More

  • Chromite mining pollution, environmental impact, toxicity ...

    2020-9-24 · 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. Immediate solutions are

    MORE
  • (PDF) Retention of Anionic Pollutants by Overburden ...

    The goethite-rich overburden material at chromite mines is an efficient sink for the chromate anion. Leaching experiments using a saline solution

    MORE
  • Unsafe Chromium and its Environmental Health Effects

    2010-4-13 · considerable quantity of pollutants containing toxic hexavalent chromium (Cr+6). Chromite mining has vastly improved the economic status of several people in Orissa . But it has severely affected the ecology and reduced the forest cover. Pollution from these mines is mainly in the form of dust, slag and process water [5].

    MORE
  • ASSESSMENT OF CHROMIUM POLLUTION AT BAULA

    2010-5-17 · This study is conducted in and around one of the chromite mines of the Nuasahi-Baula igneous complex for assessing the Cr pollution. Hexavalent chromium was found between 0.002 and 0.006 ppm in groundwater and 0.008 to 0.036 ppm in mine discharges. The total chromium ranged between 0.002 and 0.007ppm in groundwater and 0.009 to 0.042 ppm in

    MORE
  • Potential Toxic Effects of Chromium, Chromite Mining

    2019-10-11 · underground chromite mine and ore processing facility in the Ring of Fire and a ferrochrome production facility (includes a chromite smelter) to be located somewhere in Ontario are currently undergoing economic feasibility studies and environmental assessments. Other companies also have plans for mining chromite and other metals in the same area.

    MORE
  • Perspectives regarding metal/mineral-incorporating ...

    Most chromite mine discharge water contains higher Cr(vi) concentration and electroplating effluent and ferrochrome, and leather tanning industries contain even higher Cr(vi) concentrations than the permissible limit. 23 Chromium compounds, of some significance considering human intake of the metal, can be used as an additive in water to ...

    MORE
  • Chromite - ScienceDirect

    2016-1-1 · 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 source of Cr

    MORE
  • Quantification of Heavy Metals in Mining Affected Soil and ...

    Several anthropogenic and natural sources are considered as the primary sources of toxic metals in the environment. The current study investigates the level of heavy metals contamination in the flora associated with serpentine soil along the Mafic

    MORE
  • 20 pollution disasters past, present and future

    2010-8-18 · The Sukinda Valley in Orissa state, India contains 97% of India’s chromite ore deposits—used mainly to make chrome plating and stainless steel. Mining processes leave toxic chromium hexavalent in surface and drinking water, the soil, and the air. Residents suffer from gastrointestinal bleeding, tuberculosis, and asthma.

    MORE
  • ASSESSMENT OF CHROMIUM POLLUTION AT BAULA

    2010-5-17 · This study is conducted in and around one of the chromite mines of the Nuasahi-Baula igneous complex for assessing the Cr pollution. Hexavalent chromium was found between 0.002 and 0.006 ppm in groundwater and 0.008 to 0.036 ppm in mine discharges. The total chromium ranged between 0.002 and 0.007ppm in groundwater and 0.009 to 0.042 ppm in

    MORE
  • Phytoassessment of in situ weed diversity for their ...

    Release of huge quantities of toxic hexavalent chromium (Cr 6+) owing to its widespread use in several industrial and mining activities is a major environmental concern in 21st century.The present in situ vegetation analysis at three study sites gives insight on Cr hyperaccumulation potentiality which evaluates the phytoremediation ability of abundant native weeds growing in

    MORE
  • High-resolution analyses reveal structural diversity ...

    To explore how heavy metal contamination in Chromite Ore Processing Residue (COPR) disposal sites determine the dissimilarities of indigenous microbial communities, 16S rRNA gene MiSeq sequencing and advanced statistical methods were applied. 13 soil samples were collected from three COPR disposal sites in Mouding of southwestern, Shangnan of northwestern and Yima

    MORE
  • Chromite - ScienceDirect

    2016-1-1 · 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 source of Cr

    MORE
  • Analysis and assessment of nickel and chromium pollution ...

    2015-7-1 · 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 ...

    MORE
  • Potential Toxic Effects of Chromium, Chromite Mining

    2019-10-11 · underground chromite mine and ore processing facility in the Ring of Fire and a ferrochrome production facility (includes a chromite smelter) to be located somewhere in Ontario are currently undergoing economic feasibility studies and environmental assessments. Other companies also have plans for mining chromite and other metals in the same area.

    MORE
  • Alleviation of hexavalent chromium by using

    Chromite mining water ... Several microorganisms which show potential for remediation of target pollutants in synthetic medium often do not work well with real, harsh, complex contaminated systems i.e. industrial effluents/wastewater. These effluents are complex in the sense that they are characterized by the presence of a mix of contaminants ...

