{"id":32732,"date":"2023-07-31T14:32:22","date_gmt":"2023-07-31T07:32:22","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=32732"},"modified":"2023-07-31T14:32:30","modified_gmt":"2023-07-31T07:32:30","slug":"phat-trien-phuong-phap-tai-che-rac-thai-nhua-moi","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/phat-trien-phuong-phap-tai-che-rac-thai-nhua-moi\/","title":{"rendered":"Ph\u00e1t tri\u1ec3n ph\u01b0\u01a1ng ph\u00e1p t\u00e1i ch\u1ebf r\u00e1c th\u1ea3i nh\u1ef1a m\u1edbi"},"content":{"rendered":"\n

C\u00e1c nh\u00e0 h\u00f3a h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Colorado Boulder, M\u1ef9 \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p m\u1edbi \u0111\u1ec3 t\u00e1i ch\u1ebf lo\u1ea1i nh\u1ef1a ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong chai soda v\u00e0 c\u00e1c lo\u1ea1i bao b\u00ec kh\u00e1c.<\/p>\n\n\n\n

\u0110\u1ed3ng t\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u Oana Luca cho bi\u1ebft, nghi\u00ean c\u1ee9u tr\u00ean c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 ng\u00e0y c\u00e0ng nhi\u1ec1u r\u00e1c th\u1ea3i nh\u1ef1a tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi. B\u1edfi theo C\u01a1 quan B\u1ea3o v\u1ec7 M\u00f4i tr\u01b0\u1eddng c\u1ee7a M\u1ef9, n\u01b0\u1edbc n\u00e0y \u0111\u00e3 th\u1ea3i ra g\u1ea7n 36 tri\u1ec7u t\u1ea5n s\u1ea3n ph\u1ea9m nh\u1ef1a v\u00e0o n\u0103m 2018. Ph\u1ea7n l\u1edbn r\u00e1c th\u1ea3i nh\u1ef1a \u0111\u01b0\u1ee3c \u0111\u01b0a \u0111\u1ebfn c\u00e1c b\u00e3i ch\u00f4n l\u1ea5p, theo \u0111\u1ed3ng t\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u Oana Luca.<\/p>\n\n\n\n

\u201cCh\u00fang ta t\u1ef1 an \u1ee7i m\u00ecnh khi n\u00e9m th\u1ee9 g\u00ec \u0111\u00f3 v\u00e0o th\u00f9ng t\u00e1i ch\u1ebf, nh\u01b0ng h\u1ea7u h\u1ebft nh\u1ef1a c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf \u0111\u00f3 kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c t\u00e1i ch\u1ebf. Ch\u00fang t\u00f4i mu\u1ed1n t\u00ecm hi\u1ec3u l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 kh\u00f4i ph\u1ee5c c\u00e1c v\u1eadt li\u1ec7u ph\u00e2n t\u1eed, c\u00e1c kh\u1ed1i c\u1ea5u t\u1ea1o c\u1ee7a nh\u1ef1a, \u0111\u1ec3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u1ea1i ch\u00fang\u201d, b\u00e0 Luca n\u00f3i.<\/p>\n\n\n\n

Trong nghi\u00ean c\u1ee9u m\u1edbi, b\u00e0 v\u00e0 \u0111\u1ed3ng nghi\u1ec7p \u0111\u00e3 ti\u1ebfn m\u1ed9t b\u01b0\u1edbc g\u1ea7n h\u01a1n t\u1edbi m\u1ee5c ti\u00eau tr\u00ean. Nh\u00f3m t\u1eadp trung v\u00e0o m\u1ed9t lo\u1ea1i nh\u1ef1a g\u1ecdi l\u00e0 polyetylen terephthalate (PET) m\u00e0 ng\u01b0\u1eddi ti\u00eau d\u00f9ng g\u1eb7p h\u00e0ng ng\u00e0y trong chai n\u01b0\u1edbc, v\u1ec9 thu\u1ed1c, th\u1eadm ch\u00ed m\u1ed9t s\u1ed1 lo\u1ea1i v\u1ea3i polyester. Trong c\u00e1c th\u00ed nghi\u1ec7m quy m\u00f4 nh\u1ecf t\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m, h\u1ecd tr\u1ed9n c\u00e1c m\u1ea3nh nh\u1ef1a \u0111\u00f3 v\u1edbi m\u1ed9t lo\u1ea1i ph\u00e2n t\u1eed \u0111\u1eb7c bi\u1ec7t, sau \u0111\u00f3 \u0111\u1eb7t m\u1ed9t \u0111i\u1ec7n \u00e1p nh\u1ecf. Trong v\u00f2ng v\u00e0i ph\u00fat, PET b\u1eaft \u0111\u1ea7u tan r\u00e3.<\/p>\n\n\n\n

