{"id":9123,"date":"2026-07-04T06:25:54","date_gmt":"2026-07-03T23:25:54","guid":{"rendered":"https:\/\/hoachatlocthien.com\/?p=9123"},"modified":"2026-07-07T16:18:10","modified_gmt":"2026-07-07T09:18:10","slug":"fecl2-vs-feso4-vs-pac","status":"publish","type":"post","link":"https:\/\/hoachatlocthien.com\/en\/fecl2-vs-feso4-vs-pac","title":{"rendered":"Comparison of FeCl2, FeSO4, and PAC: Choosing the Right Coagulant for Each Application"},"content":{"rendered":"<div class=\"container\">\n<h1>So S\u00e1nh FeCl2, FeSO4 v\u00e0 PAC: Ch\u1ecdn \u0110\u00fang H\u00f3a Ch\u1ea5t Keo T\u1ee5 Cho T\u1eebng \u1ee8ng D\u1ee5ng<\/h1>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_72 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung<\/p>\n<p><span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav>\n<ul class='ez-toc-list ez-toc-list-level-1 ' >\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Gioi_Thieu_Quyet_Dinh_Sai_Hoa_Chat_Keo_Tu_Co_The_Ton_Hang_Chuc_Trieu_Dong_Moi_Thang\" title=\"Gi\u1edbi Thi\u1ec7u: Quy\u1ebft \u0110\u1ecbnh Sai H\u00f3a Ch\u1ea5t Keo T\u1ee5 C\u00f3 Th\u1ec3 T\u1ed1n H\u00e0ng Ch\u1ee5c Tri\u1ec7u \u0110\u1ed3ng M\u1ed7i Th\u00e1ng\">Gi\u1edbi Thi\u1ec7u: Quy\u1ebft \u0110\u1ecbnh Sai H\u00f3a Ch\u1ea5t Keo T\u1ee5 C\u00f3 Th\u1ec3 T\u1ed1n H\u00e0ng Ch\u1ee5c Tri\u1ec7u \u0110\u1ed3ng M\u1ed7i Th\u00e1ng<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Bang_So_Sanh_Tong_Quan_Ba_Hoa_Chat_Keo_Tu\" title=\"B\u1ea3ng So S\u00e1nh T\u1ed5ng Quan Ba H\u00f3a Ch\u1ea5t Keo T\u1ee5\">B\u1ea3ng So S\u00e1nh T\u1ed5ng Quan Ba H\u00f3a Ch\u1ea5t Keo T\u1ee5<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Co_Che_Keo_Tu_%E2%80%94_Tai_Sao_Sat_Tot_Hon_Nhom_Trong_Nuoc_Thai_Cong_Nghiep\" title=\"C\u01a1 Ch\u1ebf Keo T\u1ee5 \u2014 T\u1ea1i Sao S\u1eaft T\u1ed1t H\u01a1n Nh\u00f4m Trong N\u01b0\u1edbc Th\u1ea3i C\u00f4ng Nghi\u1ec7p?\">C\u01a1 Ch\u1ebf Keo T\u1ee5 \u2014 T\u1ea1i Sao S\u1eaft T\u1ed1t H\u01a1n Nh\u00f4m Trong N\u01b0\u1edbc Th\u1ea3i C\u00f4ng Nghi\u1ec7p?<\/a>\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Muoi_Sat_Co_Che_Hai_Buoc_Fe%C2%B2%E2%81%BA_%E2%86%92_Fe%C2%B3%E2%81%BA_%E2%86%92_FeOH%E2%82%83\" title=\"Mu\u1ed1i S\u1eaft: C\u01a1 Ch\u1ebf Hai B\u01b0\u1edbc Fe\u00b2\u207a \u2192 Fe\u00b3\u207a \u2192 Fe(OH)\u2083\">Mu\u1ed1i S\u1eaft: C\u01a1 Ch\u1ebf Hai B\u01b0\u1edbc Fe\u00b2\u207a \u2192 Fe\u00b3\u207a \u2192 Fe(OH)\u2083<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#So_sanh_FeOH%E2%82%83_va_AlOH%E2%82%83\" title=\"So s\u00e1nh Fe(OH)\u2083 v\u00e0 Al(OH)\u2083\">So s\u00e1nh Fe(OH)\u2083 v\u00e0 Al(OH)\u2083<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Anh_Huong_pH_Den_Hieu_Qua_Keo_Tu\" title=\"\u1ea2nh H\u01b0\u1edfng pH \u0110\u1ebfn Hi\u1ec7u Qu\u1ea3 Keo T\u1ee5\">\u1ea2nh H\u01b0\u1edfng pH \u0110\u1ebfn Hi\u1ec7u Qu\u1ea3 Keo T\u1ee5<\/a><\/li>\n<\/ul>\n<\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#FeCl2_Trong_Xu_Ly_Nuoc_Thai_Det_Nhuom_%E2%80%94_Tai_Sao_Ket_Hop_Fenton\" title=\"FeCl2 Trong X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i D\u1ec7t Nhu\u1ed9m \u2014 T\u1ea1i Sao K\u1ebft H\u1ee3p Fenton?\">FeCl2 Trong X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i D\u1ec7t Nhu\u1ed9m \u2014 T\u1ea1i Sao K\u1ebft H\u1ee3p Fenton?<\/a>\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Phan_Loai_Thuoc_Nhuom_va_Hieu_Qua_Xu_Ly\" title=\"Ph\u00e2n Lo\u1ea1i Thu\u1ed1c Nhu\u1ed9m v\u00e0 Hi\u1ec7u Qu\u1ea3 X\u1eed L\u00fd\">Ph\u00e2n Lo\u1ea1i Thu\u1ed1c Nhu\u1ed9m v\u00e0 Hi\u1ec7u Qu\u1ea3 X\u1eed L\u00fd<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Co_Che_Fenton_Tai_Sao_FeCl2_La_%E2%80%9CNguyen_Lieu%E2%80%9D_Ly_Tuong\" title=\"C\u01a1 Ch\u1ebf Fenton: T\u1ea1i Sao FeCl2 L\u00e0 &#8220;Nguy\u00ean Li\u1ec7u&#8221; L\u00fd T\u01b0\u1edfng?\">C\u01a1 Ch\u1ebf Fenton: T\u1ea1i Sao FeCl2 L\u00e0 &#8220;Nguy\u00ean Li\u1ec7u&#8221; L\u00fd T\u01b0\u1edfng?<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Quy_Trinh_Ket_Hop_FeCl2_Keo_Tu_Fenton_Cho_Nuoc_Thai_Det_Nhuom\" title=\"Quy Tr\u00ecnh K\u1ebft H\u1ee3p FeCl2 Keo T\u1ee5 + Fenton Cho N\u01b0\u1edbc Th\u1ea3i D\u1ec7t Nhu\u1ed9m\">Quy Tr\u00ecnh K\u1ebft H\u1ee3p FeCl2 Keo T\u1ee5 + Fenton Cho N\u01b0\u1edbc Th\u1ea3i D\u1ec7t Nhu\u1ed9m<\/a><\/li>\n<\/ul>\n<\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Tinh_Toan_Chi_Phi_Thuc_Te_VND_2024%E2%80%932025\" title=\"T\u00ednh To\u00e1n Chi Ph\u00ed Th\u1ef1c T\u1ebf (VN\u0110 2024\u20132025)\">T\u00ednh To\u00e1n Chi Ph\u00ed Th\u1ef1c T\u1ebf (VN\u0110 2024\u20132025)<\/a>\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Bang_Gia_Tham_Khao_Tai_TPHCM\" title=\"B\u1ea3ng Gi\u00e1 Tham Kh\u1ea3o T\u1ea1i TP.HCM\">B\u1ea3ng Gi\u00e1 Tham Kh\u1ea3o T\u1ea1i TP.HCM<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Vi_Du_Tinh_Chi_Phi_Nha_May_XLNT_500_m%C2%B3Ngay\" title=\"V\u00ed D\u1ee5 T\u00ednh Chi Ph\u00ed: Nh\u00e0 M\u00e1y XLNT 500 m\u00b3\/Ng\u00e0y\">V\u00ed D\u1ee5 T\u00ednh Chi Ph\u00ed: Nh\u00e0 M\u00e1y XLNT 500 m\u00b3\/Ng\u00e0y<\/a><\/li>\n<\/ul>\n<\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Jar_Test_%E2%80%94_Cach_Xac_Dinh_Lieu_Toi_Uu_Tai_Co_So\" title=\"Jar Test \u2014 C\u00e1ch X\u00e1c \u0110\u1ecbnh Li\u1ec1u T\u1ed1i \u01afu T\u1ea1i C\u01a1 S\u1edf\">Jar Test \u2014 C\u00e1ch X\u00e1c \u0110\u1ecbnh Li\u1ec1u T\u1ed1i \u01afu T\u1ea1i C\u01a1 S\u1edf<\/a>\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Quy_Trinh_Jar_Test_6_Buoc\" title=\"Quy Tr\u00ecnh Jar Test 6 B\u01b0\u1edbc\">Quy Tr\u00ecnh Jar Test 6 B\u01b0\u1edbc<\/a><\/li>\n<\/ul>\n<\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Cac_Loi_Thuong_Gap_Khi_Dung_Hoa_Chat_Keo_Tu\" title=\"C\u00e1c L\u1ed7i Th\u01b0\u1eddng G\u1eb7p Khi D\u00f9ng H\u00f3a Ch\u1ea5t Keo T\u1ee5\">C\u00e1c L\u1ed7i Th\u01b0\u1eddng G\u1eb7p Khi D\u00f9ng H\u00f3a Ch\u1ea5t Keo T\u1ee5<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Tieu_Chuan_QCVN_Lien_Quan_%E2%80%94_Thong_So_Kiem_Soat_Sau_Keo_Tu\" title=\"Ti\u00eau Chu\u1ea9n QCVN Li\u00ean Quan \u2014 Th\u00f4ng S\u1ed1 Ki\u1ec3m So\u00e1t Sau Keo T\u1ee5\">Ti\u00eau Chu\u1ea9n QCVN Li\u00ean Quan \u2014 Th\u00f4ng S\u1ed1 Ki\u1ec3m So\u00e1t Sau Keo T\u1ee5<\/a>\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#QCVN_40_2011BTNMT_%E2%80%94_Nuoc_Thai_Cong_Nghiep\" title=\"QCVN 40:2011\/BTNMT \u2014 N\u01b0\u1edbc Th\u1ea3i C\u00f4ng Nghi\u1ec7p\">QCVN 40:2011\/BTNMT \u2014 N\u01b0\u1edbc Th\u1ea3i C\u00f4ng Nghi\u1ec7p<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#QCVN_01-1_2018BYT_%E2%80%94_Nuoc_Sinh_Hoat_Keo_Tu_Nuoc_Cap\" title=\"QCVN 01-1:2018\/BYT \u2014 N\u01b0\u1edbc Sinh Ho\u1ea1t (Keo T\u1ee5 N\u01b0\u1edbc C\u1ea5p)\">QCVN 01-1:2018\/BYT \u2014 N\u01b0\u1edbc Sinh Ho\u1ea1t (Keo T\u1ee5 N\u01b0\u1edbc C\u1ea5p)<\/a><\/li>\n<\/ul>\n<\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Decision_Tree_%E2%80%94_Khi_Nao_Chon_Loai_Nao\" title=\"Decision Tree \u2014 Khi N\u00e0o Ch\u1ecdn Lo\u1ea1i N\u00e0o?