Hybridised sustainability metrics for use in life cycle assessment of bio-based products: resource efficiency and circularity,Green Chemistry

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Hybridised sustainability metrics for use in life cycle assessment of bio-based products: resource efficiency and circularity
Green Chemistry ( IF 9.3 ) Pub Date : 2020/01/08 , DOI: 10.1039/c9gc02992c
Kadambari Lokesh _{1,

2,

3,

4} , Avtar S. Matharu _{1,

2,

3,

4} , Ioannis K. Kookos _{5,

6,

7,

8} , Dimitris Ladakis _{8,

9,

10,

11} , Apostolis Koutinas _{8,

9,

10,

11} , Piergiuseppe Morone _{12,

13,

14,

15,

16} , James Clark _{1,

2,

3,

4}

Affiliation

The development, implementation and social acceptance of resource efficient, circular, bio-based economies require critical understanding of the whole supply chain from feedstock to end-use. Trust, transparency and traceability will be paramount. Though life cycle assessment (LCA) is a universally chosen approach to fulfil this purpose, the nature of data required and the depth of analysis lead to complex interpretations of the findings. Herein, a new set of hybridised, first-line sustainability indicators, drawn from the principles of green chemistry and resource (material and energy) circularity, are reported. These flexible, potentially stand-alone metrics are demonstrated via application to an exemplary comparative LCA, incorporating the hybridised indicators including hazardous chemical use, waste generated, resource circularity and energy efficiency, from the “gate-to-gate” stages for the bio-based case studies and their petro-derived commercial counterparts. These metrics were observed to quantify critical new information relevant to our transition to a circular economy, bridging significant gaps in contemporary environmental impact assessment methodologies. Appropriate additional evaluations that examine the performance of metrics, when the embedded resource efficiency and circularity strategies are omitted, have also been undertaken and reported. The data drawn from employing these methods are crucial to inform and encourage operational optimisation, transparency in sustainability reporting and practices to a significant number of value-chain actors including manufacturers, policy makers and consumers.

中文翻译：

用于生物基产品生命周期评估的混合可持续性指标：资源效率和循环性

资源高效，循环，基于生物的经济的发展，实施和社会接受要求对从原料到最终用途的整个供应链有严格的了解。信任，透明度和可追溯性将至关重要。尽管生命周期评估（LCA）是实现此目的的普遍选择的方法，但是所需数据的性质和分析深度导致对结果的复杂解释。在此，报告了一组新的混合的，一线可持续性指标，这些指标是根据绿色化学原理和资源（材料和能源）循环性得出的。这些灵活的，可能独立的指标通过以下方式演示应用于示例性比较性LCA，并结合了混合指标，包括基于生物的案例研究及其从石油衍生的商业对应物的“从门到门”阶段的危险化学品的使用，产生的废物，资源循环和能源效率的混合指标。观察到这些指标可量化与我们向循环经济过渡有关的重要新信息，弥合了当代环境影响评估方法中的重大空白。当省略了嵌入式资源效率和循环性策略时，还进行了适当的其他评估指标的评估，并进行了报告。采用这些方法所获得的数据对于告知和鼓励运营优化至关重要，

更新日期：2020-02-13

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