{"id":3869,"date":"2026-04-28T10:09:13","date_gmt":"2026-04-28T02:09:13","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3869"},"modified":"2026-04-28T10:12:11","modified_gmt":"2026-04-28T02:12:11","slug":"how-calcium-carbonate-modification-transforms-ultrafine-powders-into-high-efficiency-wastewater-purifiers%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/pt\/how-calcium-carbonate-modification-transforms-ultrafine-powders-into-high-efficiency-wastewater-purifiers%ef%bc%9f\/","title":{"rendered":"Como a modifica\u00e7\u00e3o do carbonato de c\u00e1lcio transforma p\u00f3s ultrafinos em purificadores de \u00e1guas residuais de alta efici\u00eancia?"},"content":{"rendered":"<p>No contexto da acelera\u00e7\u00e3o da industrializa\u00e7\u00e3o global e de regulamenta\u00e7\u00f5es ambientais cada vez mais rigorosas, o tratamento de \u00e1guas residuais industriais tornou-se um desafio fundamental para a manufatura sustent\u00e1vel. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/\">Carbonato de c\u00e1lcio (CaCO3)<\/a>O carbonato de c\u00e1lcio, um mineral natural amplamente dispon\u00edvel, econ\u00f4mico e n\u00e3o t\u00f3xico, tem sido utilizado h\u00e1 muito tempo na constru\u00e7\u00e3o civil, na fabrica\u00e7\u00e3o de papel e na produ\u00e7\u00e3o de pl\u00e1sticos. No entanto, a aplica\u00e7\u00e3o do carbonato de c\u00e1lcio comum de grau industrial no tratamento de \u00e1guas residuais \u00e9 frequentemente dificultada por sua pequena \u00e1rea superficial espec\u00edfica, baixa reatividade e propriedades f\u00edsico-qu\u00edmicas limitadas.<\/p>\n\n\n\n<p>Nos \u00faltimos anos, a profunda integra\u00e7\u00e3o da tecnologia de moagem ultrafina e da modifica\u00e7\u00e3o de superf\u00edcie permitiu que o p\u00f3 de carbonato de c\u00e1lcio ultrafino modificado demonstrasse desempenho superior na remo\u00e7\u00e3o de metais pesados, neutraliza\u00e7\u00e3o de \u00e1cidos e tratamento de efluentes t\u00eaxteis. Este artigo explora como aprimorar fundamentalmente a efici\u00eancia do tratamento de efluentes por meio do controle do tamanho das part\u00edculas, da modifica\u00e7\u00e3o f\u00edsico-qu\u00edmica e da integra\u00e7\u00e3o de processos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/ultrafine-powder-dry-grinding\/\">Moagem ultrafina<\/a> \u2014 O primeiro passo para ativar o potencial ambiental<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System.webp\" alt=\"Moinho de bolas para carbonato de c\u00e1lcio mo\u00eddo + sistema de classifica\u00e7\u00e3o\" class=\"wp-image-3779\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-300x225.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-768x576.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Moinho de bolas para carbonato de c\u00e1lcio mo\u00eddo + sistema de classifica\u00e7\u00e3o<\/figcaption><\/figure>\n\n\n\n<p>A moagem ultrafina n\u00e3o \u00e9 meramente uma mudan\u00e7a de tamanho; representa um salto qualitativo nas propriedades f\u00edsicas do material.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Aumento exponencial da \u00e1rea superficial espec\u00edfica<\/h3>\n\n\n\n<p>As rea\u00e7\u00f5es de adsor\u00e7\u00e3o e neutraliza\u00e7\u00e3o no tratamento de \u00e1guas residuais s\u00e3o altamente dependentes da \u00e1rea de contato. Enquanto o carbonato de c\u00e1lcio em p\u00f3 comum, com granulometria de 200 mesh, possui um n\u00famero limitado de s\u00edtios ativos, o seu processamento para uma granulometria ultrafina (D50 \u2264 2 \u03bcm) por meio de moinhos de jato de leito fluidizado ou linhas de classifica\u00e7\u00e3o com moinho de bolas resulta em um aumento exponencial da \u00e1rea superficial espec\u00edfica. Isso permite que uma