R\u00e1c th\u1ea3i th\u00e0nh ph\u1ed1 th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 ph\u00e2n th\u00e0nh hai lo\u1ea1i l\u1edbn, l\u00e0 r\u00e1c th\u1ea3i c\u00f4ng nghi\u1ec7p v\u00e0 r\u00e1c th\u1ea3i sinh ho\u1ea1t. S\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p s\u1ea3n sinh ra m\u1ed9t ngu\u1ed3n r\u00e1c th\u1ea3i r\u1ea5t l\u1edbn, nh\u01b0 m\u00e1y m\u00f3c c\u0169 h\u1ecfng, ph\u1ebf li\u1ec7u trong x\u00e2y d\u1ef1ng, v.v.. Trong sinh ho\u1ea1t h\u00e0ng ng\u00e0y m\u1ed7i ng\u01b0\u1eddi ch\u00fang ta c\u0169ng th\u1ea3i ra kho\u1ea3ng 1 kg r\u00e1c th\u1ea3i, v\u00ed d\u1ee5 nh\u01b0 c\u1ecdng rau, gi\u1ea5y lo\u1ea1i, qu\u1ea7n \u00e1o c\u0169, c\u00e1c \u0111\u1ed3 nh\u1ef1a h\u01b0 h\u1ecfng, c\u00e0nh c\u00e2y, l\u00e1 kh\u00f4, d\u1ee5ng c\u1ee5 \u0111i\u1ec7n gia \u0111\u00ecnh h\u01b0 h\u1ecfng, v.v.. Ngo\u00e0i ra m\u1ed7i ng\u01b0\u1eddi c\u00f2n th\u1ea3i ra g\u1ea7n 1 kg ph\u00e2n. Theo th\u1ed1ng k\u00ea c\u00e1c th\u00e0nh ph\u1ed1 \u1edf Trung Qu\u1ed1c r\u00e1c th\u1ea3i c\u00f4ng nghi\u1ec7p \u0111\u00e3 \u0111\u1ea1t \u0111\u1ebfn 6 t\u1ec9 t\u1ea5n, r\u00e1c th\u1ea3i sinh ho\u1ea1t \u0111\u1ea1t m\u1ee9c 500 tri\u1ec7u t\u1ea5n. V\u1eady, r\u00e1c th\u1ea3i nhi\u1ec1u nh\u01b0 th\u1ebf n\u00ean \u0111\u01b0\u1ee3c x\u1eed l\u00ed nh\u01b0 th\u1ebf n\u00e0o? Tr\u01b0\u1edbc \u0111\u00e2y nhi\u1ec1u n\u01b0\u1edbc \u0111\u1ec1u d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n l\u00e0 ch\u00f4n l\u1ea5p, t\u1ee9c l\u00e0 ch\u1ecdn nh\u1eefng khu g\u00f2 \u0111\u1ed3i, thung l\u0169ng ho\u1eb7c nh\u1eefng ch\u1ed7 tr\u0169ng th\u1ea5p c\u00e1ch xa d\u00e2n c\u01b0 r\u1ed3i \u0111\u1ed5 r\u00e1c xu\u1ed1ng \u0111\u00f3, san ph\u1eb3ng, n\u00e9n ch\u1eb7t, sau \u0111\u00f3 ph\u1ee7 b\u00f9n l\u00ean. C\u00e1ch ch\u00f4n v\u00f9i nh\u01b0 th\u1ebf tuy \u0111\u01a1n gi\u1ea3n, kinh t\u1ebf nh\u01b0ng d\u1ec5 g\u00e2y \u00f4 nhi\u1ec5m cho n\u01b0\u1edbc ng\u1ea7m v\u00e0 \u0111\u1ea5t \u0111ai, h\u01a1n n\u1eefa m\u1ed9t khi c\u00e1c ch\u1ea5t \u0111\u1ed9c h\u1ea1i b\u1ecb l\u1ed9 ra s\u1ebd g\u00e2y n\u00ean t\u00e1c h\u1ea1i \u0111\u1ed1i v\u1edbi t\u00ednh m\u1ec7nh c\u1ee7a ng\u01b0\u1eddi v\u00e0 gia s\u00fac. Do \u0111\u00f3 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u1edf nh\u1eefng qu\u1ed1c gia ph\u00e1t tri\u1ec3n \u0111\u00e3 b\u1ecb x\u00f3a b\u1ecf.<\/p>\n\n\n\n
