{"id":9413,"date":"2026-07-17T13:16:59","date_gmt":"2026-07-17T06:16:59","guid":{"rendered":"https:\/\/hoachatlocthien.com\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail"},"modified":"2026-07-17T13:16:59","modified_gmt":"2026-07-17T06:16:59","slug":"he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail","status":"publish","type":"post","link":"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail","title":{"rendered":"H\u1ec7 Th\u1ed1ng X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i \u0110\u00e3 Ch\u00e2m H\u00f3a Ch\u1ea5t M\u00e0 V\u1eabn Fail: 8 N\u1ed7i \u0110au V\u1eadn H\u00e0nh | L\u1ed9c Thi\u00ean"},"content":{"rendered":"<div class=\"geo-aio-answer\">\n  <p><strong>H\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i \u0111\u00e3 ch\u00e2m \u0111\u1ee7 h\u00f3a ch\u1ea5t v\u1eabn fail<\/strong> th\u01b0\u1eddng do v\u1eadn h\u00e0nh: pH l\u1ec7ch, jar-test c\u0169, ch\u00e2m \u201cb\u1ecbt m\u1eaft\u201d, oxi h\u00f3a Fe\u00b2\u207a, chi ph\u00ed b\u00f9n \u2014 ch\u1ee9 kh\u00f4ng ch\u1ec9 v\u00ec \u201cthi\u1ebfu h\u00f3a ch\u1ea5t\u201d.<\/p>\n  <p>Khi c\u1ea7n s\u1eaft (II) \u0111\u1ec3 keo t\u1ee5\/kh\u1eed, h\u1ed7 tr\u1ee3 Fenton\/AOP ho\u1eb7c kh\u1eed Cr6+, c\u00e2n nh\u1eafc <a href=\"https:\/\/hoachatlocthien.com\/en\/product\/fecl2-sat-ii-clorua\/\">FeCl2 (ferrous chloride, s\u1eaft II clorua) CAS 7758-94-3<\/a>, dung d\u1ecbch 15\u201330% theo COA l\u00f4, B2B k\u00e8m MSDS\/COA; li\u1ec1u th\u1ef1c t\u1ebf ph\u1ea3i jar-test t\u1ea1i nh\u00e0 m\u00e1y.<\/p>\n<\/div>\n\n<ul class=\"ux-key-points\">\n  <li>Tr\u01b0\u1ee3t ch\u1ec9 ti\u00eau sau keo t\u1ee5 \u0111a ph\u1ea7n l\u00e0 process + lab, ch\u01b0a h\u1eb3n \u201c\u0111\u1ed5i nh\u00e0 cung c\u1ea5p\u201d l\u00e0 xong.<\/li>\n  <li>Chi ph\u00ed th\u1eadt = h\u00f3a ch\u1ea5t + b\u00f9n + d\u1eebng m\u00e1y + r\u1ee7i ro QCVN \u2014 kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u00e1 th\u00f9ng.<\/li>\n  <li>FeCl2 ch\u1ec9 h\u1ee3p khi \u0111\u00e3 kh\u00f3a h\u00f3a tr\u1ecb II, c\u1eeda s\u1ed5 pH v\u00e0 \u0111i\u1ec1u ki\u1ec7n kh\u1eed\/Fenton.<\/li>\n<\/ul>\n\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\">Content<\/p>\n<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><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Vi_sao_ETP_%E2%80%9Cdung_thiet_ke%E2%80%9D_van_truot\" title=\"V\u00ec sao ETP \u201c\u0111\u00fang thi\u1ebft k\u1ebf\u201d v\u1eabn tr\u01b0\u1ee3t\">V\u00ec sao ETP \u201c\u0111\u00fang thi\u1ebft k\u1ebf\u201d v\u1eabn tr\u01b0\u1ee3t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Bang_8_noi_dau_van_hanh_thuong_gap\" title=\"B\u1ea3ng 8 n\u1ed7i \u0111au v\u1eadn h\u00e0nh th\u01b0\u1eddng g\u1eb7p\">B\u1ea3ng 8 n\u1ed7i \u0111au v\u1eadn h\u00e0nh th\u01b0\u1eddng g\u1eb7p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_1_Hoa_dung_ten_lo_lech_nong_do\" title=\"N\u1ed7i \u0111au 1: H\u00f3a \u0111\u00fang t\u00ean, l\u00f4 l\u1ec7ch n\u1ed3ng \u0111\u1ed9\">N\u1ed7i \u0111au 1: H\u00f3a \u0111\u00fang t\u00ean, l\u00f4 l\u1ec7ch n\u1ed3ng \u0111\u1ed9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_2_Fe%C2%B2%E2%81%BA_oxi_hoa_trong_kho_hoac_bon_ho\" title=\"N\u1ed7i \u0111au 2: Fe\u00b2\u207a oxi h\u00f3a trong kho ho\u1eb7c b\u1ed3n h\u1edf\">N\u1ed7i \u0111au 2: Fe\u00b2\u207a oxi h\u00f3a trong kho ho\u1eb7c b\u1ed3n h\u1edf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_3_Jar-test_mot_lan_dung_mai\" title=\"N\u1ed7i \u0111au 3: Jar-test m\u1ed9t l\u1ea7n d\u00f9ng m\u00e3i\">N\u1ed7i \u0111au 3: Jar-test m\u1ed9t l\u1ea7n d\u00f9ng m\u00e3i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_4_Operator_%E2%80%9Cthay_duc_cham_them%E2%80%9D\" title=\"N\u1ed7i \u0111au 4: Operator \u201cth\u1ea5y \u0111\u1ee5c ch\u00e2m th\u00eam\u201d\">N\u1ed7i \u0111au 4: Operator \u201cth\u1ea5y \u0111\u1ee5c ch\u00e2m th\u00eam\u201d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_5_Chi_phi_bun_che_chi_phi_hoa_chat\" title=\"N\u1ed7i \u0111au 5: Chi ph\u00ed b\u00f9n che chi ph\u00ed h\u00f3a ch\u1ea5t\">N\u1ed7i \u0111au 5: Chi ph\u00ed b\u00f9n che chi ph\u00ed h\u00f3a ch\u1ea5t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_6_Cua_so_pH_keo_tu_bi_lech\" title=\"N\u1ed7i \u0111au 6: C\u1eeda s\u1ed5 pH keo t\u1ee5 b\u1ecb l\u1ec7ch\">N\u1ed7i \u0111au 6: C\u1eeda s\u1ed5 pH keo t\u1ee5 b\u1ecb l\u1ec7ch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_7_Tron_kem_G-value_sai_canh_mon\" title=\"N\u1ed7i \u0111au 7: Tr\u1ed9n k\u00e9m, G-value sai, c\u00e1nh m\u00f2n\">N\u1ed7i \u0111au 7: Tr\u1ed9n k\u00e9m, G-value sai, c\u00e1nh m\u00f2n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Noi_dau_8_Chuoi_Cr6_hoac_Fenton_bi_cat_ngang\" title=\"N\u1ed7i \u0111au 8: Chu\u1ed7i Cr6+ ho\u1eb7c Fenton b\u1ecb c\u1eaft ngang\">N\u1ed7i \u0111au 8: Chu\u1ed7i Cr6+ ho\u1eb7c Fenton b\u1ecb c\u1eaft ngang<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Checklist_chan_doan_truoc_khi_doi_hoa_chat\" title=\"Checklist ch\u1ea9n \u0111o\u00e1n tr\u01b0\u1edbc khi \u0111\u1ed5i h\u00f3a ch\u1ea5t\">Checklist ch\u1ea9n \u0111o\u00e1n tr\u01b0\u1edbc khi \u0111\u1ed5i h\u00f3a ch\u1ea5t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Jar-test_khi_nao_bat_buoc_lam_lai\" title=\"Jar-test: khi n\u00e0o b\u1eaft bu\u1ed9c l\u00e0m l\u1ea1i\">Jar-test: khi n\u00e0o b\u1eaft bu\u1ed9c l\u00e0m l\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Khi_nao_FeCl2_phu_hop_%E2%80%94_khi_nao_khong\" title=\"Khi n\u00e0o FeCl2 ph\u00f9 h\u1ee3p \u2014 khi n\u00e0o kh\u00f4ng\">Khi n\u00e0o FeCl2 ph\u00f9 h\u1ee3p \u2014 khi n\u00e0o kh\u00f4ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Tai_lieu_ky_thuat_lien_quan\" title=\"T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt li\u00ean quan\">T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt li\u00ean quan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#FAQ_%E2%80%93_Cau_hoi_thuong_gap\" title=\"FAQ \u2013 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p\">FAQ \u2013 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Vi_sao_da_cham_du_hoa_chat_nuoc_thai_van_duc_hoac_COD_cao\" title=\"V\u00ec sao \u0111\u00e3 ch\u00e2m \u0111\u1ee7 h\u00f3a ch\u1ea5t n\u01b0\u1edbc th\u1ea3i v\u1eabn \u0111\u1ee5c ho\u1eb7c COD cao?\">V\u00ec sao \u0111\u00e3 ch\u00e2m \u0111\u1ee7 h\u00f3a ch\u1ea5t n\u01b0\u1edbc th\u1ea3i v\u1eabn \u0111\u1ee5c ho\u1eb7c COD cao?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Nen_bat_dau_kiem_tra_gi_truoc_khi_doi_nha_cung_cap\" title=\"N\u00ean b\u1eaft \u0111\u1ea7u ki\u1ec3m tra g\u00ec tr\u01b0\u1edbc khi \u0111\u1ed5i nh\u00e0 cung c\u1ea5p?\">N\u00ean b\u1eaft \u0111\u1ea7u ki\u1ec3m tra g\u00ec tr\u01b0\u1edbc khi \u0111\u1ed5i nh\u00e0 cung c\u1ea5p?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#FeCl2_va_FeCl3_khac_nhau_the_nao_cho_nuoc_thai\" title=\"FeCl2 v\u00e0 FeCl3 kh\u00e1c nhau th\u1ebf n\u00e0o cho n\u01b0\u1edbc th\u1ea3i?\">FeCl2 v\u00e0 FeCl3 kh\u00e1c nhau th\u1ebf n\u00e0o cho n\u01b0\u1edbc th\u1ea3i?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#FeCl2_co_thay_duoc_PAC_moi_luc_khong\" title=\"FeCl2 c\u00f3 thay \u0111\u01b0\u1ee3c PAC m\u1ecdi l\u00fac kh\u00f4ng?\">FeCl2 c\u00f3 thay \u0111\u01b0\u1ee3c PAC m\u1ecdi l\u00fac kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#CAS_va_nong_do_FeCl2_tham_chieu_la_gi\" title=\"CAS v\u00e0 n\u1ed3ng \u0111\u1ed9 FeCl2 tham chi\u1ebfu l\u00e0 g\u00ec?\">CAS v\u00e0 n\u1ed3ng \u0111\u1ed9 FeCl2 tham chi\u1ebfu l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Khi_nao_can_jar-test_lai\" title=\"Khi n\u00e0o c\u1ea7n jar-test l\u1ea1i?\">Khi n\u00e0o c\u1ea7n jar-test l\u1ea1i?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Lam_sao_nhan_COA_MSDS_va_bao_gia_B2B\" title=\"L\u00e0m sao nh\u1eadn COA, MSDS v\u00e0 b\u00e1o gi\u00e1 B2B?\">L\u00e0m sao nh\u1eadn COA, MSDS v\u00e0 b\u00e1o gi\u00e1 B2B?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#FeCl2_co_dung_trong_Fenton_va_khu_Cr6_khong\" title=\"FeCl2 c\u00f3 d\u00f9ng trong Fenton v\u00e0 kh\u1eed Cr6+ kh\u00f4ng?\">FeCl2 c\u00f3 d\u00f9ng trong Fenton v\u00e0 kh\u1eed Cr6+ kh\u00f4ng?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/hoachatlocthien.com\/en\/he-thong-xu-ly-nuoc-thai-hoa-chat-dung-van-fail\/#Ket_luan_va_buoc_tiep_theo\" title=\"K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo\">K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Vi_sao_ETP_%E2%80%9Cdung_thiet_ke%E2%80%9D_van_truot\"><\/span>V\u00ec sao ETP \u201c\u0111\u00fang thi\u1ebft k\u1ebf\u201d v\u1eabn tr\u01b0\u1ee3t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhi\u1ec1u nh\u00e0 m\u00e1y KCN \u0111\u00e3 c\u00f3 b\u1ec3 keo t\u1ee5 \u2013 t\u1ea1o b\u00f4ng \u2013 l\u1eafng \u2013 l\u1ecdc, \u0111\u00e3 ch\u00e2m PAC, FeSO4, <a href=\"https:\/\/hoachatlocthien.com\/en\/product\/fecl2-sat-ii-clorua\/\">FeCl2<\/a> ho\u1eb7c polymer theo \u201cli\u1ec1u thi\u1ebft k\u1ebf\u201d, v\u1eady m\u00e0 COD, \u0111\u1ed9 \u0111\u1ee5c, m\u00e0u hay Cr6+ c\u1eeda ra v\u1eabn nh\u1ea3y. S\u1ed5 ghi \u201c\u0111\u00e3 b\u01a1m \u0111\u1ee7\u201d; th\u1ef1c \u0111\u1ecba th\u00ec h\u00f3a v\u00e0 d\u00f2ng th\u1ea3i l\u1ec7ch t\u1eeb kho, b\u1ed3n, khu\u1ea5y \u0111\u1ebfn pH meter tr\u00f4i hi\u1ec7u chu\u1ea9n.