Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 384702
Title Nitrous oxide emission during wastewater treatment
Author(s) Kampschreur, M.J.; Temmink, B.G.; Kleerebezem, R.; Jetten, M.S.M.; Loosdrecht, M.C.M.
Source Water Research 43 (2009)17. - ISSN 0043-1354 - p. 4093 - 4103.
Department(s) Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2009
Keyword(s) denitrificatie - broeikaseffect - stikstofoxide - nitrificatie - distikstofmonoxide - afvalwaterbehandeling - broeikasgassen - stikstof - verwijdering - denitrification - greenhouse effect - nitric oxide - nitrification - nitrous oxide - waste water treatment - greenhouse gases - nitrogen - removal - biological phosphorus removal - denitrifying activated-sludge - sequencing batch reactor - treatment-plant - alcaligenes-faecalis - dinitrogen oxide - n2o production - simultaneous nitrification - aerobic denitrification - autotrophic nitrifiers
Categories Waste Water Treatment / Air Pollution
Abstract Nitrous oxide (N2O), a potent greenhouse gas, can be emitted during wastewater treatment, significantly contributing to the greenhouse gas footprint. Measurements at lab-scale and full-scale wastewater treatment plants (WWTPs) have demonstrated that N2O can be emitted in substantial amounts during nitrogen removal in WWTPs, however, a large variation in reported emission values exists. Analysis of literature data enabled the identification of the most important operational parameters leading to N2O emission in WWTPs: (i) low dissolved oxygen concentration in the nitrification and denitrification stages, (ii) increased nitrite concentrations in both nitrification and denitrification stages, and (iii) low COD/N ratio in the denitrification stage. From the literature it remains unclear whether nitrifying or denitrifying microorganisms are the main source of N2O emissions. Operational strategies to prevent N2O emission from WWTPs are discussed and areas in which further research is urgently required are identified
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