Material Flows and Energy Analysis of Glass Containers Discarded in New Jersey, USA
Material Flows and Energy Analysis of Glass Containers Discarded in New Jersey, USA
复制标题
美国新泽西州废弃玻璃容器的物质流和能量分析
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
U. Krogmann
中科院分区：
文献类型：
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作者：
Ching;U. Krogmann
尽管在新的玻璃容器和玻璃纤维生产中使用碎玻璃作为原料更加积极合理，但在建筑项目和垃圾填埋场中使用碎玻璃（破碎的回收玻璃容器）作为骨料的情况迅速增加。增加使用碎玻璃作为骨料的影响尚未得到彻底评估。本研究的目的是模拟和量化整个新泽西的玻璃容器流量和相关的生命周期能源消耗，然后比较两种不同的回收方案和三种不同的最终使用/处置方案的生命周期能源消耗。材料流分析的结果表明，在2008年，在新泽西消费的玻璃容器中，只有约11%被用作玻璃容器或玻璃纤维原料，而用作建筑骨料的玻璃容器则是其五倍。然而，与建筑骨料相比，通过增加使用碎玻璃作为容器原料可以实现较低的系统能量需求，即使当碎玻璃被运输1,600英里到玻璃容器制造商时。根据不确定性分析，与所有其他情景相比，增加作为容器原料的用途的情景有大约80%的可能性具有较低的系统能源需求。为了实现在新泽西增加使用碎玻璃作为玻璃容器原料，必须提高碎玻璃的质量。
The use of glass cullet (crushed recycled glass containers) as aggregate in construction projects and landfills has increased rapidly even though the use of cullet as feedstock in new glass container and fiberglass production is energetically more sound. The effect of increased use of cullet as aggregate has not yet been thoroughly assessed. The objectives of this study were to model and quantify glass container flows across New Jersey and the associated life cycle energy consumption, and then compare life cycle energy consumption for two different recycling scenarios and three different end‐use/disposal scenarios. The results of a material flow analysis showed that in 2008 only about 11% of the glass containers consumed in New Jersey were used as glass container or fiberglass feedstock, while five times more were used as construction aggregate. However, a lower system energy requirement can be achieved by increased use of cullet as container feedstock compared to construction aggregate, even when the cullet is transported 1,600 miles to a glass container manufacturer. Based on the uncertainty analysis, there is about an 80% probability for the scenario with increased use as container feedstock to have a lower system energy requirement when compared with all other scenarios. To achieve increased use of cullet as glass container feedstock in New Jersey, the quality of the cullet must be improved.