Chromite Mines Related

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Chromite mining pollution, environmental impact, toxicity

网页2020年9月24日  Chromite mining activities are indispensable for production of goods and services. Sukinda is a major mining site of Odisha, India, polluted by chromium, which is highly toxic in its hexavalent form. The Sukinda valley is a rich source of chromites,

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Chromium contamination and effect on environmental

网页2021年5月1日  Leaching and weathering chromite from mines and infiltrated water is also reported as a severe cause of soil and water pollution and becoming a major concern

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Chromite ore beneficiation: prospects and challenges

网页2023年1月1日  Idiomorphic chromite is the only ore mineral appearing in economic quantities. The average content of the ore is 26% Cr 2 O 3 and the Cr/Fe ratio is 1.55.

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Chromite Ores, Mining, Processing Britannica

网页2023年7月19日  chromite, relatively hard, metallic, black oxide mineral of chromium and iron (FeCr 2 O 4) that is the chief commercial source of

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Chromitite layers indicate the existence of large, long-lived,

网页2022年3月8日  (a) Three orthogonal slices virtually cut through the UG1 sample (HX-07–153.33, Mototolo mine, Eastern Limb) showing chromite in light grey;(b) Segmented

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Chromitite Deposits of Turkey in Tethyan Ophiolites

网页2019年1月22日  The chromite deposits and occurrences in the lower part of Harmancık (Bursa) are shown in Fig. 3.10 and their features are summarised in Table 3.2. All

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Eco-toxicity of hexavalent chromium and its adverse impact

网页2023年1月1日  Sukinda valley has now become a “Valley of Despair”. Despite these optimistic and resilient effects, chromite mining and chromium showed various adverse

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Chromite mining The Oregon Encyclopedia

网页Chromite is a mineral that contains chromium. It is considered a strategic mineral, which generally means that it is necessary for military and industrial use during periods of national emergency. The strategic mineral concept

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Health risk assessment associated with heavy metals through

网页2022年5月13日  Heavy metals exposure through dust emissions pose a health risk to workers in coal and chromite mines. The processes involved in mining are noteworthy for

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On the way up: manganese, chrome ore, and ferro-alloy in

网页2019年3月6日  Accordingly, about 296 mines of chromite and manganese ore are saved by these measures. Creation of related common infrastructure on partnership basis may

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Chromite an overview ScienceDirect Topics

网页Chromite (Cr) occurs exclusively in mafic and ultramafic igneous rocks (Papp and Lipin, 2006).Although some Cr-based minerals such as crocoite (PbCrO 4), vauquelinite (Pb 2 Cu[CrO 4][PO 4]), uvarovite (Ca 3 Cr 2 [SiO 4] 3), and merumite (4(Cr,Al) 2 O 3 3H 2 O) are well known, chromite (FeCr 2 O 4) is the only one that is a commercially recoverable

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Metal biomonitoring using fractioned dust to investigate

网页2022年1月10日  Moreover, ROS-related important antioxidants CAT and SOD levels were significantly reduced in the exposed chromite mines and ore processing plants workers. On the other hand, control study participants showed lower levels of urinary toxic metals and blood MDA and other antioxidant activities (Figure S1 ).

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On the way up: manganese, chrome ore, and ferro-alloy in

网页2019年3月6日  Accordingly, about 296 mines of chromite and manganese ore are saved by these measures. Creation of related common infrastructure on partnership basis may be promoted to optimize land use. Small and medium steel enterprises, including FDI projects, may be encouraged to be set up in industrial corridors and in clusters under PPP (public

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Chromitite layers indicate the existence of large, long-lived,

网页2022年3月8日  (a) Three orthogonal slices virtually cut through the UG1 sample (HX-07–153.33, Mototolo mine, Eastern Limb) showing chromite in light grey;(b) Segmented chromitite showing how a single

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US CRITICAL MINERAL? YES MAIN USES IN GREEN

网页2022年8月1日  South Africa’s chromite mines also have labor relations issues related to opposition to the creation of labor unions at Glencore-owned mines (Jamasmie, 2013), wage disputes and a lawsuit regarding the transfer pricing and other financial crimes allegedly committed by Samancor. In India, environmentalists have denounced leaching and

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Chromite Ore Mining and Associated Factors in the Muslim

网页2021年11月1日  Background: Chromite is a metallic mineral composed of chromium, iron, and oxygen (FeCr2O4). Pakistan is bestowed with numerous economic minerals and chromite is one of them. It has major deposits in Muslim Bagh Ophiolites, Muslim Bagh area of Balochistan province, Pakistan. Objectives: The objectives of this study are to analyze

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How Afghanistan’s President Helped His Brother and a U.S OCCRP

网页2021年4月28日  Buying chromite from unlicensed local mines remains illegal in Afghanistan, but Ashraf Ghani’s election opened a rich new vein of opportunity. While the American Task Force and his own son once urged legalization of artisanal mining, the president has instead redistributed bureaucratic power, enabling extralegal activities.

