A need for a standardization in anaerobic digestion experiments? Let's get some insight from meta-analysis and multivariate analysis

Lavergne, Céline; Jeison, David; Ortega, Valentina; Chamy, Rolando; Donoso‐Bravo, Andrés

doi:10.1016/j.jenvman.2018.05.030

Cited by 11 publications

(6 citation statements)

References 26 publications

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“…At the lowest ammonium concentration, we reported BMP efficiency globally comparable with the “undisturbed” literature, even if efficiency indicators depend on substrates and inoculum ( 30 , 31 ). Our MPR IC 50 values (2.19 to 3.30 g N-NH 4 + liter −1 ) were very close to the median value (3.9 ± 2.7 g N-NH 4 + liter −1 ) computed from the recent survey of Capson-Tojo et al ( 10 ).…”

Section: Discussionsupporting

confidence: 80%

Similar Methanogenic Shift but Divergent Syntrophic Partners in Anaerobic Digesters Exposed to Direct versus Successive Ammonium Additions

et al. 2021

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Section: Discussionsupporting

confidence: 80%

Similar Methanogenic Shift but Divergent Syntrophic Partners in Anaerobic Digesters Exposed to Direct versus Successive Ammonium Additions

et al. 2021

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“…Figure 1 shows that galaxy G7 is associated with pretreatments of the inoculum; the rest are associated more strongly with pretreatments of the substrate. Among the works associated with the inoculum, highlight as a complex and crucial factor for AD, since this process is based on the metabolic characteristics of microorganisms and is much more efficient when there is an inoculum with good sedimentation and intense microbiological activity [3,4,19,20].…”

Section: Technological Surveillancementioning

confidence: 99%

“…This is very consistent with what is found in the literature since, in general, the best performing inoculants in AD are granular inocula, which come from highly stable operational anaerobic reactors and are fed with substrates with high concentrations of organic matter. These granular inocula are unlike the flocculant inocula, that are associated with low concentrations of substrates, such as municipal wastewater [4,51,59,60].…”

Section: Hierarchy Of the Conditioning Alternativesmentioning

confidence: 99%

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Selection of inocula conditioning methodologies for the anaerobic digestion of food waste

Parra-Orobio

Nieto-Mendoza

Rivera-Henao

et al. 2019

Rev.Fac.Ing.Univ.Antioquia

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Food waste (FW) has a high potential for use in biological processes such as anaerobic digestion (AD), especially due to its high content of biodegradable organic matter. To inoculate the reactors, sludge is usually used. The sludge should ideally have good sedimentation and specific methanogenic activity (SMA), which is typical for granular sludge. However, in a Latin American context, the most available and accessible sludges are flocculants with low sedimentation and SMA. Applying technological surveillance between 1975 and 2017, using multicriteria analysis techniques such as analytical hierarchy process (AHP), and consulting with international and national experts, we observed that there were few studies, compared to published studies on the substrates that focused on improving inoculum quality through conditioning to improve its characteristics and maximize methane production. The inoculum-conditioning methodologies identified were grouped into five categories, being the main strategy the addition of nutrients followed by anaerobic digestion with an easily degradable substrate. However, extension of technological surveillance is recommended by incorporating the results published from significant events in the field of anaerobic digestion, such as the Latin American Workshop and Symposium on Anaerobic Digestion and the World Congress on Anaerobic Digestion.

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“…The biochemical methane potential (BMP) assay has been widely used to test the anaerobic degradability of different organic wastes, and it is considered a suitable method to compare the degradability of different substrates ( Lavergne et al, 2018 ). This test enables the assessment of the decomposability and the CH 4 conversion efficiency of diverse organic materials.…”

Section: Introductionmentioning

confidence: 99%

Analysis of biogas production from sewage sludge combining BMP experimental assays and the ADM1 model

Rocha,

Lazarino,

Oliveira

et al. 2024

PeerJ

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The Anaerobic Digestion Model No. 1 (ADM1) was employed to simulate methane (CH4) production in an anaerobic reactor (AR), and the associated bench-scale biochemical methane potential (BMP) assay, having sewage sludge (SWS) from a municipal wastewater treatment plant (WWTP) as feedstock. The SWS presented the following physical-chemical characteristics: pH (7.4–7.6), alkalinity (2,382 ± 100 mg CaCO3 L−1), tCOD (21,903 ± 1,000 mg L−1), TOC (895 ± 100 mg L−1), TS, TVS, and VSS (2.0%, 1.1%, and 0.8%, respectively). The BMP assay was conducted in six replicates under anaerobic mesophilic conditions (37 ± 0.1°C) for 11 days with a CH4 yield registered of 137.6 ± 6.39 NmL CH4 or 124 ± 6.72 CH4 g−1 VS−1. When the results obtained with the BMP bench-scale reactors were compared to the output generated with computational data by the ADM1 model having as input data the same initial sewage tCOD, similar cumulative CH4 production curves were obtained, indicating the accuracy of the ADM1 model. This approach allowed the characterization of the sludge and estimation of its biogas production potential. The combination of BMP assays, experimental data, and ADM1 model simulations provided a framework for studying anaerobic digestion (AD) processes.

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A need for a standardization in anaerobic digestion experiments? Let's get some insight from meta-analysis and multivariate analysis

Cited by 11 publications

References 26 publications

Similar Methanogenic Shift but Divergent Syntrophic Partners in Anaerobic Digesters Exposed to Direct versus Successive Ammonium Additions

Similar Methanogenic Shift but Divergent Syntrophic Partners in Anaerobic Digesters Exposed to Direct versus Successive Ammonium Additions

Selection of inocula conditioning methodologies for the anaerobic digestion of food waste

Analysis of biogas production from sewage sludge combining BMP experimental assays and the ADM1 model

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