{"id":7063,"date":"2024-07-01T06:11:55","date_gmt":"2024-07-01T06:11:55","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7063"},"modified":"2026-04-28T10:42:30","modified_gmt":"2026-04-28T10:42:30","slug":"what-are-mbr-membranes-and-their-combined-processes","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/what-are-mbr-membranes-and-their-combined-processes\/","title":{"rendered":"O que s\u00e3o as membranas MBR e seus processos combinados?"},"content":{"rendered":"<h1>O que s\u00e3o as membranas MBR e seus processos combinados?<\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Resposta r\u00e1pida:<\/strong> Wastewater and treatment-process decisions are usually made by looking at influent composition, process stage, compliance target, and whether the proposed adjustment still behaves well at plant scale. The most useful answer almost always comes from system-level diagnosis, not a single metric.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p><strong>O que \u00e9 o processo MBR?<\/strong><\/p>\n<p>O biorreator de membrana (Membrance Bioreactor Reactor, conhecido como MBR) \u00e9 um novo processo de tratamento biol\u00f3gico de \u00e1guas residuais por meio da combina\u00e7\u00e3o de separa\u00e7\u00e3o por membrana e tecnologia de tratamento biol\u00f3gico.<\/p>\n<p>H\u00e1 muitos tipos de membranas, de acordo com o mecanismo de separa\u00e7\u00e3o, h\u00e1 membranas de rea\u00e7\u00e3o, membranas de troca i\u00f4nica, membranas perme\u00e1veis etc.; de acordo com a classifica\u00e7\u00e3o da natureza da membrana, h\u00e1 membranas naturais (biomembranas) e membranas sint\u00e9ticas (membranas org\u00e2nicas e membranas inorg\u00e2nicas); de acordo com a classifica\u00e7\u00e3o da estrutura do tipo de membrana, h\u00e1 membranas do tipo placa plana, tubular, espiral e de fibra oca etc.<\/p>\n<p><strong>Processo MBR no status de pesquisa nacional<\/strong><\/p>\n<p>Desde a d\u00e9cada de 80, o biorreator de membrana est\u00e1 recebendo cada vez mais aten\u00e7\u00e3o, tornando-se um dos pontos quentes da pesquisa. Atualmente, a tecnologia tem sido usada nos Estados Unidos, na Alemanha, na Fran\u00e7a, no Egito e em outros pa\u00edses, variando a escala de 6m3\/d a 13000m3\/d.<\/p>\n<p>A pesquisa da China sobre MBR tem menos de dez anos, mas o progresso \u00e9 muito r\u00e1pido. A pesquisa nacional sobre MBR pode ser dividida em v\u00e1rios aspectos:<\/p>\n<p>(1) explorar diferentes processos de tratamento biol\u00f3gico e a forma de combina\u00e7\u00e3o de unidades de separa\u00e7\u00e3o por membrana, processo de tratamento de rea\u00e7\u00e3o biol\u00f3gica do m\u00e9todo de lodo ativado para expandir para o m\u00e9todo de oxida\u00e7\u00e3o por contato, m\u00e9todo de biofilme, lodo ativado e biofilme combinados com o processo composto, processo anaer\u00f3bico de duas fases;<\/p>\n<p>(2) Pesquisar fatores, mecanismos e modelos matem\u00e1ticos que afetam o efeito do tratamento e a contamina\u00e7\u00e3o da membrana, explorar condi\u00e7\u00f5es operacionais e par\u00e2metros de processo adequados, reduzir ao m\u00e1ximo a contamina\u00e7\u00e3o da membrana e melhorar a capacidade de tratamento e a estabilidade operacional dos m\u00f3dulos de membrana;<\/p>\n<p>(3) Ampliar o escopo de aplica\u00e7\u00e3o do MBR, os objetos de pesquisa do MBR de \u00e1guas residuais dom\u00e9sticas para expandir para \u00e1guas residuais org\u00e2nicas de alta concentra\u00e7\u00e3o (\u00e1guas residuais de alimentos, \u00e1guas residuais de cerveja) e \u00e1guas residuais industriais dif\u00edceis de degradar (\u00e1guas residuais petroqu\u00edmicas, \u00e1guas residuais de impress\u00e3o e tingimento, etc.), mas o tratamento de \u00e1guas residuais dom\u00e9sticas \u00e9 o principal.<\/p>\n<p><strong>Quais s\u00e3o as caracter\u00edsticas do processo MBR?<\/strong><\/p>\n<p>Em compara\u00e7\u00e3o com a tecnologia tradicional de tratamento bioqu\u00edmico de \u00e1gua, o MBR tem as seguintes caracter\u00edsticas principais:<\/p>\n<p>1, separa\u00e7\u00e3o s\u00f3lido-l\u00edquido eficiente, o efeito de separa\u00e7\u00e3o \u00e9 muito melhor do que o do tanque de sedimenta\u00e7\u00e3o tradicional, a qualidade da \u00e1gua \u00e9 boa, os s\u00f3lidos suspensos e a turbidez do efluente s\u00e3o pr\u00f3ximos de zero, podem ser reutilizados diretamente, para alcan\u00e7ar os recursos de esgoto.