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Substrate loading rates conducive to nitritation in entrapped cell reactors: performance and microbial community structure
This study aimed to elucidate the boundaries of ammonia and organic loading rates that allow for nitritation in continuous flow...
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Niche differentiation of comammox Nitrospira and canonical nitrifiers in riparian wetland ecosystems around Taihu Lake
PurposeComplete ammonia oxidation (comammox) overturned the traditional two-step nitrification theory. Newly discovered comammox Nitrospira and...
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DNA stable isotope probing revealed no incorporation of 13CO2 into comammox Nitrospira but ammonia-oxidizing archaea in a subtropical acid soil
PurposeThe recently discovered complete ammonia oxidizers (comammox Nitrospira ) challenged our concept of the whole nitrification process, i.e.,...
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Comammox Nitrospira clade A recovers faster than clade B after cyanobacteria outbreak in the Three Gorges tributary, China
PurposeComammox Nitrospira can complete nitrification independently, and they are important participants in the nitrogen cycle. In this study, we...
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Negative effects of rare earth oxide nanoparticles of La2O3, Nd2O3, and Gd2O3 on the ammonia-oxidizing microorganisms
PurposeNanoparticles released into soil environment potentially impact microorganisms, which furtherly disturb terrestrial biogeochemical cycles....
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Community diversity and distribution of ammonia-oxidizing archaea in marsh wetlands in the black soil zone in North-east China
Since its first detection, ammonia-oxidizing archaea (AOA) have been proven to be ubiquitous in aquatic and terrestrial ecosystems. In this study,...
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Anaerobic ammonia-oxidizing bacteria in tropical bioaugmented zero water exchange aquaculture ponds
Bioaugmented zero water exchange aquaculture production systems (ZWEAPS) maintained with minimal or no water exchange prevent the ammonia...
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Biological and chemical nitrification inhibitors exhibited different effects on soil gross N nitrification rate and N2O production: a 15N microcosm study
Nitrification inhibitors (NIs) are considered as an effective strategy for reducing nitrification rate and related environmental nitrogen (N) loss....
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Novel Media and Unit Configurations in Advanced Constructed Wetlands: Case Studies Under Hot Climate in Thailand
At a household with limited space for installation of onsite wastewater treatment system, a new attribute for the constructed wetland (CW) systems is...
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Growth and N2O production of Nitrosocosmicus clade in agricultural soil when responding to high ammonium inputs
PurposeIn recent years, some ammonia-oxidizing archaea (AOA) species from the Nitrosocosmicus clade have been suggested to be ammonium tolerant,...
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Biochar and organic fertilizer changed the ammonia-oxidizing bacteria and archaea community structure of saline–alkali soil in the North China Plain
PurposeThe application of a large amount of inorganic nitrogen (N) fertilizer resulted in an increasing N loss. It is an effective practice that...
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Exploring the mechanism of a novel recirculating aquaculture system based on water quality parameters and bacterial communities
To mitigate the serious environmental problems caused by aquaculture wastewater discharge, the development of improved aquaculture systems with more...
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Overlooked nitrogen-cycling microorganisms in biological wastewater treatment
Nitrogen-cycling microorganisms play key roles at the intersection of microbiology and wastewater engineering. In addition to the well-studied...
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Anammox Cell Biology, Metabolism, Growth, and Genetics
One of the most recent contributions to the biogeochemical nitrogen cycle is anaerobic ammonium-oxidizing (anammox) bacteria. Anaerobic...
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Variations in bacterial and archaeal community structure and diversity along the soil profiles of a peatland in Southwest China
As bacteria and archaea are key components in the ecosystem, information on their dynamics in soil profiles is important for understanding the...
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Nitrification inhibitor 1-octyne inhibits growth of comammox Nitrospira but does not alter their community structure in an acidic soil
PurposeThe compounds 1-octyne and 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide (PTIO) are frequently used as nitrification inhibitors for...
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Comparative biotic and abiotic effects on greenhouse gas emissions from agricultural ecosystems: application of straw or biochar?
Farmland has become a significant contributor to greenhouse gas (GHG) emissions, and research has shown that the addition of straw or biochar may be...
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Anaerobic Ammonium Oxidation Process
Anaerobic ammonia oxidation (anammox) process has attracted widespread attention in wastewater treatment due to its significant engineering and...
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Challenges and Operational Strategies to Achieve Partial Nitrification in Biological Wastewater Treatment: A Review
Partial nitritation is a promising technology for wastewater treatment systems and, in symbiosis with other nitrogen removal approaches (i.e.,...
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Review of ammonia-oxidizing bacteria and archaea in freshwater ponds
Aquaculture ponds are simple and unique ecosystems, which are affected intensively by human activities. In this mini-review, we focus our attention...
