{"id":135045,"date":"2024-11-15T14:08:11","date_gmt":"2024-11-15T06:08:11","guid":{"rendered":"https:\/\/www.alpapowder.com\/135045\/"},"modified":"2024-11-15T14:08:12","modified_gmt":"2024-11-15T06:08:12","slug":"canxi-oxit-tien-phong-sang-tao-trong-bao-ve-moi-truong","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/135045\/","title":{"rendered":"Canxi oxit: ti\u00ean phong s\u00e1ng t\u1ea1o trong b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng"},"content":{"rendered":"

\"\"<\/p>\n

Canxi oxit, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u00f4i s\u1ed1ng, l\u00e0 ch\u1ea5t r\u1eafn m\u00e0u tr\u1eafng ho\u1eb7c tr\u1eafng x\u00e1m c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc m\u1ea1nh. N\u00f3 c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o th\u00e0nh canxi hydroxit v\u00e0 gi\u1ea3i ph\u00f3ng r\u1ea5t nhi\u1ec1u nhi\u1ec7t.<\/p>\n

\u0110\u1eb7c t\u00ednh ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u01a1 b\u1ea3n n\u00e0y l\u00e0 c\u01a1 s\u1edf cho th\u00e0nh c\u00f4ng to l\u1edbn c\u1ee7a n\u00f3 trong l\u0129nh v\u1ef1c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n

Trong l\u0129nh v\u1ef1c x\u1eed l\u00fd n\u01b0\u1edbc, canxi oxit \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng phi th\u01b0\u1eddng.<\/p>\n

B\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh gi\u00e1 tr\u1ecb pH c\u1ee7a c\u00e1c v\u00f9ng n\u01b0\u1edbc, n\u00f3 c\u00f3 th\u1ec3 trung h\u00f2a hi\u1ec7u qu\u1ea3 n\u01b0\u1edbc th\u1ea3i c\u00f3 t\u00ednh axit v\u00e0 gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i do axit h\u00f3a n\u01b0\u1edbc g\u00e2y ra cho h\u1ec7 sinh th\u00e1i d\u01b0\u1edbi n\u01b0\u1edbc.<\/p>\n

\u0110\u1ed3ng th\u1eddi, canxi oxit c\u0169ng c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m nh\u01b0 ion kim lo\u1ea1i n\u1eb7ng v\u00e0 photphat trong c\u00e1c v\u00f9ng n\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c ch\u1ea5t k\u1ebft t\u1ee7a kh\u00f4ng tan trong n\u01b0\u1edbc, do \u0111\u00f3 lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t c\u00f3 h\u1ea1i n\u00e0y v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc.<\/p>\n

\u0110\u1eb7c t\u00ednh n\u00e0y khi\u1ebfn canxi oxit tr\u1edf th\u00e0nh nguy\u00ean li\u1ec7u th\u00f4 quan tr\u1ecdng \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i v\u00e0 l\u1ecdc n\u01b0\u1edbc u\u1ed1ng, cung c\u1ea5p gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m v\u00e0 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean n\u01b0\u1edbc.<\/p>\n

Canxi oxit c\u0169ng \u0111\u00f3ng vai tr\u00f2 kh\u00f4ng th\u1ec3 thay th\u1ebf trong x\u1eed l\u00fd ch\u1ea5t th\u1ea3i r\u1eafn.<\/p>\n

N\u00f3 c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c ch\u1ea5t c\u00f3 t\u00ednh axit trong ch\u1ea5t th\u1ea3i nguy h\u1ea1i \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9c t\u00ednh c\u1ee7a ch\u00fang v\u00e0 trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, th\u00f4ng qua qu\u00e1 tr\u00ecnh nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao, n\u00f3 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i ch\u1ea5t th\u1ea3i th\u00e0nh v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng c\u00f3 gi\u00e1 tr\u1ecb ho\u1eb7c ch\u1ea5t h\u1ea5p ph\u1ee5 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau t\u00e1i ch\u1ebf t\u00e0i nguy\u00ean.<\/p>\n

\u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m gi\u1ea3m \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng do ch\u00f4n l\u1ea5p v\u00e0 \u0111\u1ed1t m\u00e0 c\u00f2n th\u00fac \u0111\u1ea9y vi\u1ec7c s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean b\u1ec1n v\u1eefng.<\/p>\n

Tr\u01b0\u1edbc th\u00e1ch th\u1ee9c c\u1ee7a t\u00ecnh tr\u1ea1ng n\u00f3ng l\u00ean to\u00e0n c\u1ea7u, canxi oxit c\u0169ng cho th\u1ea5y ti\u1ec1m n\u0103ng trong c\u00f4ng ngh\u1ec7 thu gi\u1eef v\u00e0 l\u01b0u tr\u1eef carbon (CCS).<\/p>\n

B\u1eb1ng c\u00e1ch ph\u1ea3n \u1ee9ng v\u1edbi carbon dioxide \u0111\u1ec3 t\u1ea1o th\u00e0nh canxi cacbonat, canxi oxit c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t h\u1ea5p th\u1ee5 carbon dioxide hi\u1ec7u qu\u1ea3.<\/p>\n

