Síntesis de biocarbón a partir de residuos de phaseolus vulgaris l. para un sistema de filtración de agua potenciado con nanopartículas de plata.
DOI:
https://doi.org/10.22267/huellas.251121.25Keywords:
bean, activated carbon, solid waste, sustainability, environmental, filtration, water.Abstract
The effective management of solid waste is paramount to safeguarding our environment and ensuring a sustainable future. Globally, the agricultural sector significantly contributes to soil and water pollution, despite its substantial contribution to the global Gross Domestic Product (GDP), particularly in developing countries like Ecuador. Agricultural waste generated post-production is often inadequately managed and underutilized during processing and product collection. This study focuses on obtaining activated carbon from bean pod residues (Phaseolus Vulgaris L.) and its application for water purification. To obtain activated carbon, bean pods were collected, subjected to carbonization and chemical activation with phosphoric acid (H3PO4) at 700°C, followed by washing. Samples were characterized using Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD). A preliminary gravimetric analysis was conducted to assess the technical feasibility of the process. Furthermore, the properties of activated carbon were enhanced by integrating silver nanoparticles (NPs-Ag), thereby increasing its effectiveness in contaminant removal and bactericidal activity. This enhanced activated carbon was employed in water microbiological analysis filters, resulting in a pH reduction from 8.2 to 7.45 and a 70% decrease in microorganisms. The efficiency of activated carbon extraction reached 63.83%; however, process optimization was identified as necessary. Notably, the most promising results in water purification were observed with the incorporation of silver nanoparticles. These findings support the viability of a sustainable solution to address agricultural waste management challenges and improve access to clean water in vulnerable communities.
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