{"id":48,"date":"2019-03-11T15:57:03","date_gmt":"2019-03-11T15:57:03","guid":{"rendered":"http:\/\/vico.wp\/?p=48"},"modified":"2019-04-29T11:02:08","modified_gmt":"2019-04-29T04:02:08","slug":"nghien-cuu-cai-tao-be-loc-nhanh-mot-lop-thanh-be-loc-nhanh-hai-lop-vat-lieu-loc","status":"publish","type":"post","link":"https:\/\/vicosimex.com.vn\/en\/tin-nghanh\/nghien-cuu-cai-tao-be-loc-nhanh-mot-lop-thanh-be-loc-nhanh-hai-lop-vat-lieu-loc.html","title":{"rendered":"Researching to improve fast filter tank 1 layer into fast filter tank 2 layers of filter materials"},"content":{"rendered":"

> PGS.TS Nguy\u1ec5n Vi\u1ec7t Anh, >ThS.V\u0169 H\u1ed3ng D\u01b0\u01a1ng<\/i><\/b><\/i><\/b><\/p>\n

>ThS.Tr\u1ea7n D\u01b0\u01a1ng<\/i><\/b><\/i><\/b><\/p>\n

T\u00f3m t\u1eaft:<\/i><\/b>\u00a0B\u1ec3 l\u1ecdc nhanh 2 l\u1edbp v\u1eadt li\u1ec7u c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m so v\u1edbi b\u1ec3 l\u1ecdc 1 l\u1edbp v\u1eadt li\u1ec7u nh\u01b0: dung l\u01b0\u1ee3ng ch\u1ee9a c\u1eb7n l\u1edbn, t\u1ed1c \u0111\u1ed9 l\u1ecdc l\u1edbn trong khi t\u1ed5n th\u1ea5t \u00e1p l\u1ef1c t\u0103ng ch\u1eadm h\u01a1n, chu k\u1ef3 l\u00e0m vi\u1ec7c k\u00e9o d\u00e0i v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau khi l\u1ecdc \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. C\u00f4ng ngh\u1ec7 l\u1ecdc n\u00e0y v\u1eabn c\u00f2n \u00edt \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u1ea1i Vi\u1ec7t Nam. Nh\u00f3m nghi\u00ean c\u1ee9u c\u1ee7a tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc X\u00e2y d\u1ef1ng v\u00e0 c\u00f4ng ty C\u1ea5p n\u01b0\u1edbc H\u1ea3i Ph\u00f2ng \u0111\u00e3 nghi\u00ean c\u1ee9u \u1ee9ng d\u1ee5ng th\u00e0nh c\u00f4ng c\u00f4ng ngh\u1ec7 l\u1ecdc\u00a0 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc (anthraxit + c\u00e1t th\u1ea1ch anh) trong \u0111i\u1ec1u ki\u1ec7n Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng, c\u00f4ng ty C\u1ea5p n\u01b0\u1edbc H\u1ea3i Ph\u00f2ng \u0111\u00e3 m\u1ea1nh d\u1ea1n c\u1ea3i t\u1ea1o 18 b\u1ec3 l\u1ecdc\u00a0 t\u1ea1i Nh\u00e0 m\u00e1y An D\u01b0\u01a1ng v\u00e0 ti\u1ebfp t\u1ee5c tri\u1ec3n khai cho c\u00e1c Nh\u00e0 m\u00e1y n\u01b0\u1edbc kh\u00e1c \u1edf th\u00e0nh ph\u1ed1 H\u1ea3i Ph\u00f2ng. K\u1ebft qu\u1ea3 c\u00f4ng su\u1ea5t Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng \u0111\u00e3 t\u0103ng t\u1eeb 120.000m<\/i>3<\/sup><\/i>\/ng\u00e0y \u0111\u00eam l\u00ean 140.000m3<\/sup>\/ng\u00e0y \u0111\u00eam. T\u1ed1c \u0111\u1ed9 l\u1ecdc t\u0103ng t\u1eeb 5-6m\/h l\u00ean 10-12m\/h, chu k\u1ef3 l\u1ecdc t\u1eeb 1 ng\u00e0y l\u00ean 2 ng\u00e0y, \u0111\u1ed9 \u0111\u1ee5c gi\u1ea3m t\u1eeb 1 NTU\u00a0 xu\u1ed1ng c\u00f2n 2 NTU m\u00e0 kh\u00f4ng ph\u1ea3i x\u00e2y d\u1ef1ng th\u00eam b\u1ec3 l\u1ecdc n\u00e0o. Nghi\u00ean c\u1ee9u \u0111\u00e3 mang l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao cho Doanh nghi\u1ec7p v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ea5p. C\u00e1c t\u00e1c gi\u1ea3 ki\u1ebfn ngh\u1ecb m\u1ea1nh d\u1ea1n \u00e1p d\u1ee5ng h\u01a1n n\u1eefa c\u00f4ng ngh\u1ec7 l\u1ecdc n\u00e0y trong th\u1ef1c t\u1ebf.<\/i><\/p>\n

