N\u00f3i \u0111\u1ebfn h\u1ea7m m\u1ecf ch\u00fang ta ngh\u0129 ngay s\u1ebd m\u1ed9t c\u1ea3nh t\u01b0\u1ee3ng m\u00e1y m\u00f3c ch\u1ea1y \u1ea7m \u1ea7m tr\u00ean c\u00f4ng tr\u01b0\u1eddng, nh\u1eefng chi\u1ebfc c\u1ea7n c\u1ea9u to l\u1edbn chuy\u1ec3n m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn qu\u1eb7ng l\u00ean nh\u1eefng chi\u1ebfc xe t\u1ea3i\u2026<\/p>\n\n\n\n
Song ph\u01b0\u01a1ng th\u1ee9c khai th\u00e1c m\u1ecf ki\u1ec3u n\u00e0y ch\u1ec9 th\u00edch h\u1ee3p v\u1edbi khai th\u00e1c qu\u1eb7ng gi\u00e0u, c\u00f2n \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 qu\u1eb7ng ngh\u00e8o th\u00ec chi ph\u00ed m\u00e1y m\u00f3c khai th\u00e1c qu\u1eb7ng v\u00e0 tinh luy\u1ec7n kim lo\u1ea1i ph\u1ea3i tr\u1ea3 r\u1ea5t cao, m\u1ea5t \u0111i gi\u00e1 tr\u1ecb kinh t\u1ebf c\u1ee7a khai th\u00e1c. Trong tr\u01b0\u1eddng h\u1ee3p nh\u01b0 v\u1eady, c\u00e1c nh\u00e0 khoa h\u1ecdc li\u1ec1n l\u1ee3i d\u1ee5ng sinh v\u1eadt \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 kh\u00f3 n\u00e0y.<\/p>\n\n\n\n
V\u00ed d\u1ee5 nh\u01b0 c\u00f3 m\u1ed9t s\u1ed1 qu\u1eb7ng \u0111\u1ed3ng c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed3ng r\u1ea5t th\u1ea5p, kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb chi\u1ebft xu\u1ea5t, nh\u01b0ng c\u0169ng kh\u00f4ng th\u1ec3 \u0111\u1ec3 l\u00e3ng ph\u00ed. L\u00fac n\u00e0y vi khu\u1ea9n c\u00f3 th\u1ec3 ph\u00e1t huy \u0111\u01b0\u1ee3c t\u00e1c d\u1ee5ng \u0111\u1eb7c bi\u1ec7t c\u1ee7a m\u00ecnh. Ng\u01b0\u1eddi ta \u0111\u1ec3 qu\u1eb7ng ch\u1ea5t \u0111\u1ed1ng trong n\u01b0\u1edbc ao, \u0111\u1ec3 m\u1ed9t s\u1ed1 vi khu\u1ea9n \u0111\u1eb7c bi\u1ec7t sinh s\u00f4i nhi\u1ec1u trong n\u01b0\u1edbc ao, ch\u00fang bi\u1ebfn sunfuar\u01a1 (\u0111ioxit l\u01b0u hu\u1ef3nh) th\u00e0nh axit sunfuric, m\u00e0 dung d\u1ecbch axit sunfuric c\u00f3 th\u1ec3 ho\u00e0 tan \u0111\u1ed3ng trong qu\u1eb7ng \u0111\u1ed3ng th\u00e0nh dung d\u1ecbch sunfat \u0111\u1ed3ng. Nh\u01b0 v\u1eady, vi\u1ec7c chi\u1ebft xu\u1ea5t \u0111\u1ed3ng t\u1eeb trong sunfat \u0111\u1ed3ng \u0111\u01a1n gi\u1ea3n h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n
Sinh v\u1eadt khai th\u00e1c qu\u1eb7ng c\u00f3 khi c\u00f2n c\u1ea7n s\u1ef1 tham gia \u0111\u1ed3ng th\u1eddi c\u1ee7a \u0111\u1ed9ng v\u1eadt v\u00e0 th\u1ef1c v\u1eadt.<\/p>\n\n\n\n
