The prime chromite deposits of India are shown on the accompanying sketch map (Fig. 2). The main chromite deposits have been found in the part of states: i) Sukinda-Nausahi Belt, Orissa, ii) Nuggihalli, Sindhuvalli, Talur belt, Karnataka, iii) Bhandara, Nagpur-Chandrapur belt, Chromium contamination and its impact on the environment
Air, water and soils are severely contaminated by toxic substances mainly 'Cr(VI)' in and around the chromite mines [10]. In the Sukinda mining area, million tons of solid waste have been generated in the form of rejected minerals and overburden material resulting in environmental degradation causing lowering in the water table with ...
Citation: Sahoo HB (2017) Geology, Mining and Environment with an Overview of Sukinda Chromite Mines. J Earth Environ Sci: JEES-125. DOI: 10.29011/JEES-125. 100025. Received Date: 10 July, 2017 ...
Concentrations of As, Cd, Cr, Cu, Ni, Pb, and Zn in tap water, surface water, and soil samples, were analyzed to assess the potential adverse human health effects based on the Hazard Index (HI ...
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 …
Chromite is an oxide mineral belonging to the spinel group, a complex mineral containing magnesium, iron, aluminum, and Cr in varying proportions, depending on the deposit, that can be represented as FeCr 2 O 4 or (Fe 2+,Mg) [Cr,Al,Fe 3+] 2 O 4 ( Murthy et al., 2011; Sanchez-Segado et al., 2015 ).
Chromium (chromite) mining operations can generate specific problems related to tailing water. There is a serious threat to human health and ecosystems when chromium-contaminated tailing water is ...
Open cast chromite mining in this area generates huge quantity of pollutants containing toxic hexavalent chromium a known carcinogen, well above the national and international permissible limits of 0.05 mg/l (ppm), which contains 10-4000 mg/kg (ppm) of total chromium in air, water and soil environment. Exposure to chromium occurs through the ...
Chromite mining dust and water spills containing poisonous hexavalent chromium produce the most unfavorable conditions in water bodies and soil, rendering them unsuitable for human and plant use.
Chromium (Cr) Ore. Modified date: 23/04/2023. Chromium (Cr) ore refers to a natural mineral deposit that contains chromium in its raw form. Chromium is a chemical element with the symbol Cr and atomic number 24. It is a hard, lustrous, and corrosion-resistant metal that is widely used in various industrial applications due to its unique …
The mining of iron ore also causes water pollution of heavy metals and acid that drains from the mines. How is chromite ore important to society? Chromite is important because it is the only economic ore of chromium, an essential element for a wide variety of metal, chemical, and manufactured products.
Presently there are 14 chromite mines operating in Sukinda. Out of these, one mine, Mahagiri Chromite Mines (IMFA) has started its operation of mining lumpy chromite, recently at the foot hills of the Mahagiri hill range. So far no mine drainage water has been generated. The following report pertains to the impacts of the remaining 13 …
water by chemicals used in mining process, ... Potential Toxic Effects of Chromium, Chromite Mining and Ferrochrome Production: A Literature Review. 56 p: i-x, 6-21. 39-
A long-term bench scale treatability study was performed to assess the ability to remediate chromite ore processing residue (COPR) using calcium polysulfide (CaS 5).COPR materials were characterized with respect to particle size, pH, curing period and mineralogy.A stoichiometric ratio of sulfide species to hexavalent chromium (Cr 6+) of 2 …
Chromite mining dust and water spills containing poisonous hexavalent chromium produce the most unfavorable conditions in water bodies and soil, rendering them unsuitable for human and plant use ...
Toxicological assessment of CMQW generated due to chromite mining activities at Sukinda Valley has revealed high chromium contamination along with Zn and Fe. ... (VI) reduction by an indigenous Rhizobium pusense CR02 isolated from chromite mining quarry water (CMQW) at Sukinda Valley, India Environ Sci Pollut Res Int. 2023 …
Chromite is the most important chromium ore mineral. It forms a complete solid solution series with many other members of the group, eg. in the Chromite-Hercynite Series, Chromite-Spinel Series, Chromite-Magnetite Series and the Chromite-Magnesiochromite Series.It is the iron analogue of Zincochromite, Cochromite, Manganochromite and …
Sukinda Valley, one of the highly polluted areas of the world is generating tons of mining waste and causing serious health and environmental issues in its surroundings. Several reports are available …
The Sukinda chromite mines are located between 21˚00' to 21˚05' N latitude and 85˚44' to 85˚53' E longitude (Toposheet No. 73 G/16, 73 H/9, and 73 H/13) in the Jajpur district of Odisha (Fig. 1 (a)).The mining area is a 'V'-shaped valley that primarily trends NE-SW and is surrounded by Daitari hill (200 m) and Mahagiri hill (300 m) in the north …
chromite mining. Food chain contamination: Air, water and soil of Sukinda Valley is being polluted every moment as a result of chromite excavation. Hexavalent state of chromium is the main culprit. From water and soil the responsible agent (toxic metals) is entering into microscopic living organisms and from there it is
Zimbabwe and Kazakhstan are other major producers. Combined with Zimbabwe, Southern Africa has 90% of global chromite reserves and produces 50% of the world's chromite ore. Chromite is mined primarily from the UG2, and LG and MG chromitite seams of which the UG2 also contains significant amounts of PGE's. Thus several platinum mines produce ...
