{"id":5474,"date":"2022-08-30T16:36:28","date_gmt":"2022-08-30T09:36:28","guid":{"rendered":"https:\/\/arkvietnam.com\/?p=5474"},"modified":"2025-02-24T10:30:46","modified_gmt":"2025-02-24T03:30:46","slug":"guide-to-wood-processing-wastewater-treatment","status":"publish","type":"post","link":"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/","title":{"rendered":"Guide to wood processing wastewater treatment"},"content":{"rendered":"<strong>X\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ch\u1ebf bi\u1ebfn g\u1ed7<\/strong> l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t v\u1ea5n \u0111\u1ec1 \u00f4 nhi\u1ec5m \u0111\u1eb7t bi\u1ec7t l\u00e0 n\u01b0\u1edbc th\u1ea3i ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn g\u1ed7. Doanh nghi\u1ec7p c\u1ea7n l\u1ef1a ch\u1ecdn c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i x\u01b0\u1edfng ch\u1ebf bi\u1ebfn g\u1ed7 sao cho ph\u00f9 h\u1ee3p v\u00e0 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd cao.\r\n\r\n<img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-5479 aligncenter\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-1024x614.jpg\" alt=\"nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t ch\u1ebf bi\u1ebfn g\u1ed7\" width=\"1020\" height=\"612\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-1024x614.jpg 1024w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-510x306.jpg 510w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-300x180.jpg 300w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-768x460.jpg 768w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-1536x920.jpg 1536w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-18x12.jpg 18w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go-600x359.jpg 600w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nha-may-san-xuat-che-bien-go.jpg 2048w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\r\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\">Table of Contents<\/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: #999;color:#999\" 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: #999;color:#999\" 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:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Vi_sao_phai_xu_ly_nuoc_thai_che_bien_go\" >Why treat wood processing wastewater?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Nguyen_nhan_gay_o_nhiem_tu_nuoc_thai_che_bien_go\" >Causes of pollution from wood processing wastewater<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Cach_xu_ly_nuoc_thai_che_bien_go\" >How to treat wood processing wastewater?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Qua_trinh_yem_khi_trong_qua_trinh_xu_ly_nuoc_thai_xuong_che_bien_go\" >Anaerobic process in the treatment process\u00a0Wood processing workshop wastewater<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Qua_trinh_thieu_khi_Anoxic\" >Anoxic process<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Qua_trinh_hieu_khi_Aerotank\" >Aerotank process<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Be_lang\" >Clarifier<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#May_ep_bun_nuoc_thai_che_bien_go\" >Wood processing sewage sludge press machine<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/arkvietnam.com\/en\/huong-dan-xu-ly-nuoc-thai-che-bien-go\/#Loi_ket\" >Epilogue<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Vi_sao_phai_xu_ly_nuoc_thai_che_bien_go\"><\/span>Why treat wood processing wastewater?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\nThe wood processing industry has become Vietnam's fifth-largest export industry after crude oil, textiles, footwear, and seafood. Vietnam has become the leading wooden furniture exporter in Southeast Asia. The quality of Vietnamese wood products has always been improved, making it competitive with other countries in the region.