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Keywords = Cu/Fe-pillared clays

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25 pages, 1671 KB  
Article
Life Cycle Assessment of a Cu/Fe-Pillared Clay Catalyzed Photo-Fenton Process for Paracetamol Removal
by Claudia Alanis, Alejandro Padilla-Rivera, Rubi Romero, Armando Ramírez-Serrano and Reyna Natividad
Processes 2025, 13(10), 3165; https://doi.org/10.3390/pr13103165 - 4 Oct 2025
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Abstract
Due to its efficiency, advanced oxidation processes (AOP), such as photo-Fenton, have become an alternative for removing emerging contaminants like paracetamol. The objective of this work was to perform a life cycle assessment (LCA) according to ISO 14040/44 for a heterogeneous photo-Fenton process [...] Read more.
Due to its efficiency, advanced oxidation processes (AOP), such as photo-Fenton, have become an alternative for removing emerging contaminants like paracetamol. The objective of this work was to perform a life cycle assessment (LCA) according to ISO 14040/44 for a heterogeneous photo-Fenton process catalyzed by Cu/Fe-pillared clays (PILC) for the removal of paracetamol from water. The study covered catalyst synthesis and four treatment scenarios, with inventories built from experimental data and ecoinvent datasets; treatment time was 120 min per functional unit. Environmental impacts for catalyst synthesis were quantified with ReCiPe 2016 (midpoint), while toxicity-related impacts of the degradation stage were assessed with USEtox™ (human carcinogenic toxicity, human non-carcinogenic toxicity, and freshwater ecotoxicity). Catalyst synthesis dominated most midpoint categories, the global warming potential for 1 g of Cu/Fe-PILC was 10.98 kg CO2 eq. Toxicity results for S4 (photo-Fenton Cu/Fe PILC) showed very low values: 9.73 × 10−12 CTUh for human carcinogenic and 1.29 × 10−13 CTUh for human non-carcinogenic. Freshwater ecotoxicity ranged from 5.70 × 10−4 PAF·m3·day at pH 2.7 (≥60 min) to 1.67 × 10−4 PAF·m3·day at pH 5.8 (120 min). Overall, optimizing pH and reaction time, are key levers to improve the environmental profile of AOP employing Cu/Fe-PILC catalysts. Full article
(This article belongs to the Special Issue Advanced Oxidation Processes for Waste Treatment)
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