{"id":131,"date":"2018-11-07T18:44:43","date_gmt":"2018-11-07T18:44:43","guid":{"rendered":"https:\/\/robot.yeupet.vn\/?p=255"},"modified":"2018-11-07T18:44:43","modified_gmt":"2018-11-07T18:44:43","slug":"ham-luong-doc-to-ammonia-trong-nuoc-va-luu-luong-nuoc-chay-qua-vat-lieu-loc","status":"publish","type":"post","link":"https:\/\/robot.yeupet.vn\/index.php\/2018\/11\/07\/ham-luong-doc-to-ammonia-trong-nuoc-va-luu-luong-nuoc-chay-qua-vat-lieu-loc\/","title":{"rendered":"H\u00e0m l\u01b0\u1ee3ng \u0111\u1ed9c t\u1ed1 Ammonia trong n\u01b0\u1edbc v\u00e0 l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u1ea3y qua v\u1eadt li\u1ec7u l\u1ecdc."},"content":{"rendered":"
\n

Khi n\u00f3i \u0111\u1ebfn ch\u01a1i c\u00e1 r\u1ed3ng, th\u00ec ph\u1ea3i n\u00f3i \u0111\u1ebfn ch\u01a1i n\u01b0\u1edbc, m\u00e0 khi ch\u01a1i n\u01b0\u1edbc, th\u00ec chuy\u1ec7n \u0111\u1ea7u ti\u00ean ch\u00fang ta c\u1ea7n ph\u1ea3i quan t\u00e2m \u0111\u1ebfn l\u00e0 qu\u1ea3n l\u00fd h\u00e0m l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed9c t\u1ed1 ammonia t\u00edch t\u1ee5 trong n\u01b0\u1edbc . \u0110\u1ed9c t\u1ed1 ammonia l\u00e0 lo\u1ea1i \u0111\u1ed9c t\u1ed1 c\u00f3 t\u00e1c h\u1ea1i m\u1ea1nh nh\u1ea5t \u0111\u1ed1i v\u1edbi c\u00e1c con c\u00e1 r\u1ed3ng y\u00eau c\u1ee7a t\u1ea5t c\u1ea3 ch\u00fang ta . Ammonia t\u00edch t\u1ee5 nhi\u1ec1u hay \u00edt trong n\u01b0\u1edbc l\u00e0 qua s\u1ef1 ph\u00f3ng ti\u1ebft qua c\u01a1 quan b\u00e0i ti\u1ebft c\u1ee7a c\u00e1 r\u1ed3ng ph\u00f3ng th\u1ea3i ph\u00e2n\/n\u01b0\u1edbc ti\u1ec3u c\u0169ng nh\u01b0 s\u1ef1 ph\u00e2n hu\u1ef7 c\u1ee7a c\u00e1c lo\u1ea1i th\u1ee9c \u0103n d\u01b0 th\u1eeba trong n\u01b0\u1edbc .<\/p>\n

C\u00e1c cum vi sinh h\u1eedu \u00edch trong b\u1ec3 h\u1ed3 c\u00e1 r\u1ed3ng c\u00f3 nhi\u1ec7m v\u1ee5 ti\u00eau th\u1ee5 \u0111\u1ed9c t\u1ed1 ammonia, nh\u01b0ng \u0111\u1ec3 c\u00f3 th\u1ec3 xu\u1ea5t s\u1eafc ho\u00e0n th\u00e0nh ch\u1ee9c n\u0103ng n\u00e0y, ch\u00fang c\u1ea7n c\u00f3 d\u01b0\u1ee1ng kh\u00ed oxygen . C\u00e2u h\u1ecfi \u0111\u01b0\u1ee3c \u0111\u1eb7c kh\u00f4ng ph\u1ea3i l\u00e0 bao nhi\u00eau oxygen \u0111\u01b0\u1ee3c ho\u00e0 tan trong n\u01b0\u1edbc m\u00e0 \u0111i\u1ec1u ch\u00fang ta c\u1ea7n quan t\u00e2m l\u00e0 sau khi ho\u00e0 tan trong n\u01b0\u1edbc, h\u00e0m l\u01b0\u1ee3ng c\u1ee7a oxygen \u0111\u01b0\u1ee3c chuy\u00ean ch\u1edf v\u00e0 ch\u1ea3y qua c\u00e1c v\u1eadt li\u1ec7u l\u1ecdc theo l\u01b0u l\u01b0\u1ee3ng c\u1ee7a n\u01b0\u1edbc trong h\u1ed3 l\u00e0 \u0111i\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng !
Khi d\u00f2ng l\u01b0u l\u01b0\u1ee3ng c\u1ee7a n\u01b0\u1edbc \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n b\u1edfi m\u00e1y b\u01a1m qua c\u00e1c v\u1eadt li\u1ec7u l\u1ecdc trong h\u1ec7 th\u1ed1ng l\u1ecdc n\u01b0\u1edbc, th\u00ec ch\u00ednh l\u00fac \u1ea5y, ammonia s\u1ebb \u0111\u01b0\u1ee3c thanh t\u1ea9y .<\/p>\n