\">Decision Tree \u2014 Khi N\u00e0o Ch\u1ecdn Lo\u1ea1i N\u00e0o?<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#FAQ_%E2%80%94_10_Cau_Hoi_Thuong_Gap\" title=\"FAQ \u2014 10 C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p\">FAQ \u2014 10 C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p<\/a>\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#Mua_FeCl2_FeSO4_va_PAC_Tai_Loc_Thien\" title=\"Mua FeCl2, FeSO4 v\u00e0 PAC T\u1ea1i L\u1ed9c Thi\u00ean\">Mua FeCl2, FeSO4 v\u00e0 PAC T\u1ea1i L\u1ed9c Thi\u00ean<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/hoachatlocthien.com\/fecl2-vs-feso4-vs-pac\/#%F0%9F%93%8A_Thong_ke_bai_viet\" title=\"\ud83d\udcca Th\u1ed1ng k\u00ea b\u00e0i vi\u1ebft\">\ud83d\udcca Th\u1ed1ng k\u00ea b\u00e0i vi\u1ebft<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/nav>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Gioi_Thieu_Quyet_Dinh_Sai_Hoa_Chat_Keo_Tu_Co_The_Ton_Hang_Chuc_Trieu_Dong_Moi_Thang\"><\/span><span class=\"ez-toc-section\" id=\"Gioi_Thieu_Quyet_Dinh_Sai_Hoa_Chat_Keo_Tu_Co_The_Ton_Hang_Chuc_Trieu_Dong_Moi_Thang\"><\/span><span class=\"ez-toc-section\" id=\"Gioi_Thieu_Quyet_Dinh_Sai_Hoa_Chat_Keo_Tu_Co_The_Ton_Hang_Chuc_Trieu_Dong_Moi_Thang\"><\/span>Gi\u1edbi Thi\u1ec7u: Quy\u1ebft \u0110\u1ecbnh Sai H\u00f3a Ch\u1ea5t Keo T\u1ee5 C\u00f3 Th\u1ec3 T\u1ed1n H\u00e0ng Ch\u1ee5c Tri\u1ec7u \u0110\u1ed3ng M\u1ed7i Th\u00e1ng<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>T\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n l\u00e0 k\u1ef9 s\u01b0 v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i d\u1ec7t nhu\u1ed9m t\u1ea1i m\u1ed9t khu c\u00f4ng nghi\u1ec7p \u1edf B\u00ecnh D\u01b0\u01a1ng. Nh\u00e0 m\u00e1y \u0111ang d\u00f9ng PAC 17% v\u1edbi li\u1ec1u 80 mg\/L, chi ph\u00ed h\u00f3a ch\u1ea5t t\u00ednh ra h\u01a1n 45 tri\u1ec7u \u0111\u1ed3ng\/th\u00e1ng, nh\u01b0ng n\u01b0\u1edbc sau x\u1eed l\u00fd v\u1eabn c\u00f3 m\u00e0u v\u00e0ng n\u00e2u nh\u1ea1t kh\u00f4ng \u0111\u1ea1t c\u1ed9t B c\u1ee7a QCVN 40:2011. M\u1ed7i ng\u00e0y ch\u1edd \u0111\u1ee3i l\u00e0 th\u00eam nguy c\u01a1 ph\u1ea1t vi ph\u1ea1m m\u00f4i tr\u01b0\u1eddng v\u00e0 \u00e1p l\u1ef1c t\u1eeb ban qu\u1ea3n l\u00fd khu c\u00f4ng nghi\u1ec7p.<\/p>\n<p>V\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i \u1edf li\u1ec1u l\u01b0\u1ee3ng PAC \u2014 m\u00e0 \u1edf ch\u1ed7 b\u1ea1n \u0111ang d\u00f9ng sai lo\u1ea1i h\u00f3a ch\u1ea5t. PAC, d\u00f9 linh ho\u1ea1t v\u00e0 ph\u1ed5 bi\u1ebfn trong x\u1eed l\u00fd n\u01b0\u1edbc c\u1ea5p sinh ho\u1ea1t, v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng th\u1ec3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c m\u00e0u thu\u1ed1c nhu\u1ed9m reactive d\u1ea1ng h\u00f2a tan. \u0110\u00e2y l\u00e0 c\u00f4ng vi\u1ec7c c\u1ee7a FeCl2 k\u1ebft h\u1ee3p Fenton \u2014 v\u00e0 s\u1ef1 hi\u1ec3u bi\u1ebft n\u00e0y c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m 20\u201330 tri\u1ec7u \u0111\u1ed3ng\/th\u00e1ng trong khi c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u1ea7u ra.<\/p>\n<p>B\u00e0i vi\u1ebft n\u00e0y so s\u00e1nh to\u00e0n di\u1ec7n ba h\u00f3a ch\u1ea5t keo t\u1ee5 ph\u1ed5 bi\u1ebfn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam: <strong>FeCl2 (s\u1eaft(II) chloride)<\/strong>, <strong>FeSO4 (ph\u00e8n s\u1eaft\/ferrous sulfate)<\/strong> v\u00e0 <strong>PAC (Poly Aluminum Chloride)<\/strong> \u2014 t\u1eeb c\u01a1 ch\u1ebf h\u00f3a h\u1ecdc, hi\u1ec7u qu\u1ea3 th\u1ef1c t\u1ebf, \u0111\u1ebfn chi ph\u00ed b\u1eb1ng s\u1ed1 th\u1ef1c t\u1ebf t\u1ea1i TP.HCM n\u0103m 2024\u20132025.<\/p>\n<blockquote>\n<p>\n  <strong>Direct Answer<\/strong><br \/>\n  FeCl2 l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p ch\u1ee9a thu\u1ed1c nhu\u1ed9m, Cr6+, H\u2082S ho\u1eb7c c\u1ea7n k\u1ebft h\u1ee3p Fenton AOP. PAC ph\u00f9 h\u1ee3p nh\u1ea5t cho n\u01b0\u1edbc c\u1ea5p sinh ho\u1ea1t v\u00e0 n\u01b0\u1edbc th\u1ea3i \u0111\u00f4 th\u1ecb. FeSO4 l\u00e0 ph\u01b0\u01a1ng \u00e1n ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t cho h\u1ec7 th\u1ed1ng c\u00f4ng su\u1ea5t l\u1edbn kh\u00f4ng y\u00eau c\u1ea7u x\u1eed l\u00fd \u0111\u1eb7c bi\u1ec7t.\n<\/p>\n<\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Bang_So_Sanh_Tong_Quan_Ba_Hoa_Chat_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Bang_So_Sanh_Tong_Quan_Ba_Hoa_Chat_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Bang_So_Sanh_Tong_Quan_Ba_Hoa_Chat_Keo_Tu\"><\/span>B\u1ea3ng So S\u00e1nh T\u1ed5ng Quan Ba H\u00f3a Ch\u1ea5t Keo T\u1ee5<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Th\u00f4ng s\u1ed1<\/th>\n<th>FeCl2 (25\u201330%)<\/th>\n<th>FeSO4 (h\u1ea1t)<\/th>\n<th>PAC 17%<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>pH ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u01b0u<\/strong><\/td>\n<td>5.5\u20139.0 (keo t\u1ee5); 2.5\u20133.5 (Fenton)<\/td>\n<td>5.5\u20139.0<\/td>\n<td>4.5\u20138.5<\/td>\n<\/tr>\n<tr>\n<td><strong>T\u1ed1c \u0111\u1ed9 t\u1ea1o b\u00f4ng<\/strong><\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Ch\u1eadm\u2013Trung b\u00ecnh<\/td>\n<td>Nhanh nh\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td><strong>Tr\u1ecdng l\u01b0\u1ee3ng floc<\/strong><\/td>\n<td>N\u1eb7ng, l\u1eafng nhanh<\/td>\n<td>N\u1eb7ng, l\u1eafng trung b\u00ecnh<\/td>\n<td>Nh\u1eb9 h\u01a1n, c\u1ea7n polymer<\/td>\n<\/tr>\n<tr>\n<td><strong>L\u01b0\u1ee3ng b\u00f9n sinh ra<\/strong><\/td>\n<td>Nhi\u1ec1u<\/td>\n<td>Nhi\u1ec1u<\/td>\n<td>\u00cdt nh\u1ea5t (30\u201340% \u00edt h\u01a1n Fe)<\/td>\n<\/tr>\n<tr>\n<td><strong>Kh\u1eed Cr6+<\/strong><\/td>\n<td>\u2705 C\u00f3<\/td>\n<td>\u274c Kh\u00f4ng<\/td>\n<td>\u274c Kh\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td><strong>K\u1ebft t\u1ee7a sulfide (H\u2082S)<\/strong><\/td>\n<td>\u2705 C\u00f3<\/td>\n<td>\u274c Kh\u00f4ng<\/td>\n<td>\u274c Kh\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td><strong>Fenton AOP<\/strong><\/td>\n<td>\u2705 C\u00f3 (ch\u1ea5t kh\u1eed H\u2082O\u2082)<\/td>\n<td>\u274c Kh\u00f4ng<\/td>\n<td>\u274c Kh\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td><strong>X\u1eed l\u00fd n\u01b0\u1edbc c\u1ea5p<\/strong><\/td>\n<td>\u0110\u01b0\u1ee3c (h\u1ea1n ch\u1ebf)<\/td>\n<td>\u0110\u01b0\u1ee3c<\/td>\n<td>T\u1ed1t