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dc.contributor.authorPoh, Leong Soonen_US
dc.identifier.citationPoh, L. S. (2015). Mitigation of N2O emission from the nitrite shortcut process. Doctoral thesis, Nanyang Technological University, Singapore.en_US
dc.description.abstractThe nitrite shortcut is a biological ammonium-nitrogen removal process which has lower requirements for energy and chemical reagents compared to conventional nitrification and denitrification. However, N₂O emission from this process is higher than traditional methods. This thesis looks into the establishment of nitrite shortcut SBRs for municipal wastewater treatment and N₂O emission from the process. It was found that control of SRT and aeration supply were effective in quick establishment of the nitrite shortcut process. Influent inorganic carbon concentration is an important requirement for the enrichment of ammonia oxidizing bacteria. During aerobic nitritation, N₂O emission was found to be affected by the ammonium loading rate (ALR). The N₂O emission factor increased 3 folds when ammonium accumulated at high ALR. During denitrification, temperature was found to affect N₂O accumulation and emission. At higher temperature, imbalanced denitrification rates caused N₂O accumulation and lower solubility at higher temperatures caused higher N₂O emission.en_US
dc.format.extent84 p.en_US
dc.publisherNanyang Technological Universityen_US
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).en_US
dc.subjectDRNTU::Engineering::Environmental engineering::Water treatmenten_US
dc.subjectDRNTU::Engineering::Environmental engineering::Environmental pollutionen_US
dc.titleMitigation of N2O emission from the nitrite shortcut processen_US
dc.typeThesis-Doctor of Philosophyen_US
dc.contributor.supervisorLiu Yuen_US
dc.contributor.supervisorNg Wun Jernen_US
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.description.degreeDoctor of Philosophyen_US
dc.contributor.organizationAdvanced Environmental Biotechnology Centreen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US,
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