unidade de massa de carbonato de c\u00e1lcio forne\u00e7a um n\u00famero significativamente maior de s\u00edtios ativos para capturar \u00edons de metais pesados (por exemplo, Pb\u00b2\u207a, Cd\u00b2\u207a) ou neutralizar subst\u00e2ncias \u00e1cidas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Energia Livre de Superf\u00edcie e Reatividade<\/h3>\n\n\n\n<p>Os efeitos mecanoqu\u00edmicos s\u00e3o um fen\u00f4meno vital durante a moagem ultrafina. Durante o impacto e o cisalhamento em alta velocidade, a estrutura cristalina do carbonato de c\u00e1lcio sofre distor\u00e7\u00e3o, levando a um aumento da energia superficial. Isso garante que o p\u00f3 ultrafino possua maior reatividade qu\u00edmica quando disperso em \u00e1gua, permitindo uma participa\u00e7\u00e3o mais r\u00e1pida na precipita\u00e7\u00e3o qu\u00edmica.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Modifica\u00e7\u00e3o do carbonato de c\u00e1lcio \u2014 potencializando o \u201creconhecimento\u201d e a \u201ccaptura\u201d<\/h2>\n\n\n\n<p>O processamento ultrafino puro n\u00e3o consegue resolver os problemas de dispersibilidade e seletividade em ambientes complexos de \u00e1guas residuais. A funcionaliza\u00e7\u00e3o deve ser alcan\u00e7ada por meio da modifica\u00e7\u00e3o com carbonato de c\u00e1lcio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/surface-modification\/\">Modifica\u00e7\u00e3o Qu\u00edmica de Superf\u00edcie<\/a>: Construindo \u201cPin\u00e7as Qu\u00edmicas\u201d<\/h3>\n\n\n\n<p>Ao revestir carbonato de c\u00e1lcio ultrafino com modificadores org\u00e2nicos (como agentes de acoplamento de silano, \u00e1cido este\u00e1rico ou sais de am\u00f4nio quatern\u00e1rio), as propriedades da carga superficial podem ser alteradas estrategicamente:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modifica\u00e7\u00e3o ani\u00f4nica:<\/strong> Confere uma carga negativa \u00e0 superf\u00edcie, aumentando a adsor\u00e7\u00e3o eletrost\u00e1tica de \u00edons cati\u00f4nicos de metais pesados.<\/li>\n\n\n\n<li><strong>Enxerto de grupos funcionais quelantes:<\/strong> A incorpora\u00e7\u00e3o de mol\u00e9culas com fun\u00e7\u00f5es quelantes no p\u00f3 ultrafino permite que ele &quot;prenda&quot; e capture poluentes espec\u00edficos com precis\u00e3o.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Modifica\u00e7\u00e3o de Revestimento Inorg\u00e2nico<\/h3>\n\n\n\n<p>A utiliza\u00e7\u00e3o de s\u00edlica (SiO2) ou alumina ativada para revestimento superficial aumenta a resist\u00eancia \u00e1cida do carbonato de c\u00e1lcio. Isso impede a dissolu\u00e7\u00e3o prematura em ambientes altamente \u00e1cidos, prolongando o tempo de adsor\u00e7\u00e3o e melhorando a profundidade do tratamento.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Ajuste do equil\u00edbrio hidrof\u00edlico\/lipof\u00edlico<\/h3>\n\n\n\n<p>Para \u00e1guas residuais oleosas, a modifica\u00e7\u00e3o com carbonato de c\u00e1lcio pode tornar o p\u00f3 hidrof\u00f3bico e oleof\u00edlico. Isso permite que ele atue como um desemulsificante eficiente, adsorvendo e removendo os componentes do \u00f3leo de forma eficaz.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"580\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine.webp\" alt=\"M\u00e1quina de Revestimento de Carbonato de C\u00e1lcio\" class=\"wp-image-3835\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine-300x218.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine-768x557.