Federal Government of Nigeria - All Documents
1 Okpara mine Enugu, 238m. West Coal 6 Adits on site, pillar & stall and longwall. No crushing on site, sent directly to washery Waste piles, Rusting plant and structures, water pollution, job / salary redundancy. 2 Enoyigba mine Ebonyi, North Lead-zinc Open pit, hand crushing and sorting on site.
Groundwater | Dissolved mineral sources and significance
Dissolved Mineral Sources and Significance. The chemical character of groundwater is influenced by the minerals and gases reacting with the water in its relatively slow passage through the rocks and sediments of the Earth's crust. Many variables cause extensive variation in the quality of groundwater, even in local areas.
Assessment of hydrogeochemical characteristics of ...
Hydrogeochemical assessments were carried out in the vicinity of Okpara coal and Obwetti fireclay mines, Enugu, Nigeria to investigate the hydrogeochemical characteristics and constituents of shallow groundwater. A total of 12 representative shallow groundwater samples were collected and analyzed for major cations and anions as well as trace metals like Fe and Mn. …
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sources of mangenese potassiumandcalcium in okpara coal mine and its environs. Nigeria''s coal deposits identified. coal extraction in nigeria:Coal mining in Enugu district Nigeria In the south eastern part of the country exploration of the mineral began proper in present day Enugu State in 1909 with production at the mines in Onyeama Ogbete ...
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Chemical Characteristics of Discharges from Two Derelict ...
In this study, the chemical composition of water and soils contiguous to two abandoned coal mines in southeastern Nigeria, was assessed to evaluate the impact of water flow from the mines ponds on the geoenvironment and potential for acid mine drainage (AMD). Parameters including the pH, anions and cations, and the heavy metals were measured.
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Sargent which is an alloying element in steel production, is produced (1954) reported that during 1926–31, the Soviet Union by an electrolytic process. Substitution of selenium dioxide produced between 2.3 and 2.7 metric tons per year of sele- (SeO2 (g) ) for sulfur dioxide (SO2 (g) …
Mine Drainage Bibliography, 1910-1976
The total outflow of 3 mines that could not be entered was found to be acid. There is a detailed discussion of the findings on samples from these sources. OR 30-20 MD32-5 COAL MINE DRAINAGE DISPOSAL Stevenson, W. L., "Proc. Third Int. Conf. Bituminous Coal, Nov. 16 to 21, 1931," Vol. II, Pittsburgh: Carnegie Inst. Technol. (1932). pp 912-923.
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244. LATIN LANGUAGE. 1. Earliest Records of its Area.—Latin was the language spoken in Rome and in the plain of Latium in the 6th or 7th century B.C. —the earliest period from which we have any contemporary record of its existence. But it is as yet impossible to determine either, on the one hand, whether the archaic inscription of Praeneste (see below), which is assigned with great ...
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Awalla 2027 Table 1. Hydrogeochemical data of Enugu Coal mine groundwater (Ezeigbo and Ezeanyim, 1993). Geochemical parameter Onyeama mine Okpara mine . - May 15, 2014 by The Nation . May 15, 2014 publication of The Nation Newspaper . South Africa's coalfields — A 2014 perspective . Its coal assets include eight managed coal mines, ...
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Tracing sources of coal combustion using stable sulfur isotope ratios in epilithic mosses and coals from China. Journal of Environmental Monitoring, 13(8): 2243-2249. Xiao, H.-Y., Wu, L.-H., Zhu, R.-G., Wang, Y.-L., Liu, C.-Q., 2011b. Nitrogen isotope variations in camphor (Cinnamomum Camphora) leaves of different ages in upper and lower ...
A REVIEW OF TECHNICAL POTENTIAL FOR COAL …
order were worked and exhausted between 1917 and 1967. Currently, only Okpara mine is being worked. Okabba mine in Kogi state is being opened which accounts for about 90% of the present coal production in Nigeria (Nigerian Coal Corporation Manual.) The Nigerian coal industry has 4 (four) existing mines at Okpara and Onyeama.
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sources of mangenese potassiumandcalcium in okpara coal mine and its environs; sources of mangenese potassiumandcalcium in okpara coal mine and its environs. ... Therese Nganje ... Okpara coal mine, ... and its environs. J. Sci. Ind. Get price. Applied Sedimentology (Second Edition) | NAIYAR IMAM ... Applied Sedimentology (Second Edition) 543 ...
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Wetland treatment at extremes of pH: A review. W.M. Mayes a,, L.C. Batty b, P.L. Younger a, A.P. Jarvis a, M. Kiv c, C. Vohla c, U. Mander c a Hydrogeochemical Engineering Research and Outreach group, Sir Joseph Swan Institute for Energy Research, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK b School of Geography, Earth & Environnmental Sciences, University of Birmingham, Edgbaston ...
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sources of mangenese potassiumandcalcium in okpara coal mine and its environs. An appraisal of the water related contaminants as they affect . Groundwater, coal mine, Ajali other cations; calcium, sodium and potassium are less than 14 Geochemical parameter Onyeama mine Okpara mine Iva .
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(PDF) HEAVY METALS AND NUTRIENT STATUS OF SURFACE …
The values were lower than the WHO requirement of 0.006 mg/L for domestic water consumption. The results for Hg in the present study is higher than …
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(PDF) Groundwater chemistry and quality of Nigeria: A ...
The water + 2+ 2+ 2- - groundwater temperature is between 27.35 and 29.43°C, type in this aquifer is Na -Ca -Mg -SO4 -Cl (Table 5). while the mean pH is less than 7.00. The average value of total dissolved solids (TDS) is less than 150 mg/l and hardness, less than 75 mg/l of CaCO3.
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Coal mining: What are the largest coal mines in the world?
Saraji coal mine, Australia. 1. North Antelope Rochelle, US – 1.7 billion tonnes. The largest coal mine in the world by reserves is the North Antelope Rochelle coal mine in the Powder River Basin of Wyoming, US. The mine was estimated to contain more than 1.7 billion tonnes of recoverable coal as of December 2018.
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