Tackling ammonia inhibition for efficient biogas production from chicken manure: Status and technical trends in Europe and China

Fuchs, Werner; Wang, Xuemei; Gabauer, Wolfgang; Ortner, Markus; Li, Zifu

doi:10.1016/j.rser.2018.08.038

Cited by 127 publications

(62 citation statements)

References 135 publications

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“…With regard to ammonia, the approaches to mitigate inhibition always rely on dilution, co-digestion with C-rich substrates and stripping, or membrane extraction of ammonia from the fermenter. However, these measures usually compromise the process efficiency or increase the capital investment and operational costs [13]. The AD process turns out to be very complex and comprises four main steps: hydrolysis, acidogenesis, acetogenesis and methanogenesis, with a variety of microbiota to mediate each step [14].…”

Section: Introductionmentioning

confidence: 99%

Biochemical Conversion and Microbial Community in Response to Ternary pH Buffer System during Anaerobic Digestion of Swine Manure

et al. 2018

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The ternary pH buffer system with ammonia-carbonates-volatile fatty acids (VFAs) is essential to anaerobes for bioenergy recovery via anaerobic digestion (AD). However, ammonia and VFAs are recognized as potential inhibitors that depress methanogenesis. In this study, biochemical conversion and the microbial community in batch AD at total solid (TS) from 4% to 14% were investigated to reveal their response to the ternary pH buffer system. The rapid ammonia release, probably promoted by Anaerosphaera and Eubacterium inferred from the concurrent peak of their relative abundance, triggered total ammonia (TAN) inhibition with the accumulation of VFAs in the start-up stage of high solid AD (HSAD, TS ≥ 8%). Along with evolution of the microbial community to resist high TAN and VFAs, methanogenesis recovered with improved degradation of VFAs and reduction of COD. When exposed to 3500 mg·N·L−1 TAN at 8% TS, aceticlastic Methanosarcina became dominant first and then together with hydrogenotrophic Methanoculleus, achieved the optimal biochemical conversion. While in HSAD at 11–14% TS, the main pathway of methanogenesis appeared to have shifted from the aceticlastic pathway to the hydrogenotrophic pathway, as inferred by changes in the relative abundance of methanogens, and this could have been induced by the increasing concentration of high free ammonia (FAN, ≥588 mg·N·L−1). Although the anaerobes had acclimatized to high TAN, the propionate-oxidizing bacteria and acetate-oxidizing bacteria might have again been inhibited by high FAN, frustrating the H2 supply for FAN-tolerant Methanoculleus and causing an 8.2–11.3% depression of COD reduction (mainly propionate residual).

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Section: Introductionmentioning

confidence: 99%

Biochemical Conversion and Microbial Community in Response to Ternary pH Buffer System during Anaerobic Digestion of Swine Manure

et al. 2018

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“…Making solid manure available would largely extend both the biomass potential and the environmental benefits, however it faces obstacles due to high contents of lignocellulose in the case of solid cattle and pig manure and high nitrogen concentrations in the case of poultry manure. Hence, research is done and further needed on pretreatment of solid manure and avoiding ammonia inhibition when using poultry manure [72,83]. Since livestock residues accrue in different amounts, research is required to design supply chains and biogas production facilities from household scale to large central biogas plants [84].…”

Section: Unlocking Residuesmentioning

confidence: 99%

The Future Agricultural Biogas Plant in Germany: A Vision

et al. 2019

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After nearly two decades of subsidized and energy crop-oriented development, agricultural biogas production in Germany is standing at a crossroads. Fundamental challenges need to be met. In this article we sketch a vision of a future agricultural biogas plant that is an integral part of the circular bioeconomy and works mainly on the base of residues. It is flexible with regard to feedstocks, digester operation, microbial communities and biogas output. It is modular in design and its operation is knowledge-based, information-driven and largely automated. It will be competitive with fossil energies and other renewable energies, profitable for farmers and plant operators and favorable for the national economy. In this paper we discuss the required contribution of research to achieve these aims.

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“…Anaerobic digestion recovers energy from wastewater and organic waste, produced over 4.3 × 10 8 m 3 (i.e., 43 bcm) biogas in 2018, as 7.8% of renewable energies production in Europe. The two key inhibitors of anaerobic digestion facilities identified as acidification (bcm from food waste) and ammonia inhibition (43 bcm/y from manure), which all directly linked with proton conditions (Fuchs et al, 2018). Proton also participated in interspecies hydrogen transfer of electron by electron released from hydrogenases (Wu et al, 2020).…”

Section: Introductionmentioning

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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Tackling ammonia inhibition for efficient biogas production from chicken manure: Status and technical trends in Europe and China

Cited by 127 publications

References 135 publications

Biochemical Conversion and Microbial Community in Response to Ternary pH Buffer System during Anaerobic Digestion of Swine Manure

Biochemical Conversion and Microbial Community in Response to Ternary pH Buffer System during Anaerobic Digestion of Swine Manure

The Future Agricultural Biogas Plant in Germany: A Vision

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

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