Metal accumulation in riverine macroinvertebrates from a platinum
The macroinvertebrates accumulated metals associated with Pt mining, with epi-benthic dwelling taxa (Tubificidae) accumulating higher concentrations of Pt and Cr than other …
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Metal contamination and toxicity of soils and river sediments from …
Trace element concentrations in the Hex River are naturally high (geogenic source), however, increased anthropogenic activities, such as intensive platinum mining activities, …
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Widespread diminishing anthropogenic effects on calcium in
Calcium (Ca) is an essential element for almost all living organisms. Here, we examined global variation and controls of freshwater Ca concentrations, using 440 599 water samples from 43 184 ...
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The effects of chrome mining activities on the water quality of the …
This study assesses the water quality status of the Hex River downstream of Kroondal Mine (KMS15, sampling point located downstream of Kroondal Mine) and the effects of mining activities (Kroondal Chrome Mine) on the water quality of the Hex River in Rustenburg, which is in the North West Province of South Africa. Potential pollutants were identified, …
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Metal accumulation in riverine macroinvertebrates from a platinum
The data from the three river sites, mine settling pond and urban effluent were subjected to a PCA biplot and Fig. 2 presents an integrated spatial ordination of the abiotic variables. ... observed, while Site 3, mine settling pond and urban effluent displayed more . Key metals for mining, byproducts and waste. Platinum mining in South Africa ...
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ESG risks to global platinum supply: A case study of Mogalakwena Mine
The Mogalakwena River Catchment covers an area of 19,327 km 2 and the Mean Annual Runoff is around 140 m 3 /a. It is fully developed and farmers and communities rely on two small dams - Doorndraai Dam and Glen Alpine Dam – and borehole water from the Mapela Regional Water Scheme. ... The platinum mining industry and the apartheid mineral ...
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sbm/sbm effect of calcium from platinum mining on rivers.md at …
sbm effect of calcium from platinum mining on riversPublications SR 68 Alaska Division of Geological, DGGS SR 68 Publication Details,Barrow Mining District; Base Metals; Bethel …
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Tuning acid extraction of magnesium and calcium from platinum …
Optimizing calcium and magnesium extraction from platinum group metal mine tailings for enhanced CO 2 storage via a pH-swing process. Our research addresses the …
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effect of calcium from platinum mining on rivers
effect of calcium from platinum mining on rivers. Posted at: April 18, 2013 [ 4.9 - 4492 Ratings ] ... Hot Products Used for effect of calcium from platinum mining on rivers …
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Could South African mine wastes provide a
Overall, South African diamond and platinum mine wastes could represent one of the largest untouched CO2 removal sources in the world. The challenge of enhanced weathering is to find methods that speed up magnesium and calcium release from minerals, without producing more CO2 or other greenhouse gases. Enhanced weathering methods include ...
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Two Rivers Platinum Mine: the orebody, the mining method; …
Two Rivers Platinum Mine (TRP) is a 55:45 joint venture between African Rainbow Minerals and Impala Platinum, respectively. TRP is situated on the farm Dwarsrivier 372KT, in the southern sector of the eastern limb of the Bushveld Complex. Dwarsrivier is underlain by rock formations
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Mining wastewater treatment technologies and resource recovery
This manuscript reports on the effect of mining wastewater on the environment. ... High concentrations of Hg and MeHg were detected on the soil in the surrounding mining sites, rivers, and ... Lorenz A.W., Nachev M., Wepener V., Sures B., Smit N.J. Metal accumulation in riverine macroinvertebrates from a platinum mining region. Sci. ...
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Evaluating the environmental and economic impact of mining for …
World's largest producer of Manganese and platinum and second-leading producer of palladium with 80% of the world's known manganese reserves. 72% of the world's known chromite ore reserves ... Fig. 4 below shows the mining effect on two different rivers (river Ankobra, left and River Aseesre, right) in Ghana by illegal small-scale mining ...
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Concentration Trends for Lead and Calcium-Normalized Lead in …
Lead (Pb) and calcium (Ca) concentrations were measured in fillet samples of longear sunfish (Lepomis megalotis) and redhorse suckers (Moxostoma spp.) collected in 2005-2012 from the Big River, which drains a historical mining area in southeastern Missouri and where a consumption advisory is in effect due to elevated Pb concentrations in fish.
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The environmental costs of platinum–PGM mining and sustainability…
The mining of PGM ores is through conventional underground or open cut techniques. The next stage is grinding and gravity-based (or dense media) separation, followed by flotation to produce a PGM-rich concentrate. The run-of-mine ore grades are typically several g/t, while concentrates are some hundreds of g/t (Vermaak, 1995). Concentrate is ...
