Estimation of Annual Effective Dose Due to Ingestion of ...
In Jos, Nigeria, attempts have been made towards assessing the radio-logical consequence of mining in several localities [2]-[13]. A summary of the type of samples and results of each of these studies is presented in Table 1. Most of the studies on radiological effects of tin mining in Jos, Nigeria have only considered the human health risks.
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Assessment of Radiological Hazard Indices from Exposures ...
Radioactivity in the environment from sources of natural and human activities resulting in planned, emergency and existing exposure to human population, environment and other biota has led to growing apprehensions in Nigeria and the world. The existing exposure situations mainly from natural radionuclides, present in the earth crust from creation emits background ionizing radiation leading to ...
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Uranium in Niger - World Nuclear Association
Uranium in Niger. (Updated April 2021) Niger has two significant uranium mines providing about 5% of world mining output from Africa's highest-grade uranium ores. Niger's first commercial uranium mine began operating in 1971. There is strong government support for expanding uranium mining. Uranium was discovered at Azelik in Niger in 1957 by ...
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Nigeria - Mining Africa
Nigeria started major production of coal, tin and columbite by the 1940s. In 1956 when oil was discovered, the mineral industries suffered when the focus shifted to mining oil. In the 1960s the Civil War led to expat mining experts leaving the country and mines being abandoned. Mining regulations drastically changed and productivity declined.
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Radioactivity Measurements of the Jos Tin Mine Tailing in ...
The activity concentrations of 226 Ra and 232 Th in Jos Tin mine tailings and its environment were measured using Hyper-pure Germanium detector (HPGe). Preset counting time of 30,000s was used for each sample to avoid statistical errors. Results showed the activities varied from one site to another.
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Heavy metals and rare earth elements distribution in the ...
The Keana-Awe axis of the Middle Benue Trough is the largest lead-zinc, baryte and copper mining district in Nigeria (Sallau et al., 2016). Evidences have shown that rare earth elements could be significantly mobilised during weathering, alteration and diagenesis processes associated with rocks ( Wood, 1990 ).
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Ecological and Human Health Risks of Toxic Metals in ...
Cr, Ni,Cd, Pb, Hg, As) in mine tailings and soil from a lead mining area in Nasarawa-Eggon, Nasarawa State, Nigeria. The concentration of the selected metals were analysed in triplicate using AAS and the results for heavy metals in tailings samples ranged from 901.6 – …
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Assessment of Heavy Metal Pollution in a Gold Mining Site ...
Franco Hernández MO, Vásquez Murrieta MS, Patiño-Siciliano A, Dendooven L (2010) Heavy metals concentration in plants growing on mine tailings in Central Mexico. Bioresource Technol 101(11): 3864- 3869. Eisler R (2004) Arsenic hazards to humans, plants, and animals from gold mining, Rev Environ Contam T 180: 133-165.
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Thor Explorations: Cementing its position in Nigeria
This will cement its position in the country by building Nigeria's first large-scale gold mine, CEO and president SEGUN LAWSON tells CHANTELLE KOTZE. Thor Explorations completed an independent DFS on Segilola in February 2019 which validated the findings of the preliminary feasibility study and confirmed the project's economic robustness ...
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Tailings solutions for all mine conditions
Full range of solutions: Sand dam, thickened, paste backfill, filtered and co-mingled EcoTails®. Every mine site has unique considerations, whether it be high fresh water costs, permitting, stability issues or seismic activity. We work with you to determine the tailings solution that's right for your unique mining conditions and local ...
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Mining Operations – PW Nigeria Limited
PW Nigeria has a reputation for professionalism and reliability in all sectors of our business and in addition to our core strengths of mining, civil engineering and construction, we also provide extensive management and support services, logistics, and a highly qualified management team.
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Assessment of Heavy Metal Pollution in a Gold Mining Site ...
Department of Biology, Akure, Nigeria *Corresponding author: Ologundudu FA, Department of Biology, Akure, Nigeria Submission: December 05, 2018; Published: February 01, 2019 Introduction Amongst many anthropogenic activities, mining has been identified with the potential of impacting negatively on the quality of the environment [1,2].
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Comparative analysis of NORM concentration in mineral ...
Mining of tin and other related activities have been active and thus leading to economic growth in the Jos area of Nigeria for more than a century. However, mining of minerals has been confirmed to enhance the concentrations of heavy metals and natural radioisotopes in the soil, air and water bodies in the environment. In an attempt to evaluate the radiological burdens resulting from tin ...
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McDermott awarded contract for refinery project in Nigeria ...
McDermott International Ltd. (Houston) announced it has been awarded a large engineering and procurement contract from Azikel Petroleum Ltd. for the modular 12,000 barrel per day (bbl/d) Hydro-Skimming Refinery project. The facility will be located in Yenagoa, Bayelsa State within the Federal Republic of Nigeria. The scope of the award includes the detailed engineering and design of …
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Mining industry of Nigeria - Wikipedia
The mining of minerals in Nigeria accounts for only 0.3% of its gross domestic product, due to the influence of its vast oil resources. The domestic mining industry is underdeveloped, leading to Nigeria having to import minerals that it could produce domestically, such as salt or iron ore.Rights to ownership of mineral resources is held by the Federal government of Nigeria, which grants titles ...
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OSUN GOLD FIELDS: Suffering In The Midst Of Abundant ...
