{"id":1766,"date":"2023-10-04T11:22:24","date_gmt":"2023-10-04T04:22:24","guid":{"rendered":"https:\/\/enviclean.com.vn\/?p=1766"},"modified":"2023-10-26T19:39:54","modified_gmt":"2023-10-26T12:39:54","slug":"men-vi-sinh-hieu-khi-xu-ly-nuoc-thai-thuy-san","status":"publish","type":"post","link":"https:\/\/enviclean.com.vn\/en\/men-vi-sinh-hieu-khi-xu-ly-nuoc-thai-thuy-san\/","title":{"rendered":"AEROBASTIC BIOLOGICAL Yeast FOR TREATMENT OF AQUACULTURE WASTEWATER"},"content":{"rendered":"

Ng\u00e0nh th\u1ee7y s\u1ea3n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ngu\u1ed3n cung c\u1ea5p th\u1ef1c ph\u1ea9m v\u00e0 thu h\u00fat s\u1ef1 quan t\u00e2m tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. Tuy nhi\u00ean, qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t th\u1ee7y s\u1ea3n c\u0169ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c sinh ra l\u01b0\u1ee3ng l\u1edbn n\u01b0\u1edbc th\u1ea3i, g\u00e2y \u00f4 nhi\u1ec5m. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng, men vi sinh hi\u1ebfu kh\u00ed \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ch\u1ebf ph\u1ea9m sinh h\u1ecdc x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i th\u1ee7y s\u1ea3n hi\u1ec7u qu\u1ea3. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u v\u1ec1 c\u00f4ng d\u1ee5ng c\u1ee7a men vi sinh hi\u1ebfu kh\u00ed trong vi\u1ec7c x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i th\u1ee7y s\u1ea3n.<\/p>\n

T\u1ed4NG QUAN V\u1ec0 N\u01af\u1edaC THA\u0309I CH\u1ebe BI\u1ebeN TH\u1ee6Y H\u1ea2I S\u1ea2N:<\/span><\/h2>\n

Cu\u0300ng v\u01a1\u0301i s\u01b0\u0323 pha\u0301t tri\u00ea\u0309n theo t\u01b0\u0300ng n\u0103m thi\u0300 nga\u0300nh ch\u00ea\u0301 bi\u00ea\u0301n thu\u0309y ha\u0309i sa\u0309n cu\u0303ng \u0111\u01b0a va\u0300o m\u00f4i tr\u01b0\u01a1\u0300ng m\u00f4\u0323t l\u01b0\u01a1\u0323ng n\u01b0\u01a1\u0301c tha\u0309i kha\u0301 l\u01a1\u0301n, g\u00e2y \u00f4 nhi\u00ea\u0303m nghi\u00eam tro\u0323ng ngu\u00f4\u0300n n\u01b0\u01a1\u0301c.<\/p>\n

Aquatic wastewater is generated during the production and processing of raw materials, impregnating additives, pre-processing stages, boiling, steaming, cleaning tools, factories, etc. Seafood processing factories and enterprises products (white leg shrimp, tiger shrimp, pangasius, basa fish, sea fish, etc.) or canned food production, fresh food production often processes dozens of tons of seafood every day, creating a source of aquatic wastewater. Huge assets need to be handled.<\/p>\n

N\u01b0\u01a1\u0301c tha\u0309i th\u1ee7y s\u1ea3n ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1 ngu\u1ed3n g\u1ed1c \u0111\u1ed9ng v\u1eadt c\u00f3 th\u00e0nh ph\u1ea7n ch\u1ee7 y\u1ebfu l\u00e0 protein v\u00e0 c\u00e1c ch\u1ea5t b\u00e9o kh\u00f3 ph\u00e2n h\u1ee7y.<\/p>\n

Ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1 khi ph\u00e2n h\u1ee7y trong n\u01b0\u1edbc s\u1ebd l\u00e0m suy gi\u1ea3m n\u1ed3ng \u0111\u1ed9 oxy h\u00f2a tan trong n\u01b0\u1edbc qua qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y sinh h\u1ecdc c\u1ee7a h\u1ec7 vi sinh v\u1eadt. N\u1ed3ng \u0111\u1ed9 oxy h\u00f2a tan khi gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi 50% b\u00e3o h\u00f2a g\u00e2y \u1ea3nh h\u01b0\u1edfng t\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a t\u00f4m, c\u00e1. Oxy h\u00f2a tan gi\u1ea3m con g\u00e2y t\u00e1c \u0111\u1ed9ng l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng t\u1ef1 l\u00e0m s\u1ea1ch c\u1ee7a ngu\u1ed3n n\u01b0\u1edbc.<\/p>\n

