{"id":13654,"date":"2024-07-22T15:05:55","date_gmt":"2024-07-22T07:05:55","guid":{"rendered":"https:\/\/www.humicchina.com\/?p=13654"},"modified":"2025-06-26T12:07:07","modified_gmt":"2025-06-26T04:07:07","slug":"humic-acids-used-for-industrial-wastewater-treatment-application","status":"publish","type":"post","link":"https:\/\/www.humicchina.com\/pt\/blog\/humic-acids-used-for-industrial-wastewater-treatment-application.html","title":{"rendered":"\u00c1cidos H\u00famicos Usados para Aplica\u00e7\u00e3o no Tratamento de Efluentes Industriais"},"content":{"rendered":"\r\n
\r\n

Tratamento de \u00e1guas residuais industriais Produto: Sal de s\u00f3dio sol\u00favel em \u00e1gua de \u00e1cidos h\u00famicos<\/a><\/p>\r\n\r\n\r\n\r\n

Os sais de \u00e1cidos h\u00famicos para tratamento de \u00e1gua s\u00e3o usados \u200b\u200bcomo aprox. Solu\u00e7\u00e3o aquosa a 10% com teor de s\u00f3dio de aprox. 1%.<\/p>\r\n\r\n\r\n\r\n

A solu\u00e7\u00e3o tem um valor de pH de 9 a 10. A ligeira turva\u00e7\u00e3o ou possivelmente pequeno sedimento \u00e9 causada por componentes naturais da argila. Os sais de \u00e1cidos h\u00famicos s\u00e3o produzidos a partir de um produto de oxida\u00e7\u00e3o da lenhite atrav\u00e9s de um processo de extra\u00e7\u00e3o especial. O produto consiste em \u00e1cidos h\u00famicos de alto peso molecular, que podem ser quantitativamente precipitados ou coagulados por neutraliza\u00e7\u00e3o e preferencialmente c\u00e1tions multivalentes. Os \u00e1cidos h\u00famicos para tratamento de \u00e1gua n\u00e3o devem ser confundidos com subst\u00e2ncias h\u00famicas e seus complexos met\u00e1licos, que s\u00e3o ocasionalmente conhecidos em opera\u00e7\u00f5es de abastecimento de \u00e1gua como contaminantes particularmente perturbadores das \u00e1guas subterr\u00e2neas. Estas s\u00e3o subst\u00e2ncias h\u00famicas de baixo peso molecular ou precursores de subst\u00e2ncias h\u00famicas.<\/p>\r\n\r\n\r\n

\r\n
\"Humic-Acids-Used-for-Industrial-Wastewater-Treatment-Application\"<\/figure><\/div>\r\n\r\n\r\n

Propriedades: Os \u00e1cidos h\u00famicos coagulados apresentam as seguintes caracter\u00edsticas dominantes:<\/p>\r\n\r\n\r\n\r\n

    \r\n
  1. Adsor\u00e7\u00e3o de subst\u00e2ncias lipof\u00edlicas<\/li>\r\n\r\n\r\n\r\n
  2. Forma\u00e7\u00e3o de complexo doador\/aceitador de el\u00e9trons<\/li>\r\n\r\n\r\n\r\n
  3. Forma\u00e7\u00e3o de sal com bases<\/li>\r\n\r\n\r\n\r\n
  4. Forma\u00e7\u00e3o de complexos pouco sol\u00faveis com c\u00e1tions polivalentes e metais pesados<\/li>\r\n\r\n\r\n\r\n
  5. Forma\u00e7\u00e3o de sal com \u00e1cidos e<\/li>\r\n\r\n\r\n\r\n
  6. Capacidade de troca de el\u00e9trons<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

    Devido a estas caracter\u00edsticas, os sais especiais de \u00e1cidos h\u00famicos s\u00e3o adequados como sorventes para uma variedade de contaminantes da \u00e1gua, particularmente para os grupos de subst\u00e2ncias<\/p>\r\n\r\n\r\n\r\n

      \r\n
    1. Metais pesados<\/li>\r\n\r\n\r\n\r\n
    2. Subst\u00e2ncias lipof\u00edlicas.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

      Uma propriedade particularmente valiosa dos sais de \u00e1cidos h\u00famicos para tratamento de \u00e1guas residuais industriais \u00e9 a sua capacidade de coagula\u00e7\u00e3o na faixa de pH neutro a \u00e1cido da \u00e1gua, o que faz com que ela precipite em flocos grossos, especialmente na presen\u00e7a de c\u00e1tions polivalentes como c\u00e1lcio, alum\u00ednio ou ferro.<\/p>\r\n\r\n\r\n\r\n