\"carong48\"<\/p>\n

B\u00e0i vi\u1ebft n\u00e0y s\u1ebb c\u00f9ng c\u00e1c b\u1ea1n t\u00ecm hi\u1ec3u xem m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa l\u01b0u l\u01b0\u1ee3ng d\u00f2ng n\u01b0\u1edbc ch\u1ea3y v\u00e0 h\u00e0m l\u01b0\u1ee3ng ammonia nh\u00e9 .<\/p>\n

Ammonia r\u1ea5t \u0111\u1ed9c h\u1ea1i v\u00ec khi hi\u1ec7n h\u1eedu \u1edf h\u00e0m l\u01b0\u1ee3ng cao, s\u1ebb l\u00e0m b\u1ecfng \u0111i c\u00e1c m\u00f4 t\u1ebf b\u00e0o mang c\u1ee7a c\u00e1, l\u00e0m ph\u1ecfng da v\u00e0 \u0111\u01b0\u1eddng ru\u1ed9t c\u1ee7a c\u00e1 . N\u1ebfu t\u00ecnh tr\u1ea1ng kh\u00f4ng \u0111\u01b0\u1ee3c kh\u00e1c ph\u1ee5c trong m\u1ed9t th\u1eddi gian ng\u1eafn, th\u00ec h\u1eadu qu\u1ea3 cu\u1ed1i c\u00f9ng s\u1ebb \u0111\u01b0a \u0111\u1ebfn c\u00e1i ch\u1ebft c\u1ee7a c\u00e1 ! \u0110\u00f3 l\u00e0 trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p b\u1ecb ng\u1ed9 \u0111\u1ed9c ammonia c\u1ea5p t\u00ednh . Th\u1ebf c\u00f2n c\u00e1c tr\u01b0\u1eddng h\u1ee3p ng\u1ed9 \u0111\u1ed9c ammonia trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p kinh ni\u00ean, khi h\u00e0m l\u01b0\u1ee3ng ammonia kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 gi\u1ebft c\u00e1 ngay, v\u00e0 kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c qua c\u00e1c test kit, nh\u01b0ng v\u1ea9n hi\u1ec7n h\u1eedu trong n\u01b0\u1edbc, th\u00ec sao? Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p h\u00e0m l\u01b0\u1ee3ng ammonia th\u01b0\u1eddng tr\u1ef1c hi\u1ec7n h\u1ee7u trong n\u01b0\u1edbc, kh\u00f4ng \u0111\u01b0\u1ee3c thanh t\u1ea9y k\u1ecbp th\u1eddi, th\u00ec c\u00e1c h\u1eadu qu\u1ea3 c\u1ee7a s\u1ef1 ng\u1ed9 \u0111\u1ed9c kinh ni\u00ean n\u00e0y l\u00e0 : c\u00e1 s\u1ebb ch\u1eadm l\u1edbn, c\u00e1 s\u1ebb m\u1ea5t m\u00e0u, v\u00e0 h\u1ec7 th\u1ed1ng mi\u1ec3n nhi\u1ec3m c\u1ee7a c\u00e1 r\u1ed3ng c\u00e1c b\u1ea1n s\u1ebb suy y\u1ebfu \u0111i v\u00e0 s\u1ebb t\u1ea1o gia t\u0103ng s\u1ef1 nhi\u1ec3m tr\u00f9ng c\u01a1 h\u1ed9i .<\/p>\n

