TY - JOUR
T1 - Microaerobic condition as pretreatment for improving anaerobic digestion
T2 - A review
AU - Huiliñir, César
AU - Pagés-Díaz, Jhosané
AU - Vargas, Gustavo
AU - Vega, Sylvana
AU - Lauzurique, Yeney
AU - Palominos, Nicolás
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/9
Y1 - 2023/9
N2 - Pretreatment of waste before anaerobic digestion (AD) has been extensively studied during the last decades. One of the biological pretreatments studied is the microaeration. This review examines this process, including parameters and applications to different substrates at the lab, pilot and industrial scales, to guide further improvement in large-scale applications. The underlying mechanisms of accelerating hydrolysis and its effects on microbial diversity and enzymatic production were reviewed. In addition, modelling of the process and energetic and financial analysis is presented, showing that microaerobic pretreatment is commercially attractive under certain conditions. Finally, challenges and future perspectives were also highlighted to promote the development of microaeration as a pretreatment before AD.
AB - Pretreatment of waste before anaerobic digestion (AD) has been extensively studied during the last decades. One of the biological pretreatments studied is the microaeration. This review examines this process, including parameters and applications to different substrates at the lab, pilot and industrial scales, to guide further improvement in large-scale applications. The underlying mechanisms of accelerating hydrolysis and its effects on microbial diversity and enzymatic production were reviewed. In addition, modelling of the process and energetic and financial analysis is presented, showing that microaerobic pretreatment is commercially attractive under certain conditions. Finally, challenges and future perspectives were also highlighted to promote the development of microaeration as a pretreatment before AD.
KW - Accelerating hydrolysis
KW - Methane production
KW - Microaeration pretreatment
KW - Microaerobic process modelling
KW - Microbial diversity
UR - http://www.scopus.com/inward/record.url?scp=85161675686&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2023.129249
DO - 10.1016/j.biortech.2023.129249
M3 - Review article
C2 - 37268090
AN - SCOPUS:85161675686
SN - 0960-8524
VL - 384
JO - Bioresource Technology
JF - Bioresource Technology
M1 - 129249
ER -
