{"id":4788,"date":"2022-10-27T14:10:07","date_gmt":"2022-10-27T07:10:07","guid":{"rendered":"https:\/\/ahrd.vn\/?p=4788"},"modified":"2022-10-27T14:10:07","modified_gmt":"2022-10-27T07:10:07","slug":"cong-nghe-dien-hoa-xu-ly-hieu-qua-nguon-nuoc-thai-trong-nuoi-trong-thuy-san","status":"publish","type":"post","link":"https:\/\/ahrd.vn\/?p=4788","title":{"rendered":"C\u00d4NG NGH\u1ec6 \u0110I\u1ec6N H\u00d3A – X\u1eec L\u00dd HI\u1ec6U QU\u1ea2 NGU\u1ed2N N\u01af\u1edaC TH\u1ea2I TRONG NU\u00d4I TR\u1ed2NG TH\u1ee6Y S\u1ea2N"},"content":{"rendered":"

C\u00d4NG NGH\u1ec6 \u0110I\u1ec6N H\u00d3A – X\u1eec L\u00dd HI\u1ec6U QU\u1ea2 NGU\u1ed2N N\u01af\u1edaC TH\u1ea2I TRONG NU\u00d4I TR\u1ed2NG TH\u1ee6Y S\u1ea2N<\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 T\u1ea1i Vi\u1ec7t Nam, b\u00ean c\u1ea1nh c\u00e1c h\u00ecnh th\u1ee9c nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n trong l\u1ed3ng b\u00e8, ch\u1eafn s\u00e1o, \u0111\u0103ng qu\u1ea7ng th\u00ec h\u00ecnh th\u1ee9c nu\u00f4i tr\u1ed3ng trong c\u00e1c ao h\u1ed3 h\u1ebft s\u1ee9c ph\u1ed5 bi\u1ebfn v\u00e0 ph\u00e1t tri\u1ec3n \u1edf nhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng tr\u00ean c\u1ea3 n\u01b0\u1edbc. \u0110\u1ed1i t\u01b0\u1ee3ng nu\u00f4i ch\u1ee7 l\u1ef1c hi\u1ec7n nay l\u00e0 c\u00e1c lo\u1ea1i c\u00e1 n\u01b0\u1edbc ng\u1ecdt, t\u00f4m c\u00e0ng xanh, t\u00f4m s\u00fa… N\u01b0\u1edbc th\u1ea3i nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n n\u00f3i chung v\u00e0 n\u01b0\u1edbc th\u1ea3i nu\u00f4i c\u00e1, t\u00f4m t\u1ea1i c\u00e1c ao h\u1ed3 n\u00f3i ri\u00eang th\u01b0\u1eddng c\u00f3 n\u1ed3ng \u0111\u1ed9 COD, BOD, N v\u00e0 vi sinh v\u1eadt g\u00e2y h\u1ea1i cao do ngu\u1ed3n h\u1eefu c\u01a1 th\u1ee9c \u0103n d\u01b0 th\u1eeba, c\u00e1c ch\u1ebf ph\u1ea9m sinh h\u1ecdc s\u1eed d\u1ee5ng trong ch\u0103n nu\u00f4i v\u00e0 n\u01b0\u1edbc th\u1ea3i t\u1eeb ch\u00ednh v\u1eadt nu\u00f4i.<\/p>\n

