{"id":11600,"date":"2022-01-01T18:17:28","date_gmt":"2022-01-01T18:17:28","guid":{"rendered":"http:\/\/lequia-udg.com\/2022\/01\/01\/effect-of-hydraulic-retention-time-on-the-electro-bioremediation-of-nitrate-in-saline-groundwater\/"},"modified":"2024-04-16T17:20:43","modified_gmt":"2024-04-16T17:20:43","slug":"effect-of-hydraulic-retention-time-on-the-electro-bioremediation-of-nitrate-in-saline-groundwater","status":"publish","type":"post","link":"https:\/\/lequia-udg.com\/ca\/2022\/01\/01\/effect-of-hydraulic-retention-time-on-the-electro-bioremediation-of-nitrate-in-saline-groundwater\/","title":{"rendered":"Effect of hydraulic retention time on the electro-bioremediation of nitrate in saline groundwater"},"content":{"rendered":"\t\t
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\r\n\t\t\t\r\n\t\t\t\tAuthors: Puggioni, Giulia; Milia, Stefano; Unali, Valentina; Ardu, Riccardo; Tamburini, Elena; Balaguer, M. Dolors; Pous, Narc\u00eds; Carucci, Alessandra; 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\tEffect of hydraulic retention time on the electro-bioremediation of nitrate in saline groundwater\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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Bioelectrochemical systems (BES) have proven their capability to treat nitrate-contaminated saline groundwater and simultaneously recover value-added chemicals (such as disinfection products) within a circular economy-based approach. In this study, the effect of the hydraulic retention time (HRT) on nitrate and\u00a0salinity<\/a>\u00a0removal, as well as on free chlorine production, was investigated in a 3-compartment BES working in galvanostatic mode with the perspective of process intensification and future scale-up. Reducing the HRT from 30.1 \u00b1 2.3 to 2.4 \u00b1 0.2 h led to a corresponding increase in nitrate removal rates (from 17 \u00b1 1 up to 131 \u00b1 1 mgNO3<\/sub>\u2212<\/sup>-N L\u22121<\/sup>d\u22121<\/sup>), although a progressive decrease in\u00a0desalination<\/a>\u00a0efficiency (from 77 \u00b1 13 to 12 \u00b1 2 %) was observed. Nitrate concentration and salinity close to threshold limits indicated by the World Health Organization for drinking water, as well as significant chlorine production were achieved with an HRT of 4.9 \u00b1 0.4 h. At such HRT, specific energy consumption was low (6.8\u00b710\u22122<\/sup>\u00a0\u00b1 0.3\u00b710\u22122<\/sup>\u00a0kWh g\u22121<\/sup>NO3<\/sub>\u2212<\/sup>-Nremoved<\/sub>), considering that the supplied energy supports three processes simultaneously. A logarithmic equation correlated well with nitrate removal rates at the applied HRTs and may be used to predict BES behaviour with different HRTs. The bacterial community of the bio-cathode under galvanostatic mode was dominated by a few populations, including the genera\u00a0Rhizobium<\/a><\/em>, Bosea, Fontibacter<\/em>\u00a0and\u00a0Gordonia<\/em>. The results provide useful information for the scale-up of BES treating multi-contaminated groundwater.<\/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>\n2022<\/td>\n<\/tr>\n
Authors:<\/strong><\/td>\nPuggioni, Giulia; Milia, Stefano; Unali, Valentina; Ardu, Riccardo; Tamburini, Elena; Balaguer, M. Dolors; Pous, Narc\u00eds; Carucci, Alessandra; Puig, Sebasti\u00e0<\/td>\n<\/tr>\n
Reference:<\/strong><\/td>\nScience of the Total Environment Volume 8451, November 2022, Article number 157236<\/td>\n<\/tr>\n
Link:<\/strong><\/td>\nhttp:\/\/dx.doi.org\/10.1016\/j.scitotenv.2022.157236<\/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: Puggioni, Giulia; Milia, Stefano; Unali, Valentina; Ardu, Riccardo; Tamburini, Elena; Balaguer, M. Dolors; Pous, Narc\u00eds; Carucci, Alessandra; Puig, Sebasti\u00e0 Effect of hydraulic retention time on the electro-bioremediation of nitrate in saline groundwater Bioelectrochemical systems (BES) have proven their capability to treat nitrate-contaminated saline groundwater and simultaneously recover value-added chemicals (such as disinfection products) within … Effect of hydraulic retention time on the electro-bioremediation of nitrate in saline groundwater<\/span>“>Continue reading Effect of hydraulic retention time on the electro-bioremediation of nitrate in saline groundwater<\/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-11600","post","type-post","status-publish","format-standard","hentry","category-articles-ca"],"_links":{"self":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11600","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=11600"}],"version-history":[{"count":1,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11600\/revisions"}],"predecessor-version":[{"id":11601,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11600\/revisions\/11601"}],"wp:attachment":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/media?parent=11600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/categories?post=11600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/tags?post=11600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}