Tailings management is typically easier, at least physically, in dry climates, where advantage can be taken of desiccation (that is, drying by exposure to the wind and sun) to naturally dewater, increase the density of the tailings and strengthen the tailings.
For the last several years in Indonesia, a team of Polish geologists have been evidencing and examining dumping sites and tailings generated by ongoing …
Indonesia already has a copper and gold mine that practices deep-sea tailings disposal, or DSTD, with devastating impacts on the local ecosystem, activists say.
REEs are not recovered and therefore the Sn mine tailings contain REEs largely as monazite and xenotime, which in turn are weathered, leading to the …
At Ramu in Papua New Guinea, MCC was able to adopt deep-sea tailings disposal (DSTP). However, Indonesia has, for now, not permitted the use of deep-sea tailings disposal and therefore tailings need to be stored on land. The outlawing of DSTP was a ruling which also meant that the HPAL projects were delayed somewhat while …
and the availability of surface areas enriched in the target element (Van der Ent et al. 2015a). Considering ... Indonesia and Zambia. Below we outline the present status of some of these ... mines and tailings storage facilities were visited in the Copperbelt Region of Zambia. Three Cu-Co
In addition, this amount of tailings discharged to the deep oceans is unlikely to exceed the natural deep-sea mineral deposits associated with hydrothermal vein systems in mid-ocean ridges. These ridges are highly enriched in metals.
This paper builds on previous reviews and case studies to consider (1) tailings disposal options (2) impacts and recovery potential from tailings disposal in the deep sea, and (3) the role of scientific information in analysis of case studies.
For example, the Batu Hijau copper–gold mine on the island of Sumbawa, Indonesia operates a deep-sea tailings placement (DSTP) facility to dispose of the tailings within the offshore Senunu Canyon (Angela et al., 2013). ... The copper and cobalt were significantly enriched in the polymetallic enriched ore powder at 10.76 and 7.12 …
Indonesian miners are turning to high-pressure acid leaching to produce nickel for batteries, but their waste management plans will face a major challenge in a wet environment and may put the …
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 …
Mining generates 13 billion tonnes per year of potentially toxic wet slurry waste, called tailings, commonly deposited in tailings storage facilities (TSF).
This work aimed to evaluate the effects of nutrient solution application on ecophysiological characteristics of Handroanthus serratifolius and Handroanthus impetiginosus cultivated in iron mine tailings. Sixty-day-old seedlings of both species were transplanted into mine tailings maintained at maximum water-holding capacity. …
Although similarly enriched in known SCN⁻-degrading strains of thiobacilli, this consortium differed in its source (mine tailings) and metabolism (autotrophy) from those of previous studies.
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 …
This study proved that the bacteria isolated from ASGM tailings have a great potential to be used as Hg bioaccumulation agents. 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 that the ASGM tailings waste …
This study aims to present the characters and composition of detrital sediment on Senunu seabed. It illustrates the influence of land sediment sources on sediment …
In this study, the Fe-containing tailings (Fe-TO) ore was reutilized and enriched with FeCl3 as a heterogeneous catalyst for the Fenton process to degrade the organic dyes from aqueous solution. The determinants of the heterogeneous catalytic Fenton system which included iron modification ratio, solution pH, cataly
from Small Scale Gold Mining Tailings in Lombok, Indonesia ... (NB) medium enriched with HgCl 2 in the laboratory. Bacillus subtilis and Burkholderia cenosepacia isolated from the West
Semantic Scholar extracted view of "First insight into the natural biodegradation of cyanide in a gold tailings environment enriched in cyanide compounds." by Megan D. Welman-Purchase et al.
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 operating conditions ...
This work aimed to evaluate the effects of nutrient solution application on ecophysiological characteristics of Handroanthus serratifolius and Handroanthus impetiginosus cultivated in iron mine tailings. Sixty-day-old seedlings of both species were transplanted into mine tailings maintained at maximum water-holding capacity. …
Known as deep-sea tailings disposal (DSTD), this type of dumping is already practiced by copper and gold miners in Indonesia — with devastating impacts on local ecosystems, activists say.
