The aeration rate in the aerobic degradation of the organic fraction of municipal solid waste

Authors

  • Gabriela Carrillo-Sancen División Químico Biológicas-Universidad Tecnológica de Tecámac. Tecámac, Estado de México, México. CP. 55740.
  • Manuel Alejandro Cuautle-Marin Laboratorio de investigación en procesos avanzados de tratamiento de aguas-Instituto de Ingeniería-Unidad Académica Juriquilla-Universidad Nacional Autónoma de México. Blvd. Juriquilla 3001, Querétaro, México
  • Francisco Javier Martínez Valdez División Químico Biológicas-Universidad Tecnológica de Tecámac. Tecámac, Estado de México, México. CP. 55740.
  • Gerardo Saucedo-Catañeda Departamento de Biotecnología-Universidad Autónoma Metropolitana-Unidad Iztapalapa. México. CP. 09340
  • Dimitrios Komilis Departamento de Ingeniería Ambiental-Universidad Demócrito de Tracia. Vasilissis Sofias 12, Xanthi 671 00, Grecia

DOI:

https://doi.org/10.29312/remexca.v12i7.2760

Keywords:

enzymatic activities, respirometry, aeration rate

Abstract

Microbial and enzymatic kinetics are important factors during the aerobic degradation of the organic fraction of municipal solid waste, these depend mainly on the incubation temperature and aeration rates. The objective of this research was to evaluate the process of aerobic degradation, by multiple variables and their combination to understand the interactions between aeration rates in aerobic degradation and their responses. Aeration rates were set at 0.032, 0.064, 0.125, 0.251 and 0.392 L of moist air kg-1 min-1 at 35 °C with inoculum. Microbial activity was evaluated indirectly by means of respirometry, that is, CO2 production and O2 consumption. Extracellular enzymatic activities (ie., pectinases, cellulases, xylanases and proteases) were quantified by releasing the reducing sugars. The different tests were carried out at the Metropolitan Autonomous University, Iztapalapa Unit in September 2019. Finding a strong positive relationship between xylanase and pectinase enzymatic activity and dry weight loss, along with increased cellulase and xylanase activities at higher aeration rates.

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Published

2021-11-04

How to Cite

Carrillo-Sancen, Gabriela, Manuel Alejandro Cuautle-Marin, Francisco Javier Martínez Valdez, Gerardo Saucedo-Catañeda, and Dimitrios Komilis. 2021. “The Aeration Rate in the Aerobic Degradation of the Organic Fraction of Municipal Solid Waste”. Revista Mexicana De Ciencias Agrícolas 12 (7). México, ME:1149-59. https://doi.org/10.29312/remexca.v12i7.2760.

Issue

Vol. 12 No. 7 (2021)

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