{"id":866,"date":"2026-10-07T09:02:48","date_gmt":"2026-10-07T01:02:48","guid":{"rendered":"https:\/\/anchor-filter.com\/dioxin-removal-waste-incinerator\/"},"modified":"2026-10-10T13:07:34","modified_gmt":"2026-10-10T05:07:34","slug":"lo-dot-chat-thai-loai-bo-dioxin","status":"publish","type":"post","link":"https:\/\/anchor-filter.com\/vi\/dioxin-removal-waste-incinerator\/","title":{"rendered":"Lo\u1ea1i b\u1ecf Dioxin kh\u1ecfi Kh\u00ed th\u1ea3i L\u00f2 \u0111\u1ed1t R\u00e1c b\u1eb1ng B\u1ed9 l\u1ecdc X\u00fac t\u00e1c SCO"},"content":{"rendered":"

Dioxin l\u00e0 ch\u1ea5t \u00f4 nhi\u1ec5m \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd ch\u1eb7t ch\u1ebd nh\u1ea5t tho\u00e1t ra t\u1eeb l\u00f2 \u0111\u1ed1t ch\u1ea5t th\u1ea3i \u0111\u00f4 th\u1ecb ho\u1eb7c ch\u1ea5t th\u1ea3i nguy h\u1ea1i, v\u00e0 gi\u1ea3i ph\u00e1p th\u00f4ng th\u01b0\u1eddng \u2014 phun than ho\u1ea1t t\u00ednh \u2014 kh\u00f4ng ph\u00e1 h\u1ee7y b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec. N\u00f3 ch\u1ec9 chuy\u1ec3n ph\u00e2n t\u1eed t\u1eeb pha kh\u00ed sang c\u1eb7n than \u0111\u00e3 qua s\u1eed d\u1ee5ng, m\u00e0 v\u1eabn ph\u1ea3i \u0111\u01b0\u1ee3c ch\u00f4n l\u1ea5p ho\u1eb7c x\u1eed l\u00fd nhi\u1ec7t \u1edf n\u01a1i kh\u00e1c. M\u1ed9t b\u1ed9 l\u1ecdc lo\u1ea1i b\u1ecf dioxin<\/strong> \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean c\u01a1 s\u1edf oxy h\u00f3a x\u00fac t\u00e1c ch\u1ecdn l\u1ecdc (SCO) \u0111i theo h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i: c\u00e1c ph\u00e2n t\u1eed PCDD\/PCDF b\u1ecb oxy h\u00f3a th\u00e0nh CO\u2082, H\u2082O v\u00e0 HCl khi ch\u00fang \u0111i qua th\u00e0nh mang x\u00fac t\u00e1c c\u1ee7a ph\u1ea7n t\u1eed l\u1ecdc s\u1ee3i g\u1ed1m, \u0111\u1ed3ng th\u1eddi ch\u00ednh ph\u1ea7n t\u1eed \u0111\u00f3 \u0111ang lo\u1ea1i b\u1ecf b\u1ee5i, kh\u00ed axit v\u00e0 NOx trong c\u00f9ng m\u1ed9t thi\u1ebft b\u1ecb. D\u01b0\u1edbi \u0111\u00e2y ch\u00fang t\u00f4i tr\u00ecnh b\u00e0y v\u1ec1 h\u00f3a h\u1ecdc, c\u1eeda s\u1ed5 ph\u1ea3n \u1ee9ng 170\u2013300 \u00b0C, gi\u1edbi h\u1ea1n SO\u2082 \u0111\u1ea7u v\u00e0o quy\u1ebft \u0111\u1ecbnh h\u1ec7 th\u1ed1ng c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c hay kh\u00f4ng, v\u00e0 m\u1ee9c ph\u00e1t th\u1ea3i th\u1ef1c t\u1ebf \u0111\u1ea1t \u0111\u01b0\u1ee3c trong v\u1eadn h\u00e0nh.<\/p>\n

\"C\u00e1c<\/figure>\n

\u201cDioxin\u201d th\u1ef1c s\u1ef1 c\u00f3 ngh\u0129a l\u00e0 g\u00ec: 210 \u0111\u1ed3ng lo\u1ea1i, m\u1ed9t chu\u1ea9n \u0111\u1ed9c t\u00ednh<\/h2>\n

Dioxin kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t \u0111\u01a1n l\u1ebb. N\u00f3 l\u00e0 m\u1ed9t h\u1ecd g\u1ed3m 210 ch\u1ea5t th\u01a1m clo h\u00f3a: 75 \u0111\u1ed3ng ph\u00e2n polychlorinated dibenzo-p-dioxin (PCDD) v\u00e0 135 \u0111\u1ed3ng ph\u00e2n polychlorinated dibenzofuran (PCDF). Ch\u1ec9 c\u00f3 17 \u0111\u1ed3ng lo\u1ea1i \u0111\u01b0\u1ee3c clo h\u00f3a \u1edf v\u1ecb tr\u00ed 2,3,7,8 m\u1edbi mang \u0111\u1ed9c t\u00ednh \u0111\u00e1ng k\u1ec3, v\u00e0 m\u1ed7i ch\u1ea5t \u0111\u01b0\u1ee3c \u0111\u00e1nh tr\u1ecdng s\u1ed1 so v\u1edbi ch\u1ea5t \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u nhi\u1ec1u nh\u1ea5t trong s\u1ed1 \u0111\u00f3, 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD). C\u01a1 quan Nghi\u00ean c\u1ee9u Ung th\u01b0 Qu\u1ed1c t\u1ebf \u0111\u00e3 ph\u00e2n lo\u1ea1i 2,3,7,8-TCDD l\u00e0 ch\u1ea5t g\u00e2y ung th\u01b0 \u1edf ng\u01b0\u1eddi Nh\u00f3m 1 v\u00e0o n\u0103m 1997, \u0111\u00f3 l\u00e0 l\u00fd do c\u00e1c gi\u1ea5y ph\u00e9p \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng \u0111\u01b0\u01a1ng l\u01b0\u1ee3ng \u0111\u1ed9c (TEQ) thay v\u00ec t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng.<\/p>\n