C\u00e1c ch\u1ea5t th\u1ea3i r\u1eafn l\u01a1 l\u1eedng trong n\u01b0\u1edbc th\u1ea3i th\u1ee7y s\u1ea3n g\u00e2y t\u00ecnh tr\u1ea1ng \u0111\u1ee5c n\u01b0\u1edbc. Ch\u1ea5t dinh d\u01b0\u1ee1ng d\u01b0 th\u1eeba trong n\u01b0\u1edbc th\u1ea3i th\u1ee7y s\u1ea3n, ch\u1ee9a n\u1ed3ng \u0111\u1ed9 Nito, photpho cao g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5m rong v\u00e0 t\u0103ng s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a t\u1ea3o v\u00e0 r\u00eau t\u1ea3o.<\/p>\n

Ngo\u00e0i ra, trong n\u01b0\u1edbc th\u1ea3i th\u1ee7y s\u1ea3n<\/p>\n

c\u00f2n ch\u1ee9a c\u00e1c vi khu\u1ea9n g\u00e2y b\u1ec7nh, tr\u1ee9ng giun s\u00e1n,\u2026 l\u00e0 nh\u00e2n t\u1ed1 g\u00e2y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi. G\u00e2y ra c\u00e1c b\u1ec7nh ti\u00eau ch\u1ea3y, nhi\u1ec3m khu\u1ea9n,\u2026<\/p>\n

\"men<\/p>\n

QUY TR\u00ccNH X\u1eec L\u00dd N\u01af\u1edaC<\/span>\u00a0TH\u1ea2I TH\u1ee6Y S\u1ea2N V\u00c0 S\u1ef0 C\u1ed0 T\u1ea0I B\u1ec2 HI\u1ebeU KH\u00cd.<\/span><\/h2>\n

Quy tr\u00ecnh x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i th\u1ee7y s\u1ea3n bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau:<\/h3>\n
    \n
  1. X\u1eed l\u00fd c\u01a1 h\u1ecdc: Lo\u1ea1i b\u1ecf ch\u1ea5t th\u1ea3i r\u1eafn v\u00e0 ch\u1ea5t th\u1ea3i r\u1eafn l\u01a1 l\u1eedng trong n\u01b0\u1edbc.<\/li>\n
  2. X\u1eed l\u00fd h\u00f3a l\u00fd: \u0110i\u1ec1u h\u00f2a pH, ph\u00e2n h\u1ee7y c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 trong b\u1ec3 hi\u1ebfu kh\u00ed v\u00e0 k\u1ecb kh\u00ed.<\/li>\n
  3. X\u1eed l\u00fd b\u1eb1ng b\u1ec3 k\u1ef5 kh\u00ed UASB: Gi\u1ea3m COD, BOD trong n\u01b0\u1edbc.<\/li>\n
  4. X\u1eed l\u00fd b\u1eb1ng b\u1ec3 hi\u1ebfu kh\u00ed: X\u1eed l\u00fd ph\u00e2n h\u1ee7y ch\u1ea5t th\u1ea3i, gi\u1ea3m amoni v\u00e0 nit\u01a1 trong n\u01b0\u1edbc th\u1ea3i v\u1ec1 ng\u01b0\u1ee1ng ti\u00eau chu\u1ea9n.<\/li>\n<\/ol>\n

    S\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p t\u1ea1i b\u1ec3 hi\u1ebfu kh\u00ed<\/h3>\n

    \"n\u01b0\u1edbc<\/p>\n

    B\u1ec3 hi\u1ebfu kh\u00ed (aerotank)<\/strong> l\u00e0 lo\u1ea1i b\u1ec3 c\u00f3 thi\u1ebft k\u1ebf m\u1edf, c\u00f3 ngu\u1ed3n d\u1eabn n\u01b0\u1edbc th\u1ea3i v\u00e0o b\u1ec3 v\u00e0 h\u1ec7 th\u1ed1ng s\u1ee5c kh\u00ed cung c\u1ea5p oxi \u0111\u1ec3 h\u1ec7 vi sinh v\u1eadt x\u1eed l\u00fd, ph\u00e2n h\u1ee7y ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1 trong n\u01b0\u1edbc th\u1ea3i.<\/p>\n

    Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd qua b\u1ec3 hi\u1ebfu kh\u00ed c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf 97,56% ch\u1ea5t r\u1eafn l\u01a1 l\u1eedng, gi\u1ea3m m\u00f9i h\u00f4i, x\u1eed l\u00fd nito, amoni, photpho c\u00f9ng c\u00e1c vi khu\u1ea9n g\u00e2y h\u1ea1i, c\u1ea3i t\u1ea1o ngu\u1ed3n n\u01b0\u1edbc an to\u00e0n v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/p>\n

    Trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i t\u1ea1i b\u1ec3 hi\u1ebfu khi th\u01b0\u1eddng g\u1eb7p nh\u1eefng v\u1ea5n \u0111\u1ec1 s\u1ef1 c\u1ed1 g\u00e2y \u1ea3nh h\u01b0\u1edfng t\u1edbi t\u1ed1c \u0111\u1ed9 ph\u00e2n h\u1ee7y ch\u1ea5t th\u1ea3i, g\u00e2y tr\u00ec tr\u1ec7. C\u00e1c s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p ph\u1ea3i bao g\u1ed3m:<\/p>\n