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">M\u00e1quina de Revestimento de Carbonato de C\u00e1lcio<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Mecanismos Essenciais para Aumentar a Efic\u00e1cia do Tratamento<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Tratamento sin\u00e9rgico de metais pesados<\/h3>\n\n\n\n<p>O carbonato de c\u00e1lcio ultrafino modificado segue um mecanismo triplo de \u201cAdsor\u00e7\u00e3o-Troca-Precipita\u00e7\u00e3o\u201d:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Adsor\u00e7\u00e3o:<\/strong> Adsor\u00e7\u00e3o f\u00edsica gerada pela \u00e1rea superficial espec\u00edfica ultra-alta.<\/li>\n\n\n\n<li><strong>Troca i\u00f4nica:<\/strong> Os grupos ativos fornecidos pela camada de modifica\u00e7\u00e3o trocam de lugar com os \u00edons met\u00e1licos.<\/li>\n\n\n\n<li><strong>Neutraliza\u00e7\u00e3o in situ:<\/strong> A alcalinidade produzida pela hidr\u00f3lise do carbonato de c\u00e1lcio promove a forma\u00e7\u00e3o de hidr\u00f3xidos met\u00e1licos, que envolvem as part\u00edculas formando flocos grandes e facilmente sediment\u00e1veis.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Neutraliza\u00e7\u00e3o precisa de \u00e1guas residuais \u00e1cidas<\/h3>\n\n\n\n<p>Em compara\u00e7\u00e3o com o hidr\u00f3xido de s\u00f3dio ou a cal viva tradicionais, o carbonato de c\u00e1lcio ultrafino modificado oferece um processo de neutraliza\u00e7\u00e3o mais suave. Ele evita a polui\u00e7\u00e3o secund\u00e1ria causada pela alcalinidade excessiva localizada e produz subprodutos (como o sulfato de c\u00e1lcio) com tamanhos de part\u00edculas uniformes e f\u00e1ceis de separar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Flocula\u00e7\u00e3o e Sedimenta\u00e7\u00e3o Aprimoradas<\/h3>\n\n\n\n<p>Part\u00edculas ultrafinas atuam como \u201cmicron\u00facleos\u201d. Quando floculantes de alto peso molecular (como o PAM) s\u00e3o adicionados, as part\u00edculas modificadas guiam os poluentes, levando-os a se agregarem rapidamente. A melhor dispersibilidade garante que o p\u00f3 n\u00e3o forme grumos ap\u00f3s a dosagem, maximizando a utiliza\u00e7\u00e3o do produto qu\u00edmico.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Estudo de Caso e An\u00e1lise Econ\u00f4mica<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Descolora\u00e7\u00e3o de \u00e1guas residuais contendo corantes<\/h3>\n\n\n\n<p>Em uma grande f\u00e1brica de impress\u00e3o e tingimento, foi introduzido carbonato de c\u00e1lcio ultrafino modificado com sal de am\u00f4nio quatern\u00e1rio:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Taxa de descolora\u00e7\u00e3o:<\/strong> Aumentou de 75% para mais de 96%.<\/li>\n\n\n\n<li><strong>Dosagem:<\/strong> O consumo de carbonato de c\u00e1lcio foi reduzido pela cepa 30% devido ao aumento da atividade.<\/li>\n\n\n\n<li><strong>Gest\u00e3o de Lodo:<\/strong> A lama mineral resultante apresentou excelentes propriedades de desidrata\u00e7\u00e3o, reduzindo os custos subsequentes.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Benef\u00edcios Econ\u00f4micos e Ambientais<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vantagem de custo:<\/strong> O carbonato de c\u00e1lcio modificado custa apenas uma fra\u00e7\u00e3o do pre\u00e7o do carv\u00e3o ativado ou das resinas de troca i\u00f4nica especializadas.<\/li>\n\n\n\n<li><strong>Transforma\u00e7\u00e3o de res\u00edduos em valor:<\/strong> Muitos subprodutos industriais de carbonato de c\u00e1lcio podem ser devolvidos ao setor ambiental ap\u00f3s modifica\u00e7\u00e3o ultrafina, alcan\u00e7ando uma economia circular.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/ball-millair-classifierPin-mill-coating-machine.webp\" alt=\"moinho de bolas + classificador de ar + m\u00e1quina de revestimento de moinho de pinos\" class=\"wp-image-3803\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/ball-millair-classifierPin-mill-coating-machine.