The first use of a 2-m-deep permafrost cover for tailings in the Canadian Arctic (Kyhn and Elberling 2001) allowed tailings acid to be suppressed in cold winter temperatures, and the combination of low temperature and high water content inhibited oxygen migration and reactions, while the same effect was hardly guaranteed in …
This study investigated the recovery of nickel from tailings (0.2% Ni) obtained in a chromite beneficiation plant using H2SO4 leaching followed by oxalic acid precipitation. The tailings were characterized using mineral liberation analysis. Ni was found as Fe-Ni, Fe-Ni-Co sulfide minerals, which were encapsulated in serpentine, …
An assessment by the World Bank's internal watchdog has found indications of "extreme" environmental and social risks posed by a China-backed zinc and lead mine in Indonesia's Sumatra Island.
The analytical results clearly show that the mine tailings are, in relation to the natural materials lying under and on top of the tailings, enriched in the elements Ba, Bi, Cu, Hf and Zr. Elements such as As, Cr, Re, Th show a slight increase in concentration in the depths that are affected by tailings.
Seepage from oil sands tailings ponds (OSTP), which contain toxic naphthenic acids (NAs), can infiltrate into groundwater. ... Microbial consortia enriched from clay sediments displayed higher capability in consuming both labile organic matters and recalcitrant NAs than those enriched from sand sediments. The biodegradability of …
ADVANCES IN PROCESS METALLURGY Leaching Behaviour and Kinetic of Light and Heavy Rare Earth Elements (REE) from Zircon Tailings in Indonesia GYAN PRAMESWARA,1,2 IGA TRISNAWATI,1,3 PANUT MULYONO,1 AGUS PRASETYA,1,4 and HIMAWAN TRI BAYU MURTI PETRUS1,4,5 1.—Department of Chemical …
This finding supported the hypothesis that M. sinensis grown in tailings may recruit some diazotrophs as keystone taxa and also confirmed the DNA-SIP results that Pseudomonas and Stenotrophomonas were enriched in the heavy 15 N DNA fractions.
These metal-enriched mine tailings can disrupt birds' as well as animal migration habits, threatening their ability to reproduce and survive (Scanes, 2018). HMs in this waste can accumulate in water as well as soil, polluting these ecosystems along affecting plant growth as well as aquatic organism health.
Bioaccumulation of Mercury by Bacteria Isolated from Small Scale Gold Mining Tailings in Lombok, Indonesia [PDF] Related documentation. Development of Bioaccumulation Factors for Protection of Fish and Wildlife in the Great Lakes; Lakes: Ann, Gilchrist, Grove, Leven, Reno, Villard, Smith)
At nearly every metal mine site, some form of mineral processing occurs, and tailings are being produced. In metal mining, the extracted ore mineral s represent only a small fraction of the whole ore mass; the vast majority …
Submarine tailings placement in Buyat Bay was the preferred tailings disposal method as approved by the Government of Indonesia for the Mesel Mine, located in North Sulawesi, Indonesia. In-situ tailings porewater assessment studies were conducted to evaluate the post-depositional behaviour of mercury and arsenic …
When it comes to the near-term supply of nickel for the fast-growing EV battery demand side, all eyes are on Indonesia. This commentary takes a closer look at Indonesia's nickel strategy.
In many countries, such as Brazil, Colombia, Ecuador, Indonesia, Venezuela and Zimbabwe, amalgamated tailings are leached with cyanide to recover remaining gold.
enriched soils and deposits or for extracting REEs in phytomining from soil and industrial by-products and wastes, such as coal ash, red muds, mine tailings (Gaustad et al. 2021). Despite the growing impor-tance of discovering new species of REE hyperac-cumulator plants, of 721 identied hyperaccumula-
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