{"id":5482,"date":"2026-10-27T12:41:17","date_gmt":"2026-10-27T12:41:17","guid":{"rendered":"https:\/\/pmnbtech.com\/sulfuro-de-hidrogeno-h%e2%82%82s-en-aguas-residuales-causas-riesgos-por-malos-olores-y-control-sin-productos-quimicos\/"},"modified":"2026-11-03T08:21:59","modified_gmt":"2026-11-03T08:21:59","slug":"sulfuro-de-hidrogeno-h2s-aguas-residuales","status":"publish","type":"post","link":"https:\/\/pmnbtech.com\/es\/sulfuro-de-hidrogeno-h2s-aguas-residuales\/","title":{"rendered":"Sulfuro de hidr\u00f3geno (H\u2082S) en aguas residuales: causas, riesgos por malos olores y control sin productos qu\u00edmicos"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">El sulfuro de hidr\u00f3geno (H\u2082S) en aguas residuales es un gas t\u00f3xico asociado con olores intensos, riesgos para la seguridad de los trabajadores y corrosi\u00f3n de la infraestructura. Se forma cuando se agota el ox\u00edgeno y las bacterias reductoras de sulfato comienzan a convertir los sulfatos presentes en las aguas residuales en sulfuros.<\/p>\n\n<p class=\"wp-block-paragraph\">Para los operadores, la primera se\u00f1al de alerta suele ser el caracter\u00edstico olor a huevo podrido cerca de las estaciones de bombeo, los pozos de bombeo o las \u00e1reas de tratamiento. Sin embargo, el olor es solo una parte del problema. El H\u2082S puede volverse peligroso a concentraciones elevadas y, una vez liberado a la atm\u00f3sfera del sistema de alcantarillado, puede contribuir a una corrosi\u00f3n severa del hormig\u00f3n.<\/p>\n\n<p class=\"wp-block-paragraph\">Este art\u00edculo explica qu\u00e9 causa la formaci\u00f3n de sulfuro de hidr\u00f3geno en las aguas residuales y d\u00f3nde suele generarse. Tambi\u00e9n analizamos su importancia en el tratamiento de aguas residuales, as\u00ed como las principales opciones para controlarlo antes de que se convierta en un problema operativo.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>\u00bfQu\u00e9 es el sulfuro de hidr\u00f3geno en las aguas residuales?<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">El sulfuro de hidr\u00f3geno en las aguas residuales est\u00e1 relacionado con los sulfuros disueltos que, bajo determinadas condiciones, pueden liberarse en forma de gas H\u2082S.<br\/>Las aguas residuales son aguas utilizadas en hogares e industrias, incluidas las provenientes de inodoros, cocinas y procesos industriales. Adem\u00e1s de f\u00f3sforo y nitr\u00f3geno, pueden contener compuestos de azufre provenientes de desechos humanos y otros materiales org\u00e1nicos.<\/p>\n\n<p class=\"wp-block-paragraph\">A medida que se agota el ox\u00edgeno, los sulfuros pueden acumularse en el agua y liberarse al aire en forma de gas H\u2082S. El sulfuro de hidr\u00f3geno, tambi\u00e9n conocido como \u00e1cido sulfh\u00eddrico, es el responsable del caracter\u00edstico olor a huevo podrido.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>\u00bfQu\u00e9 causa la formaci\u00f3n de H\u2082S en las aguas residuales?<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">El H\u2082S se forma cuando las aguas residuales entran en condiciones anaer\u00f3bicas y las bacterias reductoras de sulfato convierten los sulfatos en sulfuros.<br\/>Esto ocurre principalmente cuando las aguas residuales permanecen estancadas o circulan lentamente durante per\u00edodos prolongados, lo que provoca el agotamiento del ox\u00edgeno disuelto.<br\/>Las \u00e1reas donde suelen presentarse estos problemas incluyen tuber\u00edas de impulsi\u00f3n largas, pozos de bombeo, colectores de alcantarillado con flujo lento y tanques de lodos.<\/p>\n\n<p class=\"wp-block-paragraph\">La formaci\u00f3n de H\u2082S puede acelerarse durante per\u00edodos de temperaturas elevadas y cuando aumentan los tiempos de retenci\u00f3n. Tambi\u00e9n es m\u00e1s probable cuando las aguas residuales contienen altas concentraciones de materia org\u00e1nica, como sucede en determinados efluentes industriales.<\/p>\n\n<p class=\"wp-block-paragraph\">Las principales condiciones que aumentan el riesgo de formaci\u00f3n de H\u2082S son:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Niveles bajos o agotamiento del ox\u00edgeno disuelto.<\/li>\n\n\n\n<li>Tiempos de retenci\u00f3n prolongados.