TY - JOUR
T1 - Anaerobic digestion inhibition indicators and control strategies in processes treating industrial wastewater and wastes
AU - Serrano-Meza, A.
AU - Garzón-Zúñiga, M. A.
AU - Barragán-Huerta, B. E.
AU - Estrada-Arriaga, E. B.
AU - Almaraz-Abarca, N.
AU - García-Olivares, J. G.
N1 - Publisher Copyright:
© 2020, Universidad Autonoma Metropolitana Iztapalapa. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Based on a literature review, a set of inhibition indicators is presented for each stage of anaerobic digestion according to the behavior of certain parameters: the reduction of the soluble COD/total COD ratio; the low volatile fatty acids (VFA) production; the accumulation of VFA and low acetate production; and the low methane production. Moreover, we present several preventive and recovery strategies for each stage considering the detected inhibition indicator. Some of the preventive strategies are the acclimation of microorganisms to degrade organic-matter in the presence of certain inhibitors, the enrichment of the inoculum with various additives (e.g., sulfate-reducing bacteria, electron donors, mineral adsorbents or nutrients), the dilution of the influent, and the prior removal of the inhibitors. Some of the proposed recovery strategies are the reduction of the inhibitor concentration by removal strategies (e.g., precipitation, adsorption, and sulfate-reduction), intermittent feeding, and decrease of the total influent volume. Lastly, we present the challenges and future perspectives of applying the inhibition indicators and control strategies.
AB - Based on a literature review, a set of inhibition indicators is presented for each stage of anaerobic digestion according to the behavior of certain parameters: the reduction of the soluble COD/total COD ratio; the low volatile fatty acids (VFA) production; the accumulation of VFA and low acetate production; and the low methane production. Moreover, we present several preventive and recovery strategies for each stage considering the detected inhibition indicator. Some of the preventive strategies are the acclimation of microorganisms to degrade organic-matter in the presence of certain inhibitors, the enrichment of the inoculum with various additives (e.g., sulfate-reducing bacteria, electron donors, mineral adsorbents or nutrients), the dilution of the influent, and the prior removal of the inhibitors. Some of the proposed recovery strategies are the reduction of the inhibitor concentration by removal strategies (e.g., precipitation, adsorption, and sulfate-reduction), intermittent feeding, and decrease of the total influent volume. Lastly, we present the challenges and future perspectives of applying the inhibition indicators and control strategies.
KW - Anaerobic digestion inhibition
KW - Inhibition mitigation
KW - Inhibition recovery
KW - Wastes treatment
KW - Wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=85090678313&partnerID=8YFLogxK
U2 - 10.24275/rmiq/IA1221
DO - 10.24275/rmiq/IA1221
M3 - Artículo
AN - SCOPUS:85090678313
SN - 1665-2738
VL - 19
SP - 29
EP - 44
JO - Revista Mexicana de Ingeniera Quimica
JF - Revista Mexicana de Ingeniera Quimica
ER -