期刊
JOURNAL OF CLEANER PRODUCTION
卷 289, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2020.125762
关键词
CO2 footprint; Embodied energy; SUB-RAW index; Sustainability; Phosphorus
资金
- DEASPHOR European project [CUP D81I18000190002, FCT ERA-MIN/0002/2017]
- FANGHI project - Regione Lombardia
This study introduces a novel approach for sustainability evaluation of new technologies, utilizing embodied energy and CO2 footprint parameters for pre-screening analysis before life cycle assessment. The SUBRAW index is defined to compare environmental impacts of different substituting materials/processes. Results suggest that wet chemical leaching approaches are the most sustainable methods for phosphorus recovery from sewage sludge ash.
This paper reports a novel and simplified approach for sustainability evaluation of new technologies, based on the use of two parameters (i.e. embodied energy and CO2 footprint) that account for the energy and emissions involved in the formation of a material, suitable to perform pre-screening analysis, preliminary to life cycle assessment. This new approach is presented and used to compare the available technologies for phosphorous recovery from sewage sludge ash. A dimensionless index, defined as SUBRAW index, is used to compare the results about the environmental impact of each selected substituting material/process. This method is applied to full, pilot, and laboratory scale processes available in literature in the context of phosphorus extraction technologies. The results show that wet chemical leaching approaches appear to be the most sustainable methods. (C) 2020 Elsevier Ltd. All rights reserved.
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