S\u1ef1 ph\u00e2n bi\u1ec7t \u0111\u00f3 mang t\u00ednh th\u1ef1c ti\u1ec5n, kh\u00f4ng ph\u1ea3i h\u1ecdc thu\u1eadt. K\u1ebft qu\u1ea3 \u0111o \u1ed1ng kh\u00f3i \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o b\u1eb1ng ng TEQ\/m\u00b3 c\u00f3 th\u1ec3 tr\u00f4ng \u1ed5n \u0111\u1ecbnh trong nhi\u1ec1u th\u00e1ng trong khi d\u1ea5u v\u00e2n tay \u0111\u1ed3ng lo\u1ea1i b\u00ean d\u01b0\u1edbi thay \u0111\u1ed5i theo th\u00e0nh ph\u1ea7n nhi\u00ean li\u1ec7u, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ch\u00e1y v\u00e0 h\u00f3a h\u1ecdc tro. Do \u0111\u00f3, m\u1ed9t c\u00f4ng ngh\u1ec7 ki\u1ec3m so\u00e1t ph\u1ea3i t\u1ea5n c\u00f4ng to\u00e0n b\u1ed9 h\u1ecd ch\u1ea5t n\u00e0y tr\u00ean to\u00e0n b\u1ed9 d\u1ea3i clo h\u00f3a c\u1ee7a n\u00f3, kh\u00f4ng ch\u1ec9 \u0111\u1ed3ng lo\u1ea1i \u0111\u00e1nh d\u1ea5u m\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m t\u00ecnh c\u1edd b\u00e1o c\u00e1o. \u0110\u1ed1t ch\u1ea5t th\u1ea3i li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 m\u1ed9t trong nh\u1eefng ngu\u1ed3n ch\u00ednh, ch\u1ecbu tr\u00e1ch nhi\u1ec7m kho\u1ea3ng 10%\u201340% t\u1ed5ng l\u01b0\u1ee3ng dioxin th\u1ea3i v\u00e0o kh\u00f4ng kh\u00ed t\u00f9y thu\u1ed9c v\u00e0o qu\u1ed1c gia v\u00e0 tu\u1ed5i c\u1ee7a \u0111\u1ed9i l\u00f2 \u0111\u1ed1t \u0111\u00e3 l\u1eafp \u0111\u1eb7t.<\/p>\n

T\u1ea1i sao dioxin kh\u00f3 x\u1eed l\u00fd: b\u1ecb ph\u00e1 h\u1ee7y tr\u00ean 700 \u00b0C, t\u00e1i h\u00ecnh th\u00e0nh tr\u00ean \u0111\u01b0\u1eddng h\u1ea1 nhi\u1ec7t<\/h2>\n

Ph\u00e1 h\u1ee7y nhi\u1ec7t PCDD\/PCDF c\u1ea7n nhi\u1ec7t \u0111\u1ed9 tr\u00ean 700 \u00b0C k\u1ebft h\u1ee3p v\u1edbi th\u1eddi gian l\u01b0u v\u00e0 \u0111\u1ed9 xo\u00e1y \u0111\u1ee7 \u2014 quy t\u1eafc 3T kinh \u0111i\u1ec3n. C\u00e1c l\u00f2 \u0111\u1ed1t v\u1eadn h\u00e0nh t\u1ed1t \u0111\u00e1p \u1ee9ng \u0111i\u1ec1u \u0111\u00f3 trong bu\u1ed3ng th\u1ee9 c\u1ea5p kh\u00f4ng kh\u00f3 kh\u0103n. V\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf m\u1ecdi th\u1ee9 x\u1ea3y ra sau \u0111\u00f3. Khi kh\u00ed ngu\u1ed9i \u0111i t\u1eeb kho\u1ea3ng 400 \u00b0C xu\u1ed1ng 200 \u00b0C tr\u00ean \u0111\u01b0\u1eddng \u0111\u1ebfn h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed, dioxin t\u00e1i h\u00ecnh th\u00e0nh b\u1eb1ng t\u1ed5ng h\u1ee3p de novo tr\u00ean b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t tro bay, s\u1eed d\u1ee5ng clo, carbon d\u01b0 v\u00e0 \u0111\u1ed3ng \u0111\u00e3 c\u00f3 trong tro \u0111\u00f3 l\u00e0m nguy\u00ean li\u1ec7u v\u00e0 ch\u1ea5t x\u00fac t\u00e1c.<\/p>\n

Ph\u1ea7n t\u00e1i t\u1ed5ng h\u1ee3p n\u00e0y l\u00e0 ph\u1ea7n kh\u00f3 nh\u1ea5t c\u1ee7a v\u1ea5n \u0111\u1ec1, v\u00e0 \u0111\u00f3 l\u00e0 l\u00fd do \u201cch\u00fang t\u00f4i \u0111\u1ed1t \u1edf 850 \u00b0C\u201d kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn trong qu\u00e1 tr\u00ecnh c\u1ea5p ph\u00e9p. C\u00e1c ph\u00e2n t\u1eed \u0111\u01b0\u1ee3c \u0111o t\u1ea1i \u1ed1ng kh\u00f3i ph\u1ea7n l\u1edbn \u0111\u01b0\u1ee3c t\u1ea1o ra sau ng\u1ecdn l\u1eeda, tr\u00ean b\u1ec1 m\u1eb7t h\u1ea1t, b\u00ean trong \u1ed1ng l\u00e0m m\u00e1t \u2014 ch\u00ednh x\u00e1c l\u00e0 d\u1ea3i nhi\u1ec7t \u0111\u1ed9 n\u01a1i thi\u1ebft b\u1ecb ki\u1ec3m so\u00e1t th\u00f4ng th\u01b0\u1eddng n\u1eb1m. Do \u0111\u00f3, b\u1ea5t k\u1ef3 b\u1ed9 l\u1ecdc lo\u1ea1i b\u1ecf dioxin nghi\u00eam t\u00fac n\u00e0o c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t trong v\u00f9ng l\u00e0m m\u00e1t \u0111\u00f3 v\u00e0 x\u1eed l\u00fd \u0111\u1ed3ng th\u1eddi s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 ph\u00e1 h\u1ee7y, \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, trong d\u00f2ng kh\u00ed ch\u1ee9a nhi\u1ec1u b\u1ee5i.<\/p>\n

C\u00e1ch oxy h\u00f3a x\u00fac t\u00e1c ch\u1ecdn l\u1ecdc ho\u1ea1t \u0111\u1ed9ng b\u00ean trong th\u00e0nh b\u1ed9 l\u1ecdc<\/h2>\n

Oxy h\u00f3a x\u00fac t\u00e1c ch\u1ecdn l\u1ecdc l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh oxy h\u00f3a, kh\u00f4ng ph\u1ea3i qu\u00e1 tr\u00ecnh kh\u1eed. Kh\u00f4ng c\u00f3 amoniac v\u00e0 kh\u00f4ng c\u00f3 thu\u1ed1c th\u1eed b\u1ed5 sung n\u00e0o \u0111\u01b0\u1ee3c ti\u00eau th\u1ee5 cho ch\u00ednh ph\u1ea3n \u1ee9ng dioxin: oxy \u0111\u00e3 c\u00f3 trong kh\u00ed th\u1ea3i l\u00e0 ch\u1ea5t oxy h\u00f3a. B\u00ean trong d\u1ea3i nhi\u1ec7t \u0111\u1ed9 ph\u1ea3n \u1ee9ng x\u00e1c \u0111\u1ecbnh, ch\u1ea5t x\u00fac t\u00e1c ph\u00e2n t\u00e1n xuy\u00ean su\u1ed1t chi\u1ec1u d\u00e0y th\u00e0nh c\u1ee7a ph\u1ea7n t\u1eed s\u1ee3i g\u1ed1m ti\u1ebfp x\u00fac v\u1edbi ph\u00e2n t\u1eed PCDD\/PCDF khi n\u00f3 khu\u1ebfch t\u00e1n qua c\u1ea5u tr\u00fac x\u1ed1p, ph\u00e1 v\u1ee1 v\u00f2ng th\u01a1m v\u00e0 t\u00e1ch clo, \u0111\u1ec3 l\u1ea1i CO\u2082, H\u2082O v\u00e0 HCl l\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m cu\u1ed1i. HCl sau \u0111\u00f3 \u0111\u01b0\u1ee3c thu gi\u1eef \u1edf h\u1ea1 ngu\u1ed3n, ho\u1eb7c trong b\u00e1nh l\u1ecdc ki\u1ec1m, gi\u1ed1ng h\u1ec7t nh\u01b0 b\u1ea5t k\u1ef3 kh\u00ed axit n\u00e0o kh\u00e1c.<\/p>\n