Nh\u00f3m c\u00f2n r\u1ea5t nhi\u1ec1u vi\u1ec7c ph\u1ea3i l\u00e0m tr\u01b0\u1edbc khi c\u00f4ng c\u1ee5 t\u00e1i ch\u1ebf c\u1ee7a h\u1ecd c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 r\u00e1c th\u1ea3i nh\u1ef1a tr\u00ean th\u1ebf gi\u1edbi m\u1ed9t c\u00e1ch th\u1ef1c t\u1ebf. Phuc Pham, nghi\u00ean c\u1ee9u sinh ti\u1ebfn s\u0129 h\u00f3a h\u1ecdc v\u00e0 l\u00e0 t\u00e1c gi\u1ea3 ch\u00ednh c\u1ee7a nghi\u00ean c\u1ee9u cho bi\u1ebft, vi\u1ec7c quan s\u00e1t \u0111\u01b0\u1ee3c ti\u1ebfn tr\u00ecnh ph\u1ea3n \u1ee9ng trong th\u1eddi gian th\u1ef1c l\u00e0 \u0111i\u1ec1u tuy\u1ec7t v\u1eddi.<\/p>\n\n\n\n

\u0110\u1ea7u ti\u00ean, dung d\u1ecbch chuy\u1ec3n sang m\u00e0u h\u1ed3ng \u0111\u1eadm, sau \u0111\u00f3 tr\u1edf n\u00ean trong su\u1ed1t khi polymer v\u1ee1 ra. Th\u1eadt th\u00fa v\u1ecb khi xem r\u00e1c th\u1ea3i, th\u1ee9 c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong \u0111\u1ed1ng r\u00e1c h\u00e0ng th\u1ebf k\u1ef7 bi\u1ebfn m\u1ea5t ch\u1ec9 trong v\u00e0i gi\u1edd ho\u1eb7c v\u00e0i ng\u00e0y.<\/p>\n\n\n\n

\"\"<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a nh\u00f3m d\u1ef1a v\u00e0o \u0111i\u1ec7n v\u00e0 m\u1ed9t s\u1ed1 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc.<\/em> <\/h2>\n\n\n\n

B\u00e0 Luca nh\u1ea5n m\u1ea1nh, th\u00f9ng r\u00e1c t\u00e1i ch\u1ebf c\u00f3 th\u1ec3 gi\u1ed1ng nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p t\u1ed1t cho v\u1ea5n \u0111\u1ec1 r\u00e1c th\u1ea3i nh\u1ef1a c\u1ee7a th\u1ebf gi\u1edbi. Tuy nhi\u00ean, h\u1ea7u h\u1ebft \u0111\u00f4 th\u1ecb tr\u00ean th\u1ebf gi\u1edbi ph\u1ea3i v\u1eadt l\u1ed9n \u0111\u1ec3 thu gom v\u00e0 ph\u00e2n lo\u1ea1i n\u00fai r\u00e1c \u0111\u01b0\u1ee3c th\u1ea3i ra h\u00e0ng ng\u00e0y.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 l\u00e0 ch\u01b0a \u0111\u1ebfn 1\/3 t\u1ed5ng s\u1ed1 nh\u1ef1a PET \u1edf M\u1ef9 \u0111\u1ebfn g\u1ea7n \u0111\u01b0\u1ee3c v\u1edbi vi\u1ec7c t\u00e1i ch\u1ebf (c\u00e1c lo\u1ea1i nh\u1ef1a kh\u00e1c th\u1eadm ch\u00ed c\u00f2n \u1edf xa h\u01a1n). Ngay c\u1ea3 khi \u0111\u00f3, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nh\u01b0 n\u1ea5u ch\u1ea3y r\u00e1c th\u1ea3i nh\u1ef1a ho\u1eb7c h\u00f2a tan n\u00f3 trong axit c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd.<\/p>\n\n\n\n

Ngo\u00e0i ra, ng\u01b0\u1eddi ta s\u1ebd thay \u0111\u1ed5i v\u1eadt li\u1ec7u m\u1ed9t c\u00e1ch m\u00e1y m\u00f3c. S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p t\u00e1i ch\u1ebf hi\u1ec7n t\u1ea1i, v\u00ed d\u1ee5 nh\u01b0 n\u1ea5u ch\u1ea3y m\u1ed9t chai nh\u1ef1a, b\u1ea1n c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t m\u1ed9t trong nh\u1eefng lo\u1ea1i t\u00fai nh\u1ef1a d\u00f9ng m\u1ed9t l\u1ea7n th\u01b0\u1eddng c\u00f3 trong c\u00e1c c\u1eeda h\u00e0ng t\u1ea1p h\u00f3a. Ng\u01b0\u1ee3c l\u1ea1i, b\u00e0 Luca v\u00e0 nh\u00f3m c\u1ee7a m\u00ecnh mu\u1ed1n t\u00ecm c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n t\u1eeb chai nh\u1ef1a c\u0169 \u0111\u1ec3 t\u1ea1o ra chai nh\u1ef1a m\u1edbi. N\u00f3 gi\u1ed1ng nh\u01b0 \u0111\u1eadp v\u1ee1 m\u1ed9t l\u00e2u \u0111\u00e0i b\u1eb1ng c\u00e1c m\u1ea3nh gh\u00e9p Lego r\u1ed3i l\u1ea5y c\u00e1c m\u1ea3nh \u0111\u00f3 \u0111\u1ec3 t\u1ea1o ra m\u1ed9t t\u00f2a nh\u00e0 ho\u00e0n to\u00e0n m\u1edbi.<\/p>\n\n\n\n

