{"id":396,"date":"2019-05-20T14:34:32","date_gmt":"2019-05-20T12:34:32","guid":{"rendered":"http:\/\/hct.fi.ibimet.cnr.it\/?page_id=396"},"modified":"2023-07-25T23:14:56","modified_gmt":"2023-07-25T21:14:56","slug":"hydrodynamic-cavitation","status":"publish","type":"page","link":"https:\/\/hct.ibe.cnr.it\/index.php\/en\/hydrodynamic-cavitation\/","title":{"rendered":"Hydrodynamic cavitation"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"396\" class=\"elementor elementor-396\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a859afa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a859afa\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18fa76f\" data-id=\"18fa76f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3d740b4 elementor-widget elementor-widget-text-editor\" data-id=\"3d740b4\" 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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<h4>What&#8217;s about?<\/h4>\n<p><!-- \/wp:heading -->\n\n<!-- wp:paragraph --><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-709 alignright\" src=\"https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/bubble_collapse-300x78.jpg\" alt=\"\" width=\"362\" height=\"94\" srcset=\"https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/bubble_collapse-300x78.jpg 300w, https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/bubble_collapse.jpg 501w\" sizes=\"(max-width: 362px) 100vw, 362px\" \/>\u201cA blessing in disguise\u201d, as named in a recent\u00a0scientific article (<a href=\"https:\/\/doi.org\/10.1016\/j.matpr.2017.06.246\" target=\"_blank\" rel=\"noopener\">Shrikant and Khambete, 2017<\/a>), hydrodynamic cavitation consists of the process of generation, growth, and implosion of vapor-filled bubbles in a liquid, at temperatures below the boiling point. During implosion, extremely reactive microenvironments (hot spots) arise, locally characterized by very high temperatures, intense pressure waves and hydraulic jets, in turn associated to micro-pyrolysis events, and limited generation of oxidant radicals (absent any additive).<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-9891916 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9891916\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f1b16fa\" data-id=\"f1b16fa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-eb90627 elementor-widget elementor-widget-text-editor\" data-id=\"eb90627\" 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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<h4>How is it generated?<\/h4><div class=\"wp-block-image\">Despite the variety of triggering and control techniques, for the purposes of applications to matrices with high content of biological material and\/or solid particles, the most efficient and feasible technique foresees the coupling of one or more hydraulic pumps with Venturi-shaped reactors with suitable geometry, whose details account for both criticalities and outstanding opportunities of hydrodynamic cavitation-based techniques.<\/div>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-8b38e30 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8b38e30\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cf461bc\" data-id=\"cf461bc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-eb4cc1d elementor-widget__width-inherit elementor-widget elementor-widget-video\" data-id=\"eb4cc1d\" data-element_type=\"widget\" data-settings=\"{&quot;video_type&quot;:&quot;hosted&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"e-hosted-video elementor-wrapper elementor-open-inline\">\n\t\t\t\t\t<video class=\"elementor-video\" src=\"https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/Venturi-Filmato.mp4\" controls=\"\" preload=\"metadata\" controlsList=\"nodownload\"><\/video>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-5f22bfee elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5f22bfee\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2ec5b620\" data-id=\"2ec5b620\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7d3623c8 elementor-widget elementor-widget-text-editor\" data-id=\"7d3623c8\" 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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p><!-- wp:heading {\"level\":4} --><\/p>\n<p><!-- \/wp:paragraph --><!-- wp:heading {\"level\":4} --><\/p>\n<p><!-- \/wp:paragraph --><!-- wp:video --><\/p>\n<figure><\/figure>\n<p><!-- \/wp:video --><!-- wp:heading {\"level\":4} --><\/p>\n<h4>Which effects?<\/h4>\n<p><!-- \/wp:heading --><!