      Espectro de a\u00e7\u00e3o: Pelas caracter\u00edsticas mencionadas, esta forma especial de sais de \u00e1cidos h\u00famicos \u00e9 utilizada para purifica\u00e7\u00e3o de \u00e1gua. Eles s\u00e3o ideais para remover metais pesados \u200b\u200bdeste meio, especialmente em n\u00edveis vestigiais, como:<\/p>\r\n\r\n\r\n\r\n

        \r\n
      1. Cromatos<\/li>\r\n\r\n\r\n\r\n
      2. Compostos de n\u00edquel<\/li>\r\n\r\n\r\n\r\n
      3. Compostos de cobre<\/li>\r\n\r\n\r\n\r\n
      4. Compostos de merc\u00fario<\/li>\r\n\r\n\r\n\r\n
      5. Compostos de c\u00e1dmio<\/li>\r\n\r\n\r\n\r\n
      6. Compostos de chumbo<\/li>\r\n\r\n\r\n\r\n
      7. Compostos de zinco<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

        Al\u00e9m disso, os sais de \u00e1cido h\u00famico coagulados s\u00e3o capazes de ligar componentes org\u00e2nicos lipof\u00edlicos por sor\u00e7\u00e3o devido \u00e0 sua elevada superf\u00edcie interna. Devido \u00e0s propriedades coagulantes dos sais de \u00e1cidos h\u00famicos precipitados, eles tamb\u00e9m podem ser usados \u200b\u200bcomo floculantes ou pr\u00e9-revestimentos para filtra\u00e7\u00e3o de cascalho. Devido a essas propriedades, os sais de \u00e1cidos h\u00famicos podem ser usados \u200b\u200bde diversas maneiras para purificar \u00e1guas residuais e \u00e1guas de minas.<\/p>\r\n\r\n\r\n\r\n

        Aplicativo:<\/p>\r\n\r\n\r\n\r\n

        A solu\u00e7\u00e3o salina de \u00e1cido h\u00famico \u00e9 misturada com as \u00e1guas residuais a serem tratadas atrav\u00e9s de sistemas de dosagem, como tamb\u00e9m \u00e9 comum na dosagem de floculantes convencionais. Ao neutralizar o efluente, com adi\u00e7\u00e3o simult\u00e2nea de c\u00e1tions multivalentes, preferencialmente cloreto de c\u00e1lcio, sais de alum\u00ednio ou ferro, ele \u00e9 coagulado em valores de pH inferiores a 7,5. Isto cria flocos t\u00edpicos de \u00e1cido h\u00famico que n\u00e3o s\u00f3 s\u00e3o capazes de ligar a carga de solu\u00e7\u00e3o acima mencionada por sor\u00e7\u00e3o, mas tamb\u00e9m coagular a carga de mat\u00e9ria suspensa da maneira convencional e, assim, provocar a clarifica\u00e7\u00e3o da \u00e1gua. Os sais de \u00e1cidos h\u00famicos s\u00e3o particularmente vantajosos em combina\u00e7\u00e3o com floculantes convencionais. Estes geralmente hidrolisam em \u00e1cidos, que s\u00e3o neutralizados pela solu\u00e7\u00e3o salina de \u00e1cido h\u00famico adicionada. Isto cria uma flocula\u00e7\u00e3o combinada muito est\u00e1vel que pode ser efetivamente sedimentada ou filtrada.<\/p>\r\n\r\n\r\n\r\n

        Vantagens especiais no tratamento de \u00e1guas residuais industriais:<\/p>\r\n\r\n\r\n\r\n

          \r\n
        1. Separa\u00e7\u00e3o de metais pesados \u200b\u200bdissolvidos<\/li>\r\n\r\n\r\n\r\n
        2. Separa\u00e7\u00e3o de subst\u00e2ncias lipof\u00edlicas dissolvidas<\/li>\r\n\r\n\r\n\r\n
        3. Floculante eficaz para gorduras, \u00f3leos e mat\u00e9rias suspensas de todos os tipos<\/li>\r\n\r\n\r\n\r\n
        4. Melhoria da efic\u00e1cia dos floculantes convencionais ao mesmo tempo que atua como agente neutralizante alcalino<\/li>\r\n\r\n\r\n\r\n
        5. Melhoria das propriedades do lodo de esgoto atrav\u00e9s da imobiliza\u00e7\u00e3o de metais pesados \u200b\u200be lip\u00f3filos<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n
          \"Special<\/figure>\r\n\r\n\r\n\r\n