\"C\u1ea5u<\/figure>\n

H\u00ecnh h\u1ecdc r\u1ea5t quan tr\u1ecdng \u1edf \u0111\u00e2y. V\u00ec ch\u1ea5t x\u00fac t\u00e1c \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 xuy\u00ean su\u1ed1t to\u00e0n b\u1ed9 th\u00e0nh d\u00e0y 20 mm thay v\u00ec \u0111\u01b0\u1ee3c ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t, kh\u00ed kh\u00f4ng th\u1ec3 \u0111i v\u00f2ng qua n\u00f3: m\u1ed7i m\u00e9t kh\u1ed1i r\u1eddi kh\u1ecfi thi\u1ebft b\u1ecb \u0111\u1ec1u \u0111\u00e3 \u0111i qua m\u1ed9t \u0111\u1ed9 s\u00e2u v\u1eadt li\u1ec7u c\u00f3 ho\u1ea1t t\u00ednh x\u00fac t\u00e1c v\u1edbi th\u1eddi gian l\u01b0u l\u00e2u h\u01a1n nhi\u1ec1u so v\u1edbi nh\u1eefng g\u00ec m\u1ed9t k\u00eanh t\u1ed5 ong c\u00f3 th\u1ec3 cung c\u1ea5p \u1edf c\u00f9ng v\u1eadn t\u1ed1c b\u1ec1 m\u1eb7t. Ch\u1ea5t n\u1ec1n s\u1ee3i g\u1ed1m c\u0169ng mang ch\u1ee9c n\u0103ng m\u00e0 n\u00f3 lu\u00f4n c\u00f3 \u2014 m\u1ed9t m\u00f4i tr\u01b0\u1eddng l\u1ecdc c\u1ee9ng, ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao v\u1edbi \u0111\u1ed9 x\u1ed1p tr\u00ean 80%, \u0111\u00f3 l\u00e0 \u0111i\u1ec1u cho ph\u00e9p m\u1ed9t ph\u1ea7n t\u1eed v\u1eeba l\u1ecdc v\u1eeba x\u00fac t\u00e1c c\u00f9ng l\u00fac. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc th\u00eam v\u1ec1 c\u1ea5u t\u1ea1o tr\u00ean b\u1ed9 l\u1ecdc s\u1ee3i g\u1ed1m x\u00fac t\u00e1c<\/a> trang.<\/p>\n

C\u1eeda s\u1ed5 ph\u1ea3n \u1ee9ng: 170\u2013300 \u00b0C, t\u1ed1i \u01b0u 220\u2013260 \u00b0C<\/h2>\n

Nhi\u1ec7t \u0111\u1ed9 l\u00e0 bi\u1ebfn thi\u00ean thi\u1ebft k\u1ebf quan tr\u1ecdng nh\u1ea5t, v\u00ec c\u00f9ng m\u1ed9t t\u1ea7ng x\u00fac t\u00e1c \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u ph\u00e1 h\u1ee7y dioxin v\u00e0 gi\u1ea3m NOx c\u00f9ng m\u1ed9t l\u00fac. D\u01b0\u1edbi kho\u1ea3ng 170 \u00b0C, \u0111\u1ed9ng h\u1ecdc oxy h\u00f3a ch\u1eadm l\u1ea1i v\u00e0 thi\u1ebft b\u1ecb tr\u00f4i v\u00e0o v\u00f9ng n\u01a1i amoni bisulfat c\u00f3 th\u1ec3 ng\u01b0ng t\u1ee5 n\u1ebfu amoniac \u0111\u01b0\u1ee3c phun v\u00e0o cho DeNOx. Tr\u00ean 300 \u00b0C, ph\u1ea3n \u1ee9ng DeNOx kh\u00f4ng c\u00f2n c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3, t\u1ed1c \u0111\u1ed9 chuy\u1ec3n h\u00f3a SO\u2082 th\u00e0nh SO\u2083 t\u0103ng l\u00ean, v\u00e0 s\u1ef1 l\u00e3o h\u00f3a nhi\u1ec7t l\u00e2u d\u00e0i c\u1ee7a ch\u1ea5t x\u00fac t\u00e1c t\u0103ng t\u1ed1c.<\/p>\n\n\n\n\n\n\n\n
Nhi\u1ec7t \u0111\u1ed9 kh\u00ed th\u1ea3i<\/th>\nHi\u1ec7u su\u1ea5t DeNOx<\/th>\nPh\u00e1 h\u1ee7y dioxin<\/th>\nGhi ch\u00fa k\u1ef9 thu\u1eadt<\/th>\n<\/tr>\n
170 \u00b0C (gi\u1edbi h\u1ea1n d\u01b0\u1edbi)<\/td>\nD\u01b0\u1edbi \u0111i\u1ec3m thi\u1ebft k\u1ebf<\/td>\nHo\u1ea1t \u0111\u1ed9ng nh\u01b0ng \u0111\u1ed9ng h\u1ecdc ch\u1eadm h\u01a1n<\/td>\nCoi ch\u1eebng ng\u01b0ng t\u1ee5 ABS n\u1ebfu NH\u2083 \u0111\u01b0\u1ee3c phun v\u00e0o<\/td>\n<\/tr>\n
200 \u00b0C<\/td>\n90%<\/td>\nTr\u00ean 95% (TEQ)<\/td>\nV\u1ecb tr\u00ed cu\u1ed1i \u0111u\u00f4i \u0111i\u1ec3n h\u00ecnh sau n\u1ed3i h\u01a1i thu h\u1ed3i nhi\u1ec7t th\u1ea3i<\/td>\n<\/tr>\n
220\u2013260 \u00b0C (t\u1ed1i \u01b0u)<\/td>\n94\u201397%<\/td>\nl\u00ean \u0111\u1ebfn 99,5% (TEQ)<\/td>\nM\u1ee5c ti\u00eau thi\u1ebft k\u1ebf; c\u00e2n b\u1eb1ng t\u1ed1t nh\u1ea5t gi\u1eefa ph\u00e2n h\u1ee7y v\u00e0 DeNOx<\/td>\n<\/tr>\n
280 \u00b0C<\/td>\n98%<\/td>\nTr\u00ean 99% (TEQ)<\/td>\nDeNOx cao h\u01a1n, nh\u01b0ng theo d\u00f5i s\u1ef1 h\u00ecnh th\u00e0nh SO\u2083<\/td>\n<\/tr>\n
300 \u00b0C (gi\u1edbi h\u1ea1n tr\u00ean)<\/td>\n98%<\/td>\nTr\u00ean 99% (TEQ)<\/td>\nGi\u1edbi h\u1ea1n tr\u00ean; tr\u00e1nh v\u1eadn h\u00e0nh li\u00ean t\u1ee5c v\u01b0\u1ee3t ng\u01b0\u1ee1ng n\u00e0y<\/td>\n<\/tr>\n<\/table>\n