nh\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td><strong>Gi\u00e1<\/strong><\/td>\n<td colspan=\"3\" style=\"text-align:center\">Gi\u00e1 theo kh\u1ed1i l\u01b0\u1ee3ng &amp; khu v\u1ef1c giao h\u00e0ng \u2014 <strong>Li\u00ean h\u1ec7 <a href=\"tel:0979891929\">0979 89 19 29<\/a> \u0111\u1ec3 nh\u1eadn b\u00e1o gi\u00e1 th\u1ef1c t\u1ebf<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u1ee8ng d\u1ee5ng ch\u00ednh<\/strong><\/td>\n<td>Xi m\u1ea1, d\u1ec7t nhu\u1ed9m, Fenton<\/td>\n<td>N\u01b0\u1edbc th\u1ea3i \u0111\u00f4 th\u1ecb, phosphate<\/td>\n<td>N\u01b0\u1edbc c\u1ea5p, n\u01b0\u1edbc m\u1eb7t, DAF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Co_Che_Keo_Tu_%E2%80%94_Tai_Sao_Sat_Tot_Hon_Nhom_Trong_Nuoc_Thai_Cong_Nghiep\"><\/span><span class=\"ez-toc-section\" id=\"Co_Che_Keo_Tu_%E2%80%94_Tai_Sao_Sat_Tot_Hon_Nhom_Trong_Nuoc_Thai_Cong_Nghiep\"><\/span><span class=\"ez-toc-section\" id=\"Co_Che_Keo_Tu_%E2%80%94_Tai_Sao_Sat_Tot_Hon_Nhom_Trong_Nuoc_Thai_Cong_Nghiep\"><\/span>C\u01a1 Ch\u1ebf Keo T\u1ee5 \u2014 T\u1ea1i Sao S\u1eaft T\u1ed1t H\u01a1n Nh\u00f4m Trong N\u01b0\u1edbc Th\u1ea3i C\u00f4ng Nghi\u1ec7p?<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Muoi_Sat_Co_Che_Hai_Buoc_Fe%C2%B2%E2%81%BA_%E2%86%92_Fe%C2%B3%E2%81%BA_%E2%86%92_FeOH%E2%82%83\"><\/span><span class=\"ez-toc-section\" id=\"Muoi_Sat_Co_Che_Hai_Buoc_Fe%C2%B2%E2%81%BA_%E2%86%92_Fe%C2%B3%E2%81%BA_%E2%86%92_FeOH%E2%82%83\"><\/span><span class=\"ez-toc-section\" id=\"Muoi_Sat_Co_Che_Hai_Buoc_Fe%C2%B2%E2%81%BA_%E2%86%92_Fe%C2%B3%E2%81%BA_%E2%86%92_FeOH%E2%82%83\"><\/span>Mu\u1ed1i S\u1eaft: C\u01a1 Ch\u1ebf Hai B\u01b0\u1edbc Fe\u00b2\u207a \u2192 Fe\u00b3\u207a \u2192 Fe(OH)\u2083<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi FeCl2 hay FeSO4 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o n\u01b0\u1edbc th\u1ea3i, qu\u00e1 tr\u00ecnh x\u1ea3y ra theo chu\u1ed7i ph\u1ea3n \u1ee9ng:<\/p>\n<p><strong>B\u01b0\u1edbc 1 \u2014 Oxy h\u00f3a:<\/strong> Fe\u00b2\u207a b\u1ecb oxy h\u00f3a b\u1edfi DO (dissolved oxygen) trong n\u01b0\u1edbc:<\/p>\n<pre><code>4Fe\u00b2\u207a + O\u2082 + 8OH\u207b + 2H\u2082O \u2192 4Fe(OH)\u2083\u2193<\/code><\/pre>\n<p><strong>B\u01b0\u1edbc 2 \u2014 Th\u1ee7y ph\u00e2n:<\/strong> Fe\u00b3\u207a th\u1ee7y ph\u00e2n t\u1ea1o Fe(OH)\u2083 gel d\u1ea1ng keo:<\/p>\n<pre><code>Fe\u00b3\u207a + 3OH\u207b \u2192 Fe(OH)\u2083\u2193<\/code><\/pre>\n<p>Fe(OH)\u2083 c\u00f3 c\u1ea5u tr\u00fac b\u1ec1 m\u1eb7t t\u00edch \u0111i\u1ec7n d\u01b0\u01a1ng \u1edf pH 5\u20138, h\u1ea5p ph\u1ee5 m\u1ea1nh c\u00e1c h\u1ea1t keo t\u00edch \u0111i\u1ec7n \u00e2m (clay, protein, m\u00e0u thu\u1ed1c nhu\u1ed9m mang \u0111i\u1ec7n \u00e2m) theo c\u01a1 ch\u1ebf \u0111i\u1ec7n t\u00edch b\u1ec1 m\u1eb7t (surface charge neutralization) v\u00e0 c\u01a1 h\u1ecdc b\u1eaby l\u01b0\u1edbi (sweep flocculation).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"So_sanh_FeOH%E2%82%83_va_AlOH%E2%82%83\"><\/span><span class=\"ez-toc-section\" id=\"So_sanh_FeOH%E2%82%83_va_AlOH%E2%82%83\"><\/span><span class=\"ez-toc-section\" id=\"So_sanh_FeOH%E2%82%83_va_AlOH%E2%82%83\"><\/span>So s\u00e1nh Fe(OH)\u2083 v\u00e0 Al(OH)\u2083<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c t\u00ednh<\/th>\n<th>Fe(OH)\u2083<\/th>\n<th>Al(OH)\u2083<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>T\u1ef7 tr\u1ecdng floc<\/strong><\/td>\n<td>~3.5\u20134.0 g\/cm\u00b3<\/td>\n<td>~2.4\u20132.7 g\/cm\u00b3<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u00e0u s\u1eafc<\/strong><\/td>\n<td>N\u00e2u \u0111\u1ecf (d\u1ec5 quan s\u00e1t)<\/td>\n<td>Tr\u1eafng \u0111\u1ee5c<\/td>\n<\/tr>\n<tr>\n<td><strong>T\u1ed1c \u0111\u1ed9 l\u1eafng<\/strong><\/td>\n<td>0.5\u20132.0 mm\/s<\/td>\n<td>0.3\u20131.0 mm\/s<\/td>\n<\/tr>\n<tr>\n<td><strong>Hi\u1ec7u qu\u1ea3 trong n\u01b0\u1edbc \u0111\u1ee5c cao<\/strong><\/td>\n<td>T\u1ed1t h\u01a1n<\/td>\n<td>K\u00e9m h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td><strong>pH t\u1ed1i \u01b0u t\u1ea1o floc<\/strong><\/td>\n<td>6.5\u20138.0<\/td>\n<td>6.0\u20138.0<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1ed4n \u0111\u1ecbnh floc khi s\u1ed1c t\u1ea3i<\/strong><\/td>\n<td>T\u1ed1t<\/td>\n<td>Trung b\u00ecnh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Anh_Huong_pH_Den_Hieu_Qua_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Anh_Huong_pH_Den_Hieu_Qua_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Anh_Huong_pH_Den_Hieu_Qua_Keo_Tu\"><\/span>\u1ea2nh H\u01b0\u1edfng pH \u0110\u1ebfn Hi\u1ec7u Qu\u1ea3 Keo T\u1ee5<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>pH<\/th>\n<th>Hi\u1ec7u qu\u1ea3 FeCl2<\/th>\n<th>Hi\u1ec7u qu\u1ea3 FeSO4<\/th>\n<th>Hi\u1ec7u qu\u1ea3 PAC<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>&lt; 4.0<\/td>\n<td>K\u00e9m (Fe\u00b3\u207a h\u00f2a tan)<\/td>\n<td>K\u00e9m<\/td>\n<td>K\u00e9m<\/td>\n<\/tr>\n<tr>\n<td>4.0\u20135.0<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>K\u00e9m<\/td>\n<td>Trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>5.0\u20136.5<\/td>\n<td>T\u1ed1t<\/td>\n<td>T\u1ed1t<\/td>\n<td>T\u1ed1t<\/td>\n<\/tr>\n<tr>\n<td>6.5\u20137.5<\/td>\n<td><strong>T\u1ed1t nh\u1ea5t<\/strong><\/td>\n<td><strong>T\u1ed1t nh\u1ea5t<\/strong><\/td>\n<td><strong>T\u1ed1t nh\u1ea5t<\/strong><\/td>\n<\/tr>\n<tr>\n<td>7.5\u20138.5<\/td>\n<td>T\u1ed1t<\/td>\n<td>T\u1ed1t<\/td>\n<td>T\u1ed1t<\/td>\n<\/tr>\n<tr>\n<td>8.5\u20139.5<\/td>\n<td>Gi\u1ea3m d\u1ea7n<\/td>\n<td>Gi\u1ea3m d\u1ea7n<\/td>\n<td>K\u00e9m (re-dissolve)<\/td>\n<\/tr>\n<tr>\n<td>&gt; 9.5<\/td>\n<td>K\u00e9m<\/td>\n<td>K\u00e9m<\/td>\n<td>R\u1ea5t k\u00e9m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p>\n  <strong>Direct Answer<\/strong><br \/>\n  Mu\u1ed1i s\u1eaft (FeCl2, FeSO4) t\u1ea1o floc Fe(OH)\u2083 n\u1eb7ng h\u01a1n v\u00e0 l\u1eafng nhanh h\u01a1n Al(OH)\u2083 t\u1eeb PAC kho\u1ea3ng 50%, ph\u00f9 h\u1ee3p h\u01a1n cho n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p \u0111\u1ee5c cao. Ngo\u00e0i ra, ch\u1ec9 mu\u1ed1i s\u1eaft m\u1edbi c\u00f3 kh\u1ea3 n\u0103ng kh\u1eed Cr6+, k\u1ebft t\u1ee7a sulfide v\u00e0 h\u1ed7 tr\u1ee3 ph\u1ea3n \u1ee9ng Fenton \u2014 nh\u1eefng t\u00ednh n\u0103ng ho\u00e0n to\u00e0n v\u1eafng m\u1eb7t trong PAC.\n<\/p>\n<\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"FeCl2_Trong_Xu_Ly_Nuoc_Thai_Det_Nhuom_%E2%80%94_Tai_Sao_Ket_Hop_Fenton\"><\/span><span class=\"ez-toc-section\" id=\"FeCl2_Trong_Xu_Ly_Nuoc_Thai_Det_Nhuom_%E2%80%94_Tai_Sao_Ket_Hop_Fenton\"><\/span><span class=\"ez-toc-section\" id=\"FeCl2_Trong_Xu_Ly_Nuoc_Thai_Det_Nhuom_%E2%80%94_Tai_Sao_Ket_Hop_Fenton\"><\/span>FeCl2 Trong X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i D\u1ec7t Nhu\u1ed9m \u2014 T\u1ea1i Sao K\u1ebft H\u1ee3p Fenton?