{"id":132449,"date":"2024-07-17T07:57:56","date_gmt":"2024-07-17T04:57:56","guid":{"rendered":"https:\/\/tietopankki.crnet.fi\/fi\/news\/researchers-extract-gold-from-e-waste-using-cheesemaking-byproduct\/"},"modified":"2024-07-17T07:57:56","modified_gmt":"2024-07-17T04:57:56","slug":"researchers-extract-gold-from-e-waste-using-cheesemaking-byproduct","status":"publish","type":"post","link":"https:\/\/tietopankki.crnet.fi\/en\/news\/researchers-extract-gold-from-e-waste-using-cheesemaking-byproduct\/","title":{"rendered":"Researchers extract gold from e-waste using cheesemaking byproduct"},"content":{"rendered":"<div class=\"mp_wrapper\">\n  <div class=\"mepr-unauthorized-message\">\n    <p>You are unauthorized to view this page.<\/p>\n  <\/div>\n  <div class=\"mepr-login-form-wrap\">\n            \n<div class=\"mp_wrapper mp_login_form\">\n                  <!-- mp-login-form-start -->     <form name=\"mepr_loginform\" id=\"mepr_loginform\" class=\"mepr-form\" action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\" method=\"post\" data-trp-original-action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\">\n            <div class=\"mp-form-row mepr_username\">\n        <div class=\"mp-form-label\">\n                              <label for=\"user_login\">Username<\/label>\n        <\/div>\n        <input type=\"text\" name=\"log\" id=\"user_login\" value=\"\" \/>\n      <\/div>\n      <div class=\"mp-form-row mepr_password\">\n        <div class=\"mp-form-label\">\n          <label for=\"user_pass\">Password<\/label>\n          <div class=\"mp-hide-pw\">\n            <input type=\"password\" name=\"pwd\" id=\"user_pass\" value=\"\" \/>\n            <button type=\"button\" class=\"button mp-hide-pw hide-if-no-js\" data-toggle=\"0\" aria-label=\"Show password\">\n              <span class=\"dashicons dashicons-visibility\" aria-hidden=\"true\"><\/span>\n            <\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n            <div>\n        <label><input name=\"rememberme\" type=\"checkbox\" id=\"rememberme\" value=\"forever\" \/> Remember Me<\/label>\n      <\/div>\n      <div class=\"mp-spacer\">&nbsp;<\/div>\n      <div class=\"submit\">\n        <input type=\"submit\" name=\"wp-submit\" id=\"wp-submit\" class=\"button-primary mepr-share-button\" value=\"Log In\" \/>\n        <input type=\"hidden\" name=\"redirect_to\" value=\"\/en\/wp-json\/wp\/v2\/posts\/132449\" \/>\n        <input type=\"hidden\" name=\"mepr_process_login_form\" value=\"true\" \/>\n        <input type=\"hidden\" name=\"mepr_is_login_page\" value=\"false\" \/>\n      <\/div>\n    <input type=\"hidden\" name=\"trp-form-language\" value=\"en\"\/><\/form>\n    <div class=\"mp-spacer\">&nbsp;<\/div>\n    <div class=\"mepr-login-actions\">\n        <a\n          href=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/?action=forgot_password\"\n          title=\"Click here to reset your password\"\n        >\n          Forgot Password        <\/a>\n    <\/div>\n\n      \n    <!-- mp-login-form-end --> \n  <\/div>\n      <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<div class=\"smart_content_wrapper\">\n<p>Researchers at the Swiss Federal Institute of Technology (ETH Zurich) have developed an innovative and sustainable method to recover gold from electronic waste. In a paper published in Advanced Materials, scientists at ETH Zurich used a protein fibril sponge derived from whey, a byproduct of the cheese industry.<\/p>\n<p>Extracting gold from electronic waste is a complex and often hazardous process that uses harmful chemicals such as nitric and hydrochloric acids and cyanide solutions to strip away the plastic and other non-metal components from the shredded electronic waste and then isolate and recover the gold. The Swiss researchers, led by Professor Raffaele Mezzenga, created a sponge by denaturing whey proteins causing them to aggregate into nanofibrils.<\/p>\n<p>Gold ions in a solution of mixed metals adhered to the protein fibres much more efficiently than ions of other metals. The sponge was then heated, reducing the gold ions into flakes, which were melted down into almost pure gold. Efficient recovery of precious metals from electronic waste is a priority given the rising demand for gold and the energy-intensive, toxic methods employed in its extraction from e-waste. They now plan to refine the process further and explore other potential sources of gold, including industrial waste from microchip and gold-plating processes, as well as looking at alternative materials to create the protein fibril sponge.<\/p>\n<p>Source: <a rel=\"noopener\" href=\"https:\/\/resource.co\/article\/reconomy-puts-forward-10-point-framework-reform-uk-circular-economy\">Computing<\/a><\/p>\n<\/div>\n<p>The post <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\/environmental-news-en\/4-557\/\">Researchers extract gold from e-waste using cheesemaking byproduct<\/a> appeared first on <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\">Vastuullisuusuutiset.fi<\/a>.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[5350,15310,575,4065,1122],"class_list":["post-132449","post","type-post","status-publish","format-standard","hentry","category-news","tag-byproduct","tag-cheese","tag-environmental-news-en","tag-ewaste","tag-gold"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/132449","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/comments?post=132449"}],"version-history":[{"count":0,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/132449\/revisions"}],"wp:attachment":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/media?parent=132449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/categories?post=132449"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/tags?post=132449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}