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<p>The sustainable management of chicken manure (CM) is critical for China’s cultivation industry to achieve its green development goals. However, the diversity of valorization technologies and the lack of comprehensive sustainability assessments hinder the selection of optimal pathways. This study employs an integrated life cycle assessment (LCA) and life cycle costing (LCC) approach to evaluate the environmental and economic performance of twelve CM valorization technologies in China. Concurrently, the scenario analysis of the baseline, technical optimization, optimal layout and integrated optimization scenarios of CM management was conducted. The results indicate that, under the system boundaries and assumptions of this study, black soldier fly-based bioconversion (BC-BSF) showed the most favorable combined environmental and economic performance among the assessed technologies, reducing carbon emissions by 583&#xa0;kg CO<sub>2</sub> eq/t and generating a net income of 394.9 CNY/t. Relative to the baseline scenario, the integrated optimization scenario enhances national carbon emission reduction by 32.09% and improves energy saving by 27.69%. These findings underscore that advancing CM management is a vital strategy for agricultural decarbonization. It is recommended that policies prioritize the tailored promotion of technologies for efficient CM nutrient utilization based on local conditions, and encourage circular economy models.</p>

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Sustainable Chicken Manure Valorization in China: An Integrated Environmental and Economic Assessment

  • 期刊论文

  • 发表日期：

    2026年5月9日

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  • Qi Li,
  • Hanqiao Liu,
  • Guoxia Wei,
  • Hanyang Lu,
  • Qiuyu Yu,
  • Shuo Ma

摘要

The sustainable management of chicken manure (CM) is critical for China’s cultivation industry to achieve its green development goals. However, the diversity of valorization technologies and the lack of comprehensive sustainability assessments hinder the selection of optimal pathways. This study employs an integrated life cycle assessment (LCA) and life cycle costing (LCC) approach to evaluate the environmental and economic performance of twelve CM valorization technologies in China. Concurrently, the scenario analysis of the baseline, technical optimization, optimal layout and integrated optimization scenarios of CM management was conducted. The results indicate that, under the system boundaries and assumptions of this study, black soldier fly-based bioconversion (BC-BSF) showed the most favorable combined environmental and economic performance among the assessed technologies, reducing carbon emissions by 583 kg CO2 eq/t and generating a net income of 394.9 CNY/t. Relative to the baseline scenario, the integrated optimization scenario enhances national carbon emission reduction by 32.09% and improves energy saving by 27.69%. These findings underscore that advancing CM management is a vital strategy for agricultural decarbonization. It is recommended that policies prioritize the tailored promotion of technologies for efficient CM nutrient utilization based on local conditions, and encourage circular economy models.