Results 131 to 140 of about 391 (168)

Fines produced from degradation of polymetallic nodules: implications for deep-sea mining

2023
Polymetallic nodules in abyssal plains have long attracted attention as potential resources for some critical metals. Thier exploitation may cause a serious disturbance to the marine environment, and proper environmental impact assessments must be made beforehand.
Chanmin Yoo, Mun Gi Kim, Kiseong Hyeong
openaire   +1 more source

A comparison of microbial communities in deep-sea polymetallic nodules and the surrounding sediments in the Pacific Ocean

Deep Sea Research Part I: Oceanographic Research Papers, 2013
Abstract Deep-sea polymetallic nodules, rich in metals such as Fe, Mn, and Ni, are potential resources for future exploitation. Early culturing and microscopy studies suggest that polymetallic nodules are at least partially biogenic. To understand the microbial communities in this environment, we compared microbial community composition and diversity
Yue-Hong Wu, Li Liao, Chun-Sheng Wang, Wei-Lin Ma, Fan-Xu Meng, Min Wu, Xue-Wei Xu   +6 more
openaire   +1 more source

A Framework for Business Interruption Risk Modeling in Polymetallic Nodule Deep Sea Mining

Deep-sea polymetallic nodule (PMN) mining is emerging as a potential source of critical minerals for global energy and technology supply chains. Yet it operates under extreme environmental uncertainty and limited operational experience, exposing projects to substantial business interruption (BI) risk.
Mobasshira Zaman, Vladimir Jokovic, ANGELINA ANANI, Rong Pan, Petar Jevtic   +4 more
openaire   +1 more source

CRITICAL ELEMENTS IN SEQUENTIAL LEACHED PHASES FROM DEEP-SEA POLYMETALLIC NODULES AND SEDIMENTS

SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings
The deep-sea metalliferous sediments and Fe-Mn polymetallic nodules formed in modern environment at the deep-sea ocean floor (> 4000 m depth) were evaluated as promising new raw materials, especially for critical elements as Li, Co, Cu, Mn, Ni, and rare earth elements (REE).
Atanas Hikov, Zlatka Milakovska, Valentina Lyubomirova Lyubomirova, Nadezhda Lihareva   +3 more
openaire   +1 more source

Optimization of Gas–Solid Co-Reduction Conditions for Deep-Sea Polymetallic Nodules

JOM, 2023
Fan Li, Siyu Xu, Jiayong Qiu, Zhuo Chen, Weitong Du, Dianchun Ju, Keng Xie   +6 more
openaire   +1 more source

Vanadium Redox Couples as Regenerable Reductants for Deep-Sea Polymetallic Nodule Leaching

Deep-sea polymetallic nodules (DSNs) are a promising resource of critical metals including nickel, cobalt, copper, and manganese. Existing reductive leaching processes commonly employ Fe2+ or SO₂, both of which introduce process limitations associated with reagent supply, downstream separations, and waste management.
Curtis Sirkoch, Pengbo Chu, Jeffrey P. Fitts, Alan C. West   +3 more
openaire   +1 more source

Effects of Migration and Diffusion of Suspended Sediments on the Seabed Environment During Exploitation of Deep-Sea Polymetallic Nodules

Water (Switzerland), 2022
Bowen Li, Fengyou Chu, Xianming Zhu
exaly  

Experimental Investigation and Optimization of Polymetallic Nodule Mining by Mechanical Pick-Up Device on Deep-Sea Using RSM

Marine Georesources and Geotechnology, 2023
Ananda Ramadass Gidugu, Sudarvelazhagan Krishnan, M Pradeep Kumar   +2 more
exaly  

ECONOMIC ANALYSIS OF POLYMETALLIC NODULES IN DEEP SEA FLOOR

SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2013
openaire   +1 more source

Numerical Investigation of Recommended Operating Parameters Considering Movement of Polymetallic Nodule Particles During Hydraulic Lifting of Deep-Sea Mining Pipeline

Sustainability, 2023
Yu Dai, Xiang Zhu, Yanyang Zhang
exaly