{"id":11604,"date":"2022-01-01T18:13:44","date_gmt":"2022-01-01T18:13:44","guid":{"rendered":"http:\/\/lequia-udg.com\/2022\/01\/01\/exploring-the-recovery-of-potassium-rich-struvite-after-a-nitrification-denitrification-process-in-pig-slurry-treatment\/"},"modified":"2024-04-16T17:21:16","modified_gmt":"2024-04-16T17:21:16","slug":"exploring-the-recovery-of-potassium-rich-struvite-after-a-nitrification-denitrification-process-in-pig-slurry-treatment","status":"publish","type":"post","link":"https:\/\/lequia-udg.com\/ca\/2022\/01\/01\/exploring-the-recovery-of-potassium-rich-struvite-after-a-nitrification-denitrification-process-in-pig-slurry-treatment\/","title":{"rendered":"Exploring the recovery of potassium-rich struvite after a nitrification-denitrification process in pig slurry treatment"},"content":{"rendered":"\t\t
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\r\n\t\t\t\r\n\t\t\t\tAuthors: Company, Emma; Farr\u00e9s M.; Colprim, Jes\u00fas; Magr\u00ed, Albert \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\tExploring the recovery of potassium-rich struvite after a nitrification-denitrification process in pig slurry treatment\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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The integration of biological nitrogen (N) removal with struvite-type material recovery, which contained phosphorus (P) and potassium (K), was proved to be technically feasible in pig slurry treatment. Phosphate (PO4<\/sub>) salts were precipitated by raising the pH-value, using denitrified effluent and waste sludge purged from the bioreactor. When P was limiting, the unbalanced composition of the denitrified effluent resulted in low K-removal efficiency from the liquid phase; 10 % maximum when the initial pH-value was adjusted to 11.5 (93 % PO4<\/sub>-P recovery). By processing the waste sludge in two steps, using first ethylenediaminetetraacetic acid (EDTA) as an acidifier to release PO4<\/sub>\u00a0while preventing calcium interference, the K-removal efficiency reached 25 % (75 % PO4<\/sub>-P recovery). When K was limiting, the addition of newberyite particles resulted in the highest K-removal efficiency, up to 90 % (under online pH control to 10.5). Overall, new opportunities are envisaged for producing second-generation fertilizers potentially containing 0\u20131 % N, 11\u201317 % P and 6\u20138 % K.<\/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>\n2022<\/td>\n<\/tr>\n
Authors:<\/strong><\/td>\nCompany, Emma; Farr\u00e9s M.; Colprim, Jes\u00fas; Magr\u00ed, Albert<\/td>\n<\/tr>\n
Reference:<\/strong><\/td>\nScience of the Total Environment, Open Access, Volume 84715, November 2022, Article number 157574<\/td>\n<\/tr>\n
Link:<\/strong><\/td>\nhttp:\/\/dx.doi.org\/10.1016\/j.scitotenv.2022.157574<\/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: Company, Emma; Farr\u00e9s M.; Colprim, Jes\u00fas; Magr\u00ed, Albert Exploring the recovery of potassium-rich struvite after a nitrification-denitrification process in pig slurry treatment The integration of biological nitrogen (N) removal with struvite-type material recovery, which contained phosphorus (P) and potassium (K), was proved to be technically feasible in pig slurry treatment. Phosphate (PO4) salts were … Exploring the recovery of potassium-rich struvite after a nitrification-denitrification process in pig slurry treatment<\/span>“>Continue reading Exploring the recovery of potassium-rich struvite after a nitrification-denitrification process in pig slurry treatment<\/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-11604","post","type-post","status-publish","format-standard","hentry","category-articles-ca"],"_links":{"self":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11604","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=11604"}],"version-history":[{"count":1,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11604\/revisions"}],"predecessor-version":[{"id":11605,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11604\/revisions\/11605"}],"wp:attachment":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/media?parent=11604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/categories?post=11604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/tags?post=11604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}