{"id":153672,"date":"2024-05-08T14:07:02","date_gmt":"2024-05-08T18:07:02","guid":{"rendered":"https:\/\/inspenet.com\/noticias\/recover-phosphorus-sludge-treatment-plants\/"},"modified":"2024-05-08T16:24:41","modified_gmt":"2024-05-08T20:54:41","slug":"recover-phosphorus-sludge-treatment-plants","status":"publish","type":"noticias","link":"https:\/\/inspenet.com\/en\/news\/recover-phosphorus-sludge-treatment-plants\/","title":{"rendered":"They develop a technique to recover phosphorus from sewage plant sludge"},"content":{"rendered":"\n

A group of researchers from Hokkaido University announced a significant advance in the recovery of phosphorus from the ashes resulting from the incineration of sludge in wastewater treatment plants<\/strong> , used for the generation of electrical energy<\/a><\/strong> . <\/strong>The study details an innovative method that overcomes the environmental and economic challenges of conventional techniques, such as chemical contamination and processing complexity.<\/p>\n\n

Role of volatilization in sludge thermal treatment<\/h2>\n\n

The team has built on previous research on the recovery of essential nutrients such as calcium, iron and magnesium through thermal treatment of sludge<\/strong> . Through detailed analysis, they discovered that the volatilization process<\/strong> (the selective conversion of elements to gaseous forms during treatment) could be key to effectively separating phosphorus from the rest of the ash<\/strong> .<\/p>\n\n

To delve deeper into this discovery, researchers at Hokkaido University<\/a><\/strong> experimented with different chemical conditions in the sludge ash, especially looking at the effects of adding carbon in a process that also involves chlorine. This approach allowed them to refine a method to isolate useful phosphorus compounds<\/strong> using alternating chlorination steps, with and without carbon.<\/p>\n\n

Green technology in wastewater treatment plants<\/h2>\n\n

According to Yuuki Mochizuki, lead author of the study, this technique promises to be more energy efficient,<\/strong> in addition to generating fewer CO\u2082 emissions and being more economical compared to traditional methods that extract phosphorus from phosphate minerals. The process produces high-quality phosphorus chloride,<\/strong> which can then be transformed into phosphoric acid simply by dissolving it in water.<\/p>\n\n

Whereas the amount of phosphorus in secondary resources such as steel slag, livestock manure and sewage sludge in Japan accounts for nearly half of all phosphorus imported into the country<\/strong> , Mochizuki and his team plan to evaluate whether their method could significantly decrease the nation’s dependence on phosphorus imports.<\/strong><\/p>\n\n

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Source: mining<\/strong><\/p>\n\n

Photo:<\/strong> Shutterstock<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

This new method could reduce the need for phosphorus imports in Japan, by taking advantage of local secondary resources<\/p>\n","protected":false},"author":9014,"featured_media":153522,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categoria_noticias":[13068,13032],"etiqueta_noticias":[],"class_list":["post-153672","noticias","type-noticias","status-publish","has-post-thumbnail","hentry","categoria_noticias-environment","categoria_noticias-management"],"acf":[],"_links":{"self":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/noticias\/153672","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/noticias"}],"about":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/types\/noticias"}],"author":[{"embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/users\/9014"}],"replies":[{"embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/comments?post=153672"}],"version-history":[{"count":0,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/noticias\/153672\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/media\/153522"}],"wp:attachment":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/media?parent=153672"}],"wp:term":[{"taxonomy":"categoria_noticias","embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/categoria_noticias?post=153672"},{"taxonomy":"etiqueta_noticias","embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/etiqueta_noticias?post=153672"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}