English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

&#x0D;	 Denitrifying polyphosphate accumulating organisms (DNPAOs) are very promising for simultaneous nitrogen and phosphorus removal. While during denitrification, emission of a greenhouse gas, nitrous oxide (N 2 O), may occur. In this study, DNPAOs were enriched in a lab-scale reactor, and N 2 O emission was examined under different electron acceptor conditions. During the anoxic phase, with the uptake of phosphorus, denitrification of nitrate nitrogen (NO 3 -N) was observed without the accumulation of nitrite nitrogen (NO 2 -N). In general, a very low amount of N 2 O was produced with nitrate as the electron acceptor, independent of the applied different nitrate concentrations. However, with nitrite as the electron acceptor, a much higher N 2 O emission occurred. The N 2 O emission factor to the denitrified NO 2 -N was 6.2%, 5.3% and 4.9% at the initial NO 2 -N concentration of 10, 20 and 40 mg l -1 , respectively. In addition, a much higher N 2 O emission occurred with the co-existence of NO 3 -N and NO 2 -N. The initial organic carbon concentration had no significant effect on N 2 O emission with NO 3 -N as the electron acceptor. When stored organic carbon by DNPAOs was used as the electron donor, N 2 O emission was mainly dependent on the electron acceptor.&amp;nbsp; &#x0D; &#x0D; &amp;nbsp; &#x0D;

Nitrous oxide emission depending on the type of electron acceptor by a denitrifying phosphorus removal sludge