{"id":933,"date":"2022-05-17T16:37:15","date_gmt":"2022-05-17T09:37:15","guid":{"rendered":"https:\/\/mekongxanh.vn\/?page_id=933"},"modified":"2022-07-19T16:08:12","modified_gmt":"2022-07-19T09:08:12","slug":"he-thong-xu-ly-khi-thai-mui-hoi","status":"publish","type":"page","link":"https:\/\/mekongxanh.vn\/en\/dich-vu\/he-thong-xu-ly-khi-thai-mui-hoi\/","title":{"rendered":"Exhaust gas and odor treatment system"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"933\" class=\"elementor elementor-933\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6f0091ad elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"6f0091ad\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div 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class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-30876199 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"30876199\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-5bd5a946 elementor-hidden-tablet elementor-hidden-mobile\" data-id=\"5bd5a946\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-66876abf elementor-nav-menu__text-align-aside elementor-widget elementor-widget-nav-menu\" data-id=\"66876abf\" data-element_type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;dropdown&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;i class=\\&quot;fas fa-chevron-right\\&quot;&gt;&lt;\\\/i&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:250,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;],&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-66876abf\" class=\"elementor-nav-menu\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-969\"><a href=\"https:\/\/mekongxanh.vn\/en\/dich-vu\/cong-trinh-xu-ly-nuoc-thai\/\" class=\"elementor-item menu-link\" tabindex=\"-1\">Wastewater treatment<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-970\"><a href=\"https:\/\/mekongxanh.vn\/en\/dich-vu\/cong-trinh-xu-ly-nuoc-cap-nuoc-tinh-khiet\/\" class=\"elementor-item menu-link\" tabindex=\"-1\">Feed water treatment, water filtration system<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-975\"><a href=\"https:\/\/mekongxanh.vn\/en\/dich-vu\/he-thong-thu-gom-xu-ly-bui\/\" class=\"elementor-item menu-link\" tabindex=\"-1\">dust filtration system<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-976\"><a href=\"https:\/\/mekongxanh.vn\/en\/dich-vu\/he-thong-xu-ly-khi-thai-mui-hoi\/\" class=\"elementor-item menu-link\" tabindex=\"-1\">Exhaust gas and odor treatment system<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-974\"><a href=\"https:\/\/mekongxanh.vn\/en\/dich-vu\/he-thong-thong-gio-cach-am-cach-nhiet\/\" class=\"elementor-item menu-link\" tabindex=\"-1\">Ventilation system, sound insulation, heat insulation<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-977\"><a href=\"https:\/\/mekongxanh.vn\/en\/dich-vu\/xu-ly-chat-thai-ran\/\" class=\"elementor-item menu-link\" tabindex=\"-1\">solid waste management<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-48f71598\" data-id=\"48f71598\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e94b465 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e94b465\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-760d95cc\" data-id=\"760d95cc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9080d8e elementor-nav-menu--stretch elementor-widget-tablet__width-auto elementor-hidden-desktop elementor-nav-menu__text-align-aside elementor-nav-menu--toggle elementor-nav-menu--burger elementor-widget elementor-widget-nav-menu\" data-id=\"9080d8e\" data-element_type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;dropdown&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;i class=\\&quot;fas fa-chevron-right\\&quot;&gt;&lt;\\\/i&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:20,&quot;full_width&quot;:&quot;stretch&quot;,&quot;sticky_offset_tablet&quot;:0,&quot;sticky_effects_offset_tablet&quot;:0,&quot;toggle&quot;:&quot;burger&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;],&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-toggle\" role=\"button\" tabindex=\"0\" aria-label=\"Toggle menu\" aria-expanded=\"false\">\n\t\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--open eicon-menu-bar\"><\/i><i aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--close eicon-close\"><\/i>\t\t<\/div>\n\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-9080d8e\" class=\"elementor-nav-menu\"><li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-959\"><a href=\"#gthieu\" class=\"elementor-item elementor-item-anchor menu-link\" tabindex=\"-1\">ABOUT US<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-960\"><a href=\"#quy_trinh\" class=\"elementor-item elementor-item-anchor menu-link\" tabindex=\"-1\">Implementation process<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-961\"><a