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Mining industry of Nigeria

Mining regulation is handled by the Ministry of Solid Minerals Development which oversees the management of all mineral resources Mining law is codified in the Federal Minerals and Mining Act of 1999 Historically Nigeria's mining industry was monopolized by state-owned public corporations Get price

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Selenium

Selenium is a chemical element with the symbol Se and atomic number 34 It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table sulfur and tellurium and also has similarities to arsenic It rarely occurs in its elemental state or as pure ore compounds in the Earth's crust Get price

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Nigeria and the Selenium Micronutrient: A Review

mining and milling of minerals [34] In West Africa Senegal has the highest soil selenium concentration [35] Available evidence shows that the plasma selenium concentration in African countries such as Burundi Zambia Malawi Zaire and Nigeria is inadequate [36] Analysis of soil selenium in erosion-challenged Oba andGet price

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Dispersion of Cadmium Lead and Zinc in Soils and

Ecosystem in Nigeria M A OLADE Geology Department University of Ibadan Nigeria ABSTRACT Primary ores and naturally enriched rocks constitute one of the main sources of anomalous metal concentrations in the environment In the search for economic mineral deposits geochemists have delineated areas where excesses of such heavyGet price

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The Many Benefits of Selenium

Apr 25 2016By Dr Mercola Selenium is an essential mineral found in varying concentrations in soil It's found in foods such as Brazil nuts sunflower seeds and garlic but the amount in any given food depends on the selenium content of the soil in which it was grown Get price

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Energy Crisis in Nigeria: Need for Renewable Energy Mix

Energy Crisis in Nigeria: Need for Renewable Energy Mix Tunde Olaoye 1 Titilayo Ajilore 2 Kunle Akinluwade 3 Femi Omole 4 Adelana Adetunji 5 1 Department of Manufacturing Services Prototype Engineering Development Institute Ilesa Nigeria 2 Department of Physics and Solar Energy BOWEN University Iwo Nigeria 3 Department of Research and Development Prototype Engineering Get price

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Dispersion of Cadmium Lead and Zinc in Soils and

Ecosystem in Nigeria M A OLADE Geology Department University of Ibadan Nigeria ABSTRACT Primary ores and naturally enriched rocks constitute one of the main sources of anomalous metal concentrations in the environment In the search for economic mineral deposits geochemists have delineated areas where excesses of such heavyGet price

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Selenium in soils under climate change implication for

Those anthropogenic activities which are sources of Se include coal and oil combustion mining activities the utilization of rock phosphates as a fertilizer and the application of sewage sludge to agricultural land It was thought that selenium was a toxicant for a Get price

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Assessment of Trace Metal Levels in Commonly Edible

Consumption of food contaminated with heavy metals is a major source of health problems for man and animals Three commonly edible Leafy vegetables (Amaranthus hybridus Celosia argentea Cochorus olitoris) from Agboju and Iba markets Lagos Nigeria were sampled identified digested and analyzed with the aid of Atomic Absorption Spectrophotometer (AAS) as directed by APHA (American Public Get price

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CHEMICAL CHARACTERIZATION OF SILICA SAND

CHEMICAL CHARACTERIZATION OF SILICA SAND DEPOSIT FROM RIVER KATSINA-ALA NORTH CENTRAL REGION OF NIGERIA S P Malu1 C A Edem2 and B I Ita2 1 Department of chemical sciences Federal University Wukari Taraba State Nigeria 2 Departments of Pure and Applied Chemistry University of Calabar Calabar Nigeria Get price

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(PDF) Nigeria and the Selenium Micronutrient: A Review

Areas in Nigeria prone to erosion could be associated with inadequate soil selenium levels and this might lead to low availability of the mineral in the foods consumed by animals and humans Get price

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Selenium: Contrary Stuff

On the one hand when larger mining concerns produce selenium they do so alongside the likes of copper (predominantly) lead and nickel—whether refined in-house or sent off to the toll-refiner Get price

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The World's Largest Producers of Niobium

Sep 25 2017The world's Largest Producers of Niobium The mining industry in Nigeria contributes 0 3% of its Gross Domestic Product (GDP) The Process of Extracting Niobium In most cases niobium mining is done using the open-pit method In order to get the concentration of niobium it is ground and crushed Afterwards there's magnetic separation Get price

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Soil Assessment along Toposequences in Rural Northern

Such cases of endemic CDR are particularly common in developing countries and have been reported in rising numbers not only from Nigeria but also from countries such as Bangladesh South Africa or The Gambia [6 7] Previous research on the cause of CDR in these countries was mostly focused on biochemical genetic nutritional and socioeconomic analyses [8–11] Get price

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Selenium in the Environment and Human Health

Selenium in the Environment and Human Health - CRC Press Book Selenium is arguably the naturally occurring trace element of greatest concern worldwide In excessive amounts it can lead to toxicosis and teratogenesis in animals while the impact of selenium deficiency can be even more significant Mining Environmental Science Ergonomics Get price

