{"id":1958,"date":"2025-01-02T20:48:00","date_gmt":"2025-01-02T20:48:00","guid":{"rendered":"https:\/\/www.gvs.com.br\/life-sciences\/?p=1958"},"modified":"2025-09-30T20:57:39","modified_gmt":"2025-09-30T20:57:39","slug":"microfiltracao-nanofiltracao-e-ultrafiltracao","status":"publish","type":"post","link":"https:\/\/www.gvs.com.br\/life-sciences\/2025\/01\/02\/microfiltracao-nanofiltracao-e-ultrafiltracao\/","title":{"rendered":"Microfiltra\u00e7\u00e3o, nanofiltra\u00e7\u00e3o e ultrafiltra\u00e7\u00e3o: descubra as diferen\u00e7as entre os processos"},"content":{"rendered":"\n<div class=\"wp-block-uagb-container uagb-block-8556d22c alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-62d72bed\"><h1 class=\"uagb-heading-text\">Microfiltra\u00e7\u00e3o, nanofiltra\u00e7\u00e3o e ultrafiltra\u00e7\u00e3o: <br>Descubra as diferen\u00e7as entre os processos<\/h1><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-cca09862\"><h2 class=\"uagb-heading-text\">Veja, tamb\u00e9m, como funciona o m\u00e9todo de osmose reversa<\/h2><\/div>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>Como j\u00e1 falamos em outros textos do nosso blog, a filtra\u00e7\u00e3o \u00e9 um processo que permite a elimina\u00e7\u00e3o de impurezas que podem ficar acumuladas em componentes l\u00edquidos ou gasosos. Mas, este \u00e9 um assunto complexo que merece explica\u00e7\u00e3o. Por isso, hoje vamos falar sobre o tema e mostrar as diferen\u00e7as entre microfiltra\u00e7\u00e3o, nanofiltra\u00e7\u00e3o, ultrafiltra\u00e7\u00e3o e osmose reversa.<\/p>\n\n\n\n<p>Quer saber mais?<\/p>\n\n\n\n<p>Ent\u00e3o, continue lendo o nosso conte\u00fado e tire todas as suas d\u00favidas a seguir!<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-fa4abd8e42b61f04aac904e1b5508881\"><strong>Por que o processo de filtra\u00e7\u00e3o \u00e9 t\u00e3o importante?<\/strong><\/h2>\n\n\n\n<p>Conforme citamos no in\u00edcio do texto, ele garante que algumas sujeiras n\u00e3o sejam acumuladas em determinados meios.<\/p>\n\n\n\n<p>Do mesmo modo, atrav\u00e9s da filtra\u00e7\u00e3o \u00e9 poss\u00edvel eliminar res\u00edduos indesej\u00e1veis aos processos produtivos de diferentes tipos de produtos, como farmac\u00eauticos e aliment\u00edcios.<\/p>\n\n\n\n<p>O processo que utiliza membranas como um obst\u00e1culo para as subst\u00e2ncias \u00e9 muito eficiente.<\/p>\n\n\n\n<p>Ali\u00e1s, uma membrana \u00e9 definida como um filme fino s\u00f3lido, que \u00e9 capaz de separar duas solu\u00e7\u00f5es e agir como uma barreira seletiva, ajudando a eliminar as impurezas.<\/p>\n\n\n\n<p>Geralmente, esta separa\u00e7\u00e3o \u00e9 classificada pelo tamanho dos poros, pelo peso molecular ou pela press\u00e3o aplicada.<\/p>\n\n\n\n<p>Ap\u00f3s o produto ultrapassar a membrana, ele passa a ser chamado de permeado. J\u00e1 o que \u00e9 retido, fica sendo chamado de concentrado ou retentado.<\/p>\n\n\n\n<p>Vale lembrar que o processo, que utiliza as caracter\u00edsticas desej\u00e1veis das membranas biol\u00f3gicas, especialmente as de seletividade e permeabilidade, n\u00e3o promove nenhuma transforma\u00e7\u00e3o qu\u00edmica no tratamento, j\u00e1 que a \u00fanica situa\u00e7\u00e3o que ocorre \u00e9 a reten\u00e7\u00e3o do material durante a filtra\u00e7\u00e3o.&nbsp;<\/p>\n\n\n\n<p>Mas, \u00e9 importante voc\u00ea saber que n\u00e3o se trata de um m\u00e9todo com um \u00fanico sistema. Pois, neste caso, existem quatro grupos principais. S\u00e3o eles: microfiltra\u00e7\u00e3o (MF), ultrafiltra\u00e7\u00e3o (UF), nanofiltra\u00e7\u00e3o (NF) e osmose reversa (OI).<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-61e4eac2884c89273a1b6c9f8e4731cf\"><strong>Entenda as diferen\u00e7as<\/strong>&nbsp;<strong>entre microfiltra\u00e7\u00e3o e outros processos<\/strong><\/h3>\n\n\n\n<p>De fato, entre os principais questionamentos sobre os grupos de separa\u00e7\u00e3o por membranas, est\u00e3o d\u00favidas sobre as diferen\u00e7as entre eles.