    MORE
  • Meteorology drives ambient air quality in a valley: a case ...

    2016-6-11 · The ambient air quality (AAQ) assessment was undertaken in Sukinda Valley, the chromite hub of India. The possible correlations of meteorological variables with different air quality parameters (PM10, PM2.5, SO2, NO2 and

    MORE
  • Mining MoUs and concerns in Manipur - IPMSDL

    2020-7-21 · The Chromite mines in Sukinda valley generate significant quantity of pollutants containing toxic hexavalent chromium, a cancer-causing element. Mining companies involved in contamination in Sukinda like Balasore Alloys Ltd., signed MoU for chromite mining in Manipur.

    MORE
  • 20 pollution disasters past, present and future

    2010-8-18 · The Sukinda Valley in Orissa state, India contains 97% of India’s chromite ore deposits—used mainly to make chrome plating and stainless steel. Mining processes leave toxic chromium hexavalent in surface and drinking water, the soil, and the air. Residents suffer from gastrointestinal bleeding, tuberculosis, and asthma.

    MORE
  • ASSESSMENT OF CHROMIUM POLLUTION AT BAULA

    2010-5-17 · This study is conducted in and around one of the chromite mines of the Nuasahi-Baula igneous complex for assessing the Cr pollution. Hexavalent chromium was found between 0.002 and 0.006 ppm in groundwater and 0.008 to 0.036 ppm in mine discharges. The total chromium ranged between 0.002 and 0.007ppm in groundwater and 0.009 to 0.042 ppm in

    MORE
  • Analysis and assessment of nickel and chromium pollution

    2015-7-7 · 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 long distances from

    MORE
  • Occupational health assessment of chromite toxicity

    2016-3-29 · mining sector is 5,60,000, 4,90,000 (87%) in the public sector and 70,000 (13%) in the private sector, two of which around 70,000 work in metallic mines.[5,6] The mine workers are regularly exposed to dust of various potential pollutants and toxicants present in the mining environment such as chromium, lead, mercury, cadmium, manganese, aluminium,

    MORE
  • Potential Toxic Effects of Chromium, Chromite Mining

    2019-10-11 · underground chromite mine and ore processing facility in the Ring of Fire and a ferrochrome production facility (includes a chromite smelter) to be located somewhere in Ontario are currently undergoing economic feasibility studies and environmental assessments. Other companies also have plans for mining chromite and other metals in the same area.

    MORE
  • Mining MoUs and concerns in Manipur - IPMSDL

    2020-7-21 · The Chromite mines in Sukinda valley generate significant quantity of pollutants containing toxic hexavalent chromium, a cancer-causing element. Mining companies involved in contamination in Sukinda like Balasore Alloys Ltd., signed MoU for chromite mining in Manipur.

    MORE
  • Perspectives regarding metal/mineral-incorporating ...

    Most chromite mine discharge water contains higher Cr(vi) concentration and electroplating effluent and ferrochrome, and leather tanning industries contain even higher Cr(vi) concentrations than the permissible limit. 23 Chromium compounds, of some significance considering human intake of the metal, can be used as an additive in water to ...

    MORE
  • Alleviation of hexavalent chromium by using

    Chromite mining water ... Several microorganisms which show potential for remediation of target pollutants in synthetic medium often do not work well with real, harsh, complex contaminated systems i.e. industrial effluents/wastewater. These effluents are complex in the sense that they are characterized by the presence of a mix of contaminants ...

    MORE
  • Chromite Mining In Sukinda Valley In Odisha|

    The Odisha Voluntary Health Association (OVHA) reported that 84.75% of deaths in the mining areas and 86.42% of deaths in the nearby industrial villages occurred due to chromite mine-related diseases.

    MORE
  • Investigating the hexavalent chromium removal from

    2021-9-27 · Adsorption as a simple, environmentally friendly, and cost-effective method can eliminate different water pollutants than other techniques 37,38,39,40,41,42. This adsorption process is a surface ...

    MORE
  • Mining in Ontario - Ontario Nature

    2018-2-28 · largest chromite discoveries. It is located about 500 kilometres northeast of Thunder Bay. The deposit has attracted international attention from the mining industry and is estimated to be worth about $30 billion. Inter-national mining companies have staked 9,000 claims covering 480,000 hectares2. The Ring of Fire also includes significant ...

    MORE

About Us

LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together.

Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

read more

Contact us

Thank you for your interests in Liming Heavy Industry. Please feel free to submit your inquiry information to us. our sales manager will contact with you as soon as possible.

Email: [email protected]