Search Results - "Fotidis, Ioannis A."

Hydrogenotrophic methanogens are the key for a successful bioaugmentation to alleviate ammonia inhibition in thermophilic anaerobic digesters by Tian, Hailin, Yan, Miao, Treu, Laura, Angelidaki, Irini, Fotidis, Ioannis A.

“…[Display omitted] •A mechanism that drives a successful and fast bioaugmentation process is proposed.•Hydrogenotrophic methanogens are crucial for an efficient…”
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Bioaugmentation strategy for overcoming ammonia inhibition during biomethanation of a protein-rich substrate by Tian, Hailin, Mancini, Enrico, Treu, Laura, Angelidaki, Irini, Fotidis, Ioannis A.

“…High ammonia levels inhibit anaerobic digestion (AD) process and bioaugmentation with ammonia tolerant methanogenic culture is proposed to alleviate ammonia…”
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Acclimatization contributes to stable anaerobic digestion of organic fraction of municipal solid waste under extreme ammonia levels: Focusing on microbial community dynamics by Yan, Miao, Fotidis, Ioannis A., Tian, Hailin, Khoshnevisan, Benyamin, Treu, Laura, Tsapekos, Panagiotis, Angelidaki, Irini

“…•Ammonia levels up to 8.5 g NH4+-N/L didn’t inhibit anaerobic digestion of OFMSW.•Methanogenic dominance shifted from M. concilii to M. soligelidi.•M…”
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Acclimation to extremely high ammonia levels in continuous biomethanation process and the associated microbial community dynamics by Tian, Hailin, Fotidis, Ioannis A., Mancini, Enrico, Treu, Laura, Mahdy, Ahmed, Ballesteros, Mercedes, González-Fernández, Cristina, Angelidaki, Irini

“…[Display omitted] •Successful acclimation of methanogenic culture to extreme ammonia levels in CSTR.•Efficient utilization of a 3rd generation biomass as…”
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Enriched ammonia-tolerant methanogenic cultures as bioaugmentation inocula in continuous biomethanation processes by Fotidis, Ioannis A., Treu, Laura, Angelidaki, Irini

“…Many ammonia-rich biomass sources, such as manures and protein-rich substrates, are potential inhibitors of the anaerobic digestion (AD) process. It was…”
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Bioaugmentation as a Solution To Increase Methane Production from an Ammonia-Rich Substrate by Fotidis, Ioannis A, Wang, Han, Fiedel, Nicolai R, Luo, Gang, Karakashev, Dimitar B, Angelidaki, Irini

“…Ammonia-rich substrates inhibit the anaerobic digestion (AD) process and constitute the main reason for low energy recovery in full-scale reactors. It is…”
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Biogas upgrading and biochemical production from gas fermentation: Impact of microbial community and gas composition by Omar, Basma, El-Gammal, Maie, Abou-Shanab, Reda, Fotidis, Ioannis A., Angelidaki, Irini, Zhang, Yifeng

“…[Display omitted] •Anaerobic mixed culture for efficient biogas upgrading and bioproduction.•Biological conversion of CO2 and H2 into acetate through…”
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Effect of ammonium and acetate on methanogenic pathway and methanogenic community composition by Fotidis, Ioannis A., Karakashev, Dimitar, Kotsopoulos, Thomas A., Martzopoulos, Gerassimos G., Angelidaki, Irini

“…Abstract Methanogenesis from acetate (aceticlastic methanogenesis or syntrophic acetate oxidation (SAO) coupled with hydrogenotrophic methanogenesis) is the…”
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Simultaneous biogas upgrading and biochemicals production using anaerobic bacterial mixed cultures by Omar, Basma, Abou-Shanab, Reda, El-Gammal, Maie, Fotidis, Ioannis A., Kougias, Panagiotis G., Zhang, Yifeng, Angelidaki, Irini

“…A novel biological process to upgrade biogas was developed and optimised during the current study. In this process, CO2 in the biogas and externally provided…”
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Ammonia effect on hydrogenotrophic methanogens and syntrophic acetate-oxidizing bacteria by Wang, Han, Fotidis, Ioannis A., Angelidaki, Irini