\r\n\r\n<img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-5480 aligncenter\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-1024x615.jpg\" alt=\"G\u1ed7 ch\u01b0a qua ch\u1ebf bi\u1ebfn\" width=\"1020\" height=\"613\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-1024x615.jpg 1024w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-510x306.jpg 510w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-300x180.jpg 300w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-768x461.jpg 768w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-1536x922.jpg 1536w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-18x12.jpg 18w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien-600x360.jpg 600w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/go-chua-qua-che-bien.jpg 2048w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\r\n\r\nG\u1ed7 mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch cho con ng\u01b0\u1eddi, g\u1ed7 l\u00e0m n\u00ean nh\u00e0, b\u00e0n gh\u1ebf, c\u00e1c d\u1ee5ng c\u1ee5 thi\u1ebft y\u1ebfu. \u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111\u00f3, nhi\u1ec1u c\u00f4ng ty ch\u1ebf bi\u1ebfn g\u1ed7 \u0111\u00e3 h\u00ecnh th\u00e0nh ph\u00e1t tri\u1ec3n, s\u1ea3n xu\u1ea5t ch\u1ebf bi\u1ebfn n\u00ean c\u00e1c d\u1ee5ng c\u1ee5 t\u1eeb g\u1ed7.\r\n\r\nNgo\u00e0i nh\u1eefng l\u1ee3i \u00edch m\u00e0 ng\u00e0nh mang l\u1ea1i n\u01b0\u1edbc th\u1ea3i ch\u1ebf bi\u1ebfn g\u1ed7 c\u1ea7n x\u1eed l\u00fd b\u1edfi v\u00ec: Ng\u00e0nh g\u1ed7 c\u00f2n g\u00e2y ra nh\u1eefng v\u1ea5n \u0111\u1ec1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi nh\u01b0 n\u01b0\u1edbc th\u1ea3i c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed9c h\u1ea1i cao, ch\u1ea5t th\u1ea3i nguy h\u1ea1i, ch\u1ea5t th\u1ea3i r\u1eafn, b\u1ee5i ,\u2026\r\n<h2><span class=\"ez-toc-section\" id=\"Nguyen_nhan_gay_o_nhiem_tu_nuoc_thai_che_bien_go\"><\/span>Causes of pollution from wood processing wastewater<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<ul>\r\n \t<li>Boiling wood, impregnating wood, the amount of wastewater is small, but it is toxic because it contains impregnation chemicals and ligin.<\/li>\r\n \t<li>Wastewater generated from the hot bending process<\/li>\r\n \t<li>Wastewater from solvent treatment system, paint dust using leaking steam transmission system, boiler cleaning<\/li>\r\n \t<li>The composition of production wastewater: production wastewater contains substances such as boric, borate, notric, suspended residue, ligin, oil from wood, and paint, ...<\/li>\r\n<\/ul>\r\n<figure id=\"attachment_5481\" aria-describedby=\"caption-attachment-5481\" style=\"width: 1020px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5481 size-large\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-1024x616.jpg\" alt=\"Untreated wastewater\" width=\"1020\" height=\"614\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-1024x616.jpg 1024w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-510x307.jpg 510w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-300x180.jpg 300w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-768x462.jpg 768w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-1536x923.jpg 1536w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-18x12.jpg 18w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go-600x361.jpg 600w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/nuoc-thai-che-bien-go.jpg 2048w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><figcaption id=\"caption-attachment-5481\" class=\"wp-caption-text\"><em>Untreated wastewater<\/em><\/figcaption><\/figure>\r\n\r\nWoodworking wastewater contains high concentrations of pollutants, mainly from:\r\n<ul>\r\n \t<li>Arsenic.