href=\"#liet_ke\" class=\"elementor-item elementor-item-anchor menu-link\" tabindex=\"-1\">List processing technology<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-49a1f117 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"49a1f117\" data-element_type=\"section\" id=\"liet_ke\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-3fdc920\" data-id=\"3fdc920\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7b1d3940 elementor-widget__width-initial css_vien_t elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"7b1d3940\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">AGENTS and Sources of Air Pollution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27616dbe elementor-widget elementor-widget-text-editor\" data-id=\"27616dbe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5 style=\"text-align: justify;\"><strong style=\"color: #043cc9; font-size: 1.2rem; font-style: inherit; background-color: var(--ast-global-color-5);\">Main causes of air pollution:<\/strong><\/h5><p>Pollutants in the environment can be said to exist in many different forms, but can be classified into two main categories:<br \/>\u2013 Gases: SOx, NOx, COx, H2S\u2026 and toxic vapors.<br \/>\u2013 Solid: ash, dust, smoke and aerosols<\/p><p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/mekongxanh.vn\/wp-content\/uploads\/2022\/07\/Untitled-1-1.jpg\" alt=\"\" width=\"500\" height=\"500\" \/><strong style=\"font-size: 1.2rem; font-style: inherit; text-align: justify; color: #043cc9; background-color: var(--ast-global-color-5);\">Sources of man-made pollution:<\/strong><\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0Most of human activities create waste and pollutants into the environment, especially in daily life, industry and traffic.\u00a0<\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<strong>\u00a0Sources of waste from daily life:<\/strong>\u00a0Every day people have used a large amount of fuels such as coal, firewood, oil, gas for cooking and for other purposes. In the process of burning, they will consume oxygen of the atmosphere, and at the same time create a lot of smoke, CO, CO2, ... These wastes are often concentrated in a small space (kitchen), the exhaust gas is slow. should create a large concentration in human living space.<\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<b>\u00a0Sources of waste due to transportation:<\/b>\u00a0With the advancement of science and technology, people have created many mechanical equipment, shown by the flow of vehicles on the street, they run on gasoline, so they produce a lot of smoke and CO. , CO2, NO and HC, etc. This influence depends mainly on the quality of traffic on the road. Leaded gasoline is also an agent that greatly affects human health.<\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<b>\u00a0Waste sources from industrial production:\u00a0<\/b>A trend that goes against the quality of the environment is the process of urbanization and industrialization, which is the process of reducing green areas and rivers, replacing them with high-rise buildings, industrial factories. With the flue gas chimneys, various pollutants are suspected, making the air quality in urban areas greatly affected.<br \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0The wastes of industrial zones are very diverse, their effects on the environment are also different, so for research, it is necessary to consider specifically for each type of factory.<\/p><figure id=\"attachment_3027\" aria-describedby=\"caption-attachment-3027\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/mekongxanh.vn\/en\/girl-wearing-n95-air-pollution-mask-for-protect-dust-pm2-5-caus-2\/\" rel=\"attachment wp-att-3027\"><img decoding=\"async\" src=\"https:\/\/mekongxanh.vn\/wp-content\/uploads\/2022\/07\/girl-wearing-n95-air-pollution-mask-for-protect-vector-25090852-1.jpg\" alt=\"\" width=\"500\" height=\"500\" \/><\/a><figcaption id=\"caption-attachment-3027\" class=\"wp-caption-text\">Sources of air pollution from human activities<\/figcaption><\/figure>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-45b48a72 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"45b48a72\" data-element_type=\"section\" id=\"gthieu\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-4ff46303\" data-id=\"4ff46303\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5c298f4e elementor-widget__width-initial css_vien_t elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"5c298f4e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Solutions to prevent and treat air pollution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e473116 elementor-widget elementor-widget-text-editor\" data-id=\"1e473116\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5 style=\"text-align: justify;\"><span