Currently, there are about 3,500 tailings dams worldwide. The contents of the tailings themselves depend on what mineral is being mined, though the process of creating them is generally similar ...

In the operation stage, fresh slurry is continuously deposited in the tailings storage facility; due to the process by which it is produced, this presents alkaline pH characteristics in the range of 9.0 to 11.0, which allows the acid solutions that may be produced in the tailings storage facility to be neutralized [2,12]. It should be noted ...

The risk of tailings dam-break disaster is dependent on the type of slurry and its flow characteristics. The flow characteristics of slurry surging from tailings dams collapse are directly influenced by grain size, breach width, slurry concentration, and surface roughness of the gully. Among these parameters, slurry concentration plays the …

1. Introduction. Conventional surface impoundment retaining structures are designed to provide storage for both mine water and tailings. There are two major types of surface impoundments, namely water-retention type dams and raised embankment dams [Citation 1–3].These dams are different in the sense that water retention dams are …

The gold mining process involves crushing the ore into sand and dust to liberate and recover the gold. What's leftover is called tailings. Ballarat Gold Mine uses its robust management and monitoring processes to make sure its produced gold tailings comply with all license conditions and permits necessary for the safe storage of tailings.

The Basics. Currently, there are about 3,500 tailings dams worldwide. The contents of the tailings themselves depend on what mineral is being mined, though the …

DOI: 10.1017/CBO9780511524844.011 Corpus ID: 128453859; Surfactants: Surfactants in Athabasca Oil Sands Slurry Conditioning, Flotation Recovery, and Tailings Processes @inproceedings{Schramm2000SurfactantsSI, title={Surfactants: Surfactants in Athabasca Oil Sands Slurry Conditioning, Flotation Recovery, and Tailings Processes}, …

Slimes and ultra-fines present a challenge to metallurgists and tailings engineers. Many have spent years thinking about alternative ways to store, process or dry this troublesome mining waste stream. The characteristic of many slimes streams can make tailings management, slurry storage and filtration very tricky.

Through the experimental study, it is observed that, with the decreasing of slurry concentration, the impact force and velocity of slurry increased in varying …

Slurry tailings are usually the product of a de-sliming process in the coal preparation plant, where material below a size between 1 and 0.1 mm is separated. This sizing process is achieved using large quantities of circulating water, sometimes up to 10 m 3 /h of water for every tonne of fine raw coal to be removed, prior to the main gravity ...

portion of global tailings practice that still uses the NPV approach. This way of thinking leads to tailings being stored as a slurry in surface facilities that are often initially too …

The 2019 Brumadinho tailings dam collapse can be explained by strain weakening behaviour and the growth of a sub-horizontal slip surface through internal creep deformation under constant stress ...

Tailings slurry can be transported by gravity flow if the tailings storage facility (TSF) is sufficiently lower than the concentrator. Such gravity flow can be achieved in long …

In tailings pond, the residues are usually deposited as water-based slurry before recycle/reuse or discharge to environment. To prevent the discharge of process-affected water of tailings pond to surface water directly, tailings ponds were first introduced to store the residue before discharge or reuse.

To investigate the flow and depositional behavior of tailings slurry, a full-scale model test system capable of simulating the formation of tailings beaches was developed. An empirical formula for the beach slope was proposed, and the model flume was designed accordingly. The model system comprised four main components: the …

Tailings generated from mining activities are typically deposited hydraulically (i.e., as a slurry) in tailings storage facilities. Consolidation of mine tailings can take a very long …

The feasibility of the harmless treatment of cyanide tailings via ETC slurry electrolysis was preliminarily determined through experiments. This system required only the addition of NaCl and oxidized cyanides in cyanide tailings under the application of an electric field, and no harmful substances were generated in the process.

The tailings from the re-processing plant will be re-deposited in a new area far from urbanization, allowing for the rehabilitation of the real estate currently occupied by these historic tailings. The first step in the process involves a mild-regrind and mild acid leach of the tailings (pH 2.5 to 3.0) to dissolve up to 40% of the uranium.

Mine tailings include process-affected water, containing dissolved metals and ore processing reagents and fine-grained ground-up rocks after minerals of value …

In this study, MCM-41 was prepared from the gold mine tailings slurry as an alternative silica source. The effects of the reaction time, temperature, and pH adjustments on the synthesis of MCM-41 were investigated. The optimum condition for the synthesis process of pure and highly ordered MCM-41 from tailings slurry was found to be at 30°C for 60 …

DOI: 10.1016/j.mineng.2020.106488 Corpus ID: 225181371; Optimization of flocculation and settling parameters of tailings slurry by response surface methodology @article{Wu2020OptimizationOF, title={Optimization of flocculation and settling parameters of tailings slurry by response surface methodology}, author={Aixiang Wu and Zhu-en …

About Tailings. Tailings is a common by-product of the metals and minerals recovery process. It usually takes the form of a liquid slurry made of fine metal or mineral particles and water – created when mined ore is crushed and finely ground in a milling process. From the mill, the tailings is typically pumped to storage facilities which are ...

Typically, a tailings slurry transport system design is based on deterministic inputs: minimum and maximum bounded ranges or set values of the key criteria that are treated …

The filling slurry prepared from the tailings of the tailing pond shows roughly the same change trend as the above slurry, but the change law is not obvious, which cannot be expressed by one kind ...

For increasing the slurry pH, a 50% NaOH solution was prepared and added to the thickeners feed stream. The operating data were collected when the process was deemed to have reached a steady state. Variation of slurry pH of the tailings thickeners before and after pH adjustment is shown in Fig. 4. The pH of thickeners increased from …

He says slurry rheology—the physics of the flow of matter—is often overlooked when designing pipelines. "Slurry rheology range is a key influencer in pipeline design. At this stage in the process, you need to know the rheological properties of the slurry you're working with," he says. "Otherwise, you could be in big trouble later on

Figure 1: Increased water recovery efforts are creating tailings slurries that are far denser and more abrasive. The tailings plot thickens. Entrained water in tailings makes them much easier to handle. A slurry with high water content flows with reduced pressure loss through piping and tends to be far less abrasive.

Deposition techniques. Tailings can be discharged using subaqueous (below water) or subaerial techniques (above the water line, on the ground or on the tailings beach) (DPI 2003). The choice between these methods can dramatically effect how the tailings deposit and settle within the impoundment. The tailings characteristics themselves can also ...

Processing complex slurries. July 7th, 2020. The dilution alternative: Emerging options to improve how we process complex slurries. by Dr Chris Vernon. Pipeline transport of minerals and waste is a major component …

The flocculation technique has been proven fruitful for separating beneficiation wastewater from tailings slurry in the thickening process. The tailings flocculation is significantly affected by the feed solid concentration and flow characteristics, however, it is difficult to capture the local solid concentration and the resulting variation in flow …