Results 201 to 210 of about 74,161 (253)

Ammonia Monooxygenase-Mediated Cometabolic Biotransformation and Hydroxylamine-Mediated Abiotic Transformation of Micropollutants in an AOB/NOB Coculture.

Environmental Science and Technology, 2018
Biotransformation of various micropollutants (MPs) has been found to be positively correlated with nitrification in activated sludge communities. To further elucidate the roles played by ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria ...
Yaochun Yu, P. Han, Lijun Zhou, Zhong Li, M. Wagner, Y. Men   +5 more
semanticscholar   +1 more source

Characterization and quantification of ammonia-oxidizing archaea (AOA) and bacteria (AOB) in a nitrogen-removing reactor using T-RFLP and qPCR

Applied Microbiology and Biotechnology, 2010
Using ammonia monooxygenase α-subunit (amoA) gene and 16S rRNA gene, the community structure and abundance of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in a nitrogen-removing reactor, which was operated for five phases, were ...
Tong Zhang
exaly   +2 more sources

Simulated distribution nitrification: Nitrification Index evaluation and viable AOB

Journal AWWA, 2013
Lab‐scale reactors were used to evaluate the impact of simultaneously increasing temporal influent monochloramine (NH2Cl) concentrations (0.0 to 3.2 mg/L Cl2) and chlorine‐to‐nitrogen mass ratios (0:1 to 3.2:1) on nitrification, allowing evaluation of the recently proposed Nitrification Index (NI) for chloraminated drinking water distribution system ...
Karen A. Schrantz, Jonathan G. Pressman, David G. Wahman   +2 more
openaire   +1 more source

Low AOB Component Loads Derivation to Implement MH-60R HUMS

Proceedings of the Vertical Flight Society 76th Annual Forum, 2020
Presently the fatigue lives of MH-60R dynamic components and airframe are based on a usage spectrum developed using pilot surveys. In order to better define the usage spectrum and to extend component and airframe fatigue life, the Health & Usage Spectrum (HUMS) System was installed on the U.S. Navy MH- 60R Rotorcraft.
Daniel Liebschutz, Suresh Moon
openaire   +1 more source

Quick start-up and stable operation of a one-stage deammonification reactor with a low quantity of AOB and ANAMMOX biomass.

Science of the Total Environment, 2019
In this study, a quick start-up of one-stage deammonification in an immobilized aerobic ammonium oxidizing bacteria (AOB) and anoxic ammonium oxidizing (ANAMMOX) bacteria up-flow reactor (IAAR) was successfully achieved.
Yifeng Yang, Yuan Li, Zaoli Gu, Feng Lu, S. Xia, S. Hermanowicz   +5 more
semanticscholar   +1 more source

Community structure and transcript responses of anammox bacteria, AOA, and AOB in mangrove sediment microcosms amended with ammonium and nitrite

Applied Microbiology and Biotechnology, 2013
Meng Li, Ji-Dong Gu
exaly   +2 more sources

Quantitative Analyses of Ammonia-oxidizing Archaea (AOA) and Ammonia-oxidizing Bacteria (AOB) in Fields with Different Soil Types

Microbes and Environments, 2011
Masahito Hayatsu, Hiroko Akiyama
exaly   +2 more sources

Approach Wood AOB, Fife: Archaeological Mitigation Data Structure Report

2022
The study area comprised a 30m by 20m rectangular area orientated on its long axis NE to SW with a 10m by 10m area in the W corner omitted. This area encompassed the conjectured footprint of the Auxiliary Operations Bunker (AOB) (from what could be discerned from visible surface elements of the AOB), the location of the stump of the transmitter tree ...
openaire   +1 more source

Factors driving the distribution and role of AOA and AOB in Phragmites communis rhizosphere in riparian zone

Journal of Basic Microbiology, 2019
Ammonia oxidation, mainly driven by ammonia‐oxidizing archaea (AOA) and bacteria (AOB), plays an important role in determining the rate of nitrification in riparian zones.
Xiaoming Wang, Shanyun Wang, Guoshuai Shi, Weidong Wang, G. Zhu   +4 more
semanticscholar   +1 more source

Pinpointing wastewater and process parameters controlling the AOB to NOB activity ratio in sewage treatment plants.

Water Research, 2017
Even though nitrification/denitrification is a robust technology to remove nitrogen from sewage, economic incentives drive its future replacement by shortcut nitrogen removal processes.
D. Seuntjens, Mofei Han, F. Kerckhof, N. Boon, A. Al‐Omari, I. Takács, F. Meerburg, C. De Mulder, B. Wett, C. Bott, S. Murthy, J. M. Carvajal Arroyo, H. De Clippeleir, S. Vlaeminck   +13 more
semanticscholar   +1 more source