Trong b\u1ea3ng tu\u1ea7n ho\u00e0n c\u00e1c nguy\u00ean t\u1ed1 kim lo\u1ea1i c\u00f3 m\u1ed9t th\u00e0nh vi\u00ean g\u1ecdi l\u00e0 tanta, n\u00f3 thu\u1ed9c v\u00e0o kim lo\u1ea1i hi\u1ebfm, chi\u1ebft xu\u1ea5t kh\u00f3, do v\u1eady gi\u00e1 c\u1ea3 r\u1ea5t \u0111\u1eaft. Tr\u01b0\u1edbc \u0111\u00e2y, con ng\u01b0\u1eddi ch\u1ec9 c\u00f3 th\u1ec3 chi\u1ebft xu\u1ea5t \u0111\u01b0\u1ee3c s\u1ed1 l\u01b0\u1ee3ng \u00edt tanta t\u1eeb trong ph\u00f2ng th\u00ed nghi\u1ec7m, \u0111\u01b0\u1ee3c coi l\u00e0 v\u1eadt li\u1ec7u nghi\u00ean c\u1ee9u quan tr\u1ecdng. Sau \u0111\u00f3 ph\u00e1t hi\u1ec7n ra c\u00f3 m\u1ed9t lo\u1ea1i th\u1ef1c v\u1eadt g\u1ecdi l\u00e0 c\u1ecf t\u1eed linh l\u0103ng c\u00f3 th\u1ec3 h\u1ea5p thu \u0111\u01b0\u1ee3c tanta, \u0111em l\u1ea1i hi v\u1ecdng m\u1edbi cho vi\u1ec7c s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn tanta.<\/p>\n\n\n\n
Nh\u01b0ng trong s\u1ea3n xu\u1ea5t th\u1ef1c t\u1ebf, con ng\u01b0\u1eddi \u0111\u00e3 g\u1eb7p ph\u1ea3i r\u1eafc r\u1ed1i, b\u1edfi v\u00ec c\u1ecf t\u1eed linh l\u0103ng l\u00e0 m\u1ed9t lo\u1ea1i c\u1ecf nu\u00f4i s\u00fac v\u1eadt r\u1ea5t t\u1ed1t, n\u1ebfu nh\u01b0 \u0111em to\u00e0n b\u1ed9 ch\u00fang \u0111\u1ed1t th\u00e0nh than, l\u1ea1i t\u1eeb trong than chi\u1ebft xu\u1ea5t tanta th\u00ec s\u1ebd l\u00e3ng ph\u00ed m\u1ea5t m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u1ecf nu\u00f4i s\u00fac v\u1eadt. \u0110\u1ec3 gi\u1ea3i quy\u1ebft m\u00e2u thu\u1eabn n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc l\u1ea1i ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u s\u00e2u h\u01a1n, k\u1ebft qu\u1ea3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng, trong ph\u1ea5n hoa c\u1ee7a c\u1ecf t\u1eed linh l\u0103ng c\u00f3 l\u01b0\u1ee3ng tanta r\u1ea5t cao. V\u1eady l\u00e0 ng\u01b0\u1eddi ta \u0111\u00e3 t\u00ecm ra \u0111\u01b0\u1ee3c m\u1ed9t bi\u1ec7n ph\u00e1p t\u1ed1t \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ea3 hai m\u1ee5c \u0111\u00edch. \u1ede v\u00f9ng c\u1ecf t\u1eed linh l\u0103ng nu\u00f4i s\u00fac v\u1eadt, ng\u01b0\u1eddi nu\u00f4i th\u1ea3 nhi\u1ec1u ong m\u1eadt, l\u1ee3i d\u1ee5ng ong m\u1eadt l\u00e0m “tay truy\u1ec1n b\u00e1 th\u1ee9 hai” chi\u1ebft xu\u1ea5t tanta. Nh\u01b0 v\u1eady l\u1ea5y c\u1ecf t\u1eed linh l\u0103ng h\u1ea5p thu tanta t\u1eeb trong \u0111\u1ea5t, l\u1ea5y