Yu Fei, Han Feng, Cui Zhaojie
School of Environmental Science and Engineering, Shandong University, No. 27 South Shanda Road, Jinan, 250199, People's Republic of China.
Environ Sci Pollut Res Int. 2015 Apr;22(7):5511-8. doi: 10.1007/s11356-014-3712-z. Epub 2014 Oct 24.
Reusing industrial waste may have impressive potential environmental benefits, especially in terms of the total life cycle, and life cycle assessment (LCA) has been proved to be an effective method to evaluate industrial symbiosis (IS). Circular economy and IS have been developed for decades and have been successful in China. However, very few studies about the environmental benefit assessment of IS applied by LCA in China have been conducted. In the current article, LCA was used to evaluate the environmental benefits and costs of IS, compared with a no-IS scenario for four environmental impact categories. The results showed that four environmental benefits were avoided by the 11 symbiosis performances, namely, 41.6 thousand TJ of primary energy, 4.47 million t CO2e of greenhouse gasses, 19.7 thousand t SO2e of acidification, and 81.1 t PO4(3+)e of eutrophication. Among these IS performances, the comprehensive utilization of red mud produced the most visible benefit. The results also present that energy conservation was the distinctive feature of IS in China.
再利用工业废弃物可能会带来显著的潜在环境效益，尤其是在整个生命周期方面，而生命周期评估（LCA）已被证明是评估产业共生（IS）的有效方法。循环经济和产业共生已经发展了几十年，并且在中国取得了成功。然而，在中国，很少有关于运用生命周期评估来对产业共生进行环境效益评估的研究。在当前这篇文章中，生命周期评估被用于评估产业共生的环境效益和成本，并与无产业共生情景下的四种环境影响类别进行了比较。结果表明，11种共生表现避免了四种环境效益，即4.16万太焦耳的一次能源、447万吨二氧化碳当量的温室气体、1.97万吨二氧化硫当量的酸化以及81.1吨磷酸根离子当量的富营养化。在这些产业共生表现中，赤泥的综合利用产生了最明显的效益。结果还表明，节能是中国产业共生的显著特征。