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(PDF) Effect of Mining on Heavy Metals Toxicity and Health Risk …
Heavy metal contamination of selected rivers in the mining areas of Ghana was studied. In the study, 44 composite water samples were collected, digested, and analyzed for selected metals using ICP-MS.
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A global rise in alluvial mining increases sediment load in tropical rivers
In 30 countries in which mining affects large (>50 m wide) rivers, 23 ± 19% of large river length is altered by mining-derived sediment, a globe-spanning effect representing 35,000 river ...
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Platinum group elements in stream sediments of mining zones: …
Platinum and other metals associated with platinum mining activities can enter the Hex River from untreated mining water, seepage from tailing dams, runoff from waste dumps or via aerial ...
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Effect of calcium and magnesium on neurotoxicity and blood platinum
Background: Whether the administration of calcium (Ca) and magnesium (Mg) can reduce oxaliplatin-related neurotoxicity remains controversial. In addition, little is known about the effects of Ca/Mg on the blood level of platinum or objective tumor progression. Patients and methods: Patients receiving modified FOLFOX6 for metastatic colorectal cancer were double-blinded …
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Tuning acid extraction of magnesium and calcium from platinum …
Mineral carbonation offers a method to store CO 2 in alkaline-rich mine tailings, addressing both waste and excess atmospheric CO 2. This study explores the use of a pH-swing process to optimize the extraction of calcium and magnesium from plagioclase feldspar-rich platinum group metal (PGM) mine tailings from the Stillwater Mine in Nye, Montana.
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Metal contamination and toxicity of soils and river sediments from …
Platinum concentrations were higher in the mining area than in the non-mining area. For most metals, the sediment silt and clay fraction contained the highest metal …
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Assessing the blue-water footprint of an opencast platinum …
cially for platinum production, is yet to be fully determined. Since research in this field is limited, opportunities existed for a comprehensive water footprint to be carried out for a platinum mining operation. In a report entitled 'Platinum group metals in South Africa', Diliza (2008) states that the Bushveld Igneous Complex (BIC)
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Effect of water quality improvement on the remediation of river
The results showed that the treatment effect of Calcium nitrate + composite functional microorganisms + Low-DO (dissolved oxygen) aeration (CN/CFM/LDA) was the best, in which 2.5 g calcium nitrate, 1 g functional bacteria and intermittent aeration (0.1 m 3 /h, 3 h per day) were utilized for the remediation of 500 g sediments within 40-day ...
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ENVIRONMENTAL AND LAND USE EFFECTS FROM MINING …
PDF | The research sought to establish the Environmental and Land Use effects from Mining and Quarrying activities in Kwale County. | Find, read and cite all the research you need on ResearchGate
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The Environmental Impact of Salt Mining
This post will explore the different types of salt mining, their environmental consequences, and potential solutions for minimizing these impacts. Types of Salt Mining. Rock Salt Mining (Traditional Mining): This method involves extracting solid salt deposits from underground mines. Rock salt, also known as halite, is mined in a manner similar ...
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The impact of gold mining on the Witwatersrand on the rivers and …
Mining activities can pollute freshwater systems with toxic contaminants that can damage the environment and cause risks to human health. In South Africa, mercury is a contaminant of major concern ...
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Water Pollution Resulting From Mining Activity: An Overview
Possibly, the weightiest after effect of a mining is its effects on water resources. The impact of mining on surface and groundwater is due to spill erosion, sedimentation, acid mine drainage ...
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Neurotoxic Effects of Platinum Compounds: Studies in vivo on
3.1. Platinum Compounds and Calcium Homeostasis. Despite the differences in the neurotoxic effects of the two platinum analogs, cisPt and PtAcacDMS, ascribable to a different mechanism of action, we can consider, as a common involved factor, the intracellular calcium concentration, that mediates the effectiveness and the toxicity of anticancer ...
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Widespread diminishing anthropogenic effects on calcium in …
Soils and rocks in the catchments of water bodies can contain substantial amounts of calcium-bearing minerals like calcium carbonate (CaCO 3), which reacts with carbonic acid (H 2 CO 3) …
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(PDF) Impact of the ban on illegal mining activities on raw water
The Government of Ghana prohibited Artisanal and Small-Scale Mining (ASM) operations from 2017 to 2018 as part of its strategy to address the socio-environmental issues caused by illegal mining ...
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