<\/li>\r\n \t<li>Biochemical oxygen demand (BOD).<\/li>\r\n \t<li>Chemical oxygen demand (COD).<\/li>\r\n \t<li>Copper (Cu).<\/li>\r\n \t<li>Chromium (Cr).<\/li>\r\n \t<li>pH (abnormally high or low).<\/li>\r\n \t<li>Phenol.<\/li>\r\n \t<li>Grease.<\/li>\r\n \t<li>Suspended Solids (TSS).<\/li>\r\n<\/ul>\r\nThus, wastewater generated during wood processing has a high concentration of pollutants. If not treated, it will cause serious pollution to the environment.\r\n<h2><span class=\"ez-toc-section\" id=\"Cach_xu_ly_nuoc_thai_che_bien_go\"><\/span>How to treat wood processing wastewater?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\nHi\u1ec7n nay ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i x\u01b0\u1edfng ch\u1ebf bi\u1ebfn g\u1ed7 \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn \u0111\u00f3 l\u00e0 c\u00f4ng ngh\u1ec7 AAO. <strong>C\u00f4ng ngh\u1ec7 AAO<\/strong> l\u00e0 qu\u00e1 tr\u00ecnh li\u00ean ti\u1ebfp \u1ee9ng d\u1ee5ng nhi\u1ec1u h\u1ec7 vi sinh v\u1eadt kh\u00e1c nhau: y\u1ebfm kh\u00ed, thi\u1ebfu kh\u00ed, hi\u1ebfu kh\u00ed \u0111\u1ec3 x\u1eed l\u00fd ch\u1ea5t th\u1ea3i. D\u01b0\u1edbi t\u00e1c d\u1ee5ng ph\u00e2n gi\u1ea3i c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 c\u1ee7a h\u1ec7 vi sinh v\u1eadt m\u00e0 ch\u1ea5t \u00f4 nhi\u1ec5m \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u01b0\u1edbc khi th\u1ea3i ra m\u00f4i tr\u01b0\u1eddng.\r\n\r\n<figure id=\"attachment_5482\" aria-describedby=\"caption-attachment-5482\" style=\"width: 480px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5482 size-full\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/so-do-xu-ly-nuoc-thai-che-bien-go.png\" alt=\"Diagram of wood processing wastewater treatment\" width=\"480\" height=\"640\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/so-do-xu-ly-nuoc-thai-che-bien-go.png 480w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/so-do-xu-ly-nuoc-thai-che-bien-go-225x300.png 225w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/so-do-xu-ly-nuoc-thai-che-bien-go-9x12.png 9w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><figcaption id=\"caption-attachment-5482\" class=\"wp-caption-text\"><em>Diagram of wood processing wastewater treatment<\/em><\/figcaption><\/figure>\r\n<h3><span class=\"ez-toc-section\" id=\"Qua_trinh_yem_khi_trong_qua_trinh_xu_ly_nuoc_thai_xuong_che_bien_go\"><\/span>Anaerobic process in the treatment process\u00a0Wood processing workshop wastewater<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<strong>1 &#8211; <a href=\"https:\/\/vi.wikipedia.org\/wiki\/Th%E1%BB%A7y_ph%C3%A2n\" target=\"_blank\" rel=\"noopener\">Th\u1ee7y ph\u00e2n<\/a>:<\/strong> Trong giai \u0111o\u1ea1n n\u00e0y, d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a enzyme do vi khu\u1ea9n ti\u1ebft ra, c\u00e1c ph\u1ee9c ch\u1ea5t v\u00e0 c\u00e1c ch\u1ea5t kh\u00f4ng tan chuy\u1ec3n h\u00f3a th\u00e0nh c\u00e1c ch\u1ea5t \u0111\u01a1n gi\u1ea3n,qu\u00e1 tr\u00ecnh n\u00e0y x\u1ea3y ra ch\u1eadm. T\u1ed1c \u0111\u1ed9 ph\u00e2n h\u1ee7y ph\u1ee5 thu\u1ed9c v\u00e0o pH, k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 \u0111\u1eb7c t\u00ednh d\u1ec5 ph\u00e2n h\u1ee7y c\u1ee7a c\u01a1 ch\u1ea5t.\r\n\r\n<strong>2 &#8211; Acid h\u00f3a: <\/strong>Trong giai \u0111o\u1ea1n n\u00e0y, vi khu\u1ea9n l\u00ean men chuy\u1ec3n h\u00f3a c\u00e1c ch\u1ea5t h\u00f2a tan th\u00e0nh ch\u1ea5t \u0111\u01a1n gi\u1ea3n nh\u01b0 acid b\u00e9o d\u1ec5 bay h\u01a1i, methanol, CO2, H2,\u2026.sinh kh\u1ed1i m\u1edbi s\u1ef1 h\u00ecnh th\u00e0nh c\u00f3 th\u1ec3 l\u00e0m pH gi\u1ea3m xu\u1ed1ng 4.