Recent advances in mathematical modeling of nitrous oxides emissions from wastewater treatment processes

Ni, Bing-Jie and Yuan, Zhiguo (2015) Recent advances in mathematical modeling of nitrous oxides emissions from wastewater treatment processes. Water Research, 87 336-346. doi:10.1016/j.watres.2015.09.049


Author Ni, Bing-Jie
Yuan, Zhiguo
Title Recent advances in mathematical modeling of nitrous oxides emissions from wastewater treatment processes
Journal name Water Research   Check publisher's open access policy
ISSN 1879-2448
0043-1354
Publication date 2015-12-15
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1016/j.watres.2015.09.049
Open Access Status Not Open Access
Volume 87
Start page 336
End page 346
Total pages 11
Place of publication London, United Kingdom
Publisher I W A Publishing
Collection year 2016
Language eng
Formatted abstract
Nitrous oxide (N2O) can be emitted from wastewater treatment contributing to its greenhouse gas footprint significantly. Mathematical modeling of N2O emissions is of great importance toward the understanding and reduction of the environmental impact of wastewater treatment systems. This article reviews the current status of the modeling of N2O emissions from wastewater treatment. The existing mathematical models describing all the known microbial pathways for N2O production are reviewed and discussed. These included N2O production by ammonia-oxidizing bacteria (AOB) through the hydroxylamine oxidation pathway and the AOB denitrification pathway, N2O production by heterotrophic denitrifiers through the denitrification pathway, and the integration of these pathways in single N2O models. The calibration and validation of these models using lab-scale and full-scale experimental data is also reviewed. We conclude that the mathematical modeling of N2O production, while is still being enhanced supported by new knowledge development, has reached a maturity that facilitates the estimation of site-specific N2O emissions and the development of mitigation strategies for a wastewater treatment plant taking into the specific design and operational conditions of the plant.
Keyword AOB
AOB denitrification
Heterotrophic denitrification
Hydroxylamine oxidation
Model
Nitrous oxide
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Official 2016 Collection
Advanced Water Management Centre Publications
 
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