Nh\u01b0 \u0111\u00e3 c\u00f3 v\u00e0i l\u1ea7n \u0111\u1ec1 c\u1eadp trong c\u00e1c b\u00e0i vi\u1ebft tr\u01b0\u1edbc \u0111\u00e2y, h\u1ea7u h\u1ebft nh\u1eefng test kit \u0111o ammonia s\u1ebb kh\u00f4ng \u0111\u1ee7 kh\u1ea3 n\u0103ng \u0111\u1ec3 \u0111o ch\u00ednh x\u00e1c \u0111\u01b0\u1ee3c h\u00e0m l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed9c t\u1ed1 ammonia . V\u00e0 th\u1eadt s\u1ef1 khi \u0111o, c\u00e1c test kit n\u00e0y kh\u00f4ng \u0111\u1ee7 tinh vi \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u01a1c th\u1eadt s\u1ef1 h\u00e0m l\u01b0\u1ee3ng c\u1ee7a ammonia , vi` th\u1ebf khi \u0111o, ch\u00fang ta th\u1eadt s\u1ef1 \u0111o s\u1ed1 l\u01b0\u1ee3ng t\u1ed5ng c\u1ed9ng c\u1ee7a ammonia, m\u00e0 trong \u0111\u00f3 c\u00f3 c\u1ea3 ammonia v\u00e0 ammonium . Trong n\u01b0\u1edbc, tu\u1ef3 theo \u0111\u00f4 pH, khi \u1edf \u0111\u1ed9 pH d\u01b0\u1edbi d\u1ea1ng acidic, th\u00ec ammonium hi\u1ec7n h\u1eedu (NH4+) v\u00e0 khi n\u01b0\u1edbc c\u00f3 \u0111\u1ed9 pH d\u01b0\u1edbi d\u1ea1ng ki\u1ec1m (pH cao), th\u00ec ammonia hi\u1ec7n h\u1eedu d\u01b0\u1edbi d\u1ea1ng (NH3-) ==> v\u00f4 c\u00f9ng \u0111\u1ed9c h\u1ea1i . T\u1ea5t c\u1ea3 nh\u1eefng h\u1eadu qu\u1ea3 x\u1ea5u \u0111\u00e3 \u0111\u1ec3 c\u1eadp b\u00ean tr\u00ean \u0111\u1ec1u x\u1ea3y ra d\u01b0\u1edbi d\u1ea1ng NH3- . Hy v\u1ecdng l\u00e0 c\u00e1c b\u1ea1n th\u1ea5y th\u1ea5y \u0111\u01b0\u1ee3c c\u00e1i l\u1ee3i khi gi\u1eef \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc trong b\u1ec3 h\u1ed3 c\u00e1 r\u1ed3ng \u1edf m\u1ee9c \u0111\u1ed9 acidic (ph= 5-6.5)
Tr\u1edf lai v\u1ea5n \u0111\u1ec1, v\u00ec th\u1ebf \u0111\u1ec3 th\u1eadt s\u1ef1 t\u00ednh \u0111\u01b0\u1ee3c m\u1ed9t c\u00e1ch kh\u00e1 ch\u00ednh x\u00e1c h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed9c t\u1ed1 ammonia trong n\u01b0\u1edbc khi b\u1ea1n \u0111o l\u00e0 bao nhi\u00eau, ch\u00fang ta c\u1ea7n \u0111i th\u00eam m\u1ed9t b\u01b0\u1edbc n\u1eefa nh\u01b0 sau :<\/p>\n

