XRD pattern of the copper ore tailings sample.
According to X-ray diffraction (XRD) tests, the tailings contained quartz (32%), albite (30%), muscovite-3T (23%), microcline (12%), kaolinite-1A (2%), and clinochlore-IIb-4 (1%) minerals.
copper ore tailing sampling
Characterizations of heavy metal contamination, microbial …
We also compared the differences of heavy metal concentrations among the six sampling sites in the same tailing and found that significant differences exited in copper and zinc. ... antibiotic efflux appeared to be the most abundant type in this copper tailing (Fig. 5 C). Table 1. Number and relative abundance of HMRGs and ARGs in the …
Recovery of Copper from Leached Tailing Solutions by …
copper from leached mining tailings. The tailing samples were taken from an abandoned deposit in the north of Chile and, after an acid leaching, copper was adsorbed, for which the kinetics of adsorption and the equilibrium isotherms were studied, applying the Freundlich and Langmuir models.
Molecules | Free Full-Text | Speciation Characterization and
Copper slag tailings, primarily stemming from pyrometallurgical processes, predominantly consist of a silicate matrix [].It is estimated that 2–2.2 tons of slag tailing are generated for every ton of copper produced, and approximately 40 million tons of slag are generated from global copper production [2,3,4].Unfortunately, slag tailings are often …
Natural radioactivity of a copper–zinc mine with a …
The dose rates of an underground copper-zinc mine and the radioactivities of collected samples were measured using a surveymeter and a gamma-ray spectrometer. There was no significant difference found between mine dose rates and background radiation in the region. The average activity concentrations of 226Ra, 232Th, and 40K in …
Geochemical Characteristics of Tailings from …
Every tailing sample from every drill core was analyzed by using the five-step sequential extraction method for water-soluble adsorbed exchangeable carbonate (AEC), Fe (oxy)hydroxides, Fe oxides and …
Extraction of Iron and Other Metals from Copper Tailings …
Currently, mining operations have increased the generation of tailings, which contain a variety of elements that can be valorized. In this research, tailing samples were leached with hydrochloric acid of concentrations greater than 3 M, considering the monitoring of iron, copper, aluminum, calcium and magnesium, as relevant elements of …
(PDF) Copper Upgrading and Recovery Process from Mine Tailing …
The copper concentrate obtained from the flotation of tailings [30] was used as feed sample in this study. To achieve an excellent copper dissolution from the concentrate of flotation tailings ...
Keeping Up with Demand: Copper Tailing …
Recovering copper is a crucial strategy to keep up with demand. One approach is to reprocess mining tailings to extract the vital copper resources within.
Molecules | Free Full-Text | The Development of Innovated …
The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied. It was shown that water leaching provided selective extraction of Cu and Zn and comparatively low …
Hydrometallurgical Recovery of Copper Tailing Waste …
As the ore is processed, the remaining tailing ... A. Collection Site and Sample Analysis The copper tailing waste was collected from Hindustan Copper Limited, Khetri, India which is situated at ...
MANAGEMENT OF TAILINGS: PAST, PRESENT AND FUTURE
copper production, particularly in Chile, increased significantly. The failure resulted in almost immediate industry-initiated changes to tailings facility construction in Chile. These included: • using dozers to flatten the downstream slope to about half (from an angle of repose of wet sand of about 2.5 horizontal to 1 vertical to about 4 to 1),
Post-Leaching of Silver from a Non-Sulfide Lead–Zinc Ore …
Abstract The post-leaching of silver (Ag) from a non-sulfide lead–zinc (Pb–Zn) ore flotation tailing leach residue in a copper–ammonium thiosulfate solution was investigated. Ag (89.7%) was extracted into the leaching solution under the following conditions: 30 g/l ammonium thiosulfate, 0.5 g/l copper sulfate, 25 °C leaching …
The chemistry and toxicity of discharge waters from …
Abstract Copper mining generates large quantities of waste, tailings, and acid outflows causing long-term environmental impacts and potential threats to human health. Valea Şesei is the largest tailing impoundment in Romania, created by flooding the valley (known as ValeaŞesei) of the Metalliferous Mountains (a division of the Apuseni
TENORM: Copper Mining and Production Wastes | US EPA
Copper mining waste storage piles may be as large as 1,000 acres and typically include three types of waste; tailings, dump and heap leach wastes, and waste rock and overburden. The amount of marketable copper produced is small compared to the original material mined. Several hundred metric tons of ore must be handled for each …
Co-occurrence Interaction Networks of Extremophile Species …
A representative sampling of six zones from the Cauquenes tailing was carried out to determine pH, heavy metal concentration, total DNA extraction, and subsequent assignment of Operational ...