<\/p>\n<p>C\u00e2u k\u1ef9 s\u01b0 v\u00e0 thu mua hay h\u1ecfi ch\u00fang t\u00f4i: <em>\u201cH\u00f3a \u0111\u00e3 v\u00e0o h\u1ec7, sao v\u1eabn fail?\u201d<\/em> Ph\u1ea7n l\u1edbn n\u1eb1m \u1edf <strong>chu\u1ed7i v\u1eadn h\u00e0nh ETP<\/strong>, kh\u00f4ng ph\u1ea3i thi\u1ebfu m\u1ed9t t\u00ean h\u00f3a tr\u00ean gi\u1ea5y. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 8 n\u1ed7i \u0111au l\u1eb7p l\u1ea1i \u2014 hi\u1ec7n t\u01b0\u1ee3ng, t\u1ed1n ti\u1ec1n, vi\u1ec7c ki\u1ec3m tr\u01b0\u1edbc khi \u0111\u1ed5 l\u1ed7i vendor.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Bang_8_noi_dau_van_hanh_thuong_gap\"><\/span>B\u1ea3ng 8 n\u1ed7i \u0111au v\u1eadn h\u00e0nh th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"wp-block-table\">\n<table>\n  <thead>\n    <tr>\n      <th>N\u1ed7i \u0111au<\/th>\n      <th>Hi\u1ec7n t\u01b0\u1ee3ng<\/th>\n      <th>T\u1ed1n ti\u1ec1n th\u1ebf n\u00e0o<\/th>\n      <th>Vi\u1ec7c n\u00ean ki\u1ec3m tra tr\u01b0\u1edbc<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>1. L\u00f4 l\u1ec7ch n\u1ed3ng \u0111\u1ed9 \/ COA<\/td>\n      <td>C\u00f9ng t\u00ean h\u00f3a, li\u1ec1u c\u0169 m\u1ea5t hi\u1ec7u l\u1ef1c; b\u00f4ng l\u1ecfng<\/td>\n      <td>Ch\u00e2m b\u00f9 m\u00f9, \u0111\u1ee5c c\u1eeda ra, ch\u1ea1y l\u1ea1i batch<\/td>\n      <td>COA l\u00f4, % n\u1ed3ng \u0111\u1ed9, m\u00e0u, tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang<\/td>\n    <\/tr>\n    <tr>\n      <td>2. Fe\u00b2\u207a oxi h\u00f3a kho \/ b\u1ed3n h\u1edf<\/td>\n      <td>Dung d\u1ecbch s\u1eabm; l\u1ef1c kh\u1eed Cr6+\/Fenton t\u1ee5t<\/td>\n      <td>H\u2082O\u2082\/acid \u201c\u0103n\u201d th\u00eam, tr\u01b0\u1ee3t kim lo\u1ea1i n\u1eb7ng<\/td>\n      <td>K\u00edn b\u1ed3n, FIFO, tu\u1ed5i t\u1ed3n, v\u1eadt li\u1ec7u \u1ed1ng<\/td>\n    <\/tr>\n    <tr>\n      <td>3. Jar-test 1 l\u1ea7n d\u00f9ng m\u00e3i<\/td>\n      <td>\u0110\u1ed5i m\u00e3 \/ m\u00f9a \/ m\u00e0u th\u1ea3i \u2014 b\u00f4ng kh\u00f4ng c\u00f2n nh\u01b0 lab c\u0169<\/td>\n      <td>H\u00f3a + polymer d\u01b0, COD l\u1ec7ch theo m\u00f9a<\/td>\n      <td>L\u1ecbch jar-test l\u1ea1i khi ngu\u1ed3n th\u1ea3i \u0111\u1ed5i<\/td>\n    <\/tr>\n    <tr>\n      <td>4. \u201cTh\u1ea5y \u0111\u1ee5c ch\u00e2m th\u00eam\u201d<\/td>\n      <td>B\u00f9n nh\u1eb9, overdose, pH l\u1ec7ch<\/td>\n      <td>H\u00f3a + polymer t\u0103ng, \u00e9p b\u00f9n kh\u00f3<\/td>\n      <td>D\u1eebng \u2013 \u0111o pH\/\u0111\u1ee5c\/li\u1ec1u b\u01a1m, kh\u00f4ng c\u1ea3m t\u00ednh<\/td>\n    <\/tr>\n    <tr>\n      <td>5. Chi ph\u00ed b\u00f9n > chi ph\u00ed h\u00f3a<\/td>\n      <td>B\u00f9n \u01b0\u1edbt nhi\u1ec1u, \u00e9p kh\u00f3, ch\u1edf \u0111\u1eaft<\/td>\n      <td>TCO t\u0103ng d\u00f9 \u0111\u01a1n gi\u00e1 h\u00f3a \u201cr\u1ebb\u201d<\/td>\n      <td>kg b\u00f9n kh\u00f4 \/ m\u00b3 th\u1ea3i, kh\u00f4ng ch\u1ec9 \u20ab\/th\u00f9ng<\/td>\n    <\/tr>\n    <tr>\n      <td>6. C\u1eeda s\u1ed5 pH keo t\u1ee5 l\u1ec7ch<\/td>\n      <td>B\u00f4ng ch\u1eadm, n\u1ed5i m\u1eb7t, keo t\u00e1i \u1ed5n \u0111\u1ecbnh<\/td>\n      <td>Acid\/ki\u1ec1m ph\u1ee5 + TSS fail<\/td>\n      <td>pH tr\u01b0\u1edbc\u2013sau ch\u00e2m, hi\u1ec7u chu\u1ea9n probe<\/td>\n    <\/tr>\n    <tr>\n      <td>7. Tr\u1ed9n k\u00e9m \/ G-value \/ c\u00e1nh m\u00f2n<\/td>\n      <td>V\u00f9ng ch\u1ebft, b\u00f4ng v\u1ee1 d\u00f9 \u201c\u0111\u1ee7 ml\u201d<\/td>\n      <td>Th\u1eddi gian l\u01b0u t\u0103ng, \u0111i\u1ec7n, t\u1ea3i b\u01a1m<\/td>\n      <td>T\u1ed1c \u0111\u1ed9 khu\u1ea5y, h\u00ecnh c\u00e1nh, \u0111i\u1ec3m ch\u00e2m<\/td>\n    <\/tr>\n    <tr>\n      <td>8. Chu\u1ed7i Cr6 \/ Fenton c\u1eaft ngang<\/td>\n      <td>Kh\u1eed xong g\u1ea1n kh\u00f4ng k\u1ecbp; COD\/m\u00e0u d\u1ed9i<\/td>\n      <td>L\u1eb7p stage, ph\u1ea1t kim lo\u1ea1i<\/td>\n      <td>Th\u1ee9 t\u1ef1 kh\u1eed \u2192 pH \u2192 l\u1eafng; \u0111\u1ee7 th\u1eddi gian<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n<\/figure>\n<p><em>B\u1ea3ng ch\u1ea9n \u0111o\u00e1n \u0111\u1ecbnh t\u00ednh cho k\u1ef9 s\u01b0 ETP. S\u1ed1 lab v\u00e0 li\u1ec1u ch\u00e2m l\u1ea5y t\u1eeb jar-test + SOP nh\u00e0 m\u00e1y \u2014 kh\u00f4ng thay b\u1eb1ng s\u1ed1 generic tr\u00ean internet.