T\u00ednh ch\u1ea5t c\u1ee7a n\u01b0\u1edbc th\u1ea3i nu\u00f4i c\u00e1: <\/strong>N\u01b0\u1edbc th\u1ea3 ao nu\u00f4i c\u00e1 g\u00e2y \u00f4 nhi\u1ec5m ch\u1ee7 y\u1ebfu do ngu\u1ed3n h\u1eefu c\u01a1 ch\u1ee9a trong n\u01b0\u1edbc d\u01b0 th\u1eeba t\u1eeb th\u1ee9c \u0103n b\u1edfi th\u1ef1c t\u1ebf ch\u1ec9 kho\u1ea3ng 17% th\u1ee9c \u0111\u01b0\u1ee3c c\u00e1 h\u1ea5p th\u1ee5 v\u00e0 ph\u1ea7n c\u00f2n l\u1ea1i (kho\u1ea3ng 83%) h\u00f2a l\u1eabn trong m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc tr\u1edf th\u00e0nh c\u00e1c ch\u1ea5t h\u01b0u c\u01a1 ph\u00e2n h\u1ee7y. R\u1ed3i t\u1eeb ph\u00e2n v\u00e0 c\u00e1c r\u00e1c th\u1ea3i kh\u00e1c \u0111\u1ecdng l\u1ea1i d\u01b0\u1edbi \u0111\u00e1y ao nu\u00f4i, t\u1eeb \u0111\u00f3 t\u1ea1o n\u00ean COD, BOD, N v\u00e0 c\u00e1c VSV c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y b\u1ec7nh cao. N\u1ebfu ngu\u1ed3n n\u01b0\u1edbc th\u1ea3i n\u00e0y th\u1ea3i tr\u1ef1c ti\u1ebfp ra m\u00f4i tr\u01b0\u1eddng s\u1ebd g\u00e2y ra ph\u0169 nh\u01b0\u1ee1ng h\u00f3a ngu\u1ed3n ti\u1ebfp nh\u1eadn hay hi\u1ec7n t\u01b0\u1ee3ng t\u1ea3o n\u1edf hoa. Ngo\u00e0i ra, trong n\u01b0\u1edbc th\u1ea3i c\u00f2n ch\u1ee9a l\u01b0\u1ee3ng d\u01b0 h\u00f3a ch\u1ea5t, kh\u00e1ng sinh d\u00f9ng cho c\u00e1 khi x\u1eed l\u00fd ph\u00f2ng v\u00e0 tr\u1ecb b\u1ec7nh.<\/p>\n

T\u00ednh ch\u1ea5t c\u1ee7a n\u01b0\u1edbc th\u1ea3i nu\u00f4i t\u00f4m:<\/strong> N\u01b0\u1edbc th\u1ea3i c\u1ee7a ng\u00e0nh nu\u00f4i t\u00f4m ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng l\u1edbn Nit\u01a1, Photpho v\u00e0 c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng kh\u00e1c g\u00e2y n\u00ean s\u1ef1 si\u00eau dinh d\u01b0\u1ee1ng, do \u0111\u00f3 k\u00e9o theo s\u1ef1 t\u0103ng s\u1ee9c s\u1ea3n xu\u1ea5t ban \u0111\u1ea7u v\u00e0 n\u1edf r\u1ed9 c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i vi khu\u1ea9n g\u00e2y b\u1ec7nh. S\u1ef1 c\u00f3 m\u1eb7t c\u1ee7a c\u00e1c h\u1ee3p ch\u1ea5t carbonic v\u00e0 c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 s\u1ebd l\u00e0m gi\u1ea3m oxy h\u00f2a tan v\u00e0 t\u0103ng BOD, COD, sulfit hydrogen, ammoniac v\u00e0 h\u00e0m l\u01b0\u1ee3ng methan trong v\u1ef1c n\u01b0\u1edbc t\u1ef1 nhi\u00ean. M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 kh\u00e1c do vi\u1ec7c nu\u00f4i t\u00f4m g\u00e2y ra \u0111\u00f3 l\u00e0 s\u1ef1 l\u00e0m l\u1eafng \u0111\u1ecdng d\u01b0\u1edbi \u0111\u00e1y, \u0111\u00e2y ch\u00ednh l\u00e0 ngu\u1ed3n nguy h\u1ea1i cho t\u00f4m v\u00e0 ho\u1ea1t \u0111\u1ed9ng nu\u00f4i t\u00f4m. L\u1edbp b\u00f9n n\u00e0y r\u1ea5t \u0111\u1ed9c h\u1ea1i, thi\u1ebfu oxy, ch\u1ee9a nhi\u1ec1u ch\u1ea5t g\u00e2y h\u1ea1i nh\u01b0 ammoniacx, sunfuric,…<\/p>\n

