Stable-isotopic and metagenomic analyses reveal metabolic and microbial link of aerobic methane oxidation coupled to denitrification at different O2 levels

Abstract

How to cite:Please refer to published version for the most recent bibliographic citation information. If a published version is known of, the repository item page linked to above, will contain details on accessing it.

RNA stable isotope probing and high‐throughput sequencing to identify active microbial community members in a methane‐driven denitrifying biofilm

“…Hyphomicrobium spp. were also detected in other studies investigating methane oxidation coupled to denitrification (Costa et al, 2000; Ma et al, 2020) and methane biofilters (López et al, 2018). In previous studies, it was hypothesized that Hyphomicrobium spp.…”

“…are type II methanotrophs and Methylocystis spp. or closely related bacteria were reported in other studies investigating aerobic methane oxidation coupled with denitrification (Beck et al, 2013; Lee et al, 2019; Ma et al, 2020) and the biofiltration of methane (La et al, 2018; López et al, 2018). Beck et al (2013) found that Methylocystaceae (Family of Methylocystis ) increased in abundance in response to methane in aerobic microcosm incubations.…”

“…in a denitrifying sequencing batch reactor (Baytshtok et al, 2009). They were also detected by Ma et al (2020) in their study of aerobic methane oxidation coupled to denitrification. Although these bacteria make up a small proportion of the community in the current study, they may play an important role in the AME-D process.…”

Iron-Activated Carbon Systems to Enhance Aboriginal Aerobic Denitrifying Bacterial Consortium for Improved Treatment of Micro-Polluted Reservoir Water: Performances, Mechanisms, and Implications

“…The ultra-micro size of Polynucleobacter is probably the cause for its high abundance with respect to the total quantity of microbes. Hyphomicrobium, Methylotenera, and Methyloversatilis were known as major players in aerobic denitrification systems that were supplied with methanol as a carbon source. − Hyphomicrobium was also reported as the manganese oxidizing bacteria that was found in a biofilter developed for Fe, Mn, and As­(III) removal and identified as the main microbe responsible for Fe and Mn-oxidation in a slow sand filter . Therefore it showed a relatively high abundance in iron-modified systems.…”

A municipal wastewater treatment plant “drinking beer” for reduction of cost and carbon emission

“…However, BDPs are more expensive, 6,21 and methane is susceptible to oxygen concentrations. 22 Although natural cellulose-based sources have been studied as potential alternatives, 23 the initial and saturated carbon release rates vary signicantly, and the effect aer addition is unstable, making them unsuitable for widespread application. 24 Therefore, a lowcost, high-performance, and environmentally friendly external carbon source is necessary.…”