<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Phan_Loai_Thuoc_Nhuom_va_Hieu_Qua_Xu_Ly\"><\/span><span class=\"ez-toc-section\" id=\"Phan_Loai_Thuoc_Nhuom_va_Hieu_Qua_Xu_Ly\"><\/span><span class=\"ez-toc-section\" id=\"Phan_Loai_Thuoc_Nhuom_va_Hieu_Qua_Xu_Ly\"><\/span>Ph\u00e2n Lo\u1ea1i Thu\u1ed1c Nhu\u1ed9m v\u00e0 Hi\u1ec7u Qu\u1ea3 X\u1eed L\u00fd<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i thu\u1ed1c nhu\u1ed9m<\/th>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>PAC \u0111\u01a1n \u0111\u1ed9c<\/th>\n<th>FeCl2 keo t\u1ee5<\/th>\n<th>FeCl2 + Fenton<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Reactive (ho\u1ea1t t\u00ednh)<\/strong><\/td>\n<td>H\u00f2a tan ho\u00e0n to\u00e0n, mang \u0111i\u1ec7n \u00e2m<\/td>\n<td>20\u201340%<\/td>\n<td>50\u201365%<\/td>\n<td>85\u201398%<\/td>\n<\/tr>\n<tr>\n<td><strong>Disperse (ph\u00e2n t\u00e1n)<\/strong><\/td>\n<td>D\u1ea1ng h\u1ea1t nano kh\u00f4ng tan<\/td>\n<td>70\u201385%<\/td>\n<td>70\u201385%<\/td>\n<td>90\u201398%<\/td>\n<\/tr>\n<tr>\n<td><strong>Acid<\/strong><\/td>\n<td>H\u00f2a tan, mang \u0111i\u1ec7n \u00e2m<\/td>\n<td>30\u201350%<\/td>\n<td>55\u201370%<\/td>\n<td>85\u201395%<\/td>\n<\/tr>\n<tr>\n<td><strong>Direct (tr\u1ef1c ti\u1ebfp)<\/strong><\/td>\n<td>H\u00f2a tan, ph\u00e2n t\u1eed l\u1edbn<\/td>\n<td>40\u201360%<\/td>\n<td>60\u201375%<\/td>\n<td>85\u201395%<\/td>\n<\/tr>\n<tr>\n<td><strong>Vat (ho\u00e0n nguy\u00ean)<\/strong><\/td>\n<td>\u00cdt tan, c\u1ea7n ki\u1ec1m<\/td>\n<td>60\u201375%<\/td>\n<td>65\u201380%<\/td>\n<td>88\u201395%<\/td>\n<\/tr>\n<tr>\n<td><strong>Cationic (baz\u01a1)<\/strong><\/td>\n<td>H\u00f2a tan, mang \u0111i\u1ec7n d\u01b0\u01a1ng<\/td>\n<td>55\u201370%<\/td>\n<td>50\u201365%<\/td>\n<td>80\u201392%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Hi\u1ec7u su\u1ea5t kh\u1eed m\u00e0u (%) \u1edf \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u m\u1ed7i ph\u01b0\u01a1ng ph\u00e1p.<\/em><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Co_Che_Fenton_Tai_Sao_FeCl2_La_%E2%80%9CNguyen_Lieu%E2%80%9D_Ly_Tuong\"><\/span><span class=\"ez-toc-section\" id=\"Co_Che_Fenton_Tai_Sao_FeCl2_La_%E2%80%9CNguyen_Lieu%E2%80%9D_Ly_Tuong\"><\/span><span class=\"ez-toc-section\" id=\"Co_Che_Fenton_Tai_Sao_FeCl2_La_%E2%80%9CNguyen_Lieu%E2%80%9D_Ly_Tuong\"><\/span>C\u01a1 Ch\u1ebf Fenton: T\u1ea1i Sao FeCl2 L\u00e0 &#8220;Nguy\u00ean Li\u1ec7u&#8221; L\u00fd T\u01b0\u1edfng?<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ph\u1ea3n \u1ee9ng Fenton s\u1eed d\u1ee5ng Fe\u00b2\u207a l\u00e0m x\u00fac t\u00e1c ph\u00e2n h\u1ee7y H\u2082O\u2082 sinh ra g\u1ed1c hydroxyl (\u2022OH) c\u1ef1c m\u1ea1nh:<\/p>\n<pre><code>Fe\u00b2\u207a + H\u2082O\u2082 \u2192 Fe\u00b3\u207a + \u2022OH + OH\u207b     (ph\u1ea3n \u1ee9ng Fenton c\u1ed5 \u0111i\u1ec3n)\nFe\u00b3\u207a + H\u2082O\u2082 \u2192 Fe\u00b2\u207a + \u2022OOH + H\u207a     (t\u00e1i sinh Fe\u00b2\u207a \u2014 Fenton-like)<\/code><\/pre>\n<p>G\u1ed1c \u2022OH c\u00f3 th\u1ebf oxy h\u00f3a E\u00b0 = +2.73V, ch\u1ec9 sau fluorine, \u0111\u1ee7 \u0111\u1ec3 ph\u00e1 v\u1ee1 v\u00f2ng th\u01a1m c\u1ee7a thu\u1ed1c nhu\u1ed9m azo v\u00e0 anthraquinone.<\/p>\n<p><strong>\u0110i\u1ec1u ki\u1ec7n Fenton t\u1ed1i \u01b0u:<\/strong><\/p>\n<ul>\n<li>pH: 2.5\u20133.5 (cao h\u01a1n th\u00ec Fe\u00b3\u207a k\u1ebft t\u1ee7a s\u1edbm, l\u00e0m m\u1ea5t x\u00fac t\u00e1c)<\/li>\n<li>T\u1ef7 l\u1ec7 Fe\u00b2\u207a\/H\u2082O\u2082: 1:5 \u0111\u1ebfn 1:20 (mol) t\u00f9y \u0111\u1eb7c \u0111i\u1ec3m n\u01b0\u1edbc th\u1ea3i<\/li>\n<li>Th\u1eddi gian ph\u1ea3n \u1ee9ng: 30\u201360 ph\u00fat<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Quy_Trinh_Ket_Hop_FeCl2_Keo_Tu_Fenton_Cho_Nuoc_Thai_Det_Nhuom\"><\/span><span class=\"ez-toc-section\" id=\"Quy_Trinh_Ket_Hop_FeCl2_Keo_Tu_Fenton_Cho_Nuoc_Thai_Det_Nhuom\"><\/span><span class=\"ez-toc-section\" id=\"Quy_Trinh_Ket_Hop_FeCl2_Keo_Tu_Fenton_Cho_Nuoc_Thai_Det_Nhuom\"><\/span>Quy Tr\u00ecnh K\u1ebft H\u1ee3p FeCl2 Keo T\u1ee5 + Fenton Cho N\u01b0\u1edbc Th\u1ea3i D\u1ec7t Nhu\u1ed9m<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre><code>[N\u01b0\u1edbc th\u1ea3i d\u1ec7t nhu\u1ed9m]\n        \u2193\n[B\u1ec3 \u0111i\u1ec1u h\u00f2a + song ch\u1eafn r\u00e1c]\n        \u2193\n[B\u1ec3 Fenton \u2014 pH 2.5\u20133.5]\n  Th\u00eam FeCl2: 50\u2013150 mg\/L (t\u00ednh theo Fe\u00b2\u207a)\n  Th\u00eam H\u2082O\u2082: 200\u2013500 mg\/L\n  Khu\u1ea5y nhanh 10 ph\u00fat \u2192 khu\u1ea5y ch\u1eadm 30\u201345 ph\u00fat\n        \u2193\n[N\u00e2ng pH l\u00ean 7.0\u20138.0 b\u1eb1ng NaOH ho\u1eb7c Ca(OH)\u2082]\n  \u2192 Fe\u00b3\u207a \u2192 Fe(OH)\u2083 floc (keo t\u1ee5 \u0111\u1ed3ng th\u1eddi)\n        \u2193\n[B\u1ec3 l\u1eafng s\u01a1 c\u1ea5p \u2014 2\u20134 gi\u1edd HRT]\n  B\u00f9n Fe(OH)\u2083 + ch\u1ea5t h\u1eefu c\u01a1 \u0111\u00e3 oxy h\u00f3a \u2192 \u00e9p b\u00f9n\n        \u2193\n[B\u1ec3 keo t\u1ee5 b\u1ed5 sung PAC n\u1ebfu c\u1ea7n \u2014 pH 6.5\u20137.5]\n  PAC: 20\u201340 mg\/L + polymer anionic 1\u20133 mg\/L\n        \u2193\n[B\u1ec3 l\u1eafng th\u1ee9 c\u1ea5p]\n        \u2193\n[H\u1ec7 th\u1ed1ng sinh h\u1ecdc (aerobic\/anoxic) n\u1ebfu c\u1ea7n COD]\n        \u2193\n[N\u01b0\u1edbc sau x\u1eed l\u00fd \u2014 ki\u1ec3m tra QCVN 40:2011]<\/code><\/pre>\n<blockquote>\n<p>\n  <strong>Direct Answer<\/strong><br \/>\n  \u0110\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i d\u1ec7t nhu\u1ed9m \u0111\u1ea1t QCVN 40:2011, c\u1ea7n k\u1ebft h\u1ee3p FeCl2 + H\u2082O\u2082 (Fenton) \u1edf pH 2.5\u20133.5 \u0111\u1ec3 ph\u00e1 v\u1ee1 m\u00e0u thu\u1ed1c nhu\u1ed9m reactive d\u1ea1ng h\u00f2a tan, sau \u0111\u00f3 n\u00e2ng pH \u0111\u1ec3 keo t\u1ee5 b\u00f9n. PAC \u0111\u01a1n \u0111\u1ed9c ch\u1ec9 x\u1eed l\u00fd \u0111\u01b0\u1ee3c d\u01b0\u1edbi 40% m\u00e0u reactive \u2014 kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ea1t chu\u1ea9n x\u1ea3 th\u1ea3i.\n<\/p>\n<\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Tinh_Toan_Chi_Phi_Thuc_Te_VND_2024%E2%80%932025\"><\/span><span class=\"ez-toc-section\" id=\"Tinh_Toan_Chi_Phi_Thuc_Te_VND_2024%E2%80%932025\"><\/span><span class=\"ez-toc-section\" id=\"Tinh_Toan_Chi_Phi_Thuc_Te_VND_2024%E2%80%932025\"><\/span>T\u00ednh To\u00e1n Chi Ph\u00ed Th\u1ef1c T\u1ebf (VN\u0110 2024\u20132025)<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Bang_Gia_Tham_Khao_Tai_TPHCM\"><\/span><span class=\"ez-toc-section\" id=\"Bang_Gia_Tham_Khao_Tai_TPHCM\"><\/span><span class=\"ez-toc-section\" id=\"Bang_Gia_Tham_Khao_Tai_TPHCM\"><\/span>B\u1ea3ng Gi\u00e1 Tham Kh\u1ea3o T\u1ea1i TP.HCM<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<blockquote>\n<p>\ud83d\udcac <strong>Gi\u00e1 h\u00f3a ch\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o kh\u1ed1i l\u01b0\u1ee3ng, quy c\u00e1ch \u0111\u00f3ng g\u00f3i v\u00e0 khu v\u1ef1c giao h\u00e0ng.