Upcycling livestock processing waste to bioplastics for sustainable meat production systems: material quantification and environmental impact
文献类型： 外文期刊
作者： Jia, Cunling 1 ; Wang, Shunli 2 ; Wang, Lili 3 ;
作者机构： 1.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China
3.Anhui Univ, Sch Life Sci, Hefei 230039, Anhui Province, Peoples R China
关键词： Slaughterhouse waste; Wastewater; Bioplastic; Biomethane; Environmental impact
期刊名称：RESOURCES CONSERVATION AND RECYCLING （ 影响因子：10.9； 五年影响因子：12.7 ）
ISSN： 0921-3449
年卷期： 2025 年 220 卷
页码：
收录情况： SCI
摘要： Significant amounts of slaughterhouse waste (SHW) are generated from livestock processing industry and could pose substantial environmental risks. Given its versatile properties, SHW can be upcycled into high-value product-bioplastics. This study presented the first global estimation of livestock processing waste, specifically SHW, across 193 countries and regions. Meanwhile, the bioplastics potentially produced from SHW and wastewater were analyzed. The results revealed that 103 million tonnes of SHW and 2699 million tonnes of wastewater were produced in 2022, with the potential to generate 31.3 million tonnes of bioplastics. Integrating biomethane production into bioplastic manufacturing in slaughterhouses can reduce fossil energy consumption and mitigate greenhouse gas emissions. Carbon reduction of 1.4-46.9 tons CO2-eq/d was observed from a typical slaughterhouse. The findings of this study provide valuable insights into the effective recycling of bioplastics from SHW and wastewater, thereby advancing the circular economy and environmental sustainability of the global meat industry.
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