ong m\u1eadt thu th\u1eadp ph\u1ea5n hoa v\u00e0 g\u00e2y m\u1eadt, cu\u1ed1i c\u00f9ng con ng\u01b0\u1eddi chi\u1ebft xu\u1ea5t ra tanta qu\u00fd hi\u1ebfm t\u1eeb trong m\u1eadt ong. K\u1ebft qu\u1ea3 l\u00e0 c\u1ecf t\u1eed linh l\u0103ng kh\u00f4ng c\u1ea7n ph\u1ea3i thi\u00eau hu\u1ef7, m\u1eadt ong qua chi\u1ebft xu\u1ea5t v\u1eabn r\u1ea5t th\u01a1m, ng\u1ecdt v\u00e0 c\u00f2n l\u00e0 th\u1ef1c ph\u1ea9m gi\u00e0u ch\u1ea5t dinh d\u01b0\u1ee1ng.<\/p>\n\n\n\n
Ph\u01b0\u01a1ng ph\u00e1p m\u1edbi \u0111\u1ec3 sinh v\u1eadt khai th\u00e1c qu\u1eb7ng c\u00e0ng ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1ef1 hoan ngh\u00eanh, do n\u00f3 c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m. Ph\u01b0\u01a1ng th\u1ee9c khai th\u00e1c qu\u1eb7ng n\u00e0y kh\u00f4ng c\u1ea7n nhi\u1ec1u thi\u1ebft b\u1ecb ph\u1ee9c t\u1ea1p, c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p vi\u1ec7c khai th\u00e1c qu\u1eb7ng v\u1edbi tinh luy\u1ec7n th\u00e0nh m\u1ed9t, kh\u00f4ng ch\u1ec9 thao t\u00e1c thu\u1eadn ti\u1ec7n v\u00e0 gi\u00e1 th\u00e0nh th\u1ea5p, c\u00f2n \u0111\u1eb7c bi\u1ec7t th\u00edch h\u1ee3p v\u1edbi qu\u1eb7ng ngh\u00e8o, qu\u1eb7ng ph\u1ebf li\u1ec7u, qu\u1eb7ng c\u00f2n l\u1ea1i v\u00e0 x\u1eed l\u00ed qu\u1eb7ng c\u1eb7n, \u0111\u00e3 c\u00f3 t\u00e1c d\u1ee5ng th\u1ea7n k\u00ec bi\u1ebfn qu\u1eb7ng ph\u1ebf th\u1ea3i th\u00e0nh qu\u1eb7ng qu\u00fd hi\u1ebfm.<\/p>\n","protected":false},"excerpt":{"rendered":"
N\u00f3i \u0111\u1ebfn h\u1ea7m m\u1ecf ch\u00fang ta ngh\u0129 ngay s\u1ebd m\u1ed9t c\u1ea3nh t\u01b0\u1ee3ng m\u00e1y m\u00f3c ch\u1ea1y \u1ea7m \u1ea7m tr\u00ean c\u00f4ng tr\u01b0\u1eddng, nh\u1eefng chi\u1ebfc c\u1ea7n c\u1ea9u to l\u1edbn chuy\u1ec3n m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn qu\u1eb7ng l\u00ean nh\u1eefng chi\u1ebfc xe t\u1ea3i\u2026 Song ph\u01b0\u01a1ng th\u1ee9c khai th\u00e1c m\u1ecf ki\u1ec3u n\u00e0y ch\u1ec9 th\u00edch h\u1ee3p v\u1edbi khai th\u00e1c qu\u1eb7ng gi\u00e0u, c\u00f2n \u0111\u1ed1i […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,10],"tags":[],"class_list":["post-8218","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-sinh-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=8218"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8218\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}