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Experimental Study on Sediment Disturbance During Collection of Deep-Sea Polymetallic Nodules
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Dongkuan ZHANG, Meilin LIU, Jianxin XIA
Mining and Metallurgical Engineering | 2023, 43(3) : 20 - 23
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Mining and Metallurgical Engineering | 2023, 43(3): 20-23
• MINING •
Experimental Study on Sediment Disturbance During Collection of Deep-Sea Polymetallic Nodules
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Dongkuan ZHANG, Meilin LIU, Jianxin XIA
Affiliations
  • Department of Environment, Minzu University of China, Beijing 100081, China
Published: 2023-06-01 doi: 10.3969/j.issn.0253-6099.2023.03.005
Outline
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In order to explore disturbance of seabed sediment during mining of polymetallic nodules, a pool experiment was carried out to scour sediment by a waterjet from polymetallic nodules collector. Variation of gully depth, and migration and diffusion regulation of sediments were investigated in the experiment by setting the waterjet at different speed, with nozzle at different height from sediment, and collector at different traveling speed. The results show that the collecting process of polymetallic nodules brings scour to both particles and blocks of sediment, leading to uneven surface of the gully. Then, disturbed sediment migrates and diffuses through upper plume flow and bottom gravity flow.

deep-sea mining  /  deep-sea polymetallic nodules  /  nodules collector  /  sediment disturbance  /  collecting machine  /  plume flow
Dongkuan ZHANG, Meilin LIU, Jianxin XIA. Experimental Study on Sediment Disturbance During Collection of Deep-Sea Polymetallic Nodules[J]. Mining and Metallurgical Engineering, 2023 , 43 (3) : 20 -23 . DOI: 10.3969/j.issn.0253-6099.2023.03.005
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Year 2023 volume 43 Issue 3
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.03.005
  • Receive Date：2022-12-22
  • Online Date：2026-03-05
  • Published：2023-06-01
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  • Received：2022-12-22
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Affiliations
    Department of Environment, Minzu University of China, Beijing 100081, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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