Valorization of cellulosic fibers derived from printed paper with potential application in biomedical membranes
DOI:
https://doi.org/10.29105/mdi.v14i24.374Keywords:
fiber recovery, cellulosic purification, waste valorization, physicochemical characterization, cellulosic membranesAbstract
Recovering cellulosic fibers from printed paper offers an alternative for waste valorization and their use in higher-value materials. This study aimed to compare deinking and purification technologies used to recover cellulosic fibers from paper waste, considering processing conditions, physicochemical properties, limitations, and potential applications in biomedical membranes. This analytical-comparative literature review covered research published between 2020 and 2026 on physical, chemical, and enzymatic treatments, as well as techniques for characterizing recovered fibers. The results indicate that the type of treatment can enhance the properties of the recovered cellulosic fibers. Furthermore, FTIR and TGA techniques complement the assessment of the chemical and thermal characteristics of the fibers, although they do not, on their own, demonstrate the complete removal of contaminants. The results suggest that no single treatment applies to all secondary fibers; therefore, the choice of method must consider the raw material and the intended final application. Using recovered cellulose in biomedical membranes is promising, but it requires further evaluation of purity, functional properties, and biological safety.
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