<\/strong><br \/>\nLi\u00ean h\u1ec7 tr\u1ef1c ti\u1ebfp \u0111\u1ec3 nh\u1eadn b\u00e1o gi\u00e1 th\u1ef1c t\u1ebf v\u00e0 t\u01b0 v\u1ea5n ph\u01b0\u01a1ng \u00e1n ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t cho h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n:<\/p>\n<p>\ud83d\udcde <strong><a href=\"tel:0979891929\">0979 89 19 29<\/a><\/strong> &nbsp;|&nbsp; \u2709\ufe0f <a href=\"mailto:sales@locthien.vn\">sales@locthien.vn<\/a><\/p>\n<\/blockquote>\n<p><em>Gi\u00e1 ch\u01b0a bao g\u1ed3m VAT, v\u1eadn chuy\u1ec3n v\u00e0 bi\u1ebfn \u0111\u1ed9ng theo th\u1ecb tr\u01b0\u1eddng. C\u1eadp nh\u1eadt Q4\/2024.<\/em><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_Du_Tinh_Chi_Phi_Nha_May_XLNT_500_m%C2%B3Ngay\"><\/span><span class=\"ez-toc-section\" id=\"Vi_Du_Tinh_Chi_Phi_Nha_May_XLNT_500_m%C2%B3Ngay\"><\/span><span class=\"ez-toc-section\" id=\"Vi_Du_Tinh_Chi_Phi_Nha_May_XLNT_500_m%C2%B3Ngay\"><\/span>V\u00ed D\u1ee5 T\u00ednh Chi Ph\u00ed: Nh\u00e0 M\u00e1y XLNT 500 m\u00b3\/Ng\u00e0y<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>Ph\u01b0\u01a1ng \u00e1n<\/th>\n<th>Chi ph\u00ed h\u00f3a ch\u1ea5t\/th\u00e1ng<\/th>\n<th>Chi ph\u00ed b\u00f9n \u00e9p (\u01b0\u1edbc t\u00ednh)<\/th>\n<th>T\u1ed5ng \u01b0\u1edbc t\u00ednh\/th\u00e1ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>FeCl2 30%<\/td>\n<td>4.500.000 \u0111<\/td>\n<td>800.000 \u0111 (b\u00f9n nhi\u1ec1u)<\/td>\n<td>~5.300.000 \u0111<\/td>\n<\/tr>\n<tr>\n<td>FeSO4 h\u1ea1t<\/td>\n<td>4.200.000 \u0111<\/td>\n<td>900.000 \u0111 (b\u00f9n nhi\u1ec1u)<\/td>\n<td>~5.600.000 \u0111<\/td>\n<\/tr>\n<tr>\n<td>PAC 17%<\/td>\n<td>3.825.000 \u0111<\/td>\n<td>500.000 \u0111 (b\u00f9n \u00edt h\u01a1n)<\/td>\n<td>~4.325.000 \u0111<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>K\u1ebft lu\u1eadn:<\/strong> V\u1edbi n\u01b0\u1edbc th\u1ea3i kh\u00f4ng c\u00f3 Cr6+, H\u2082S hay nhu c\u1ea7u Fenton \u2014 PAC 17% c\u00f3 chi ph\u00ed t\u1ed5ng th\u1ec3 th\u1ea5p nh\u1ea5t do l\u01b0\u1ee3ng b\u00f9n sinh ra \u00edt h\u01a1n \u0111\u00e1ng k\u1ec3. Tuy nhi\u00ean, n\u1ebfu n\u01b0\u1edbc th\u1ea3i c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1eb7c bi\u1ec7t (m\u00e0u, Cr6+, m\u00f9i), FeCl2 v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn kh\u00f4ng th\u1ec3 thay th\u1ebf b\u1ea5t ch\u1ea5p chi ph\u00ed.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Jar_Test_%E2%80%94_Cach_Xac_Dinh_Lieu_Toi_Uu_Tai_Co_So\"><\/span><span class=\"ez-toc-section\" id=\"Jar_Test_%E2%80%94_Cach_Xac_Dinh_Lieu_Toi_Uu_Tai_Co_So\"><\/span><span class=\"ez-toc-section\" id=\"Jar_Test_%E2%80%94_Cach_Xac_Dinh_Lieu_Toi_Uu_Tai_Co_So\"><\/span>Jar Test \u2014 C\u00e1ch X\u00e1c \u0110\u1ecbnh Li\u1ec1u T\u1ed1i \u01afu T\u1ea1i C\u01a1 S\u1edf<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhi\u1ec1u k\u1ef9 s\u01b0 v\u1eadn h\u00e0nh b\u1ecf qua b\u01b0\u1edbc jar test v\u00e0 d\u00f9ng li\u1ec1u &#8220;m\u1eb7c \u0111\u1ecbnh&#8221; t\u1eeb nh\u00e0 cung c\u1ea5p ho\u1eb7c kinh nghi\u1ec7m d\u1ef1 \u00e1n tr\u01b0\u1edbc \u2014 \u0111\u00e2y l\u00e0 sai l\u1ea7m t\u1ed1n k\u00e9m. N\u01b0\u1edbc th\u1ea3i t\u1eeb c\u00f9ng m\u1ed9t nh\u00e0 m\u00e1y c\u00f3 th\u1ec3 thay \u0111\u1ed5i li\u1ec1u keo t\u1ee5 t\u1ed1i \u01b0u t\u1edbi 2\u20133 l\u1ea7n gi\u1eefa m\u00f9a m\u01b0a v\u00e0 m\u00f9a kh\u00f4, hay khi nh\u00e0 m\u00e1y thay \u0111\u1ed5i nguy\u00ean li\u1ec7u.<\/p>\n<p>Jar test th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch gi\u00fap: x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c li\u1ec1u h\u00f3a ch\u1ea5t t\u1ed1i \u01b0u (ti\u1ebft ki\u1ec7m 15\u201330% chi ph\u00ed), so s\u00e1nh hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c lo\u1ea1i h\u00f3a ch\u1ea5t tr\u00ean c\u00f9ng m\u1eabu n\u01b0\u1edbc th\u1ea3i, x\u00e1c \u0111\u1ecbnh pH t\u1ed1i \u01b0u v\u00e0 \u0111\u00e1nh gi\u00e1 nhu c\u1ea7u polymer.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quy_Trinh_Jar_Test_6_Buoc\"><\/span><span class=\"ez-toc-section\" id=\"Quy_Trinh_Jar_Test_6_Buoc\"><\/span><span class=\"ez-toc-section\" id=\"Quy_Trinh_Jar_Test_6_Buoc\"><\/span>Quy Tr\u00ecnh Jar Test 6 B\u01b0\u1edbc<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><strong>L\u1ea5y m\u1eabu \u0111\u1ea1i di\u1ec7n:<\/strong> L\u1ea5y 6\u20138 l\u00edt n\u01b0\u1edbc th\u1ea3i \u0111\u1ea7u v\u00e0o b\u1ec3 keo t\u1ee5. \u0110o pH, turbidity, TSS v\u00e0 \u0111\u1ed9 m\u00e0u ban \u0111\u1ea7u.<\/li>\n<li><strong>Thi\u1ebft l\u1eadp d\u00e3y li\u1ec1u:<\/strong> \u0110\u1ed5 1L v\u00e0o m\u1ed7i c\u1ed1c. Thi\u1ebft l\u1eadp d\u00e3y li\u1ec1u v\u00ed d\u1ee5 v\u1edbi FeCl2 dung d\u1ecbch 1%: 20, 40, 60, 80, 100, 120 mg\/L. \u0110i\u1ec1u ch\u1ec9nh pH v\u1ec1 6.5\u20137.5 n\u1ebfu c\u1ea7n.<\/li>\n<li><strong>Khu\u1ea5y nhanh (rapid mix):<\/strong> 150\u2013200 rpm trong 1\u20132 ph\u00fat ngay sau khi th\u00eam h\u00f3a ch\u1ea5t.<\/li>\n<li><strong>Khu\u1ea5y ch\u1eadm (slow mix\/flocculation):<\/strong> 30\u201350 rpm trong 15\u201320 ph\u00fat. Quan s\u00e1t s\u1ef1 h\u00ecnh th\u00e0nh floc.<\/li>\n<li><strong>L\u1eafng (settling):<\/strong> D\u1eebng khu\u1ea5y, l\u1eafng 20\u201330 ph\u00fat. Quan s\u00e1t ranh gi\u1edbi b\u00f9n-n\u01b0\u1edbc.<\/li>\n<li><strong>\u0110o v\u00e0 \u0111\u00e1nh gi\u00e1:<\/strong> H\u00fat n\u01b0\u1edbc ph\u00eda tr\u00ean \u0111o turbidity, pH, \u0111\u1ed9 m\u00e0u. Li\u1ec1u t\u1ed1i \u01b0u = \u0111\u1ea1t k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t v\u1edbi chi ph\u00ed th\u1ea5p nh\u1ea5t.<\/li>\n<\/ol>\n<blockquote>\n<p>\n  <strong>L\u01b0u \u00fd th\u1ef1c h\u00e0nh<\/strong><br \/>\n  N\u1ebfu t\u0103ng li\u1ec1u nh\u01b0ng k\u1ebft qu\u1ea3 kh\u00f4ng c\u1ea3i thi\u1ec7n ho\u1eb7c x\u1ea5u h\u01a1n, b\u1ea1n \u0111\u00e3 qua li\u1ec1u t\u1ed1i \u01b0u \u2014 hi\u1ec7n t\u01b0\u1ee3ng &#8220;over-dosing&#8221; l\u00e0m \u0111\u1ea3o \u0111i\u1ec7n t\u00edch keo. \u0110\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u c\u1ea7n gi\u1ea3m li\u1ec1u.