{"id":11550,"date":"2023-01-01T19:09:31","date_gmt":"2023-01-01T19:09:31","guid":{"rendered":"http:\/\/lequia-udg.com\/2023\/01\/01\/direct-ammonium-oxidation-to-nitrogen-gas-dirammox-in-alcaligenes-strain-ho-1-the-electrode-role\/"},"modified":"2024-04-16T17:10:35","modified_gmt":"2024-04-16T17:10:35","slug":"direct-ammonium-oxidation-to-nitrogen-gas-dirammox-in-alcaligenes-strain-ho-1-the-electrode-role","status":"publish","type":"post","link":"https:\/\/lequia-udg.com\/ca\/2023\/01\/01\/direct-ammonium-oxidation-to-nitrogen-gas-dirammox-in-alcaligenes-strain-ho-1-the-electrode-role\/","title":{"rendered":"Direct ammonium oxidation to nitrogen gas (Dirammox) in Alcaligenes strain HO-1: The electrode role"},"content":{"rendered":"\t\t
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\r\n\t\t\t\r\n\t\t\t\tAuthors: Pous, Narc\u00eds; Ba\u00f1eras, Lluis; Corvini, Philippe F.-X.; Liu, Shuang-Jiang; Puig, Sebasti\u00e0 \r\n\t\t\t\r\n\t\t\t<\/h4>\r\n\t\t

\r\n\t\t\t\r\n\t\t\t\tDirect ammonium oxidation to nitrogen gas (Dirammox) in Alcaligenes strain HO-1: The electrode role\r\n\t\t\t\r\n\t\t\t<\/h2>\r\n\t\t<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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It has been recently suggested that Alcaligenes use a previously unknown pathway to convert ammonium into dinitrogen gas (Dirammox) via hydroxylamine (NH2<\/sub>OH). This fact alone already implies a significant decrease in the aeration requirements for the process, but the process would still be dependent on external aeration. This work studied the potential use of a polarised electrode as an electron acceptor for ammonium oxidation using the recently described Alcaligenes strain HO-1 as a model heterotrophic nitrifier. Results indicated that Alcaligenes strain HO-1 requires aeration for metabolism, a requirement that cannot be replaced for a polarised electrode alone. However, concomitant elimination of succinate and ammonium was observed when operating a previously grown Alcaligenes strain HO-1 culture in the presence of a polarised electrode and without aeration. The usage of a polarised electrode together with aeration did not increase the succinate nor the nitrogen removal rates observed with aeration alone. However, current density generation was observed along a feeding batch test representing an electron share of 3% of the ammonium removed in the presence of aeration and 16% without aeration. Additional tests suggested that hydroxylamine oxidation to dinitrogen gas could have a relevant role in the electron discharge onto the anode. Therefore, the presence of a polarised electrode supported the metabolic functions of Alcaligenes strain HO-1 on the simultaneous oxidation of succinate and ammonium.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/i><\/span>\n\t\t\t\t\t\t\t\t<\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tInformaci\u00f3 addicional<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t
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Year:<\/strong><\/td>\n2023<\/td>\n<\/tr>\n
Authors:<\/strong><\/td>\nPous, Narc\u00eds; Ba\u00f1eras, Lluis; Corvini, Philippe F.-X.; Liu, Shuang-Jiang; Puig, Sebasti\u00e0<\/td>\n<\/tr>\n
Reference:<\/strong><\/td>\nEnvironmental Science and Ecotechnology, Volume 15, Article number 100253<\/td>\n<\/tr>\n
Link:<\/strong><\/td>\nhttp:\/\/dx.doi.org\/10.1016\/j.ese.2023.100253<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Authors: Pous, Narc\u00eds; Ba\u00f1eras, Lluis; Corvini, Philippe F.-X.; Liu, Shuang-Jiang; Puig, Sebasti\u00e0 Direct ammonium oxidation to nitrogen gas (Dirammox) in Alcaligenes strain HO-1: The electrode role It has been recently suggested that Alcaligenes use a previously unknown pathway to convert ammonium into dinitrogen gas (Dirammox) via hydroxylamine (NH2OH). This fact alone already implies a significant … Direct ammonium oxidation to nitrogen gas (Dirammox) in Alcaligenes strain HO-1: The electrode role<\/span>“>Continue reading Direct ammonium oxidation to nitrogen gas (Dirammox) in Alcaligenes strain HO-1: The electrode role<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[64],"tags":[],"class_list":["post-11550","post","type-post","status-publish","format-standard","hentry","category-articles-ca"],"_links":{"self":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/comments?post=11550"}],"version-history":[{"count":1,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11550\/revisions"}],"predecessor-version":[{"id":11551,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11550\/revisions\/11551"}],"wp:attachment":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/media?parent=11550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/categories?post=11550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/tags?post=11550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}