“…Ammonia-rich substrates can cause inhibition on anaerobic digestion process. Syntrophic acetate-oxidizing bacteria (SAOB) and hydrogenotrophic methanogens are…”
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Insights into Ammonia Adaptation and Methanogenic Precursor Oxidation by Genome-Centric Analysis by Yan, Miao, Treu, Laura, Zhu, Xinyu, Tian, Hailin, Basile, Arianna, Fotidis, Ioannis A, Campanaro, Stefano, Angelidaki, Irini

“…Ammonia released from the degradation of protein and/or urea usually leads to suboptimal anaerobic digestion (AD) when N-rich organic waste is used. However,…”
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Novel bioaugmentation strategy boosted with biochar to alleviate ammonia toxicity in continuous biomethanation by Yan, Yixin, Yan, Miao, Ravenni, Giulia, Angelidaki, Irini, Fu, Dafang, Fotidis, Ioannis A.

“…[Display omitted] •Ammonia tolerant methanogens stored in gel for long period and used on demand.•Bioaugmentation boosted with Biochar enhanced the methane…”
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Effect of different ammonia sources on aceticlastic and hydrogenotrophic methanogens by Tian, Hailin, Fotidis, Ioannis A., Kissas, Konstantinos, Angelidaki, Irini

“…[Display omitted] •Urea hydrolysis increases reactor pH significantly more than ammonium chloride.•Urea is more toxic to methanogenic archaea than ammonium…”
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Metabolic responses and microbial community changes to long chain fatty acids: Ammonia synergetic co-inhibition effect during biomethanation by Wang, Han, Yan, Qun, Zhong, Xiaoqian, Angelidaki, Irini, Fotidis, Ioannis A.

“…[Display omitted] •Methanogens are more tolerant to LCFA compared to NH3 sole inhibition effect.•Hydrogenotrophic methanogens could tolerate the LCFA-NH3…”
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Bioaugmentation with an acetate-oxidising consortium as a tool to tackle ammonia inhibition of anaerobic digestion by Fotidis, Ioannis A., Karakashev, Dimitar, Angelidaki, Irini

“…•Methanogens are the “key players” of anaerobic digestion under high ammonia levels.•Bioaugmentation of SAO co-culture was not possible in a UASB reactor.•M…”
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Ammonia tolerant inocula provide a good base for anaerobic digestion of microalgae in third generation biogas process by Mahdy, Ahmed, Fotidis, Ioannis A., Mancini, Enrico, Ballesteros, Mercedes, González-Fernández, Cristina, Angelidaki, Irini

“…[Display omitted] •Efficient 3rd generation biogas production from protein-rich microalgae.•Synergistic co-digestion occurred only when “algae VS”/“cattle…”
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Ammonia–LCFA synergetic co-inhibition effect in manure-based continuous biomethanation process by Wang, Han, Fotidis, Ioannis A., Angelidaki, Irini

“…[Display omitted] •An “ammonia–LCFA synergetic co-inhibition” effect was identified.•With lipids as co-substrates it is not possible to overcome ammonia…”
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16s rRNA gene sequencing and radioisotopic analysis reveal the composition of ammonia acclimatized methanogenic consortia by Tian, Hailin, Treu, Laura, Konstantopoulos, Konstantinos, Fotidis, Ioannis A., Angelidaki, Irini

“…[Display omitted] •Acclimatization of methanogenic consortia to extreme ammonia levels.•Methanomassiliicoccus luminyensis consumes acetate to produce biomass…”
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Effect of ammonia on anaerobic digestion of municipal solid waste: Inhibitory performance, bioaugmentation and microbiome functional reconstruction by Yan, Miao, Treu, Laura, Campanaro, Stefano, Tian, Hailin, Zhu, Xinyu, Khoshnevisan, Benyamin, Tsapekos, Panagiotis, Angelidaki, Irini, Fotidis, Ioannis A.

“…[Display omitted] •The bioaugmentation with Methanoculleus sp. culture remarkably enhanced the methane yield by 21%•The volatile fatty acids were decreased by…”
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Osmoprotectants boost adaptation and protect methanogenic microbiome during ammonia toxicity events in continuous processes by Yan, Yixin, Yan, Miao, Angelidaki, Irini, Fu, Dafang, Fotidis, Ioannis A.

“…[Display omitted] •Osmoprotectants can alleviate ammonia inhibition in continuous AD.•Glycine betaine, MgCl2 and KCl recovered methane production by 68.9%,…”
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