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N2O emission from a nitritation double-sludge system treating wastewater with a high concentration of ammoniumView Crossref metadata(active tab) <div id="edit-xml" class="form-item form-type-item"> <?xml version="1.0"?> <doi_batch version="4.4.1" xmlns="http://www.crossref.org/schema/4.4.1" xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.crossref.org/schema/4.4.1 http://www.crossref.org/schemas/crossref4.4.1.xsd"><head><doi_batch_id>000689</doi_batch_id><timestamp>1713251454</timestamp><depositor><depositor_name>University of the Aegean</depositor_name><email_address>uoa@university.com</email_address></depositor><registrant>Global NEST Journal</registrant></head><body><journal><journal_metadata><full_title>Global NEST Journal</full_title><full_title>Global NEST: the international Journal</full_title><issn media_type="print">1790-7632</issn><issn media_type="electronic">2241-777X</issn></journal_metadata><journal_issue><titles><title>Issue 2</title></titles><publication_date><month>06</month><year>2024</year></publication_date><journal_volume><volume>18</volume></journal_volume><issue>2</issue></journal_issue><journal_article><titles><title>N2O emission from a nitritation double-sludge system treating wastewater with a high concentration of ammonium</title></titles><abstract xmlns="http://www.ncbi.nlm.nih.gov/JATS1"><p><p>A high efficient nitrite based double-sludge system combining sequential denitrification and nitritation reactors has been developed to remove nitrogen from wastewaters containing high concentrations of ammonium. System performance was examined and also nitrous oxide (N<sub>2</sub>O) emission was measured under different aeration rates with or without the addition of nitrite nitrogen (NO<sub>2</sub>-N). The nitritation efficiency (the ratio of NO<sub>2</sub>-N to the oxidized nitrogen, NO<sub>X</sub>-N) reached to 99.8% at the ammonium loading rate of 1.47 g l<sup>-1</sup> d<sup>-1</sup>. With increasing the aeration rate, ammonium oxidizing rate increased, indicating that the activity of ammonia oxidizing bacteria was enhanced. However, N<sub>2</sub>O emission decreased with increasing the aeration rate. N<sub>2</sub>O emission was high with the addition of NO<sub>2</sub>-N. The aeration rate had a high effect on N<sub>2</sub>O emission at high initial NO<sub>2</sub>-N concentrations, with the N<sub>2</sub>O emission factor ranged from 0.59% to 1.64%. While the effect of aeration rate on N<sub>2</sub>O emission was not significantly without the addition of NO<sub>2</sub>-N, with the emission factor of only around 0.20% to 0.27%.</p> </p></abstract><publication_date><month>01</month><day>27</day><year>2016</year></publication_date><pages><first_page>235</first_page><last_page>241</last_page></pages><publisher_item><identifier id_type="pii">gnest_01846</identifier></publisher_item><doi_data><doi>10.30955/gnj.001846</doi><timestamp>1713251454</timestamp><resource>https://journal.gnest.org/publication/gnest_01846</resource></doi_data></journal_article></journal></body></doi_batch> </div>
