A tailing sample was collected from a tailing storage facility (TSF) of a Zn, Cu, and Pb mining site in Australia. ... relative to a typical (Mg, Fe) dolomite phase. In terms of abundance of these minor carbonate phases, Dolomite (Mn) and Calcite were measured at levels of about 1–2% maximum (by area) in the head sample, Dolomite (i.e., Mn ...Web
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The spent ore are mainly composed of quartz with lesser amounts of calcite, feldspar, chlorite, mica, amphiboles and pyrite as illustrated in the X-ray diffraction pattern of the tailing sample ...Web
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The results from mineralogical characterization indicated that quartz, sericite, calcite and pyrite were typical minerals, cumulatively accounting for over 80% of the tailings. ... All samples at the profile depth of 0-1 m and >4 m were mixed into a composite tailing sample (CTS1 and CTS4), respectively. All samples were stored in the labeled ...Web
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Selective separation was achieved with 85.18% calcite removal while only 11.2% of fluorite was lost. ... schedule for the flotation of calcite from fluorite was evaluated by flotation experiments using a single mineral sample flotation test. ... A tailing with 48.01% of fluorite and 3.78% of calcite was produced and further processed to obtain ...Web
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1.. IntroductionMine tailing deposits in southeast Spain are inhospitable to plant growth, because of low carbon and nitrogen contents, high acidity, saline conditions, and elevated contents of metals (e.g., Conesa et al., 2006, Ottenhof et al., 2007).In addition, these tailing deposits pose environmental hazards associated with dam breakage, water …Web
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Precipitation of calcium carbonate in soils is becoming an increasingly common method of soil stabilization that has been shown to increase the strength and liquefaction resistance …Web
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The mineralogical characteristics of a phosphate tailing were studied, and the occurrence state, mineral types, and embedded characteristics of phosphorus in the phosphate tailings were ascertained. The results show that the main minerals in the phosphate tailings are collophane. The main gangue minerals are quartz, dolomite, …Web
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Microbially induced calcite precipitation could be applied during the operation of mining tailings depostis, with different potential objectives: removal or immobilization …Web
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Niujiaotang Zn-rich mine (A), tailing and soil sample locations (B), tailing dump (C), iron (oxyhydr) oxides in tailing (D), and paddy soil (E). 2.2 Analysis of physical and chemical parameters. ... Given the dominance of calcite and/or dolomite in the tailings from MVT zinc mines, environmental risk derived from high Cd carbonate minerals in ...Web
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SEM images of individual grains in the unoxidized tailing sample (a dolomite–calcite–galena association; b sphalerite–galena association, c, d pyrite) and in the oxidized tailing sample (f sphalerite is completely replaced by smithsonite with small unaltered galena as inclusions, g galena partly replaced by cerussite and anglesite, h ...Web
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The corresponding egg white concentration of calcite-type calcium carbonate was 5%. At this time, ... The gel layer fills the pores on the surface of the tailing sample, causing the reaction liquid unable to continue to penetrate into the next layer. Under the continuous operation of the peristaltic pump in the upper part of the device, the ...Web
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Use the gear icon on the search box to create complex queriesWeb
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3. Sampling and Analysis Plan • Conceptual model developed indicated that sampling needed to consider sub-aerial and sub-aqueous tailings • Oxidation of sulphides in sub …Web
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One kg of fine paste tailing sample (dried at 40 °C, sieved <2 mm) was subjected to kinetic tests to predict the longer-term acid drainage behavior. ... The presence of calcite and magnesium calcite in paste tailings samples (XRD analysis) can determine that the neutralizing processes will be relevant for the generation of AMD; however, it is ...Web
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Detailed field sampling and laboratory methods were used to characterize the hydraulic properties of the tailings, their bulk chemistry, mineralogy, pore water and effluent chemistries. The tailings are composed of REE-enriched calcite (64–89 wt %) and fluorapatite (2–22 wt %), as well as biotite (6–17 wt %) and chlorite (0–7 wt %).Web
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Fig. 1 represents the particle size distribution of the tailing sample, which depicts that 80% of the. Feed characterization. ... Further, the fluidized bowl was found more effective at eliminating entrapped calcite mineral particles than the UF bowl. The effectiveness of both bowls is assessed in recovering heavy particles of various sizes ...Web
