{"id":3431,"date":"2020-12-02T07:57:49","date_gmt":"2020-12-02T07:57:49","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=3431"},"modified":"2026-04-28T10:41:48","modified_gmt":"2026-04-28T10:41:48","slug":"what-reagents-are-used-for-seawater-desalination","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/what-reagents-are-used-for-seawater-desalination\/","title":{"rendered":"Por que usar agentes especiais para dessaliniza\u00e7\u00e3o? Quais reagentes s\u00e3o usados para a dessaliniza\u00e7\u00e3o da \u00e1gua do mar?"},"content":{"rendered":"<h4 class=\"wp-block-heading\">O desenvolvimento da dessaliniza\u00e7\u00e3o da \u00e1gua do mar come\u00e7ou na d\u00e9cada de 1960. Ap\u00f3s d\u00e9cadas de desenvolvimento, a tecnologia de dessaliniza\u00e7\u00e3o da \u00e1gua do mar est\u00e1 relativamente madura. Entre elas, os m\u00e9todos de destila\u00e7\u00e3o e de membrana se tornaram as principais tecnologias. Atualmente, o m\u00e9todo de destila\u00e7\u00e3o ainda domina todo o mercado de dessaliniza\u00e7\u00e3o internacionalmente, mas sua velocidade de desenvolvimento fica atr\u00e1s do m\u00e9todo de osmose reversa. O m\u00e9todo de destila\u00e7\u00e3o refere-se ao m\u00e9todo de dessaliniza\u00e7\u00e3o da \u00e1gua do mar usando energia t\u00e9rmica, incluindo evapora\u00e7\u00e3o instant\u00e2nea de m\u00faltiplos est\u00e1gios (MSF), evapora\u00e7\u00e3o de m\u00faltiplos efeitos (MED), destila\u00e7\u00e3o de vapor sob press\u00e3o (VC) etc. O m\u00e9todo de membrana usa principalmente a permeabilidade seletiva da membrana para separar a \u00e1gua salgada a fim de atingir o objetivo da dessaliniza\u00e7\u00e3o da \u00e1gua do mar, incluindo principalmente osmose reversa (RO) e eletrodi\u00e1lise (ED). A opera\u00e7\u00e3o industrial da dessaliniza\u00e7\u00e3o \u00e9 geralmente mais alta do que o custo do desenvolvimento e da utiliza\u00e7\u00e3o de recursos h\u00eddricos convencionais. O custo da dessaliniza\u00e7\u00e3o da \u00e1gua do mar inclui custos de energia, custos de reagentes, custos de equipamentos, taxas de gerenciamento, etc. No futuro, \u00e0 medida que a participa\u00e7\u00e3o da dessaliniza\u00e7\u00e3o da \u00e1gua do mar na produ\u00e7\u00e3o humana e na \u00e1gua dom\u00e9stica aumentar gradualmente, a demanda por agentes de tratamento de \u00e1gua no campo da dessaliniza\u00e7\u00e3o da \u00e1gua do mar continuar\u00e1 a crescer.<\/h4>\n\n<!-- lc-qa-start -->\n<p><strong>Resposta r\u00e1pida:<\/strong> Uma decis\u00e3o pr\u00e1tica de aditivo come\u00e7a com o defeito exato: espuma, molhabilidade deficiente, crateras, n\u00e9voa ou instabilidade. Geralmente, o melhor produto \u00e9 aquele que resolve esse defeito com a janela de compatibilidade mais segura.<\/p>\n<!-- lc-qa-end -->\n\n\n\n\n\n\n<h4 class=\"wp-block-heading\">Para o m\u00e9todo de membrana, durante a opera\u00e7\u00e3o de dessaliniza\u00e7\u00e3o da \u00e1gua do mar, devido a mudan\u00e7as na temperatura da \u00e1gua do mar, no pH, na concentra\u00e7\u00e3o de \u00edons etc., os \u00edons de c\u00e1lcio e magn\u00e9sio na \u00e1gua do mar podem gerar precipitados de carbonato, sal \u00e1cido e hidr\u00f3xido, que bloqueiam os poros da membrana e reduzem a membrana. Portanto, \u00e9 necess\u00e1rio adicionar inibidores de incrusta\u00e7\u00e3o, detergentes, floculantes, inibidores de incrusta\u00e7\u00e3o e dispersantes \u00e0 \u00e1gua para reduzir o impacto da deposi\u00e7\u00e3o de incrusta\u00e7\u00e3o na membrana de osmose reversa. No caso do m\u00e9todo de destila\u00e7\u00e3o, \u00e9 f\u00e1cil produzir incrusta\u00e7\u00f5es e reduzir a efici\u00eancia da evapora\u00e7\u00e3o. O pr\u00e9-tratamento da \u00e1gua do mar pode ser usado para reduzir o impacto. Adicionar sal de poli\u00e1cido, \u00e1cido org\u00e2nico, \u00e1cido policarbox\u00edlico fosf\u00f4nico etc. \u00e0 \u00e1gua bruta para suavizar a qualidade da \u00e1gua e aos \u00edons de c\u00e1lcio e magn\u00e9sio e outros \u00edons met\u00e1licos quelados para dificultar a precipita\u00e7\u00e3o e evitar a forma\u00e7\u00e3o de incrusta\u00e7\u00f5es.