(PDF) REEs Evaluation in Abandoned Mine Tailings

Secondary resources at abandoned mine tailings, Giyani Greenstone Belt, Limpopo Province of South Africa ... I thank you for your help in answering my questions related to fieldwork regulation in Indonesia. ... In general, HREEs are more likely to have more mobility than LREEs and thus, LREEs are enriched and HREEs are depleted gradually during ...

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Indonesian miners eyeing EV nickel boom seek to dump waste …

Nickel-mining companies in Indonesia have pitched the government to allow them to dump their waste, or tailings, into the sea. The country is the world's biggest producer of …

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Geology Chapter 12 Flashcards

acidic leachate, normally rich in heavy metals, that drains from tailings and underground mines, and which forms from the chemical reaction between water and sulfide minerals commonly found in ore deposits and coal. ... a sedimentary deposit of highly enriched, aluminum minerals that form from the chemical weathering of silicate rocks over a ...

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First insight into the natural biodegradation of cyanide in a gold

The disposal of mining wastes that contain cyanide are dumped in tailings from gold extraction is a public concern in mining countries such as South Africa. Many studies have shown the potential of microorganisms to degrade cyanide. ... First insight into the natural biodegradation of cyanide in a gold tailings environment enriched in cyanide ...

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Tailings

Tailings are the finely ground natural rock particles that remain after economically valuable minerals have been processed or extracted from the mined ore. PT-FI's tailings are specifically managed to be geochemically benign, helping to …

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Soil microbial community variation in vanadium-enriched farmland

This study investigated microbial responses in agricultural fields surrounding the VTM tailings in the Panzhihua region, revealing relationships among metal presence, soil properties, and microbial community structure. V was identified as the main toxic element, which greatly influenced soil physicochemical property and microbial assembly.

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PT Freeport Indonesia

Due to the specific topography, seismic activity, and rainfall in excess of 10 meters in some places, we employ a controlled tailings management system wherein river currents transport …

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Crinum bulbispermum, a Medicinal Geophyte with

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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Mine Tailing

Additionally, riverine disposal of tailings, which currently takes place in Indonesia and Papua New Guinea (Shimmield et al., 2010; Vogt, 2013), have also direct impacts on shorelines and …

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Geochemistry of a copper mine tailings deposit in Repparfjorden

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. A hard pan horizon occurs at 20 cm sediment depth in large parts of the inner inlet, which seems to have precipitated during the deposition of tailings. ... Papua New Guinea has three active deposits, while Indonesia ...

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First insight into the natural biodegradation of cyanide in a gold

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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Organic fertilizer applications improve the growth of vegetable …

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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Bioaccumulation of Mercury by Bacteria Isolated from Small …

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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Why a Big Mining Project Could Wipe Out Rural Villages in Indonesia

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 engulf and bury Indigenous villages and their inhabitants.

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Outotec receives major order for Planet Positive tailings

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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Critical Minerals from Post-Processing Tailing. A Case Study from

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 …

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RI UFLA: Growth response, gas exchange, and leaf anatomy of

Growth response, gas exchange, and leaf anatomy of Handroanthus spp. seedlings in mine tailings enriched with nutrient solution: Palavras-chave: Yellow ipe Purple ipe Reforestation Fertilization Iron mining sediments Potentially toxic elements: Data do documento: 14-Jul-2022: Editor: Springer: Citação:

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Biogeochemical dynamics of nutrients and rare earth elements …

The microorganisms such as cyanobacteria, algae, lichens, mosses, fungi and bryophytes are commonly the first colonizers of soil surface and can form a complex living skin with soil particles, so called biological soil crusts (biocrusts) (Belnap et al., 2016).The biocrusts have been observed at the earliest succession stage in kinds of metallic tailings (Sun et al., …

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Tailings

Tailings Management; Non-Mineral Waste Management; Mine Closure & Reclamation; TAILINGS MANAGEMENT PROGRAM. Tailings – Americas; Tailings – Indonesia; REPORTS AND DOCUMENTS. Audits, Assessments & …

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Bioaccumulation of Mercury by Bacteria Isolated from Small …

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 …

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Bioaccumulation of Mercury by Bacteria Isolated from Small …

The activity of small scale gold mining (ASGM) in Indonesia has expanded to Lombok Island, West Nusa Tenggara. The use of mercury (Hg) and the traditional mining process cause ASGM tailings waste still contains Hg. Tailings waste is piled up near paddy fields and residential areas so that it has the potential to pollute the environment.

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Comparison of Environmental Impacts of Deep-sea Tailings …

With increasing metal prices and declining ore grades, new mines are getting larger and mine waste disposal and management have become more difficult, particularly from an environmental perspective. While technologies keep on improving, the available space for terrestrial mine waste disposal is limited. Thus, several coastal countries still consider deep …

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Stabilization and solidification of tailings from a traditional gold

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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Crinum bulbispermum, a Medicinal Geophyte with …

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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Critical Minerals from Post-Processing Tailing. A Case Study from

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 of the unexploited deposit owing to either a big depth of occurrence, lack of adequate technology, lack of awareness of ...

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Tailings

Given the unique and challenging site-specific topographical, hydrological and geotechnical conditions at PT-FI, the controlled riverine tailings management system remains the best approach when considering the volume of tailings …

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Crinum bulbispermum, a Medicinal Geophyte with …

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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Jobs/In Tailings Engineer Jobs in Indonesia

Find your ideal job at Jobstreet with 323 Jobs/In Tailings Engineer jobs found in Indonesia. View all our Jobs/In Tailings Engineer vacancies now with new jobs added daily!

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Why a Big Mining Project Could Wipe Out Rural …

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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Mine Tailing

In addition, they have low organic matter content, high rock fragments, low permeability, and water retention. When the tailings contain minerals enriched in sulphides, it triggers the formation of acid mine drainage with the subsequent acidification of the nearby soils. ... one mine in Indonesia and 3 mines in Papua New Guinea still conduct ...

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