N2O emissions from activated sludge processes, 2008-2009: Results of a national monitoring survey in the united states
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ahn, J.H. | - |
dc.contributor.author | Kim, S. | - |
dc.contributor.author | Park, H. | - |
dc.contributor.author | Rahm, B. | - |
dc.contributor.author | Pagilla, K. | - |
dc.contributor.author | Chandran, K. | - |
dc.date.accessioned | 2021-09-08T09:05:32Z | - |
dc.date.available | 2021-09-08T09:05:32Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2010 | - |
dc.identifier.issn | 0013-936X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/118268 | - |
dc.description.abstract | Despite recognition of the possible role of biological nitrogen removal (BNR) processes in nitrous oxide (N2O) emission, a measured database of N2O emissions from these processes at the national scale does not currently exist. This study focused on the quantification of N2O emissions at 12 wastewater treatment plants (WWTPs) across the United States using a newly developed U.S. Environmental Protection Agency (USEPA) reviewed protocol. A high degree of variability in field-scale measurements of N 2O was observed, both across the WWTPs sampled and within each WWTP. Additionally, aerobic zones, which have hitherto not been considered in the USEPA approach of estimating N2O emissions, generally contributed more to N2O fluxes than anoxic zones from BNR reactors. These results severely qualify the conventional use of a single emission factor to estimate N2O emissions from BNR processes, solely by virtue of denitrification. Upon subjecting the nationwide data set to multivariate regression data mining, high nitrite, ammonium, and dissolved oxygen concentrations were positively correlated with N2O emissions from aerobic zones of activated sludge reactors. On the other hand, high nitrite and dissolved oxygen concentrations were positively correlated with N 2O emissions from anoxic zones. Based on these results, it can be argued that activated sludge processes that minimize transient or permanent build up of ammonium or nitrite, especially in the presence of dissolved oxygen, are expected to have low N2O emissions. © 2010 American Chemical Society. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.subject | Activated sludge reactors | - |
dc.subject | Aerobic zones | - |
dc.subject | Biological nitrogen removal process | - |
dc.subject | Data sets | - |
dc.subject | Dissolved oxygen concentrations | - |
dc.subject | Emission factors | - |
dc.subject | High degree of variability | - |
dc.subject | In-field | - |
dc.subject | Multivariate regression | - |
dc.subject | Nitrous oxide | - |
dc.subject | U.S. Environmental Protection Agency | - |
dc.subject | Wastewater treatment plants | - |
dc.subject | Activated sludge process | - |
dc.subject | Ammonium compounds | - |
dc.subject | Bioactivity | - |
dc.subject | Dissolution | - |
dc.subject | Environmental Protection Agency | - |
dc.subject | Nitrogen oxides | - |
dc.subject | Nitrogen removal | - |
dc.subject | Regression analysis | - |
dc.subject | Wastewater | - |
dc.subject | Wastewater reclamation | - |
dc.subject | Wastewater treatment | - |
dc.subject | Water treatment plants | - |
dc.subject | Dissolved oxygen | - |
dc.subject | ammonia | - |
dc.subject | dissolved oxygen | - |
dc.subject | nitrite | - |
dc.subject | nitrogen | - |
dc.subject | nitrous oxide | - |
dc.subject | nitrous oxide | - |
dc.subject | activated sludge | - |
dc.subject | anoxic conditions | - |
dc.subject | bioreactor | - |
dc.subject | data set | - |
dc.subject | emission | - |
dc.subject | nitrogen oxides | - |
dc.subject | sampling | - |
dc.subject | waste treatment | - |
dc.subject | wastewater | - |
dc.subject | activated sludge | - |
dc.subject | article | - |
dc.subject | concentration (parameters) | - |
dc.subject | correlational study | - |
dc.subject | data mining | - |
dc.subject | environmental protection | - |
dc.subject | measurement | - |
dc.subject | monitoring | - |
dc.subject | multivariate analysis | - |
dc.subject | nitrous oxide emission | - |
dc.subject | reactor | - |
dc.subject | regression analysis | - |
dc.subject | sample | - |
dc.subject | United States | - |
dc.subject | waste water management | - |
dc.subject | aerobic metabolism | - |
dc.subject | anaerobic growth | - |
dc.subject | bioremediation | - |
dc.subject | chemical model | - |
dc.subject | environmental monitoring | - |
dc.subject | information processing | - |
dc.subject | isolation and purification | - |
dc.subject | methodology | - |
dc.subject | microbiology | - |
dc.subject | sewage | - |
dc.subject | temperature | - |
dc.subject | time | - |
dc.subject | water management | - |
dc.subject | Aerobiosis | - |
dc.subject | Anaerobiosis | - |
dc.subject | Biodegradation, Environmental | - |
dc.subject | Data Collection | - |
dc.subject | Environmental Monitoring | - |
