Chromite mining pollution, environmental impact, toxicity

Sep 24, 2020 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, amounting to almost 95% of Cr available in India, and is the fourth most polluted site worldwide.

Chromite mining pollution, environmental impact, toxicity

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.

Potential Toxic Effects of Chromium, Chromite Mining and

Chromite ore mining and concentration produces overburden and waste rock, dust, tailings and tailings water. Ferrochrome production creates air pollution, dust, slag (waste produced during

REPORT ON ENVIRONMENTAL ISSUES OF CHROMITE MINING

3.1: Mine Drainage Water The State Pollution Control Board recorded the occurrence of Cr (VI) in the mine drainage water of the chromite mines in the Sukinda Valley in the late eighties. No techno economically viable treatment method for Cr(VI) was available then. Subsequently with the technical know-how from the National Environmental

Case Study: Chromite mining and processing

Chromium mining and processing In nature, chromium is found as chromite ore, composed of elemental iron, oxygen and chromium (FeOCr 2 O 3). 1,2 heavily in about a 700 m vicinity around the Countries with commercially significant chromite mines include Russia, South Africa, Zimbabwe, Turkey, the Philippines and India.2 Chromite ore is initially

(PDF) IMPACT OF CHROMITE MINING ON ENVIRONMENT IN

Chromite ore bodies in oxidized serpentinite therefore may generate hexavalent chromium from the inert chromites and cause hazardous chromium pollution of the water.

Sukinda, India The World's Most Polluted Places TIME

Source of pollution: Chromite mines and processing If you watched Erin Brockovich, then you know what hexavalent chromium is: a nasty heavy metal used for stainless steel production and leather tanning that is carcinogenic if inhaled or ingested. In Sukinda, which contains one of the largest open cast chromite ore mines in the world, 60% of the

Chromite Mining in Sukinda Valley in Odisha Countercurrents

Apr 01, 2019 Extensive mining of chromite in the area since several areas poses serious threats to the environment through pollution of toxic hexavalent chromium in soil and water bodies.

Impacts Of Chromite Mining Santa Fe Fire & Rescue

Impacts Of Chromite Mining. Impacts Of Chromite Mining; chromite mining water pollution caseconnectionzone. Mishra and Sahu (2013) reported that the environmental impacts of chromite mining in Sukinda Valley are caused by the presence of hexavalent Cr in mine drainage water, dust generation, overburden generation, and loss of biodiversity and forest.

Potential Toxic Effects of Chromium, Chromite Mining and

Chromite ore mining and concentration produces overburden and waste rock, dust, tailings and tailings water. Ferrochrome production creates air pollution, dust, slag (waste produced during

Environmental Scenario of Chromite Mining at Sukinda

pollution of Dhamsala nala. Discharge of mine effluent in to Dhamsala nala without proper treatment increases hexavalent chromium at some stretches of the nala. The environmental impacts of chromite mining in Sukinda valley are; 2.1 Presence of hexavalent chromium in mine drainage water Open cast mining in the Sukinda valley is carried out at a

Metal pollution in water environment and the associated

(2016). Metal pollution in water environment and the associated human health risk from drinking water: A case study of Sukinda chromite mine, India. Human and Ecological Risk Assessment: An International Journal: Vol. 22, No. 7, pp. 1433-1455.

Chromite ScienceDirect

Jan 01, 2016 Commercial chromite deposits that are large enough for mining are generally found in: (1) stratiform deposits, and (2) podiform deposits (Murthy et al., 2011, Papp and Lipin, 2001a).Other sources of chromite are laterites that are weathering products of peridotite. Laterites are more widely known as sources of nickel and cobalt ().Laterites have historically been a minor source of chromite

(PDF) An overview of chromite mining in Sukinda valley in

Extensive mining of chromite in the area since several areas poses serious threats to the environment through pollution of toxic hexavalent chromium in soil and water bodies.[ii] Water naturally occurring and discharged from mine quarries Purged Preeti Tej Singh due to excavation is also invariably contaminated with Cr(VI) and other heavy

Biochars evaluation for chromium pollution abatement in

The present work explored the prospect of corncob biochar (CCBC), Ipomoea biochar (IBC), and modified corncob biochar composites (MCBC) for abatement of Cr-polluted mine wastewater and overburden collected from Sukinda chromite mine, India. Biochars are produced through the thermo-chemical process at 300, 500, and 700 °C, and MCBC using 1 M FeSO4·7H2O at 800 °C.

(PDF) Geology, Mining and Environment with an Overview of

Chromite mine soils were heterogenous mixture of clay, mud, minerals and rocks. The pH of the soils ranges between 5.87 and 7.36. (air and water pollution) in the major northern industrial

Heavy metal contamination, physico-chemical and microbial

The chromite mine water samples possessed high concentrations of heavy metals in the order of Cr>Fe>Zn>Ni>Co>Mn while ground water did not show any heavy metal contamination except Fe. Physico-chemical parameters of mine water samples showed deviation from those of normal water.

Mining companies pollute waterways. Citizens pay. — High

Uncontrolled mining pollution has a literal ripple effect. Mine waste, heavy metals and acidic water often end up in streams and rivers. Mining has polluted the headwaters of more than 40 percent

How to Control Pollution in Mining Industry?

