Wet biowaste digestion: ADM1 model improvement by implementation of known genera and activity of propionate oxidizing bacteria

Uhlenhut, Frank; Schlüter, Kathrin; Gallert, Claudia

doi:10.1016/j.watres.2017.11.012

Cited by 35 publications

(11 citation statements)

References 22 publications

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“…The use of the ADM1, with the first-order rate constant assigned for disintegration (K dis ) and hydrolysis (K hyd ) as 0.5 day −1 and 10 day −1 , respectively, reflected the steady-state full-scale anaerobic digestion data collected from two different sized wastewater treatment plants with satisfactory level of accuracy [120]. The ADM1 is used extensively for modeling anaerobic digestion of solid wastes and has been studied and modified to reflect different physico-chemical and biochemical processes in the anaerobic digestion process [121][122][123][124]. The ADM1 models the disintegration and hydrolysis steps in anaerobic digestion following a first-order kinetics and assuming that their rates do not depend on disintegration/hydrolytic biomass concentration.…”

Section: Kinetics Of Anaerobic Digestionmentioning

confidence: 99%

Influence of Pre-Hydrolysis on Sewage Treatment in an Up-Flow Anaerobic Sludge BLANKET (UASB) Reactor: A Review

Rajagopal

Choudhury

Anwar

et al. 2019

Water

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The up-flow anaerobic sludge blanket (UASB) process has emerged as a promising high-rate anaerobic digestion technology for the treatment of low- to high-strength soluble and complex wastewaters. Sewage, a complex wastewater, contains 30–70% particulate chemical oxygen demand (CODP). These particulate organics degrade at a slower rate than the soluble organics found in sewage. Accumulation of non-degraded suspended solids can lead to a reduction of active biomass in the reactor and hence a deterioration in its performance in terms of acid accumulation and poor biogas production. Hydrolysis of the CODP in sewage prior to UASB reactor will ensure an increased organic loading rate and better UASB performance. While single-stage UASB reactors have been studied extensively, the two-phase full-scale treatment approach (i.e., a hydrolysis unit followed by an UASB reactor) has still not yet been commercialized worldwide. The concept of treating sewage containing particulate organics via a two-phase approach involves first hydrolyzing and acidifying the volatile suspended solids without losing carbon (as methane) in the first reactor and then treating the soluble sewage in the UASB reactor. This work reviews the available literature to outline critical findings related to the treatment of sewage with and without hydrolysis before the UASB reactor.

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Section: Kinetics Of Anaerobic Digestionmentioning

confidence: 99%

Influence of Pre-Hydrolysis on Sewage Treatment in an Up-Flow Anaerobic Sludge BLANKET (UASB) Reactor: A Review

Rajagopal

Choudhury

Anwar

et al. 2019

Water

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“…4,1, Konzentrationen der Biomassefraktionen X fa , X c4 , X pro , X ac und X h2 gehen gegen 0, lediglich X su und X aa sind im System vorhanden). Daher wurde im ersten Schritt der Optimierung eine Sensitivitätsanalyse und Anpassung der relevanten Modellparameter durchgeführt (nähere Einzelheiten siehe ). Auf diese Weise war eine gute Anpassung der simulierten und gemessenen Biogasproduktion und ‐zusammensetzung erreichbar.…”

Section: Ergebnisse Und Diskussionunclassified

“…B. Wachstums‐/Absterberaten, erweitert wurde. Die Struktur des modifizierten Modells ADM1xpro und die zugehörige Petersen‐Matrix finden sich in .…”

Section: Ergebnisse Und Diskussionunclassified

Modeling of Anaerobic Digestion Considering Biowaste by Syntrophic Propionate‐Oxidizing Bacteria

Uhlenhut

Schlüter

Gallert

2018

Chemie Ingenieur Technik

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Die anaerobe Vergärung von Bioabfällen erzeugt nachhaltig Bioenergie und verringert Umweltbelastungen. Die acetogene Gärphase wurde mit dem Anaerobic Digestion Model No. 1 (ADM1) modelliert, das um drei Gattungen Propionat-oxidierender Bakterien und zwei Varianten des Propionatabbaus, den Methyl-Malonyl-CoA-und C6-Dismutase-Weg, erweitert wurde. Die kinetischen Parameter für die anaerobe Propionat-Oxidation wurden mit definierten Trikulturen aus den drei Propionat-oxidierenden Gattungen mit hydrogenotrophen und acetotrophen methanogenen Archaea bestimmt und in das ADM1 implementiert, woraus das verbesserte Modell ADM1xpro resultierte.Schlagwörter: Biogas, Mathematische Modellierung, Nassvergärung von Bioabfällen, Propionat-oxidierende Bakterien Anaerobic digestion of biowaste allows a sustainable production of bioenergy and reduces environmental burden. The anaerobic digestion phase was modeled with Anaerobic Digestion Model No. 1 (ADM1), which was extended to include three genera of propionate-oxidizing bacteria and two routes of propionate degradation, namely methyl-malonyl CoA and C6-dismutation pathway. Kinetic parameters for anaerobic propionate oxidation were determined with defined tricultures of the three propionate-oxidizing genera together with hydrogenotrophic and acetotrophic methanogens and implemented into ADM1, resulting in the improved model ADM1xpro.

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“…Anaerobic digestion (AD) of biowaste not only reduces the environmental burden but has a key role in sustainable energy supply [4]. The literature points out that, among the biological treatments of the organic fraction of MSW, AD has the best environmental and economic performance [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Anaerobic Digestate from Biowaste to High-Value Bioproducts: A Review

Tumaševičiūtė

Ignatavičius

2019

Innovations-Sustainability-Modernity-Openness Conference (ISMO’19)

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Vital research has been carried out on the sustainable organic fraction of municipal solid waste (OFMSW) stream management in the last five years. In addition to the traditional approach to reducing its environmental side effects, considering OFMSW as a feedstock to produce bioproducts, such as enzymes, bioplastics, biopesticides, and other high-value products, represents a key component in the transformation of OFMSW treatment plants (biogas or mechanical–biological treatment (MBT) plants) into biorefineries. This short review is intended to assess and analyze the current state of knowledge of OFMSW treatment technologies, suggest practical solution options, and identify future research and development needs to help promote more sustainable management of this underutilized and ever-growing waste stream.

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Wet biowaste digestion: ADM1 model improvement by implementation of known genera and activity of propionate oxidizing bacteria

Cited by 35 publications

References 22 publications

Influence of Pre-Hydrolysis on Sewage Treatment in an Up-Flow Anaerobic Sludge BLANKET (UASB) Reactor: A Review

Influence of Pre-Hydrolysis on Sewage Treatment in an Up-Flow Anaerobic Sludge BLANKET (UASB) Reactor: A Review

Modeling of Anaerobic Digestion Considering Biowaste by Syntrophic Propionate‐Oxidizing Bacteria

Valorization of Anaerobic Digestate from Biowaste to High-Value Bioproducts: A Review

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