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"has-inline-color has-pale-cyan-blue-color\"><a rel=\"noreferrer noopener\" href=\"https:\/\/longchangchemical.com\/pt\/product\/chlorine-dioxide-tablets-cas-10049-04-4\/\" target=\"_blank\">Comprimidos de di\u00f3xido de cloro<\/a><\/span> s\u00e3o os produtos superiores da nossa empresa. Desinfec\u00e7\u00e3o de \u00e1gua pot\u00e1vel e de torneira em v\u00e1rias ocasi\u00f5es. Desinfec\u00e7\u00e3o, esteriliza\u00e7\u00e3o, desodoriza\u00e7\u00e3o e tratamento antimofo de instrumentos m\u00e9dicos, de sa\u00fade e cl\u00ednicos. Esteriliza\u00e7\u00e3o e desodoriza\u00e7\u00e3o na reutiliza\u00e7\u00e3o de \u00e1gua recuperada.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">A dessaliniza\u00e7\u00e3o da \u00e1gua do mar por osmose reversa usa alta press\u00e3o para separar a \u00e1gua doce por meio de uma membrana de osmose reversa, e a parte restante formar\u00e1 \u00e1gua concentrada com alto teor de sal, o que inevitavelmente causar\u00e1 incrusta\u00e7\u00e3o e forma\u00e7\u00e3o de espuma, afetando a opera\u00e7\u00e3o normal do equipamento. Opera\u00e7\u00e3o e vida \u00fatil. Isso requer a adi\u00e7\u00e3o de produtos qu\u00edmicos de tratamento de \u00e1gua correspondentes \u00e0 \u00e1gua para tratamento, a fim de evitar incrusta\u00e7\u00f5es e eliminar bact\u00e9rias, de modo a garantir a qualidade da \u00e1gua e prolongar a vida \u00fatil do equipamento.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Existem normas claras e especifica\u00e7\u00f5es operacionais rigorosas para os m\u00e9todos de dosagem de agentes especiais para dessaliniza\u00e7\u00e3o da \u00e1gua do mar. Os agentes comuns de tratamento de \u00e1gua n\u00e3o podem atender \u00e0 opera\u00e7\u00e3o normal do equipamento de dessaliniza\u00e7\u00e3o de \u00e1gua do mar, e os agentes especiais para o equipamento de dessaliniza\u00e7\u00e3o de \u00e1gua do mar n\u00e3o s\u00e3o usados de acordo com a propor\u00e7\u00e3o prescrita. Depois que o equipamento estiver em opera\u00e7\u00e3o por um per\u00edodo de tempo, haver\u00e1 consequ\u00eancias, como a qualidade da \u00e1gua abaixo do padr\u00e3o.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Entre em contato conosco agora!<\/strong><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">A Longchang Chemical \u00e9 especializada na venda de inibidores de incrusta\u00e7\u00e3o, detergentes, floculantes, inibidores de incrusta\u00e7\u00e3o e dispersantes. Normalmente, entraremos em contato com voc\u00ea dentro de 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail\u00a0<strong>info@longchangchemical.com<\/strong>\u00a0durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Este artigo foi escrito pelo Departamento de P&amp;D da Longchang Chemical. Se voc\u00ea precisar copiar e reimprimir, indique a fonte<\/h4>\n\n\n<!-- lc-commercial-start -->\n<h2>Uma lista de verifica\u00e7\u00e3o pr\u00e1tica para aditivos de molhagem, nivelamento e antiespumantes<\/h2>\n<p>A sele\u00e7\u00e3o aditiva \u00e9 geralmente mais eficaz quando a equipe define o defeito primeiro e, em seguida, avalia a compatibilidade, a faixa de dosagem e a etapa do processo. Isso \u00e9 muitas vezes muito mais confi\u00e1vel do que escolher apenas pela fam\u00edlia qu\u00edmica ou por um \u00fanico resultado laboratorial dram\u00e1tico.