Hi\u1ec7n nay \u1edf nh\u1eefng qu\u1ed1c gia ph\u00e1t tri\u1ec3n, ng\u01b0\u1eddi ta d\u00f9ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00ed t\u1ed5ng h\u1ee3p nh\u01b0 thu h\u1ed3i, ph\u00e2n lo\u1ea1i, x\u1eed l\u00ed gia c\u00f4ng, thi\u00eau \u0111\u1ed1t v\u00e0 l\u1ee3i d\u1ee5ng t\u1ed5ng h\u1ee3p khi\u1ebfn cho r\u00e1c th\u1ea3i \u0111\u01b0\u1ee3c t\u00e1i sinh bi\u1ebfn th\u00e0nh c\u1ee7a c\u1ea3i.<\/p>\n\n\n\n
Qui tr\u00ecnh l\u00e0 tr\u01b0\u1edbc h\u1ebft ph\u1ea3i thu gom, ph\u00e2n lo\u1ea1i r\u00e1c th\u1ea3i sinh ho\u1ea1t. Th\u00f4ng qua ph\u00e2n lo\u1ea1i t\u00e1ch gi\u1ea5y lo\u1ea1i, kim lo\u1ea1i, chai l\u1ecd th\u1ee7y tinh v\u00e0 c\u00e1c \u0111\u1ed3 h\u1ed9p c\u00f3 th\u1ec3 t\u00e1i sinh \u0111\u01b0\u1ee3c ra kh\u1ecfi c\u00e1c ch\u1ea5t ph\u1ebf th\u1ea3i kh\u00e1c, nh\u01b0 v\u1eady v\u1eeba c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng v\u1eeba c\u00f3 th\u1ec3 gi\u1ea3m \u00edt lo\u1ea1i r\u00e1c th\u1ea3i v\u00f4 d\u1ee5ng. \u0110\u1ed1i v\u1edbi lo\u1ea1i r\u00e1c th\u1ea3i kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb c\u00f3 th\u1ec3 d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00ed khoa h\u1ecdc \u0111\u1ec3 ch\u00f4n l\u1ea5p ho\u1eb7c \u0111\u1ed1t \u0111i.<\/p>\n\n\n\n
Ph\u01b0\u01a1ng ph\u00e1p ch\u00f4n l\u1ea5p khoa h\u1ecdc t\u1ee9c l\u00e0 \u0111em r\u00e1c th\u1ea3i b\u1ecf \u0111i thu gom l\u1ea1i, ti\u1ebfn h\u00e0nh x\u1eed l\u00ed \u0111\u1ec3 gi\u1ea3m b\u1edbt \u0111\u1ed9 \u0111\u1ed9c h\u1ea1i, sau \u0111\u00f3 v\u1eadn chuy\u1ec3n \u0111\u1ebfn \u0111\u1ecba \u0111i\u1ec3m ch\u00f4n l\u1ea5p, d\u00f9ng m\u00e1y h\u00fac ho\u1eb7c m\u00e1y l\u00e0m \u0111\u01b0\u1eddng n\u00e9n ch\u1eb7t r\u1ed3i ph\u1ee7 m\u1ed9t l\u1edbp \u0111\u1ea5t l\u00ean tr\u00ean, l\u1ea1i r\u1ea3i m\u1ed9t l\u1edbp r\u00e1c th\u1ea3i kh\u00e1c, c\u1ee9 ch\u00f4n theo t\u1eebng l\u1edbp nh\u01b0 th\u1ebf, cu\u1ed1i c\u00f9ng ph\u1ee7 m\u1ed9t l\u1edbp \u0111\u1ea5t b\u1ec1 m\u1eb7t d\u00e0y 30 cm l\u00ean tr\u00ean. Sau khi ch\u00f4n \u0111\u01b0\u1ee3c 2 \u2013 5 n\u0103m c\u00f3 th\u1ec3 khoan l\u1ed7 \u0111\u1ec3 l\u1ea5y kh\u00ed m\u00eatan, d\u00f9ng \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn \u0111\u1ebfn nh\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n g\u1ea7n \u0111\u00f3 \u0111\u1ec3 s\u1eed d\u1ee5ng.<\/p>\n\n\n\n
Ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ed1t trong m\u1ea5y n\u0103m g\u1ea7n \u0111\u00e2y \u1edf m\u1ed9t s\u1ed1 n\u01b0\u1edbc ph\u00e1t tri\u1ec3n \u0111\u01b0\u1ee3c d\u00f9ng r\u1ea5t r\u1ed9ng r\u00e3i. Khi x\u1eed l\u00ed \u0111\u1ed1t \u1edf nhi\u1ec7t \u0111\u1ed9 cao r\u00e1c th\u1ea3i s\u1ebd ch\u00e1y ho\u00e0n to\u00e0n, s\u1ed1 tro c\u00f2n l\u1ea1i ch\u1ec9 kho\u1ea3ng 5% so v\u1edbi ban \u0111\u1ea7u, nh\u01b0 v\u1eady gi\u1ea3m th\u1ea5p s\u1ed1 l\u01b0\u1ee3ng ph\u1ebf th\u1ea3i \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u. Trong qu\u00e1 tr\u00ecnh \u0111\u1ed1t, c\u00e1c ngu\u1ed3n g\u00e2y b\u1ec7nh b\u1ecb ti\u00eau di\u1ec7t, c\u00e1c ch\u1ea5t \u0111\u1ed9c c\u0169ng \u0111\u01b0\u1ee3c x\u1eed l\u00ed th\u00e0nh v\u00f4 h\u1ea1i, nhi\u1ec7t l\u01b0\u1ee3ng \u0111\u1ed1t c\u00f2n c\u00f3 th\u1ec3 l\u00e0m ch\u1ea1y tuabin m\u00e1y ph\u00e1t \u0111i\u1ec7n. Qu\u00e1 tr\u00ecnh \u0111\u1ed1t \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh trong l\u00f2 \u0111\u1ed1t b\u1ecbt k\u00edn. C\u00e1c l\u00f2 \u0111\u1ed1t \u0111i\u1ec7n c\u00f2n l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb kh\u1eed b\u1ee5i v\u00e0 kh\u1eed kh\u00f3i, c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba kh\u00f3i \u0111\u1ed1t r\u00e1c g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: R\u00e1c th\u1ea3i th\u00e0nh ph\u1ed1; R\u00e1c th\u1ea3i c\u00f4ng nghi\u1ec7p; R\u00e1c th\u1ea3i sinh ho\u1ea1t;<\/p>\n","protected":false},"excerpt":{"rendered":"
R\u00e1c th\u1ea3i th\u00e0nh ph\u1ed1 th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 ph\u00e2n th\u00e0nh hai lo\u1ea1i l\u1edbn, l\u00e0 r\u00e1c th\u1ea3i c\u00f4ng nghi\u1ec7p v\u00e0 r\u00e1c th\u1ea3i sinh ho\u1ea1t. S\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p s\u1ea3n sinh ra m\u1ed9t ngu\u1ed3n r\u00e1c th\u1ea3i r\u1ea5t l\u1edbn, nh\u01b0 m\u00e1y m\u00f3c c\u0169 h\u1ecfng, ph\u1ebf li\u1ec7u trong x\u00e2y d\u1ef1ng, v.v.. Trong sinh ho\u1ea1t h\u00e0ng ng\u00e0y m\u1ed7i ng\u01b0\u1eddi ch\u00fang […]<\/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":[15,17],"tags":[],"class_list":["post-9498","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-moi-truong"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9498","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=9498"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9498\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}