V\u1ec1 m\u1eb7t th\u1ef1c t\u1ebf, d\u1ea3i nhi\u1ec7t \u0111\u1ed9 n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi ph\u1ea7n cu\u1ed1i c\u1ee7a d\u00e2y chuy\u1ec1n \u0111\u1ed1t r\u00e1c, ph\u00eda sau l\u00f2 h\u01a1i v\u00e0 ph\u00eda tr\u01b0\u1edbc qu\u1ea1t h\u00fat. \u0110\u00e2y c\u0169ng l\u00e0 l\u00fd do c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 l\u00e0 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p: kh\u00f4ng c\u1ea7n gia nhi\u1ec7t l\u1ea1i b\u1eb1ng kh\u00ed t\u1ef1 nhi\u00ean ho\u1eb7c h\u01a1i n\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea1t d\u1ea3i x\u00fac t\u00e1c, \u0111\u00e2y l\u00e0 kh\u00e1c bi\u1ec7t l\u1edbn nh\u1ea5t v\u1ec1 chi ph\u00ed v\u1eadn h\u00e0nh so v\u1edbi c\u1ea5u h\u00ecnh SCR b\u1ee5i cao th\u00f4ng th\u01b0\u1eddng.<\/p>\n

Gi\u1edbi h\u1ea1n SO\u2082 \u0111\u1ea7u v\u00e0o: Gi\u1eef d\u01b0\u1edbi 50 mg\/m\u00b3 (\u0110KTC, kh\u00f4)<\/h2>\n

SO\u2082 l\u00e0 ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m duy nh\u1ea5t s\u1ebd \u00e2m th\u1ea7m ph\u00e1 h\u1ee7y h\u1ec7 th\u1ed1ng SCO n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd. L\u01b0u hu\u1ef3nh dioxide c\u1ea1nh tranh c\u00f9ng c\u00e1c t\u00e2m ho\u1ea1t \u0111\u1ed9ng m\u00e0 ph\u00e2n t\u1eed dioxin c\u1ea7n, v\u00e0 \u1edf n\u1ed3ng \u0111\u1ed9 cao, n\u00f3 chi\u1ebfm \u0111\u1ee7 s\u1ed1 t\u00e2m \u0111\u1ebfn m\u1ee9c hi\u1ec7u su\u1ea5t ph\u00e2n h\u1ee7y PCDD\/PCDF gi\u1ea3m m\u1ea1nh d\u00f9 x\u00fac t\u00e1c v\u1eabn c\u00f2n nguy\u00ean v\u1eb9n v\u1ec1 m\u1eb7t v\u1eadt l\u00fd. Ranh gi\u1edbi thi\u1ebft k\u1ebf l\u00e0 n\u1ed3ng \u0111\u1ed9 \u0111\u1ea7u v\u00e0o d\u01b0\u1edbi 50 mg\/m\u00b3 (\u0110KTC, kh\u00f4) t\u1ea1i \u0111\u1ea7u v\u00e0o l\u00f2 ph\u1ea3n \u1ee9ng.<\/p>\n

\n

Khi SO\u2082 th\u00f4 cao h\u01a1n 50 mg\/m\u00b3 (\u0110KTC, kh\u00f4), phun b\u1ed9t kh\u00f4 ki\u1ec1m ph\u00eda tr\u01b0\u1edbc l\u00f2 ph\u1ea3n \u1ee9ng \u0111\u1ec3 kh\u1eed l\u01b0u hu\u1ef3nh kh\u00f4. Ch\u1ea5t h\u1ea5p ph\u1ee5 ti\u00eau th\u1ee5 SO\u2082 tr\u01b0\u1edbc khi kh\u00ed ti\u1ebfp x\u00fac v\u1edbi th\u00e0nh x\u00fac t\u00e1c, v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ea3n \u1ee9ng t\u1ea1o th\u00e0nh \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t b\u1ed9 l\u1ecdc nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a b\u00e1nh b\u1ee5i. \u0110\u00e2y l\u00e0 c\u1ea5u h\u00ecnh th\u00e1p h\u1ea5p ph\u1ee5 kh\u00f4 ti\u00eau chu\u1ea9n, kh\u00f4ng ph\u1ea3i h\u1ec7 th\u1ed1ng \u01b0\u1edbt \u2014 kh\u00f4ng c\u00f3 d\u00f2ng n\u01b0\u1edbc th\u1ea3i, kh\u00f4ng t\u1ed1n chi ph\u00ed gia nhi\u1ec7t l\u1ea1i.<\/p>\n<\/div>\n

C\u00f3 m\u1ed9t l\u1ee3i \u00edch th\u1ee9 hai t\u1eeb ch\u1ea5t h\u1ea5p ph\u1ee5 th\u01b0\u1ee3ng ngu\u1ed3n \u0111\u00f3. V\u00ec b\u1ed9t ki\u1ec1m c\u0169ng trung h\u00f2a HCl v\u00e0 HF, n\u00f3 b\u1ea3o v\u1ec7 x\u00fac t\u00e1c kh\u1ecfi c\u00e1c ranh gi\u1edbi h\u00f3a h\u1ecdc m\u00e0 m\u1ecdi h\u1ec7 th\u1ed1ng g\u1ed1m ph\u1ea3i tu\u00e2n th\u1ee7 \u2014 florua tr\u00ean 5 ppm, s\u01b0\u01a1ng axit photphoric, v\u00e0 c\u00e1c oxit ki\u1ec1m (Na\u2082O, K\u2082O) khi kh\u00f4ng c\u00f3 ch\u1ea5t h\u1ea5p ph\u1ee5 ki\u1ec1m. C\u00e1c nh\u00e0 m\u00e1y b\u1ecf qua b\u01b0\u1edbc h\u1ea5p ph\u1ee5 kh\u00f4 \u0111\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u00f3a ch\u1ea5t th\u01b0\u1eddng ph\u1ea3i tr\u1ea3 gi\u00e1 sau \u0111\u00f3 b\u1eb1ng tu\u1ed5i th\u1ecd x\u00fac t\u00e1c.<\/p>\n

Thu gi\u1eef hai giai \u0111o\u1ea1n: Ch\u1eb7n b\u1eaft b\u00e1nh b\u1ee5i k\u1ebft h\u1ee3p ph\u00e2n h\u1ee7y trong th\u00e0nh<\/h2>\n