 <\/p>\n

1. \u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/b><\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 L\u1ecdc n\u01b0\u1edbc th\u01b0\u1eddng l\u00e0 c\u00f4ng \u0111o\u1ea1n cu\u1ed1i c\u00f9ng c\u1ee7a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd, l\u00e0m trong n\u01b0\u1edbc. N\u01b0\u1edbc \u0111i qua c\u00e1c v\u1eadt li\u1ec7u d\u1ea1ng h\u1ea1t v\u00e0 th\u1ec3 keo \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i \u1edf gi\u1eefa c\u00e1c khe r\u1ed7ng ho\u1eb7c d\u00ednh b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t nh\u1edd l\u1ef1c li\u00ean k\u1ebft ph\u00e2n t\u1eed. L\u1ecdc n\u01b0\u1edbc l\u00e0 t\u1eadp h\u1ee3p \u0111\u1ed3ng th\u1eddi c\u1ea3 ba qu\u00e1 tr\u00ecnh: l\u1eafng b\u1ec1 m\u1eb7t, h\u1ea5p ph\u1ee5 – d\u00ednh b\u00e1m v\u00e0 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, h\u00f3a h\u1ecdc (v\u00ed d\u1ee5 nh\u01b0 oxy h\u00f3a Fe2+ th\u00e0nh Fe3+). B\u1ec3 l\u1ecdc nhanh tr\u1ecdng l\u1ef1c l\u00e0 c\u00f4ng tr\u00ecnh l\u1ecdc \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ph\u1ed5 bi\u1ebfn trong th\u1ef1c t\u1ebf. B\u1ec3 ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean l\u00fd n\u01b0\u1edbc \u0111\u01b0\u1ee3c l\u1ecdc qua l\u1edbp c\u00e1t th\u1ea1ch anh theo chi\u1ec1u t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi b\u1eb1ng tr\u1ecdng l\u1ef1c d\u00f2ng n\u01b0\u1edbc. V\u1eadn t\u1ed1c trung b\u00ecnh t\u1eeb 5-7m\/h. Chu k\u1ef3 l\u1ecdc th\u00f4ng th\u01b0\u1eddng k\u00e9o d\u00e0i kho\u1ea3ng 24h. Sau \u0111\u00f3, \u0111\u1ec3 r\u1eeda tr\u00f4i c\u00e1c ch\u1ea5t b\u1ea9n \u0111\u00e3 \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i trong kh\u1ed1i v\u1eadt li\u1ec7u l\u1ecdc, ng\u01b0\u1eddi ta s\u1ee5c kh\u00ed v\u00e0 n\u01b0\u1edbc ng\u01b0\u1ee3c t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean, cu\u1ed1n tr\u00f4i c\u00e1c ch\u1ea5t c\u1eb7n b\u1ea9n ra kh\u1ecfi b\u1ec3 l\u1ecdc. Hi\u1ec7u qu\u1ea3 qu\u00e1 tr\u00ecnh r\u1eeda l\u1ecdc quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc l\u1ecdc \u1edf c\u00e1c chu k\u1ef3 ti\u1ebfp theo, chu k\u1ef3 l\u1ecdc v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc. C\u01b0\u1eddng \u0111\u1ed9 n\u01b0\u1edbc r\u1eeda l\u1ecdc th\u01b0\u1eddng b\u1eb1ng 14-18l\/s.m2<\/sup>\u00a0v\u00e0 th\u01b0\u1eddng ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c lo\u1ea1i cat l\u1ecdc sao cho khi r\u1eeda ng\u01b0\u1ee3c, l\u1edbp c\u00e1t l\u1ecdc ch\u1ec9 gi\u00e3n n\u1edf \u0111\u1ebfn m\u1ed9t chi\u1ec1u d\u00e0y nh\u1ea5t \u0111\u1ecbnh v\u00e0 c\u00e1t l\u1ecdc kh\u00f4ng b\u1ecb cu\u1ed1n tr\u00f4i kh\u1ecfi m\u00e1ng thu n\u01b0\u1edbc c\u00f9ng v\u1edbi ch\u1ea5t b\u1ea9n.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C\u00e1c ch\u1ea5t b\u1ea9n d\u1ea1ng h\u1ea1t v\u00e0 d\u1ea1ng keo th\u01b0\u1eddng nhanh ch\u00f3ng t\u00edch t\u1ee5\u00a0 tr\u00ean b\u1ec1 m\u1eb7t l\u1edbp v\u1eadt li\u1ec7u trong b\u1ec3 l\u1ecdc v\u00e0 t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp m\u00e0ng. L\u1edbp m\u00e0ng n\u00e0y c\u00e0ng d\u1ec5 h\u00ecnh th\u00e0nh khi v\u1eadt li\u1ec7u trong b\u1ec3 kh\u00f4ng c\u00f3 th\u00e0nh ph\u1ea7n c\u1ea5p ph\u1ed1i \u0111\u1ed3ng nh\u1ea5t, c\u00e1c h\u1ea1t nh\u1ecf b\u1ecb \u0111\u01b0a l\u00ean l\u1edbp tr\u00ean sau m\u1ed7i l\u1ea7n r\u1eeda ng\u01b0\u1ee3c. \u0110\u00e2y l\u00e0 l\u00fd do khi\u1ebfn b\u1ec3 l\u1ecdc nhanh b\u1ecb t\u1eafc, th\u1eadm ch\u00ed x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u00e1p su\u1ea5t \u00e2m do tr\u1edf l\u1ef1c sinh ra trong b\u1ec3 (\u0111\u1eb7c bi\u1ec7t l\u00e0 qua l\u1edbp m\u00e0ng c\u1eb7n) l\u1edbn, v\u01b0\u1ee3t qua c\u1ea3 th\u1ebf n\u0103ng c\u1ee7a l\u01b0\u1ee3ng n\u01b0\u1edbc \u1edf tr\u00ean b\u1ec3. M\u00e0ng c\u1eb7n c\u0169ng l\u00e0m cho dung l\u01b0\u1ee3ng ch\u1ee9a c\u1eb7n trong b\u1ec3 gi\u1ea3m v\u00ec c\u1eb7n ch\u01b0a v\u1eadn chuy\u1ec3n \u0111\u01b0\u1ee3c xu\u1ed1ng c\u00e1c l\u1edbp v\u1eadt li\u1ec7u b\u00ean d\u01b0\u1edbi, b\u1ec3 \u0111\u00e3 b\u1ecb t\u1eafc, ng\u01b0\u1eddi ta s\u1ebd ph\u1ea3i ng\u1eebng b\u1ec3 l\u1ecdc r\u1eeda th\u01b0\u1eddng xuy\u00ean, g\u00e2y t\u1ed1n k\u00e9m, \u0111\u1ed3ng th\u1eddi n\u01b0\u1edbc sau l\u1ecdc c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 M\u1ed9t trong nh\u1eefng gi\u1ea3i ph\u00e1p kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0 d\u00f9ng b\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc. B\u1ec3 l\u1ecdc nhanh 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc c\u00f3 c\u1ea5u t\u1ea1o t\u01b0\u01a1ng t\u1ef1 b\u1ec3 l\u1ecdc nhanh tr\u1ecdng l\u1ef1c th\u00f4ng th\u01b0\u1eddng, ph\u1ea3i ch\u1ecdn lo\u1ea1i v\u1eadt li\u1ec7u l\u1ecdc sao cho \u0111\u1ea1t \u0111\u1ed3ng th\u1eddi c\u00e1c y\u00eau c\u1ea7u:<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + \u0110\u01b0\u1eddng k\u00ednh h\u1ea1t v\u1eadt li\u1ec7u l\u1edbp tr\u00ean l\u1edbn h\u01a1n \u0111\u01b0\u1eddng k\u00ednh h\u1ea1t l\u1edbp d\u01b0\u1edbi, \u0111\u1ec3 c\u1eb7n b\u1ea9n c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn s\u1ebd \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i \u1edf l\u1edbp tr\u00ean, c\u1eb7n b\u1ea9n c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf chuy\u1ec3n xu\u1ed1ng v\u00e0 gi\u1eef l\u1ea1i \u1edf l\u1edbp d\u01b0\u1edbi, Nh\u1edd v\u1eady, dung l\u01b0\u1ee3ng ch\u1ee9a c\u1eb7n b\u1ea9n trong l\u1edbp v\u1eadt li\u1ec7u t\u0103ng l\u00ean.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + Tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a v\u1eadt li\u1ec7u l\u1ecdc l\u1edbp tr\u00ean nh\u1ecf h\u01a1n tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a v\u1eadt li\u1ec7u l\u1ecdc l\u1edbp d\u01b0\u1edbi \u0111\u1ec3 tr\u00e1nh s\u1ef1 x\u00e1o tr\u1ed9n 2 l\u1edbp v\u1eadt li\u1ec7u khi r\u1eeda l\u1ecdc.