{"id":234,"date":"2019-10-15T16:58:05","date_gmt":"2019-10-15T09:58:05","guid":{"rendered":"http:\/\/sabanlichsudientu.io.vn\/?p=234"},"modified":"2025-07-31T14:14:46","modified_gmt":"2025-07-31T07:14:46","slug":"he-thong-phan-loai-rac-thai-truong-hoc","status":"publish","type":"post","link":"https:\/\/sabanlichsudientu.io.vn\/?p=234","title":{"rendered":"H\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i r\u00e1c th\u1ea3i tr\u01b0\u1eddng h\u1ecdc"},"content":{"rendered":"\n

\u0110\u1ec0 T\u00c0I<\/strong>
H\u1ec6 TH\u1ed0NG PH\u00c2N LO\u1ea0I R\u00c1C TH\u1ea2I TR\u01af\u1edcNG H\u1eccC<\/strong><\/p>\n

A. L\u00ed do ch\u1ecdn \u0111\u1ec1 t\u00e0i:
B. Gi\u1ea3 thuy\u1ebft khoa h\u1ecdc; C\u00e2u h\u1ecfi nghi\u00ean c\u1ee9u; M\u1ee5c ti\u00eau k\u0129 thu\u1eadt; K\u1ebft qu\u1ea3 mong \u0111\u1ee3i:
1. Gi\u1ea3 thuy\u1ebft khoa h\u1ecdc:
– L\u00e0m th\u1ebf n\u00e0o c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i r\u00e1c th\u1ea3i \u1edf tr\u01b0\u1eddng h\u1ecdc? Bi\u1ec7n ph\u00e1p n\u00e0o \u0111\u1ec3 c\u00e1c em hi\u1ec3u \u0111\u01b0\u1ee3c r\u00e1c t\u00e1i ch\u1ebf l\u00e0 g\u00ec? R\u00e1c h\u1eefu c\u01a1 l\u00e0 nh\u1eefng lo\u1ea1i r\u00e1c n\u00e0o? R\u00e1c v\u00f4 c\u01a1 l\u00e0 nh\u1eefng lo\u1ea1i r\u00e1c n\u00e0o?
– Chi ph\u00ed cho vi\u1ec7c nghi\u00ean c\u1ee9u c\u00f3 \u0111\u1ea3m b\u1ea3o kinh t\u1ebf ph\u00f9 h\u1ee3p hay kh\u00f4ng? v\u00e0 t\u1ed1n nhi\u1ec1u th\u1eddi gian hay kh\u00f4ng?
2. C\u00e2u h\u1ecfi nghi\u00ean c\u1ee9u:
L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u00f3 th\u1ec3 d\u00f9ng c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed, c\u00e1c ph\u1ea7n m\u1ec1n \u0111\u00e3 h\u1ecdc \u0111\u1ec3 ph\u00e2n lo\u1ea1i \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i r\u00e1c th\u1ea3i? S\u1ea3n ph\u1ea9m t\u1ea1o ra c\u00f3 c\u1ea7n thi\u1ebft v\u00e0 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhu c\u1ea7u hi\u1ec7n nay hay kh\u00f4ng?
S\u1ea3n ph\u1ea9m c\u00f3 d\u1ec5 s\u1eed d\u1ee5ng \u0111\u1ed1i v\u1edbi t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi hay kh\u00f4ng? 3. M\u1ee5c ti\u00eau k\u0129 thu\u1eadt:
M\u1ee5c ti\u00eau k\u1ef9 thu\u1eadt c\u1ee7a \u201cH\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i r\u00e1c th\u1ea3i tr\u01b0\u1eddng h\u1ecdc\u201d bao g\u1ed3m:
– T\u00e1i ch\u1ebf v\u00e0 s\u1eed d\u1ee5ng l\u1ea1i: Ph\u00e2n lo\u1ea1i r\u00e1c gi\u00fap nh\u1eadn bi\u1ebft v\u00e0 t\u00e1ch ri\u00eang c\u00e1c v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf nh\u01b0 gi\u1ea5y, nh\u1ef1a, kim lo\u1ea1i, gi\u00fap gi\u1ea3m l\u01b0\u1ee3ng r\u00e1c th\u1ea3i v\u00e0 ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean t\u1ef1 nhi\u00ean. Ph\u00e2n lo\u1ea1i \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i r\u00e1c c\u01a1 b\u1ea3n nh\u01b0: R\u00e1c t\u00e1i ch\u1ebf, r\u00e1c h\u1eefu c\u01a1 v\u00e0 r\u00e1c v\u00f4 c\u01a1.
– X\u1eed l\u00fd an to\u00e0n: Ph\u00e2n lo\u1ea1i r\u00e1c gi\u00fap t\u0103ng t\u00ednh an to\u00e0n trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd ch\u1ea5t th\u1ea3i, gi\u1ea3m nguy c\u01a1 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng v\u00e0 nguy hi\u1ec3m cho s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi.
– B\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ee9c kh\u1ecfe: Gi\u1ea3m l\u01b0\u1ee3ng r\u00e1c th\u1ea3i \u0111\u01b0a v\u00e0o b\u00e3i r\u00e1c v\u00e0 ti\u00eau h\u1ee7y, b\u1ea3o v\u1ec7 ngu\u1ed3n n\u01b0\u1edbc, \u0111\u1ea5t \u0111ai v\u00e0 kh\u00f4ng kh\u00ed.
– H\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean: T\u00e1i ch\u1ebf v\u00e0 s\u1eed d\u1ee5ng l\u1ea1i c\u00e1c v\u1eadt li\u1ec7u gi\u00fap gi\u1ea3m nhu c\u1ea7u khai th\u00e1c t\u00e0i nguy\u00ean m\u1edbi, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng t\u1ef1 nhi\u00ean.
– Gi\u00e1o d\u1ee5c h\u1ecdc sinh bi\u1ebft b\u1edf r\u00e1c \u0111\u00fang n\u01a1i qyi \u0111\u1ecbnh, bi\u1ebft ph\u00e2n lo\u1ea1i c\u00e1c lo\u1ea1i r\u00e1c th\u1ea3i.
Nh\u1eefng m\u1ee5c ti\u00eau n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng m\u00e0 c\u00f2n t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd ch\u1ea5t th\u1ea3i b\u1ec1n v\u1eefng h\u01a1n.<\/p>\n\n","protected":false},"excerpt":{"rendered":"

S\u1ea3n ph\u1ea9m s\u00e1ng t\u1ea1o khoa h\u1ecdc<\/p>\n","protected":false},"author":4,"featured_media":1627,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,12],"tags":[],"class_list":["post-234","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-khong-phan-loai","category-san-pham-khoa-hoc-ky-thuat"],"_links":{"self":[{"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=\/wp\/v2\/posts\/234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=234"}],"version-history":[{"count":5,"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=\/wp\/v2\/posts\/234\/revisions"}],"predecessor-version":[{"id":2113,"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=\/wp\/v2\/posts\/234\/revisions\/2113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=\/wp\/v2\/media\/1627"}],"wp:attachment":[{"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sabanlichsudientu.io.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}