&nbsp;<\/p>\n\n\n\n<p>Mas, hoje queremos esclarecer como cada processo funciona. Veja:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-9fa75118061bd1fe9945ae3a23767fcc\"><strong>Microfiltra\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<p>Primeiramente, a microfiltra\u00e7\u00e3o \u00e9 o modelo de separa\u00e7\u00e3o por membranas que mais se aproxima da filtra\u00e7\u00e3o cl\u00e1ssica. Pois, utiliza membranas porosas com poros entre 0,1 e 10 \u03bcm.<\/p>\n\n\n\n<p>Portanto, a a\u00e7\u00e3o \u00e9 indicada para reten\u00e7\u00e3o de bact\u00e9rias, protozo\u00e1rios, alguns v\u00edrus e materiais em suspens\u00e3o e emuls\u00e3o.<\/p>\n\n\n\n<p>Al\u00e9m disso, como as membranas de microfiltra\u00e7\u00e3o s\u00e3o relativamente abertas, as press\u00f5es que s\u00e3o empregadas como for\u00e7a motriz, s\u00e3o consideradas pequenas e n\u00e3o ultrapassam 3 bar.<\/p>\n\n\n\n<p>Neste caso, apenas o material em suspens\u00e3o \u00e9 retido.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"323\" src=\"https:\/\/www.gvs.com.br\/life-sciences\/wp-content\/uploads\/2025\/09\/meio-ls-diferencas-1024x323.jpg\" alt=\"\" class=\"wp-image-1960\" srcset=\"https:\/\/www.gvs.com.br\/life-sciences\/wp-content\/uploads\/2025\/09\/meio-ls-diferencas-1024x323.jpg 1024w, https:\/\/www.gvs.com.br\/life-sciences\/wp-content\/uploads\/2025\/09\/meio-ls-diferencas-300x95.jpg 300w, https:\/\/www.gvs.com.br\/life-sciences\/wp-content\/uploads\/2025\/09\/meio-ls-diferencas-768x242.jpg 768w, https:\/\/www.gvs.com.br\/life-sciences\/wp-content\/uploads\/2025\/09\/meio-ls-diferencas.jpg 1110w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-8d47cb01d45943cb73ba4799e8940bcb\"><strong>Ultrafiltra\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<p>J\u00e1 a ultrafiltra\u00e7\u00e3o, \u00e9 conhecida, tamb\u00e9m, como filtra\u00e7\u00e3o molecular e \u00e9 utilizada para segregar subst\u00e2ncias de acordo com seu peso e tamanho molecular.<\/p>\n\n\n\n<p>Assim, o processo \u00e9 baseado em um diferencial de press\u00e3o, que ocorre por meio da membrana semiperme\u00e1vel. &nbsp;<\/p>\n\n\n\n<p>Al\u00e9m dos componentes filtrados pela microfiltra\u00e7\u00e3o, neste caso, \u00e9 poss\u00edvel barrar, tamb\u00e9m, coloides e todos os v\u00edrus.<\/p>\n\n\n\n<p>Desse modo, a ultrafiltra\u00e7\u00e3o \u00e9 utilizada para purificar e fracionar solu\u00e7\u00f5es que contenham macromol\u00e9culas.<\/p>\n\n\n\n<p>Ent\u00e3o, as membranas de UF apresentam poros na faixa entre 1 e 100 nm e s\u00e3o mais fechadas que as de MF.<\/p>\n\n\n\n<p>Portanto, como os poros s\u00e3o menores, \u00e9 preciso contar com uma for\u00e7a motriz superior para que o processo seja utilizado industrialmente. Dessa forma, a press\u00e3o da membrana varia entre 2 a 10 bar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-2db211752017116513f55a9a694d85e1\"><strong>Nanofiltra\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<p>Por sua vez, a nanofiltra\u00e7\u00e3o \u00e9 o processo de separa\u00e7\u00e3o por membranas que consegue dividir solu\u00e7\u00f5es heterog\u00eaneas e solutos que est\u00e3o dissolvidos na \u00e1gua.<\/p>\n\n\n\n<p>A t\u00e9cnica, que atua como uma barreira seletiva e permite apenas a passagem de alguns componentes, ret\u00e9m sais bivalentes com 0,001 \u00b5m molecular. Al\u00e9m disso, precisa de uma press\u00e3o entre 10 a 25 bar.<\/p>\n\n\n\n<p>De fato, atualmente, este m\u00e9todo vem sendo cada vez mais procurado por empresas do ramo industrial. Ali\u00e1s, ele est\u00e1 sendo muito utilizado em \u00e1reas como:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Farmac\u00eautica;<\/li>\n\n\n\n<li>Aliment\u00edcia;<\/li>\n\n\n\n<li>Minera\u00e7\u00e3o;<\/li>\n\n\n\n<li>Biorrefinaria;<\/li>\n\n\n\n<li>Dessaliniza\u00e7\u00e3o, entre outros.