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Publications (14)
Shifting from ammonia removal to recovery is the current strategy in wastewater treatment management. We recently developed a microaerophilic activated sludge system for retaining ammonia whereas removing organic carbon with minimal N2O emissions. A comprehensive understanding of nitrogen metabolisms in the system is essential to optimize system pe...
Shifting from ammonia removal to recovery is the current strategy in wastewater treatment management. We recently developed a microaerophilic activated sludge (MAS) system for retaining ammonia while removing organic carbon with minimal N2O emissions. A comprehensive understanding of nitrogen metabolisms in the MAS system is essential to optimize s...
N2O-reducing bacteria have been examined and harnessed to develop technologies that reduce the emission of N2O, a greenhouse gas produced by biological nitrogen removal. Recent investigations using omics and physiological activity approaches have revealed the ecophysiologies of these bacteria during nitrogen removal. Nevertheless, their involvement...
Here, we report a genome sequence of Afipia carboxidovorans strain SH125 isolated from an anammox reactor. This facultative anaerobic strain possesses the clade I-type nitrous oxide (N2O) reductase gene, devoid of nitrite- and nitric oxide reductase genes. Deciphering the genome will help explore N2O reducers instrumental in N2O mitigation.
Nitrification is mediated by numerous different microorganisms, but knowledge of their ecophysiologies is insufficient. Leachate in the late stages of landfill operation provides a brackish environment with a high ammonia concentration, and methanol is added as an electron donor for denitrification. Such a unique environment may contain novel nitri...
A complete genome sequence of Marinobacter shengliensis D49 in the class Gamma-proteobacteria was isolated from activated sludge treating landfill leachate. The genome encodes the functional genes for the biosynthesis of ectoine (ectABC), a compatible solute for cosmetics. Deciphering the genome helps pave the way for ectoine production by the isol...
A transition to ammonia recovery from wastewater has started; however, a technology for sustainable nitrogen retention in the form of ammonia and organic carbon removal is still in development. This study validated a microaerophilic activated sludge (MAS) system to efficiently retain ammonia from high-strength nitrogenous wastewater. The MAS is bas...
A transition to ammonia recovery from wastewater has started; however, a technology for sustainable nitrogen retention in the form of ammonia is still in development. This study validated a microaerophilic activated sludge (MAS) system to efficiently retain ammonia from high-strength nitrogenous wastewater. The MAS is based on conventional activate...
Upcycling wastes into valuable products by mixed microbial communities has recently received considerable attention. Sustainable production of high-value substances from one-carbon (C1) compounds, e.g., methanol supplemented as an external electron donor in bioreactors for wastewater treatment, is a promising application of upcycling. This study un...
Using metagenome sequencing, a nearly complete genome sequence was retrieved for the uncultured Methyloceanibacter sp. strain A49, recovered from an activated sludge system used for landfill leachate treatment at a closed landfill site. The total size and encoded sequences are 3,407,434 bp and 3,280 genes, respectively.
We report a complete genome sequence of Methylosinus sp. strain C49, a methane-oxidizing bacterium (MOB) in the class Alphaproteobacteria , isolated from MOB-enriched biomass. The genome encodes the functional genes for methane oxidation ( pmoA ) and polyhydroxyalkanoate (PHA) biosynthesis ( phaABC ). Deciphering the genome will help research towar...
Methane-oxidizing bacteria (MOB) possess the metabolic potential to assimilate the highly potent greenhouse gas, CH4, and can also synthesize valuable products. Depending on their distinct and fastidious metabolic pathways, MOB are mainly divided into Type I and Type II; the latter are known as producers of polyhydroxyalkanoate (PHA). Despite the m...
