Universities play a critical role in shaping sustainable mobility strategies, especially in urban contexts where the institutional transport system can influence environmental and social outcomes. This study integrates Environmental and Social Life Cycle Assessment (E-LCA and S-LCA) to evaluate the current university transport system from internal combustion engines, diesel, and compressed natural gas (CNG), focusing on the operation and maintenance phases. Also, it compares seven scenarios, including electric, renewable sources, and biodiesel technologies. Environmental impacts were assessed using the ReCiPe 2016 midpoint method, which considers the following impact categories: Global Warming Potential (GWP); Ozone Formation, Human Health (OfHh); Ozone Formation, Terrestrial Ecosystem (OfTe); Terrestrial Acidification (TA); and Fine Particulate Matter Formation (FPmf). The sensitivity analysis explores scenarios to assess the effects of technological transitions and alternative energy sources on the environmental performance. Social impacts are assessed through a Social Performance Index (SPI) and Aggregated Social Performance Index (ASPI), which aggregates indicators such as safety, travel cost, punctuality, accessibility, and inclusive design. Accessibility emerged as the lowest indicator (ranging from 0.61 to 0.67), highlighting opportunities for improvement. Our findings support decision-making processes for integrating sustainable transport strategies into a University Mobility Plan, emphasizing the importance of combining technical performance with social inclusivity.

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.

El compostaje de residuos orgánicos es una práctica emergente en hogares e instituciones educativas que favorece la transferencia de conocimientos a conductas tendientes a minimizar los impactos ambientales y riesgos a la salud humana. La propuesta de investigación consistió en implementar un modelo de transición circular con perspectiva de ciclo de vida para promover el conocimiento adquirido a estudiantes de la Licenciatura en Ciencias Ambientales y la conducta ecológica en un entorno doméstico durante el confinamiento por la pandemia COVID-19. Las etapas del modelo son: generación, colecta, separación, tratamiento de compostaje y caracterización fisicoquímica. Como resultados se obtuvo que el proceso tuvo una eficiencia del 48 % con respecto al peso fresco y una calidad adecuada acorde a la normatividad oficial. La conducta ecológica adquirida en el grupo de estudiantes confinados en sus hogares, se evaluó mediante encuestas de percepción sobre acciones y actitudes realizadas con respecto al manejo doméstico de los residuos, arrojando un 59% como una experiencia exitosa. La perspectiva de ciclo de vida para el tratamiento de los residuos orgánicos orienta a contrarrestar el impacto ambiental, así como un enfoque de economía circular en la gestión integral dentro y fuera de la institución.