<\/em><\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_1_Hoa_dung_ten_lo_lech_nong_do\"><\/span>N\u1ed7i \u0111au 1: H\u00f3a \u0111\u00fang t\u00ean, l\u00f4 l\u1ec7ch n\u1ed3ng \u0111\u1ed9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u01a1n h\u00e0ng ghi \u0111\u00fang PAC, FeSO4 hay ferrous chloride, nh\u01b0ng <strong>ho\u1ea1t ch\u1ea5t theo COA t\u1eebng l\u00f4<\/strong> c\u00f3 th\u1ec3 l\u1ec7ch so v\u1edbi l\u00f4 jar-test ban \u0111\u1ea7u. B\u01a1m v\u1eabn ml c\u0169 \u2192 b\u00f4ng l\u1ecfng, m\u00e0u c\u00f2n, COD cao. Ph\u00e1t hi\u1ec7n mu\u1ed9n sau v\u00e0i ca ch\u00e2m b\u00f9.<\/p>\n<p><strong>T\u1ed1n g\u00ec:<\/strong> h\u00f3a d\u01b0, polymer d\u01b0, ch\u1ec9nh l\u1ea1i batch. <strong>L\u00e0m g\u00ec:<\/strong> b\u1eaft COA t\u1eebng l\u00f4; so m\u00e0u v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang v\u1edbi l\u00f4 chu\u1ea9n; \u0111\u1ed5i ngu\u1ed3n\/SKU th\u00ec jar-test t\u1ed1i thi\u1ec3u. V\u1edbi <a href=\"https:\/\/hoachatlocthien.com\/en\/product\/fecl2-sat-ii-clorua\/\">FeCl2 15\u201330% theo COA (SKU FECL2-1530)<\/a>, kh\u00f3a % Fe \/ Fe\u00b2\u207a tr\u00ean phi\u1ebfu \u2014 kh\u00f4ng ch\u1ec9 tin nh\u00e3n \u201cs\u1eaft II clorua\u201d.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_2_Fe%C2%B2%E2%81%BA_oxi_hoa_trong_kho_hoac_bon_ho\"><\/span>N\u1ed7i \u0111au 2: Fe\u00b2\u207a oxi h\u00f3a trong kho ho\u1eb7c b\u1ed3n h\u1edf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Mu\u1ed1i Fe(II) nh\u1ea1y kh\u00f4ng kh\u00ed v\u00e0 l\u01b0u tr\u1eef. B\u1ed3n h\u1edf, n\u1eafp l\u1ecfng, \u1ed1ng sai v\u1eadt li\u1ec7u, t\u1ed3n d\u00e0i \u2192 Fe\u00b2\u207a chuy\u1ec3n d\u1ea7n Fe\u00b3\u207a. H\u1ec7 m\u1ea5t l\u1ef1c kh\u1eed khi c\u1ea7n Cr6+ ho\u1eb7c Fenton\/AOP. M\u00e0u dung d\u1ecbch c\u00f3 th\u1ec3 s\u1eabm h\u01a1n d\u00f9 \u201c\u0111\u00fang t\u00ean h\u00f3a\u201d.<\/p>\n<p><strong>T\u1ed1n g\u00ec:<\/strong> l\u1eb7p stage kh\u1eed, acid\/H\u2082O\u2082, tr\u01b0\u1ee3t kim lo\u1ea1i. <strong>L\u00e0m g\u00ec:<\/strong> r\u00e0 <a href=\"https:\/\/hoachatlocthien.com\/en\/bon-chua-fecl2-vat-lieu\/\">v\u1eadt li\u1ec7u b\u1ed3n ch\u1ee9a FeCl2<\/a>, FIFO, tr\u00e1nh tr\u1ed9n s\u1edbm v\u1edbi oxi h\u00f3a m\u1ea1nh; Fenton xem <a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-fenton-huong-dan\/\">h\u01b0\u1edbng d\u1eabn FeCl2 \u2013 Fenton<\/a> (nguy\u00ean t\u1eafc, kh\u00f4ng thay SOP).<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_3_Jar-test_mot_lan_dung_mai\"><\/span>N\u1ed7i \u0111au 3: Jar-test m\u1ed9t l\u1ea7n d\u00f9ng m\u00e3i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Jar-test l\u00fac nghi\u1ec7m thu b\u1ecb \u201ckh\u00f3a\u201d 12\u201324 th\u00e1ng. M\u00e3 nhu\u1ed9m, ca SX, m\u00f9a m\u01b0a, d\u1ea7u t\u00e1ch \u0111\u00e3 \u0111\u1ed5i \u2014 b\u00f4ng lab ng\u00e0y x\u01b0a kh\u00f4ng \u0111\u1ea1i di\u1ec7n d\u00f2ng h\u00f4m nay. Li\u1ec1u gi\u1ea5y \u0111\u00fang, k\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf fail.<\/p>\n<p><strong>T\u1ed1n g\u00ec:<\/strong> COD\/TSS theo m\u00f9a, polymer b\u00f9 tr\u1eeb. <strong>L\u00e0m g\u00ec:<\/strong> \u0111\u1eb7t trigger jar-test l\u1ea1i (\u0111\u1ed5i m\u00e0u n\u01b0\u1edbc, \u0111\u1ed5i \u0111\u1ea7u ngu\u1ed3n, fail QCVN l\u1ea7n 1, l\u00f4 h\u00f3a l\u1ec7ch %). Khung tham chi\u1ebfu: <a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-xu-ly-nuoc-thai\/\">li\u1ec1u l\u01b0\u1ee3ng FeCl2 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/a> \u2014 lu\u00f4n hi\u1ec7u ch\u1ec9nh t\u1ea1i ch\u1ed7.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_4_Operator_%E2%80%9Cthay_duc_cham_them%E2%80%9D\"><\/span>N\u1ed7i \u0111au 4: Operator \u201cth\u1ea5y \u0111\u1ee5c ch\u00e2m th\u00eam\u201d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ca tr\u1ef1c th\u1ea5y \u0111\u1ee5c c\u00f2n cao \u2192 v\u1eb7n van coagulant\/polymer. Kh\u00f4ng \u0111o pH, kh\u00f4ng check line, kh\u00f4ng soi khu\u1ea5y. Overdose: b\u00f4ng m\u1ecbn kh\u00f3 l\u1eafng, b\u00f9n x\u1ed1p, pH ra c\u1eeda s\u1ed5. Lab ghi \u201c\u0111\u00e3 ch\u00e2m nhi\u1ec1u\u201d m\u00e0 ch\u1ec9 ti\u00eau v\u1eabn x\u1ea5u.<\/p>\n<p><strong>T\u1ed1n g\u00ec:<\/strong> h\u00f3a + polymer, filter press k\u1eb9t. <strong>L\u00e0m g\u00ec:<\/strong> bi\u00ean li\u1ec1u theo jar-test; alarm l\u01b0u l\u01b0\u1ee3ng b\u01a1m; l\u1ec7ch \u0111\u1ee5c th\u00ec <em>d\u1eebng \u2013 \u0111o \u2013 soi<\/em> r\u1ed3i m\u1edbi ch\u1ec9nh. \u201cTh\u1ea5y \u0111\u1ee5c ch\u00e2m th\u00eam\u201d l\u00e0 ph\u1ea3n x\u1ea1 \u0111\u1eaft tr\u00ean ETP.