在生产环节碳排放相当高的玻璃,必须在回收和处理环节加大力度 | 图源:pixabay.com
● ● ●
图1 塑料瓶的高分子结构示意图 | 图源[9]
图2 玻璃制品的制造过程 | 图源[13]
图3 不同材质的果汁包装全生命周期参数比较,一次性使用的玻璃(斜杠的柱)在大部分参数上都要比其他材料环境影响更大 | 图源[23]
● 评估包装的重复使用率需要达到多少次,环境效益最佳。
图4 全生命周期比较:牛奶一次性塑料包装vs重复使用玻璃包装的省水模式、普通模式、不省水模式
图5 欧洲的玻璃容器回收情况 | 图源[34]
参考文献:(上下滑动可浏览)
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