environmental impact assessment of chromium extraction (chromite mining) and giving recommendations to minimize the negative effects of this activity. Field observations, questionnaires, chemical analysis of soil and water, meetings and interviews with central and local institutions as well as with residents were used for the
This review presents the state of knowledge about chromium mobility and distribution in the environment and the physiological responses of plants to Cr with the desire to understand how these processes influence the ability to use low cost, environmentally friendly biological remediation technologies to clean up Cr-contaminated soils, sediments, and waters.
Water Quality Assessment and Correlation Study of Physico-Chemical Parameters of Sukinda Chromite Mining Area, Odisha, India December 2018 DOI: 10.1007/978-981-10-5792-2_29
Chromium. CHROMIUM : Chromium is a chemical element with the symbol Cr and atomic number 24, belonging to the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Used extensively …
As with other types of mining wastes, chromite mine wastes have the potential to cause serious environmental contamination [25]. Elmaci Mining Inc. (Kayseri/Turkey) deals with zinc, lead, chrome mines and focused especially on chrome ore product containing higher than 54% Cr 2 O 3 rate in Turkey. Pinarbasi quarries have a …
2.1. Environmental and human health impacts. In this study, we selected six main categories of emissions (CO 2, PM 2.5, NMVOC, N 2 O, NH 3, and CH 4) to reflect the effects of climate change on various regions.The emission inventories that have not impacted the industry chain due to the epidemic were obtained from the environmental …
Ferrochrome industry is one of the biggest contributors of the chromium pollution to the water bodies. South Africa has the world's largest chromium reserve. The waste materials produced by ferrochrome industry are slag, dust and processed water. ... its toxic effect from chromite-mining and ferrochrome industries, and its possible ...
Abstract In this study, modeling and optimization tests were conducted on enrichment of chromite ore by Knelson concentrator. For this purpose, the three-level Box–Behnken experimental design method was applied. The analysis of variance (ANOVA) was used at 95% confidence interval to test the significance of independent variables …
DOI: 10.1002/tqem.21931 Corpus ID: 253354743; Mining activities influencing the nutritional status of soil and water near a chromite mining site of Odisha, India @article{Nanda2022MiningAI, title={Mining activities influencing the nutritional status of soil and water near a chromite mining site of Odisha, India}, author={Swayamprava …
During mining process, the chromite ore as well as the waste rock material are dumped in the mining area without considering the environmental aspects that causing the damage to the topography as well as contaminating the surface water bodies (Dhakate and Singh 2008).
It has been proved that approximately 80 percent of mining disasters are preventable provided that these laws get enforced efficiently and it is necessary that the mine workers must follow adequate safety compliances. Orissa accounts for 95 percent of the chromium ore reserves of India. It increases the economic status, but adversely reduces the …
Chromite mining is new to Canada. Proposals by Cliffs Natural Resources would see open-pit mining as well as underground operations over the next 30 to 40 years.
Abstract. Supply of world chromite (chrome ore) has come under severe pressure over the past year driven by strong demand for ferrochrome used in ferroalloy production for making stainless steel. Many of the strategic minerals are inputs into products in fast-changing markets. This article reviews the major process flow sheets in practice …
2. Chromium in the Environment: Natural Occurrence and Anthropogenic Source. Chromium exists in the environment in a number of valence states, whose most stable forms, Cr (VI) and Cr (III), are characterized by different properties [].The main source of Cr (III) in the environment is a natural one and it is related to chromite ore …
Abstract. In the present investigation, an attempt is made to examine the interdependencies among the operating parameters and their interactional effect on the separation performance of a water-only cyclone for treating ferruginous chromite fines. Statistically designed experiments are carried out, and empirical models are developed …
Sukinda Valley, Orissa is known for its chromite ore deposits. The open cast mining for chromium is being carried out since 1950. The extraction of chromite has mostly been carried out by open ...
SUMMARY OF RESEARCH. The ground water in the valley occur at a depth of 8mtr to 11mtr and when comes in contact with atmospheric air and chrome ore during opencast. mining is contaminated w ith ...
