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Potentially, the observed As tolerance could be explained by the origin of our microbial consortium in tailings derived from As-enriched gold ore (arsenopyrite). This study highlights the importance of considering metal co-contamination in bioreactor design and operation for SCN-bioremediation at …
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Chronicle of almost 30 years of Freeport mining operations in Indonesia. Based on mining concessions awarded by the government led by General Suharto in 1973, Freeport has …
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These tailings were collected from abandoned tin mine tailings on Bangka Island, Indonesia, and identified as RE's-bearing quartz with an enrichment of Er. One of their …
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A proven way of increasing the supply of critical raw materials is the processing of tailings generated during mining of cassiterite-bearing sands on the Indonesian Islands of Bangka, Beilitung, and Singkep [11].
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Typha angustifolia L. commonly called Lesser bulrush or Narrowleaf cattail, is one of the most predominant flora of the heavy metal enriched wetland of Jaduguda Uranium mine tailings, India. The luxurious growth of this plant is due to its ability to tolerate heavy metals, such as iron and manganese.This plant also grows abundantly in natural ...
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Tailings can contain both natural materials such as waste rock and chemically modified matter enriched in organic and inorganic phases . Its composition can be a helpful indicator of possible valuable metals left in parts …
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The next step was to build the conceptual model of sources, stressors and exposure pathways to receptors to help identify where exposures occur and the exposed ecosystems, a key step in the ERA ...
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Tailings from Singkep Island, Indonesia, contain monazite and xenotime as the primary REE carriers, with enrichment up to 94 times compared to the original waste.
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These tailings were collected from abandoned tin mine tailings on Bangka Island, Indonesia, and identified as RE's-bearing quartz with an enrichment of Er. ... Remote sensing exploration of Nb-Ta-LREE enriched carbonatite (Epembe/Namibia) Rem. Sens., 8 (2016), p. 620, 10.3390/rs8080620. View in Scopus Google Scholar. Cited by (0) 1.
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2. Results. The tailings were nutrient-poor compared to the soil from the control treatment (Table 1).There was a clear difference between the three soil treatments, with the control soil having the lowest pH and the tailings having the expected higher levels of PTMs (Table 1).This confirmed a PTM enrichment gradient from the control, which was the least …
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In Europe, tailings have been identified as an REE resource which can be exploited without opening a new mine (Peelman et al., 2016). In Bangka Island, Indonesia, a study conducted by Szamałek et al. (2013) discovered that tailings contain 99% of quartz and 1% of other minerals, including monazite and xenotime.
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Outotec receives major order for Planet Positive tailings filtration technology in Indonesia. ... 's end-to-end solutions integrate accurate, live data from various sources and incorporate advanced analytics enriched with machine learning, artificial intelligence, and the scope and scale of cloud. ...
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Heavy Metals Content and Pollution in Tin Tailings from Singkep Island, Riau, Indonesia (Kandungan Logam Berat dan Pencemaran di Lombong Timah dari Pulau Singkep, Riau, Indonesia)
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The deposited tailings are clearly enriched on the elements Ba, Bi, Cu, Hf and Zr and depleted of Ca, Li, Nb, Pb, Sc, V and Y. ... Papua New Guinea has three active deposits, while Indonesia, France, Greece and Turkey all have one each. Submarine tailing disposal is legally banned in the USA and Canada, and considered unsuitable in Australia ...
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the tailings (Figures 5 and 7), and Zn was highest in the control and in the gold tailings, while Cu had similar concentrations in the roots of all the treatments (Figure 6 ).
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Cyanide (in the form CN −) found in tailings tend to form iron-cyanide complexes (Jaszczak et al., 2017).Iron-cyanide complexes (solids) form part of the strong acid-dissociable cyanides (CN SAD), which are the most stable of the cyanide compounds (Zagury et al., 2004).CN SAD complexes render cyanide immobile unless exposed to extreme acidic …
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Organic fertilizer applications improve the growth of vegetable crops and chemical properties in the tailings deposition area at Timika, Papua, Indonesia. Nusantara Bioscience 12: 134-142.
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Ethylthionocarbamates (ETC), which is the most widely used as collectors in the flotation of sulfide, is known to cause serious pollution to soil and groundwater. The potential biodegradation of ETC was evaluated by applying a mixed culture of iron-reducing bacteria (IRB) enriched from tailings dam sediments. The results showed that ETC can be degraded by IRB …
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The activity of small scale gold mining (ASGM) in Indonesia has expanded to Lombok Island, West Nusa Teng-gara. The use of mercury (Hg) and the traditional mining process cause that the ASGM tailings waste still contains Hg. The tailings waste is piled up near paddy fields and residential areas so that it has the potential to pollute the en-
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Background and Aims Indonesia is one of the most biodiverse regions in the world, but only a few metal hyperaccumulator plants have been reported from this vast country. This study aimed to discover rare earth element (REE) hyperaccumulator plants on Bangka Island, an area known to have REE enriched soils associated with tin placer deposits. Methods Prior to …
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Crinum bulbispermum, a Medicinal Geophyte with Phytostabilization Properties in Metal-Enriched Mine Tailings Plants (Basel). 2023 Dec 26;13(1) :79. doi: 10 ... The results indicated that mine tailings negatively affected the growth and development of C. bulbispermum. Although the survival rates indicated that it could survive on tailings, its ...
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Carmo FF, Kamino LHY, Junior RT, Campos IC, Carmo FF, Silvino G, Pinto CEF (2017) Fundão tailings dam failures: the environment tragedy of the largest technological disaster of Brazilian mining in global context.
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A mine tailings dam planned for a seismically unstable area of Sumatra's rainforest would be at high risk of failure, experts warn. The dam's collapse would be a disaster, they say, releasing a wall of slurry that would …
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The Reclamation program in tailings (SIRSAT : sand tailings) is the obligation of the holder of the mining concessions of PT Freeport Indonesia (PTFI). Impact of the operation of copper and gold mining at Grasberg, PTFI has made reclaimed tailings at DLA (Double Levee Area) -Timika.
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Request PDF | Growth Response, Gas Exchange, and Leaf Anatomy of Handroanthus spp. Seedlings in Mine Tailings Enriched with Nutrient Solution | This work aimed to evaluate the effects of nutrient ...
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The majority of the mercury contamination in Indonesia's soil derives from the country's widespread practice of mercury amalgamation gold refinement and indiscriminate dumping of tailing waste [33].
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Zircon tailings containing rare earth metals are one of the alternative raw materials from secondary sources in Indonesia. The objective is to determine the effects of several …
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Gold mine tailings enriched the soil with HM and also affect soil physicochemical properties. Proper management of mine wastes must be ensured to prevent their adverse effects on the diversity ...
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Total amount of tailings produced by PT Freeport Indonesia from Grasberg mining area in Timika are about 230 000 tons/day.
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Under general supervision, maintain performance of tailings impoundments, crushed leach pads, water dams, and related facilities through inspection, measurement, interpretation, coordination, and ...
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