Evaluation of the process of neutralization and adsorption of pollutant gases from industrial process practices in the laboratory
DOI:
https://doi.org/10.56162/transdigital604Keywords:
adsorption, neutralization, pollutionAbstract
This study evaluated the neutralization and adsorption process for mitigating pollutant gases generated during acid digestion with lime. A 2³ factorial design was used for this purpose, in which the following factors were analyzed: the concentration of the neutralizing reagent, sodium hydroxide (NaOH), at levels of 0.5 and one mol (M), vacuum pressure (five and 10 cm Hg), and the type of adsorbent material (bentonite and silica gel) were analyzed as factors. The results showed that bentonite has a higher adsorption capacity for the generated acid gases compared to silica gel. Furthermore, higher neutralization percentages are achieved using a NaOH concentration of one M. Additionally, the pressure factor showed that reducing the vacuum pressure from 10 to five cm Hg yields better neutralization and adsorption results. Overall, the results indicate that the most favorable conditions for acid gas mitigation in the evaluated system correspond to the use of one M NaOH, a vacuum pressure of five cm Hg, and bentonite as the adsorbent material.
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Copyright (c) 2026 Karla Victoria Guevara Amatón, Juana María Nájera Ibarra, Alejandro Romero Barrientos, Kimberlee Delgado Goytia
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