<\/p>\n<p>2, a alta efici\u00eancia do efeito de reten\u00e7\u00e3o da membrana, de modo que os microrganismos s\u00e3o completamente retidos no biorreator, para alcan\u00e7ar o tempo de reten\u00e7\u00e3o hidr\u00e1ulica (HRT) do reator e a idade do lodo (SRT) da separa\u00e7\u00e3o completa, controle de opera\u00e7\u00e3o flex\u00edvel e est\u00e1vel.<\/p>\n<p>3 \u3001 Como o MBR ser\u00e1 o tratamento tradicional de \u00e1guas residuais do tanque de aera\u00e7\u00e3o e de dois tanques de sedimenta\u00e7\u00e3o em um s\u00f3, e substituir\u00e1 todas as instala\u00e7\u00f5es de processo do tratamento terci\u00e1rio, ele poder\u00e1 reduzir bastante a \u00e1rea ocupada, economizando investimentos civis.<\/p>\n<p>4, prop\u00edcio para a reten\u00e7\u00e3o e propaga\u00e7\u00e3o de bact\u00e9rias nitrificantes, alta efici\u00eancia de nitrifica\u00e7\u00e3o do sistema. Com a mudan\u00e7a do modo de opera\u00e7\u00e3o, ele tamb\u00e9m pode ter a fun\u00e7\u00e3o de remo\u00e7\u00e3o de am\u00f4nia e de f\u00f3sforo.<\/p>\n<p>5, porque a idade da lama pode ser muito longa, o que melhora muito a efici\u00eancia da degrada\u00e7\u00e3o de mat\u00e9ria org\u00e2nica de dif\u00edcil degrada\u00e7\u00e3o.<\/p>\n<p>6 \u3001 O reator opera sob alta carga de volume, baixa carga de lodo e longa idade de lodo, a produ\u00e7\u00e3o de lodo restante \u00e9 muito baixa, porque a idade do lodo pode ser infinitamente longa, teoricamente, a descarga de lodo pode ser zero.<\/p>\n<p>7, o sistema realiza controle PLC, opera\u00e7\u00e3o e gerenciamento convenientes.<\/p>\n<p><strong>Quais s\u00e3o os componentes do processo MBR?<\/strong><\/p>\n<p>O biorreator de membrana comumente mencionado \u00e9, na verdade, um termo geral para tr\u00eas tipos de reatores:<\/p>\n<p>Biorreator de Membrana de Aera\u00e7\u00e3o (AMBR);<\/p>\n<p>Biorreator de membrana extrativa (EMBR);<\/p>\n<p>\u2462 membrana de separa\u00e7\u00e3o s\u00f3lido-l\u00edquido - biorreator (Solid\/Liquid Separation MembraneBioreactor, SLSMBR, abreviado como MBR).<\/p>\n<p><strong>1. Membrana de aera\u00e7\u00e3o<\/strong><\/p>\n<p>Membrana de aera\u00e7\u00e3o - Biorreator (AMBR) usando membrana densa respir\u00e1vel (como membrana de borracha de silicone) ou membrana microporosa (como membrana polim\u00e9rica hidrof\u00f3bica), componentes do tipo placa ou fibra oca, mantendo a press\u00e3o parcial do g\u00e1s abaixo do ponto de bolha (Bubble Point), no caso de aera\u00e7\u00e3o sem bolhas, pode ser obtida para o biorreator.<\/p>\n<p>O processo \u00e9 caracterizado por um melhor tempo de contato e efici\u00eancia de transfer\u00eancia de oxig\u00eanio, o que favorece o controle do processo de aera\u00e7\u00e3o e n\u00e3o \u00e9 afetado pelos fatores de tamanho de bolha e tempo de resid\u00eancia na aera\u00e7\u00e3o tradicional.<\/p>\n<p><strong>2. membrana de extra\u00e7\u00e3o<\/strong><\/p>\n<p>Bioreator de membrana extrativa, tamb\u00e9m conhecido como EMBR (Extractive Membrane Bioreactor). Devido \u00e0 alta acidez e alcalinidade ou \u00e0 presen\u00e7a de subst\u00e2ncias t\u00f3xicas para os organismos, algumas \u00e1guas residuais industriais n\u00e3o s\u00e3o adequadas para serem tratadas em contato direto com microrganismos; quando as \u00e1guas residuais cont\u00eam subst\u00e2ncias t\u00f3xicas vol\u00e1teis, se voc\u00ea usar o processo de tratamento biol\u00f3gico aer\u00f3bico tradicional, os poluentes s\u00e3o f\u00e1ceis de volatilizar, o fluxo de ar de aera\u00e7\u00e3o com a volatilidade do fen\u00f4meno de eleva\u00e7\u00e3o de g\u00e1s ocorre, n\u00e3o s\u00f3 o efeito do tratamento \u00e9 muito inst\u00e1vel, mas tamb\u00e9m causa polui\u00e7\u00e3o atmosf\u00e9rica.<\/p>\n<p>Para resolver essas dificuldades t\u00e9cnicas, o estudioso brit\u00e2nico Livingston pesquisou e desenvolveu o EMB. As \u00e1guas residuais e o lodo ativado s\u00e3o separados pela membrana, as \u00e1guas residuais no fluxo da membrana e cont\u00eam algum tipo de bact\u00e9ria especializada no lodo ativado no fluxo da membrana, as \u00e1guas residuais e os microrganismos n\u00e3o est\u00e3o em contato direto com os poluentes org\u00e2nicos, que podem ser seletivamente degradados pela membrana e pelo outro lado dos microrganismos.