Nitrogen (N), v\u00e0 Hydrogen (H) c\u00f3 trong l\u01b0\u1ee3ng nguy\u00ean t\u1ee7 (atomic weight ) nh\u01b0 sau :
N=14; H=1 ===> NH3\/N = (14+3)\/14 = 1.21
Th\u00ed d\u1ee5 trong khi \u0111o h\u00e0m l\u01b0\u1ee3ng ammonia, x\u1eed d\u1ee5ng c\u00e1c test kit \u0111ang b\u00e0y b\u00e1n tr\u00ean th\u00ec tr\u01b0\u1eddng, c\u00f3 k\u1ebft qu\u1ea3 l\u00e0 2ppm hay 2mg\/L ==> l\u00fac \u1ea5y \u0111\u1ec3 c\u00f3 h\u00e0m l\u01b0\u1ee3ng ammonia ch\u00ednh x\u00e1c , c\u00e1c b\u1ea1n c\u1ea7n ph\u1ea3i nh\u00e2n (2mg\/L x 1.21) = 2. 42 mg\/L . \u0110\u00e2y l\u00e0 h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed9c t\u1ed1 ammonia hi\u1ec7n h\u1eedu trong n\u01b0\u1edbc v\u1edbi m\u1ed9t con s\u1ed1 kh\u00e1 ch\u00ednh x\u00e1c h\u01a1n ! Tuy nhi\u00ean, khi n\u01b0\u1edbc trong b\u1ec3 h\u1ed3 c\u00e1 r\u1ed3ng m\u00e0 c\u00f3 h\u00e0m l\u01b0\u1ee3ng ammonia nh\u01b0 th\u1ebf n\u00e0y, th\u00ec c\u00e1 b\u1ea1n \u0111\u00e3 v\u00e0 \u0111ang ng\u1ea5t ng\u01b0 r\u1ed3i, v\u00ec h\u00e0m l\u01b0\u1ee3ng ammonia trong n\u01b0\u1edbc lu\u00f4n \u0111\u01b0\u1ee3c khuy\u1ebfn c\u00e1o l\u00e0 ph\u1ea3i \u1edf m\u1ee9c 0mg\/L . Tr\u00ean th\u1ee9c t\u1ebf, khi c\u00e1c b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ed1 \u0111o ammonia (NH3-) l\u00e0 0mg\/L, th\u1eadt s\u1ef1 ra n\u00f3 kh\u00f4ng l\u00e0 zero, l\u00fd do l\u00e0 vi test k\u00edt kh\u00f4ng \u0111\u1ee7 tinh vi \u0111\u1ec3 \u0111o nh\u1eefng h\u00e0m l\u01b0\u1ee3ng qu\u00e1 th\u1ea5p .
Theo nh\u01b0 s\u1ef1 \u0111\u1ec1 ngh\u1ecb c\u1ee7a c\u00e1c c\u01a1 quan h\u1eedu tr\u00e1ch c\u1ee7a M\u1ef9, v\u00e0 Ch\u00e2u \u00c2u m\u00e0 \u0111i\u1ec3n h\u00ecnh l\u00e0 The European Inland Fishery Advisory Commission (EIFAC) , th\u00ec h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed9c t\u1ed1 ammonia m\u00e0 ch\u00fang ta c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c trong b\u1ea5t c\u1ee9 th\u1eddi \u0111i\u1ec3m n\u00e0o trong n\u01b0\u1edbc c\u1ee7a b\u1ec3 h\u1ed3 c\u00e1 r\u1ed3ng l\u00e0 0.0025mg\/L.<\/p>\n

Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp b\u00ean tr\u00ean, \u0111\u1ed9 pH v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a n\u01b0\u1edbc trong b\u1ec3 h\u1ed3 c\u00e1 r\u1ed3ng c\u00f3 s\u1ef1 li\u00ean quan m\u1eadt thi\u1ebft \u0111\u1ebfn hi\u1ec7n h\u1eedu c\u1ee7a ammonia trong n\u01b0\u1edbc .<\/p>\n

pH = 6.5 @ 28 \u0111\u1ed9 C ===> Ammonia = 0.34mg\/L
pH = 7.0 @ 28 \u0111\u1ed9 C ===> Ammonia = 0.62mg\/L
pH = 7.5 @ 28 \u0111\u1ed9 C ===> Ammonia = 1.94mg\/L<\/p>\n

\u0110\u1ec3 c\u00f3 th\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c h\u00e0m l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed9c t\u1ed1 ammonia trong n\u01b0\u1edbc tu\u1ef3 theo s\u1ed1 l\u01b0\u1ee3ng cho \u0103n h\u00e0ng ng\u00e0y cho m\u1ed5i con c\u00e1 r\u1ed3ng, ch\u00fang ta s\u1ebb t\u00ednh nh\u01b0 sau:
H\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i th\u1ee9c \u0103n c\u1ee7a c\u00e1 r\u1ed3ng , th\u00e0nh ph\u1ea7n ch\u1ea5t \u0111\u1ea1m l\u00e0 ch\u1ee7 y\u1ebfu, v\u00ec trong c\u00e1c lo\u1ea1i th\u1ee9c \u0103n \u0111\u01b0\u1ee3c cho c\u00e1 r\u1ed3ng \u0103n, r\u1ea5t \u00edt c\u00e1c ch\u1ea5t tinh b\u1ed9t v\u00e0 ch\u1ea5t b\u00e9o , v\u00e0 ch\u1ea5t \u0111\u1ea1m (protein) s\u1ebb c\u00f3 s\u1ed1 % ~ 48% .<\/p>\n

