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Comparative Evaluation of Deep-Sea Polymetallic Nodule Collection Technologies Based on GERIS Criteria
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Xianhao REN1, Lihong LIU2, 3, Dingbang WEI2, 3, Jianxin XIA2, 3
Mining and Metallurgical Engineering | 2025, 45(6) : 26 - 32
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Mining and Metallurgical Engineering | 2025, 45(6): 26-32
• MINING •
Comparative Evaluation of Deep-Sea Polymetallic Nodule Collection Technologies Based on GERIS Criteria
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Xianhao REN1, Lihong LIU2, 3, Dingbang WEI2, 3, Jianxin XIA2, 3
Affiliations
  • 1.Science & Technology College, University of Lorraine, Nancy 54500, France
  • 2.School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China
  • 3.Key Laboratory of Polar Geology and Marine Mineral Resources (China University of Geosciences, Beijing), Ministry of Education, Beijing 100083, China
doi: 10.3969/j.issn.0253-6099.2025.06.005
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In order to select an appropriate deep-sea polymetallic nodule collection method, a technical evaluation system was established based on five criteria, including green, economy, reliability, intelligence and safety (GERIS). Then, as for three kinds of collection methods, including collection with a rotary raking system, or a hydraulic collection system, and a robotic arm collection system, the weights of 22 engineering indicators were determined by adopting the Analytic Hierarchy Process (AHP), and also a quantitative comparison was made among those three typical methods. It is found that collection by a rotary raking system presents better performance in terms of collection efficiency, operation stability and safety, with a comprehensive score of 80.1, while the hydraulic collection system is characterized by simple structure and high efficiency, but is not environment-friendly and intelligent, with a score of 76.3. The robotic arm collection system shows some sort of potential in intelligent development, but is limited by its low efficiency and high mechanical complexity, with the lowest score of 70.2. Overall, the collection by a rotary raking system is more feasible in current engineering applications, and the hydraulic collection system may be banned to use due to strict environmental protection regulations, while the robotic arm collection system still has developmental potential for precise collection in high-value areas in the future.

deep-sea mineral resource  /  deep-sea mining  /  polymetallic nodule  /  collection method  /  analytic hierarchy process  /  rotary raking system  /  hydraulic collection system  /  robotic arm collection system
任显豪, 刘莉红, 魏定邦, 夏建新. 基于GERIS准则的深海多金属结核采集方式比较评估研究. 矿冶工程杂志, 2025 , 45 (6) : 26 -32 . DOI: 10.3969/j.issn.0253-6099.2025.06.005
Xianhao REN, Lihong LIU, Dingbang WEI, Jianxin XIA. Comparative Evaluation of Deep-Sea Polymetallic Nodule Collection Technologies Based on GERIS Criteria[J]. Mining and Metallurgical Engineering, 2025 , 45 (6) : 26 -32 . DOI: 10.3969/j.issn.0253-6099.2025.06.005
Appendix
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Year 2025 volume 45 Issue 6
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doi: 10.3969/j.issn.0253-6099.2025.06.005
  • Receive Date：2025-06-30
  • Online Date：2026-10-08
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  • Received：2025-06-30
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Affiliations
    1.Science & Technology College, University of Lorraine, Nancy 54500, France
    2.School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China
    3.Key Laboratory of Polar Geology and Marine Mineral Resources (China University of Geosciences, Beijing), Ministry of Education, Beijing 100083, 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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