{"id":11802,"date":"2019-01-01T17:02:37","date_gmt":"2019-01-01T17:02:37","guid":{"rendered":"http:\/\/lequia-udg.com\/2019\/01\/01\/potassium-recovery-from-centrate-taking-advantage-of-autotrophic-nitrogen-removal-for-multi-nutrient-recovery\/"},"modified":"2024-04-18T16:26:34","modified_gmt":"2024-04-18T16:26:34","slug":"potassium-recovery-from-centrate-taking-advantage-of-autotrophic-nitrogen-removal-for-multi-nutrient-recovery","status":"publish","type":"post","link":"https:\/\/lequia-udg.com\/ca\/2019\/01\/01\/potassium-recovery-from-centrate-taking-advantage-of-autotrophic-nitrogen-removal-for-multi-nutrient-recovery\/","title":{"rendered":"Potassium recovery from centrate: taking advantage of autotrophic nitrogen removal for multi-nutrient recovery"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t

\r\n\t\t\t\r\n\t\t\t\tAuthors: Johansson, S., Ruscalleda, M., Saerens, B., Colprim, J. \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\tPotassium recovery from centrate: taking advantage of autotrophic nitrogen removal for multi-nutrient recovery\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
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

BACKGROUND: Potassium is a key macronutrient, but little attention has been paid to its recovery from waste streams. This study investigates simultaneous recovery of phosphorus and potassium in the form of potassium struvite (MgKPO\u00a04<\/sub>\u00a0\u00b76H\u00a02<\/sub>\u00a0O) from centrate after nitrogen removal by partial nitritation\u2013anammox (PNA). Lab-scale batch experiments to assess the influence of pH, Mg:P ratio and temperature on nutrient removal were conducted on effluent from two PNA reactors fed with centrate from municipal wastewater treatment plants. RESULTS: pH had a strong impact on potassium removal, which increased up to pH 11. At this pH, a product containing 11.4% P, 3.51% N and 4.34% K was obtained. X-ray diffraction confirmed the presence of potassium struvite together with ammonium struvite (MgNH\u00a04<\/sub>\u00a0PO\u00a04<\/sub>\u00a0.6H\u00a02<\/sub>\u00a0O). PNA reduced the alkalinity by 90%, which surpasses the performance of conventional CO\u00a02<\/sub>\u00a0stripping by aeration. CONCLUSION: Coupling PNA with struvite precipitation allows for the recovery of N, P and K in a multi-nutrient product and may drastically reduce the need for alkali dosing for pH control.<\/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

\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\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
\n\n\n\n\n\n
Year:<\/strong><\/td>\n2019<\/td>\n<\/tr>\n
Authors:<\/strong><\/td>\nJohansson, S., Ruscalleda, M., Saerens, B., Colprim, J.<\/td>\n<\/tr>\n
Reference:<\/strong><\/td>\nJournal of Chemical Technology and Biotechnology Volume 94, Issue 3, March 2019, Pages 819-828<\/td>\n<\/tr>\n
Link:<\/strong><\/td>\nhttp:\/\/dx.doi.org\/10.1002\/jctb.5828<\/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
\n\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t
<\/div>\n\t\t<\/div>\n\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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Authors: Johansson, S., Ruscalleda, M., Saerens, B., Colprim, J. Potassium recovery from centrate: taking advantage of autotrophic nitrogen removal for multi-nutrient recovery BACKGROUND: Potassium is a key macronutrient, but little attention has been paid to its recovery from waste streams. This study investigates simultaneous recovery of phosphorus and potassium in the form of potassium struvite … Potassium recovery from centrate: taking advantage of autotrophic nitrogen removal for multi-nutrient recovery<\/span>“>Continue reading Potassium recovery from centrate: taking advantage of autotrophic nitrogen removal for multi-nutrient recovery<\/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-11802","post","type-post","status-publish","format-standard","hentry","category-articles-ca"],"_links":{"self":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11802","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=11802"}],"version-history":[{"count":1,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11802\/revisions"}],"predecessor-version":[{"id":11803,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/11802\/revisions\/11803"}],"wp:attachment":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/media?parent=11802"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/categories?post=11802"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/tags?post=11802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}