Life cycle assessment of polyphenol extraction from wastewater: critical review and update.

The aim of this study was to carry out a survey and critical analysis of the Life Cycle Assessment study on polyphenol extraction from wastewater in the olive oil system, in order to continue and improve research on the methodology. The analysis treats the complete cycles of use, reuse and recycling of waste and scrap processing as “secondary raw materials” or as “innovative raw materials”. Data obtained from LCA screening of a process of polyphenol extraction by an adsorption/desorption resin mechanism were used in the study. Improvements to update Life Cycle Inventory (LCI) data using a multi-method approach of impact assessment and process modelling development have been proposed.