\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ef3 t\u00edch tr\u00ean, nh\u00f3m \u0111\u00e3 chuy\u1ec3n sang qu\u00e1 tr\u00ecnh g\u1ecdi l\u00e0 \u0111i\u1ec7n ph\u00e2n, ho\u1eb7c s\u1eed d\u1ee5ng \u0111i\u1ec7n \u0111\u1ec3 ph\u00e1 v\u1ee1 c\u00e1c ph\u00e2n t\u1eed. V\u00ed d\u1ee5, c\u00e1c nh\u00e0 h\u00f3a h\u1ecdc t\u1eeb l\u00e2u \u0111\u00e3 bi\u1ebft h\u1ecd c\u00f3 th\u1ec3 cho m\u1ed9t hi\u1ec7u \u0111i\u1ec7n th\u1ebf v\u00e0o c\u00e1c c\u1ed1c ch\u1ee9a \u0111\u1ea7y n\u01b0\u1edbc v\u00e0 mu\u1ed1i \u0111\u1ec3 t\u00e1ch c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc \u0111\u00f3 th\u00e0nh kh\u00ed hydro v\u00e0 oxy.<\/p>\n\n\n\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111ang c\u1ed1 g\u1eafng hi\u1ec3u ch\u00ednh x\u00e1c nh\u1eefng ph\u1ea3n \u1ee9ng n\u00e0y di\u1ec5n ra nh\u01b0 th\u1ebf n\u00e0o. Tuy nhi\u00ean, h\u1ecd \u0111\u00e3 c\u00f3 th\u1ec3 chia nh\u1ecf PET th\u00e0nh c\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng c\u01a1 b\u1ea3n c\u1ee7a n\u00f3. Sau \u0111\u00f3 nh\u00f3m c\u00f3 th\u1ec3 ph\u1ee5c h\u1ed3i nh\u1eefng kh\u1ed1i n\u00e0y v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 t\u1ea1o ra th\u1ee9 g\u00ec \u0111\u00f3 m\u1edbi.<\/p>\n\n\n\n

B\u00e0 Luca cho r\u1eb1ng, n\u1ebfu th\u00e0nh c\u00f4ng, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n h\u00f3a s\u1ebd ph\u00e2n h\u1ee7y nhi\u1ec1u lo\u1ea1i nh\u1ef1a kh\u00e1c nhau c\u00f9ng l\u00fac. B\u1eb1ng c\u00e1ch \u0111\u00f3, ch\u00fang ta c\u00f3 th\u1ec3 \u0111\u1ebfn nh\u1eefng b\u00e3i r\u00e1c kh\u1ed5ng l\u1ed3 trong \u0111\u1ea1i d\u01b0\u01a1ng, k\u00e9o t\u1ea5t c\u1ea3 r\u00e1c th\u1ea3i \u1edf \u0111\u00f3 v\u00e0o m\u1ed9t l\u00f2 ph\u1ea3n \u1ee9ng v\u00e0 thu l\u1ea1i r\u1ea5t nhi\u1ec1u ph\u00e2n t\u1eed h\u1eefu \u00edch.<\/p>\n\n\n\n

B\u1ea3o L\u00e2m<\/strong><\/p>\n\n\n\n

https:\/\/vietq.vn\/phat-trien-phuong-phap-tai-che-rac-thai-nhua-moi-d212771.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 h\u00f3a h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Colorado Boulder, M\u1ef9 \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p m\u1edbi \u0111\u1ec3 t\u00e1i ch\u1ebf lo\u1ea1i nh\u1ef1a ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong chai soda v\u00e0 c\u00e1c lo\u1ea1i bao b\u00ec kh\u00e1c. \u0110\u1ed3ng t\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u Oana Luca cho bi\u1ebft, nghi\u00ean c\u1ee9u tr\u00ean c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 ng\u00e0y […]<\/p>\n","protected":false},"author":26,"featured_media":32733,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-32732","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/32732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=32732"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/32732\/revisions"}],"predecessor-version":[{"id":32734,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/32732\/revisions\/32734"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/32733"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=32732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=32732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=32732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}