Nigeria has, in the first 152 days of this year, flared about 85.4 billion standard cubic feet of natural gas, translating to monetary loss of about $510 million (N209 billion), a figure ...
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Tailings & Mine Waste Management Solutions | Weir
We are focused on the continuous development of technology to utilise and manufacture tailings as products, as well as the design of pipeline transport systems to create sustainable mine waste solutions. Tailings is a critical consideration for the design of slurry transportation systems. Mine operators are continually looking for solutions for ...
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Thor to build Nigeria's first large-scale gold mine ...
Canada-listed junior miner Thor Explorations (TSX-V:THX) has decided to move forward with its Segilola project in Nigeria, poised to become the country's first large-scale gold mine, as it …
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Characterisation of Tailings from Itakpe Iron Ore Mine ...
of Itakpe iron ore mine tailings are 71% of SiO2 and 2.62 % Al 2O 3 as shown in Table 1. The Fe (total) of 15% indicates that a sizeable amount of iron could still be further extracted as the beneficiation process improves.This shows that the recovery is not total. ore tailings is . The 2 SGG Volume 4
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Secondary Recovery of Columbite from Tailing Dump in ...
Millions of tons of tailing dump at Rayfield mine in Jos in North Central Plateau state of Nigeria have been found to contain large quantity of columbite. Initial attempts to recover columbite concentrates by local miners and mineral speculators from the columbite rich tailing dump failed due to the ineffective processing route employed. Using cone and quartering sampling method, 0.5 kg of the ...
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Microbiome of highly polluted coal mine drainage from ...
Nigeria has more than 1200 million tons of coal reserves, most deposits in Enugu State, and had previously depended on coal for energy until the discovery and boom of petroleum.
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Evaluation of the iron ore tailings from Itakpe in Nigeria ...
State, Nigeria, and was designed to supply 2.15 million tones of 63 % to 64 % grade concentrate of iron (Fe) per year, to Ajaokuta Steel Company, Nigeria. The iron ore is ferruginous quartzite deposit of geological reserve amounting to 200 million tones and the tailings are the by-product from the manufacture of iron ore.
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Environmental Issues and the Prospects of Mining in Nigeria
Prospects of Mining in Nigeria *Ahmed F. Ali1, Amina S. Abdullahi1, Aminu S. Zangina1 1Department of Environmental Management, Bayero University, Kano State, Nigeria Email: [email protected] Abstract Mining is referred to as the extraction of minerals and other geological materials of economic value from deposits of the earth.
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Health and ecological hazards due to natural radioactivity ...
Nasarawa State is located in north central Nigeria and it is known as Nigeria's home of solid minerals. It is endowed with barite, copper, zinc, tantalite and granite. Continuous releases of mining waste and tailings into the biosphere may result in a build-up of radionuclides in air, water and soil …
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Tailings solutions: How to filter down the options
90-95%. Filtration and centrifuge options. There are four main filtration options for dewatering tailings after thickening but prior to disposal: vacuum filters, centrifuges, belt presses, and filter presses. For every solution, it is recommended the filter feed slurry be thickened prior to filtration as this can substantially reduce capital ...
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Environmental Impacts of Mineral Exploration in Nigeria ...
Nigeria and their Phytoremediation Strategies for Sustainable Ecosystem . Odoh Chuks Kenneth. α, Akpi Uchenna Kalu. σ. Anyah Francis. ρ. Abstract-19 Mineral exploration and processing have caused varying degree of environmental damage in Nigeria. These include alteration of …
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Soviet Uranium Mines Still Have Deadly Impact in ...
Credit: Ryskeldi Satke. Advertisement. MAILUU-SUU, Kyrgyzstan — The remote town of Mailuu Suu in South Kyrgyzstan is known for a Soviet legacy …
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Fred Pauw - Executive Director - Commercial Divng Services ...
Fred Pauw | Somerset West, Western Cape, South Africa | Executive Director at Commercial Divng Services | Dredging Services. | 425 connections | See Fred's complete profile on Linkedin and connect
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Segilola Gold Project, Osun, Lagos, Nigeria
Location of the Industry – Enugu Ownership Structure – Govt Owned The Nigerian Coal Corporation was established in 1950 and it is owned by the FGN. The headquarter is located at No 25 Okpara Avenue, Enugu. SECTOR DATA Coal exploration in Nigeria started as far back as 1916. Available data show that coal […]
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Sibanye Expands Tailings Retreatment Exposure Through 20% ...
JSE- and NYSE-listed Sibanye-Stillwater has entered into investment agreements to acquire a 19.99% shareholding in ASX-listed New Century Resources, which
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Life at Shell | Shell Nigeria
Life at Shell. Meet some of the people behind our projects and business, from wells engineers to IT specialists and the many roles in between, discover what working for Shell is really like.
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Tin mining and processing in Nigeria: cause for concern ...
2.. Materials and methodsAt the Jos Plateau, Nigeria (), portable survey meters (a 2.5-cm × 2.5-cm NaI(Tl) detector and an Atomtex dosimeter) were used for in-situ radiation measurements in the field.Three sites at the tin mine were surveyed to identify study locations. A tailing dump ground showed highest values and thus was chosen to represent the site most at risk (i.e., worst case).
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GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL ...
22 Conditions that may focus, or disperse, heat flow are hydrologic and topographic influences, as well as anomalous thermal conductivity. In geoenvironmental applications, oxidation of sulfide bodies in …
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