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/ball-millair-classifierPin-mill-coating-machine-300x225.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/ball-millair-classifierPin-mill-coating-machine-768x576.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/ball-millair-classifierPin-mill-coating-machine-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">moinho de bolas + classificador de ar + m\u00e1quina de revestimento de moinho de pinos<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/contact\/\">Conclus\u00e3o<\/a><\/h2>\n\n\n\n<p>Ao utilizar tecnologia de moagem ultrafina para aumentar a atividade f\u00edsica e aplicar modifica\u00e7\u00f5es direcionadas ao carbonato de c\u00e1lcio, este mineral tradicional \u00e9 transformado em uma ferramenta de alta precis\u00e3o para o tratamento de \u00e1guas residuais. Isso n\u00e3o \u00e9 apenas um avan\u00e7o na ci\u00eancia dos materiais, mas uma necessidade para a transforma\u00e7\u00e3o verde da ind\u00fastria.<\/p>\n\n\n\n<p>Para empresas de tratamento de \u00e1guas residuais, a escolha de solu\u00e7\u00f5es em p\u00f3 ultrafino com controle preciso do tamanho das part\u00edculas e processos de modifica\u00e7\u00e3o de alta efici\u00eancia ser\u00e1 o caminho mais eficaz para reduzir os custos ambientais e atender aos padr\u00f5es de conformidade em 2026 e nos anos seguintes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"721\" height=\"721\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-3708\" style=\"width:150px;height:150px\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp 721w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Obrigado pela leitura. Espero que meu artigo tenha ajudado. Deixe um coment\u00e1rio abaixo. Voc\u00ea tamb\u00e9m pode entrar em contato com o suporte online da Zelda para quaisquer outras d\u00favidas.<\/p>\n<cite>                                                                                                                                                                                 \u2014 Publicado por <a href=\"https:\/\/www.linkedin.com\/company\/76603359\/admin\/dashboard\/\">Emily Chen<\/a><\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/pt\/wp-json\/wp\/v2\/posts\/3869#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/pt\/wp-json\/wp\/v2\/posts\/3869#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu nome*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Sua empresa\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Sua mensagem\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Enviar\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 40%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\nwidth: 40%;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 90%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"pt\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>No contexto da acelera\u00e7\u00e3o da industrializa\u00e7\u00e3o global e das regulamenta\u00e7\u00f5es ambientais cada vez mais rigorosas, o tratamento de efluentes industriais tornou-se um desafio fundamental para a manufatura sustent\u00e1vel. O carbonato de c\u00e1lcio (CaCO3), um mineral natural amplamente dispon\u00edvel, econ\u00f4mico e n\u00e3o t\u00f3xico, tem sido utilizado h\u00e1 muito tempo na constru\u00e7\u00e3o civil, na fabrica\u00e7\u00e3o de papel e na produ\u00e7\u00e3o de pl\u00e1sticos. No entanto, a aplica\u00e7\u00e3o de carbonato de c\u00e1lcio comum de grau industrial em [\u2026]<\/p>","protected":false},"author":1,"featured_media":3835,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","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":"set","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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