\r\n\r\n<strong>3 &#8211; Acetic h\u00f3a: <\/strong>Vi khu\u1ea9n acetic chuy\u1ec3n h\u00f3a c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a giai \u0111o\u1ea1n acid h\u00f3a th\u00e0nh acetate, H2, CO2 v\u00e0 sinh kh\u1ed5i m\u1edbi.\r\n\r\nTrong 3 giai \u0111o\u1ea1n th\u1ee7y ph\u00e2n, acid h\u00f3a v\u00e0 acetic h\u00f3a COD h\u1ea7u nh\u01b0 kh\u00f4ng gi\u1ea3m, COD ch\u1ec9 gi\u1ea3m trong giai \u0111o\u1ea1n methane.\r\n<h3><span class=\"ez-toc-section\" id=\"Qua_trinh_thieu_khi_Anoxic\"><\/span>Anoxic process<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\nWastewater contains compounds N, P. In the Anoxic tank, under anoxic conditions, the anoxic microflora develops to treat N and P through the process of nitrification and phosphoryl.\r\n<h3><span class=\"ez-toc-section\" id=\"Qua_trinh_hieu_khi_Aerotank\"><\/span>Aerotank process<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\nQu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y hi\u1ebfu kh\u00ed d\u1ef1a v\u00e0o ho\u1ea1t \u0111\u1ed9ng s\u1ed1ng c\u1ee7a vi sinh v\u1eadt hi\u1ebfu kh\u00ed \u0111\u1eb7c bi\u1ec7t l\u00e0 vi khu\u1ea9n hi\u1ebfu kh\u00ed, ch\u00fang s\u1ebd s\u1eed d\u1ee5ng oxy h\u00f2a tan c\u00f3 trong n\u01b0\u1edbc \u0111\u1ec3 ph\u00e2n gi\u1ea3i ch\u1ea5t h\u1eefu c\u01a1 c\u00f3 trong n\u01b0\u1edbc th\u1ea3i, c\u00e1c vi sinh v\u1eadt Pseudomonas Denitrificans, Baccillus,\u2026 s\u1eed kh\u1eed Nitrat th\u00e0nh N2. \u0110i\u1ec1u ki\u1ec7n chung cho vi khu\u1ea9n nitrat h\u00f3a pH =5,5 -9 nh\u01b0ng t\u1ed1t nh\u1ea5t l\u00e0 pH = 7,5, khi pH &lt;7 th\u00ec vi khu\u1ea9n ph\u00e1t tri\u1ec3n ch\u1eadm, oxy h\u00f2a tan c\u1ea7n l\u00e0 0,5 mg\/l, nhi\u1ec7t \u0111\u1ed9 t\u1eeb 5 -40\u00b0C.\r\n\r\nQu\u00e1 tr\u00ecnh n\u00e0y x\u1ea3y ra nhanh n\u1ebfu c\u00f3 s\u1ee5c kh\u00ed, s\u1ebd l\u00e0m t\u0103ng l\u01b0\u1ee3ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a vi sinh v\u1eadt b\u1eb1ng c\u00e1ch t\u0103ng b\u00f9n ho\u1ea1t t\u00ednh, \u0111i\u1ec1u ch\u1ec9nh h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t dinh d\u01b0\u1ee1ng v\u00e0 \u1ee9c ch\u1ebf c\u00e1c ch\u1ea5t \u0111\u1ed9c l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a vi sinh v\u1eadt. Ngo\u00e0i ra, nhi\u1ec7t \u0111\u1ed9 th\u00edch h\u1ee3p cho qu\u00e1 tr\u00ecnh x\u1eed l\u00fd l\u00e0 20\u00b0C \u2013 40\u00b0C, t\u1ed1i \u01b0u l\u00e0 25 \u2013 30\u00b0C.\r\n\r\nTrong b\u1ec3 Aerotank c\u00f2n c\u00f3 th\u00eam v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac nh\u1eb1m t\u0103ng c\u01a1 h\u1ed9i ti\u1ebfp x\u00fac gi\u1eefa vi sinh v\u1eadt v\u1edbi n\u01b0\u1edbc th\u1ea3i, \u0111\u1ed3ng th\u1eddi l\u00e0 m\u00f4i tr\u01b0\u1eddng \u0111\u1ec3 vi sinh v\u1eadt ph\u00e1t tri\u1ec3n v\u00e0 d\u00ednh b\u00e1m. Oxy h\u00f2a tan s\u1ebd \u0111\u01b0\u1ee3c cung c\u1ea5p t\u1eeb m\u00e1y th\u1ed5i kh\u00ed qua h\u1ec7 th\u1ed1ng \u1ed1ng ph\u00e2n ph\u1ed1i. Hi\u1ec7u su\u1ea5t lo\u1ea1i b\u1ecf BOD c\u1ee7a Aerotank gi\u1ea3m kho\u1ea3ng 80 \u2013 85% so v\u1edbi \u0111\u1ea7u v\u00e0o. Do v\u1eady \u0111\u1ebfn l\u00fac n\u00e0y, n\u01b0\u1edbc th\u1ea3i h\u1ea7u nh\u01b0 \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch. N\u01b0\u1edbc th\u1ea3i sau khi ra kh\u1ecfi b\u1ec3 hi\u1ebfu kh\u00ed Aerotank s\u1ebd ch\u1ea3y tr\u00e0n qua b\u1ec3 l\u1eafng 2.