<\/li>\n\n\n\n<li>Temperaturas elevadas de las aguas residuales.<\/li>\n\n\n\n<li>Alta carga de materia org\u00e1nica.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\"><strong>\u00bfPor qu\u00e9 el H\u2082S representa un problema? Riesgos de olores, salud y corrosi\u00f3n<\/strong><\/h2>\n\n<h3 class=\"wp-block-heading\">Problemas de malos olores<\/h3>\n\n<p class=\"wp-block-paragraph\">El H\u2082S tiene un olor caracter\u00edstico a huevo podrido y puede detectarse incluso a concentraciones muy bajas.<\/p>\n\n<h3 class=\"wp-block-heading\">En las redes de saneamiento y las plantas de tratamiento, incluso peque\u00f1as liberaciones pueden generar olores persistentes provenientes del alcantarillado alrededor de estaciones de bombeo, pozos de bombeo y propiedades cercanas.<\/h3>\n\n<p class=\"wp-block-paragraph\">Riesgos para la salud humana<\/p>\n\n<h3 class=\"wp-block-heading\">El gas H\u2082S es t\u00f3xico y el olor nunca debe considerarse un sistema de advertencia fiable.<br\/>A concentraciones elevadas, la exposici\u00f3n puede afectar el sentido del olfato, lo que significa que los trabajadores pueden dejar de percibir el gas incluso cuando sus concentraciones contin\u00faan aumentando.<br\/>Los valores l\u00edmite de exposici\u00f3n profesional indicativos establecidos por la Uni\u00f3n Europea son de 5 ppm durante ocho horas y 10 ppm durante 15 minutos.<br\/>Corrosi\u00f3n por \u00e1cido sulf\u00farico<\/h3>\n\n<p class=\"wp-block-paragraph\">El H\u2082S tambi\u00e9n contribuye al deterioro grave de la infraestructura.<\/p>\n\n<h2 class=\"wp-block-heading\">Una vez que ingresa a la atm\u00f3sfera del sistema de alcantarillado, los microorganismos presentes en superficies h\u00famedas pueden oxidarlo y convertirlo en \u00e1cido sulf\u00farico.<\/h2>\n\n<p class=\"wp-block-paragraph\">Con el tiempo, este \u00e1cido puede atacar el hormig\u00f3n y provocar corrosi\u00f3n en las partes superiores de las tuber\u00edas, los pozos de inspecci\u00f3n y otras estructuras expuestas.<br\/>\u00bfCu\u00e1les son las opciones de tratamiento para controlar el H\u2082S en aguas residuales?<br\/>El tratamiento del H\u2082S puede abordar el problema en diferentes etapas: desde prevenir la formaci\u00f3n de sulfuros en las aguas residuales hasta eliminar el H\u2082S despu\u00e9s de que se libera al aire.<br\/>La soluci\u00f3n m\u00e1s adecuada depende del lugar donde se origina el problema y de si la prioridad es la prevenci\u00f3n, la eliminaci\u00f3n de sulfuros o el tratamiento de olores.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Opci\u00f3n de tratamiento<\/strong><\/td><td><strong>C\u00f3mo funciona<\/strong><\/td><td><strong>D\u00f3nde act\u00faa<\/strong><\/td><td><strong>Principal consideraci\u00f3n<\/strong><\/td><\/tr><tr><td>Dosificaci\u00f3n de productos qu\u00edmicos<\/td><td>Las sales de hierro se unen a los sulfuros disueltos, mientras que los nitratos y otros productos qu\u00edmicos pueden inhibir o modificar su formaci\u00f3n.<\/td><td>En las aguas residuales.<\/td><td>Requiere manipulaci\u00f3n, dosificaci\u00f3n y control continuo de productos qu\u00edmicos.<\/td><\/tr><tr><td>Extracci\u00f3n y tratamiento del aire<\/td><td>Captura el gas H\u2082S y trata el aire extra\u00eddo mediante lavadores de gases o biofiltros.<\/td><td>Despu\u00e9s de que el H\u2082S pasa a la fase gaseosa.<\/td><td>Controla las emisiones, pero no las condiciones anaer\u00f3bicas que originan el problema.<\/td><\/tr><tr><td>Oxigenaci\u00f3n o aireaci\u00f3n<\/td><td>Aumenta el ox\u00edgeno disuelto, lo que ayuda a inhibir la reducci\u00f3n de sulfatos y a oxidar los sulfuros disueltos.<\/td><td>En las aguas residuales, antes de la liberaci\u00f3n del gas.<\/td><td>Su eficacia depende de mantener suficiente ox\u00edgeno en las zonas donde tiende a formarse el H\u2082S.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">En la pr\u00e1ctica, cada tratamiento elimina, transforma o previene la formaci\u00f3n de H\u2082S en una etapa diferente del proceso.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>\u00bfC\u00f3mo se puede controlar el H\u2082S sin productos qu\u00edmicos?