          Deste modo:<\/p>\r\n\r\n\r\n\r\n

            \r\n
          1. Melhoria do lodo de esgoto para uso na agricultura, criando uma estrutura natural de poros do solo<\/li>\r\n\r\n\r\n\r\n
          2. Os \u00e1cidos h\u00famicos s\u00e3o uma subst\u00e2ncia natural essencial para muitos ecossistemas<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

            Exemplo:<\/p>\r\n\r\n\r\n\r\n

            Depura\u00e7\u00e3o de gases de combust\u00e3o de uma instala\u00e7\u00e3o de incinera\u00e7\u00e3o de res\u00edduos: A parte da \u00e1gua que \u00e9 constantemente desviada do ciclo de gases de combust\u00e3o e descarregada como \u00e1guas residuais deve ser tratada antes da descarga. A \u00e1gua, que geralmente cont\u00e9m alto teor de metais pesados, costuma ser altamente \u00e1cida e, portanto, deve ser neutralizada. Os processos convencionais para separa\u00e7\u00e3o de metais pesados \u200b\u200bbaseiam-se no tratamento com \u00e1lcali para precipitar os metais pesados \u200b\u200bcomo hidr\u00f3xidos na faixa de pH alcalino. Este processo de precipita\u00e7\u00e3o n\u00e3o \u00e9 suficiente para alguns metais pesados, especialmente o merc\u00fario.<\/p>\r\n\r\n\r\n

            \r\n
            \"Flue<\/figure><\/div>\r\n\r\n\r\n

            Outra desvantagem \u00e9 o valor alcalino do pH das \u00e1guas residuais, que deve ser corrigido numa nova fase de neutraliza\u00e7\u00e3o. Ao adicionar solu\u00e7\u00e3o salina de \u00e1cido h\u00famico \u00e0s \u00e1guas residuais provenientes da depura\u00e7\u00e3o de gases de combust\u00e3o como agente co-neutralizante (se necess\u00e1rio em combina\u00e7\u00e3o com cal e floculantes convencionais, bem como sais de ferro e possivelmente polieletr\u00f3lito org\u00e2nico). em compara\u00e7\u00e3o com o processo de precipita\u00e7\u00e3o alcalina convencional, o teor de metais pesados \u200b\u200bna faixa de pH neutro a ligeiramente \u00e1cido pode ser separado quantitativamente por \u00e1cido h\u00famico. Com a vantagem adicional de minimizar a saliniza\u00e7\u00e3o do tratamento de \u00e1guas residuais industriais.<\/p>\r\n\r\n\r\n\r\n

            Elimina\u00e7\u00e3o Devido \u00e0 forte liga\u00e7\u00e3o dos metais pesados \u200b\u200bnos \u00e1cidos h\u00famicos, n\u00e3o \u00e9 de esperar uma liberta\u00e7\u00e3o destes componentes do lodo de esgoto, mesmo sob condi\u00e7\u00f5es que normalmente podem levar \u00e0 mobilidade destes elementos. por exemplo atrav\u00e9s da chamada precipita\u00e7\u00e3o \u00e1cida, que pode levar, em particular, \u00e0 mobilidade de metais pesados \u200b\u200bdo hidr\u00f3xido precipitado.<\/p>\r\n\r\n\r\n\r\n

            As rotas de elimina\u00e7\u00e3o que anteriormente eram problem\u00e1ticas, como a utiliza\u00e7\u00e3o agr\u00edcola para melhoria do solo, podem assim ser seguidas com maior seguran\u00e7a. Os poluentes lipof\u00edlicos presentes nas lamas de esgoto, e. polic\u00edclicos arom\u00e1ticos, bifenilos policlorados, dioxinas e furanos, s\u00e3o imobilizados por \u00e1cidos h\u00famicos. \u00c9 precisamente por esta raz\u00e3o que a utiliza\u00e7\u00e3o de \u00e1cidos h\u00famicos no tratamento de \u00e1guas residuais industriais ou no tratamento de lamas \u00e9 vantajosa.<\/p>\r\n\r\n\r\n\r\n

            O lodo de esgoto contendo \u00e1cidos h\u00famicos \u00e9, portanto, muito mais adequado para uso agr\u00edcola do que o lodo de esgoto convencional compar\u00e1vel, porque os \u00e1cidos h\u00famicos coagulados conferem ao lodo seco e, portanto, tamb\u00e9m ao solo tratado com lodo, uma consist\u00eancia fri\u00e1vel, terroso-h\u00famica, que pode melhorar a fun\u00e7\u00e3o do solo como substrato vegetal de v\u00e1rias maneiras (aera\u00e7\u00e3o, reten\u00e7\u00e3o de umidade, resist\u00eancia ao transporte pelo vento, reten\u00e7\u00e3o de fertilizantes, redu\u00e7\u00e3o da permeabilidade do solo ao nitrato, am\u00f4nio e biocidas).<\/p>\r\n\r\n\r\n\r\n

