Browsing by Author "Yandi Suarez, Johan Stiven"
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Item Biorremediación de fuentes hídricas utilizando sistemas micro y nanométricos de quitosano para contaminantes emergentes: una revisión(Universidad Santiago de Cali, 2025-11-28) Yandi Suarez, Johan Stiven; Ciro Monsalve, Yhors Alexander (Director)The contamination of water sources by emerging pollutants, particularly pharmaceutical and industrial residues, represents an increasing environmental concern. This study aimed to review the scientific evidence published between 2015 and 2025 on the application of micro- and nanometric chitosan systems for water bioremediation. The search was conducted in international databases (PubMed, Scopus, Web of Science, among others) following the PRISMA 2020 methodology, applying inclusion and exclusion criteria to ensure the relevance and quality of the studies. Selected articles reported the synthesis, characterization, and application of chitosan derivatives in the adsorption of pharmaceuticals, antibiotics, and heavy metals. Results showed that chitosan, due to its amino and hydroxyl groups, exhibited a high adsorption capacity, influenced by parameters such as pH, contact time, and adsorbent dosage. Removal efficiencies above 80% were identified for compounds such as diclofenac, ibuprofen, amoxicillin, ciprofloxacin, and metals including Cr(VI), As(III/V), and Pb(II). The Langmuir and Freundlich isotherm models were the most commonly applied to describe adsorption processes. Moreover, chemical modifications, incorporation of metal oxides, and the synthesis of magnetic nanocomposites enhanced the stability and contaminant removal capacity of chitosan-based systems.