Lo\u1ea1i b\u1ecf dioxin trong h\u1ec7 th\u1ed1ng n\u00e0y di\u1ec5n ra \u1edf hai n\u01a1i, v\u00e0 hi\u1ec3u c\u1ea3 hai gi\u00fap gi\u1ea3i th\u00edch t\u1ea1i sao hi\u1ec7u su\u1ea5t \u0111o \u0111\u01b0\u1ee3c l\u1ea1i cao \u0111\u1ebfn v\u1eady. Th\u1ee9 nh\u1ea5t, c\u00e1c h\u1ea1t v\u1eadt ch\u1ea5t b\u1ecb ch\u1eb7n b\u1eaft tr\u00ean b\u1ec1 m\u1eb7t ngo\u00e0i c\u1ee7a ph\u1ea7n t\u1eed, n\u01a1i hi\u1ec7u su\u1ea5t l\u1ecdc v\u01b0\u1ee3t qu\u00e1 99,9%. M\u1ed9t ph\u1ea7n \u0111\u00e1ng k\u1ec3 kh\u1ed1i l\u01b0\u1ee3ng dioxin trong kh\u00ed th\u1ea3i l\u00f2 \u0111\u1ed1t \u0111\u01b0\u1ee3c h\u1ea5p ph\u1ee5 l\u00ean b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t tro bay, n\u00ean nh\u1eefng ph\u00e2n t\u1eed \u0111\u00f3 ho\u00e0n to\u00e0n kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi x\u00fac t\u00e1c \u2014 ch\u00fang b\u1ecb lo\u1ea1i b\u1ecf c\u00f9ng b\u00e1nh b\u1ee5i v\u00e0 th\u1ea3i ra c\u00f9ng tro.<\/p>\n

Th\u1ee9 hai, ph\u1ea7n pha h\u01a1i th\u1ef1c s\u1ef1 \u0111i qua b\u00e1nh b\u1ee5i v\u00e0 v\u00e0o trong th\u00e0nh b\u1ecb x\u00fac t\u00e1c ph\u00e2n h\u1ee7y tr\u00ean \u0111\u01b0\u1eddng \u0111\u1ebfn ph\u00eda s\u1ea1ch. B\u1ea5t c\u1ee9 th\u1ee9 g\u00ec tho\u00e1t qua c\u1ea3 hai giai \u0111o\u1ea1n s\u1ebd ph\u1ea3i l\u00e0 ph\u00e2n t\u1eed kh\u00f4ng h\u1ea5p ph\u1ee5 l\u00ean h\u1ea1t n\u00e0o v\u00e0 kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi t\u00e2m ho\u1ea1t \u0111\u1ed9ng n\u00e0o trong th\u1eddi gian l\u01b0u v\u00e0i gi\u00e2y b\u00ean trong th\u00e0nh x\u1ed1p d\u00e0y 20 mm, \u0111\u00e2y l\u00e0 con \u0111\u01b0\u1eddng r\u1ea5t kh\u00f3 x\u1ea3y ra. C\u01a1 ch\u1ebf hai giai \u0111o\u1ea1n n\u00e0y c\u0169ng l\u00e0 l\u00fd do hi\u1ec7u su\u1ea5t v\u1eabn \u1ed5n \u0111\u1ecbnh qua c\u00e1c dao \u0111\u1ed9ng t\u1ea3i: b\u00e1nh b\u1ee5i d\u00e0y l\u00ean m\u1ed9t ch\u00fat khi t\u1ea3i b\u1ee5i cao h\u01a1n v\u00e0 l\u00e0m th\u00eam ph\u1ea7n vi\u1ec7c \u0111\u00f3.<\/p>\n

Hi\u1ec7u su\u1ea5t ph\u00e1t th\u1ea3i t\u00edch h\u1ee3p trong m\u1ed9t thi\u1ebft b\u1ecb<\/h2>\n

V\u00ec c\u00f9ng m\u1ed9t ph\u1ea7n t\u1eed l\u1ecdc mang ch\u1ee9c n\u0103ng x\u00fac t\u00e1c, m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh \u0111\u00e1p \u1ee9ng b\u1ed1n ch\u1ea5t \u00f4 nhi\u1ec5m \u0111\u1ed3ng th\u1eddi thay v\u00ec b\u1ed1n b\u1ea3o \u0111\u1ea3m ri\u00eang bi\u1ec7t t\u1eeb b\u1ed1n nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n\n\n\n
Ch\u1ea5t \u00f4 nhi\u1ec5m<\/th>\nM\u1ee9c \u0111\u1ea7u ra<\/th>\nC\u01a1 ch\u1ebf<\/th>\n<\/tr>\n
H\u1ea1t v\u1eadt ch\u1ea5t<\/td>\n\u22645 mg\/m\u00b3<\/td>\nL\u1ecdc b\u1ec1 m\u1eb7t, hi\u1ec7u su\u1ea5t >99,9%<\/td>\n<\/tr>\n
SO\u2082<\/td>\n\u226430 mg\/m\u00b3<\/td>\nCh\u1ea5t h\u1ea5p ph\u1ee5 ki\u1ec1m kh\u00f4 k\u1ebft h\u1ee3p b\u00e1nh l\u1ecdc ph\u1ea3n \u1ee9ng<\/td>\n<\/tr>\n
NOx<\/td>\n\u226450 mg\/m\u00b3<\/td>\nNH\u2083-SCR tr\u00ean x\u00fac t\u00e1c trong th\u00e0nh b\u1ed9 l\u1ecdc<\/td>\n<\/tr>\n
Dioxin (PCDD\/PCDF)<\/td>\nlo\u1ea1i b\u1ecf t\u1edbi 99,5% (TEQ)<\/td>\nOxy h\u00f3a x\u00fac t\u00e1c ch\u1ecdn l\u1ecdc \u1edf 170\u2013300 \u00b0C<\/td>\n<\/tr>\n<\/table>\n

D\u1eef li\u1ec7u th\u1eed nghi\u1ec7m \u0111\u1ea7y \u0111\u1ee7 \u0111\u1eb1ng sau nh\u1eefng con s\u1ed1 n\u00e0y, bao g\u1ed3m di\u1ec5n bi\u1ebfn t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t theo th\u1eddi gian, \u0111\u01b0\u1ee3c t\u00f3m t\u1eaft tr\u00ean hi\u1ec7u su\u1ea5t<\/a> trang.<\/p>\n

Phun than ho\u1ea1t t\u00ednh so v\u1edbi Ph\u00e1 h\u1ee7y x\u00fac t\u00e1c<\/h2>\n