\u0110\u1ec3 \u0111\u01a1n gi\u1ea3n ho\u00e1, ch\u00fang ta s\u1ebb d\u00f9ng \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc trong b\u1ec3 h\u1ed3 c\u00e1 r\u1ed3ng c\u1ee7a c\u00e1c b\u1ea1n l\u00e0 7.5 vi \u0111\u00e2y l\u00e0 \u0111\u1ed9 pH th\u00f4ng th\u01b0\u1eddng m\u00e0 ch\u00fang ta th\u01b0\u1eddng th\u1ea5y cho h\u1ea7u h\u1ebft cac b\u1ec3 h\u1ed3 c\u00e1 r\u1ed3ng . Khi c\u00f3 \u0111\u1ed9 pH =7.5, th\u00ec h\u00e0m l\u01b0\u1eddng c\u1ee7a ammonia trong n\u01b0\u1edbc ~ 2% .<\/p>\n

Theo \u01b0\u1edbc t\u00ednh c\u1ee7a \u00f4ng Michael Timmons, t\u00e1c gi\u1ea3 c\u1ee7a cu\u1ed1n s\u00e1ch Recirculating Aquaculture System (L\u01b0u L\u01b0\u1ee3ng D\u00f2ng N\u01b0\u1edbc Ch\u1ea3y Cho C\u00e1c H\u1ec7 Th\u1ed1ng Nu\u00f4i C\u00e1 C\u1ea3nh ), th\u00ec c\u00f3 kho\u1ea3ng 10% c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n ch\u1ea5t \u0111\u1ea1m sau khi \u0111\u01b0\u1ee3c ti\u00eau ho\u00e1, s\u1ebb th\u1ea3i ng\u01b0\u1ee3c ra trong n\u01b0\u1edbc d\u01b0\u1edbi d\u1ea1ng \u0111\u1ed9c t\u1ed1 ammonia .<\/p>\n

V\u00ec th\u1ebf, \u0111\u1ec3 \u01b0\u1edbc t\u00ednh l\u01b0u l\u01b0\u1ee3ng d\u00f2ng n\u01b0\u1edbc ch\u1ea3y trong h\u1ed3 c\u00e1 r\u1ed3ng, v\u1edbi kh\u1ea9u ph\u1ea7n \u0103n cho m\u1ed5i con c\u00e1 r\u1ed3ng kho\u1ea3ng 250g\/ng\u00e0y c\u00f3 ph\u1ea7n ch\u1ea5t \u0111\u1ea1m \u1edf m\u1ee9c 48% ===> l\u01b0\u1ee3ng ammonia s\u1ebb \u0111\u01b0\u1ee3c th\u1ea3i ng\u01b0\u1ee3c ra n\u01b0\u1edbc l\u00e0 4.8%
D\u1ef1a tr\u00ean nh\u1eefng d\u1eef ki\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00eau ra, ta c\u00f3 th\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c h\u00e0m l\u01b0\u1ee3ng c\u1ee7a ammonia \u0111\u01b0\u1ee3c th\u1ea3i ra n\u01b0\u1edbc trong m\u1ed9t ng\u00e0y nh\u01b0 sau :
[4.8% x (2\/100)]= 0.096% Ammonia trong n\u01b0\u1edbc
N\u1ebfu \u01b0\u1edbc l\u01b0\u1ee3ng kh\u1ea9u ph\u1ea7n \u0103n trong m\u1ed9t ng\u00e0y c\u1ee7a c\u00e1 r\u1ed3ng l\u00e0 250g ===>
(0.096\/100)x (250g)= 0.240g hay 240mg Ammonia\/ng\u00e0y s\u1ebb \u0111\u01b0\u1ee3c th\u1ea3i ra n\u01b0\u1edbc qua s\u1ef1 b\u00e0i ti\u1ebft c\u1ee7a c\u00e1 r\u1ed3ng .<\/p>\n

B\u00e2y gi\u1edd sau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c kh\u00e1 ch\u00ednh x\u00e1c h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed9c t\u1ed1 ammonia \u0111\u01b0\u1ee3c th\u1ea3i ra trong ng\u00e0y theo kh\u1ea9u ph\u1ea7n \u0103n c\u1ee7a c\u00e1, ch\u00fang ta c\u1ea7n l\u01b0u l\u01b0\u1ee3ng d\u00f2ng n\u01b0\u1edbc ch\u1ea3y nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 co th\u1ec3 gi\u1eef h\u00e0m l\u01b0\u1ee3ng ammonia \u1edf d\u01b0\u1edbi m\u1ee9c 0.0025mg\/L \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 ngh\u1ecb b\u1edfi c\u01a1 quan EIFAC .<\/p>\n

