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The influence of NO\n                      <jats:sub>3<\/jats:sub>\n                      <jats:sup>\u2212<\/jats:sup>\n                      concentration on N\n                      <jats:sub>2<\/jats:sub>\n                      O production during this process was also evaluated. The results showed that NO\n                      <jats:sub>3<\/jats:sub>\n                      <jats:sup>\u2212<\/jats:sup>\n                      was removed at rates up to 2.8\u2009g\u2009m\n                      <jats:sub>reactor<\/jats:sub>\n                      <jats:sup>\u22123<\/jats:sup>\n                      \u2009h\n                      <jats:sup>\u22121<\/jats:sup>\n                      using CH\n                      <jats:sub>4<\/jats:sub>\n                      as electron donor. N\n                      <jats:sub>2<\/jats:sub>\n                      O production rates correlated with NO\n                      <jats:sub>3<\/jats:sub>\n                      <jats:sup>\u2212<\/jats:sup>\n                      concentration in the liquid phase, with a 10\u2010fold increase in N\n                      <jats:sub>2<\/jats:sub>\n                      O production as NO\n                      <jats:sub>3<\/jats:sub>\n                      <jats:sup>\u2212<\/jats:sup>\n                      concentration increased from 50 to 200\u2009g\u2009m\n                      <jats:sup>\u22123<\/jats:sup>\n                      . The use of H\n                      <jats:sub>2<\/jats:sub>\n                      S as co\u2010electron donor resulted in a 13\u2010fold increase in NO\n                      <jats:sub>3<\/jats:sub>\n                      <jats:sup>\u2212<\/jats:sup>\n                      removal rates (\u223c18\u2009gNO\n                      <jats:sub>3<\/jats:sub>\n                      <jats:sup>\u2212<\/jats:sup>\n                      \u2009m\n                      <jats:sup>\u22123<\/jats:sup>\n                      \u2009h\n                      <jats:sup>\u22121<\/jats:sup>\n                      ) and complete denitrification under steady\u2010state conditions, which was supported by higher abundances of\n                      <jats:italic>narG<\/jats:italic>\n                      ,\n                      <jats:italic>nirK<\/jats:italic>\n                      , and\n                      <jats:italic>nosZ<\/jats:italic>\n                      denitrifying genes. Although the relative abundance of the DAMO population in the consortium was reduced from 60% to 13% after H\n                      <jats:sub>2<\/jats:sub>\n                      S addition, CH\n                      <jats:sub>4<\/jats:sub>\n                      removals were not compromised and H\n                      <jats:sub>2<\/jats:sub>\n                      S removal efficiencies of 100% were achieved. This study confirmed (i) the feasibility of co\u2010oxidising CH\n                      <jats:sub>4<\/jats:sub>\n                      and H\n                      <jats:sub>2<\/jats:sub>\n                      S with denitrification, as well as (ii) the critical need to control NO\n                      <jats:sub>3<\/jats:sub>\n                      <jats:sup>\u2212<\/jats:sup>\n                      concentration to minimize N\n                      <jats:sub>2<\/jats:sub>\n                      O production by anoxic denitrifiers. Biotechnol. Bioeng. 2017;114: 665\u2013673. \u00a9 2016 Wiley Periodicals, Inc.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/bit.26092","type":"journal-article","created":{"date-parts":[[2016,9,6]],"date-time":"2016-09-06T01:58:27Z","timestamp":1473127107000},"page":"665-673","source":"Crossref","is-referenced-by-count":48,"title":["Biogas\u2010based denitrification in a biotrickling filter: Influence of nitrate concentration and hydrogen sulfide"],"prefix":"10.1002","volume":"114","author":[{"given":"Juan C.","family":"L\u00f3pez","sequence":"first","affiliation":[{"name":"Department of Chemical Engineering and Environmental Technology University of Valladolid Dr. Mergelina, s\/n Valladolid 47011 Spain"},{"name":"Microbial Communities Laboratory School of Natural Sciences and Ryan Institute National University of Ireland Galway University Road Galway H91 TK33 Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Estefan\u00eda","family":"Porca","sequence":"additional","affiliation":[{"name":"Microbial Communities Laboratory School of Natural Sciences and Ryan Institute National University of Ireland Galway University Road Galway H91 TK33 Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gavin","family":"Collins","sequence":"additional","affiliation":[{"name":"Microbial Communities Laboratory School of Natural Sciences and Ryan Institute National University of Ireland Galway University Road Galway H91 TK33 Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebeca","family":"P\u00e9rez","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering and Environmental Technology University of Valladolid Dr. Mergelina, s\/n Valladolid 47011 Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alberto","family":"Rodr\u00edguez\u2010Alija","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering and Environmental Technology University of Valladolid Dr. Mergelina, s\/n Valladolid 47011 Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ra\u00fal","family":"Mu\u00f1oz","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering and Environmental Technology University of Valladolid Dr. Mergelina, s\/n Valladolid 47011 Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guillermo","family":"Quijano","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering and Environmental Technology University of Valladolid Dr. Mergelina, s\/n Valladolid 47011 Spain"},{"name":"Laboratory for Research on Advanced Processes for Wastewater Treatment \u2013 Engineering Institute, Juriquilla Academic Unit National Autonomous University of Mexico (UNAM) Blvd. Juriquilla 3001 Quer\u00e9taro 76230 Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,9,26]]},"reference":[{"key":"e_1_2_6_2_1","volume-title":"Standard methods for the examination of water and wastewater, 21st edition","year":"2005"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.watres.2015.09.026"},{"key":"e_1_2_6_4_1","first-page":"58","volume-title":"Biomethane and biohydrogen: Status and perspectives of biological methane and hydrogen production","author":"De Mes TZD","year":"2003"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00253-014-5936-8"},{"key":"e_1_2_6_6_1","unstructured":"European Environment Agency.2014. 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