\n<\/p>\n<\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Cac_Loi_Thuong_Gap_Khi_Dung_Hoa_Chat_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Cac_Loi_Thuong_Gap_Khi_Dung_Hoa_Chat_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Cac_Loi_Thuong_Gap_Khi_Dung_Hoa_Chat_Keo_Tu\"><\/span>C\u00e1c L\u1ed7i Th\u01b0\u1eddng G\u1eb7p Khi D\u00f9ng H\u00f3a Ch\u1ea5t Keo T\u1ee5<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>#<\/th>\n<th>L\u1ed7i<\/th>\n<th>Tri\u1ec7u ch\u1ee9ng<\/th>\n<th>Nguy\u00ean nh\u00e2n<\/th>\n<th>C\u00e1ch kh\u1eafc ph\u1ee5c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td><strong>Li\u1ec1u qu\u00e1 th\u1ea5p<\/strong><\/td>\n<td>N\u01b0\u1edbc sau l\u1eafng v\u1eabn \u0111\u1ee5c<\/td>\n<td>Ch\u01b0a \u0111\u1ee7 h\u00f3a ch\u1ea5t trung h\u00f2a \u0111i\u1ec7n t\u00edch keo<\/td>\n<td>T\u0103ng li\u1ec1u t\u1eebng b\u01b0\u1edbc 10\u201320%, theo d\u00f5i turbidity<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td><strong>Li\u1ec1u qu\u00e1 cao<\/strong><\/td>\n<td>Floc nh\u1ecf li ti kh\u00f4ng l\u1eafng<\/td>\n<td>\u0110\u1ea3o \u0111i\u1ec7n t\u00edch keo (charge reversal)<\/td>\n<td>Gi\u1ea3m li\u1ec1u v\u1ec1 d\u01b0\u1edbi li\u1ec1u t\u1ed1i \u01b0u t\u1eeb jar test<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td><strong>pH sai range<\/strong><\/td>\n<td>Floc kh\u00f4ng h\u00ecnh th\u00e0nh<\/td>\n<td>pH ngo\u00e0i kho\u1ea3ng 5.5\u20138.5<\/td>\n<td>\u0110i\u1ec1u ch\u1ec9nh pH b\u1eb1ng NaOH ho\u1eb7c HCl tr\u01b0\u1edbc khi th\u00eam h\u00f3a ch\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td><strong>Th\u1ee9 t\u1ef1 h\u00f3a ch\u1ea5t sai<\/strong><\/td>\n<td>Hi\u1ec7u qu\u1ea3 th\u1ea5p b\u1ea5t th\u01b0\u1eddng<\/td>\n<td>Th\u00eam polymer tr\u01b0\u1edbc keo t\u1ee5<\/td>\n<td>\u0110\u00fang: pH \u0111i\u1ec1u ch\u1ec9nh \u2192 keo t\u1ee5 \u2192 polymer<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td><strong>FeCl2 \u0111\u00e3 oxy h\u00f3a<\/strong><\/td>\n<td>M\u00e0u v\u00e0ng n\u00e2u, Fenton b\u1eb1ng 0<\/td>\n<td>Ti\u1ebfp x\u00fac O\u2082 l\u00e2u ng\u00e0y, b\u1ea3o qu\u1ea3n sai<\/td>\n<td>FeCl2 \u0111\u00fang ph\u1ea3i m\u00e0u xanh l\u00e1 nh\u1ea1t; ki\u1ec3m tra tr\u01b0\u1edbc d\u00f9ng<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td><strong>Khu\u1ea5y nhanh qu\u00e1 ng\u1eafn<\/strong><\/td>\n<td>Hi\u1ec7u qu\u1ea3 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t<\/td>\n<td>\u0110i\u1ec3m ch\u00e2m kh\u00f4ng t\u1ed1t<\/td>\n<td>Ch\u00e2m h\u00f3a ch\u1ea5t t\u1ea1i v\u00f9ng khu\u1ea5y m\u1ea1nh nh\u1ea5t (\u0111\u1ea7u impeller)<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td><strong>Th\u1eddi gian l\u1eafng kh\u00f4ng \u0111\u1ee7<\/strong><\/td>\n<td>TSS \u0111\u1ea7u ra cao b\u1ea5t th\u01b0\u1eddng<\/td>\n<td>HRT b\u1ec3 l\u1eafng thi\u1ebfu<\/td>\n<td>T\u0103ng HRT, ki\u1ec3m tra c\u01a1 c\u00e0o b\u00f9n<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td><strong>B\u1ea3o qu\u1ea3n FeCl2 sai<\/strong><\/td>\n<td>G\u1ec9 s\u00e9t b\u1ed3n, m\u1ea5t t\u00e1c d\u1ee5ng<\/td>\n<td>B\u1ed3n th\u00e9p kh\u00f4ng c\u00f3 l\u1edbp b\u1ea3o v\u1ec7<\/td>\n<td>D\u00f9ng b\u1ed3n HDPE ho\u1eb7c FRP cho FeCl2<\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td><strong>Polymer kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/strong><\/td>\n<td>Floc nh\u1ecf, b\u00f9n lo\u00e3ng<\/td>\n<td>D\u00f9ng polymer cationic v\u1edbi FeCl2<\/td>\n<td>Th\u1eed polymer anionic ho\u1eb7c non-ionic<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td><strong>Li\u1ec1u c\u1ed1 \u0111\u1ecbnh theo m\u00f9a<\/strong><\/td>\n<td>Chi ph\u00ed t\u0103ng ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea3m<\/td>\n<td>Kh\u00f4ng \u0111i\u1ec1u ch\u1ec9nh theo thay \u0111\u1ed5i t\u1ea3i tr\u1ecdng<\/td>\n<td>Jar test l\u1ea1i khi turbidity\/COD thay \u0111\u1ed5i &gt;20%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Tieu_Chuan_QCVN_Lien_Quan_%E2%80%94_Thong_So_Kiem_Soat_Sau_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Tieu_Chuan_QCVN_Lien_Quan_%E2%80%94_Thong_So_Kiem_Soat_Sau_Keo_Tu\"><\/span><span class=\"ez-toc-section\" id=\"Tieu_Chuan_QCVN_Lien_Quan_%E2%80%94_Thong_So_Kiem_Soat_Sau_Keo_Tu\"><\/span>Ti\u00eau Chu\u1ea9n QCVN Li\u00ean Quan \u2014 Th\u00f4ng S\u1ed1 Ki\u1ec3m So\u00e1t Sau Keo T\u1ee5<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"QCVN_40_2011BTNMT_%E2%80%94_Nuoc_Thai_Cong_Nghiep\"><\/span><span class=\"ez-toc-section\" id=\"QCVN_40_2011BTNMT_%E2%80%94_Nuoc_Thai_Cong_Nghiep\"><\/span><span class=\"ez-toc-section\" id=\"QCVN_40_2011BTNMT_%E2%80%94_Nuoc_Thai_Cong_Nghiep\"><\/span>QCVN 40:2011\/BTNMT \u2014 N\u01b0\u1edbc Th\u1ea3i C\u00f4ng Nghi\u1ec7p<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>Th\u00f4ng s\u1ed1<\/th>\n<th>C\u1ed9t A<\/th>\n<th>C\u1ed9t B<\/th>\n<th>Li\u00ean quan \u0111\u1ebfn keo t\u1ee5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>pH<\/strong><\/td>\n<td>6\u20139<\/td>\n<td>5.5\u20139<\/td>\n<td>Ki\u1ec3m so\u00e1t hi\u1ec7u qu\u1ea3 keo t\u1ee5<\/td>\n<\/tr>\n<tr>\n<td><strong>TSS<\/strong><\/td>\n<td>50 mg\/L<\/td>\n<td>100 mg\/L<\/td>\n<td>Ch\u1ec9 ti\u00eau ch\u00ednh sau l\u1eafng<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed9 m\u00e0u<\/strong><\/td>\n<td>20 Pt-Co<\/td>\n<td>70 Pt-Co<\/td>\n<td>D\u1ec7t nhu\u1ed9m, gi\u1ea5y, th\u1ef1c ph\u1ea9m<\/td>\n<\/tr>\n<tr>\n<td><strong>T\u1ed5ng Fe<\/strong><\/td>\n<td>1 mg\/L<\/td>\n<td>5 mg\/L<\/td>\n<td>Ki\u1ec3m so\u00e1t d\u01b0 Fe\u00b3\u207a khi d\u00f9ng FeCl2\/FeSO4<\/td>\n<\/tr>\n<tr>\n<td><strong>Cr6+<\/strong><\/td>\n<td>0.05 mg\/L<\/td>\n<td>0.1 mg\/L<\/td>\n<td>FeCl2 kh\u1eed v\u1ec1 Cr3+<\/td>\n<\/tr>\n<tr>\n<td><strong>Phosphate (PO\u2084\u00b3\u207b)<\/strong><\/td>\n<td>4 mg\/L<\/td>\n<td>6 mg\/L<\/td>\n<td>FeSO4\/FeCl2 k\u1ebft t\u1ee7a hi\u1ec7u qu\u1ea3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"QCVN_01-1_2018BYT_%E2%80%94_Nuoc_Sinh_Hoat_Keo_Tu_Nuoc_Cap\"><\/span><span class=\"ez-toc-section\" id=\"QCVN_01-1_2018BYT_%E2%80%94_Nuoc_Sinh_Hoat_Keo_Tu_Nuoc_Cap\"><\/span><span class=\"ez-toc-section\" id=\"QCVN_01-1_2018BYT_%E2%80%94_Nuoc_Sinh_Hoat_Keo_Tu_Nuoc_Cap\"><\/span>QCVN 01-1:2018\/BYT \u2014 N\u01b0\u1edbc Sinh Ho\u1ea1t (Keo T\u1ee5 N\u01b0\u1edbc C\u1ea5p)<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>Th\u00f4ng s\u1ed1<\/th>\n<th>Gi\u1edbi h\u1ea1n<\/th>\n<th>Ghi ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u0110\u1ed9 \u0111\u1ee5c<\/strong><\/td>\n<td>\u2264 2 NTU<\/td>\n<td>M\u1ee5c ti\u00eau sau keo t\u1ee5 + l\u1ecdc<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed9 m\u00e0u<\/strong><\/td>\n<td>\u2264 15 TCU<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>T\u1ed5ng Fe<\/strong><\/td>\n<td>\u2264 0.3 mg\/L<\/td>\n<td>Quan tr\u1ecdng khi d\u00f9ng FeSO4 cho n\u01b0\u1edbc c\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td><strong>Al<\/strong><\/td>\n<td>\u2264 0.2 mg\/L<\/td>\n<td>Gi\u1edbi h\u1ea1n nghi\u00eam ng\u1eb7t \u2014 c\u1ea7n ki\u1ec3m so\u00e1t li\u1ec1u PAC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Decision_Tree_%E2%80%94_Khi_Nao_Chon_Loai_Nao\"><\/span><span class=\"ez-toc-section\" id=\"Decision_Tree_%E2%80%94_Khi_Nao_Chon_Loai_Nao\"><\/span><span class=\"ez-toc-section\" id=\"Decision_Tree_%E2%80%94_Khi_Nao_Chon_Loai_Nao\"><\/span>Decision Tree \u2014 Khi N\u00e0o Ch\u1ecdn Lo\u1ea1i N\u00e0o?