高级检索

运用生命周期评价方法研究牛皮沙发革的环境足迹

Analysis of Environmental Footprint of Bovine Upholstery Leather by Using Life Cycle Assessment

  • 摘要: 随着国家“双碳”战略日益深化、产品环境足迹/碳足迹逐渐成为国际贸易壁垒,利用生命周期评价(LCA)方法对皮革产品进行环境影响评估已迫在眉睫。使用LCA方法以及自主建立的皮革化学品和中国奶牛皮生命周期清单数据库核算了牛皮沙发革的环境足迹(含碳足迹),解析了原料皮、化学品、制革生产能耗、上游运输、废物处理和包装材料等清单数据对环境影响的贡献。牛皮沙发革全球增温潜势(GWP)结果为11.6 kg CO2 eq/m2成革,其中原料皮的贡献率高达79.6%,其余清单数据(不含原料皮)的贡献仅为2.37 kg CO2 eq/m2成革。一次能源消耗参数结果为73.8 MJ/m2成革,化学品、制革生产能耗和原料皮的贡献率分别为39.4%、30.6%和24.6%。水资源消耗参数结果为907.9 kg/m2成革,原料皮的贡献率为93.2%。生态毒性参数结果为56.3 CTUe/m2成革,与铬鞣剂用量密切相关。由此可见,提高原料皮的资源化利用率是皮革产品实现绿色低碳制造的关键。

     

    Abstract: Given the increasing emphasis on ‘dual carbon’ goals and the emergence of product environmental footprints/carbon footprints as international trade barriers, the evaluation of the environmental impacts of leather products using life cycle assessment (LCA) has become imperative. In this study, the LCA method and self-developed life cycle inventory databases for leather chemicals and Chinese cow hides were used to assess the environmental footprint, including the carbon footprint of bovine upholstery leather. Additionally, the study analyzed the contributions of various inventory data, including raw hides, leather chemicals, energy consumption during leather production, upstream transportation, waste treatment, and packaging materials, to the overall environmental impacts. The result of global warming potential (GWP) indicator of bovine upholstery leather was 11.6 kg CO2 eq/m2 of finished leather, with raw hides contributing a substantial 79.6%. The contribution of the remaining inventory data (excluding raw hides) was only 2.4 kg CO2 eq/m2 of finished leather. The result of primary energy demand indicator of upholstery leather was 73.8 MJ/m2 of finished leather, with the contributions from chemicals, energy consumption during leather production, and raw hides accounting for 39.4%, 30.6%, and 24.6%, respectively. The result of water use indicator of upholstery leather amounts to 907.9 kg/m2 of finished leather, with raw hides contributing the majority (93.2%). The result of ecotoxicity indicator of upholstery leather was 56.3 CTUe/m2 of finished leather, showing a close relationship with the quantity of chromium tanning agents used. Thus, improving the resource utilization rate of raw hides is key to achieving green and low-carbon manufacturing of leather products.

     

/

返回文章
返回