{"id":9659,"date":"2011-07-01T04:15:37","date_gmt":"2011-06-30T21:15:37","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2011\/07\/ket-qua-nghien-cuu-khac-phuc-mot-so-nhuoc-diem-cua-go-rung-trong\/"},"modified":"2013-10-06T09:02:26","modified_gmt":"2013-10-06T02:02:26","slug":"ket-qua-nghien-cuu-khac-phuc-mot-so-nhuoc-diem-cua-go-rung-trong","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ket-qua-nghien-cuu-khac-phuc-mot-so-nhuoc-diem-cua-go-rung-trong\/","title":{"rendered":"K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u kh\u1eafc ph\u1ee5c m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a g\u1ed7 r\u1eebng tr\u1ed3ng"},"content":{"rendered":"<p> <strong>Nguy\u1ec5n Xu\u00e2n Quy\u1ec1n, V\u0169 \u0110\u00ecnh Th\u1ecbnh<\/strong> <\/p>\n<p> <em>Ph\u00f2ng Nghi\u00ean c\u1ee9u Ch\u1ebf bi\u1ebfn l\u00e2m s\u1ea3n<\/em> <\/p>\n<p> <em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><strong><\/strong> <\/p>\n<p> <strong>T\u00d3M T\u1eaeT<\/strong> <\/p>\n<p> Nghi\u00ean c\u1ee9u kh\u1eafc ph\u1ee5c nh\u01b0\u1ee3c \u0111i\u1ec3m r\u1eebng tr\u1ed3ng nguy\u00ean li\u1ec7u nh\u1eb1m n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 ph\u1ee5c v\u1ee5 c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn l\u00e0 m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng. G\u1ed7 Keo lai \u0111\u01b0\u1ee3c t\u00e1c \u0111\u1ed9ng b\u1eb1ng Amoniac n\u1ed3ng \u0111\u1ed9 24% s\u1ebd gi\u1ea3m \u0111\u01b0\u1ee3c \u0111\u1ed9 gi\u00f2n, trong qu\u00e1 tr\u00ecnh gia c\u00f4ng b\u1ec1 m\u1eb7t g\u1ed7 kh\u00f4ng b\u1ecb x\u01b0\u1edbc. C\u00f4ng ri\u00eang khi u\u1ed1n va \u0111\u1eadp theo h\u01b0\u1edbng ti\u1ebfp tuy\u1ebfn c\u1ee7a g\u1ed7 sau khi x\u1eed l\u00fd 72 gi\u1edd \u0111\u1ea1t 0.48kgm\/cm<sup>3<\/sup>, g\u1ed7 kh\u00f4ng x\u1eed l\u00fd \u0111\u1ea1t 0.27kgm\/cm<sup>3<\/sup>.<sup>\u00ad<\/sup> Theo h\u01b0\u1edbng xuy\u00ean t\u00e2m, g\u1ed7 sau khi x\u1eed l\u00fd 72 gi\u1edd C\u00f4ng ri\u00eang khi u\u1ed1n va \u0111\u1eadp \u0111\u1ea1t 0.56kgm\/cm<sup>3\u00ad<\/sup>, g\u1ed7 kh\u00f4ng x\u1eed l\u00fd Amoniac l\u00e0 0.29 kgm\/cm<sup>3<\/sup>. \u0110\u1ed1i v\u1edbi g\u1ed7 Keo tai t\u01b0\u1ee3ng khi ch\u01b0a t\u1ea9y tr\u1eafng c\u00f3 m\u1ea7u \u0111en, sau khi d\u00f9ng h\u00f3a ch\u1ea5t t\u1ea9y m\u1ea7u l\u00e0 H<sub>2<\/sub>O<sub>2<\/sub> n\u1ed3ng \u0111\u1ed9 l\u00e0 7,5 %, th\u1eddi gian nh\u00fang m\u1eabu v\u00e0o dung d\u1ecbch t\u1ea9y l\u00e0 2 ph\u00fat sau \u0111\u00f3 s\u1ea5y v\u1edbi nhi\u1ec7t \u0111\u1ed9 s\u1ea5y l\u00e0 60<sup>0<\/sup>C, th\u1eddi gian s\u1ea5y l\u00e0 60 ph\u00fat cho k\u1ebft qu\u1ea3 t\u1ea9y tr\u1eafng t\u1ed1t. Khi ti\u1ebfn h\u00e0nh lo\u1ea1i b\u1ecf m\u1ed9t