-- wp:paragraph --><\/p>\n<p>Among the fundamental properties of the class of hydrodynamic cavitation-based technologies and processes, some of them assume particular importance:<\/p>\n<ul>\n<li>Degasification of liquid matrices;<\/li>\n<li>Remarkable increase of mass and heat exchanges;<\/li>\n<li>Volumetric and more efficient heating;<\/li>\n<li>Disintegration \u2013 or increase in porosity \u2013 of solid substances;<\/li>\n<li>Remarkable size reduction of oil drops and lipid granules;<\/li>\n<li>Reduction of surface tension, with consequent increase of the miscibility of different liquids;<\/li>\n<li>Molecular-scale pyrolysis, depolymerization and degradation of hydrophobic substances;<\/li>\n<li>Inactivation of the bacterial load, as well as some viruses, at moderate temperatures;<\/li>\n<li>Increased recovery of metal ores via floatation;<\/li>\n<li>When coupled with specific additives, generation of powerful oxidation processes.<\/li>\n<\/ul>\n<p><!-- \/wp:paragraph --><!-- wp:heading {\"level\":4} --><\/p>\n<p><!-- \/wp:paragraph --><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-0773c5c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0773c5c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-52463f5\" data-id=\"52463f5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9d1519a elementor-widget elementor-widget-image\" data-id=\"9d1519a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"217\" src=\"https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/cavitation_bubble_EN-300x217.jpg\" class=\"attachment-medium size-medium wp-image-713\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/cavitation_bubble_EN-300x217.jpg 300w, https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/cavitation_bubble_EN-768x555.jpg 768w, https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/cavitation_bubble_EN-1024x740.jpg 1024w, https:\/\/hct.ibe.cnr.it\/wp-content\/uploads\/2019\/05\/cavitation_bubble_EN.jpg 1516w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-c94e881 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c94e881\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4833db7\" data-id=\"4833db7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ca32b38 elementor-widget elementor-widget-text-editor\" data-id=\"ca32b38\" 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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<h4>Application fields<\/h4>\n<p><!-- \/wp:heading --><!-- wp:paragraph --><\/p>\n<p>HC technologies are tested and successfully experienced in a wide area of application fields such as, for example, waste water purification and drinking water disinfection, biomass pre-treatment, food pasteurization and sterilization, extraction of bioactive compounds from plant materials, creation of ultra-stable nanoemulsions, and many others.<\/p>\n<p>These technologies have proven to outperform competing methods, significantly increasing process yields, operating either as single unit systems or integrated with other technologies and processes, as well as complying with the principles of green chemistry, as well as green and sustainable extraction methods of natural products.<\/p>\n<p><!-- \/wp:paragraph --><!-- wp:paragraph --><\/p>\n<p><!-- \/wp:paragraph --><!-- wp:heading {\"level\":4} --><\/p>\n<h4>Main advantages<\/h4>\n<p><!-- \/wp:heading --><!-- wp:paragraph --><\/p>\n<ul>\n<li>Lower construction and management costs<\/li>\n<li>Superior process yields and energy savings<\/li>\n<li>Shorter processing times<\/li>\n<li>Robustness, scalability, reliability and flexibility<\/li>\n<li>Superior extraction of bioactive compounds<\/li>\n<li>Reduced use, up to 100%, of additives (solvents, emulsifiers, preservatives, etc.)<\/li>\n<li>Compliance with the principles of green chemistry and green extraction of natural products.<\/li>\n<\/ul>\n<h4>More info<\/h4>\n<p>Meneguzzo, F., Albanese, L., &amp; Zabini, F. (2020). Hydrodynamic cavitation in beer and other beverages processing. In\u00a0Reference Module in Food Science. Elsevier.\u00a0<a href=\"https:\/\/doi.org\/10.1016\/B978-0-08-100596-5.23022-9\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1016\/B978-0-08-100596-5.23022-9<\/a><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>What&#8217;s about? \u201cA blessing in disguise\u201d, as named in a recent\u00a0scientific article (Shrikant and Khambete, 2017), hydrodynamic cavitation consists of the process of generation, growth, and implosion of vapor-filled bubbles in a liquid, at temperatures below the boiling point. During implosion, extremely reactive microenvironments (hot spots) arise, locally characterized by very high temperatures, intense pressure [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/pages\/396"}],"collection":[{"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/comments?post=396"}],"version-history":[{"count":26,"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/pages\/396\/revisions"}],"predecessor-version":[{"id":1369,"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/pages\/396\/revisions\/1369"}],"wp:attachment":[{"href":"https:\/\/hct.ibe.cnr.it\/index.php\/wp-json\/wp\/v2\/media?parent=396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}