{"id":149,"date":"2014-11-04T18:23:21","date_gmt":"2014-11-04T18:23:21","guid":{"rendered":"http:\/\/puyallup.wsu.edu\/lnm\/?page_id=149"},"modified":"2018-05-24T16:45:13","modified_gmt":"2018-05-24T16:45:13","slug":"struvite-extraction","status":"publish","type":"page","link":"https:\/\/puyallup.wsu.edu\/lnm\/struvite-extraction\/","title":{"rendered":"Struvite Extraction"},"content":{"rendered":"<section id=\"builder-section-1527179792072\" class=\"row single h1-header gutter pad-top\">\n<div style=\"\" class=\"column one \">\n<h1>Struvite Extraction<\/h1>\n<\/p><\/div>\n<\/section>\n<section id=\"builder-section-1415125336202\" class=\"row side-right gutter pad-top\">\n<div style=\"\" class=\"column one \">\n<h2>Phosphorus Recovery as Struvite<\/h2>\n<p>Struvite is formed from liquid dairy manure after anaerobic digestion at extraction efficiencies of 60 to 80%. The current focus is to achieve high rates of extraction efficiency at a low cost of production. Can phosphorus be removed from liquid dairy manure for off-farm transport? On most dairy farms the amount of phosphorus in dairy manure in excess of what can be used for crop production. Continued application of the manure at nitrogen based rates can result in build-up of phosphorus in soil. Once the soil is saturated with phosphorus it then is at risk of loss to surface and ground water.<\/p>\n<h2>Approach<\/h2>\n<p>Utilize a fluidized bed technology to remove phosphorus from liquid dairy manure in the form of struvite. Struvite is an \u201ceasy to handle\u201d form of slow release phosphorus which can be shipped off farm. The chemical formula for struvite is MgNH<sub>4<\/sub>PO<sub>4<\/sub>\u00b76(H<sub>2<\/sub>O).<\/p>\n<\/p><\/div>\n<div style=\"\" class=\"column two \">\n<figure id=\"attachment_119\" aria-describedby=\"caption-attachment-119\" style=\"width: 396px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite1.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-119 size-medium\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite1-396x231.jpg\" alt=\"Larger image of struvite extraction facility.\" width=\"396\" height=\"231\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite1-396x231.jpg 396w, https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite1.jpg 616w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/a><figcaption id=\"caption-attachment-119\" class=\"wp-caption-text\">Struvite extraction cones and tanks.<\/figcaption><\/figure>\n<figure id=\"attachment_120\" aria-describedby=\"caption-attachment-120\" style=\"width: 396px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite2.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-120 size-medium\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite2-396x231.jpg\" alt=\"Larger image of hands holding processed struvite.\" width=\"396\" height=\"231\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite2-396x231.jpg 396w, https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/346\/2014\/11\/Struvite2.jpg 616w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/a><figcaption id=\"caption-attachment-120\" class=\"wp-caption-text\">Hands holding sand-like processed struvite.<\/figcaption><\/figure>\n<\/p><\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p> Struvite Extraction<\/p>\n<h2>Phosphorus Recovery as Struvite<\/h2>\n<p>Struvite is formed from liquid dairy manure after anaerobic digestion at extraction efficiencies of 60 to 80%. The current focus is to achieve &#8230; <a href=\"https:\/\/puyallup.wsu.edu\/lnm\/struvite-extraction\/\" class=\"more-link\"><span class=\"more-default\">&raquo; More &#8230;<\/span><\/a><\/p>\n","protected":false},"author":65,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-builder.php","meta":[],"wsuwp_university_location":[],"wsuwp_university_org":[],"_links":{"self":[{"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/pages\/149"}],"collection":[{"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/users\/65"}],"replies":[{"embeddable":true,"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/comments?post=149"}],"version-history":[{"count":6,"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/pages\/149\/revisions"}],"predecessor-version":[{"id":388,"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/pages\/149\/revisions\/388"}],"wp:attachment":[{"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/media?parent=149"}],"wp:term":[{"taxonomy":"wsuwp_university_location","embeddable":true,"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/wsuwp_university_location?post=149"},{"taxonomy":"wsuwp_university_org","embeddable":true,"href":"https:\/\/puyallup.wsu.edu\/lnm\/wp-json\/wp\/v2\/wsuwp_university_org?post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}