{"id":11668,"date":"2021-01-01T17:40:45","date_gmt":"2021-01-01T17:40:45","guid":{"rendered":"http:\/\/lequia-udg.com\/2021\/01\/01\/combining-electro-bioremediation-of-nitrate-in-saline-groundwater-with-concomitant-chlorine-production\/"},"modified":"2024-04-18T15:59:38","modified_gmt":"2024-04-18T15:59:38","slug":"combining-electro-bioremediation-of-nitrate-in-saline-groundwater-with-concomitant-chlorine-production","status":"publish","type":"post","link":"https:\/\/lequia-udg.com\/ca\/2021\/01\/01\/combining-electro-bioremediation-of-nitrate-in-saline-groundwater-with-concomitant-chlorine-production\/","title":{"rendered":"Combining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production"},"content":{"rendered":"\t\t
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\r\n\t\t\t\r\n\t\t\t\tAuthors: Puggioni G., Milia S., Dess\\u00ec E., Unali V., Pous N., Balaguer M.D., Puig S., Carucci, A. \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\tCombining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production\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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Groundwater pollution and salinization have increased steadily over the years. As the balance between water demand and availability has reached a critical level in many world regions, a sustainable approach for the management (including recovery) of saline water resources has become essential. A 3-compartment cell configuration was tested for a new application based on the simultaneous denitrification and desalination of nitrate-contaminated saline groundwater and the recovery of value-added chemicals. The cells were initially operated in potentiostatic mode to promote autotrophic denitrification at the bio-cathode, and then switched to galvanostatic mode to improve the desalination of groundwater in the central compartment. The average nitrate removal rate achieved was 39\u00b11 mgNO3<\/sub>\u2212<\/sup>-N L\u22121<\/sup>\u00a0d\u22121<\/sup>, and no intermediates (i.e., nitrite and nitrous oxide) were observed in the effluent. Groundwater salinity was considerably reduced (average chloride removal was 63\u00b15%). Within a circular economy approach, part of the removed chloride was recovered in the anodic compartment and converted into chlorine, which reached a concentration of 26.8\u00b13.4 mgCl2<\/sub>\u00a0L\u22121<\/sup>. The accumulated chlorine represents a value-added product, which could also be dosed for disinfection in water treatment plants. With this cell configuration, WHO and European legislation threshold limits for nitrate (11.3 mgNO3<\/sub>\u2212<\/sup>-N L\u22121<\/sup>) and salinity (2.5 mS cm\u22121<\/sup>) in drinking water were met, with low specific power consumptions (0.13\u00b10.01 kWh g\u22121<\/sup>NO3<\/sub>\u2212<\/sup>-Nremoved<\/sub>). These results are promising and pave the ground for successfully developing a sustainable technology to tackle an urgent environmental issue.\u00a0<\/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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Year:<\/strong><\/td>\n2021<\/td>\n<\/tr>\n
Authors:<\/strong><\/td>\nPuggioni G., Milia S., Dess\\u00ec E., Unali V., Pous N., Balaguer M.D., Puig S., Carucci, A.<\/td>\n<\/tr>\n
Reference:<\/strong><\/td>\nWater Research, Volume 2061, November 2021, Article number 117736<\/td>\n<\/tr>\n
Link:<\/strong><\/td>\nhttp:\/\/dx.doi.org\/10.1016\/j.watres.2021.117736<\/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 G., Milia S., Dessu00ec E., Unali V., Pous N., Balaguer M.D., Puig S., Carucci, A. Combining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production Groundwater pollution and salinization have increased steadily over the years. As the balance between water demand and availability has reached a critical level in many world regions, … Combining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production<\/span>“>Continue reading Combining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production<\/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-11668","post","type-post","status-publish","format-standard","hentry","category-articles-ca"],"_links":{"self":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11668","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=11668"}],"version-history":[{"count":1,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11668\/revisions"}],"predecessor-version":[{"id":11669,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11668\/revisions\/11669"}],"wp:attachment":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/media?parent=11668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/categories?post=11668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/tags?post=11668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}