L\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ea7n thi\u1ebft ph\u1ea3i ch\u1ea3y qua v\u1eadt li\u1ec7u l\u1ecdc \u0111\u1ec3 c\u00f3 th\u1ec3 thanh t\u1ea9y \u0111\u1ed9c t\u1ed1 ammonia \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 sau :<\/p>\n

N\u00d4NG \u0110\u1ed8 = (H\u00c0M L\u01af\u1ee2NG \u0110\u1ed8C T\u1ed0 AMMONIA TH\u1ea2I RA TRONG NG\u00c0Y \/ LU\u01af L\u01af\u1ee2NG N\u01af\u1edaC CH\u1ea2Y)
===> LU\u01af L\u01af\u01a0NG N\u01af\u1edaC = H\u00c0M L\u01af\u1ee2NG \u0110\u1ed8C T\u1ed0 AMMONIA TH\u1ea2I TRONG NG\u00c0Y \/ N\u1ed2NG \u0110\u1ed8 )<\/p>\n

===> LU\u01af L\u01af\u1ee2NG N\u01af\u1edaC C\u1ea6N THI\u1ebeT = (240mg\/ng\u00e0y \/ 0.0025mg\/L) = 96,000 L\u00edt N\u01b0\u1edbc \/Ng\u00e0y<\/p>\n

===> b\u1ea1n c\u1ea7n c\u00f3 m\u00e1y b\u01a1m c\u00f3 hi\u1ec7u n\u0103ng b\u01a1m v\u00e0 v\u1eadn chuy\u1ec3n n\u01b0\u1edbc v\u1edbi c\u00f4ng su\u1ea5t 4,000 l\u00edt\/gi\u1edd hay 66 l\u00edt n\u01b0\u1edbc\/ ph\u00fat<\/p>\n

Hy v\u1ecdng l\u00e0 qua b\u00e0i vi\u1ebft, c\u00e1c b\u1ea1n s\u1ebb th\u00f4ng hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 t\u01b0\u01a1ng quan m\u1eadt thi\u1ebft gi\u1eefa l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u1ea3y c\u1ea7n thi\u1ebft t\u1ed1i thi\u1ec3u \u0111\u1ec3 thanh t\u1ea9y ammonia m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c, ch\u1ee9 kh\u00f4ng c\u00f2n ph\u1ecfng \u0111o\u00e1n nh\u01b0 tr\u01b0\u1edbc n\u1eefa . V\u00e0 \u0111\u1ed3ng th\u1eddi c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 t\u00ednh ch\u00ednh x\u00e1c v\u1edbi nh\u1eefng con s\u1ed1 c\u1ee5 th\u1ec3 v\u1ec1 h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed9c t\u1ed1 ammonia \u0111\u01b0\u1ee3c th\u1ea3i ra trong n\u01b0\u1edbc d\u1ef1a tr\u00ean kh\u1ea9u ph\u1ea7n \u0103n c\u1ee7a c\u00e1<\/p>\n

(ngu\u1ed3n: Moneyless www.arowana.com.vn)<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Khi n\u00f3i \u0111\u1ebfn ch\u01a1i c\u00e1 r\u1ed3ng, th\u00ec ph\u1ea3i n\u00f3i \u0111\u1ebfn ch\u01a1i n\u01b0\u1edbc, m\u00e0 khi ch\u01a1i n\u01b0\u1edbc, th\u00ec chuy\u1ec7n \u0111\u1ea7u ti\u00ean ch\u00fang ta c\u1ea7n ph\u1ea3i quan t\u00e2m \u0111\u1ebfn l\u00e0 qu\u1ea3n l\u00fd h\u00e0m l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed9c t\u1ed1 ammonia t\u00edch t\u1ee5 trong n\u01b0\u1edbc . \u0110\u1ed9c t\u1ed1 ammonia l\u00e0 lo\u1ea1i \u0111\u1ed9c t\u1ed1 c\u00f3 t\u00e1c h\u1ea1i m\u1ea1nh nh\u1ea5t \u0111\u1ed1i v\u1edbi […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-131","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/posts\/131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/comments?post=131"}],"version-history":[{"count":0,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/posts\/131\/revisions"}],"wp:attachment":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/media?parent=131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/categories?post=131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/tags?post=131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}