Gi\u1ea3i ph\u00e1p x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ao h\u1ed3 nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n v\u1edbi c\u00f4ng ngh\u1ec7 ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c \u0111i\u1ec7n h\u00f3a<\/strong><\/p>\n

M\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a c\u00f4ng ngh\u1ec7 ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c \u0111i\u1ec7n h\u00f3a:<\/strong><\/p>\n

– X\u1eed l\u00fd n\u01b0\u1edbc tr\u1ef1c ti\u1ebfp trong ao, h\u1ed3 nu\u00f4i m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng t\u1edbi c\u00e1 t\u00f4m.<\/p>\n

– N\u01b0\u1edbc tr\u00f4ng ao, h\u1ed3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd li\u00ean t\u1ee5c qua thi\u1ebft b\u1ecb ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c \u0111i\u1ec7n ph\u00e2n v\u00e0 t\u00e1i s\u1eed d\u1ee5ng ngay l\u1eadp t\u1ee9c, ti\u1ebft ki\u1ec7m n\u01b0\u1edbc v\u00e0 chi ph\u00ed thay n\u01b0\u1edbc \u0111\u1ecbnh k\u1ef3.<\/p>\n

– V\u1eadn h\u00e0nh thi\u1ebft b\u1ecb \u0111\u01a1n gi\u1ea3n, ch\u1ec9 c\u1ea7n \u0111\u1ecbnh k\u1ef3 l\u00e0m s\u1ea1ch.<\/p>\n

– Kh\u1eed \u0111\u1ed9c c\u00e1c ch\u1ea5t th\u1ea3i c\u00f3 h\u1ea1i nh\u01b0 Amoniac v\u00e0 Nitrite \u0111\u1ec3 gi\u00fap th\u1ee7y sinh s\u1ed1ng trong m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc s\u1ea1ch v\u00e0 kh\u1ecfe m\u1ea1nh.<\/p>\n

– Ph\u00e1 v\u1ee1 protein v\u00e0 ch\u1ea5t dinh d\u01b0\u1ee1ng, l\u00e0m gi\u1ea3m m\u1ee9c ch\u1ea5t h\u1eefu c\u01a1 t\u1ed5ng th\u1ec3 trong n\u01b0\u1edbc.<\/p>\n

– Gi\u00fap gi\u1ea3m th\u1eddi gian kh\u1edfi \u0111\u1ed9ng b\u1ec3\/ao (Nitrogen cycle) v\u00e0 ng\u0103n ng\u1eeba h\u1ed9i ch\u1ee9ng b\u1ec3\/ao m\u1edbi.<\/p>\n

– Gi\u1ea3m thi\u1ec3u m\u00f9i kh\u00f3 ch\u1ecbu t\u1eeb n\u01b0\u1edbc ao.<\/p>\n

– C\u1ea3i thi\u1ec7n \u0111\u1ed9 trong c\u1ee7a n\u01b0\u1edbc.<\/p>\n

– H\u1ed7 tr\u1ee3 t\u0103ng tu\u1ed5i th\u1ecd, m\u1eadt \u0111\u1ed9 v\u00e0 c\u00e2n n\u1eb7ng cho t\u00f4m, c\u00e1 nu\u00f4i trong b\u1ec3, qua \u0111\u00f3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 kinh t\u1ebf trong nu\u1ed5i tr\u1ed3ng th\u1ee7y s\u1ea3n.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 1:<\/strong> H\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 x\u00fac t\u00e1c \u0111i\u1ec7n h\u00f3a.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng ngh\u1ec7:<\/strong><\/p>\n