\r\n<h3><span class=\"ez-toc-section\" id=\"Be_lang\"><\/span>Clarifier<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\nN\u01b0\u1edbc th\u1ea3i ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c d\u1eabn \u0111\u1ebfn B\u1ec3 l\u1eafng 2 \u0111\u1ec3 t\u00e1ch b\u00f9n sinh h\u1ecdc. \u1ede \u0111\u00e2y ph\u1ea7n l\u1edbn b\u00f9n sinh h\u1ecdc (b\u00f9n ho\u1ea1t t\u00ednh) c\u00f3 trong n\u01b0\u1edbc th\u1ea3i s\u1ebd \u0111\u01b0\u1ee3c l\u1eafng xu\u1ed1ng \u0111\u00e1y thi\u1ebft b\u1ecb. M\u1ed9t ph\u1ea7n b\u00f9n sau khi l\u1eafng s\u1ebd \u0111\u01b0\u1ee3c tu\u1ea7n ho\u00e0n v\u1ec1 b\u1ec3 sinh h\u1ecdc hi\u1ebfu kh\u00ed. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o l\u01b0\u1ee3ng b\u00f9n lu\u00f4n \u1ed5n \u0111\u1ecbnh cho vi sinh v\u1eadt ho\u1ea1t \u0111\u1ed9ng. Ph\u1ea7n b\u00f9n d\u01b0 s\u1ebd \u0111\u01b0\u1ee3c x\u1eed l\u00fd qua <a href=\"\/en\/product-category\/sludge-dewatering-machine\/\" target=\"_blank\" rel=\"noopener\">sludge dewatering machines<\/a>.\r\n\r\nPh\u1ea7n n\u01b0\u1edbc trong sau khi qua b\u1ec3 l\u1eafng s\u1ebd ch\u1ea3y qua b\u1ec3 kh\u1eed tr\u00f9ng, h\u00f3a ch\u1ea5t kh\u1eed tr\u00f9ng (dung d\u1ecbch NaOCl 10%) \u0111\u01b0\u1ee3c b\u01a1m \u0111\u1ed3ng th\u1eddi v\u00e0o b\u1ec3 \u0111\u1ec3 x\u1eed l\u00fd tri\u1ec7t \u0111\u1ec3 c\u00e1c vi tr\u00f9ng g\u00e2y b\u1ec7nh nh\u01b0 E.Coli, Coliform,\u2026 N\u01b0\u1edbc th\u1ea3i sau khi qua b\u1ec3 kh\u1eed tr\u00f9ng \u0111\u1ea1t quy chu\u1ea9n <a href=\"https:\/\/emas.tdtu.edu.vn\/sites\/emas\/files\/EMAS\/V%C4%83n%20b%E1%BA%A3n%20ph%C3%A1p%20lu%E1%BA%ADt\/qcvn-40-n%C6%B0%E1%BB%9Bc-th%E1%BA%A3i-cn.pdf\" target=\"_blank\" rel=\"noopener\">QCVN 40:2011\/BTNMT<\/a>, c\u1ed9t A v\u00e0 \u0111\u01b0\u1ee3c x\u1ea3 ra c\u1ed1ng tho\u00e1t n\u01b0\u1edbc chung. Ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh x\u1eed l\u00fd.\r\n<h3><span class=\"ez-toc-section\" id=\"May_ep_bun_nuoc_thai_che_bien_go\"><\/span>Wood processing sewage sludge press machine<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\nNowadays, businesses use mud presses mainly. To replace the old technology is to use a sludge drying yard in wastewater treatment for wood processing plants. Because of occupying a large area of land for treatment, not to mention waiting time for the sludge to dry.\r\n\r\n<figure id=\"attachment_5483\" aria-describedby=\"caption-attachment-5483\" style=\"width: 1020px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5483 size-large\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-1024x614.jpg\" alt=\"sludge dewatering machine is applied during processing\" width=\"1020\" height=\"612\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-1024x614.jpg 1024w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-510x306.jpg 510w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-300x180.jpg 300w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-768x460.jpg 768w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-1536x920.jpg 1536w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-18x12.jpg 18w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go-600x359.jpg 600w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/may-ep-bun-nuoc-thai-che-bien-go.jpg 2048w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><figcaption id=\"caption-attachment-5483\" class=\"wp-caption-text\"><em>sludge dewatering machine is applied during processing<\/em><\/figcaption><\/figure>\r\n\r\n&nbsp;\r\n\r\n<figure id=\"attachment_5484\" aria-describedby=\"caption-attachment-5484\" style=\"width: 1020px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5484 size-large\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-1024x617.jpg\" alt=\"B\u00f9n th\u1ea3i ch\u1ebf bi\u1ebfn g\u1ed7 khi \u0111\u01b0\u1ee3c \u00e9p qua m\u00e1y \u00e9p b\u00f9n\" width=\"1020\" height=\"615\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-1024x617.jpg 