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + Hai lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 gi\u00e3n n\u1edf khi r\u1eeda ng\u01b0\u1ee3c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau, \u0111\u1ec3 tr\u00e1nh s\u1ef1 x\u00e1o tr\u1ed9n v\u00e0 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c chi\u1ec1u cao l\u1edbp v\u1eadt li\u1ec7u khi r\u1eeda gi\u00e3n n\u1edf khi r\u1eeda, tr\u00e1nh tr\u00f4i v\u1eadt li\u1ec7u.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Th\u00f4ng th\u01b0\u1eddng, than Anthraxit \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m v\u1eadt li\u1ec7u tr\u00ean, c\u00f2n l\u1edbp v\u1eadt li\u1ec7u d\u01b0\u1edbi s\u1eed d\u1ee5ng c\u00e1t th\u1ea1ch anh. Than Anthraxit l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u x\u1ed1p, c\u00f3 nhi\u1ec1u l\u1ed7 r\u1ed7ng, di\u1ec7n t\u00edch ti\u1ebfp x\u00fac b\u1ec1 m\u1eb7t l\u1edbn, do \u0111\u00f3 s\u1ee9c h\u00fat b\u00e1m c\u1eb7m l\u1edbn h\u01a1n c\u00e1t th\u1ea1ch anh th\u00f4ng th\u01b0\u1eddng (l\u1edbn h\u01a1n 2 – 2,5 l\u1ea7n). \u0110\u1eb7c t\u00ednh v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh h\u1ea1t, \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t, tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang v\u00e0 \u0111\u1ed9 n\u1edf c\u1ee7a v\u1eadt li\u1ec7u l\u1ecdc khi r\u1eeda \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u tr\u00ean.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 So v\u1edbi b\u1ec3 l\u1ecdc m\u1ed9t l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc c\u00f9ng chi\u1ec1u d\u00e0y th\u00ec b\u1ec3 l\u1ecdc hai l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m sau:<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + \u0110\u1ed9 t\u0103ng t\u1ed5n th\u1ea5t \u00e1p l\u1ef1c nh\u1ecf h\u01a1n.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + Th\u1eddi gian l\u1ecdc hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau l\u1ecdc t\u1ed1t h\u01a1n.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C\u00f3 th\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 l\u1ecdc v\u00e0 chu k\u1ef3 l\u00e0m vi\u1ec7c c\u1ee7a b\u1ec3. B\u1ec3 l\u1ecdc hai l\u1edbp v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng x\u1eed l\u00fd c\u1ea3 n\u01b0\u1edbc m\u1eb7t v\u00e0 n\u01b0\u1edbc ng\u1ea7m. Chu k\u1ef3 l\u00e0m vi\u1ec7c c\u1ee7a b\u1ec3 l\u1edbn h\u01a1n, trong khi b\u1ec3 c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi t\u1ed1c \u0111\u1ed9 l\u1ecdc l\u1edbn h\u01a1n so v\u1edbi b\u1ec3 l\u1ecdc m\u1ed9t l\u1edbp v\u1eadt li\u1ec7u (v\u1eadn t\u1ed1c c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1eeb 10-12m\/h ho\u1eb7c cao h\u01a1n thay v\u00ec 5-7m\/h). Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau l\u1ecdc c\u0169ng t\u0103ng.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t v\u1edbi b\u1ec3 l\u1ecdc nhanh hai l\u1edbp l\u00e0 v\u1ea5n \u0111\u1ec1 r\u1eeda l\u1ecdc. Khi r\u1eeda ng\u01b0\u1ee3c, r\u1ea5t d\u1ec5 b\u1ecb tr\u00f4i m\u1ea5t l\u1edbp v\u1eadt li\u1ec7u tr\u00ean c\u00f9ng v\u1edbi n\u01b0\u1edbc r\u1eeda l\u1ecdc ra ngo\u00e0i. Bi\u1ec7n ph\u00e1p r\u1eeda l\u1ecdc ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 ra ng\u01b0\u1ee3c b\u1eb1ng n\u01b0\u1edbc k\u1ebft h\u1ee3p v\u1edbi qu\u00e9t b\u1ec1 m\u1eb7t d\u00f2ng n\u01b0\u1edbc qua h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i di \u0111\u1ed9ng hay c\u1ed1 \u0111\u1ecbnh. V\u1ea5n \u0111\u1ec1 nghi\u00ean c\u1ee9u \u1edf \u0111\u00e2y l\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00f4ng s\u1ed1 v\u1eadn h\u00e0nh: th\u00e0nh ph\u1ea7n c\u1ea5p ph\u1ed1i h\u1ea1t, c\u00e1c th\u00f4ng s\u1ed1 l\u1ecdc, ph\u01b0\u01a1ng ph\u00e1p r\u1eeda, c\u00e1c th\u00f4ng s\u1ed1 r\u1eeda l\u1ecdc,\u2026<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng c\u00f3 c\u00f4ng su\u1ea5t 120.000m3<\/sup>\/ng\u00e0y \u0111\u00eam, c\u1ea5p n\u01b0\u1edbc cho n\u1ed9i th\u00e0nh H\u1ea3i Ph\u00f2ng, l\u00e0 Nh\u00e0 m\u00e1y n\u01b0\u1edbc l\u1edbn nh\u1ea5t c\u1ee7a c\u00f4ng ty c\u1ea5p n\u01b0\u1edbc H\u1ea3i Ph\u00f2ng. D\u00e2y chuy\u1ec1n c\u00f4ng ngh\u1ec7 hi\u1ec7n nay nh\u01b0 sau: Ngu\u1ed3n n\u01b0\u1edbc m\u1eb7t s\u00f4ng R\u1ebf \u2192 C\u00f4ng tr\u00ecnh thu + tr\u1ea1m b\u01a1m c\u1ea5p I \u2192 Tuy\u1ebfn \u1ed1ng n\u01b0\u1edbc th\u00f4 D1000\u2192 H\u1ed3 s\u01a1 l\u1eafng \u2192 Ng\u0103n tr\u1ed9n c\u01a1 kh\u00ed (ph\u00e8n + v\u00f4i) \u2192 ng\u0103n ph\u1ea3n \u1ee9ng c\u01a1 kh\u00ed \u2192 b\u1ec3 l\u1eafng ngang thu n\u01b0\u1edbc cu\u1ed1i b\u1ec3 \u2192 Tr\u1ea1m b\u01a1m d\u00e2ng n\u01b0\u1edbc \u2192 3 kh\u1ed1i b\u1ec3 l\u1ecdc, m\u1ed7i kh\u1ed1i 6 ng\u0103n \u2192 Tr\u1ed9n Clo \u2192 Tr\u1ea1m b\u01a1m c\u1ea5p 2 \u2192 M\u1ea1ng l\u01b0\u1edbi c\u1ea5p n\u01b0\u1edbc.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Nhu c\u1ea7u d\u00f9ng n\u01b0\u1edbc trong khu v\u1ef1c n\u1ed9i th\u00e0nh Th\u00e0nh ph\u1ed1 H\u1ea3i Ph\u00f2ng \u0111\u1ebfn 2010 l\u00e0 : 180.000m3<\/sup>\/ng\u00e0y \u0111\u00eam. Di\u1ec7n t\u00edch m\u1eb7t b\u1eb1ng c\u1ee7a Nh\u00e0 m\u00e1y n\u01b0\u1edbc \u0111\u00e3 h\u1ebft, kh\u00f3 c\u00f3 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 x\u00e2y d\u1ef1ng th\u00eam c\u00f4ng tr\u00ecnh. Kh\u00f3 kh\u0103n nh\u1ea5t l\u00e0 c\u1ee5m b\u1ec3 l\u1ecdc, v\u00ec c\u1ee5m c\u00f4ng tr\u00ecnh b\u1ec3 l\u1eafng c\u00f2n c\u00f3 c\u00f3 th\u1ec3 c\u1ea3i t\u1ea1o \u0111\u1ec3 n\u00e2ng th\u00eam c\u00f4ng su\u1ea5t. Gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t l\u00e0: C\u1ea3i t\u1ea1o c\u00e1c kh\u1ed1i b\u1ec3 l\u1ecdc th\u00e0nh b\u1ec3 l\u1ecdc nhanh 2 l\u1edbp v\u1eadt li\u1ec7u \u0111\u1ec3 t\u0103ng c\u00f4ng su\u1ea5t l\u00e0m vi\u1ec7c c\u1ee7a tr\u1ea1m x\u1eed l\u00fd. \u0110\u1ec1 t\u00e0i do C\u00f4ng ty c\u1ea5p n\u01b0\u1edbc H\u1ea3i Ph\u00f2ng ph\u1ed1i h\u1ee3p v\u1edbi Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc X\u00e2y d\u1ef1ng (B\u1ed9 m\u00f4n C\u1ea5p tho\u00e1t n\u01b0\u1edbc) th\u1ef1c hi\u1ec7n.<\/p>\n