<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong>N\u01b0\u1edbc th\u1ea3i c\u00f3 Cr6+ ho\u1eb7c c\u1ea7n ph\u1ea3n \u1ee9ng Fenton AOP?<\/strong> \u2192 D\u00f9ng <strong>FeCl2<\/strong><\/li>\n<li><strong>N\u01b0\u1edbc th\u1ea3i m\u00f9i H\u2082S, sulfide n\u1ed3ng \u0111\u1ed9 cao?<\/strong> \u2192 D\u00f9ng <strong>FeCl2<\/strong><\/li>\n<li><strong>N\u01b0\u1edbc th\u1ea3i d\u1ec7t nhu\u1ed9m c\u00f3 m\u00e0u reactive, acid, direct?<\/strong> \u2192 D\u00f9ng <strong>FeCl2 + Fenton<\/strong>, b\u1ed5 sung PAC b\u01b0\u1edbc keo t\u1ee5 ch\u00ednh<\/li>\n<li><strong>N\u01b0\u1edbc c\u1ea5p sinh ho\u1ea1t, n\u01b0\u1edbc m\u1eb7t \u0111\u1ee5c, n\u01b0\u1edbc h\u1ed3?<\/strong> \u2192 D\u00f9ng <strong>PAC<\/strong><\/li>\n<li><strong>Chi ph\u00ed l\u00e0 \u01b0u ti\u00ean, n\u01b0\u1edbc th\u1ea3i \u0111\u00f4 th\u1ecb quy m\u00f4 l\u1edbn, kh\u00f4ng c\u00f3 Cr6+ hay sulfide?<\/strong> \u2192 D\u00f9ng <strong>FeSO4<\/strong><\/li>\n<li><strong>C\u1ea7n x\u1eed l\u00fd phosphate (n\u01b0\u1edbc ph\u00fa d\u01b0\u1ee1ng, h\u1ed3 \u0111i\u1ec1u ti\u1ebft)?<\/strong> \u2192 <strong>FeSO4<\/strong> ho\u1eb7c <strong>FeCl2<\/strong><\/li>\n<li><strong>Bi\u1ebfn \u0111\u1ed9ng ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc l\u1edbn, kh\u00f4ng mu\u1ed1n \u0111i\u1ec1u ch\u1ec9nh pH th\u01b0\u1eddng xuy\u00ean?<\/strong> \u2192 <strong>PAC<\/strong><\/li>\n<li><strong>H\u1ec7 th\u1ed1ng tuy\u1ec3n n\u1ed5i DAF c\u1ea7n t\u1ea1o b\u00f4ng nhanh?<\/strong> \u2192 <strong>PAC<\/strong><\/li>\n<li><strong>N\u01b0\u1edbc th\u1ea3i h\u1ed7n h\u1ee3p nhi\u1ec1u ch\u1ea5t \u00f4 nhi\u1ec5m (xi m\u1ea1 + h\u1eefu c\u01a1 + m\u00e0u)?<\/strong> \u2192 <strong>FeCl2 + PAC<\/strong> k\u1ebft h\u1ee3p<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"FAQ_%E2%80%94_10_Cau_Hoi_Thuong_Gap\"><\/span><span class=\"ez-toc-section\" id=\"FAQ_%E2%80%94_10_Cau_Hoi_Thuong_Gap\"><\/span><span class=\"ez-toc-section\" id=\"FAQ_%E2%80%94_10_Cau_Hoi_Thuong_Gap\"><\/span>FAQ \u2014 10 C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"faq-item\">\n<div class=\"faq-q\">1. C\u00f3 th\u1ec3 d\u00f9ng k\u1ebft h\u1ee3p FeCl2 v\u00e0 PAC kh\u00f4ng?<\/div>\n<div class=\"faq-a\">C\u00f3, v\u00e0 r\u1ea5t ph\u1ed5 bi\u1ebfn trong x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i d\u1ec7t nhu\u1ed9m v\u00e0 n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p. FeCl2 d\u00f9ng \u1edf b\u01b0\u1edbc Fenton (pH 2.5\u20133.5) \u0111\u1ec3 ph\u00e1 m\u00e0u h\u00f2a tan v\u00e0 oxy h\u00f3a COD, sau \u0111\u00f3 PAC \u0111\u01b0\u1ee3c th\u00eam v\u00e0o b\u1ec3 keo t\u1ee5 ch\u00ednh (pH 6\u20137.5) \u0111\u1ec3 t\u1ea1o b\u00f4ng l\u1edbn.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">2. FeCl2 c\u00f3 th\u1ec3 d\u00f9ng keo t\u1ee5 n\u01b0\u1edbc c\u1ea5p sinh ho\u1ea1t kh\u00f4ng?<\/div>\n<div class=\"faq-a\">V\u1ec1 k\u1ef9 thu\u1eadt c\u00f3 th\u1ec3, nh\u01b0ng trong th\u1ef1c t\u1ebf \u00edt d\u00f9ng v\u00ec: t\u1ea1o m\u00e0u v\u00e0ng n\u00e2u n\u1ebfu l\u1eafng\/l\u1ecdc kh\u00f4ng t\u1ed1t, gi\u00e1 cao h\u01a1n FeSO4 v\u00e0 PAC khi t\u00ednh hi\u1ec7u qu\u1ea3 keo t\u1ee5 thu\u1ea7n t\u00fay, b\u1ea3o qu\u1ea3n kh\u00f3 h\u01a1n. FeSO4 v\u00e0 PAC l\u00e0 l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf h\u01a1n cho n\u01b0\u1edbc c\u1ea5p.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">3. T\u1ea1i sao d\u00f9ng FeCl2 m\u00e0 n\u01b0\u1edbc sau x\u1eed l\u00fd v\u1eabn c\u00f2n m\u00e0u v\u00e0ng n\u00e2u?<\/div>\n<div class=\"faq-a\">Ba nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn: (1) pH qu\u00e1 th\u1ea5p \u2014 Fe\u00b3\u207a ch\u01b0a th\u1ee7y ph\u00e2n ho\u00e0n to\u00e0n, c\u1ea7n t\u0103ng pH l\u00ean 7.0\u20138.0; (2) FeCl2 \u0111\u00e3 b\u1ecb oxy h\u00f3a th\u00e0nh FeCl3 (m\u00e0u v\u00e0ng n\u00e2u thay v\u00ec xanh l\u00e1 nh\u1ea1t); (3) Th\u1eddi gian l\u1eafng kh\u00f4ng \u0111\u1ee7 \u2014 t\u0103ng HRT b\u1ec3 l\u1eafng l\u00ean 3\u20134 gi\u1edd.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">4. Polymer\/polyelectrolyte d\u00f9ng k\u1ebft h\u1ee3p h\u00f3a ch\u1ea5t keo t\u1ee5 nh\u01b0 th\u1ebf n\u00e0o?<\/div>\n<div class=\"faq-a\">Polymer (PAM) ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc flocculation sau keo t\u1ee5, kh\u00f4ng thay th\u1ebf h\u00f3a ch\u1ea5t keo t\u1ee5. Quy tr\u00ecnh: (1) th\u00eam FeCl2\/FeSO4\/PAC + khu\u1ea5y nhanh 100\u2013200 rpm \/ 1\u20132 ph\u00fat \u2192 (2) th\u00eam polymer anionic 0.5\u20133 mg\/L + khu\u1ea5y ch\u1eadm 30\u201350 rpm \/ 15\u201320 ph\u00fat \u2192 (3) l\u1eafng. Ch\u00fa \u00fd: d\u00f9ng polymer anionic v\u1edbi FeCl2 (floc Fe(OH)\u2083 t\u00edch \u0111i\u1ec7n d\u01b0\u01a1ng).<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">5. Li\u1ec1u keo t\u1ee5 c\u00f3 thay \u0111\u1ed5i theo m\u00f9a m\u01b0a\/kh\u00f4 kh\u00f4ng?<\/div>\n<div class=\"faq-a\">C\u00f3, thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3. M\u00f9a m\u01b0a: turbidity cao h\u01a1n, li\u1ec1u keo t\u1ee5 c\u00f3 th\u1ec3 t\u0103ng 20\u201350% so v\u1edbi m\u00f9a kh\u00f4. M\u00f9a kh\u00f4: n\u01b0\u1edbc th\u1ea3i \u0111\u1eb7c h\u01a1n, COD v\u00e0 TDS cao h\u01a1n. Khuy\u1ebfn ngh\u1ecb: theo d\u00f5i turbidity\/TSS \u0111\u1ea7u v\u00e0o h\u00e0ng tu\u1ea7n v\u00e0 \u0111i\u1ec1u ch\u1ec9nh li\u1ec1u t\u01b0\u01a1ng \u1ee9ng.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">6. Bao l\u00e2u n\u00ean th\u1ef1c hi\u1ec7n jar test l\u1ea1i khi ngu\u1ed3n n\u01b0\u1edbc th\u1ea3i thay \u0111\u1ed5i?<\/div>\n<div class=\"faq-a\">Th\u1ef1c hi\u1ec7n jar test l\u1ea1i khi: (1) TSS ho\u1eb7c COD \u0111\u1ea7u v\u00e0o thay \u0111\u1ed5i &gt;20%, (2) nh\u00e0 m\u00e1y thay \u0111\u1ed5i nguy\u00ean li\u1ec7u ho\u1eb7c quy tr\u00ecnh s\u1ea3n xu\u1ea5t, (3) chuy\u1ec3n sang nh\u00e0 cung c\u1ea5p h\u00f3a ch\u1ea5t m\u1edbi, (4) ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc sau x\u1eed l\u00fd x\u1ea5u \u0111i b\u1ea5t th\u01b0\u1eddng. T\u1ed1i thi\u1ec3u: 1 l\u1ea7n\/qu\u00fd.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">7. FeCl2 \u0111\u00e3 b\u1ecb oxy h\u00f3a (m\u00e0u v\u00e0ng n\u00e2u) c\u00f2n d\u00f9ng keo t\u1ee5 \u0111\u01b0\u1ee3c kh\u00f4ng?