Phun than ho\u1ea1t t\u00ednh l\u00e0 c\u00f4ng ngh\u1ec7 hi\u1ec7n h\u00e0nh v\u00e0 n\u00f3 th\u1ef1c s\u1ef1 l\u00e0m gi\u1ea3m n\u1ed3ng \u0111\u1ed9 \u0111o \u0111\u01b0\u1ee3c t\u1ea1i \u1ed1ng kh\u00f3i, v\u00ec v\u1eady n\u00f3 x\u1ee9ng \u0111\u00e1ng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 c\u00f4ng b\u1eb1ng. H\u1ea1n ch\u1ebf c\u1ee7a n\u00f3 kh\u00f4ng n\u1eb1m \u1edf hi\u1ec7u su\u1ea5t lo\u1ea1i b\u1ecf \u2014 m\u00e0 l\u00e0 \u0111i\u1ec1u g\u00ec x\u1ea3y ra v\u1edbi ch\u1ea5t \u00f4 nhi\u1ec5m sau \u0111\u00f3. H\u1ea5p ph\u1ee5 t\u1eadp trung PCDD\/PCDF l\u00ean than, sau \u0111\u00f3 \u0111\u01b0\u1ee3c thu gom trong t\u00fai l\u1ecdc c\u00f9ng v\u1edbi tro bay. Dioxin ch\u01b0a b\u1ecb ph\u00e1 h\u1ee7y; n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u1ec3n v\u00e0o m\u1ed9t ch\u1ea5t th\u1ea3i r\u1eafn m\u00e0 \u1edf h\u1ea7u h\u1ebft c\u00e1c khu v\u1ef1c ph\u00e1p l\u00fd \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 nguy h\u1ea1i v\u00e0 ph\u1ea3i ch\u00f4n l\u1ea5p ho\u1eb7c \u0111\u01b0a tr\u1edf l\u1ea1i l\u00f2 nung ho\u1eb7c l\u00f2 \u0111\u1ed1t.<\/p>\n\n\n\n\n\n\n\n
Ti\u00eau ch\u00ed<\/th>\nPhun than ho\u1ea1t t\u00ednh<\/th>\nB\u1ed9 l\u1ecdc g\u1ed1m x\u00fac t\u00e1c SCO<\/th>\n<\/tr>\n
S\u1ed1 ph\u1eadn c\u1ee7a ch\u1ea5t \u00f4 nhi\u1ec5m<\/td>\nChuy\u1ec3n v\u00e0o than \u0111\u00e3 qua s\u1eed d\u1ee5ng v\u00e0 tro bay<\/td>\nPh\u00e1 h\u1ee7y th\u00e0nh CO\u2082, H\u2082O v\u00e0 HCl<\/td>\n<\/tr>\n
Ph\u00e2n lo\u1ea1i ch\u1ea5t th\u1ea3i<\/td>\nTro nguy h\u1ea1i ch\u1ee9a dioxin<\/td>\nTro kh\u00f4ng c\u00f3 t\u1ea3i l\u01b0\u1ee3ng dioxin b\u1ed5 sung<\/td>\n<\/tr>\n
V\u1eadt t\u01b0 ti\u00eau hao<\/td>\n\u0110\u1ecbnh l\u01b0\u1ee3ng than b\u1ed9t li\u00ean t\u1ee5c<\/td>\nKh\u00f4ng d\u00f9ng than; ch\u1ec9 d\u00f9ng ch\u1ea5t h\u1ea5p ph\u1ee5 ki\u1ec1m n\u1ebfu SO\u2082 y\u00eau c\u1ea7u<\/td>\n<\/tr>\n
Ch\u1ee9c n\u0103ng b\u1ed5 sung<\/td>\nCh\u1ec9 dioxin<\/td>\nB\u1ee5i, SO\u2082, NOx v\u00e0 dioxin trong m\u1ed9t thi\u1ebft b\u1ecb<\/td>\n<\/tr>\n
\u0110\u1ed9 nh\u1ea1y<\/td>\nCh\u1ea5t l\u01b0\u1ee3ng than, t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh l\u01b0\u1ee3ng, tr\u1ed9n<\/td>\nC\u1eeda s\u1ed5 nhi\u1ec7t \u0111\u1ed9 v\u00e0 SO\u2082 \u0111\u1ea7u v\u00e0o<\/td>\n<\/tr>\n<\/table>\n

\u0110\u1ed1i v\u1edbi m\u1ed9t nh\u00e0 v\u1eadn h\u00e0nh c\u00f3 chi ph\u00ed x\u1eed l\u00fd tro \u0111ang t\u0103ng ho\u1eb7c gi\u1ea5y ph\u00e9p \u0111ang b\u1ecb si\u1ebft ch\u1eb7t, s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00f3 th\u01b0\u1eddng mang t\u00ednh quy\u1ebft \u0111\u1ecbnh. Phun than gi\u1ea3i quy\u1ebft ph\u00e9p \u0111o t\u1ea1i \u1ed1ng kh\u00f3i; oxy h\u00f3a x\u00fac t\u00e1c gi\u1ea3i quy\u1ebft c\u00e2n b\u1eb1ng v\u1eadt ch\u1ea5t.<\/p>\n

\u0110\u1eb7c t\u00ednh ph\u1ea7n t\u1eed v\u00e0 ph\u1ea1m vi v\u1eadn h\u00e0nh<\/h2>\n
\"C\u1eadn<\/figure>\n

Ph\u1ea7n t\u1eed l\u00e0 m\u1ed9t \u1ed1ng l\u1ecdc g\u1ed1m c\u1ee9ng d\u1ea1ng n\u1ebfn v\u1edbi ch\u1ea5t x\u00fac t\u00e1c \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p xuy\u00ean qua th\u00e0nh. H\u00ecnh h\u1ecdc ti\u00eau chu\u1ea9n v\u00e0 gi\u1edbi h\u1ea1n v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea d\u01b0\u1edbi \u0111\u00e2y; \u0111\u00e2y l\u00e0 nh\u1eefng con s\u1ed1 m\u00e0 qu\u1ea1t, b\u00ecnh ch\u1ee9a v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m s\u1ea1ch c\u1ee7a b\u1ea1n ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Tham s\u1ed1<\/th>\nGi\u00e1 tr\u1ecb<\/th>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc<\/td>\n\u03c6150 \u00d7 \u03c6110 \u00d7 3.000 mm<\/td>\n<\/tr>\n
\u0110\u1ed9 d\u00e0y th\u00e0nh<\/td>\n20 mm<\/td>\n<\/tr>\n
Dung sai k\u00edch th\u01b0\u1edbc<\/td>\nOD \u00b12 mm \/ chi\u1ec1u d\u00e0i \u00b120 mm<\/td>\n<\/tr>\n
\u0110\u1ed9 x\u1ed1p<\/td>\n>80%<\/td>\n<\/tr>\n
Ch\u00eanh \u00e1p s\u1ea1ch<\/td>\n300 Pa t\u1ea1i v\u1eadn t\u1ed1c m\u1eb7t 1 m\/ph\u00fat (s\u1ea1ch)<\/td>\n<\/tr>\n
Tr\u1edf l\u1ef1c h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh<\/td>\n900\u20131.500 Pa<\/td>\n<\/tr>\n
V\u1eadn t\u1ed1c l\u1ecdc<\/td>\n2\u20135 cm\/s (\u22481,2\u20133,0 m\u00b3\/ph\u00fat tr\u00ean m\u00b2)<\/td>\n<\/tr>\n
L\u00e0m s\u1ea1ch b\u1eb1ng xung ph\u1ea3n l\u1ef1c<\/td>\n0,4\u20130,7 MPa, 0,1\u20130,15 gi\u00e2y, k\u00edch ho\u1ea1t b\u1eb1ng ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t<\/td>\n<\/tr>\n
Nhi\u1ec7t \u0111\u1ed9 ph\u1ee5c v\u1ee5 li\u00ean t\u1ee5c<\/td>\n1100 \u00b0C<\/td>\n<\/tr>\n
\u0110\u1ec9nh ng\u1eafn h\u1ea1n<\/td>\n1300 \u00b0C kh\u00f4ng qu\u00e1 30 ph\u00fat<\/td>\n<\/tr>\n
Tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng<\/td>\nh\u01a1n 5 n\u0103m, k\u00e8m b\u1ea3o h\u00e0nh b\u1eb1ng v\u0103n b\u1ea3n 5 n\u0103m<\/td>\n<\/tr>\n<\/table>\n