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Plasma Arsenic and Selenium in Apparently Healthy

Introduction: Although reports are conflicting on arsenic-selenium interactions there is paucity of data on the determinants of plasma selenium (Se) and arsenic (As) in healthy individuals in Ebonyi State South Eastern Nigeria Ebonyi State is richly endowed with mineral deposits which are mined without consideration of their health hazards Get price

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List of Nigeria Local Food Produce and Health Benefits

Listed here are health benefits and food values of all Nigeria fresh food produce sold in local Nigeria markets be it in shops groceries or open markets Most of the products are also found in other Western African countries Get price

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Analysis of Selenium Content in Root and Tuber Plants in

Consequently coals and other organic-rich deposits can be enriched in the element relative to other rock types typically ranging from 1 to 20 mg/kg However values Central Nigeria for selenium content investigation Table 1 shows the results of roots and tubers statistical analysis Get price

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Hydrogeochemistry of the Middle Benue Trough Nigeria

There are many sources of underground water in the Middle Benue Trough which have varying composition and constituents Water samples from saline springs boreholes hand-dug wells and rivers / streams from the Middle Benue Trough are collected and analysed for cations anions and heavy metals using atomic absorption spectrometry (AAS) with aim of determining the concentration of the Get price

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Occurrence and Distribution of Arsenic Antimony and

Arsenic antimony and selenium contamination of groundwater is of great concern due to the potential detrimental effects to human health Objectives This study investigates the occurrence and distribution of arsenic antimony and selenium in the shallow groundwater system of Ibadan metropolis southwestern Nigeria Methods Get price

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(PDF) Nigeria and the Selenium Micronutrient: A Review

Areas in Nigeria prone to erosion could be associated with inadequate soil selenium levels and this might lead to low availability of the mineral in the foods consumed by animals and humans Get price

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(PDF) Evaluation of Selenium in Soils of Kogi State

Evaluation of Selenium in Soils of Kogi State -Nigeria Article (PDF Available) in Journal of Chemical Biological and Physical Sciences 3(2):966-971 April 2013 with 281 Reads How we measure 'reads'Get price

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PERMISSIBLE LIMITS FOR METALS

METALS LIMITS PERMISSIBLE LIMITS FOR METALS METAL Primary Drinking Water Standard (MCL)1 mg/l Secondary Drinking Water Standard2 mg/l Hazardous Waste Screening Criteria (TCLP)3 mg/kg TCLP HazardouGet price

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Nigeria Mining Association Homepage

The Miners Association of Nigeria (MAN) is a National Industry Association whose diverse membership (Over 4000) includes entities and individuals that are directly involved in mineral resources exploration and exploitation in Nigeria MAN membership comprises of exploration quarry and mining companies It also encompasses services and Consultancy firms that relate to mining sectorGet price

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Environmental Science Project Topics And Materials

ENVIRONMENTAL SCIENCE PROJECT TOPICS with already well written Chapters 1-5 content Click and read its project Content Get project topicsGet price

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Selenium in the Soil

Jan 01 2017Selenium (Se) exhibits a "double-edged" behavior in animal and human nutrition It is a micronutrient required in low concentrations by animals and humans but toxic at high concentrations Selenium deficiency has been associated with cancer and other health problems Selenium requirements are commonly met through soils and plants such as wheat rice vegetables and maize Get price

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How to Increase Selenium Mag in Soil?

Jul 03 2007Selenium is ultimately involved with Copper and Cobalt in the metabolisms of cattle sheep and horses (it is equally important in its own right) For example deficiencies of Copper and Zinc are often exacerbated by low Selenium levels It is strongly suspected that Selenium is also essential to the soil and rumen microbes themselves Get price

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Investigation Of Borehole Water Around Slaughter Houses In

Investigation Of Borehole Water Around Slaughter Houses In Uyo Akwa Ibom State Of Nigeria of iron and manganese varied from 0-0 07 mg/l respectively Lead cadmium zinc from copper chromium aluminum and selenium were not detected in any of the samples may lead to the accumulation of deposits in the distribution system Even at a Get price

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deposits of selenium in nigeria

Consequently coals and other organic-rich deposits can be enriched in the element relative to other rock types typically ranging from 1 to 20 mg/kg However values Central Nigeria for selenium content investigation Table 1 shows the results of roots and tubers statistical analysis Get price

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A review on environmental selenium issues

Nov 22 2018Selenium is an essential element since it is necessary for metabolism and is also toxic to the living things if it is consumed above the desirable limit For instance up to 40 g per d of dietary selenium is essential for human health however consumption of a little over 400 g per d could result in adverse physiological problems In the environment selenium occurs in different species Get price

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Oil in Nigeria: a history of spills fines and fights for

Aug 04 2011A major 1970 oil spill in Ogoniland in the south-east of Nigeria led to thousands of gallons being spilt on farmland and rivers ultimately leading to a 26m fine for Shell in Nigerian courts 30 Get price

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