<\/div>\n<div class=\"faq-a\">V\u1eabn d\u00f9ng keo t\u1ee5 \u0111\u01b0\u1ee3c \u2014 Fe\u00b3\u207a th\u1ee7y ph\u00e2n t\u1ea1o Fe(OH)\u2083 b\u00ecnh th\u01b0\u1eddng. Tuy nhi\u00ean <strong>kh\u00f4ng th\u1ec3 d\u00f9ng cho Fenton AOP<\/strong> v\u00ec m\u1ea5t ho\u00e0n to\u00e0n Fe\u00b2\u207a. Ki\u1ec3m tra b\u1eb1ng gi\u1ea5y th\u1eed Fe\u00b2\u207a ho\u1eb7c thu\u1ed1c th\u1eed 1,10-phenanthroline.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">8. X\u1eed l\u00fd b\u00f9n keo t\u1ee5 t\u1eeb FeCl2 nh\u01b0 th\u1ebf n\u00e0o?<\/div>\n<div class=\"faq-a\">Quy tr\u00ecnh: (1) C\u00f4 \u0111\u1eb7c b\u00f9n (gravity thickening); (2) Th\u00eam polymer cationic l\u00e0m dewatering aid; (3) \u00c9p b\u00f9n b\u1eb1ng belt press\/filter press \u0111\u1ea1t \u0111\u1ed9 \u1ea9m 60\u201375%; (4) N\u1ebfu kh\u00f4ng c\u00f3 kim lo\u1ea1i n\u1eb7ng nguy h\u1ea1i \u2192 ch\u00f4n l\u1ea5p c\u00f4ng nghi\u1ec7p; n\u1ebfu ch\u1ee9a Cr3+ ho\u1eb7c kim lo\u1ea1i n\u1eb7ng \u2192 x\u1eed l\u00fd nh\u01b0 ch\u1ea5t th\u1ea3i nguy h\u1ea1i theo Ngh\u1ecb \u0111\u1ecbnh 08\/2022\/N\u0110-CP.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">9. FeSO4 d\u1ea1ng h\u1ea1t v\u00e0 dung d\u1ecbch kh\u00e1c nhau th\u1ebf n\u00e0o v\u1ec1 gi\u00e1 th\u00e0nh?<\/div>\n<div class=\"faq-a\">FeSO4\u00b77H2O d\u1ea1ng h\u1ea1t r\u1ebb h\u01a1n 15\u201325% so v\u1edbi dung d\u1ecbch t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tr\u00ean c\u01a1 s\u1edf \u0111\u01a1n v\u1ecb Fe\u00b2\u207a. C\u1ea7n t\u00ednh th\u00eam chi ph\u00ed pha ch\u1ebf v\u00e0 nh\u00e2n c\u00f4ng. V\u1edbi nh\u00e0 m\u00e1y &gt;1 t\u1ea5n\/ng\u00e0y, dung d\u1ecbch pha s\u1eb5n kinh t\u1ebf h\u01a1n. V\u1edbi nh\u00e0 m\u00e1y &lt;200 m\u00b3\/ng\u00e0y, h\u1ea1t d\u1ec5 b\u1ea3o qu\u1ea3n v\u00e0 r\u1ebb h\u01a1n.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">10. PAC 17% v\u00e0 PAC 10% lo\u1ea1i n\u00e0o t\u1ed1t h\u01a1n?<\/div>\n<div class=\"faq-a\">Kh\u00f4ng c\u00f3 lo\u1ea1i &#8220;t\u1ed1t h\u01a1n&#8221; \u2014 c\u1ea3 hai cho c\u00f9ng k\u1ebft qu\u1ea3 n\u1ebfu t\u00ednh li\u1ec1u theo kg Al\u2082O\u2083. PAC 17% \u0111\u1eb7c h\u01a1n, li\u1ec1u th\u1ec3 t\u00edch nh\u1ecf h\u01a1n, ti\u1ebft ki\u1ec7m b\u1ed3n ch\u1ee9a. PAC 10% lo\u00e3ng h\u01a1n, d\u1ec5 h\u00f2a tan khi nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 \u00edt t\u1eafc ngh\u1ebdn b\u01a1m \u0111\u1ecbnh l\u01b0\u1ee3ng. Ch\u1ecdn theo thi\u1ebft k\u1ebf b\u01a1m v\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n t\u1ea1i c\u01a1 s\u1edf.<\/div>\n<\/div>\n<div class=\"contact-box\">\n<h3><span class=\"ez-toc-section\" id=\"Mua_FeCl2_FeSO4_va_PAC_Tai_Loc_Thien\"><\/span><span class=\"ez-toc-section\" id=\"Mua_FeCl2_FeSO4_va_PAC_Tai_Loc_Thien\"><\/span><span class=\"ez-toc-section\" id=\"Mua_FeCl2_FeSO4_va_PAC_Tai_Loc_Thien\"><\/span>Mua FeCl2, FeSO4 v\u00e0 PAC T\u1ea1i L\u1ed9c Thi\u00ean<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>H\u00f3a Ch\u1ea5t L\u1ed9c Thi\u00ean<\/strong> l\u00e0 nh\u00e0 cung c\u1ea5p h\u00f3a ch\u1ea5t keo t\u1ee5 cho c\u00e1c nh\u00e0 m\u00e1y XLNT t\u1ea1i TP.HCM, B\u00ecnh D\u01b0\u01a1ng, \u0110\u1ed3ng Nai v\u00e0 c\u00e1c khu c\u00f4ng nghi\u1ec7p ph\u00eda Nam.<\/p>\n<p><strong>S\u1ea3n ph\u1ea9m s\u1eb5n h\u00e0ng:<\/strong><\/p>\n<ul>\n<li>FeCl2 dung d\u1ecbch 25\u201330% (IBC 1000L, can 30L)<\/li>\n<li>FeSO4 d\u1ea1ng h\u1ea1t v\u00e0 dung d\u1ecbch (bao 50kg, IBC)<\/li>\n<li>PAC 10%, 17%, 18% (bao 25kg, th\u00f9ng 25L)<\/li>\n<li>Polymer anionic\/cationic (PAM) h\u1ed7 tr\u1ee3 t\u1ea1o b\u00f4ng v\u00e0 \u00e9p b\u00f9n<\/li>\n<li>Ca(OH)\u2082, NaOH \u2014 h\u00f3a ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh pH<\/li>\n<\/ul>\n<p><strong>D\u1ecbch v\u1ee5:<\/strong> T\u01b0 v\u1ea5n l\u1ef1a ch\u1ecdn h\u00f3a ch\u1ea5t, t\u00ednh to\u00e1n li\u1ec1u l\u01b0\u1ee3ng v\u00e0 th\u1ef1c hi\u1ec7n jar test t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng mi\u1ec5n ph\u00ed cho kh\u00e1ch h\u00e0ng m\u1edbi.<\/p>\n<p>\n    <strong>H\u00f3a Ch\u1ea5t L\u1ed9c Thi\u00ean<\/strong><br \/>\n    452\/6B T\u1ec9nh L\u1ed9 10, P. B\u00ecnh Tr\u1ecb \u0110\u00f4ng, Q. B\u00ecnh T\u00e2n, TP.HCM<br \/>\n    Hotline: <strong>0979 89 19 29<\/strong><br \/>\n    Website: hoachatlocthien.com\n  <\/p>\n<\/div>\n<div class=\"stats-box\">\n<h3><span class=\"ez-toc-section\" id=\"%F0%9F%93%8A_Thong_ke_bai_viet\"><\/span><span class=\"ez-toc-section\" id=\"%F0%9F%93%8A_Thong_ke_bai_viet\"><\/span><span class=\"ez-toc-section\" id=\"%F0%9F%93%8A_Thong_ke_bai_viet\"><\/span>\ud83d\udcca Th\u1ed1ng k\u00ea b\u00e0i vi\u1ebft<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>T\u1ed5ng s\u1ed1 t\u1eeb (\u01b0\u1edbc t\u00ednh):<\/strong> ~4.200 t\u1eeb<\/li>\n<li><strong>S\u1ed1 H2 ch\u00ednh:<\/strong> 9 m\u1ee5c<\/li>\n<li><strong>S\u1ed1 b\u1ea3ng:<\/strong> 10 b\u1ea3ng<\/li>\n<li><strong>Direct Answer boxes:<\/strong> 3<\/li>\n<li><strong>FAQ:<\/strong> 10 c\u00e2u h\u1ecfi<\/li>\n<li><strong>Focus keyword:<\/strong> FeCl2 keo t\u1ee5 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/li>\n<li><strong>GEO signals:<\/strong> TP.HCM, B\u00ecnh D\u01b0\u01a1ng, \u0110\u1ed3ng Nai, H\u00f3a Ch\u1ea5t L\u1ed9c Thi\u00ean, gi\u00e1 VN\u0110 2024\u20132025<\/li>\n<li><strong>Schema:<\/strong> FAQPage + Article JSON-LD<\/li>\n<li><strong>Version:<\/strong> v2.0<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><!-- Schema JSON-LD --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>So S\u00e1nh FeCl2, FeSO4 v\u00e0 PAC: Ch\u1ecdn \u0110\u00fang H\u00f3a Ch\u1ea5t Keo T\u1ee5 Cho T\u1eebng \u1ee8ng D\u1ee5ng N\u1ed9i dung Toggle Gi\u1edbi Thi\u1ec7u: Quy\u1ebft \u0110\u1ecbnh Sai H\u00f3a Ch\u1ea5t Keo T\u1ee5 C\u00f3 Th\u1ec3 T\u1ed1n H\u00e0ng Ch\u1ee5c Tri\u1ec7u \u0110\u1ed3ng M\u1ed7i Th\u00e1ng B\u1ea3ng So S\u00e1nh T\u1ed5ng Quan Ba H\u00f3a Ch\u1ea5t Keo T\u1ee5 C\u01a1 Ch\u1ebf Keo T\u1ee5 \u2014 T\u1ea1i Sao S\u1eaft [&#8230;]\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-9123","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/posts\/9123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/comments?post=9123"}],"version-history":[{"count":6,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/posts\/9123\/revisions"}],"predecessor-version":[{"id":9162,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/posts\/9123\/revisions\/9162"}],"wp:attachment":[{"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/media?parent=9123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/categories?post=9123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/tags?post=9123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}