2. V\u1eacT LI\u1ec6U V\u00c0 PH\u01af\u01a0NG PH\u00c1P NGHI\u00caN C\u1ee8U<\/b><\/b><\/p>\n

Nghi\u00ean c\u1ee9u Pilot<\/b><\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 – B\u01b0\u1edbc 1: X\u00e2y d\u1ef1ng 2 c\u1ed9t l\u1ecdc Pilot A, B c\u1ea1nh kh\u1ed1i b\u1ec3 K3. Ngu\u1ed3n n\u01b0\u1edbc: t\u1eeb m\u01b0\u01a1ng d\u1eabn n\u01b0\u1edbc ph\u00e2n ph\u1ed1i v\u00e0o c\u00e1c ng\u0103n l\u1ecdc c\u1ee7a b\u1ec3 l\u1ecdc K3. C\u1ed9t A: 1 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc (C\u00e1t th\u1ea1ch anh). C\u1ed9t B: 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc (C\u00e1t th\u1ea1ch anh + than Anthraxit).<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + \u0110\u1ee3t 1: D\u00f9ng than c\u00f3 c\u1ee1 h\u1ea1t hi\u1ec7u qu\u1ea3 ES = 0,87mm v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ed3ng nh\u1ea5t<\/p>\n

UC = 1,35 t\u1ed1c \u0111\u1ed9 l\u1ecdc Vl\u1ecdc = 7,5m\/h<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + \u0110\u1ee3t 1.2: D\u00f9ng than c\u00f3 c\u1ee1 h\u1ea1t hi\u1ec7u qu\u1ea3 ES = 1.08mm v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ed3ng nh\u1ea5t<\/p>\n

UC = 1,4 t\u1ed1c \u0111\u1ed9 l\u1ecdc Vl\u1ecdc = 6-12m\/h<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + \u0110\u1ee3t 1.3: C\u1ed9t l\u1ecdc A: gi\u1eef nguy\u00ean nh\u01b0 th\u00ed nghi\u1ec7m \u0111\u1ee3t 2. C\u1ed9t l\u1ecdc B thay th\u1ebf b\u1eb1ng lo\u1ea1i c\u00f3 c\u1ee1 h\u1ea1t l\u1edbn h\u01a1n, c\u00f3 ES = 1,27, UC = 1,39.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 1: Bi\u1ebfn thi\u00ean \u0111\u1ed9 \u0111\u1ee5c qua 2 c\u1ed9t l\u1ecdc A (1 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc) v\u00e0 B (2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc)<\/i><\/p>\n

 <\/p>\n

Nghi\u00ean c\u1ee9u th\u1eed nghi\u1ec7m v\u1edbi 1 b\u1ec3 l\u1ecdc, so s\u00e1nh v\u1edbi c\u00e1c b\u1ec3 l\u1ecdc kh\u00e1c<\/b><\/b><\/p>\n

– C\u1ea3i t\u1ea1o 1 ng\u0103n b\u1ec3 c\u1ee7a kh\u1ed1i b\u1ec3 l\u1ecdc K2 th\u00e0nh b\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u v\u00e0 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m. So s\u00e1nh v\u1edbi c\u00e1c ng\u0103n b\u1ec3 l\u1ecdc kh\u00e1c (m\u1ed9t l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc).<\/p>\n

– L\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p v\u00e0 quy tr\u00ecnh r\u1eeda l\u1ecdc.<\/p>\n

– Th\u1eddi gian: t\u1eeb ng\u00e0y 8\/6 \u0111\u1ebfn 31\/8\/2004<\/p>\n

Tri\u1ec3n khai \u00e1p d\u1ee5ng cho to\u00e0n b\u1ed9 c\u00e1c b\u1ec3 l\u1ecdc. X\u00e1c \u0111\u1ecbnh c\u00e1c ch\u1ec9 ti\u00eau kinh t\u1ebf k\u1ef9 thu\u1eadt.<\/p>\n

– Th\u1eddi gian: T\u1eeb th\u00e1ng 8\/2005 \u0111\u1ebfn nay.<\/p>\n

3. K\u1ebeT QU\u1ea2 NGHI\u00caN C\u1ee8U V\u00c0 TH\u1ea2O LU\u1eacN<\/b><\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u00e0 th\u1ea3o lu\u1eadn tr\u00ean m\u00f4 h\u00ecnh Pilot<\/b><\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + \u0110\u1ee3t 1.1: \u0110\u1ed9 trong c\u1ee7a n\u01b0\u1edbc l\u1ecdc t\u1ed1t nh\u01b0ng chu k\u1ef3 l\u1ecdc kh\u00f4ng qu\u00e1 24h. C\u1ee1 than n\u00e0y ch\u01b0a cho ph\u00e9p \u0111\u1ea1t hi\u1ec7u qu\u1ea3 nh\u01b0 mong mu\u1ed1n.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + \u0110\u1ee3t 1.2: \u0110\u1ed9 trong c\u1ee7a n\u01b0\u1edbc l\u1ecdc t\u1ed1t, chu k\u1ef3 l\u1ecdc \u0111\u1ea1t t\u1eeb 24 \u2013 48h. C\u1ee5 th\u1ec3 nh\u01b0 sau (b\u1ea3ng 1):<\/p>\n