style=\"color: #043cc9;\"><b>Planning solution<\/b><\/span><\/h5><p style=\"font-size: 16px; font-style: normal; font-weight: 400; text-align: justify;\"><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">The fact has shown that many industrial plants are located right between residential areas and urban areas, causing a lot of dust, smoke, noise and pollutants; many chimneys are located at the windward direction towards residential areas; in humid human settlements; ventilation, lighting is not guaranteed, etc. All of these disadvantages are due to the lack of reasonable planning measures during construction. Faced with that situation, the state now requires establishments to have an environmental impact assessment for old facilities to take remedial measures; For works that have just begun to be implemented, it is necessary to report possible impacts on the environment, to ensure that there are no major impacts during the construction process and also during the operation and use. use later <br \/><\/span><\/p><h5 style=\"font-style: normal; text-align: justify;\"><span style=\"color: #043cc9;\"><span style=\"font-weight: bold;\">Hygienic isolation solution<\/span><\/span><\/h5><p style=\"text-align: justify;\"><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\"> \u00a0Usually, the closer to the source of pollution, the greater its influence, so it is necessary to define a protection belt around the industrial park, which is the distance from the source of the waste to the residential area. That distance depends on the nature and characteristics of each type of factory, type of production caused, this distance ensures that the concentration of pollutants in residential areas caused by this source does not exceed the standards for permission. In addition, for industrial parks, it is necessary to have walls or use green strips to prevent the spread of dust and noise in the space, in order to minimize environmental pollution to people&#039;s living places.<\/span><\/p><p style=\"text-align: center;\"><span style=\"background-color: var(--ast-global-color-5);\"><em><strong>Table 2.1<\/strong>. <\/em><em>Regulation of sanitary isolation strips according to hazardous levels of industrial production:<\/em><br \/><\/span><\/p><table style=\"height: 53px;\" width=\"1793\"><tbody><tr><td width=\"130\">Toxic level<\/td><td style=\"text-align: center;\" width=\"95\">I<\/td><td style=\"text-align: center;\" width=\"94\">II<\/td><td style=\"text-align: center;\" width=\"95\">III<\/td><td style=\"text-align: center;\" width=\"95\">IV<\/td><td style=\"text-align: center;\" width=\"95\">DRAW<\/td><\/tr><tr><td width=\"130\">Insulation strip (m)<\/td><td style=\"text-align: center;\" width=\"95\">1000<\/td><td style=\"text-align: center;\" width=\"94\">500<\/td><td style=\"text-align: center;\" width=\"95\">300<\/td><td style=\"text-align: center;\" width=\"95\">100<\/td><td style=\"text-align: center;\" width=\"95\">50<\/td><\/tr><\/tbody><\/table><h5 style=\"font-style: normal; text-align: justify;\"><span style=\"color: #043cc9;\"><span style=\"font-weight: bold;\">Ventilation solutions<\/span><\/span><\/h5><p style=\"text-align: justify;\"><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span>In a closed room, we can change the polluted inside air (due to heat, dust, toxic gas\u2026) with clean air brought in from outside for a certain period of time (periodic ventilation). ) or for an unlimited period (regular ventilation\u2026). called room ventilation.<br \/><strong>a. General ventilation:<br \/><\/strong><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span>The purpose of general ventilation is to bring in air from outside with the necessary flow to dilute the intensity of pollution (by heat, dust, vapor or toxic gas) in the entire factory space, then discharge it out. It is carried out in rooms where the source of the hazard is evenly distributed (schools, theaters, hospitals) or in rooms where it is not possible to predict where the toxic sources will appear (food shops, refreshment bars, etc.) club\u2026.)<\/p><p style=\"text-align: justify;\"><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0<\/span>The disadvantage of the general ventilation system is that the place where there is no hazard is also affected by the source of the toxic spillage elsewhere.<br \/><strong>b. Local ventilation:<\/strong><br \/><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span>It is carried out to discharge hazardous substances directly from the source to the outside (local suction) or to blow clean air into necessary and known locations (local blow). The organization and reasonable handling of pollutants must satisfy the following requirements:<br \/><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span>- Do not obstruct the manipulation of technology.