Unraveling the literature chaos around free ammonia inhibition in anaerobic digestion

Capson-Tojo, Gabriel; Moscoviz, Roman; Astals, Sergi; Robles, Ángel; Steyer, Jean-Philippe

doi:10.1016/j.rser.2019.109487

Cited by 189 publications

(88 citation statements)

References 98 publications

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“…This fact allows AMA to grow faster and thus be more competitive for acetate than SAOB [111]. However, AMA were found to be more sensitive towards several inhibitory conditions, such as very high ammonia levels, allowing SAOB and HMA to take over [112]. In this study it could be shown that very low pH levels as well as high phosphate concentrations might also induce a shift from AM to SAO + HM.…”

Section: Effect Of Ph On Physiochemical and Microbiological Aspects Omentioning

confidence: 60%

pH and Phosphate Induced Shifts in Carbon Flow and Microbial Community during Thermophilic Anaerobic Digestion

et al. 2020

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pH is a central environmental factor influencing CH4 production from organic substrates, as every member of the complex microbial community has specific pH requirements. Here, we show how varying pH conditions (5.0–8.5, phosphate buffered) and the application of a phosphate buffer per se induce shifts in the microbial community composition and the carbon flow during nine weeks of thermophilic batch digestion. Beside monitoring the methane production as well as volatile fatty acid concentrations, amplicon sequencing of the 16S rRNA gene was conducted. The presence of 100 mM phosphate resulted in reduced CH4 production during the initial phase of the incubation, which was characterized by a shift in the dominant methanogenic genera from a mixed Methanosarcina and Methanoculleus to a pure Methanoculleus system. In buffered samples, acetate strongly accumulated in the beginning of the batch digestion and subsequently served as a substrate for methanogens. Methanogenesis was permanently inhibited at pH values ≤5.5, with the maximum CH4 production occurring at pH 7.5. Adaptations of the microbial community to the pH variations included shifts in the archaeal and bacterial composition, as less competitive organisms with a broad pH range were able to occupy metabolic niches at unfavorable pH conditions.

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Section: Effect Of Ph On Physiochemical and Microbiological Aspects Omentioning

confidence: 60%

pH and Phosphate Induced Shifts in Carbon Flow and Microbial Community during Thermophilic Anaerobic Digestion

et al. 2020

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“…The FAN concentration (eq. (4)) was calculated by ideal equilibria method (FAN) and modified Davis method (FAN r ), respectively (Astals et al, 2018;Capson-Tojo et al, 2020;Wangersky, 1994). The activity coefficient of monovalent ions γ equals to 1 for ideal FAN, or equals to eq.…”

Section: Physicochemical Analysismentioning

confidence: 99%

Effect of proton pump inhibitor on microbial community, function, and kinetics in anaerobic digestion with ammonia stress

Zhang

Jaegher

et al. 2021

Bioresource Technology

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“…Knobel and Lewis (2002) also considered that the aqueous phase is a non-ideal solution. Indeed, few authors have considered non-ideality in their calculations, which represents a source of inaccuracy (Capson-Tojo et al, 2020;Patón et al, 2018;Solon et al, 2015).…”

Section: Metal Precipitationmentioning

confidence: 99%

Anaerobic treatment of sulfate-rich wastewaters: process modeling and control

Steyer¹,

Bernet²,

Lens³

et al. 2020

Environmental Technologies to Treat Sulphur Pollution: Principles and Engineering

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A variety of anthropogenic activities, especially at industrial level, generate wastewater streams rich in sulfate which, if improperly treated, can cause health, social and environmental problems (Serrano et al., 2020). These industrial activities include food production (e.g. edible oil, seafood-processing), fermentation industry, tanneries, coal-burning power plants, paper and pulp industry, mining and metallurgical processes. Additionally, in some regions (e.g. Hong Kong), the use of seawater for toilet flushing to alleviate the pressure on potable water has increased the sulfate concentration in municipal sewage (Li et al., 2018; Wu et al., 2016). Anaerobic digestion (AD) is a well-established technology to transform municipal and industrial organic-rich wastewaters into renewable energy in the form of methane-rich biogas. Besides energy recovery, AD presents other important advantages compared to aerobic treatment such as low sludge production and low energy requirements (Puyol et al., 2017). AD is also a suitable technology to treat organic-rich municipal and industrial wastewaters containing sulfate. However, a high sulfate content can affect the AD process performance and feasibility due to (i) the competition for easily biodegradable organic matter (e.g. short chain fatty acids, hydrogen) between sulfate reducers and anaerobic microorganisms (Cassidy et al., 2015; Kalyuzhnyi et al., 1998), (ii) the generation of H 2 S, the product of sulfate

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Unraveling the literature chaos around free ammonia inhibition in anaerobic digestion

Cited by 189 publications

References 98 publications

pH and Phosphate Induced Shifts in Carbon Flow and Microbial Community during Thermophilic Anaerobic Digestion

pH and Phosphate Induced Shifts in Carbon Flow and Microbial Community during Thermophilic Anaerobic Digestion

Effect of proton pump inhibitor on microbial community, function, and kinetics in anaerobic digestion with ammonia stress

Anaerobic treatment of sulfate-rich wastewaters: process modeling and control

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