B\u1ea3ng 1: Th\u00f4ng s\u1ed1 v\u1eadn h\u00e0nh m\u00f4 h\u00ecnh c\u1ed9t l\u1ecdc A v\u00e0 B<\/i><\/i><\/p>\n

\u00a0\"\"<\/p>\n

\u00b7\u00a0 \u00a0 \u00a0 \u00a0\u00a0Khi t\u1ed1c \u0111\u1ed9 l\u1ecdc c\u1ee7a hai c\u1ed9t nh\u01b0 nhau (6m\/h) \u0111\u1ed9 \u0111\u1ee5c n\u01b0\u1edbc l\u1ecdc c\u1ed9t A th\u01b0\u1eddng xuy\u00ean l\u1edbn g\u1ea5p 1,5 l\u1ea7n \u0111\u1ed9 \u0111\u1ee5c n\u01b0\u1edbc l\u1ecdc c\u1ee7a c\u1ed9t B.<\/p>\n

\u00b7\u00a0 \u00a0 \u00a0 \u00a0\u00a0N\u00e2ng t\u1ed1c \u0111\u1ed9 l\u1ecdc c\u1ee7a c\u1ed9t l\u1ecdc B 2 l\u1ea7n (12m\/h), th\u00ec \u0111\u1ed9 \u0111\u1ee5c c\u1ee7a n\u01b0\u1edbc l\u1ecdc B v\u1eabn nh\u1ecf h\u01a1n \u0111\u1ed9 \u0111\u1ee5c so v\u1edbi c\u1ed9t l\u1ecdc A.<\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0V\u1edbi chu k\u1ef3 l\u1ecdc 24h, c\u1ed9t l\u1ecdc B v\u1eabn ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u00e0 kh\u00f4ng b\u1ecb ch\u00edt t\u1eafc.<\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Chu k\u1ef3 c\u1ed9t l\u1ecdc B c\u00f3 th\u1ec3 k\u00e9o d\u00e0i t\u1edbi 44h.<\/p>\n

+ \u0110\u1ee3t 1.3: N\u01b0\u1edbc l\u1ecdc c\u00f3 \u0111\u1ed9 trong t\u1ed1t h\u01a1n l\u1ea7n 1, nh\u01b0ng k\u00e9m h\u01a1n l\u1ea7n 2. Do v\u1eadt chon v\u1eadt li\u1ec7u l\u1ecdc l\u1ea7n 2 c\u00f3 ES = 1,08, UC = 1,40\u00a0 th\u00ed nghi\u1ec7m v\u00e0o b\u1ec3 l\u1ecdc K2.<\/p>\n

– Lo\u1ea1i than c\u00f3 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ES = 1,08, UC = 1,40 c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p v\u1edbi c\u00e1t hi\u1ec7n t\u1ea1i c\u1ee7a An D\u01b0\u01a1ng l\u00e0m v\u1eadt li\u1ec7u l\u1ecdc \u0111\u1ec3 n\u00e2ng cao c\u00f4ng su\u1ea5t b\u1ec3 l\u1ecdc t\u1eeb 2 – 2,5 l\u1ea7n m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc l\u1ecdc.<\/p>\n

– C\u00f3 th\u1ec3 \u00e1p d\u1ee5ng r\u1eeda l\u1ecdc b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00f3 \u2013 n\u01b0\u1edbc \u0111\u1ec3 r\u1eeda b\u1ec3 l\u1ecdc 2 l\u1edbp, \u0111i\u1ec1u n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c kh\u1ed1i b\u1ec3 hi\u1ec7n c\u00f3 trong nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng.<\/p>\n

– Khi chu k\u1ef3 r\u1eeda l\u1ecdc c\u1ee7a b\u1ec3 k\u00e9o d\u00e0i \u0111\u1ebfn 48h, s\u1ebd ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c \u0111\u00e1ng k\u1ec3 l\u01b0\u1ee3ng n\u01b0\u1edbc s\u1ea1ch c\u1ea7n cho r\u1eeda l\u1ecdc.<\/p>\n

K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u tr\u00ean b\u1ec3 l\u1ecdc th\u1eed nghi\u1ec7m<\/b><\/b><\/p>\n

– \u0110\u1ed1i v\u1edbi b\u1ec3 l\u1ecdc 1 l\u1edbp:<\/i><\/b><\/i><\/b><\/p>\n

+ V\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau l\u1ecdc: Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 trong c\u1ee7a n\u01b0\u1edbc l\u1ecdc t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi b\u1ec3 l\u1ecdc kh\u00e1c \u0111ang v\u1eadn h\u00e0nh.<\/p>\n

+ V\u1ec1 chu k\u1ef3 r\u1eeda l\u1ecdc: Trung b\u00ecnh kho\u1ea3ng 16h.<\/p>\n

– \u0110\u1ed1i v\u1edbi b\u1ec3 l\u1ecdc 2 l\u1edbp:<\/i><\/b><\/i><\/b><\/p>\n

+ V\u1ec1 hi\u1ec7u qu\u1ea3 r\u1eeda l\u1ecdc: Ho\u00e0n to\u00e0n \u00e1p d\u1ee5ng khi r\u1eeda l\u1ecdc b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00f3 n\u01b0\u1edbc \u0111\u1ed1i v\u1edbi b\u1ec3 l\u1ecdc 2 l\u1edbp \u0111\u1ec3 lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng c\u1eb7n b\u1ea9n t\u00edch t\u1ee5 trong l\u1edbp v\u1eadt li\u1ec7u, sau khi r\u1eeda \u0111\u1ed9 x\u1ed1p c\u1ee7a v\u1eadt li\u1ec7u t\u0103ng l\u00ean.<\/p>\n

+ V\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau l\u1ecdc: Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 trong c\u1ee7a n\u01b0\u1edbc l\u1ecdc b\u1ec3 th\u00ed nghi\u1ec7m t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi b\u1ec3 l\u1ecdc c\u00e1t \u0111ang v\u1eadn h\u00e0nh.<\/p>\n

+ V\u1ec1 t\u1ed1c \u0111\u1ed9 l\u1ecdc: B\u1ec3 l\u1ecdc 2 l\u1edbp c\u00f3 th\u1ec3 v\u1eadn h\u00e0nh v\u1edbi t\u1ed1c \u0111\u1ed9 12m\/h.<\/p>\n

