{"id":149,"date":"2021-12-15T05:46:30","date_gmt":"2021-12-15T05:46:30","guid":{"rendered":"http:\/\/kelvinindia.in\/blog\/?p=149"},"modified":"2024-09-18T09:00:28","modified_gmt":"2024-09-18T09:00:28","slug":"dissolved-air-flotation-system-for-wastewater-treatment","status":"publish","type":"post","link":"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/","title":{"rendered":"Dissolved Air Flotation System for Wastewater Treatment"},"content":{"rendered":"\n<p>DAF or <strong><a href=\"https:\/\/www.kelvinindia.in\/dissolved-air-flotation\">Dissolved Air Flotation<\/a><\/strong> is water or wastewater treatment system which uses air for water treatment. In this air under pressure is dissolved in the wastewater which when released at atmospheric pressure in flotation tank basin removes the oil and solid wastes from the water. Dissolved air flotation is used in industries like oil refineries, petrochemical, and chemical plants, general water treatment, and similar industrial facilities for treating industrial wastewater effluents.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"800\" src=\"https:\/\/kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF.jpg\" alt=\"\" class=\"wp-image-150\" srcset=\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF.jpg 1000w, https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF-300x240.jpg 300w, https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF-768x614.jpg 768w, https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF-338x270.jpg 338w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p>As air is used for the treatment of wastewater in DAF, Nitrogen gas is mostly used in industries so as to avoid explosion during DAF water treatment.<\/p>\n\n\n\n<p><strong>Principal of DAF:<\/strong><\/p>\n\n\n\n<p>DAF works on the principle of flotation i.e. the performance depends on the effectiveness of coagulation and flocculation.<\/p>\n\n\n\n<p><strong>Process of DAF:<\/strong><\/p>\n\n\n\n<p>DAF is particularly suited to water supplies with characteristics such as those containing low-density particles and those yielding low-density particles following chemical coagulation. Feedwater is added to the DAF float tank which transforms the small particles into big particles by coagulating the smaller particles to form a cluster. This coagulation is done by adding coagulants like ferric chloride and aluminum sulfate. Then the effluent water is pumped to the small vessel in which with the help of an air compressor, air pressure is maintained which helps unsaturation of pressurized water with air. <strong><a href=\"https:\/\/www.kelvinindia.in\/products\">Wastewater <\/a><\/strong>is recycled through recycling pumps passing through air compressor to air drum &amp; then into float tank again leaving the waste on the surface.<\/p>\n\n\n\n<p><strong>Reasons to use DAF?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Water recovery and reuse.<\/li>\n\n\n\n<li>Pre-treatment to meet sewer discharge limits.<\/li>\n\n\n\n<li>Pre-treatment to reduce loading on downstream biological treatment systems.<\/li>\n\n\n\n<li>Polishing of biological treatment effluent.<\/li>\n\n\n\n<li>Thickening of biosolids. <\/li>\n<\/ul>\n\n\n\n<p><strong>Advantages of using DAF:<\/strong><\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.kelvinindia.in\/dissolved-air-flotation\">DAF System<\/a><\/strong> requires small space for installation, smaller floc tanks because of shorter flocculation pre-treatment time, smaller DAF tank areas compared to sedimentation tanks, and smaller filter areas if designed at higher rates. It is more efficient than settling in removing low-density particles, even at the much higher hydraulic loadings<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-luminous-vivid-orange-color has-text-color\">Leave Us a Message*<\/h2>\n\n\n\n<style id=\"wpforms-css-vars-1784\">\n\t\t\t\t#wpforms-1784 {\n\t\t\t\t--wpforms-container-padding: 0px;\n--wpforms-container-border-width: 1px;\n--wpforms-container-border-radius: 3px;\n--wpforms-background-color: rgba(0, 0, 0, 0);\n--wpforms-field-size-input-height: 43px;\n--wpforms-field-size-input-spacing: 15px;\n--wpforms-field-size-font-size: 16px;\n--wpforms-field-size-line-height: 19px;\n--wpforms-field-size-padding-h: 14px;\n--wpforms-field-size-checkbox-size: 16px;\n--wpforms-field-size-sublabel-spacing: 5px;\n--wpforms-field-size-icon-size: 1;\n--wpforms-label-size-font-size: 16px;\n--wpforms-label-size-line-height: 19px;\n--wpforms-label-size-sublabel-font-size: 14px;\n--wpforms-label-size-sublabel-line-height: 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type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-1784\" class=\"wpforms-submit\" data-alt-text=\"Sending...