N\u01a1i c\u1ea5u h\u00ecnh n\u00e0y \u0111\u00e3 v\u00e0 \u0111ang v\u1eadn h\u00e0nh<\/h2>\n

Anchor \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp n\u0103m 2019 v\u00e0 k\u1ec3 t\u1eeb \u0111\u00f3 \u0111\u00e3 b\u00e0n giao h\u01a1n 40 d\u1ef1 \u00e1n trong c\u00e1c l\u0129nh v\u1ef1c \u0111\u1ed1t r\u00e1c, xi m\u0103ng, th\u1ee7y tinh, th\u00e9p v\u00e0 kim lo\u1ea1i m\u00e0u. T\u00e0i li\u1ec7u tham chi\u1ebfu ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi ki\u1ec3m so\u00e1t dioxin l\u00e0 m\u1ed9t d\u00e2y chuy\u1ec1n \u0111\u1ed1t r\u00e1c th\u1ea3i \u0111\u00f4 th\u1ecb 750 t\/ng\u00e0y t\u1ea1i Nansha, Qu\u1ea3ng Ch\u00e2u, n\u01a1i c\u00e1c ph\u1ea7n t\u1eed l\u1ecdc x\u00fac t\u00e1c x\u1eed l\u00fd b\u1ee5i, kh\u00ed axit, NOx v\u00e0 dioxin trong m\u1ed9t b\u00ecnh ch\u1ee9a duy nh\u1ea5t \u1edf cu\u1ed1i d\u00e2y chuy\u1ec1n. M\u1ed9t t\u00e0i li\u1ec7u tham chi\u1ebfu d\u00e0i h\u1ea1n th\u1ee9 hai l\u00e0 d\u00e2y chuy\u1ec1n clinker xi m\u0103ng 2.500 t\/ng\u00e0y t\u1ea1i S\u01a1n \u0110\u00f4ng, \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh n\u0103m 2019, ch\u1ee9ng minh \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc c\u1ee7a ph\u1ea7n t\u1eed trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec1u b\u1ee5i, nhi\u1ec1u ki\u1ec1m qua nhi\u1ec1u chu k\u1ef3 v\u1eadn h\u00e0nh.<\/p>\n

C\u00e1c b\u1ed1 tr\u00ed theo t\u1eebng l\u0129nh v\u1ef1c kh\u00e1c, bao g\u1ed3m v\u1ecb tr\u00ed c\u1ee7a SCO so v\u1edbi l\u00f2 h\u01a1i v\u00e0 th\u00e1p h\u1ea5p th\u1ee5 kh\u00f4, \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 tr\u00ean \u1ee9ng d\u1ee5ng<\/a> trang.<\/p>\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

B\u1ed9 l\u1ecdc lo\u1ea1i b\u1ecf dioxin c\u1ea7n ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00e0o?<\/h3>\n

T\u1eeb 170 \u00b0C \u0111\u1ebfn 300 \u00b0C, v\u1edbi hi\u1ec7u su\u1ea5t k\u1ebft h\u1ee3p lo\u1ea1i b\u1ecf dioxin v\u00e0 NOx t\u1ed1t nh\u1ea5t \u1edf 220\u2013260 \u00b0C. \u1ede 200 \u00b0C, hi\u1ec7u su\u1ea5t DeNOx kho\u1ea3ng 90%; \u1edf 280 \u00b0C \u0111\u1ea1t 98%. Hi\u1ec7u su\u1ea5t ph\u00e2n h\u1ee7y dioxin v\u1eabn tr\u00ean 95% (TEQ) trong to\u00e0n b\u1ed9 d\u1ea3i v\u00e0 \u0111\u1ea1t \u0111\u1ec9nh l\u00ean t\u1edbi 99,5% (TEQ) trong v\u00f9ng t\u1ed1i \u01b0u, do \u0111\u00f3 th\u00f4ng th\u01b0\u1eddng kh\u00f4ng c\u1ea7n h\u00e2m n\u00f3ng l\u1ea1i kh\u00ed th\u1ea3i.<\/p>\n

T\u1ea1i sao SO\u2082 \u0111\u1ea7u v\u00e0o ph\u1ea3i duy tr\u00ec d\u01b0\u1edbi 50 mg\/m\u00b3?<\/h3>\n

B\u1edfi v\u00ec SO\u2082 c\u1ea1nh tranh c\u00f9ng c\u00e1c t\u00e2m x\u00fac t\u00e1c ho\u1ea1t \u0111\u1ed9ng m\u00e0 c\u00e1c ph\u00e2n t\u1eed PCDD\/PCDF c\u1ea7n. Khi m\u1ed9t ph\u1ea7n \u0111\u00e1ng k\u1ec3 c\u00e1c t\u00e2m n\u00e0y b\u1ecb c\u00e1c h\u1ee3p ch\u1ea5t l\u01b0u hu\u1ef3nh chi\u1ebfm gi\u1eef, hi\u1ec7u su\u1ea5t ph\u00e2n h\u1ee7y dioxin s\u1ebd gi\u1ea3m ngay c\u1ea3 khi ch\u1ea5t x\u00fac t\u00e1c kh\u00f4ng b\u1ecb h\u01b0 h\u1ea1i. Khi kh\u00ed th\u00f4 v\u01b0\u1ee3t qu\u00e1 50 mg\/m\u00b3 (\u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n, kh\u00f4), b\u1ed9t ki\u1ec1m kh\u00f4 \u0111\u01b0\u1ee3c phun v\u00e0o tr\u01b0\u1edbc l\u00f2 ph\u1ea3n \u1ee9ng \u0111\u1ec3 gi\u1ea3m SO\u2082 tr\u01b0\u1edbc khi kh\u00ed ti\u1ebfp x\u00fac v\u1edbi th\u00e0nh x\u00fac t\u00e1c.<\/p>\n

C\u00f3 c\u00f2n c\u1ea7n than ho\u1ea1t t\u00ednh song song v\u1edbi b\u1ed9 l\u1ecdc x\u00fac t\u00e1c kh\u00f4ng?<\/h3>\n

Trong h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft k\u1ebf, kh\u00f4ng. Vi\u1ec7c phun than ho\u1ea1t t\u00ednh chuy\u1ec3n dioxin t\u1eeb pha kh\u00ed sang ch\u1ea5t r\u1eafn, sau \u0111\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c x\u1eed l\u00fd th\u1ea3i b\u1ecf, trong khi SCO ph\u00e2n h\u1ee7y n\u00f3 th\u00e0nh CO\u2082, H\u2082O v\u00e0 HCl. Lo\u1ea1i b\u1ecf vi\u1ec7c \u0111\u1ecbnh l\u01b0\u1ee3ng carbon c\u0169ng lo\u1ea1i b\u1ecf m\u1ed9t chi ph\u00ed v\u1eadt t\u01b0 ti\u00eau hao v\u00e0 tr\u00e1nh l\u00e0m t\u0103ng th\u00eam kh\u1ed1i l\u01b0\u1ee3ng dioxin trong tro bay. M\u1ed9t s\u1ed1 nh\u00e0 m\u00e1y v\u1eabn gi\u1eef vi\u1ec7c phun carbon nh\u01b0 ph\u01b0\u01a1ng \u00e1n d\u1ef1 ph\u00f2ng cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea5t th\u01b0\u1eddng.<\/p>\n

