RCEES OpenIR  > 大气环境与污染控制实验室
Exploring an alternative source of DIETer to mitigate ammonia inhibition of swine manure by inoculum treating brewery wastewater
Yu, Dawei; Chulu, Buhe; Yang, Min; Wei, Yuansong
2022-01
Source PublicationBIOMASS CONVERSION AND BIOREFINERY
ISSN2190-6815
Issue0Pages:1-12
AbstractBioaugmentation of ammonia inhibition was hindered by the availability of DIETer inoculum. The unacclimated ethanol-fed inoculum treating brewery wastewater was compared with ammonia acclimated inoculum to explore a way of alternative DIETer source. The overall performance, evolution of microbial community and metabolic functions were investigated. The unacclimated inoculum (194.71 +/- 1.98 mL CH4/VSadded) demonstrated feasible recovery in methane yield under ammonia stress (4000 mg/L) compared with acclimated inoculum (191.10 +/- 1.46 mL CH4/VSadded). The Methanothrix in the unacclimated group significantly (p < 0.05) decreased 31.60% than the acclimated group. Functional analysis indicated that the unacclimated Methanothrix-dominated inoculum had higher relative abundances in key enzymes of hydrogenotrophic methanogenesis. These statistical results revealed that the inoculum treating brewery wastewater serves as a firm foundation for the alternative DIETer inoculum source, broadening inoculums for mitigating ammonia stress. The threshold-type inhibition function also inspired a strategy to replace ethanol with ammonia (3000 similar to 8000 mg/L) for promoting DIETer, which could maintain direct interspecies electron transfer as the predominant working mode of interspecies electron exchange.
Department大气环境与污染控制实验室 ; 大气环境与污染控制实验室
KeywordANAEROBIC-DIGESTION BIOAUGMENTATION STRATEGY METHANE PRODUCTION METHANOGENESIS KINETICS INCREASE
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47405
Collection大气环境与污染控制实验室
Corresponding AuthorWei, Yuansong
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Dept Water Pollut Control Technol, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Ghent, Dept Math Modelling Stat & Bioinformat, BIOMATH, B-9000 Ghent, Belgium
Recommended Citation
GB/T 7714
Yu, Dawei,Chulu, Buhe,Yang, Min,et al. Exploring an alternative source of DIETer to mitigate ammonia inhibition of swine manure by inoculum treating brewery wastewater[J]. BIOMASS CONVERSION AND BIOREFINERY,2022(0):1-12.
APA Yu, Dawei,Chulu, Buhe,Yang, Min,&Wei, Yuansong.(2022).Exploring an alternative source of DIETer to mitigate ammonia inhibition of swine manure by inoculum treating brewery wastewater.BIOMASS CONVERSION AND BIOREFINERY(0),1-12.
MLA Yu, Dawei,et al."Exploring an alternative source of DIETer to mitigate ammonia inhibition of swine manure by inoculum treating brewery wastewater".BIOMASS CONVERSION AND BIOREFINERY .0(2022):1-12.
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