect Topics

2015-11-5 The ore reserves have been estimated at 34.96 million tons at 0.324% Cu, and mining/milling of 2.50 million tons (2015). The mine environmental disaster started on August 4, 2014, with a partial breach of tailings pond dam, releasing 10 million cubic meters of water and 4.5 million cubic meters of slurry into Lake Polley.

Lessons Learned from the Two Major Tailings Dam Accidents

2020-9-28 Intensive investigation of these accidents revealed some similarities and discrepancies. The failure mode for both tailings dams was liquefaction flow. Considering that many other tailings dams are in similar conditions, it is likely that further failures may occur

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