Precipitation of phosphate minerals from liquid swine manure is an established means of
\nreducing the orthophosphate (OP) concentration. This project investigated the usefulness
\nof a chemical equilibrium model, Visual Minteq, for prescribing the amendments needed to
\nmaximize struvite precipitation from liquid swine manure and thus reduce the OP
\nphosphorus concentration. The actual concentrations of Mg2+, Ca2+, K+, OP, NH4
\n+, alkalinity
\nand pH from a liquid swine manure system were used as inputs to the model. The model
\nwas modified to remove species with extremely low formation rates, because they would
\nnot significantly precipitate in the reaction occurring in a short retention-time process such
\nas those envisioned for swine manure struvite-formation reactors. Using the model\u2019s
\noutput, a series of 19-L reactors were used to verify the results. Verification results
\ndemonstrated that Visual Minteq can be used to pre-determine the concentration of
\namendments required to maximize struvite recovery.<\/p>\n","protected":false},"excerpt":{"rendered":"
Precipitation of phosphate minerals from liquid swine manure is an established means of reducing the orthophosphate (OP) concentration. This project investigated the usefulness of a chemical equilibrium model, Visual Minteq, for prescribing the amendments needed to maximize struvite precipitation from liquid swine manure and thus reduce the OP phosphorus concentration. The actual concentrations of Mg2+, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[8882,2854,24643,228,10452,231,4878,14166,1976,169,1063,1288,615,14784,188,13636,4467,4931,35,569,16537,20911,6053,20757],"class_list":["post-1231","post","type-post","status-publish","format-standard","hentry","category-environment","tag-al","tag-bin","tag-bing","tag-chemical","tag-chemical-equilibrium-swine-maure","tag-cover","tag-equilibrium","tag-ipek-celen-visual-minteq","tag-liquid","tag-manure","tag-mineral","tag-minerals","tag-model","tag-ness","tag-phosphorus","tag-project","tag-species","tag-struvite","tag-swine","tag-swine-manure","tag-swine-manure-struvite","tag-t","tag-use","tag-vision"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=1231"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1231\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=1231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=1231"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=1231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}