+ V\u1ec1 chu k\u1ef3 r\u1eeda l\u1ecdc: 36 \u2013 48h (trung b\u00ecnh 42h).<\/p>\n

Quy tr\u00ecnh r\u1eeda l\u1ecdc \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng nh\u01b0 sau:<\/p>\n

+ H\u1ea1 th\u1ea5p m\u1ef1c n\u01b0\u1edbc trong b\u1ec3 \u0111\u1ebfn c\u00e1ch b\u1ec1 m\u1eb7t than 0,1m, ti\u1ebfn h\u00e0nh s\u1ee5c b\u1ec3 b\u1eb1ng kh\u00f4ng kh\u00ed, c\u01b0\u1eddng \u0111\u1ed9 15 \u2013 20l\/s-m2<\/sup>, th\u1eddi gian s\u1ee5c k\u00e9o d\u00e0i trong 3 \u2013 5 ph\u00fat.<\/p>\n

+ Ng\u1eebng s\u1ee5c kh\u00ed ho\u00e0n to\u00e0n r\u1ed3i m\u1edbi ti\u1ebfn h\u00e0nh s\u1ee5c r\u1eeda\u00a0 ng\u01b0\u1ee3c b\u1eb1ng n\u01b0\u1edbc v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 ban \u0111\u1ea7u 3 – 4l\/s-m2<\/sup>\u00a0trong th\u1eddi gian 2 \u2013 3 ph\u00fat, k\u1ebft h\u1ee3p x\u1ea3 kh\u00ed d\u01b0 trong b\u1ec3.<\/p>\n

+ T\u0103ng c\u01b0\u1eddng \u0111\u1ed9 r\u1eeda ng\u01b0\u1ee3c l\u00ean 7 l\/s-m2<\/sup>, th\u1eddi gian s\u1ee5c kho\u1ea3ng 6 – 8 ph\u00fat.<\/p>\n

+ K\u1ebft th\u00fac qu\u00e1 tr\u00ecnh r\u1eeda l\u1ecdc, \u0111\u01b0a b\u1ec3 tr\u1edf l\u1ea1i l\u00e0m vi\u1ec7c b\u00ecnh th\u01b0\u1eddng.<\/p>\n

K\u1ebft qu\u1ea3 \u1ee9ng d\u1ee5ng cho to\u00e0n b\u1ed9 18 b\u1ec3 l\u1ecdc trong Nh\u00e0 m\u00e1y An D\u01b0\u01a1ng.<\/p>\n

K\u1ebft qu\u1ea3 v\u1eadn h\u00e0nh trong c\u00e1c n\u0103m t\u1eeb n\u0103m 2005 \u0111\u1ebfn nay:<\/p>\n

B\u1ec3 l\u1ecdc 2 l\u1edbp:<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00b7 V\u1ec1 hi\u1ec7u qu\u1ea3 r\u1eeda l\u1ecdc: Ho\u00e0n to\u00e0n \u00e1p d\u1ee5ng khi r\u1eeda l\u1ecdc b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00f3 n\u01b0\u1edbc \u0111\u1ed1i v\u1edbi b\u1ec3 l\u1ecdc 2 l\u1edbp \u0111\u1ec3 lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng c\u1eb7n b\u1ea9n t\u00edch t\u1ee5 trong l\u1edbp v\u1eadt li\u1ec7u, sau khi r\u1eeda \u0111\u1ed9 x\u1ed1p c\u1ee7a v\u1eadt li\u1ec7u t\u0103ng l\u00ean.<\/p>\n

\u00a0 \u00a0 \u00a0\u00b7\u00a0Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 trong c\u1ee7a n\u01b0\u1edbc l\u1ecdc b\u1ec3 th\u00ed nghi\u1ec7m t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi b\u1ec3 l\u1ecdc c\u00e1t \u0111ang v\u1eadn h\u00e0nh<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00b7\u00a0V\u1ec1 t\u1ed1c \u0111\u1ed9 l\u1ecdc: B\u1ec3 l\u1ecdc 2 l\u1edbp c\u00f3 th\u1ec3 v\u1eadn h\u00e0nh v\u1edbi t\u1ed1c \u0111\u1ed9 12m\/h.<\/p>\n

\u00a0 \u00a0 \u00a0\u00b7\u00a0V\u1ec1 chu k\u1ef3 r\u1eeda l\u1ecdc: 36 \u2013 48h (trung b\u00ecnh 42h).<\/p>\n

B\u1ec3 l\u1ecdc 1 l\u1edbp:<\/p>\n

\u00a0 \u00a0 \u00a0\u00a0\u00b7\u00a0V\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau l\u1ecdc: Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 trong c\u1ee7a n\u01b0\u1edbc l\u1ecdc t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi b\u1ec3 l\u1ecdc kh\u00e1c \u0111ang v\u1eadn h\u00e0nh.<\/p>\n

\u00a0 \u00a0 \u00a0\u00a0\u00b7\u00a0V\u1ec1 chu k\u1ef3 r\u1eeda l\u1ecdc: Trung b\u00ecnh kho\u1ea3ng 16h.<\/p>\n

B\u1ea3ng 2: C\u00e1c th\u00f4ng s\u1ed1 c\u1ee7a b\u1ec3 l\u1ecdc 2 l\u1edbp<\/i><\/p>\n

\u00a0\"\"<\/p>\n

K\u1ebft qu\u1ea3 so s\u00e1nh c\u00e1c ch\u1ec9 ti\u00eau kinh t\u1ebf – k\u1ef9 thu\u1eadt:<\/p>\n

– Khi n\u00e2ng c\u00f4ng su\u1ea5t l\u1ec3 l\u1ecdc c\u1ee7a An D\u01b0\u01a1ng l\u00ean 140.000m3<\/sup>\/ng\u00e0y \u0111\u00eam b\u1eb1ng c\u00e1ch n\u00e2ng cao chi\u1ec1u d\u00e0y l\u1edbp c\u00e1t l\u1ecdc l\u00ean 1,4m ho\u1eb7c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p c\u00e1t l\u1ecdc d\u00e0y 0,6m v\u00e0 than Anthraxit 0,5m th\u00ec hi\u1ec7u qu\u1ea3 kinh t\u1ebf \u0111\u01b0\u1ee3c kh\u00e1i to\u00e1n nh\u01b0 sau:<\/p>\n

+ \u0110\u1ed1i v\u1edbi b\u1ec3 l\u1ecdc 1 l\u1edbp (n\u00e2ng cao chi\u1ec1u d\u00e0y c\u00e1t l\u1ecdc l\u00ean 1,4m: T\u1ed5ng c\u1ed9ng chi ph\u00ed trong 1 n\u0103m: 1.875.3000.000 \u0111\u1ed3ng\/n\u0103m.<\/p>\n