dc.subject | Models, Chemical | - |
dc.subject | Nitrogen | - |
dc.subject | Nitrous Oxide | - |
dc.subject | Sewage | - |
dc.subject | Temperature | - |
dc.subject | Time Factors | - |
dc.subject | United States | - |
dc.subject | Waste Disposal, Fluid | - |
dc.subject | Water Purification | - |
dc.title | N2O emissions from activated sludge processes, 2008-2009: Results of a national monitoring survey in the united states | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, S. | - |
dc.identifier.doi | 10.1021/es903845y | - |
dc.identifier.scopusid | 2-s2.0-77953508204 | - |
dc.identifier.bibliographicCitation | Environmental Science and Technology, v.44, no.12, pp.4505 - 4511 | - |
dc.relation.isPartOf | Environmental Science and Technology | - |
dc.citation.title | Environmental Science and Technology | - |
dc.citation.volume | 44 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 4505 | - |
dc.citation.endPage | 4511 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | Activated sludge reactors | - |
dc.subject.keywordPlus | Aerobic zones | - |
dc.subject.keywordPlus | Biological nitrogen removal process | - |
dc.subject.keywordPlus | Data sets | - |
dc.subject.keywordPlus | Dissolved oxygen concentrations | - |
dc.subject.keywordPlus | Emission factors | - |
dc.subject.keywordPlus | High degree of variability | - |
dc.subject.keywordPlus | In-field | - |
dc.subject.keywordPlus | Multivariate regression | - |
dc.subject.keywordPlus | Nitrous oxide | - |
dc.subject.keywordPlus | U.S. Environmental Protection Agency | - |
dc.subject.keywordPlus | Wastewater treatment plants | - |
dc.subject.keywordPlus | Activated sludge process | - |
dc.subject.keywordPlus | Ammonium compounds | - |
dc.subject.keywordPlus | Bioactivity | - |
dc.subject.keywordPlus | Dissolution | - |
dc.subject.keywordPlus | Environmental Protection Agency | - |
dc.subject.keywordPlus | Nitrogen oxides | - |
dc.subject.keywordPlus | Nitrogen removal | - |
dc.subject.keywordPlus | Regression analysis | - |
dc.subject.keywordPlus | Wastewater | - |
dc.subject.keywordPlus | Wastewater reclamation | - |
dc.subject.keywordPlus | Wastewater treatment | - |
dc.subject.keywordPlus | Water treatment plants | - |
dc.subject.keywordPlus | Dissolved oxygen | - |
dc.subject.keywordPlus | ammonia | - |
dc.subject.keywordPlus | dissolved oxygen | - |
dc.subject.keywordPlus | nitrite | - |
dc.subject.keywordPlus | nitrogen | - |
dc.subject.keywordPlus | nitrous oxide | - |
dc.subject.keywordPlus | nitrous oxide | - |
dc.subject.keywordPlus | activated sludge | - |
dc.subject.keywordPlus | anoxic conditions | - |
dc.subject.keywordPlus | bioreactor | - |
dc.subject.keywordPlus | data set | - |
dc.subject.keywordPlus | emission | - |
dc.subject.keywordPlus | nitrogen oxides | - |
dc.subject.keywordPlus | sampling | - |
dc.subject.keywordPlus | waste treatment | - |
dc.subject.keywordPlus | wastewater | - |
dc.subject.keywordPlus | activated sludge | - |
dc.subject.keywordPlus | article | - |
dc.subject.keywordPlus | concentration (parameters) | - |
dc.subject.keywordPlus | correlational study | - |
dc.subject.keywordPlus | data mining | - |
dc.subject.keywordPlus | environmental protection | - |
dc.subject.keywordPlus | measurement | - |
dc.subject.keywordPlus | monitoring | - |
dc.subject.keywordPlus | multivariate analysis | - |
dc.subject.keywordPlus | nitrous oxide emission | - |
dc.subject.keywordPlus | reactor | - |
dc.subject.keywordPlus | regression analysis | - |
dc.subject.keywordPlus | sample | - |
dc.subject.keywordPlus | United States | - |
dc.subject.keywordPlus | waste water management | - |
dc.subject.keywordPlus | aerobic metabolism | - |
dc.subject.keywordPlus | anaerobic growth | - |
dc.subject.keywordPlus | bioremediation | - |
dc.subject.keywordPlus | chemical model | - |
dc.subject.keywordPlus | environmental monitoring | - |
dc.subject.keywordPlus | information processing | - |
dc.subject.keywordPlus | isolation and purification | - |
dc.subject.keywordPlus | methodology | - |
dc.subject.keywordPlus | microbiology | - |
dc.subject.keywordPlus | sewage | - |
dc.subject.keywordPlus | temperature | - |
dc.subject.keywordPlus | time | - |
dc.subject.keywordPlus | water management | - |
dc.subject.keywordPlus | Aerobiosis | - |
dc.subject.keywordPlus | Anaerobiosis | - |
dc.subject.keywordPlus | Biodegradation, Environmental | - |
dc.subject.keywordPlus | Data Collection | - |
dc.subject.keywordPlus | Environmental Monitoring | - |
dc.subject.keywordPlus | Models, Chemical | - |
dc.subject.keywordPlus | Nitrogen | - |
dc.subject.keywordPlus | Nitrous Oxide | - |
dc.subject.keywordPlus | Sewage | - |
dc.subject.keywordPlus | Temperature | - |
dc.subject.keywordPlus | Time Factors | - |
dc.subject.keywordPlus | United States | - |
dc.subject.keywordPlus | Waste Disposal, Fluid | - |
dc.subject.keywordPlus | Water Purification | - |
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