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-225b3eaa478e10f71a4ea12e4c1934ac\"><strong>Osmose reversa<\/strong><\/h3>\n\n\n\n<p>Por fim, agora que voc\u00ea j\u00e1 sabe o que s\u00e3o microfiltra\u00e7\u00e3o, ultrafiltra\u00e7\u00e3o e nanofiltra\u00e7\u00e3o. Chegou a hora de entender como funciona a osmose reversa.<\/p>\n\n\n\n<p>Portanto, trata-se de um processo de separa\u00e7\u00e3o por membranas utilizado quando \u00e9 preciso reter solutos de baixa massa molecular. Ou seja, sais inorg\u00e2nicos ou pequenas mol\u00e9culas.<\/p>\n\n\n\n<p>Por isso, as membranas de OI devem ter poros menores e serem mais fechadas. Desse modo, apresentam maior resist\u00eancia \u00e0 permea\u00e7\u00e3o e press\u00f5es mais elevadas que as utilizadas na ultrafiltra\u00e7\u00e3o.<\/p>\n\n\n\n<p>De acordo com especialistas, o nome osmose reversa surgiu pelo fato deste processo contar com o fluxo permeado no sentido inverso do osm\u00f3tico normal.<\/p>\n\n\n\n<p>Ali\u00e1s, o m\u00e9todo \u00e9 bastante utilizado no tratamento da \u00e1gua, como em caldeiras de campos industriais, no processo de dessaliniza\u00e7\u00e3o de \u00e1gua do mar e at\u00e9 mesmo no tratamento de \u00e1guas residuais para reuso.<\/p>\n\n\n\n<p>Como voc\u00ea viu ao longo deste texto, existem algumas diferen\u00e7as cruciais entre os processos de filtra\u00e7\u00e3o, que s\u00e3o utilizados em variados setores.<\/p>\n\n\n\n<p>Mas, caso queira saber mais sobre separa\u00e7\u00e3o por membranas, temos um texto que explica como o m\u00e9todo funciona na produ\u00e7\u00e3o de l\u00e1cteos.<\/p>\n\n\n\n<p>Ent\u00e3o, se voc\u00ea se interessa pelo assunto,\u00a0<a href=\"https:\/\/www.gvs.com.br\/life-sciences\/2025\/01\/02\/processos-de-separacao-por-membrana-microfiltracao-para-lacteos\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>clique aqui<\/strong>\u00a0<\/a>e leia agora mesmo!<\/p>\n\n\n\n<div class=\"wp-block-uagb-separator uagb-block-6ec145c0\"><div class=\"uagb-separator-spacing-wrapper\"><div class=\"wp-block-uagb-separator__inner\" style=\"--my-background-image:\"><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-call-to-action uagb-block-da331e7c wp-block-button\"><div class=\"uagb-cta__wrap\"><h3 class=\"uagb-cta__title\">Fale com a gente!<\/h3><p class=\"uagb-cta__desc\">Entre em contato com o nosso time hoje mesmo, esclare\u00e7a as suas d\u00favidas e <strong>solicite a sua cota\u00e7\u00e3o!<\/strong><\/p><\/div><div class=\"uagb-cta__buttons\"><a href=\"https:\/\/wa.me\/5519997710045\" class=\"uagb-cta__button-link-wrapper wp-block-button__link\" target=\"_blank\" rel=\"noopener noreferrer\">WhastApp<\/a><\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-separator uagb-block-ee9b8592\"><div class=\"uagb-separator-spacing-wrapper\"><div class=\"wp-block-uagb-separator__inner\" style=\"--my-background-image:\"><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-call-to-action uagb-block-5a340998 wp-block-button\"><div class=\"uagb-cta__wrap\"><h3 class=\"uagb-cta__title\">Fique por dentro das novidades!<\/h3><p class=\"uagb-cta__desc\">Acesse e conhe\u00e7a a Linha Completa de<strong>&nbsp;Life Sciences da GVS<\/strong>.<\/p><\/div><div class=\"uagb-cta__buttons\"><a href=\"https:\/\/www.gvs.com.br\/life-sciences\" class=\"uagb-cta__button-link-wrapper wp-block-button__link\" target=\"_blank\" rel=\"noopener noreferrer\">Acesse J\u00e1!<\/a><\/div><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microfiltra\u00e7\u00e3o, nanofiltra\u00e7\u00e3o e ultrafiltra\u00e7\u00e3o: Descubra as diferen\u00e7as entre os processos Veja, tamb\u00e9m, como funciona o m\u00e9todo de osmose reversa Como [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1959,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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