庭院垃圾条形堆肥与用作日覆盖替代材料（ADC）的生命周期比较

Life cycle comparison of yard waste approaches in windrow composting and alternative daffy cover as soil cover utiliT^d in landfill

本研究比较了用庭院垃圾进行条形堆肥与作为日覆盖替代材料（Alternative Daily Cover简称ADC）替代垃圾填埋场土壤覆盖两种情况对环境的影响。使用SimaPro生命周期软件对两者进行生命周期评估，结果显示ADC比条形堆肥对环境更有益。ADC也是一种成本较低的处置庭院垃圾的方法。这一发现只适用于该地区有配备了气体收集系统并可将庭院垃圾用作日覆盖替代材料的卫生填埋场。否则，对于处置源头分类的庭院垃圾，环境友好的处置方式是堆肥而不是填埋。

This study compared the environmental impacts of composting yard wastes in windrows with using them in place of soil as alternative daily cover （ADC） in landfills. The Life Cycle Assessment was made using the SimaPro LCA software and showed that the ADC scenario is more beneficial for the environmentthan windrow composting. ADC use is also a less costly means of disposal of yard wastes. This finding applies only in cases where there are sanitary landfills in the area that are equipped with gas collection systems and can use yard wastes as alternative daily cover. Otherwise, the environmentally preferable method for disposal of sourceseparated yard wastes is composting rather than landfilling.