| Title | The role of microbial ecology in improving the performance of anaerobic digestion of sewage sludge |
|---|---|
| ID_Doc | 6659 |
| Authors | Krohn, C; Khudur, L; Dias, DA; van den Akker, B; Rees, CA; Crosbie, ND; Surapaneni, A; O'Carroll, DM; Stuetz, RM; Batstone, DJ; Ball, AS |
| Title | The role of microbial ecology in improving the performance of anaerobic digestion of sewage sludge |
| Year | 2022 |
| Published | |
| Abstract | The use of next-generation diagnostic tools to optimise the anaerobic digestion of municipal sewage sludge has the potential to increase renewable natural gas recovery, improve the reuse of biosolid fertilisers and help operators expand circular economies globally. This review aims to provide perspectives on the role of microbial ecology in improving digester performance in wastewater treatment plants, highlighting that a systems biology approach is fundamental for monitoring mesophilic anaerobic sewage sludge in continuously stirred reactor tanks. We further highlight the potential applications arising from investigations into sludge ecology. The principal limitation for improvements in methane recoveries or in process stability of anaerobic digestion, especially after pre-treatment or during co-digestion, are ecological knowledge gaps related to the front-end metabolism (hydrolysis and fermentation). Operational problems such as stable biological foaming are a key problem, for which ecological markers are a suitable approach. However, no biomarkers exist yet to assist in monitoring and management of clade-specific foaming potentials along with other risks, such as pollutants and pathogens. Fundamental ecological principles apply to anaerobic digestion, which presents opportunities to predict and manipulate reactor functions. The path ahead for mapping ecological markers on process endpoints and risk factors of anaerobic digestion will involve numerical ecology, an expanding field that employs metrics derived from alpha, beta, phylogenetic, taxonomic, and functional diversity, as well as from phenotypes or life strategies derived from genetic potentials. In contrast to addressing operational issues (as noted above), which are effectively addressed by whole population or individual biomarkers, broad improvement and optimisation of function will require enhancement of hydrolysis and acidogenic processes. This will require a discovery-based approach, which will involve integrative research involving the proteome and metabolome. This will utilise, but overcome current limitations of DNA-centric approaches, and likely have broad application outside the specific field of anaerobic digestion. |
| https://www.frontiersin.org/articles/10.3389/fmicb.2022.1079136/pdf |
Similar Articles
| ID | Score | Article |
|---|---|---|
6129
|
Ferrer, I; Passos, F; Romero, E; Vázquez, F; Font, X Optimising sewage sludge anaerobic digestion for resource recovery in wastewater treatment plants(2024) | |
| 23904
|
Torretta, V; Tolkou, AK; Katsoyiannis, IA; Caccamo, FM; Miino, MC; Baldi, M; Collivignarelli, MC Enhancement of Methanogenic Activity in Volumetrically Undersized Reactor by Mesophilic Co-Digestion of Sewage Sludge and Aqueous Residue(2021)Sustainability, 13, 14 | |
| 14720
|
Tao, Y; Ersahin, ME; Ghasimi, DSM; Ozgun, H; Wang, HY; Zhang, XD; Guo, M; Yang, YF; Stuckey, DC; van Lier, JB Biogas productivity of anaerobic digestion process is governed by a core bacterial microbiota(2020) | |
| 26450
|
Krohn, C; Jansriphibul, K; Dias, DA; Rees, CA; Ben van den Akker; Boer, JC; Plebanski, M; Surapaneni, A; O'Carroll, D; Richard, S; Batstone, DJ; Ball, AS Dead in the water - Role of relic DNA and primer choice for targeted sequencing surveys of anaerobic sewage sludge intended for biological monitoring(2024) | |
| 8587
|
Volschan, I; de Almeida, R; Cammarota, MC A review of sludge pretreatment methods and co-digestion to boost biogas production and energy self-sufficiency in wastewater treatment plants(2021) | |
| 13127
|
Wei, J; Hao, XD; van Loosdrecht, MCM; Li, J Feasibility analysis of anaerobic digestion of excess sludge enhanced by iron: A review(2018) | |
| 15490
|
Azevedo, A; Lapa, N; Moldao, M; Duarte, E Opportunities and challenges in the anaerobic co-digestion of municipal sewage sludge and fruit and vegetable wastes: A review(2023) | |
| 64856
|
Smetana, G; Grosser, A Kinetic study of high-solids anaerobic co-digestion of pre-treated organic waste in terms of methane production(2023) | |
| 26883
|
Garlicka, A; Kupidura, P; Krawczyk, P; Umiejewska, K; Muszynski, A Re-flocculation reduces the effectiveness of sewage sludge pretreatment through hydrodynamic disintegration prior to anaerobic digestion(2023) | |
| 24490
|
Das, A; Das, S; Das, N; Pandey, P; Ingti, B; Panchenko, V; Bolshev, V; Kovalev, A; Pandey, P Advancements and Innovations in Harnessing Microbial Processes for Enhanced Biogas Production from Waste Materials(2023)Agriculture-Basel, 13, 9 |