Results 21 to 30 of about 3,360 (218)
Size reduction of CCZ polymetallic nodules under repeated impact fragmentation
Results in Engineering, 2020 Polymetallic nodules provide an alternative source of valuable metals. Nodules from the seabed of the Clarion Clipperton Zone (CCZ), a prospective mining area, are typically abundant at depths of around 5 km. Mining these nodules comprises excavation or
J.M. van Wijk, E. de Hoog
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Journal of Marine Science and Engineering, 2022 The impeller blades will continually strike the slurry mixture inside the pump, causing deterioration and a change in particle size. In this study, the degradation of mineral particles under various cycle times, rotational speeds, and flow rates is ...
Yan Li, Ziyuan Li, Kesen Liang
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The seabed - an important mineral resource of Slovakia in the future [PDF]
Acta Montanistica Slovaca, 2015 In 1987, Slovakia bought part of the ocean bottom with the occurrence of mineral resources future - polymetallic nodules. The polymetallic nodule is a geological term for naming natural features consisting of more than 40 metals and other chemical ...
Peter Blišťan +3 more
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Journal of Marine Science and Engineering, 2023 Polymetallic nodules and polymetallic sulfides are currently the major mineral resources found on the seabed. The motivation behind deep-sea mining arises from the pursuit of valuable metals, driven by both economic and geopolitical considerations ...
Xuya Lv +4 more
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Spatial Variability of Abyssal Nitrifying Microbes in the North-Eastern Clarion-Clipperton Zone
Frontiers in Marine Science, 2021 Abyssal microbes drive biogeochemical cycles, regulate fluxes of energy and contribute to organic carbon production and remineralization. Therefore, characterizing the spatial variability of benthic microbes is important for understanding their roles in ...
Anita L. Hollingsworth +3 more
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Frontiers in Microbiology, 2017 Marine bacteria regulate fluxes of matter and energy essential for pelagic and benthic organisms and may also be involved in the formation and maintenance of commercially valuable abyssal polymetallic nodules.
Markus V. Lindh +7 more
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Development of an analytical model for the extraction of manganese from marine nodules [PDF]
, 2019 Multivariable analytical models provide a descriptive (albeit approximate) mathematical relationship between a set of independent variables and one or more dependent variables.
Castillo Segura, Jonathan Alejandro +5 more
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Has phytodetritus processing by an abyssal soft-sediment community recovered 26 years after an experimental disturbance? [PDF]
, 2018 The potential harvest of polymetallic nodules will heavily impact the abyssal, soft sediment ecosystem by removing sediment, hard substrate, and associated fauna inside mined areas. It is therefore important to know whether the ecosystem can recover from
Mevenkamp, L. +4 more
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Potential Short-Term Effects of Mine Tailings on Phytoplankton Assemblages in the Open Ocean
Journal of Marine Science and Engineering, 2022 The disposal of mine tailings into the marine environment is considered an essential option to secure the economic efficiency of deep-sea mining, but it might adversely affects the ecosystem.
Dong Han Choi +8 more
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The contribution of microbial communities in polymetallic nodules to the diversity of the deep-sea microbiome of the Peru Basin (4130–4198 m depth) [PDF]
Biogeosciences, 2020 Industrial-scale mining of deep-sea polymetallic nodules will remove nodules in large areas of the sea floor. The regrowth of the nodules by metal precipitation is estimated to take millions of years. Thus, for future mining impact studies, it is crucial
M. Molari +8 more
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