ph\u1ea7n ch\u1ea5t chi\u1ebft xu\u1ea5t v\u00e0 nh\u1ef1a ch\u1ee9a trong g\u1ed7 th\u00f4ng Carib\u00ea, m\u1eabu g\u1ed7 \u0111\u01b0\u1ee3c lu\u1ed9c trong 2 gi\u1edd, l\u01b0\u1ee3ng nh\u1ef1a v\u00e0 c\u00e1c ch\u1ea5t chi\u1ebft xu\u1ea5t kh\u00e1c tho\u00e1t ra l\u00e0 1.89%. C\u01b0\u1eddng \u0111\u1ed9 d\u00e1n d\u00ednh c\u1ee7a g\u1ed7 Th\u00f4ng Carib\u00ea sau khi x\u1eed l\u00fd 2h t\u0103ng l\u00ean 2.27 MPa.  <\/p>\n<p> <strong>T\u1eeb kh\u00f3a<\/strong>: G\u1ed7 r\u1eebng tr\u1ed3ng<strong><\/strong> <\/p>\n<p> <strong>I.<\/strong><strong> \u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n<p> Theo th\u1ed1ng k\u00ea c\u1ee7a C\u1ee5c Ki\u1ec3m l\u00e2m, t\u00ednh \u0111\u1ebfn ng\u00e0y 31 th\u00e1ng 12 n\u0103m 2008, di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng \u1edf n\u01b0\u1edbc ta l\u00e0 2.770.182ha trong \u0111\u00f3 c\u00f3 2,028,920ha di\u1ec7n t\u00ednh r\u1eebng s\u1ea3n xu\u1ea5t. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, g\u1ed7 r\u1eebng tr\u1ed3ng \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t, thay th\u1ebf m\u1ed9t ph\u1ea7n g\u1ed7 r\u1eebng t\u1ef1 nhi\u00ean \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 ngu\u1ed3n nguy\u00ean li\u1ec7u ph\u1ee5c v\u1ee5 s\u1ea3n xu\u1ea5t. Tuy v\u1eady, khi s\u1eed d\u1ee5ng l\u00e0m nguy\u00ean li\u1ec7u s\u1ea3n xu\u1ea5t \u0111\u1ed3 m\u1ed9c, g\u1ed7 r\u1eebng tr\u1ed3ng \u0111\u00e3 xu\u1ea5t hi\u1ec7n m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u01b0: s\u1ef1 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 m\u00e0u s\u1eafc c\u1ee7a g\u1ed7, g\u1ed7 b\u1ecb gi\u00f2n khi\u1ebfn qu\u00e1 tr\u00ecnh gia c\u00f4ng g\u1eb7p nhi\u1ec1u kh\u00f3 kh\u0103n, trong g\u1ed7 t\u1ed3n t\u1ea1i nh\u1ef1a v\u00e0 t\u00fai nh\u1ef1a hay g\u1ed7 b\u1ecb n\u1ee9t v\u1ee1 v\u00e0 bi\u1ebfn d\u1ea1ng trong qu\u00e1 tr\u00ecnh s\u1ea5y.v.v. <\/p>\n<p> K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1ee7a PGS,TS. Nguy\u1ec5n Tr\u1ecdng Nh\u00e2n (2005), cho bi\u1ebft nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a g\u1ed7 r\u1eebng tr\u1ed3ng v\u1ec1 t\u00ednh ch\u1ea5t c\u01a1, v\u1eadt l\u00fd th\u1ea5p, m\u1ea7u s\u1eafc x\u1ea5u, d\u1ec5 b\u1ecb cong v\u00eanh, n\u1ee9t v\u1ee1, kh\u1ea3 n\u0103ng b\u00e1m d\u00ednh h\u1ea1n ch\u1ebf&#8230; l\u00e0m cho qu\u00e1 tr\u00ecnh gia c\u00f4ng ch\u1ebf bi\u1ebfn c\u00e1c s\u1ea3n ph\u1ea9m g\u1eb7p r\u1ea5t nhi\u1ec1u kh\u00f3 kh\u0103n, ch\u1ea5t l\u00ad\u01b0\u1ee3ng g\u1ed7 b\u1ecb gi\u1ea3m s\u00fat, k\u00e9o theo ch\u1ea5t l\u00ad\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m b\u1ecb h\u1ea1n ch\u1ebf, \u0111\u1ed9 th\u1ea9m m\u1ef9 kh\u00f4ng cao, kh\u00f3 