AIMC Topic: Nitrification

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Predicting Toxicity toward Nitrifiers by Attention-Enhanced Graph Neural Networks and Transfer Learning from Baseline Toxicity.

Environmental science & technology Feb 27, 2025
Assessing chemical environmental impacts is critical but challenging due to the time-consuming nature of experimental testing. Graph neural networks (GNNs) support superior prediction performance and mechanistic interpretation of (eco-)toxicity data,...
Nitrification Graph Neural Networks Neural Networks, Computer
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Enhanced prediction of partial nitrification-anammox process in wastewater treatment by developing an attention-based deep learning network.

Journal of environmental management Jan 9, 2025
In the process of partial nitrification and anaerobic ammonia oxidation (anammox) for nitrogen removal, the process offers simple metabolic pathways, low operating costs, and high nitrogenous loading rates. However, since the partial nitrification-an...
Wastewater Oxidation-Reduction Bioreactors Waste Disposal, Fluid Deep Learning Ammonia Nitrification Nitrogen
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Achieving partial nitrification by inhibiting the activity of Nitrospira-like bacteria under high-DO conditions in an intermittent aeration reactor.

Journal of environmental sciences (China) Oct 6, 2016
It is generally accepted that a low dissolved oxygen (DO) concentration is more beneficial for achieving partial nitrification than high-DO. In this study, partial nitrification was not established under low-DO conditions in an intermittent aeration ...
Nitrification Oxidation-Reduction Ammonia Bioreactors Wastewater Waste Disposal, Fluid Bacteria
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Artificial Intelligence for the Evaluation of Operational Parameters Influencing Nitrification and Nitrifiers in an Activated Sludge Process.

Microbial ecology Feb 23, 2016
Nitrification at a full-scale activated sludge plant treating municipal wastewater was monitored over a period of 237 days. A combination of fluorescent in situ hybridization (FISH) and quantitative real-time polymerase chain reaction (qPCR) were use...
Temperature Nitrobacter Artificial Intelligence Bacteria Nitrification Sewage Real-Time Polymerase Chain Reaction Models, Theoretical Waste Management Ammonia In Situ Hybridization, Fluorescence DNA, Bacterial
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Characteristics of pellets with immobilized activated sludge and its performance in increasing nitrification in sequencing batch reactors at low temperatures.

Journal of environmental sciences (China) Oct 28, 2015
Immobilized pellets obtained by means of entrapping activated sludge in waterborne polyurethane were successfully adapted in ammonium (NH4(+)-N) synthetic wastewater. Its physicochemical characteristics were determined using scanning electron microsc...
Wastewater Waste Disposal, Fluid Cold Temperature Nitrification Sewage Bioreactors
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Intelligent FA/FNA alternating strategy for nitrite-oxidizing bacteria inhibition: Data-driven prediction and process control.

Journal of environmental management Jun 1, 2025
Alternating treatment with free ammonia (FA) and free nitrous acid (FNA) is an effective strategy to inhibit nitrite-oxidizing bacteria (NOB) in partial nitrification (PN) process. However, the current alternating treatment relies on manual assessmen...
Oxidation-Reduction Bioreactors Support Vector Machine Nitrites Nitrous Acid Nitrification Ammonia Bacteria
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[Rapid Start-up of Simultaneous Nitrification and Denitrification Coupled Phosphorus Removal Process and Its Performing Characteristics].

Huan jing ke xue= Huanjing kexue Nov 1, 2015
In this study, simultaneous nitrification and denitrification (SND) coupled Phosphorus removal process through gradually decreasing DO concentration was investigated by treating wastewater with a low COD/TN ratio (C/N = 3 : 1-4: 1) in a sequencing ba...
Nitrogen Denitrification Phosphorus Waste Disposal, Fluid Sewage Biological Oxygen Demand Analysis Nitrification Bioreactors Wastewater
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