Resumen

BURBOA CHARIS, Vianey A et al. Use of carbon activated impregnated with Fe to enhance methane production of wastewater from nixtamalization process. Enfoque UTE [online]. 2025, vol.16, n.3, pp.37-43. ISSN 1390-6542.  https://doi.org/10.29019/enfoqueute.1144.

Wastewater from the nixtamalization process represents a challenge due to its complex and highly alkaline composition. The present work aims to enhance methane production by anaerobic digestion of nejayote with conductive materials based on carbon modified with iron. Through two experimental phases, the most significant results show that the metal load in granular activated carbon (GAC) does not stimulate electron transfer in a medium such as nejayote. On the other hand, when the pH is kept at neutral values, an 88 % reduction in COD and high values ​​of accumulated methane are obtained. The study describes the relationship between using GAC and nejayote as a methane promoter in anaerobic digestion, which can be a sustainable alternative.

Palabras clave : Anaerobic digestion; wastewater; nejayote; methane production; conductive materials; direct interspecies electron transfer (DIET).

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