<\/p>\n<p>Como a unidade de biorreator e a unidade de reciclagem de \u00e1guas residuais em ambos os lados da membrana de extra\u00e7\u00e3o s\u00e3o independentes uma da outra, o fluxo de \u00e1gua de cada unidade tem pouca influ\u00eancia sobre a outra, e os nutrientes e as condi\u00e7\u00f5es de sobreviv\u00eancia microbiana no biorreator n\u00e3o s\u00e3o afetados pela qualidade das \u00e1guas residuais, o que torna o efeito do tratamento da \u00e1gua est\u00e1vel. As condi\u00e7\u00f5es operacionais do sistema, como HRT e SRT, podem ser controladas na faixa ideal para manter a taxa m\u00e1xima de degrada\u00e7\u00e3o de poluentes.<\/p>\n<p><strong>3. membrana de separa\u00e7\u00e3o s\u00f3lido-l\u00edquido<\/strong><\/p>\n<p>O biorreator de membrana de separa\u00e7\u00e3o s\u00f3lido-l\u00edquido \u00e9 a classe de biorreator de membrana mais amplamente pesquisada no campo do tratamento de \u00e1gua, \u00e9 um processo de separa\u00e7\u00e3o por membrana para substituir o m\u00e9todo tradicional de lodo ativado no tanque de sedimenta\u00e7\u00e3o secund\u00e1rio da tecnologia de tratamento de \u00e1gua. Ele reflui a mat\u00e9ria org\u00e2nica s\u00f3lida de volta para o reator por meio de um m\u00f3dulo de membrana e, em seguida, descarrega a \u00e1gua org\u00e2nica tratada. O tipo de biorreator de separa\u00e7\u00e3o por membrana pode ser classificado de acordo com a localiza\u00e7\u00e3o do m\u00f3dulo de membrana e do biorreator: biorreator de membrana integrado, biorreator de membrana discreto e biorreator de membrana composto.<\/p>\n<p>Na tecnologia tradicional de tratamento biol\u00f3gico de \u00e1guas residuais, a separa\u00e7\u00e3o lama-\u00e1gua no tanque de sedimenta\u00e7\u00e3o secund\u00e1rio \u00e9 realizada por gravidade, e sua efici\u00eancia de separa\u00e7\u00e3o depende do desempenho de sedimenta\u00e7\u00e3o do lodo ativado; quanto melhor for a sedimenta\u00e7\u00e3o, maior ser\u00e1 a efici\u00eancia de separa\u00e7\u00e3o lama-\u00e1gua. A propriedade de sedimenta\u00e7\u00e3o do lodo depende da condi\u00e7\u00e3o de opera\u00e7\u00e3o do tanque de aera\u00e7\u00e3o, e a condi\u00e7\u00e3o de opera\u00e7\u00e3o do tanque de aera\u00e7\u00e3o deve ser rigorosamente controlada para melhorar a propriedade de sedimenta\u00e7\u00e3o do lodo, o que limita o escopo de aplica\u00e7\u00e3o do m\u00e9todo. Devido \u00e0 exig\u00eancia de separa\u00e7\u00e3o s\u00f3lido-l\u00edquido no tanque de sedimenta\u00e7\u00e3o secund\u00e1rio, o lodo no tanque de aera\u00e7\u00e3o n\u00e3o pode manter uma concentra\u00e7\u00e3o alta, geralmente em torno de 1,5 a 3,5 g\/L, limitando assim a taxa de rea\u00e7\u00e3o bioqu\u00edmica. O tempo de reten\u00e7\u00e3o hidr\u00e1ulica (HRT) e a idade do lodo (SRT) s\u00e3o interdependentes, e o aumento da carga volum\u00e9trica e a redu\u00e7\u00e3o da carga de lodo geralmente formam uma contradi\u00e7\u00e3o. O sistema tamb\u00e9m produz uma grande quantidade de lodo residual durante a opera\u00e7\u00e3o, e seu custo de descarte \u00e9 respons\u00e1vel por 25% a 40% do custo operacional da esta\u00e7\u00e3o de tratamento de \u00e1guas residuais. O sistema tradicional de tratamento de lodo ativado tamb\u00e9m \u00e9 propenso \u00e0 expans\u00e3o do lodo, o efluente cont\u00e9m s\u00f3lidos suspensos e a qualidade da \u00e1gua do efluente se deteriora.<\/p>\n<p>Em vista dos problemas acima, o MBR combina a tecnologia de separa\u00e7\u00e3o por membrana na engenharia de separa\u00e7\u00e3o com a tecnologia tradicional de tratamento biol\u00f3gico de \u00e1guas residuais, o que melhora muito a efici\u00eancia da separa\u00e7\u00e3o s\u00f3lido-l\u00edquido; e, devido ao aumento da concentra\u00e7\u00e3o de lodo ativado no tanque de aera\u00e7\u00e3o e ao surgimento de bact\u00e9rias eficazes (especialmente a flora dominante) no lodo, melhora a taxa de rea\u00e7\u00e3o bioqu\u00edmica; ao mesmo tempo, reduz a quantidade de lodo residual gerado ao diminuir a rela\u00e7\u00e3o F\/M (ou at\u00e9 mesmo 0), o que basicamente resolve os problemas existentes no m\u00e9todo tradicional de lodo ativado. Ao mesmo tempo, ao reduzir a rela\u00e7\u00e3o F\/M para reduzir a quantidade de produ\u00e7\u00e3o de lodo residual (at\u00e9 mesmo 0), basicamente resolve muitos problemas pendentes existentes no m\u00e9todo tradicional de lodo ativado.<\/p>\n<p><strong>Quais s\u00e3o os tipos de processos MBR?<\/strong><\/p>\n<p>De acordo com a combina\u00e7\u00e3o do m\u00f3dulo de membrana e do biorreator, o biorreator de membrana pode ser dividido em tr\u00eas tipos b\u00e1sicos: dividido, integrado e composto. (As discuss\u00f5es a seguir s\u00e3o todas sobre biorreatores de membrana do tipo separa\u00e7\u00e3o s\u00f3lido-l\u00edquido)<\/p>\n<p><strong>1. Tipo de separa\u00e7\u00e3o<\/strong><\/p>\n<p>O m\u00f3dulo de membrana e o biorreator s\u00e3o configurados separadamente.