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The number and size of tailing dams increased rapidly with the increase in the demand for minerals and metals. There are over 18,400 tailing dams worldwide (Azam and Li, 2010). ... Then the calcite particle was placed in the middle of each sample in sample preparation so that the calcite particle is in a similar stress condition each time. The ...Web
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50 mm in diameter with a selected paste-tailing sample (M4) from Florida gold mining. Sample preparation for cylindrical columns was achieved by drying the sample at 60 CWeb
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treatment of mine tailings through two methods of calcite precipitation: (i) using natural mineral trona, (ii) microbially induced calcite precipitation via denitrification Author …Web
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Point-wise sampling of a tailing body . Once a tailing body has been adequately characterised and an assay . methodology is designed, it is possible to sample potential spatial tar-Web
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Hy-logger3 technology reported the presence of carbonate phases, such as calcite (CaCO3) and dolomite (CaMg(CO3)2) (Florida mine information). ... To the sampling, 1 kg of tailing samples was collected from the surface of the paste-tailing deposit. Sampling considers paste samples from the first 15 cm of the tailingsWeb
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One tailing sample was taken from the impoundment no. 3 of the company. ... In the deposits, calcite is able to neutralize the acid water formation, which is usually formed by the oxidation of pyrite and can mobilize heavy metals from the tailings. So, it can be stated that the two tailing samples are similar in terms of mineralogical ...Web
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Detailed field sampling and laboratory methods were used to characterize the hydraulic properties of the tailings, their bulk chemistry, mineralogy, pore water and effluent chemistries. The tailings are composed of REE-enriched calcite (64–89 wt %) and …Web
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At each sampling location, three random replicates were collected at each soil profile and combined to form one composite (i.e., uniform) sample. In total, 36 soil samples were collected. Approximately 1.0 kg of each the tailings and the soil sample were placed in a labeled polyethylene bag and sealed; samples were immediately transported …Web
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Instead, the analysis showed a major presence of quartz, mica minerals, albite and calcite. Mine tailing sample Tian is from dolomitic limestone ore, the main minerals are phosphate mineral laueite, dolomite and calcite in addition to quartz and chlorite. Group 2 samples diverse significantly from each other on the basis of mineralogy.Web
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The comparison examined the coagulation of tailing slurry, flotation rate and separation efficiency. 2. Experimental2.1. Materials. The ore sample used in this work was collected from the feed ore of the fluorite flotation circuit in the Las Cuervas concentration plant. The ore sample consisted of fluorite, quartz, calcite and clay minerals.Web
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The measured calcite content increase for each interval is therefore an average increase over the whole 1.5 cm of the sampled layer. From the exponential calcite content increase seen in the T5.3 sample and visual inspection of the treated specimen, most of the calcite had precipitated in the upper 2 mm of the specimen.Web
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This study aims to investigate the potential of the PIC wastes (WRDs and tailings) as a secondary resource of rare earth elements (REE) and its possible …Web
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The sampling tool was placed under the tailing stream at the r i ght side of the dr um and moved to the ot her side of the drum with a uniform speed ( F ig. 2.c). The transfer r a te of the ...Web
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Mixed scheelite and calcite flotation tests have been conducted were conducted with mixed OPS/BHA collectors at pH 9 using 300 mg/L water glass and the result is shown in Table 2. It can be seen from Table 2 that the recovery of scheelite is 76.28% and the grade of WO 3 is 61.41%.Web
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e sample for this test is a phosphate tailing; the chemical composition and mineral composition of phosphate tailings were analyzed. e mineral structure, embedded properties,Web
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3. Methodology3.1. Sampling and samples preparation. The sampling of mining waste from PIC includes 60 rock samples collected from the WRDs (approx. 1 to 12 kg/each) and tailing samples from up to 2 m-deep trench (approx. 5 kg/each) from 16 sampling points, collected with shovels and soil samplers (Fig. 1, sample geolocation …Web
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The sampling points for soils and technogenic soils (Fig. 1a) are as follows: located outside the mine and tailing dumps TP1 (mountain brown-taiga soil), TP2, T9 (~ 5 km from the southern boundary of the tailing dump, alluvial soil), TP10 (garden soil Ekimchan village, 12 km from Tokur village) taken as conditional background; T1—dump …Web
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