\" data-submit-text=\"Submit\" aria-live=\"assertive\" value=\"wpforms-submit\">Submit<\/button><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/plugins\/wpforms-lite\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"Loading\"><\/div><\/form><\/div>  <!-- .wpforms-container -->\n\n\n\n<p>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DAF or Dissolved Air Flotation is water or wastewater treatment system which uses air for water treatment. In this air under pressure is dissolved in the wastewater which when released at atmospheric pressure in flotation tank basin removes the oil and solid wastes from the water. Dissolved air flotation is used in industries like oil refineries, petrochemical, and chemical plants, general water treatment, and similar industrial facilities for treating industrial wastewater effluents. As air is used for the treatment of&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[113],"tags":[107,108,102,112,105,103,104,101,111,106,110,109],"class_list":["post-149","post","type-post","status-publish","format-standard","hentry","category-daf-system","tag-air-flotation","tag-daf-dissolved-air-flotation","tag-daf-system","tag-daf-system-wastewater-treatment","tag-daf-tank","tag-daf-unit","tag-daf-wastewater","tag-dissolved-air-flotation","tag-dissolved-air-flotation-manufacturers","tag-dissolved-air-flotation-system","tag-dissolved-air-flotation-unit","tag-dissolved-air-flotation-water-treatment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dissolved Air Flotation System for Wastewater Treatment<\/title>\n<meta name=\"description\" content=\"Dissolved Air Flotation(DAF) is a water &amp; wastewater treatment system which removes contaminants like oil and suspended solids.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dissolved Air Flotation System for Wastewater Treatment\" \/>\n<meta property=\"og:description\" content=\"Dissolved Air Flotation(DAF) is a water &amp; wastewater treatment system which removes contaminants like oil and suspended solids.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\" \/>\n<meta property=\"og:site_name\" content=\"Kelvin Water Technologies Pvt. Ltd.\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-15T05:46:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-18T09:00:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF.jpg\" \/>\n<meta name=\"author\" content=\"Alok Aryan\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alok Aryan\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\"},\"author\":{\"name\":\"Alok Aryan\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/#\/schema\/person\/b30bda47de7894b0b7f2295389eb6bd2\"},\"headline\":\"Dissolved Air Flotation System for Wastewater Treatment\",\"datePublished\":\"2021-12-15T05:46:30+00:00\",\"dateModified\":\"2024-09-18T09:00:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\"},\"wordCount\":339,\"image\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF.jpg\",\"keywords\":[\"air flotation\",\"daf dissolved air flotation\",\"daf system\",\"daf system wastewater treatment\",\"daf tank\",\"daf unit\",\"daf wastewater\",\"dissolved air flotation\",\"dissolved air flotation manufacturers\",\"dissolved air flotation system\",\"dissolved air flotation unit\",\"dissolved air flotation water treatment\"],\"articleSection\":[\"DAF System\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\",\"url\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\",\"name\":\"Dissolved Air Flotation System for Wastewater Treatment\",\"isPartOf\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF.jpg\",\"datePublished\":\"2021-12-15T05:46:30+00:00\",\"dateModified\":\"2024-09-18T09:00:28+00:00\",\"author\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/#\/schema\/person\/b30bda47de7894b0b7f2295389eb6bd2\"},\"description\":\"Dissolved Air Flotation(DAF) is a water & wastewater treatment system which removes contaminants like oil and suspended solids.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/#primaryimage\",\"url\":\"https:\/\/kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF.jpg\",\"contentUrl\":\"https:\/\/kelvinindia.in\/blog\/wp-content\/uploads\/2021\/12\/DAF.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/dissolved-air-flotation-system-for-wastewater-treatment\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.kelvinindia.in\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Dissolved Air Flotation System for Wastewater Treatment\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/#website\",\"url\":\"https:\/\/www.kelvinindia.in\/blog\/\",\"name\":\"Kelvin Water Technologies Pvt. 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