<\/p>\n<p>O l\u00edquido misturado no biorreator \u00e9 pressurizado pela bomba de circula\u00e7\u00e3o e, em seguida, bombeado para a extremidade de filtragem do m\u00f3dulo de membrana. Sob press\u00e3o, o l\u00edquido no l\u00edquido misto passa pela membrana e se torna a \u00e1gua tratada do sistema; os s\u00f3lidos e as macromol\u00e9culas s\u00e3o retidos pela membrana e, em seguida, retornam ao biorreator junto com o l\u00edquido concentrado.<\/p>\n<p><strong>2. Tipo integral<\/strong><\/p>\n<p>O m\u00f3dulo de membrana \u00e9 colocado dentro do biorreator. Entrada de \u00e1gua no biorreator de membrana, onde a maioria dos poluentes \u00e9 removida pelo lodo ativado na mistura e, em seguida, filtrada da \u00e1gua pela membrana sob press\u00e3o externa.<\/p>\n<p>Essa forma de biorreator de membrana, devido \u00e0 elimina\u00e7\u00e3o do sistema de circula\u00e7\u00e3o de l\u00edquido misto e pelo bombeamento de \u00e1gua, o consumo de energia \u00e9 relativamente baixo; ocupa um espa\u00e7o mais compacto do que o tipo dividido e, nos \u00faltimos anos, tem recebido aten\u00e7\u00e3o especial no campo do tratamento de \u00e1gua. No entanto, o fluxo geral da membrana \u00e9 relativamente baixo, a contamina\u00e7\u00e3o da membrana \u00e9 f\u00e1cil e n\u00e3o \u00e9 f\u00e1cil limp\u00e1-la e substitu\u00ed-la.<\/p>\n<p><strong>3. Comp\u00f3sito<\/strong><\/p>\n<p>A forma tamb\u00e9m pertence \u00e0 membrana de pe\u00e7a \u00fanica - biorreator, a diferen\u00e7a est\u00e1 no biorreator com embalagem, formando assim uma membrana composta - biorreator, alterando algumas das caracter\u00edsticas do reator.<\/p>\n<p>Quais s\u00e3o os processos combinados de MBR?<\/p>\n<p>Para obter uma melhor purifica\u00e7\u00e3o das \u00e1guas residuais, o processo A2O e o processo MBR s\u00e3o frequentemente combinados para formar um novo sistema.<\/p>\n<p><strong>1. processo A2O-MBR<\/strong><\/p>\n<p>As \u00e1guas residuais de coqueamento s\u00e3o produzidas no processo de coqueamento, destila\u00e7\u00e3o seca em alta temperatura, purifica\u00e7\u00e3o e recupera\u00e7\u00e3o de g\u00e1s, etc. Cont\u00e9m fen\u00f3is vol\u00e1teis, hidrocarbonetos arom\u00e1ticos polic\u00edclicos (PAHs), compostos heteroc\u00edclicos de oxig\u00eanio, enxofre e nitrog\u00eanio e outras caracter\u00edsticas, bem como um alto valor de COD, um alto valor de fenol e um alto teor de nitrog\u00eanio amoniacal.<\/p>\n<p>Embora o processo A2O seja um dos m\u00e9todos mais eficazes e amplamente utilizados para o tratamento de \u00e1guas residuais de coque. O surgimento do processo combinado A2O-MBR utiliza as vantagens do processo de membrana para melhorar ainda mais a qualidade do efluente.<\/p>\n<p><strong>2. processo A2OA-MBR<\/strong><\/p>\n<p>O processo A2O\/A-MBR \u00e9 comumente usado na desnitrifica\u00e7\u00e3o e na remo\u00e7\u00e3o de f\u00f3sforo. O processo se baseia no processo A2O e, em seguida, configura um n\u00edvel de tanque an\u00f3xico, as \u00e1guas residuais passam pela membrana de carbono para concluir a desnitrifica\u00e7\u00e3o biol\u00f3gica e a remo\u00e7\u00e3o de f\u00f3sforo e, em seguida, o uso do segundo tanque an\u00f3xico para a desnitrifica\u00e7\u00e3o end\u00f3gena, para remover ainda mais o TN e, em seguida, o uso de tanques de membrana para garantir a fun\u00e7\u00e3o de aera\u00e7\u00e3o aer\u00f3bica do efluente.<\/p>\n<p><strong>3. processo AO-MBR<\/strong><\/p>\n<p>No sistema AO-MBR, a \u00e1gua residual separada de s\u00f3lidos suspensos e detritos flui para o tanque de ajuste para equalizar a qualidade e a quantidade de \u00e1gua e, em seguida, entra no tanque de sedimenta\u00e7\u00e3o para separa\u00e7\u00e3o s\u00f3lido-l\u00edquido. O l\u00edquido claro do fluxo superior flui para o tanque de tratamento MBR, que \u00e9 projetado como um sistema AO: na se\u00e7\u00e3o frontal, a \u00e1gua do fluxo de entrada \u00e9 totalmente misturada para realizar a desnitrifica\u00e7\u00e3o biol\u00f3gica para remo\u00e7\u00e3o de nitrog\u00eanio e, na se\u00e7\u00e3o traseira, a degrada\u00e7\u00e3o biol\u00f3gica e a nitrifica\u00e7\u00e3o s\u00e3o realizadas, enquanto o \u00e1lcali \u00e9 adicionado e a \u00e1gua residual tratada \u00e9 descarregada diretamente.