関連する実験動画

Updated: Apr 10, 2026

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores
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Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

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ナイジェリアの Ile-Ife-Ilesha シェイストベルトにおける工業的な金鉱による重金属汚染:汚染源とホットスポットの地理的評価

AbdulGaniyu Isah1, Olukole Adedeji Akinbiyi2, Ayodeji Hansen-Ayoola2

  • 1Department of Geological Technology, Federal Polytechnic Ede, Osun State, PMB 231, Ede, Nigeria. isah.abdulganiyu@federalpolyede.edu.ng.

Environmental monitoring and assessment
|September 3, 2025
PubMed
まとめ

ナイジェリア の 工業 的 な 金鉱山 は,重金属 の 汚染 を 引き起こし,カドミウム,水銀,鉛 の 汚染 は 安全 度 を 超え て い ます. この汚染は,イレ・イフェ・イレシャ地域の50万人の住民に重大な健康リスクをもたらします.

キーワード:
産地での金鉱業環境リスク評価地理空間分析重金属による汚染プレカンブリア時代 シェイスト帯修復戦略

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Microbes and Other Elemental Cycles01:24

Microbes and Other Elemental Cycles

Microbial activity plays a pivotal role in the biogeochemical cycling of iron and manganese, especially at the redox gradients characteristic of stratified aquatic environments. These cycles are driven by microbial transformations between oxidized and reduced forms of the metals, allowing organisms to exploit them for metabolic energy and structural purposes.Iron Cycling Across Redox GradientsIn neutral, oxygen-rich surface waters, iron is predominantly found in its oxidized, insoluble ferric...
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Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
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Acid Mine Drainage01:19

Acid Mine Drainage

Mining activities that disturb sulfide-rich rocks, particularly those containing pyrite (FeS₂), initiate a cascade of geochemical and microbiological processes with serious environmental implications. When exposed to air and water, pyrite undergoes oxidation, releasing sulfate, ultimately forming sulfuric acid and mobilizing heavy metals into surrounding water systems. This phenomenon, known as acid mine drainage (AMD), results in low pH waters laden with toxic elements that threaten...
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