M\u1eb7c d\u00f9 c\u00f4ng ngh\u1ec7 n\u00e0y v\u1eabn \u0111ang trong giai \u0111o\u1ea1n nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n, nh\u01b0ng chi ph\u00ed th\u1ea5p v\u00e0 hi\u1ec7u qu\u1ea3 cao c\u1ee7a n\u00f3 cung c\u1ea5p nh\u1eefng \u00fd t\u01b0\u1edfng m\u1edbi \u0111\u1ec3 gi\u1ea3m thi\u1ec3u kh\u00ed th\u1ea3i nh\u00e0 k\u00ednh.<\/p>\n

Trong n\u00f4ng nghi\u1ec7p, canxi oxit, nh\u01b0 m\u1ed9t ch\u1ea5t c\u1ea3i t\u1ea1o \u0111\u1ea5t, c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t, t\u0103ng \u0111\u1ed9 ph\u00ec nhi\u00eau c\u1ee7a \u0111\u1ea5t v\u00e0 th\u00fac \u0111\u1ea9y c\u00e2y tr\u1ed3ng ph\u00e1t tri\u1ec3n.<\/p>\n

N\u00f3 c\u0169ng c\u00f3 th\u1ec3 ti\u00eau di\u1ec7t hi\u1ec7u qu\u1ea3 vi khu\u1ea9n v\u00e0 k\u00fd sinh tr\u00f9ng c\u00f3 h\u1ea1i trong \u0111\u1ea5t, gi\u1ea3m vi\u1ec7c s\u1eed d\u1ee5ng thu\u1ed1c tr\u1eeb s\u00e2u v\u00e0 th\u00fac \u0111\u1ea9y n\u00f4ng nghi\u1ec7p ph\u00e1t tri\u1ec3n theo h\u01b0\u1edbng th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 b\u1ec1n v\u1eefng h\u01a1n.<\/p>\n

V\u1edbi s\u1ef1 ti\u1ebfn b\u1ed9 c\u1ee7a khoa h\u1ecdc c\u00f4ng ngh\u1ec7 v\u00e0 n\u00e2ng cao nh\u1eadn th\u1ee9c v\u1ec1 m\u00f4i tr\u01b0\u1eddng, \u1ee9ng d\u1ee5ng canxi oxit trong l\u0129nh v\u1ef1c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng s\u1ebd tr\u1edf n\u00ean r\u1ed9ng r\u00e3i v\u00e0 chuy\u00ean s\u00e2u h\u01a1n.<\/p>\n

T\u1eeb l\u1ecdc n\u01b0\u1edbc \u0111\u1ebfn x\u1eed l\u00fd ch\u1ea5t th\u1ea3i r\u1eafn, t\u1eeb c\u00f4ng ngh\u1ec7 thu gi\u1eef carbon \u0111\u1ebfn c\u1ea3i ti\u1ebfn n\u00f4ng nghi\u1ec7p, canxi oxit \u0111ang tr\u1edf th\u00e0nh c\u1ea7u n\u1ed1i gi\u1eefa thi\u00ean nhi\u00ean v\u00e0 c\u00f4ng ngh\u1ec7, qu\u00e1 kh\u1ee9 v\u00e0 t\u01b0\u01a1ng lai v\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3. Ch\u00fang ta c\u00f3 l\u00fd do \u0111\u1ec3 tin r\u1eb1ng trong t\u01b0\u01a1ng lai g\u1ea7n, canxi oxit s\u1ebd t\u1ecfa s\u00e1ng trong nhi\u1ec1u l\u0129nh v\u1ef1c h\u01a1n v\u00e0 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1c l\u01b0\u1ee3ng quan tr\u1ecdng trong vi\u1ec7c th\u00fac \u0111\u1ea9y b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng to\u00e0n c\u1ea7u.<\/p>\n

Trong th\u1eddi \u0111\u1ea1i \u0111\u1ea7y th\u00e1ch th\u1ee9c v\u00e0 c\u01a1 h\u1ed9i n\u00e0y, ch\u00fang ta h\u00e3y ch\u00fa \u00fd v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c v\u1eadt li\u1ec7u v\u00e0 c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn nh\u01b0 canxi oxit, v\u1ed1n kh\u00f4ng d\u1ec5 th\u1ea5y nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 to l\u1edbn trong l\u0129nh v\u1ef1c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00f9ng nhau t\u1ea1o ra m\u1ed9t ng\u00f4i nh\u00e0 xanh h\u01a1n v\u00e0 l\u00e0nh m\u1ea1nh h\u01a1n tr\u00ean Tr\u00e1i \u0111\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"

Canxi oxit, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u00f4i s\u1ed1ng, l\u00e0 ch\u1ea5t r\u1eafn m\u00e0u tr\u1eafng ho\u1eb7c tr\u1eafng x\u00e1m c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc m\u1ea1nh.<\/p>\n","protected":false},"author":7,"featured_media":135009,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-135045","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/135045","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=135045"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/135045\/revisions"}],"predecessor-version":[{"id":135046,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/135045\/revisions\/135046"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/135009"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=135045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=135045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=135045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}