The mining Industry has to discharge millions of gallons of water every day to the adjacent water courses thereby may cause water pollution problems in and around the mining areas. Mine water discharge also forms the main source of various water supplies particularly potable in the thickly populated coal fields. A classification of mine waters

2015 Gold King Mine waste water spill Wikipedia

Background. Gold mining in the hills around Gold King was the primary income and economy for the region until 1991, when the last mine closed near Silverton. The Gold King Mine was abandoned in 1923. Prior to the spill, the Upper Animas water basin had already become devoid of fish, because of the adverse environmental impacts of regional mines such as Gold King, when contaminants entered the

The Mining effects and green solutions Follow Green Living

Several mine field workers have faced serious health threats due to the mining work that they indulge in. Several ecosystems and large stretches of forests have been severely affected by mining. Also, urban areas have faced problems like noise, water, soil and also groundwater pollution. The impacts of mining:

Underground Mining for Meeting Environmental Concerns A

Jan 01, 2015 Mining has several adverse impacts including air, water and soil pollution, socio-economic problems and effect on wildlife population and their behaviour. There has been greater stress on surface mining for boosting the production in our country, which has a larger environmental footprint compared to underground mining.

Occurrence and Evaluation of Chromium Reducing Bacteria in

Chromium pollution due to leaching and weathering of chromite mine overburden in mine seepage water is a serious environmental problem. In an attempt to explore the indigenous chromate resistant and reducing bacteria from chromite mine quarry seepage, 145 aerobic, heterotrophic bacteria were isolated from 14 mine seepage samples derived from chromite mines of Sukinda valley and Baula-Nuasahi

Chromite ScienceDirect

Jan 01, 2016 Commercial chromite deposits that are large enough for mining are generally found in: (1) stratiform deposits, and (2) podiform deposits (Murthy et al., 2011, Papp and Lipin, 2001a).Other sources of chromite are laterites that are weathering products of peridotite. Laterites are more widely known as sources of nickel and cobalt ().Laterites have historically been a minor source of chromite

Occurrence and Evaluation of Chromium Reducing Bacteria in

Chromium pollution due to leaching and weathering of chromite mine overburden in mine seepage water is a serious environmental problem. In an attempt to explore the indigenous chromate resistant and reducing bacteria from chromite mine quarry seepage, 145 aerobic, heterotrophic bacteria were isolated from 14 mine seepage samples derived from chromite mines of Sukinda valley and Baula-Nuasahi

Metal pollution in water environment and the associated

(2016). Metal pollution in water environment and the associated human health risk from drinking water: A case study of Sukinda chromite mine, India. Human and Ecological Risk Assessment: An International Journal: Vol. 22, No. 7, pp. 1433-1455.

(PDF) An overview of chromite mining in Sukinda valley in

Extensive mining of chromite in the area since several areas poses serious threats to the environment through pollution of toxic hexavalent chromium in soil and water bodies.[ii] Water naturally occurring and discharged from mine quarries Purged Preeti Tej Singh due to excavation is also invariably contaminated with Cr(VI) and other heavy

Environmental Scenario of Chromite Mining at Sukinda

pollution of Dhamsala nala. Discharge of mine effluent in to Dhamsala nala without proper treatment increases hexavalent chromium at some stretches of the nala. The environmental impacts of chromite mining in Sukinda valley are; 2.1 Presence of hexavalent chromium in mine drainage water Open cast mining in the Sukinda valley is carried out at a

Heavy metal contamination, physico-chemical and microbial

The chromite mine water samples possessed high concentrations of heavy metals in the order of Cr>Fe>Zn>Ni>Co>Mn while ground water did not show any heavy metal contamination except Fe. Physico-chemical parameters of mine water samples showed deviation from those of normal water.

Underground Mining for Meeting Environmental Concerns A

Jan 01, 2015 Mining has several adverse impacts including air, water and soil pollution, socio-economic problems and effect on wildlife population and their behaviour. There has been greater stress on surface mining for boosting the production in our country, which has a larger environmental footprint compared to underground mining.

Mining companies pollute waterways. Citizens pay. — High

Uncontrolled mining pollution has a literal ripple effect. Mine waste, heavy metals and acidic water often end up in streams and rivers. Mining has polluted the headwaters of more than 40 percent

2015 Gold King Mine waste water spill Wikipedia

Background. Gold mining in the hills around Gold King was the primary income and economy for the region until 1991, when the last mine closed near Silverton. The Gold King Mine was abandoned in 1923. Prior to the spill, the Upper Animas water basin had already become devoid of fish, because of the adverse environmental impacts of regional mines such as Gold King, when contaminants entered the

10 of the Most Polluted Places on Earth Live Science

Apr 20, 2011 Sukinda contains more than 97 percent of India's chromite ore deposits. Twelve mines operate without environmental controls, leaching hexavalent chromium into drinking water supplies.

Industrial iandfill sources of air, water and land pollution

The chromite mining has resulted in landfills which a re the sources of air, water and land pollution in Jajpur town. The town is surrounded with industrial chromium bearing waste. Because of the poor management of mining, water quality was affected due to toxic hexavent chromium beyond World Health Organization (WHO) standards of 0 mg/l.

Environmental impact of mining Wikipedia

Environmental impacts of mining can occur at local, regional, and global scales through direct and indirect mining practices. Impacts can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes. These processes also have an impact on the atmosphere from the emissions of carbon which have

ASSESSMENT OF CHROMIUM POLLUTION AT BAULA

mine discharge water. The goethite rich overburden material at chromite mines is an efficient sink for the chromate anion. Leaching experiments using a saline solution, phosphate solution and tap water showed that phosphate solution release more hexavalent chromium compared to other two solutions.