{"id":132271,"date":"2026-03-18T14:01:06","date_gmt":"2026-03-18T14:01:06","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/132271\/"},"modified":"2026-03-18T14:01:06","modified_gmt":"2026-03-18T14:01:06","slug":"sveitsi-teadlased-leidsid-viisi-kuidas-vanadest-arvutitest-kulda-katte-saada","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/132271\/","title":{"rendered":"\u0160veitsi teadlased leidsid viisi, kuidas vanadest arvutitest kulda k\u00e4tte saada"},"content":{"rendered":"<p>Z\u00fcrichi \u0160veitsi f\u00f6deraalset tehnoloogiainstituudi teadlased t\u00f6\u00f6tasid v\u00e4lja meetodi, mis v\u00f5imaldab vanadest arvutite emaplaatidest kulda k\u00e4tte saada, kasutades selleks juustutootmise k\u00f5rvalsaadust vadakut. Uurijad muutsid vadakuvalgud spetsiaalseks k\u00e4snataoliseks materjaliks, mis seob lahusest kullaioone paremini kui teisi metalle, <a rel=\"noopener follow nofollow\" target=\"_blank\" href=\"https:\/\/indiandefencereview.com\/scientists-extract-22-carat-gold-from-electronic-waste\/\" data-rel-date-range=\"[]\">kirjutab <\/a>Indian Defence Review.<\/p>\n<p>Katsetes suutsid teadlased 20 kasutuselt k\u00f5rvaldatud emaplaadist eraldada umbes 450 milligrammi metalli, mis sisaldas ligikaudu 91 protsenti kulda ja vastas 22-karaadisele kullale. Teadlaste s\u00f5nul on meetod huvitav seet\u00f5ttu, et \u00fchendab kaks j\u00e4\u00e4tmevoogu: elektroonikaromu ja toidut\u00f6\u00f6stuse j\u00e4\u00e4gid.<\/p>\n<p>Tavap\u00e4raselt kasutatakse elektroonikaj\u00e4\u00e4tmetest metallide k\u00e4ttesaamiseks k\u00f5rget kuumust v\u00f5i m\u00fcrgiseid kemikaale, mis teeb protsessi kalliks ja keskkonnale koormavaks. Z\u00fcrichi teadlaste s\u00f5nul v\u00f5ib nende lahendus pakkuda m\u00e4rksa s\u00e4\u00e4stlikumat alternatiivi, mida oleks v\u00f5imalik tulevikus ka t\u00f6\u00f6stuslikult rakendada.<\/p>\n<p>Uurijad usuvad, et sama p\u00f5him\u00f5tet v\u00f5iks edaspidi kasutada ka teiste v\u00e4\u00e4rtuslike metallide, n\u00e4iteks plaatina ja pallaadiumi eraldamiseks. Nende hinnangul on tehnoloogia turule j\u00f5udmiseks juba \u00fcsna k\u00fcps.<\/p>\n<p>Keskmises lauaarvutis v\u00f5ib olla umbes 0,2\u20130,5 grammi kulda, mida kasutatakse peamiselt emaplaadi ja kiipide kontaktides, sest kuld juhib h\u00e4sti elektrit, ei roosteta ning tagab usaldusv\u00e4\u00e4rse \u00fchenduse ka v\u00e4ga v\u00e4ikeste voolude puhul. S\u00fclearvutis on tavaliselt umbes 0,1\u20130,3 grammi kulda.<\/p>\n<p>Kuidas see lugu Sind end tundma pani? Saada <a href=\"https:\/\/forte.delfi.ee\/artikkel\/120443095\/sveitsi-teadlased-leidsid-viisi-kuidas-vanadest-arvutitest-kulda-katte-saada\/kommentaarid\" class=\"article-body-bottom__comment article-body-bottom__comment--write button button--primary button--size-auto\" rel=\"nofollow noopener\" target=\"_blank\"> Kommenteeri <\/a><a href=\"https:\/\/forte.delfi.ee\/artikkel\/120443095\/sveitsi-teadlased-leidsid-viisi-kuidas-vanadest-arvutitest-kulda-katte-saada\/kommentaarid\" class=\"article-body-bottom__comment article-body-bottom__comment--read button button--size-auto\" rel=\"nofollow noopener\" target=\"_blank\"> Loe kommentaare <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Z\u00fcrichi \u0160veitsi f\u00f6deraalset tehnoloogiainstituudi teadlased t\u00f6\u00f6tasid v\u00e4lja meetodi, mis v\u00f5imaldab vanadest arvutite emaplaatidest kulda k\u00e4tte saada, kasutades selleks&hellip;\n","protected":false},"author":2,"featured_media":132272,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[14],"tags":[131,130,37,33,35,34,36,3586],"class_list":["post-132271","post","type-post","status-publish","format-standard","has-post-thumbnail","category-ari","tag-ari","tag-business","tag-ee","tag-eesti","tag-eesti-keel","tag-estonia","tag-estonian","tag-kuld"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/116250547803619155","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/132271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=132271"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/132271\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/132272"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=132271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=132271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=132271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}