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ANNUAL REPORT 2019-20 Tata Steel Mining

网页2021年5月16日  Sukinda Chromite Mine (SCM) of Tata Steel, located in Sukinda Block of Jajapur district of Odisha; extending from 20°39'N to 21°5'N latitude and from 85°37'E to 86°4'E longitude. diarrhea and respiratory related diseases. To prevent above, RISHTA team emphasized hand wash campaign across schools and communities and reached more

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Risk assessment of radon in soil collected from chromite mines

网页2019年11月1日  Chromite mines in Muslim Bagh are located in Ras Koh range and Wad area Tor Khula, which is situated in the southern east mountainous range of Muslim Bagh city (Fig. 2). About 300 to 500 tons of chromite are produced daily from Muslim Bagh mines. Health hazards related to radon and its progenies in chromite mines of Khanozai and

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Chromium contamination and effect on environmental

网页2021年5月1日  Leaching and weathering chromite from mines and infiltrated water is also reported as a severe cause of soil and water pollution and becoming a major concern 86.42% mortality was due to chromite mine-related diseases. People residing less than 1-km from the mining sites were severely affected, with 24.47% of residents suffered from

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Carbonatites: related ore deposits, resources,

网页2018年10月9日  Ground radiometric and magnetic methods are useful for follow-up surveys. A variety of geochemical (e.g. stream-sediment, soil, and till chemistry; ‘direct indicator minerals’) and biochemical methods have

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Optimization of Parameters for the Detoxification of Cr(VI)

网页2022年1月9日  Bioremediation can be an eco-friendly remedy to detoxify the Cr(VI) in which Chromium resistant microorganisms can be used. Three chromium resistant organisms were isolated from the ore soil of chromite mines. Isolated organisms were identified as Serratia nematodiphila, Bacillus cereus and Kocuria rosea using 16S rRNA sequencing. A

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(PDF) Economic geology of Heroshah chromite mines

网页2019年1月24日  Heroshah chromite deposits are part of Skhakot-Qila ultramafic complex associated with ophiolitic sequence in the vicinity of Main Mantle Thrust Zone (MMTZ) in NW Pakistan. The Heroshah chromite

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Refractory- and metallurgical-type chromite ores, Zambales

网页1986年7月1日  The Zambales ophiolite is the major source of chromite ore in the Philippines. The chromitites are concordant cumulates and are associated with distinct chromitite-bearing sequences within the mantle peridotites. Refractory and metallurgical chromite deposits are spatially separated and related to different lithologic associations,

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Tribal villagers in Odisha’s Sukinda eat chromite dust; govt

网页2021年7月19日  Over 98% of India’s chromite reserve is found in the Sukinda region of Odisha where water, air and land is highly contaminated due to chromite mining and the local Adivasis suffer its impact. Despite large funds collected in the state under the District Mineral Foundation, money is being used to build an international hockey stadium and

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A review of chromite mining in Sukinda Valley of India:

网页The review highlights the pros and cons of various physical, chemical and biological techniques used worldwide for the treatment of chromium waste and also suggests better and reliable bioremediation measures. Microbes such as Acidophilium and Acidithiobacillus caldus (Bioleaching), Pseudomonas, Micrococcus and Bacillus (Bioreduction

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Chromite mining The Oregon Encyclopedia

网页Chromite is a mineral that contains chromium. It is considered a strategic mineral, which generally means that it is necessary for military and industrial use during periods of national emergency. The strategic mineral concept was created during World War I and became law just prior to World War II with the passage of the Strategic Minerals Act

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Risk assessment of radon in soil collected from chromite mines

网页2019年11月1日  Average values of radium activity for Khanozai and Muslim Bagh chromite mines were found 3.02 and 3.09 Bq/kg, respectively. The values obtained for radon exhalation rate were found below the average value of 57.60 Bq/m 2 h recommended by UNSCEAR. Therefore, it is concluded that the mines understudy are safe from health

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Geology, Mining and Environment with an Overview of Sukinda Chromite Mines

网页Sukinda chromite mines located in Jajpur district of Odisha, India is one among those which has a high contribution towards economic growth for India but unfortunately suffers from above critical environmental consequences. It is also reported more than 80% deaths in heavily mined areas are caused by chromite-related diseases and within

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