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_5_Chi_phi_bun_che_chi_phi_hoa_chat\"><\/span>N\u1ed7i \u0111au 5: Chi ph\u00ed b\u00f9n che chi ph\u00ed h\u00f3a ch\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Thu mua soi \u20ab\/kg. K\u1ef9 thu\u1eadt soi kg b\u00f9n \u01b0\u1edbt \/ m\u00b3, ch\u1edf, \u00e9p, polymer dewatering. Coagulant \u201cr\u1ebb\u201d nh\u01b0ng b\u00f9n nhi\u1ec1u, kh\u00f3 \u00e9p c\u00f3 th\u1ec3 \u0111\u1ed9i <strong>TCO<\/strong> cao h\u01a1n d\u00f2ng h\u00f3a \u0111\u1eaft h\u01a1n v\u00e0i ph\u1ea7n tr\u0103m nh\u01b0ng b\u00f4ng \u0111\u1eb7c, l\u1eafng nhanh.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n  <thead>\n    <tr>\n      <th>H\u1ea1ng m\u1ee5c TCO<\/th>\n      <th>Hay b\u1ecb b\u1ecf khi ch\u1ec9 soi gi\u00e1 h\u00f3a<\/th>\n      <th>G\u1ee3i \u00fd theo d\u00f5i<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>H\u00f3a keo t\u1ee5 \/ pH<\/td>\n      <td>Ch\u1ec9 so \u20ab\/kg l\u1ebb<\/td>\n      <td>kg ho\u1ea1t ch\u1ea5t \/ m\u00b3 theo COA + jar-test<\/td>\n    <\/tr>\n    <tr>\n      <td>B\u00f9n + logistics<\/td>\n      <td>Kh\u00f4ng quy \u0111\u1ed5i kg kh\u00f4<\/td>\n      <td>Filter cake, t\u1ea7n su\u1ea5t ch\u1edf<\/td>\n    <\/tr>\n    <tr>\n      <td>Polymer \/ aux<\/td>\n      <td>Coagulant d\u01b0 \u2192 polymer \u0103n theo<\/td>\n      <td>ml polymer \/ m\u00b3 theo ca<\/td>\n    <\/tr>\n    <tr>\n      <td>R\u1ee7i ro ch\u1ec9 ti\u00eau<\/td>\n      <td>Kh\u00f4ng g\u1eafn v\u00e0o TCO<\/td>\n      <td>S\u1ed1 l\u1ea7n tr\u01b0\u1ee3t COD\/TSS\/Cr6+ \/ qu\u00fd<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n<\/figure>\n<p>Ch\u00fang t\u00f4i kh\u00f4ng ni\u00eam gi\u00e1 l\u1ebb: b\u00e1o gi\u00e1 B2B theo nhu c\u1ea7u, n\u1ed3ng \u0111\u1ed9 COA v\u00e0 bao b\u00ec (can \/ phuy \/ b\u1ed3n \/ xe b\u1ed3n). So total cost \u2014 kh\u00f4ng so \u201cth\u00f9ng r\u1ebb nh\u1ea5t\u201d. Khi ch\u1ecdn coagulant s\u1eaft vs nh\u00f4m, xem th\u00eam <a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-vs-feso4-vs-pac\/\">so s\u00e1nh FeCl2, FeSO4 v\u00e0 PAC<\/a>.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_6_Cua_so_pH_keo_tu_bi_lech\"><\/span>N\u1ed7i \u0111au 6: C\u1eeda s\u1ed5 pH keo t\u1ee5 b\u1ecb l\u1ec7ch<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1ed7i coagulant c\u00f3 mi\u1ec1n pH \u01b0u ti\u00ean. pH v\u00e0o sai, probe b\u1ea9n, acid\/ki\u1ec1m sai th\u1ee9 t\u1ef1 \u2014 b\u00f4ng ch\u1eadm ho\u1eb7c keo t\u00e1i \u1ed5n \u0111\u1ecbnh d\u00f9 \u201c\u0111\u1ee7 ml\u201d. Polymer kh\u00f4ng \u201cb\u1eaft\u201d \u0111\u01b0\u1ee3c b\u00f4ng, c\u1eeda l\u1eafng \u0111\u1ee5c.<\/p>\n<p><strong>T\u1ed1n g\u00ec:<\/strong> acid\/x\u00fat ph\u1ee5, TSS\/COD. <strong>L\u00e0m g\u00ec:<\/strong> chu\u1ea9n pH meter theo ca; v\u1ebd l\u1ea1i th\u1ee9 t\u1ef1 ch\u00e2m; kh\u00f3a c\u1eeda s\u1ed5 pH tr\u00ean jar-test hi\u1ec7n h\u00e0nh tr\u01b0\u1edbc khi \u0111\u1ed5 th\u00eam h\u00f3a.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_7_Tron_kem_G-value_sai_canh_mon\"><\/span>N\u1ed7i \u0111au 7: Tr\u1ed9n k\u00e9m, G-value sai, c\u00e1nh m\u00f2n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>H\u00f3a \u0111\u00fang, pH \u0111\u00fang \u2014 rapid mix thi\u1ebfu G-value, v\u00f9ng ch\u1ebft, \u1ed1ng ch\u00e2m s\u00e1t th\u00e0nh, c\u00e1nh m\u00f2n ho\u1eb7c flocculation qu\u00e1 m\u1ea1nh l\u00e0m v\u1ee1 b\u00f4ng. Jar-test \u0111\u1eb9p v\u00ec c\u1ed1c lab \u0111\u01b0\u1ee3c tr\u1ed9n chu\u1ea9n; full scale ch\u1ec9 \u201cphun\u201d h\u00f3a v\u00e0o v\u00f9ng \u00eam. L\u1eafng k\u00e9m b\u1ecb hi\u1ec3u nh\u1ea7m l\u00e0 thi\u1ebfu coagulant \u2192 quay v\u1ec1 n\u1ed7i \u0111au 4.<\/p>\n<p><strong>T\u1ed1n g\u00ec:<\/strong> \u0111i\u1ec7n, HRT, t\u1ea3i l\u1ecdc. <strong>L\u00e0m g\u00ec:<\/strong> ki\u1ec3m v\u00f2ng quay, h\u00ecnh c\u00e1nh, \u0111i\u1ec3m ch\u00e2m; s\u1eeda c\u01a1 kh\u00ed tr\u01b0\u1edbc khi t\u0103ng g\u1ea5p \u0111\u00f4i li\u1ec1u.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Noi_dau_8_Chuoi_Cr6_hoac_Fenton_bi_cat_ngang\"><\/span>N\u1ed7i \u0111au 8: Chu\u1ed7i Cr6+ ho\u1eb7c Fenton b\u1ecb c\u1eaft ngang<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Xi m\u1ea1 \/ b\u1ec1 m\u1eb7t \/ d\u00f2ng ph\u1ee9c h\u1ee3p: kh\u1eed Cr6+ b\u1eb1ng Fe\u00b2\u207a c\u1ea7n pH v\u00e0 th\u1eddi gian, r\u1ed3i m\u1edbi keo t\u1ee5 \u2013 l\u1eafng. H\u1eadu Fenton\/AOP c\u0169ng c\u1ea7n g\u1ea1n hydroxide v\u00e0 trung h\u00f2a \u0111\u00fang c\u1eeda. \u201cKh\u1eed xong \u0111\u1ed5 ngay\u201d khi ph\u1ea3n \u1ee9ng ch\u01b0a \u0111\u1ee7 \u2192 COD\/m\u00e0u\/kim lo\u1ea1i d\u1ed9i; lab t\u01b0\u1edfng FeCl2 \u201ckh\u00f4ng m\u1ea1nh\u201d.