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Comparative Life Cycle Assessment of the Manufacturing of Conventional and Innovative Aerators: A Case Study in China

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  • Haochen Hou

    (Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
    College of Marine Technology and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China)

  • Haiheng Wang

    (Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
    College of Marine Technology and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China)

  • Anqi Ren

    (Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
    College of Marine Technology and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China)

  • Yun Zhang

    (Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, China)

  • Ying Liu

    (Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
    College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China)

Abstract

China aims to achieve a 50% rate of mechanization for aquaculture by 2025. Aerators are crucial mechanical equipment in aquaculture for increasing yield, but their manufacturing has an environmental impact. Improving the yield and controlling the environmental impacts of aerators in China is an important issue have to be considered, as is comparing the environmental impact of manufacturing innovative and conventional aerators. Herein, life cycle assessment (LCA) as a quantitative analysis method was used, and six models of three widely used aerators (impeller, paddle wheel, and wave) were selected as an example to compare the environmental impacts of conventional and innovative aerators from large-scale aerator manufacturing enterprises in Taizhou, China. The results showed that the conventional paddle wheel aerator (SC-1.5) had the largest environmental impact, while the innovative paddle wheel aerator (GSC-1.5) had the lowest environmental impact, reduced by 30%. In addition, the environmental impact of the innovative impeller aerator (SYL-1.5) and wave aerator (GYL-1.5) was less than that of the conventional impeller aerator (YL-1.5) wave aerator (SW-1.5), but only by 0.21% and 0.02%, respectively. Human toxic potential (HTP) made the largest contribution, and the manufacturing of copper wire was critical; the environmental impact was from 96.50% to 98.21% for all material inputs. The contributions of iron and stainless steel were 1.05–1.28% and 0.74–1.04%, respectively. Therefore, conductive materials with excellent environmental performance, such as carbon nanomaterials and nano copper wire, should replace copper wire in aerator manufacturing. The results expand aquaculture life cycle knowledge and could reduce the environmental impacts of aerator manufacturing in China.

Suggested Citation

  • Haochen Hou & Haiheng Wang & Anqi Ren & Yun Zhang & Ying Liu, 2022. "Comparative Life Cycle Assessment of the Manufacturing of Conventional and Innovative Aerators: A Case Study in China," Sustainability, MDPI, vol. 14(22), pages 1-11, November.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:22:p:15115-:d:973195
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    References listed on IDEAS

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    1. Edoardo Turolla & Giuseppe Castaldelli & Elisa Anna Fano & Elena Tamburini, 2020. "Life Cycle Assessment (LCA) Proves that Manila Clam Farming ( Ruditapes Philippinarum ) is a Fully Sustainable Aquaculture Practice and a Carbon Sink," Sustainability, MDPI, vol. 12(13), pages 1-12, June.
    2. Evangelos Kallitsis & Anna Korre & Dimitris Mousamas & Pavlos Avramidis, 2020. "Environmental Life Cycle Assessment of Mediterranean Sea Bass and Sea Bream," Sustainability, MDPI, vol. 12(22), pages 1-11, November.
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    Cited by:

    1. Asma Mecheter & Faris Tarlochan, 2023. "Fused Filament Fabrication Three-Dimensional Printing: Assessing the Influence of Geometric Complexity and Process Parameters on Energy and the Environment," Sustainability, MDPI, vol. 15(16), pages 1-22, August.

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