{"id":9421,"date":"2026-07-01T06:52:45","date_gmt":"2026-06-30T23:52:45","guid":{"rendered":"https:\/\/airfiltech.vn\/?p=9421"},"modified":"2026-09-10T13:21:24","modified_gmt":"2026-09-10T06:21:24","slug":"exhaust-treatment-and-odor-control-at-recycling-facilities-practical-solutions","status":"publish","type":"post","link":"https:\/\/airfiltech.vn\/en\/exhaust-treatment-and-odor-control-at-recycling-facilities-practical-solutions\/","title":{"rendered":"Exhaust Treatment and Odor Control at Recycling Facilities: Practical Solutions"},"content":{"rendered":"<p>Plastic, paper, metal, and e-waste recycling facilities each generate distinct pollutant profiles. Compliance with Vietnam&#8217;s 2020 Law on Environmental Protection and relevant QCVN standards requires pollutant-specific treatment strategies.<\/p>\n<h2>1. Pollution Sources by Recycling Type<\/h2>\n<h3>Plastic Recycling<\/h3>\n<ul>\n<li>VOCs (xylene, benzene, styrene) released during melting and pelletizing<\/li>\n<li>Odor from mixed plastics (polyolefin, ABS, PVC)<\/li>\n<li>Fine plastic dust generated during grinding<\/li>\n<\/ul>\n<h3>Paper \/ Carton Recycling<\/h3>\n<ul>\n<li>Paper dust and cellulose fibers, a respiratory irritant<\/li>\n<li>Odor from residual ink and bleaching chemicals<\/li>\n<li>High humidity during wet processing<\/li>\n<\/ul>\n<h3>Metal Recycling<\/h3>\n<ul>\n<li>Heavy metal dust (lead, zinc, copper, cadmium) from grinding and sorting<\/li>\n<li>Smoke and metal oxides from electric arc furnace (EAF) melting<\/li>\n<li>Coarse dust and noise from cutting and pressing<\/li>\n<\/ul>\n<h3>E-Waste Recycling<\/h3>\n<ul>\n<li>Precious metals (gold, silver, palladium) and toxic metals (lead, mercury, cadmium)<\/li>\n<li>Brominated flame retardant compounds<\/li>\n<li>Dioxin and furan risk from improper thermal processing<\/li>\n<\/ul>\n<h2>2. Solutions by Pollutant Type<\/h2>\n<h3>Dust Control<\/h3>\n<ul>\n<li>Cyclone Separator: coarse particles &gt;10 microns, low pressure drop, used as a pre-treatment stage<\/li>\n<li>Bag Filter House: &gt;99% efficiency for particles &gt;1 micron, suited to metal and plastic dust<\/li>\n<li>Cartridge Dust Collector: compact, for dry dust in limited-space installations<\/li>\n<li>Wet Scrubber: for dust combined with acid gases such as HCl and SO2, used in battery and chemical recycling<\/li>\n<\/ul>\n<h3>VOC and Odor Control<\/h3>\n<ul>\n<li>Activated carbon filters for VOC and odor adsorption<\/li>\n<li>KMnO4 chemisorption media, oxidizing H2S, mercaptans, and aldehydes<\/li>\n<li>Thermal Oxidizer (TO\/RTO), operating at 800\u20131000\u00b0C for high-concentration VOC streams<\/li>\n<li>UV photolysis, breaking down odor molecules with UV-C light for large airflow applications<\/li>\n<\/ul>\n<h2>3. Vietnamese Environmental Regulations<\/h2>\n<ul>\n<li>QCVN 19:2009\/BTNMT \u2014 industrial dust and inorganic emissions<\/li>\n<li>QCVN 20:2009\/BTNMT \u2014 organic compound emissions<\/li>\n<li>QCVN 30:2012\/BTNMT \u2014 industrial waste incinerator emissions<\/li>\n<li>Periodic environmental monitoring per Decree 08\/2022\/N\u0110-CP<\/li>\n<\/ul>\n<h2>4. Air Filtech Recycling Industry Solutions<\/h2>\n<ul>\n<li>Pulse-Jet PJ Series Bag Filters with automatic cleaning for metal and plastic dust<\/li>\n<li>Activated carbon modules installed after cyclone or bag filter stages for VOC and odor control<\/li>\n<li>Chemisorption media (KMnO4 + activated carbon) for H2S, mercaptan, and odor compounds<\/li>\n<li>Compact cartridge dust collectors for small and medium sorting stations<\/li>\n<li>System design compliant with QCVN standards and support for environmental permit applications<\/li>\n<\/ul>\n<h2>5. Featured Projects<\/h2>\n<ul>\n<li>\u0110\u00f4ng Ti\u1ebfn Recycling Company (\u0110\u1ed3ng Nai) \u2014 bag filter and activated carbon system for dust and odor on a PE\/PP plastic recycling line<\/li>\n<li>Kim T\u00edn Recycling Plant (H\u1eadu Giang) \u2014 dust and metal fume filtration for an aluminum recycling furnace<\/li>\n<li>S\u00e0i G\u00f2n Xanh E-Waste Recycling Facility (Ho Chi Minh City) \u2014 heavy metal dust and VOC treatment for an e-waste recycling line<\/li>\n<\/ul>\n<p><em>Contact Air Filtech: 08 999 44 666 | info@airfiltech.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Plastic, paper, metal, and e-waste recycling facilities each generate distinct pollutant profiles. Compliance with Vietnam&#8217;s 2020 Law on Environmental Protection and relevant QCVN standards requires pollutant-specific treatment strategies. 1. Pollution Sources by Recycling Type Plastic Recycling VOCs (xylene, benzene, styrene) released during melting and pelletizing Odor from mixed plastics (polyolefin, ABS, PVC) Fine plastic dust [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":9456,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[335],"tags":[343],"class_list":["post-9421","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-waste-recycling","tag-activated-carbon"],"acf":[],"_links":{"self":[{"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/posts\/9421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/comments?post=9421"}],"version-history":[{"count":1,"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/posts\/9421\/revisions"}],"predecessor-version":[{"id":9441,"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/posts\/9421\/revisions\/9441"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/media\/9456"}],"wp:attachment":[{"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/media?parent=9421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/categories?post=9421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/airfiltech.vn\/en\/wp-json\/wp\/v2\/tags?post=9421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}