<\/p>\n<p><strong>T\u1ed1n g\u00ec:<\/strong> l\u1eb7p batch, acid\/oxi h\u00f3a ph\u1ee5, r\u1ee7i ro Cr6+ c\u1eeda ra. <strong>L\u00e0m g\u00ec:<\/strong> r\u00e0 P&#038;ID stage, HRT, ORP\/pH n\u1ebfu c\u00f3. \u0110\u1ecbnh h\u01b0\u1edbng: <a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-xi-ma-khu-cr6\/\">kh\u1eed Cr6+ b\u1eb1ng FeCl2<\/a> and <a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-fenton-huong-dan\/\">FeCl2 Fenton<\/a> \u2014 v\u1eabn jar-test + an to\u00e0n H\u2082O\u2082\/acid theo nh\u00e0 m\u00e1y.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Checklist_chan_doan_truoc_khi_doi_hoa_chat\"><\/span>Checklist ch\u1ea9n \u0111o\u00e1n tr\u01b0\u1edbc khi \u0111\u1ed5i h\u00f3a ch\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n  <li>M\u1eabu c\u1eeda v\u00e0o \u2013 gi\u1eefa keo t\u1ee5 \u2013 c\u1eeda l\u1eafng \u2013 c\u1eeda ra (c\u00f9ng ca).<\/li>\n  <li>\u0110\u1ed1i chi\u1ebfu COA l\u00f4 \u0111ang ch\u1ea1y v\u1edbi jar-test c\u0169.<\/li>\n  <li>Hi\u1ec7u chu\u1ea9n pH (v\u00e0 ORP n\u1ebfu kh\u1eed\/Fenton).<\/li>\n  <li>Ki\u1ec3m b\u1ed3n, m\u00e0u dung d\u1ecbch, tu\u1ed5i t\u1ed3n \u2014 \u0111\u1eb7c bi\u1ec7t Fe(II).<\/li>\n  <li>Ghi l\u01b0u l\u01b0\u1ee3ng b\u01a1m th\u1ef1c (ml\/ph\u00fat), kh\u00f4ng ch\u1ec9 \u201cm\u1edf van\u201d.<\/li>\n  <li>Quan s\u00e1t b\u00f4ng: size, l\u1eafng, v\u00e1ng, b\u00f9n n\u1ed5i.<\/li>\n  <li>C\u00e1nh khu\u1ea5y, \u0111i\u1ec3m ch\u00e2m, t\u1eafc \u1ed1ng polymer\/coagulant.<\/li>\n  <li>Cr6+\/Fenton: x\u00e1c nh\u1eadn <em>th\u1ee9 t\u1ef1<\/em> and <em>th\u1eddi gian<\/em> stage.<\/li>\n  <li>Ch\u1ec9 sau \u0111\u00f3 m\u1edbi quy\u1ebft \u0111\u1ed5i coagulant ho\u1eb7c % th\u01b0\u01a1ng m\u1ea1i.<\/li>\n  <li>Thay \u0111\u1ed5i l\u1edbn \u2192 jar-test + 1\u20132 ca \u1ed5n \u0111\u1ecbnh tr\u01b0\u1edbc khi ch\u1ed1t mua m\u1edbi.<\/li>\n<\/ol>\n\n<h2><span class=\"ez-toc-section\" id=\"Jar-test_khi_nao_bat_buoc_lam_lai\"><\/span>Jar-test: khi n\u00e0o b\u1eaft bu\u1ed9c l\u00e0m l\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n  <li>\u0110\u1ed5i m\u00e3 SX \/ h\u00f3a \u0111\u1ea7u ngu\u1ed3n \/ nh\u00e0 th\u1ea7u gia c\u00f4ng.<\/li>\n  <li>\u0110\u1ed5i l\u00f4 coagulant (\u0111\u1eb7c bi\u1ec7t % COA l\u1ec7ch l\u00f4 chu\u1ea9n).<\/li>\n  <li>M\u00f9a m\u01b0a ho\u1eb7c conductivity\/\u0111\u1ed9 c\u1ee9ng b\u1ea5t th\u01b0\u1eddng.<\/li>\n  <li>Sau b\u1ea3o tr\u00ec c\u00e1nh khu\u1ea5y, b\u01a1m \u0111\u1ecbnh l\u01b0\u1ee3ng, van.<\/li>\n  <li>Tr\u01b0\u1ee3t QCVN ho\u1eb7c quan tr\u1eafc g\u1ea7n fail.<\/li>\n  <li>Chuy\u1ec3n gi\u1eefa PAC, FeSO4, FeCl2, <a href=\"https:\/\/hoachatlocthien.com\/en\/product\/fecl3-sat-iii-chloride\/\">FeCl3 l\u1ecfng<\/a> \u2014 kh\u00f4ng copy-paste ml c\u0169.<\/li>\n<\/ul>\n<p>Jar-test l\u00e0 s\u00e0ng l\u1ecdc: g\u1eafn SOP, MSDS v\u00e0 QCVN \u00e1p d\u1ee5ng cho nh\u00e0 m\u00e1y. Ch\u00fang t\u00f4i h\u1ed7 tr\u1ee3 \u0111\u1ecbnh h\u01b0\u1edbng th\u00ed nghi\u1ec7m theo ch\u00ednh s\u00e1ch k\u1ef9 thu\u1eadt \u2014 kh\u00f4ng thay s\u1ed1 lab n\u1ed9i b\u1ed9 b\u1eb1ng \u201cli\u1ec1u internet\u201d.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Khi_nao_FeCl2_phu_hop_%E2%80%94_khi_nao_khong\"><\/span>Khi n\u00e0o FeCl2 ph\u00f9 h\u1ee3p \u2014 khi n\u00e0o kh\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>C\u00e2n nh\u1eafc FeCl2 (ferrous chloride, CAS 7758-94-3)<\/strong> khi d\u00f2ng th\u1ea3i c\u1ea7n Fe(II): keo t\u1ee5 c\u00f3 ki\u1ec3m so\u00e1t h\u00f3a tr\u1ecb II, kh\u1eed Cr6+, trung gian Fenton\u2013AOP. L\u1ed9c Thi\u00ean cung \u1ee9ng dung d\u1ecbch <strong>15\u201330% theo COA l\u00f4<\/strong>, can \/ phuy \/ b\u1ed3n \/ xe b\u1ed3n, COA + MSDS on-request \u2014 <a href=\"https:\/\/hoachatlocthien.com\/en\/product\/fecl2-sat-ii-clorua\/\">FeCl2 \u2013 s\u1eaft II clorua (FECL2-1530)<\/a>.<\/p>\n<p><strong>Kh\u00f4ng \u00e9p FeCl2<\/strong> khi h\u1ec7 \u0111\u00e3 \u1ed5n v\u1edbi PAC\/polymer v\u00e0 kh\u00f4ng c\u1ea7n l\u1ef1c kh\u1eed Fe\u00b2\u207a; khi b\u1ec3 kh\u00f4ng gi\u1eef \u0111\u01b0\u1ee3c Fe(II); khi lab ch\u1ec9 \u0111\u1ecbnh Fe(III) ho\u1eb7c polymer kh\u00e1c t\u1ed1i \u01b0u h\u01a1n v\u1ec1 b\u00f4ng v\u00e0 b\u00f9n. \u201cC\u1ee9 s\u1eaft l\u00e0 \u0111\u01b0\u1ee3c\u201d d\u1ec5 fail TCO.