<\/p>\n<ul>\n<li><strong>Comece pelo defeito, n\u00e3o pelo nome do aditivo:<\/strong> Perda por umedecimento, cratera, microespuma e instabilidade frequentemente precisam de solu\u00e7\u00f5es diferentes, mesmo dentro da mesma f\u00f3rmula.<\/li>\n<li><strong>Verifique a compatibilidade na dosagem pretendida:<\/strong> o aditivo mais forte ainda pode ser a escolha comercial errada se ele estreitar demais a janela de processo.<\/li>\n<li><strong>Revise o est\u00e1gio de uso:<\/strong> alguns produtos s\u00e3o mais \u00fateis durante a moagem, enquanto outros importam mais na dilui\u00e7\u00e3o, no enchimento ou na aplica\u00e7\u00e3o final.<\/li>\n<li><strong>Equilibre cura ou qualidade do filme com controle de defeitos:<\/strong> o aditivo certo resolve o problema sem sacrificar a ader\u00eancia, o brilho ou a apar\u00eancia.<\/li>\n<\/ul>\n<h3>Refer\u00eancias de produtos recomendadas<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> Um antiespumante balanceado de refer\u00eancia para revestimentos \u00e0 base de \u00e1gua e muitas telas de controle de espuma de uso geral.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> \u00datil quando a compatibilidade entre tinta de impress\u00e3o e tinta UV \u00e9 importante na tela antiespumante.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> Uma op\u00e7\u00e3o antiespumante mais forte para espumas persistentes que sobrevivem a condi\u00e7\u00f5es mais severas.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> Um referente forte de agente molhante para tintas, revestimentos e molhagem de substratos dif\u00edceis.<\/li>\n<\/ul>\n<h3>FAQ para compradores e formuladores<\/h3>\n<p><strong>Por que um aditivo que parece poderoso em um b\u00e9quer \u00e0s vezes falha na produ\u00e7\u00e3o?<\/strong><br \/>Porque cisalhamento, temperatura, substrato e a f\u00f3rmula completa podem alterar a maneira como o aditivo se comporta sob condi\u00e7\u00f5es reais de processamento.<\/p>\n<p><strong>O aditivo mais agressivo deve ser sempre preferido?<\/strong><br \/>Geralmente n\u00e3o. O melhor aditivo \u00e9 aquele que resolve o defeito real, mantendo a mais ampla janela de opera\u00e7\u00e3o segura.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>The development of seawater desalination began in the 1960s. After decades of development, seawater desalination technology has been relatively mature. Among them, distillation and membrane methods have become mainstream technologies.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3431","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why use special agents for desalination? What reagents are used for seawater desalination? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"The development of seawater desalination began in the 1960s. After decades of development, seawater desalination technology has been relatively mature....\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/pt\/what-reagents-are-used-for-seawater-desalination\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why use special agents for desalination? What reagents are used for seawater desalination? - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"The development of seawater desalination began in the 1960s. 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Quais reagentes s\u00e3o usados para dessaliniza\u00e7\u00e3o da \u00e1gua do mar? - Qu\u00edmica Longchang","isPartOf":{"@id":"https:\/\/longchangchemical.com\/#website"},"datePublished":"2020-12-02T07:57:49+00:00","dateModified":"2026-04-28T10:41:48+00:00","description":"O desenvolvimento da dessaliniza\u00e7\u00e3o da \u00e1gua do mar come\u00e7ou na d\u00e9cada de 1960. 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