Enhanced flocculation and sedimentation of copper tailings …
The copper tailing sample used in this study was obtained from Dexing Copper Mine, Jiangxi Copper Co., Ltd (Jiangxi Province, China), which is the largest open-pit low-grade copper mine in Asia. It generates about 100 million tons/annual of copper tailings and transports them to tailings ponds over long distances.
The Use of Acid Leaching to Recover Metals from Tailings: A …
One particularly significant and recently studied waste stream is mine tailings, a byproduct of sulfide ore concentration procedure [].These tailings are transported to tailings deposits [] with a focus on achieving chemical and physical stability [2,6].To meet these objectives, it is imperative to remove toxic agents and potential sulfuric acid …
Tailings potential: recovering metals from mine waste streams
After securing investment, the plan is to manufacture DRAM units nearby, using agricultural waste to make the filters. Miners can then choose to pay a subscription fee to have a unit at their site, through which waste will be filtered and collected and transported to a central hub, ran by local women, for chemical processing.
Mineralogical characterization of copper sulfide tailings …
As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) …
Geochemistry of a copper mine tailings deposit in Repparfjorden
Within copper mining and extraction, the resulting tailings usually account for a high proportion (up to 99%) of the mined ore (IIED, 2002). Submarine tailing disposal is considered to be a viable option as the tailings are not visible on land, may be more stable on the ocean floor and are less likely to oxidize in the submarine environment.
Profile of Bacterial Communities in Copper Mine Tailings …
After the extraction of economic metals, the resulting mixtures are deposited as sediments over wide areas, forming distinctive tailing mounds at both active and abandoned mines [1,2].The composition of mine tailings varies depending on the mineralogy of the ore deposit and the processing methods [].Mining tailings from …
Co-occurrence Interaction Networks of Extremophile Species …
Copper mining tailings are characterized by high concentrations of heavy metals and an acidic pH, conditions that require an extreme adaptation for any organism. ... which is the largest copper waste deposit worldwide. A representative sampling of six zones from the Cauquenes tailing was carried out to determine pH, heavy metal …
SAMPLING METHODS FOR IMPOUNDED TAILINGS
Available Methods of Sampling Tailing Deposits ..... 3 Review of the Literature ..... 5 Methods of Sampling Selected ... J,* Effect of Revaluation on the Gold-Mining Industry. A.I.M.E. Trans,, vol. 126, 1937, p. 302. ... The Ohio Copper Company 5 in 1928 sampled copper bear ing mill tailing with 5-inch post auger holes to a maximum
Minerals | Free Full-Text | Ore Minerals and Metal …
Copper ore resources in Lubin, such as the Głogów Copper District (Legnicko–Głogowski Okreg Miedzionośny (LGOM)), ... (OS) tailing pond. The sampling location is presented in (Figure 3A–C). To prepare the samples, they were washed on a sieve with a pore diameter of 0.063 mm with distilled water. The grain size composition …
Co-occurrence Interaction Networks of Extremophile …
Cauquenes copper tailing, which is the largest copper waste deposit worldwide. A representative sampling of six zones from the Cauquenes tailing was carried out to determine pH, heavy metal concentration, total DNA extraction, and subsequent assignment of Operational Taxonomic Units (OTUs). According to the elemental
Processing Tests, Adjusted Cost Models and the Economies …
Standard cost models with capex and opex for flotation, leaching, and magnetic separation were adopted to the needs of tailings reprocessing. A copper tailing (around 2 M t) that …
Development of copper recovery process from flotation …
A sample of flotation tailings obtained from Bor Mining, Serbia, was used in this study. The chemical compositions of the initial sample (flotation tailings) and feed …
Extraction of Iron and Other Metals from Copper …
In this research, tailing samples were leached with hydrochloric acid of concentrations greater than 3 M, considering the monitoring of iron, copper, aluminum, calcium and magnesium, as …
Rapid detection of copper ore grade based on visible …
The comparison result is the detection result of 1 copper ore sample. After comparison, the detection cost of the traditional method is nearly 20 times more than the method proposed in this paper, and the detection time is also nearly 10 times more than the method proposed in this paper. ... Iron Ore Tailing Composition Estimation Using Fused ...
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