1024w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-510x307.jpg 510w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-300x181.jpg 300w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-768x462.jpg 768w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-1536x925.jpg 1536w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-18x12.jpg 18w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep-600x361.jpg 600w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2022\/08\/bun-thai-che-bien-go-sau-khi-ep.jpg 2048w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><figcaption id=\"caption-attachment-5484\" class=\"wp-caption-text\"><em>Wood processing waste sludge when pressed through the decanter centrifuge of ARK Vietnam<\/em><\/figcaption><\/figure>\r\n<h2><span class=\"ez-toc-section\" id=\"Loi_ket\"><\/span>Epilogue<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<a href=\"\/en\/guide-to-wood-processing-wastewater-treatment\/\" target=\"_blank\" rel=\"noopener\">X\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ng\u00e0nh g\u1ed7<\/a> n\u00f3i chung l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u1ea7n thi\u1ebft v\u00e0 c\u1ea5p b\u00e1ch. Gi\u00fap doanh nghi\u1ec7p b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ph\u00e1p lu\u1eadt n\u1ebfu \u0111\u1ec3 n\u01b0\u1edbc th\u1ea3i ch\u01b0a x\u1eed l\u00fd ra ngo\u00e0i l\u00e0m \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.\r\n\r\nKhi x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ch\u1ebf bi\u1ebfn g\u1ed7, n\u1ebfu Doanh nghi\u1ec7p c\u1ea7n <strong>mua <a href=\"\/en\/product-category\/sludge-dewatering-machine\/\" target=\"_blank\" rel=\"noopener\">sludge dewatering machines<\/a> th\u1ea3i ch\u1ebf bi\u1ebfn g\u1ed7<\/strong><em>(<a href=\"\/en\/product-2\/decanter-centrifuge\/\" target=\"_blank\" rel=\"noopener\">DECANTER CENTRIFUGE<\/a>,<a href=\"\/en\/product-2\/multi-disk-type-screw-press\/\" target=\"_blank\" rel=\"noopener\"> Screw Press<\/a>, <a href=\"\/en\/product-2\/belt-press\/\" target=\"_blank\" rel=\"noopener\">belt press<\/a>)<\/em>\u00a0vui l\u00f2ng li\u00ean h\u1ec7 <strong>ARK Vietnam<\/strong> \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n nhi\u1ec7t t\u00ecnh v\u00e0 chu \u0111\u00e1o.\r\n\r\n&nbsp;","protected":false},"excerpt":{"rendered":"<p>X\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ch\u1ebf bi\u1ebfn g\u1ed7 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t v\u1ea5n \u0111\u1ec1 \u00f4 nhi\u1ec5m \u0111\u1eb7t bi\u1ec7t l\u00e0 n\u01b0\u1edbc th\u1ea3i ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn g\u1ed7. Doanh nghi\u1ec7p c\u1ea7n l\u1ef1a ch\u1ecdn c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i x\u01b0\u1edfng ch\u1ebf bi\u1ebfn g\u1ed7 sao cho ph\u00f9 h\u1ee3p v\u00e0 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd cao&#8230;.<\/p>","protected":false},"author":1,"featured_media":5479,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[176],"class_list":["post-5474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","tag-cong-nghe-aao"],"acf":[],"_links":{"self":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/posts\/5474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/comments?post=5474"}],"version-history":[{"count":0,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/posts\/5474\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/media\/5479"}],"wp:attachment":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=5474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=5474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=5474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}