thuy\u1ebft ph\u1ee5c ng\u00ad\u01b0\u1eddi ti\u00eau d\u00f9ng. \u0110\u1ec3 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 nguy\u00ean li\u1ec7u g\u1ed7 r\u1eebng tr\u1ed3ng cho s\u1ea3n xu\u1ea5t \u0111\u1ed3 m\u1ed9c, c\u1ea7n t\u1eadp trung nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng v\u1ec1 ch\u1ea5t l\u01b0\u00ad\u1ee3ng c\u1ee7a nh\u1eefng lo\u1ea1i nguy\u00ean li\u1ec7u hi\u1ec7n c\u00f3 \u1edf trong n\u00ad\u01b0\u1edbc, \u0111\u1ed3ng th\u1eddi t\u00ecm bi\u1ec7n ph\u00e1p c\u00f4ng ngh\u1ec7 kh\u1eafc ph\u1ee5c m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf th\u00ad\u01b0\u1eddng xu\u1ea5t hi\u1ec7n \u1edf g\u1ed7 v\u00e0 t\u0103ng c\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng theo y\u00eau c\u1ea7u c\u1ee7a s\u1ea3n ph\u1ea9m. <\/p>\n<p> <em>(K\u1ef7 y\u1ebfu H\u1ed9i ngh\u1ecb Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 L\u00e2m nghi\u1ec7p v\u1edbi ph\u00e1t tri\u1ec3n r\u1eebng b\u1ec1n v\u1eefng v\u00e0 bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, trang 445-452)<\/em><em><\/em>   <\/p>\n","protected":false},"excerpt":{"rendered":"<p align=\"justify\">\n<span style=\"font-family: Arial; font-size: 10pt\">Nghi&ecirc;n c\u1ee9u kh\u1eafc ph\u1ee5c nh\u01b0\u1ee3c \u0111i\u1ec3m r\u1eebng tr\u1ed3ng nguy&ecirc;n li\u1ec7u nh\u1eb1m n&acirc;ng cao ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 ph\u1ee5c v\u1ee5 c&ocirc;ng nghi\u1ec7p ch\u1ebf bi\u1ebfn l&agrave; m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng. G\u1ed7 Keo lai \u0111\u01b0\u1ee3c t&aacute;c \u0111\u1ed9ng b\u1eb1ng Amoniac n\u1ed3ng \u0111\u1ed9 24% s\u1ebd gi\u1ea3m \u0111\u01b0\u1ee3c \u0111\u1ed9 gi&ograve;n, trong qu&aacute; tr&igrave;nh gia c&ocirc;ng b\u1ec1 m\u1eb7t g\u1ed7 kh&ocirc;ng b\u1ecb x\u01b0\u1edbc. C&ocirc;ng ri&ecirc;ng khi u\u1ed1n va \u0111\u1eadp theo h\u01b0\u1edbng ti\u1ebfp tuy\u1ebfn c\u1ee7a g\u1ed7 sau khi x\u1eed l&yacute; 72 gi\u1edd \u0111\u1ea1t 0.48kgm\/cm<sup>3<\/sup>, g\u1ed7 kh&ocirc;ng x\u1eed l&yacute; \u0111\u1ea1t 0.27kgm\/cm<sup>3<\/sup>.<sup>&shy;<\/sup> Theo h\u01b0\u1edbng xuy&ecirc;n t&acirc;m, g\u1ed7 sau khi x\u1eed l&yacute; 72 gi\u1edd C&ocirc;ng ri&ecirc;ng khi u\u1ed1n va \u0111\u1eadp \u0111\u1ea1t 0.56kgm\/cm<sup>3&shy;<\/sup>, g\u1ed7 kh&ocirc;ng x\u1eed l&yacute; Amoniac l&agrave; 0.29 kgm\/cm<sup>3<\/sup>.<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9659"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=9659"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9659\/revisions"}],"predecessor-version":[{"id":11112,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9659\/revisions\/11112"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}