C\u00f4ng ngh\u1ec7 x\u00fac t\u00e1c \u0111i\u1ec7n h\u00f3a s\u1eed d\u1ee5ng cho n\u01b0\u1edbc th\u1ea3i nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n ch\u1ee9a n\u1ed3ng \u0111\u1ed9 mu\u1ed1i, ch\u1ea5t h\u1eefu c\u01a1, c\u00e1c h\u1ee3p ch\u1ea5t l\u01b0u hu\u1ef3nh, c\u00e1c ion kim lo\u1ea1i n\u1eb7ng, axit, ki\u1ec1m cao,… C\u00f4ng ngh\u1ec7 n\u00e0y s\u1eed d\u1ee5ng ph\u1ea3n \u1ee9ng oxy h\u00f3a c\u1ee7a nh\u00f3m g\u1ed1c t\u1ef1 doHydroxyl (OH) v\u1edbi ph\u1ea3n \u1ee9ng r\u1ea5t m\u1ea1nh trong th\u1eddi gian ng\u1eafn. H\u1ea7u h\u1ebft ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1 \u0111i qua h\u1ec7 th\u1ed1ng nhanh ch\u00f3ng \u0111\u01b0\u1ee3c chia th\u00e0nh Cacbon dioxit, n\u01b0\u1edbc v\u00e0 c\u00e1c ion h\u1eefu c\u01a1 v\u00e0 v\u00f4 c\u01a1 nh\u1ecf h\u01a1n th\u00f4ng qua qu\u00e1 tr\u00ecnh oxy h\u00f3a.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 2:<\/strong> M\u00f4 t\u1ea3 x\u00fac t\u00e1c \u0111i\u1ec7n h\u00f3a<\/p>\n

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

https:\/\/ngoenvironment.com\/vn\/Xu-ly-nuoc-thai-tec59-XU-LY-NUOC-THAI-NUOI-TRONG-THUY-SAN-BANG-CONG-NGHE-DIEN-HOA-MOI-d106.html<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00d4NG NGH\u1ec6 \u0110I\u1ec6N H\u00d3A – X\u1eec L\u00dd HI\u1ec6U QU\u1ea2 NGU\u1ed2N N\u01af\u1edaC TH\u1ea2I TRONG NU\u00d4I TR\u1ed2NG TH\u1ee6Y S\u1ea2N \u00a0 \u00a0 \u00a0 \u00a0 T\u1ea1i Vi\u1ec7t Nam, b\u00ean c\u1ea1nh c\u00e1c h\u00ecnh th\u1ee9c nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n trong l\u1ed3ng b\u00e8, ch\u1eafn s\u00e1o, \u0111\u0103ng qu\u1ea7ng th\u00ec h\u00ecnh th\u1ee9c nu\u00f4i tr\u1ed3ng trong c\u00e1c ao h\u1ed3 h\u1ebft s\u1ee9c ph\u1ed5 bi\u1ebfn v\u00e0 ph\u00e1t […]\n","protected":false},"author":50,"featured_media":4790,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[236],"tags":[],"_links":{"self":[{"href":"https:\/\/ahrd.vn\/index.php?rest_route=\/wp\/v2\/posts\/4788"}],"collection":[{"href":"https:\/\/ahrd.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ahrd.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ahrd.vn\/index.php?rest_route=\/wp\/v2\/users\/50"}],"replies":[{"embeddable":true,"href":"https:\/\/ahrd.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4788"}],"version-history":[{"count":1,"href":"https:\/\/ahrd.vn\/index.php?rest_route=\/wp\/v2\/posts\/4788\/revisions"}],"predecessor-version":[{"id":4792,"href":"https:\/\/ahrd.vn\/index.php?rest_route=\/wp\/v2\/posts\/4788\/revisions\/4792"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ahrd.vn\/index.php?rest_route=\/wp\/v2\/media\/4790"}],"wp:attachment":[{"href":"https:\/\/ahrd.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ahrd.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ahrd.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}