<\/p>\n<p>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-xu-ly-nuoc-thai\/\">FeCl2 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/a>, <a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-vs-feso4-vs-pac\/\">ch\u1ecdn h\u00f3a ch\u1ea5t keo t\u1ee5 FeCl2 vs FeSO4 vs PAC<\/a>.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Tai_lieu_ky_thuat_lien_quan\"><\/span>T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt li\u00ean quan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n  <li><a href=\"https:\/\/hoachatlocthien.com\/en\/product\/fecl2-sat-ii-clorua\/\">S\u1eaft II clorua FeCl2 15\u201330% (CAS 7758-94-3) \u2014 b\u00e1o gi\u00e1 B2B<\/a><\/li>\n  <li><a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-xu-ly-nuoc-thai\/\">\u1ee8ng d\u1ee5ng &#038; li\u1ec1u tham chi\u1ebfu FeCl2 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/a><\/li>\n  <li><a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-vs-feso4-vs-pac\/\">So s\u00e1nh FeCl2 \u2013 FeSO4 \u2013 PAC<\/a><\/li>\n  <li><a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-fenton-huong-dan\/\">H\u01b0\u1edbng d\u1eabn nguy\u00ean t\u1eafc FeCl2 trong Fenton<\/a><\/li>\n  <li><a href=\"https:\/\/hoachatlocthien.com\/en\/fecl2-xi-ma-khu-cr6\/\">FeCl2 kh\u1eed Cr6+ ng\u00e0nh xi m\u1ea1<\/a><\/li>\n  <li><a href=\"https:\/\/hoachatlocthien.com\/en\/bon-chua-fecl2-vat-lieu\/\">B\u1ed3n ch\u1ee9a FeCl2 \u2014 g\u1ee3i \u00fd v\u1eadt li\u1ec7u<\/a><\/li>\n<\/ul>\n\n<h2><span class=\"ez-toc-section\" id=\"FAQ_%E2%80%93_Cau_hoi_thuong_gap\"><\/span>FAQ \u2013 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<h3><span class=\"ez-toc-section\" id=\"Vi_sao_da_cham_du_hoa_chat_nuoc_thai_van_duc_hoac_COD_cao\"><\/span>V\u00ec sao \u0111\u00e3 ch\u00e2m \u0111\u1ee7 h\u00f3a ch\u1ea5t n\u01b0\u1edbc th\u1ea3i v\u1eabn \u0111\u1ee5c ho\u1eb7c COD cao?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Th\u01b0\u1eddng v\u00ec pH l\u1ec7ch, jar-test kh\u00f4ng kh\u1edbp ngu\u1ed3n th\u1ea3i, tr\u1ed9n k\u00e9m, overdose c\u1ea3m t\u00ednh, ho\u1eb7c % COA l\u00f4 \u0111\u00e3 \u0111\u1ed5i. Ki\u1ec3m process tr\u01b0\u1edbc khi k\u1ebft lu\u1eadn \u201cthi\u1ebfu h\u00f3a\u201d.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"Nen_bat_dau_kiem_tra_gi_truoc_khi_doi_nha_cung_cap\"><\/span>N\u00ean b\u1eaft \u0111\u1ea7u ki\u1ec3m tra g\u00ec tr\u01b0\u1edbc khi \u0111\u1ed5i nh\u00e0 cung c\u1ea5p?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>COA l\u00f4 \u0111ang d\u00f9ng, pH meter, l\u01b0u l\u01b0\u1ee3ng b\u01a1m th\u1ef1c, quan s\u00e1t b\u00f4ng, tu\u1ed5i t\u1ed3n Fe(II), v\u00e0 jar-test song song l\u00f4 c\u0169 \u2013 l\u00f4 m\u1edbi tr\u00ean c\u00f9ng m\u1eabu. \u0110\u1ed5i supplier khi root cause \u0111\u00e3 r\u00f5.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"FeCl2_va_FeCl3_khac_nhau_the_nao_cho_nuoc_thai\"><\/span>FeCl2 v\u00e0 FeCl3 kh\u00e1c nhau th\u1ebf n\u00e0o cho n\u01b0\u1edbc th\u1ea3i?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>FeCl2 cung c\u1ea5p Fe\u00b2\u207a (kh\u1eed, Fenton, m\u1ed9t s\u1ed1 keo t\u1ee5 c\u00f3 ki\u1ec3m so\u00e1t h\u00f3a tr\u1ecb II). FeCl3 l\u00e0 Fe\u00b3\u207a \u2014 coagulant oxi h\u00f3a cao h\u01a1n, kh\u00f4ng thay vai tr\u00f2 kh\u1eed n\u1ec1n Fe(II). Ch\u1ecdn theo lab.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"FeCl2_co_thay_duoc_PAC_moi_luc_khong\"><\/span>FeCl2 c\u00f3 thay \u0111\u01b0\u1ee3c PAC m\u1ecdi l\u00fac kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u00f4ng. PAC h\u1ee3p nhi\u1ec1u h\u1ec7 keo t\u1ee5 h\u1eefu c\u01a1\/\u0111\u1ee5c th\u00f4ng d\u1ee5ng. FeCl2 h\u1ee3p khi c\u00f3 nhu c\u1ea7u Fe(II) ho\u1eb7c design lab ch\u1ec9 \u0111\u1ecbnh. \u00c9p thay m\u1ed9t chi\u1ec1u d\u1ec5 l\u1ec7ch pH, b\u00f9n v\u00e0 ch\u1ec9 ti\u00eau.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"CAS_va_nong_do_FeCl2_tham_chieu_la_gi\"><\/span>CAS v\u00e0 n\u1ed3ng \u0111\u1ed9 FeCl2 tham chi\u1ebfu l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>FeCl2 (ferrous chloride) CAS <strong>7758-94-3<\/strong>. H\u1ea1ng m\u1ee5c L\u1ed9c Thi\u00ean: dung d\u1ecbch <strong>15\u201330% theo COA l\u00f4<\/strong> (SKU FECL2-1530) \u2014 kh\u00f4ng d\u00f9ng % \u201cchung chung\u201d thay phi\u1ebfu ph\u00e2n t\u00edch.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"Khi_nao_can_jar-test_lai\"><\/span>Khi n\u00e0o c\u1ea7n jar-test l\u1ea1i?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed5i ngu\u1ed3n th\u1ea3i, m\u00f9a, l\u00f4 coagulant, thi\u1ebft b\u1ecb tr\u1ed9n\/ch\u00e2m, ho\u1eb7c sau tr\u01b0\u1ee3t ch\u1ec9 ti\u00eau. C\u0169ng jar-test khi chuy\u1ec3n gi\u1eefa PAC, FeSO4, FeCl2, FeCl3.