C\u00e1c ph\u1ea7n t\u1eed l\u1ecdc x\u00fac t\u00e1c c\u00f3 tu\u1ed5i th\u1ecd bao l\u00e2u?<\/h3>\n

Tu\u1ed5i th\u1ecd ph\u1ee5c v\u1ee5 h\u01a1n 5 n\u0103m trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng, \u0111\u01b0\u1ee3c b\u1ea3o \u0111\u1ea3m b\u1eb1ng b\u1ea3o h\u00e0nh b\u1eb1ng v\u0103n b\u1ea3n 5 n\u0103m. Tu\u1ed5i th\u1ecd th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c ch\u1ee7 y\u1ebfu v\u00e0o ba y\u1ebfu t\u1ed1: duy tr\u00ec trong kho\u1ea3ng 170\u2013300 \u00b0C, gi\u1eef SO\u2082 \u0111\u1ea7u v\u00e0o d\u01b0\u1edbi gi\u1edbi h\u1ea1n thi\u1ebft k\u1ebf, v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c gi\u1edbi h\u1ea1n h\u00f3a h\u1ecdc \u0111\u1ed1i v\u1edbi florua, s\u01b0\u01a1ng axit photphoric v\u00e0 c\u00e1c oxit ki\u1ec1m.<\/p>\n

C\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i m\u1ed9t t\u00fai l\u1ecdc b\u1ee5i hi\u1ec7n h\u1eefu sang ki\u1ec3m so\u00e1t dioxin x\u00fac t\u00e1c kh\u00f4ng?<\/h3>\n

Th\u01b0\u1eddng th\u00ec c\u00f3. H\u00ecnh d\u1ea1ng thi\u1ebft b\u1ecb, t\u1ea5m \u1ed1ng v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m s\u1ea1ch b\u1eb1ng xung ph\u1ea3n l\u1ef1c c\u1ee7a t\u00fai l\u1ecdc b\u1ee5i th\u01b0\u1eddng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c \u1ed1ng g\u1ed1m \u03c6150 \u00d7 \u03c6110 \u00d7 3.000 mm, n\u00ean vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i ch\u1ee7 y\u1ebfu l\u00e0 v\u1ea5n \u0111\u1ec1 s\u1ed1 l\u01b0\u1ee3ng ph\u1ea7n t\u1eed, khung gi\u1eef v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u1ed1ng g\u00f3p. C\u00e1c ki\u1ec3m tra quan tr\u1ecdng l\u00e0 bi\u00ean d\u1ef1 ph\u00f2ng qu\u1ea1t hi\u1ec7n c\u00f3 so v\u1edbi tr\u1edf l\u1ef1c v\u1eadn h\u00e0nh 900\u20131.500 Pa v\u00e0 li\u1ec7u nhi\u1ec7t \u0111\u1ed9 kh\u00ed hi\u1ec7n t\u1ea1i c\u00f3 n\u1eb1m trong c\u1eeda s\u1ed5 x\u00fac t\u00e1c hay kh\u00f4ng.<\/p>\n

Nh\u1eefng h\u00f3a ch\u1ea5t n\u00e0o l\u00e0m h\u1ecfng x\u00fac t\u00e1c?<\/h3>\n

Hydro florua tr\u00ean 5 ppm, s\u01b0\u01a1ng axit photphoric v\u00e0 c\u00e1c oxit ki\u1ec1m (Na\u2082O, K\u2082O) khi kh\u00f4ng c\u00f3 ch\u1ea5t h\u1ea5p ph\u1ee5 ki\u1ec1m. Cho ch\u1ea5t h\u1ea5p ph\u1ee5 kh\u00f4 ki\u1ec1m ch\u1ea1y tr\u01b0\u1edbc l\u00f2 ph\u1ea3n \u1ee9ng s\u1ebd trung h\u00f2a h\u1ea7u h\u1ebft c\u00e1c ch\u1ea5t n\u00e0y tr\u01b0\u1edbc khi ch\u00fang ti\u1ebfp c\u1eadn th\u00e0nh \u1ed1ng, \u0111\u00f3 l\u00e0 l\u00fd do b\u01b0\u1edbc kh\u1eed l\u01b0u hu\u1ef3nh kh\u00f4 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb ngay c\u1ea3 v\u1edbi nhi\u00ean li\u1ec7u c\u00f3 h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh khi\u00eam t\u1ed1n.<\/p>\n

\n

H\u00e3y g\u1eedi cho ch\u00fang t\u00f4i l\u01b0u l\u01b0\u1ee3ng kh\u00ed th\u1ea3i, bi\u00ean d\u1ea1ng nhi\u1ec7t \u0111\u1ed9, t\u1ea3i l\u01b0\u1ee3ng SO\u2082 v\u00e0 b\u1ee5i c\u1ee7a b\u1ea1n, ch\u00fang t\u00f4i s\u1ebd t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc b\u00ecnh l\u1ecdc x\u00fac t\u00e1c theo gi\u1edbi h\u1ea1n cho ph\u00e9p dioxin c\u1ee7a b\u1ea1n, k\u00e8m theo t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t d\u1ef1 ki\u1ebfn v\u00e0 s\u1ed1 l\u01b0\u1ee3ng ph\u1ea7n t\u1eed. Y\u00eau c\u1ea7u \u0111\u1ec1 xu\u1ea5t k\u1ef9 thu\u1eadt<\/a>.<\/p>\n<\/div>\n

\n

B\u00e0i \u0111\u1ecdc li\u00ean quan:<\/strong> kh\u1eed NOx \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p 170\u2013300 \u00b0C<\/a> \u00b7 b\u1ed9 l\u1ecdc g\u1ed1m x\u00fac t\u00e1c so v\u1edbi SCR: chi ph\u00ed \u0111\u1ea7u t\u01b0, chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 di\u1ec7n t\u00edch l\u1eafp \u0111\u1eb7t<\/a> \u00b7 b\u1ed9 l\u1ecdc s\u1ee3i g\u1ed1m x\u00fac t\u00e1c<\/a> \u00b7 th\u00eam tr\u00ean blog<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Dioxins are the most tightly regulated pollutants leaving a municipal or hazardous waste incinerator, and the conventional answer \u2014 activated carbon injection \u2014 destroys nothing. It moves the molecule out of the gas phase and into a spent carbon residue that still has to be landfilled or thermally treated somewhere else. A dioxin removal filter […]<\/p>\n","protected":false},"author":1,"featured_media":863,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-866","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-fiber-filters"],"yoast_head":"\nDioxin Removal Filter for Waste Incinerators | Anchor<\/title>\n<meta name=\"description\" content=\"Our dioxin removal filter destroys PCDD\/PCDF at 170-300\u00b0C: up to 99.5% TEQ removal, >99.9% dust capture, 5-year warranty. 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