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·Rath et al 2014 reported high extracellular chromate reductase activity under an optimised set of conditions from a Bacillus amyloliquefaciens strain isolated from chromite mine soil An
·On January 21 1960 a massive pillar collapse in the Coalbrook Coal Mine in South Africa killed 437 people and created a 2 000 000 m 2 subsidence area Szwedzicki 2001
·Deep crustal production of hydrogen H 2 is a potential source of primary energy if recoverable accumulations in geological formations are sufficiently report direct measurements of an elevated outgassing rate of 84% by volume of H 2 from the deep underground Bulqizë chromite mine in Albania
·A process mineralogical study based on three texturally and mineralogically different chromite bearing ore types at the Nkomati nickel mine was undertaken with focus on chromite
·Chromite ore processing tailings and low grade manganese ores are typically considered waste due to their limited or negligible utility leading to environmental and storage concerns Researchers globally have explored various methods to utilize or upgrade these wastes particularly because dumping chromite ore has been linked to severe health issues
·For example the Sukinda mine in Odisha India is the biggest chromite mine in the country where large scale chromium contamination has been reported Mishra & Sahu 2013; Nayak & Kale 2020; Das
·These industries are creating a huge amount of wastewater including solid sludge and Cr bearing waste for example tanneries effluent causing severe Cr pollution worldwide Yoshinaga et al 2018 Leaching and weathering chromite from mines and infiltrated water is also reported as a severe cause of soil and water pollution and becoming a
·Toxic effects of Cr on the plant shoot growth were recorded in various plant species Mohanty et al 2015;Patra et al 2018a; Patra et al 2020b The plant height reduction could be due to the
·Chromite mines produce large amount of chromium Cr Fantoni et al 2002; Das and Singh 2011 ; and sometimes by the mining activities Singh et al 2009 Studies revealed that the
·the author conducts fall and spring mining histo ry hikes for the Maryland Park Service highlight ing the legacy of the Choate Mine he history of this chrome mine covers nearly a century It was bought worked and resold several times during its life a typical phenomenon for mining opera tions Chromite or chromate of iron FeCr 2 O 4
·The different indices demonstrate that soils around chromite mine are significantly contaminated with Cr and Ni suggesting several times higher levels of toxic metals than normal ranges The above results revealed that the heavy metal concentrations increase with increasing the distance from the mine and mining pollutants can be transported to
·Research of KIEN et al [9] into chromite mines in Vietnam indicated that metals of primary concern at this mine are Ni Cu and Cr Chromite ore mine provides obvious source of contamination of several metals such as Cr Various metals typically occur along with Cr in chromite mine soil and water [14] A Pearson correlation matrix was used to
·The chromite mines studied are located in Muslim Bagh district Qilla Saifullah and the coal mines studied are located in Khushab Makarwal and Quetta The location map is shown in Fig 1 Sampling and sample pretreatment A total of 24 composite samples 14 from coal mines 5 from chromite mines and 5 from chromite ore
4 Mishra H Sahu HB 2013 Environmental scenario of chromite mining at Sukinda valley A review International Journal of Environmental Engineering and Management 4 287 292 5 Das S Ram SS Sahu HK Rao DS Chakraborty A et al 2013 A study on soil physico chemical microbial and metal content in Sukinda chromite mine of Odisha India
·The global demand for chromite Fe Mg Al Cr 2 O 4 is driven by the need for ferrochrome to be used in wide applications for manufacturing different materials Cramer et al 2004 The chromite mining as well as the overall mining sector in South Africa has historically been a crucial factor in the economic growth and advancement of the country Hamann 2004
·Hexavalent chromium is a highly toxic element generated due to indiscriminate chromite mining in Sukinda Odisha In the present research investigation a relatively higher Cr VI resistant 900 mg L −1 bacterium CWB 54 was isolated from the chromite mine on the biochemical and molecular analysis the strain CWB 54 was identified as
·Borehole logs from the Thaba mine compiled by Bachmann et al Health risk assessment showed that Cr in chromite mines exhibited a mean HI value of 00 that was higher than the safe
·Philippine Jurisprudence JOSE ROBLES vs ZAMBALES CHROMITE MINING COMPANY ET AL Republic of the Philippines SUPREME COURT Manila EN BANC No L 12560 September 30 1958 1956 the Zambales Chromite Mining Company filed a complaint for unlawful detainer against Jose Robles in the Justice of the Peace Court of Sta Cruz
·Particularly in the case of chromite mining and processing of mineral ore dry milling is recognized as the only step during ore beneficiation which has been concerned in the probable generation
·Toxicological assessment of CMQW generated due to chromite mining activities at Sukinda Valley has revealed high chromium contamination along with Zn and Fe The present study focused on the mechanism of chromate reduction by an indigenous multi metal tolerant bacterium Rhizobium pusense CR02 isolated from CMQW The isolated strain has shown
The firm mines two types of chromite ore refractory ore and metallic ore A wide range of foreign markets including Japan China India Germany Thailand South Korea and South Africa are served by the company MDO has established the Al Wusta Mining Company to produce high quality silica which will support the local glass industry
·Increasing population levels growing economies rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals leading to growing concerns regarding their availability and the global efficiency of the mine supply chain Mine tailings consisting of process effluents that are generated in a
·Schematic 3D view of the Bulqizë underground chromite mine A Map of the deeper levels with location of the H 2 bearing fault zone indicated B Locations where H 2 outgassing rates have been
DOI / Corpus ID 29045843; Investigation on mechanism of Cr VI reduction and removal by Bacillus amyloliquefaciens a novel chromate tolerant bacterium isolated from chromite mine soil