<br \/><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span>Do not allow air containing pollutants to pass through the breathing zone.<br \/><span style=\"background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span>- The gas collection velocity is large enough.\u00a0<\/p><p style=\"text-align: justify;\"><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/mekongxanh.vn\/wp-content\/uploads\/2022\/07\/Thong-gio-cuc-bo.jpg\" alt=\"\" width=\"781\" height=\"482\" \/><\/p><h5 style=\"font-style: normal; text-align: justify;\"><span style=\"color: #043cc9;\"><span style=\"font-weight: bold;\">Waste gas treatment at source<\/span><\/span><\/h5><p><span style=\"text-align: justify; background-color: var(--ast-global-color-5);\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"text-align: justify; background-color: var(--ast-global-color-5);\">\u00a0\u00a0<\/span>Before being discharged into the environment through the chimney, they are allowed to pass through treatment equipment to reduce the concentration of pollutants to avoid waste with concentrations exceeding the allowable standards.\u00a0<\/p><p><span style=\"color: #084acf;\"><b>a. Exhaust gas treatment by absorption method:<\/b><\/span><\/p><p><b> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/mekongxanh.vn\/wp-content\/uploads\/2022\/07\/A\u0309nh1.png\" alt=\"\" width=\"475\" height=\"388\" \/><\/b><\/p><p><strong>Includes 3 steps:<\/strong><\/p><p><strong>Step 1:<\/strong>\u00a0Diffusion of gaseous pollutant molecules in the flue gas mass to the surface of the absorbent solution<\/p><p><strong>Step 2:<\/strong>\u00a0The penetration and dissolution of a gas into the surface of the absorbent solution.<\/p><p><strong>Step 3:<\/strong>\u00a0Diffusion of the dissolved gas on the surface of the separator into the depths of the absorbing liquid<\/p><p>During absorption. Pollutants in the exhaust gas are trapped on the surface of the solid and cleaned material. The trapped harmful gases are called adsorbents.<\/p><p>The activities of dehumidifying the air, eliminating harmful gases and odors in the exhaust gas. The recovery of valuable vapors and gases is called the absorption process.<\/p><p id=\"ftoc-heading-6\" class=\"ftwp-heading\"><span style=\"color: #084acf;\"><strong>Substances commonly used in exhaust gas absorption methods<\/strong><\/span><\/p><ul><li>H country<sub>2<\/sub>O)<\/li><li>Basic solutions: KOH, NaOH, Na<sub>2<\/sub>CO<sub>3<\/sub>, KY<sub>2<\/sub>CO<sub>3<\/sub>, Ca(OH)<sub>2<\/sub>, CaCO<sub>3<\/sub>\u2026<\/li><li><p>Monoethanolamine (OHCH<sub>2<\/sub>ONLY<sub>2<\/sub>SMALL<sub>2<\/sub>), diethanolamine (cheap<sub>2<\/sub>\u00a0- NH), tritanolamine (R<sub>3<\/sub>\u2013 NH)<\/p><\/li><\/ul><p id=\"ftoc-heading-7\" class=\"ftwp-heading\"><span style=\"color: #084acf;\"><strong>Advantages and disadvantages of the exhaust gas absorption process<\/strong><\/span><\/p><table width=\"622\"><tbody><tr><td style=\"text-align: center;\" width=\"292\"><strong>Advantages<\/strong><\/td><td style=\"text-align: center;\" width=\"330\"><strong>Defect<\/strong><\/td><\/tr><tr><td width=\"292\"><ul><li>High efficiency, especially for gas with good solubility.<\/li><li>Can handle low temperature hazardous gas.<\/li><li>Operation is very simple and easy to maintain and repair.<\/li><li>Absorbent solution is easy to find, reconstituted.<\/li><li>Can combine gas treatment with dust separation and refrigeration<\/li><\/ul><\/td><td width=\"330\"><ul><li>If reconstitution is used, it is costly to reconstitute a large volume of solution.<\/li><li>If not, the wastewater must be treated.<\/li><li>Quite energy consuming.<\/li><li>Takes up more space<\/li><\/ul><\/td><\/tr><\/tbody><\/table><p id=\"ftoc-heading-9\" class=\"ftwp-heading\"><span style=\"color: #084acf;\"><strong>Objects used to treat exhaust gas by absorption method<\/strong><\/span><\/p><ul><li>Mineral processing plant<\/li><li>Seafood processing factory<\/li><li>Quarry plant<\/li><li>Cement factory<\/li><li>Brick processing factory<\/li><\/ul><p><b>b. 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KH\u00d4NG KH\u00cd T\u00e1c nh\u00e2n ch\u00ednh g\u00e2y \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed: C\u00f3 th\u1ec3 n\u00f3i c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m trong m\u00f4i tr\u01b0\u1eddng t\u1ed3n t\u1ea1i \u1edf r\u1ea5t nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1ebfp th\u00e0nh 2 lo\u1ea1i ch\u00ednh sau:&#8211; Kh\u00ed : SOx, NOx, COx, H2S,&#8230; v\u00e0 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mekongxanh.vn\/en\/dich-vu\/he-thong-xu-ly-khi-thai-mui-hoi\/\"> <span class=\"screen-reader-text\">Exhaust gas and odor treatment system<\/span> Read More 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