Results 21 to 30 of about 2,744 (183)

Hybrid Mining of Rare-Earth Elements-Rich Mud and Polymetallic Nodules by Air-Lift Pump in Deep Sea around Minamitorishima Island

Journal of MMIJ
REE-rich mud and polymetallic nodules located under the seabed at water depth of 5500–5700 m around Minamitorishima island are highly attractive for exploration and development, given the recent paradigm shift towards renewable energies based on green ...
Yoshiyuki SHIMIZU, Masatoshi SUGIHARA, Yutaro TAKAYA, Koichiro FUJINAGA, Kentaro NAKAMURA, Yasuhiro KATO   +5 more
doaj   +2 more sources

Numerical Simulation on Hybrid Lifting Operation of Polymetallic Nodules and Rare-Earth Elements-Rich Mud by Air-Lift Pump in Deep Sea around Minamitorishima Island

Journal of Marine Science and Engineering
Polymetallic nodules and REE-rich mud under the seabed of 5500–5700 m water depth around Minamitorishima island are promising and attractive for exploration and development.
Yoshiyuki Shimizu, Masatoshi Sugihara, Koichiro Fujinaga, Kentaro Nakamura, Yasuhiro Kato   +4 more
doaj   +2 more sources

The influence of habitat heterogeneity and disturbance on benthic community structure in deep-sea polymetallic nodule environments and management implications for seabed mining

Frontiers in Marine Science
Habitat heterogeneity is known to influence faunal community structure, but its influence on deep-sea benthic communities remains understudied, particularly for polymetallic nodule environments in abyssal waters.
Ailish Ullmann, Ailish Ullmann, Ashley A. Rowden, Ashley A. Rowden, Daniel Leduc, Daniela Zeppilli   +5 more
doaj   +2 more sources

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

Journal of Marine Science and Engineering
In response to the anticipated scarcity of terrestrial land resources in the coming years, the acquisition of marine mineral resources is imperative. This paper mainly summarizes the development of underwater collection and transportation equipment of ...
Xiuzhan Zhang, Yuhang Zuo, Jiakang Wei, Fei Sha, Zhenyu Yuan, X. Liu, Mingshuai Xi, Jingze Xu   +7 more
semanticscholar   +3 more sources

Ethical opportunities in deep-sea collection of polymetallic nodules from the Clarion-Clipperton Zone [PDF]

Integrated Environmental Assessment and Management, 2021
Abstract Infrastructure supporting the transition of human societies from fossil fuels to renewable energy will require hundreds of millions of tons of metals. Polymetallic nodules on the abyssal seabed of the Clarion-Clipperton Zone (CCZ), eastern North Pacific Ocean, could provide them.
Katona, Steven, Paulikas, Daina, Stone, Gregory S.   +2 more
openaire   +2 more sources

Revealing Heavy Metal-Resistant Mechanisms and Bioremediation Potential in a Novel Croceicoccus Species Using Microbial-Induced Carbonate Precipitation

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, Yingwen Zhong, Geyi Fu, Yuehong Wu, Xuewei Xu   +4 more
doaj   +1 more source

Studies on Analysis Conditions of Specific Surface Area of Polymetallic Nodules

Yankuang ceshi, 2021
BACKGROUND Polymetallic nodules are predominant in deep sea sedimentary mineral resources due to the enrichment of many critical metals. Polymetallic nodules are loose and porous, which is the critical material feature that contributes the adsorption of ...
LI Hao-nan, REN Xiang-wen, SONG Zhao-jun, LI Huai-ming, WANG Wen-yu   +4 more
doaj   +1 more source

Dynamic Traction of Deep-Sea Polymetallic Nodule Collector

Journal of Marine Science and Engineering, 2023
The ocean is extremely rich in mineral resources. To cope with the shortage of land mineral resources, countries are focusing on the development of deep-sea mineral mining technology. Owing to its superior traction performance, the deep-sea polymetallic nodule collector (DPNC) has become the preferred solution for ocean mining.
Yuheng Song, Shiyang Yin, Ning Zhang, Fengnian Lu, Zexuan Cheng   +4 more
openaire   +2 more sources

Assessment of natural radioactivity levels in polymetallic nodules and potential health risks from deep-sea mining.

Journal of Hazardous Materials
The activity concentration of U-238, Ra-226, Pb-214, Bi-214, and Pb-210 was measured in samples of polymetallic nodules stored in the repository of the Interoceanmetal Joint Organization (IOM) based in Szczecin, Poland.
A. Dołhańczuk-Śródka, Andrzej Kłos, Daniel Janecki, Z. Ziembik, A. Skowronek, Agnieszka Strzelecka, Kamila Mianowicz, Tomasz Abramowski   +7 more
semanticscholar   +4 more sources

Simulation Experiment of Environmental Impact of Deep-Sea Mining: Response of Phytoplankton Community to Polymetallic Nodules and Sediment Enrichment in Surface Water [PDF]

Toxics, 2022
Lei Cai, Lei Wang, Jinli Qiu
exaly   +2 more sources