A review on plumes generation and evolution mechanism during deep-sea polymetallic nodules mining

Sha, Fei; Xi, Mingshuai; Wen, Zhijie; Chen, Xuguang; Zuo, Yuhang; Xu, Jingze; Zhang, Minglong; Niu, Hongying

doi:10.1016/j.oceaneng.2024.117188

Cited by 8 publications

(1 citation statement)

References 117 publications

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“…How to reduce the impact of each underwater device on the environment during mining is also a key issue in equipment research. As mining continues, the dispersion of fine sediment disturbed by mining may change over time, and plume monitoring and vulnerable species mapping must be rationed to adjust mining operations and minimize impacts outside the mine site [18,19]. DSMV is the core component of most deep-sea mining [20].…”

Section: Current Development Of Deep-sea Mining Systemsmentioning

confidence: 99%

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

Zhang,

Zuo,

Wei

et al. 2024

JMSE

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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 polymetallic nodules in deep-sea mining. Firstly, the collection equipment is reviewed. The deep-sea mining vehicle (DSMV), as the key equipment of the collection equipment, mainly includes the collecting device and the walking device. The micro and macro properties of sediments have a great influence on the collection efficiency of mining vehicles. For the collecting device, the optimization of the jet head structure and the solid–liquid two-phase flow transport of the hose are discussed. The structure of the walking device restricts mining efficiency. The optimization of the geometric structure is studied, and the geometric passability and lightweight design of the walking device are discussed. Secondly, the core of transportation equipment is the lifting device composed of a riser and lifting pump. In order to explore the key factors affecting mineral transport, the lifting device is summarized, and the design optimization of the lifting pump and the factors affecting the stability of the riser are discussed. Then, the relationship between each device is discussed, and the overall coupling of the device is summarized. Finally, the existing problems and future research focus are summarized.

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Section: Current Development Of Deep-sea Mining Systemsmentioning

confidence: 99%

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

Zhang,

Zuo,

Wei

et al. 2024

JMSE

Self Cite

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Unfoldings of Environmental Racism: Are They Reaching Rhodolith Beds and Related Sociobiodiversities?

Horta,

Koerich,

Sissini

et al. 2024

Aquatic Conservation

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Environmental racism may be among the explanations for why we are facing the worst socioenvironmental crisis in the history of humanity, led by a state of climate emergency that could result in an ecocidal genocide of planetary dimensions. Unfoldings of environmental racism even reach towards nature when it is considered subject of rights. Among the marine ecosystems less considered in these discussions are rhodolith beds—reef habitats of red coralline algae, also called maerl beds. When dealing with the feasibility of oil exploration in the Amazon mouth region, an area dominated by extensive rhodolith beds, the Brazilian Association of Petroleum Geologists broadcast live a geologist quoted as saying (transcript follows) ‘… what there is (at the mouth of the Amazon) are coralline algae called rhodoliths, which are common, anywhere in Brazil, and are things, errrrr (with hand gestures and facial expression with negative or pejorative sense), ugly like that, they're not nice at all, (…) and even the rhodolith reefs are dead reefs, dead’. As a result, now, the region is facing the real possibility of extensive oil exploitation. This opinion of a limited aesthetical perspective of which nature is important demands urgent public recognition. Policies that foster rhodolith bed conservation needs, explaining their wealth of valuable contributions to society, must be introduced in formal education, dialoguing with children, young people and adults. Multilateral United Nation forums, during the Ocean Decade, can provide ways to speed up this process, combating different forms of environmental racism and speciesism, buying some time and creating opportunities to establish rhodolith bed conservation as a natural world heritage.

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Developing a dynamic energy budget model to project potential effects of deep-sea mining plumes on the Atlantic deep-sea mussel, Bathymodiolus azoricus

Martins,

Guerra,

Vale

et al. 2024

Ecological Informatics

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A review on plumes generation and evolution mechanism during deep-sea polymetallic nodules mining

Cited by 8 publications

References 117 publications

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

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

Unfoldings of Environmental Racism: Are They Reaching Rhodolith Beds and Related Sociobiodiversities?

Developing a dynamic energy budget model to project potential effects of deep-sea mining plumes on the Atlantic deep-sea mussel, Bathymodiolus azoricus

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