<\/p>\n<p><strong>4.3A-Processo MBR<\/strong><\/p>\n<p>O processo 3A-MBR \u00e9 uma tecnologia de biorreator de membrana e o processo tradicional anaer\u00f3bico, an\u00f3xico e aer\u00f3bico combinado com um novo processo, frequentemente usado na desnitrogena\u00e7\u00e3o e na desfosforiza\u00e7\u00e3o da purifica\u00e7\u00e3o de \u00e1guas residuais, destacando as caracter\u00edsticas do processo de desnitrifica\u00e7\u00e3o biol\u00f3gica de f\u00f3sforo e promovendo um ao outro, de modo que todo o sistema de desnitrifica\u00e7\u00e3o de f\u00f3sforo e a remo\u00e7\u00e3o de mat\u00e9ria org\u00e2nica na efici\u00eancia do efeito m\u00e1ximo.<\/p>\n<p><strong>Caracter\u00edsticas t\u00e9cnicas<\/strong><\/p>\n<p>Melhorar totalmente a alta concentra\u00e7\u00e3o de lodo ativado no pool de rea\u00e7\u00e3o da membrana, promover a forma\u00e7\u00e3o de comunidades de bact\u00e9rias nitrificantes dominantes, melhorar a efici\u00eancia da nitrifica\u00e7\u00e3o, de modo que a remo\u00e7\u00e3o de am\u00f4nia e nitrog\u00eanio seja completa; Por meio do controle autom\u00e1tico, otimize o tempo de descarga do lodo do biorreator de membrana, controle razoavelmente a idade do lodo, melhore a concentra\u00e7\u00e3o de bact\u00e9rias nitrificantes de crescimento lento, bact\u00e9rias desnitrificantes e outras bact\u00e9rias bioqu\u00edmicas especializadas no sistema, melhore o efeito da remo\u00e7\u00e3o de mat\u00e9ria org\u00e2nica e f\u00f3sforo e a desnitrifica\u00e7\u00e3o; para obter a descarga aer\u00f3bica do lodo, evite a libera\u00e7\u00e3o secund\u00e1ria de f\u00f3sforo. Melhorar a taxa de remo\u00e7\u00e3o de f\u00f3sforo.<\/p>\n<p><strong>Processo 5.A(2A)O-MBR<\/strong><\/p>\n<p>O processo A(2A)O-MBR adota o fluxo do processo na ordem de anaer\u00f3bico, o primeiro an\u00f3xico, o segundo an\u00f3xico, o aer\u00f3bico e o tanque de membrana. Caracterizado por duas zonas an\u00f3xicas no processo A2O-MBR, a fun\u00e7\u00e3o das duas zonas an\u00f3xicas \u00e9 regulada pelo controle dos pontos de entrada e retorno.<\/p>\n<p>O m\u00e9todo de entrada de \u00e1gua adota dois pontos de entrada de \u00e1gua na zona anaer\u00f3bica e na primeira zona an\u00f3xica. O m\u00e9todo de refluxo adota tr\u00eas est\u00e1gios de refluxo de dois pontos, o primeiro est\u00e1gio \u00e9 o l\u00edquido misto da piscina de membrana reflu\u00eddo para a frente da zona aer\u00f3bica; o segundo est\u00e1gio \u00e9 o l\u00edquido misto da zona aer\u00f3bica reflu\u00eddo para a primeira zona an\u00f3xica e a segunda zona an\u00f3xica; e o terceiro p\u00f3lo \u00e9 o l\u00edquido misto da primeira zona an\u00f3xica misturado \u00e0 zona anaer\u00f3bica.<\/p>\n<p><strong>6. processo SBR-MBR<\/strong><\/p>\n<p>O processo SBR-MBR \u00e9 uma combina\u00e7\u00e3o de SBR e MBR para formar um processo com as vantagens de ambos. O SBR \u00e9 um processo aprimorado de tratamento de lodo ativado, o uso de componentes de membrana de reten\u00e7\u00e3o e filtragem, a rea\u00e7\u00e3o dos microrganismos na rea\u00e7\u00e3o pode ser reproduzida ao m\u00e1ximo, propiciando o crescimento de bact\u00e9rias nitrificantes, a atividade biol\u00f3gica do lodo, a adsor\u00e7\u00e3o e a degrada\u00e7\u00e3o de subst\u00e2ncias org\u00e2nicas com alta capacidade.<\/p>\n<p>O processo SBR-MBR tem cinco sistemas de afluentes, anaer\u00f3bicos, aer\u00f3bicos e de sedimenta\u00e7\u00e3o. O SBR e o MBR trabalham para fornecer condi\u00e7\u00f5es para a desfosforiza\u00e7\u00e3o biol\u00f3gica e a remo\u00e7\u00e3o de nitrog\u00eanio, e tamb\u00e9m podem ser controlados de acordo com a necessidade de lidar com diferentes \u00e1guas residuais, o uso de separa\u00e7\u00e3o por membrana da \u00e1gua de drenagem, para melhorar a efici\u00eancia da purifica\u00e7\u00e3o de \u00e1guas residuais, al\u00e9m de economizar tempo.<\/p>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 667.52pt;\" border=\"0\" width=\"890\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 63.00pt;\">\n<td class=\"et3\" style=\"height: 63pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"84\"><strong>Fosfonatos Antiincrustantes, inibidores de corros\u00e3o e agentes quelantes<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/products\/atmp-cas-6419-19-8\/\">\u00c1cido amino trimetileno fosf\u00f4nico (ATMP)<\/a><\/span><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 6419-19-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/products\/hedp-cas-2809-21-4-2\/\">\u00c1cido 1-hidroxi etilideno-1,1-difosf\u00f4nico (HEDP)<\/a><\/span><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2809-21-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/edtmpa-solid-cas-1429-50-1\/\"><span style=\"color: #00ccff;\">Etileno diamina tetra (\u00e1cido metileno fosf\u00f4nico) EDTMPA (s\u00f3lido)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 1429-50-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/dtpmpa-cas-15827-60-8\/\"><span style=\"color: #00ccff;\">Dietileno Triamina Penta (\u00c1cido Metileno Fosf\u00f4nico) (DTPMPA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 15827-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/pbtc-cas-37971-36-1\/\"><span style=\"color: #00ccff;\">\u00c1cido 2-fosfonobutano -1,2,4-tricarbox\u00edlico (PBTC)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 37971-36-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hpaa-cas-23783-26-8\/\"><span style=\"color: #00ccff;\">\u00c1cido 2-hidroxi-fosfonoac\u00e9tico (HPAA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 23783-26-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hmdtmpa-cas-23605-74-5\/\"><span style=\"color: #00ccff;\">HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 23605-74-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">\u00c1cido poliamino poli\u00e9ter metileno fosf\u00f4nico (PAPEMP)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\"><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/bhmtpmp-cas-34690-00-1\/\"><span style=\"color: #00ccff;\">Bis(\u00c1cido hexa-metileno triamina penta (metileno fosf\u00f4nico)) BHMTPMP<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 34690-00-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hempa-cas-5995-42-6\/\"><span style=\"color: #00ccff;\">\u00c1cido hidroxietilamino-Di(metileno fosf\u00f4nico) (HEMPA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 5995-42-6<\/td>\n<\/tr>\n<tr style=\"height: 15.75pt;\">\n<td class=\"et3\" style=\"height: 15.75pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"21\"><strong>Sais de fosfonatos<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/atmp-na4-cas-20592-85-2\/\"><span style=\"color: #00ccff;\">Sal tetra-s\u00f3dico do \u00e1cido amino trimetileno fosf\u00f4nico (ATMP-Na4)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 20592-85-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/atmp-na5-cas-2235-43-0\/\"><span style=\"color: #00ccff;\">Sal pentass\u00f3dico do \u00e1cido amino trimetileno fosf\u00f4nico (ATMP-Na5)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2235-43-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hedp-na-cas-29329-71-3\/\"><span style=\"color: #00ccff;\">Monoss\u00f3dico de \u00e1cido 1-hidroxietilideno-1,1-difosf\u00f4nico (HEDP-Na)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 29329-71-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hedp-na2-cas-7414-83-7\/\"><span style=\"color: #00ccff;\">\u00a0(HEDP-Na2)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 7414-83-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal tetra-s\u00f3dico do \u00e1cido 1-hidroxietilideno-1,1-difosf\u00f4nico (HEDP-Na4)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 3794-83-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de pot\u00e1ssio do \u00e1cido 1-hidroxi etilideno-1,1-difosf\u00f4nico (HEDP-K2)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 21089-06-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal pentass\u00f3dico de etileno diamina tetra (\u00e1cido metileno fosf\u00f4nico) (EDTMP-Na5)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 7651-99-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal hepta-s\u00f3dico do \u00e1cido dietileno triamina penta (metileno fosf\u00f4nico) (DTPMP-Na7)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 68155-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do \u00e1cido dietileno triamina penta (metileno fosf\u00f4nico) (DTPMP-Na2)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 22042-96-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">\u00c1cido 2-fosfonobutano -1,2,4-tricarbox\u00edlico, sal de s\u00f3dio (PBTC-Na4)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 40372-66-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de pot\u00e1ssio do \u00e1cido hexa-metileno-diamina-tetra (metileno-fosf\u00f4nico) HMDTMPA-K6<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 53473-28-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio parcialmente neutralizado do \u00e1cido bishexametileno triamina penta (metileno fosf\u00f4nico) BHMTPH-PN(Na2)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 35657-77-3<\/td>\n<\/tr>\n<tr style=\"height: 31.50pt;\">\n<td class=\"et3\" style=\"height: 31.5pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"42\"><strong>Antiincrustante e dispersante policarbox\u00edlico<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">\u00c1cido poliacr\u00edlico (PAA) 50% 63%<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 9003-01-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio de \u00e1cido poliacr\u00edlico (PAAS) 45% 90%<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 9003-04-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hpma-cas-26099-09-2\/\"><span style=\"color: #00ccff;\">Anidrido polimaleico hidrolisado (HPMA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 26099-09-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Copol\u00edmero de \u00e1cido maleico e acr\u00edlico (MA\/AA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 26677-99-6<\/td>\n<\/tr>\n<tr style=\"height: 17.00pt;\">\n<td class=\"et5\" style=\"height: 17.00pt;\" height=\"22\">Copol\u00edmero de \u00e1cido acr\u00edlico-2-acrilamido-2-metilpropano sulf\u00f4nico (AA\/AMPS)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 40623-75-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">TH-164 \u00c1cido fosfino-carbox\u00edlico (PCA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 71050-62-9<\/td>\n<\/tr>\n<tr style=\"height: 31.50pt;\">\n<td class=\"et3\" style=\"height: 31.5pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"42\"><strong>Antiincrustante e dispersante biodegrad\u00e1vel<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 54.00pt;\" rowspan=\"2\" height=\"72\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/pesa-cas-51274-37-4109578-44-1\/\"><span style=\"color: #00ccff;\">S\u00f3dio do \u00e1cido poliepoxisucc\u00ednico (PESA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 51274-37-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 109578-44-1<\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 54.00pt;\" rowspan=\"2\" height=\"72\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/pasp-cas-181828-06-8-35608-40-6\/\"><span style=\"color: #00ccff;\">Sal de s\u00f3dio do \u00e1cido poliasp\u00e1rtico (PASP)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 181828-06-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 35608-40-6<\/td>\n<\/tr>\n<tr style=\"height: 27.00pt;\">\n<td class=\"et3\" style=\"height: 27pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"36\"><strong>Biocida e Algicida<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 67.50pt;\" rowspan=\"3\" height=\"90\">Cloreto de benzalc\u00f4nio (cloreto de dodecil dimetil benzil am\u00f4nio)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 8001-54-5,<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 63449-41-2,<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00ba CAS 139-07-1<\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 81.00pt;\" rowspan=\"2\" height=\"108\">Isotiazolinonas<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 26172-55-4,<\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2682-20-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sulfato de tetraquis(hidroximetil)fosf\u00f4nio (THPS)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 55566-30-8<\/td>\n<\/tr>\n<tr style=\"height: 17.00pt;\">\n<td class=\"et5\" style=\"height: 17.00pt;\" height=\"22\">GLUTARALDEHYDE<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 111-30-8<\/td>\n<\/tr>\n<tr style=\"height: 31.00pt;\">\n<td class=\"et3\" style=\"height: 31pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"41\"><strong>Inibidores de corros\u00e3o<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do toliltriazol (TTA-Na)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 64665-57-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Toliltriazol (TTA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 29385-43-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do 1,2,3-benzotriazol (BTA-Na)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 15217-42-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">1,2,3-Benzotriazol (BTA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 95-14-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do 