Industrial symbiosis (IS) promotes collaboration among traditionally unrelated industries, finding ways to use waste from one as a raw material for another. To enhance IS sustainability, it is essential that involved firms are aware of potential costs and benefits of new exchanges to make informed decisions. Previous assessments have primarily focused on environmental and financial implications of potenial IS synergies, but social implications are rarely addressed. Even when considered, only a limited set of social indicators, such as job creation, development of social ties, and trust among partners, are used. Such an unbalanced focus on sustainability aspects may contribute to problem shifting and suboptimal selection of new synergies. A comprehensive life cycle sustainability assessment (LCSA) of IS, covering all three dimensions is clearly lacking. Conventionally, a triple bottom line (TBL) approach is used to evaluate sustainability; however, we explore the concept of capitals and develop a capital-based LCSA framework as a means to evaluate sustainability of IS by examining the stocks and flows of eight different types of capital, or resources creating value, in a system. Measuring stocks and flows is conceptually much closer to the actual definition of sustainability (meeting the needs of the present by maintaining the available stocks without compromising the future needs), when compared to the TBL approach of simply aggregating environmental, social, and economic impact assessment results. This novel LCSA approach is tested at a facility with active IS, The Plant in Chicago, considering three alternative fuel usage scenarios for baking bread at an on-site bakery.

中文翻译：

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基于资本的生命周期可持续性评估：潜在产业共生协同效应的评估

工业共生 (IS) 促进了传统上不相关的行业之间的合作，找到了将一个行业的废物用作另一个行业的原材料的方法。为了提高信息系统的可持续性，相关公司必须了解新交易所的潜在成本和收益，以便做出明智的决策。以前的评估主要集中在潜在 IS 协同效应的环境和财务影响上，但很少涉及社会影响。即使考虑到这一点，也只使用了一组有限的社会指标，例如创造就业机会、社会联系的发展以及合作伙伴之间的信任。这种对可持续性方面的不平衡关注可能会导致问题转移和新协同效应的次优选择。IS 的综合生命周期可持续性评估 (LCSA)，显然缺乏涵盖所有三个维度。通常，使用三重底线 (TBL) 方法来评估可持续性；然而，我们探索了资本的概念并开发了一个基于资本的 LCSA 框架，通过检查系统中八种不同类型的资本或创造价值的资源的存量和流量来评估 IS 的可持续性。与简单汇总环境、社会和经济影响评估的 TBL 方法相比，测量存量和流量在概念上更接近于可持续性的实际定义（通过维持可用存量满足当前需求而不影响未来需求）结果。这种新颖的 LCSA 方法在芝加哥工厂的活跃 IS 设施中进行了测试，