Evaluation of different nitrous oxide production models with four continuous long-term wastewater treatment process data series

Bioprocess and Biosystems Engineering
M SpérandioZhiguo Yuan

Abstract

Five activated sludge models describing N2O production by ammonium oxidising bacteria (AOB) were compared to four different long-term process data sets. Each model considers one of the two known N2O production pathways by AOB, namely the AOB denitrification pathway and the hydroxylamine oxidation pathway, with specific kinetic expressions. Satisfactory calibration could be obtained in most cases, but none of the models was able to describe all the N2O data obtained in the different systems with a similar parameter set. Variability of the parameters can be related to difficulties related to undescribed local concentration heterogeneities, physiological adaptation of micro-organisms, a microbial population switch, or regulation between multiple AOB pathways. This variability could be due to a dependence of the N2O production pathways on the nitrite (or free nitrous acid-FNA) concentrations and other operational conditions in different systems. This work gives an overview of the potentialities and limits of single AOB pathway models. Indicating in which condition each single pathway model is likely to explain the experimental observations, this work will also facilitate future work on models in which the two main N2O pathways acti...Continue Reading

References

May 5, 2005·Journal of Industrial Microbiology & Biotechnology·Ebtesam El-BestawyMohamed Fahmy El-Saka
Nov 26, 2008·Water Environment Research : a Research Publication of the Water Environment Federation·William C Hiatt, C P Leslie Grady
Aug 12, 2009·Water Research·Marlies J KampschreurMark C M van Loosdrecht
Dec 28, 2010·Methods in Enzymology·Lisa Y Stein
Nov 23, 2011·Biochemical Society Transactions·Kartik ChandranMark C M van Loosdrecht
Mar 1, 2012·Water Environment Research : a Research Publication of the Water Environment Federation·Dwight HouwelingHansruedi Siegrist
Jul 27, 2012·Biotechnology and Bioengineering·Bing-Jie NiSudhir Murthy
Jun 12, 2013·Environmental Science & Technology·Yingyu LawZhiguo Yuan
Jun 19, 2013·Environmental Science & Technology·Bing-Jie NiZhiguo Yuan
Aug 15, 2013·Environmental Science & Technology·Pascal WunderlinAdriano Joss
Sep 5, 2013·Environmental Science & Technology·Yuting PanZhiguo Yuan
Nov 7, 2013·Environmental Technology·K E MampaeyE I P Volcke

❮ Previous
Next ❯

Citations

Aug 9, 2016·Bioresource Technology·Giorgio ManninaHallvard Ødegaard
Feb 14, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Longqi LangMathieu Spérandio
Mar 1, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Giacomo BellandiIngmar Nopens
Dec 21, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Jean-David TherrienPeter A Vanrolleghem

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.