2-Mercaptobenzotiazol (MBT-Na)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2492-26-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">2-Mercaptobenzotiazol (MBT)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 149-30-4<\/td>\n<\/tr>\n<tr style=\"height: 15.75pt;\">\n<td class=\"et3\" style=\"height: 15.75pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"21\"><strong>Absorvedor de oxig\u00eanio<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Ciclohexilamina<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 108-91-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Morfolina<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 110-91-8<\/td>\n<\/tr>\n<tr style=\"height: 15.75pt;\">\n<td class=\"et3\" style=\"height: 15.75pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"21\"><strong>Outros<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Diethylhexyl Sulfosuccinate de s\u00f3dio<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 1639-66-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Cloreto de acetila<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 75-36-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Agente quelante verde TH-GC (\u00e1cido glut\u00e2mico, \u00e1cido N,N-diacetico, sal tetra-s\u00f3dico)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 51981-21-6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><!-- lc-commercial-start --><\/p>\n<h2>How technical buyers and operators usually evaluate wastewater-treatment issues<\/h2>\n<p>Most wastewater-treatment problems are system problems. Teams usually get a better result when they define the process stage and water-quality target first, then review biological, chemical, and operational factors together before making a plant-scale correction.<\/p>\n<ul>\n<li><strong>Start from the process stage:<\/strong> pretreatment, biological treatment, sludge handling, and polishing steps can point to very different root causes.<\/li>\n<li><strong>Check the core water-quality data together:<\/strong> pH, COD, nitrogen, salinity, sludge condition, and dissolved oxygen often need to be read as one picture.<\/li>\n<li><strong>Review compliance and operability at the same time:<\/strong> the quickest local fix can still be the wrong commercial move if it destabilizes another part of the plant.<\/li>\n<li><strong>Use pilot or staged validation where possible:<\/strong> wastewater systems often respond differently at scale than they do in simplified bench assumptions.<\/li>\n<\/ul>\n<h3>Refer\u00eancias de produtos recomendadas<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions matter.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cat-261-cas-32760-80-8\/\">CHLUMINIT 261<\/a>:<\/strong> A direct cationic-photoinitiator reference when cationic curing routes are being screened.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/hpma-monomer-cas-27813-02-1\/\">CHLUMICRYL HPMA<\/a>:<\/strong> \u00datil quando mais polaridade e suporte de ades\u00e3o s\u00e3o necess\u00e1rios no pacote reativo.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/hema-monomer-cas-868-77-9\/\">CHLUMICRYL HEMA<\/a>:<\/strong> A well-known polar monomer reference in adhesion- and reactivity-driven systems.<\/li>\n<\/ul>\n<h3>FAQ para compradores e formuladores<\/h3>\n<p><strong>Why do many wastewater problems resist one-step fixes?<\/strong><br \/>Because the visible symptom is often created by several interacting process variables rather than one isolated cause.<\/p>\n<p><strong>Should operational changes be evaluated only by one output indicator?<\/strong><br \/>Usually no. A stable treatment decision should consider process balance, compliance, sludge behavior, and the effect on downstream steps as well.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>What is MBR process? Membrane Bioreactor ( Membrance Bioreactor Reactor, referred to as MBR) is a new process of biological treatment of wastewater by the combination of membrane separation and<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[168],"tags":[],"class_list":["post-7063","post","type-post","status-publish","format-standard","hentry","category-water-treatment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are MBR membranes and their combined processes? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"What is MBR process? 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