+ \u0110\u1ed1i v\u1edbi b\u1ec3 l\u1ecdc 2 l\u1edbp: T\u1ed5ng c\u1ed9ng chi ph\u00ed 1 n\u0103m: 1.2161.907.143 \u0111\u1ed3ng\/n\u0103m.<\/p>\n

– V\u1ec1 lo\u1ea1i v\u1eadt li\u1ec7u: Lo\u1ea1i than c\u00f3 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ES = 1,08, UC = 1,40 ho\u00e0n to\u00e0n k\u1ebft h\u1ee3p v\u1edbi c\u00e1t hi\u1ec7n t\u1ea1i c\u00f3 \u1edf An D\u01b0\u01a1ng l\u00e0m v\u1eadt li\u1ec7u l\u1ecdc \u0111\u1ec3 n\u00e2ng cao c\u00f4ng su\u1ea5t b\u1ec3 l\u1ecdc.<\/p>\n

– \u00c1p d\u1ee5ng \u0111\u01b0\u1ee3c r\u1eeda l\u1ecdc b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00f3 \u2013 n\u01b0\u1edbc c\u00f3 k\u1ebft h\u1ee3p qu\u00e9t m\u1eb7t b\u1eb1ng n\u01b0\u1edbc sau l\u1eafng \u0111\u1ec3 r\u1eeda b\u1ec3 l\u1ecdc 2 l\u1edbp, \u0111i\u1ec1u n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c kh\u1ed1i b\u1ec3 hi\u1ec7n c\u00f3 trong Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng.<\/p>\n

– C\u01b0\u1eddng \u0111\u1ed9 r\u1eeda n\u01b0\u1edbc ng\u01b0\u1ee3c c\u1ee7a b\u1ec3 l\u1ecdc 2 l\u1edbp kho\u1ea3ng 7 l\/s-m2<\/sup>, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u00e1y b\u01a1m r\u1eeda l\u1ecdc hi\u1ec7n c\u00f3 \u0111ang v\u1eadn h\u00e0nh t\u1ea1i An D\u01b0\u01a1ng.<\/p>\n

– Chu k\u1ef3 r\u1eeda l\u1ecdc c\u1ee7a b\u1ec3 k\u00e9o d\u00e0i \u0111\u1ebfn 36 \u2013 48 gi\u1edd.<\/p>\n

– B\u1ec3 l\u1ecdc v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh (trong 2 th\u00e1ng v\u1eadn h\u00e0nh li\u00ean t\u1ee5c kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 s\u1ef1 c\u1ed1 n\u00e0o).<\/p>\n

– v\u1ec1 m\u1ee9c \u0111\u1ed9 hao h\u1ee5t than Anthraxit r\u1ea5t nh\u1ecf: trong 2 th\u00e1ng v\u1eadn h\u00e0nh li\u00ean t\u1ee5c, l\u1edbp than h\u1ee5t \u0111i kho\u1ea3ng 1,5 \u2013 2cm (kho\u1ea3ng 3 \u2013 4% trong 2 th\u00e1ng) bao g\u1ed3m c\u1ea3 vi\u1ec7c s\u1ee5c r\u1eeda \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c h\u1ea1t qu\u00e1 nh\u1ecf.<\/p>\n

– V\u1edbi v\u1eadn t\u1ed1c l\u1ecdc \u0111\u1ea1t t\u1eeb 10 \u2013 12m\/h, khi c\u1ea7n n\u00e2ng c\u00f4ng su\u1ea5t NMN An D\u01b0\u01a1ng l\u00ean 160.000 \u2013 180.000 m3<\/sup>\/ng\u00e0y \u0111\u00eam th\u00ec kh\u00f4ng ph\u1ea3i x\u00e2y d\u1ef1ng th\u00eam b\u1ec3 l\u1ecdc m\u00e0 ch\u1ec9 c\u1ea3i t\u1ea1o l\u1ea1i \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng ngh\u1ec7.<\/p>\n

– So s\u00e1nh chi ph\u00ed v\u1eadn h\u00e0nh khi s\u1eed d\u1ee5ng b\u1ec3 l\u1ecdc 1 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc v\u00e0 b\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc cho th\u1ea5y b\u1ec3 l\u1ecdc 2 l\u1edbp c\u00f3 chi ph\u00ed th\u1ea5p h\u01a1n. V\u00ec v\u1eady, ch\u00fang t\u00f4i \u0111\u1ec1 xu\u1ea5t ch\u1ecdn ph\u01b0\u01a1ng \u00e1n d\u00f9ng b\u1ec3 l\u1ecdc 2 l\u1edbp.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Cho \u0111\u1ebfn nay, k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho to\u00e0n b\u1ed9 c\u00e1c kh\u1ed1i b\u1ec3 l\u1ecdc t\u1ea1i Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng, Nh\u00e0 m\u00e1y n\u01b0\u1edbc V\u1eadt C\u00e1ch v\u00e0 s\u1ebd ti\u1ebfn t\u1edbi \u00e1p d\u1ee5ng trong c\u00e1c Nh\u00e0 m\u00e1y n\u01b0\u1edbc kh\u00e1c c\u1ee7a c\u00f4ng ty c\u1ea5p n\u01b0\u1edbc H\u1ea3i Ph\u00f2ng.<\/p>\n

4. K\u1ebeT LU\u1eacN, KI\u1ebeN NGH\u1eca<\/b><\/b><\/p>\n

– B\u1ec3 l\u1ecdc nhanh 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc, v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, so v\u1edbi b\u1ec3 l\u1ecdc nhanh 1 l\u1edbp truy\u1ec1n th\u1ed1ng c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m nh\u01b0: \u0110\u1ed9 t\u0103ng t\u1ed5n th\u1ea5t \u00e1p l\u1ef1c nh\u1ecf h\u01a1n, th\u1eddi gian l\u1ecdc hi\u1ec7u qu\u1ea3 t\u1ed1t h\u01a1n, ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau l\u1ecdc t\u1ed1t h\u01a1n.<\/p>\n

– K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf \u0111\u00e3 kh\u1eb3ng \u0111\u1ecbnh nh\u1eefng \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i n\u00f3i tr\u00ean. B\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi v\u1eadn t\u1ed1c l\u1ecdc 10 \u2013 12m\/h., chu k\u1ef3 l\u1ecdc k\u00e9o d\u00e0i g\u1ea5p 2 \u2013 3 l\u1ea7n so v\u1edbi b\u1ec3 l\u1ecdc nhanh 1 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc. l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ea7n thi\u1ebft cho r\u1eeda l\u1ecdc gi\u1ea3m.<\/p>\n

– Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u v\u00e0 \u1ee9ng d\u1ee5ng th\u00e0nh c\u00f4ng trong th\u1ef1c t\u1ebf c\u00f4ng ngh\u1ec7 b\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc, trong x\u1eed l\u00fd n\u01b0\u1edbc c\u1ea5p v\u1edbi ngu\u1ed3n n\u01b0\u1edbc m\u1eb7t \u0111\u00e3 qua x\u1eed l\u00fd b\u1eb1ng keo t\u1ee5 v\u00e0 l\u1eafng. \u0110\u00e3 ho\u00e0n thi\u1ec7n quy tr\u00ecnh r\u1eeda l\u1ecdc \u0111\u1eb7c th\u00f9, ph\u00f9 h\u1ee3p cho b\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u, k\u1ebft h\u1ee3p gi\u00f3 v\u1edbi n\u01b0\u1edbc, thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t, k\u1ebf th\u1eeba nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p r\u1eeda l\u1ecdc truy\u1ec1n th\u1ed1ng c\u1ee7a b\u1ec3 l\u1ecdc 1 l\u1edbp v\u1eadt li\u1ec7u (gi\u00f3 + n\u01b0\u1edbc) cho b\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc m\u00e0 v\u1eabn kh\u00f4ng b\u1ecb r\u1eeda tr\u00f4i m\u1ea5t l\u1edbp v\u1eadt li\u1ec7u ph\u00eda tr\u00ean (anthraxit), \u0111\u1ed3ng th\u1eddi tr\u00e1nh \u0111\u01b0\u1ee3c nh\u1eefng kh\u00f3 kh\u0103n trong vi\u1ec7c ch\u1ebf t\u1ea1o, v\u1eadn h\u00e0nh v\u00e0 b\u00e3o d\u01b0\u1ee1ng h\u1ec7 th\u1ed1ng r\u1eeda b\u1ec1 m\u1eb7t b\u1eb1ng h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i n\u01b0\u1edbc r\u1eeda di \u0111\u1ed9ng v\u00e0 n\u01b0\u1edbc ngo\u00e0i v\u1eabn \u00e1p d\u1ee5ng cho b\u1ec3 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng quy m\u00f4 l\u1edbn cho Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng, th\u00e0nh ph\u1ed1 H\u1ea3i Ph\u00f2ng (g\u00f3p ph\u1ea7n t\u0103ng c\u00f4ng su\u1ea5t Nh\u00e0 m\u00e1y t\u1eeb 120.000 l\u00ean 140.000 m3<\/sup>\/ng\u00e0y \u0111\u00eam) v\u00e0 Nh\u00e0 m\u00e1y n\u01b0\u1edbc V\u1eadt C\u00e1ch.<\/p>\n

– Ki\u1ebfn ngh\u1ecb m\u1ea1nh d\u1ea1n \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 l\u1ecdc 2 l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc cho c\u00e1c Nh\u00e0 m\u00e1y n\u01b0\u1edbc \u1edf Vi\u1ec7t Nam, x\u1eed l\u00fd c\u1ea3 n\u01b0\u1edbc m\u1eb7t v\u00e0 n\u01b0\u1edbc ng\u1ea7m.<\/p>\n

T\u00c0I LI\u1ec6U THAM KH\u1ea2O<\/b><\/b><\/p>\n

(1) \u0110\u1ec1 t\u00e0i NCKH c\u1ea5p tr\u01b0\u1eddng: 28-2007\/KHXD. Nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 l\u1ecdc n\u01b0\u1edbc v\u1edbi hai l\u1edbp v\u1eadt li\u1ec7u l\u1ecdc trong tr\u1ea1m x\u1eed l\u00fd c\u1ea5p n\u01b0\u1edbc. Ch\u1ee7 nhi\u1ec7m \u0111\u1ec1 t\u00e0i: PGS.TS Nguy\u1ec5n Vi\u1ec7t Anh, tr\u01b0\u1eddng \u0110H X\u00e2y d\u1ef1ng, 12\/2007.<\/i><\/i><\/p>\n

(2) C\u00f4ng ty c\u1ea5p n\u01b0\u1edbc H\u1ea3i Ph\u00f2ng. B\u00e1o c\u00e1o k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 l\u1ecdc n\u01b0\u1edbc m\u1edbi t\u1ea1i Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng. Nh\u00f3m nghi\u00ean c\u1ee9u c\u1ee7a C\u00f4ng ty c\u1ea5p n\u01b0\u1edbc H\u1ea3i Ph\u00f2ng v\u00e0 \u0110H X\u00e2y d\u1ef1ng n\u0103m 2004.<\/i><\/i><\/p>\n

(3) C\u00f4ng ty c\u1ea5p n\u01b0\u01a1c H\u1ea3i Ph\u00f2ng. C\u00e1c s\u1ed1 li\u1ec7u quan tr\u1eafc, theo d\u00f5i ch\u1ea5t l\u01b0\u1ee3ng t\u1ea1i Nh\u00e0 m\u00e1y n\u01b0\u1edbc An D\u01b0\u01a1ng (2010 \u2013 2012).<\/i><\/i><\/p>\n

(4) Lu\u1eadn v\u0103n Th\u1ea1c s\u1ef9 k\u1ef9 thu\u1eadt: \u0110\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng, hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd n\u01b0\u1edbc c\u1ee7a Nh\u00e0 m\u00e1y n\u01b0\u1edbc Vi\u1ec7t H\u00f2a, H\u1ea3i D\u01b0\u01a1ng, so s\u00e1nh v\u1edbi m\u1ed9t s\u1ed1 Nh\u00e0 m\u00e1y c\u00f3 c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. Th\u1ea1ch Thanh Minh, tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc X\u00e2y d\u1ef1ng 2007.<\/i><\/i><\/p>\n

(5) Syed Quasim, Edward Motley, Guang Zhu. Water works engineering. Planning, Design & Operation. Prentice Hall PTR.2000.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"

> PGS.TS Nguy\u1ec5n Vi\u1ec7t Anh, >ThS.V\u0169 H\u1ed3ng D\u01b0\u01a1ng >ThS.Tr\u1ea7n D\u01b0\u01a1ng T\u00f3m t\u1eaft:\u00a0B\u1ec3 l\u1ecdc nhanh 2 l\u1edbp v\u1eadt li\u1ec7u c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m so v\u1edbi b\u1ec3 l\u1ecdc 1 l\u1edbp v\u1eadt li\u1ec7u nh\u01b0: dung l\u01b0\u1ee3ng ch\u1ee9a c\u1eb7n l\u1edbn, t\u1ed1c \u0111\u1ed9 l\u1ecdc l\u1edbn<\/p>\n","protected":false},"author":1,"featured_media":65,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/posts\/48"}],"collection":[{"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/comments?post=48"}],"version-history":[{"count":3,"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/posts\/48\/revisions"}],"predecessor-version":[{"id":211,"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/posts\/48\/revisions\/211"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/media\/65"}],"wp:attachment":[{"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/media?parent=48"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/categories?post=48"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vicosimex.com.vn\/en\/wp-json\/wp\/v2\/tags?post=48"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}