            Caso contr\u00e1rio, o lodo contendo \u00e1cido h\u00famico pode ser utilizado ap\u00f3s a secagem como fonte de energia em processos t\u00e9rmicos, tais como:<\/p>\r\n\r\n\r\n\r\n

              \r\n
            1. incinera\u00e7\u00e3o de res\u00edduos<\/li>\r\n\r\n\r\n\r\n
            2. gaseifica\u00e7\u00e3o de res\u00edduos<\/li>\r\n\r\n\r\n\r\n
            3. pir\u00f3lise de res\u00edduos<\/li>\r\n\r\n\r\n\r\n
            4. combust\u00edvel adicional em outras instala\u00e7\u00f5es de incinera\u00e7\u00e3o<\/li>\r\n\r\n\r\n\r\n
            5. produ\u00e7\u00e3o de cimento<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

              Onde o teor de metais pesados \u200b\u200b\u00e9 preferencialmente fixado de forma ecologicamente correta na fus\u00e3o de esc\u00f3ria ou no cl\u00ednquer de cimento, ambos tamb\u00e9m mat\u00e9rias-primas para a ind\u00fastria da constru\u00e7\u00e3o, em ligante de silicato.<\/p>\r\n\r\n\r\n\r\n

              Informa\u00e7\u00f5es sobre produtos de tratamento de \u00e1guas residuais industriais:<\/p>\r\n\r\n\r\n\r\n

                \r\n
              1. Caracter\u00edsticas dos sais de \u00e1cidos h\u00famicos\r\n
                  \r\n
                • Apar\u00eancia: p\u00f3 ou flocos sol\u00faveis em \u00e1gua preto-marrom<\/strong><\/li>\r\n\r\n\r\n\r\n
                • Odor: inodoro<\/strong><\/li>\r\n\r\n\r\n\r\n
                • Subst\u00e2ncia ativa: \u00e1cidos h\u00famicos na forma de sal de s\u00f3dio<\/strong><\/li>\r\n\r\n\r\n\r\n
                • N\u00ba CAS: 68131-04-4<\/strong><\/li>\r\n\r\n\r\n\r\n
                • Valor de pH: 9-10<\/strong><\/li>\r\n<\/ul>\r\n<\/li>\r\n\r\n\r\n\r\n
                • Toxicologia e ecologia Ap\u00f3s a mistura e neutraliza\u00e7\u00e3o com as \u00e1guas residuais a serem limpas, s\u00e3o eliminados os poss\u00edveis efeitos ecol\u00f3gicos ou t\u00f3xicos negativos resultantes unicamente da alcalinidade da solu\u00e7\u00e3o de \u00e1cido h\u00famico utilizada. Como os \u00e1cidos h\u00famicos s\u00e3o uma subst\u00e2ncia natural completamente inofensiva, eles pr\u00f3prios n\u00e3o t\u00eam quaisquer efeitos negativos.<\/li>\r\n\r\n\r\n\r\n
                • Armazenamento e manuseio A estabilidade de armazenamento dos sais de \u00e1cidos h\u00famicos \u00e9 quase ilimitada se os recipientes n\u00e3o forem expostos a flutua\u00e7\u00f5es extremas, como calor ou geada, e forem armazenados secos. Os contaminantes da pele podem ser removidos com \u00e1gua e sab\u00e3o. Se entrar em contato com os olhos, lave imediatamente com \u00e1gua limpa em abund\u00e2ncia.<\/li>\r\n\r\n\r\n\r\n
                • Regulamentos de transporte N\u00e3o \u00e9 um produto perigoso de acordo com os regulamentos de transporte nacionais e internacionais aplic\u00e1veis.<\/li>\r\n<\/ol>\r\n<\/div><\/div>\r\n\r\n\r\n\r\n

                   <\/p>\r\n","protected":false},"excerpt":{"rendered":"

                  Industrial wastewater treatment Product:Water-soluble sodium salt of humic acids
                  \nHumic acid salts for water treatment are used as an approx. 10% aqueous solution with a sodium content of approx. 1%.<\/p>\n","protected":false},"author":1,"featured_media":13695,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Humic Acids Used for Industrial Wastewater Treatment %%page%% %%sep%% JINGFENG","_yoast_wpseo_metadesc":"The strong chelation of industrial wastewater treatment humic acids can be an effective and environmentally-friendly 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