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"Lam_sao_nhan_COA_MSDS_va_bao_gia_B2B\"><\/span>L\u00e0m sao nh\u1eadn COA, MSDS v\u00e0 b\u00e1o gi\u00e1 B2B?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Hotline <strong>0979 891 929<\/strong> ho\u1eb7c form trang s\u1ea3n ph\u1ea9m. B\u00e1o gi\u00e1 on-request theo n\u1ed3ng \u0111\u1ed9, bao b\u00ec v\u00e0 \u0111i\u1ec3m giao KCN \u2014 kh\u00f4ng ni\u00eam gi\u00e1 l\u1ebb c\u00f4ng khai.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"FeCl2_co_dung_trong_Fenton_va_khu_Cr6_khong\"><\/span>FeCl2 c\u00f3 d\u00f9ng trong Fenton v\u00e0 kh\u1eed Cr6+ kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3 trong nhi\u1ec1u quy tr\u00ecnh khi lab v\u00e0 an to\u00e0n cho ph\u00e9p: Fe\u00b2\u207a kh\u1edfi Fenton v\u1edbi H\u2082O\u2082; Fe\u00b2\u207a kh\u1eed Cr6+ \u1edf pH\/HRT ph\u00f9 h\u1ee3p. Lu\u00f4n PPE, MSDS v\u00e0 jar-test \u2014 kh\u00f4ng copy li\u1ec1u internet v\u00e0o plant.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Ket_luan_va_buoc_tiep_theo\"><\/span>K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>ETP fail d\u00f9 \u201c\u0111\u00e3 ch\u00e2m h\u00f3a\u201d h\u1ea7u nh\u01b0 k\u1ec3 c\u00e2u chuy\u1ec7n v\u1eadn h\u00e0nh: COA, Fe\u00b2\u207a t\u1ed3n kho, jar-test m\u1ed3 c\u00f4i, ch\u00e2m c\u1ea3m t\u00ednh, TCO b\u00f9n, pH, khu\u1ea5y, chu\u1ed7i kh\u1eed\/Fenton b\u1ecb c\u1eaft. X\u1eed checklist r\u1ebb v\u00e0 ch\u1eafc h\u01a1n vi\u1ec7c \u0111\u1ed5 th\u00eam h\u00f3a \u201ccho ch\u1eafc\u201d.<\/p>\n<p>Khi b\u00e0i to\u00e1n th\u1eadt s\u1ef1 c\u1ea7n <strong>ferrous chloride \/ FeCl2 CAS 7758-94-3<\/strong>, L\u1ed9c Thi\u00ean cung \u1ee9ng B2B theo COA, MSDS\/COA on-request, h\u1ed7 tr\u1ee3 \u0111\u1ecbnh h\u01b0\u1edbng jar-test trong gi\u1edbi h\u1ea1n ch\u00ednh s\u00e1ch \u2014 kh\u00f4ng h\u1ee9a \u201cm\u1ed9t h\u00f3a ch\u1eefa m\u1ecdi n\u01b0\u1edbc th\u1ea3i\u201d.<\/p>\n<p><strong>B\u01b0\u1edbc ti\u1ebfp theo:<\/strong> g\u1eedi ng\u00e0nh, ch\u1ec9 ti\u00eau \u0111ang tr\u01b0\u1ee3t (COD, TSS, m\u00e0u, Cr6+\u2026), h\u00f3a \u0111ang d\u00f9ng v\u00e0 % COA g\u1ea7n nh\u1ea5t \u2192 t\u01b0 v\u1ea5n ph\u1ea3n h\u1ed3i ph\u01b0\u01a1ng \u00e1n FeCl2 ho\u1eb7c ph\u01b0\u01a1ng \u00e1n kh\u00e1c n\u1ebfu lab kh\u00f4ng ch\u1ec9 \u0111\u1ecbnh Fe(II).<\/p>\n<p>Hotline RFQ: <strong>0979 891 929<\/strong> \u00b7 S\u1ea3n ph\u1ea9m: <a href=\"https:\/\/hoachatlocthien.com\/en\/product\/fecl2-sat-ii-clorua\/\">FeCl2 \u2013 S\u1eaft II Clorua (FECL2-1530)<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>H\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i \u0111\u00e3 ch\u00e2m \u0111\u1ee7 h\u00f3a ch\u1ea5t v\u1eabn fail th\u01b0\u1eddng do v\u1eadn h\u00e0nh: pH l\u1ec7ch, jar-test c\u0169, ch\u00e2m \u201cb\u1ecbt m\u1eaft\u201d, oxi h\u00f3a Fe\u00b2\u207a, chi ph\u00ed b\u00f9n \u2014 ch\u1ee9 kh\u00f4ng ch\u1ec9 v\u00ec \u201cthi\u1ebfu h\u00f3a ch\u1ea5t\u201d. Khi c\u1ea7n s\u1eaft (II) \u0111\u1ec3 keo t\u1ee5\/kh\u1eed, h\u1ed7 tr\u1ee3 Fenton\/AOP ho\u1eb7c kh\u1eed Cr6+, c\u00e2n nh\u1eafc FeCl2 (ferrous [&#8230;]\n","protected":false},"author":6,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-9413","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"acf":[],"rank_math_title":"H\u1ec7 Th\u1ed1ng X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i \u0110\u00e3 Ch\u00e2m H\u00f3a Ch\u1ea5t M\u00e0 V\u1eabn Fail: 8 N\u1ed7i \u0110au V\u1eadn H\u00e0nh | L\u1ed9c Thi\u00ean","rank_math_description":"Ch\u1ea9n \u0111o\u00e1n 8 n\u1ed7i \u0111au v\u1eadn h\u00e0nh ETP khi \u0111\u00e3 ch\u00e2m h\u00f3a ch\u1ea5t v\u1eabn tr\u01b0\u1ee3t ch\u1ec9 ti\u00eau: jar-test, pH, b\u00f9n, Fe\u00b2\u207a oxi h\u00f3a. FeCl2 CAS 7758-94-3 B2B + COA\/MSDS \u2014 L\u1ed9c Thi\u00ean 0979 891 929.","rank_math_focus_keyword":"x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i h\u00f3a ch\u1ea5t","_links":{"self":[{"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/posts\/9413","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=9413"}],"version-history":[{"count":0,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/posts\/9413\/revisions"}],"wp:attachment":[{"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/media?parent=9413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/categories?post=9413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/en\/wp-json\/wp\/v2\/tags?post=9413"}],"curies":[{"name":"WordPress","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}