<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">El control del H\u2082S sin productos qu\u00edmicos se centra en mantener condiciones aer\u00f3bicas en las zonas donde, de otro modo, se formar\u00edan sulfuros. El aumento del ox\u00edgeno disuelto inhibe la actividad de las bacterias reductoras de sulfato y tambi\u00e9n puede favorecer la oxidaci\u00f3n de los sulfuros disueltos antes de que se acumulen y se liberen en forma de gas H\u2082S.<\/p>\n\n<p class=\"wp-block-paragraph\">La oxigenaci\u00f3n mediante nanoburbujas es una forma de lograrlo. Debido a que las nanoburbujas permanecen suspendidas en el agua durante m\u00e1s tiempo que las burbujas convencionales, pueden mejorar la transferencia de gas y ayudar a mantener el ox\u00edgeno disuelto en pozos de bombeo, tanques, sistemas de tratamiento de lodos y otras \u00e1reas de alto riesgo.<\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pmnbtech.com\/es\/sobre-nosotros\/\">PMnB Technologies<\/a>, una empresa europea especializada en el tratamiento de agua mediante nanoburbujas, respaldada por la trayectoria de ingenier\u00eda de Palgey Maim, utiliza la oxigenaci\u00f3n con nanoburbujas para ayudar a mantener condiciones aer\u00f3bicas y mejorar la oxidaci\u00f3n de sulfuros en las zonas donde normalmente se forma H\u2082S. Esto proporciona un enfoque sin productos qu\u00edmicos para controlar los olores y los sulfuros directamente en su origen.<\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pmnbtech.com\/es\/contacto\/\"><strong>Hable con un ingeniero sobre el control del H\u2082S.<\/strong><\/a><\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Preguntas frecuentes<\/strong><\/h2>\n<div class=\"alignwide wp-block-faa-faq-and-answers\" id='bBlocksTestPurpose-1'\r\n\tdata-attributes='{&quot;activeItem&quot;:5,&quot;theme&quot;:&quot;themeThirteen&quot;,&quot;faqData&quot;:[{&quot;categories&quot;:&quot;General&quot;,&quot;question&quot;:&quot;What causes hydrogen sulphide in wastewater?&quot;,&quot;answer&quot;:&quot;Sulfur reducing bacteria convert sulphate into hydrogen sulphide when wastewater runs out of oxygen. It is most common in rising mains, pumping station wet wells, slow sewers and sludge tanks, especially in warm weather.&quot;,&quot;image&quot;:&quot;https:\\\/\\\/images.unsplash.com\\\/photo-1507525428034-b723cf961d3e&quot;},{&quot;categories&quot;:&quot;General&quot;,&quot;question&quot;:&quot;Is H2S gas in wastewater dangerous?&quot;,&quot;answer&quot;:&quot;Yes. H2S is toxic and at higher levels can dull the sense of smell, so odour is not a reliable warning. The EU indicative exposure limit is 5 ppm over 8 hours and 10 ppm over 15 minutes.&quot;,&quot;image&quot;:&quot;https:\\\/\\\/images.unsplash.com\\\/photo-1507525428034-b723cf961d3e&quot;},{&quot;categories&quot;:&quot;General&quot;,&quot;question&quot;:&quot;Why does hydrogen sulphide corrode sewers?&quot;,&quot;answer&quot;:&quot;Bacteria on damp concrete and metal surfaces convert H2S gas into sulfuric acid, which gradually eats away pipe crowns, manholes, pumps and structures at treatment plants.&quot;,&quot;image&quot;:&quot;https:\\\/\\\/images.unsplash.com\\\/photo-1507525428034-b723cf961d3e&quot;},{&quot;categories&quot;:&quot;General&quot;,&quot;question&quot;:&quot;What are the main treatment options for H2S in wastewater?&quot;,&quot;answer&quot;:&quot;Chemical dosing (such as iron salts or nitrate), air extraction with scrubbers or biofilters, and oxygenation. Dosing and scrubbing deal with H2S after it forms; oxygenation prevents it forming.&quot;,&quot;image&quot;:&quot;https:\\\/\\\/images.unsplash.com\\\/photo-1507525428034-b723cf961d3e&quot;},{&quot;categories&quot;:&quot;General&quot;,&quot;question&quot;:&quot;How can hydrogen sulphide be controlled without chemicals?&quot;,&quot;answer&quot;:&quot;By keeping wastewater aerobic so sulphide never forms. PMnB Technologies uses chemical-free nanobubble oxygenation to raise dissolved oxygen in wet wells, tanks and sludge systems, preventing H2S and odour at 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\\\/&gt;&lt;\\\/svg&gt;&quot;},&quot;column&quot;:{&quot;desktop&quot;:1,&quot;tablet&quot;:1,&quot;mobile&quot;:1,&quot;gapX&quot;:&quot;5px&quot;,&quot;gapY&quot;:&quot;14px&quot;},&quot;faqTitle&quot;:&quot;&quot;,&quot;faqId&quot;:0}'\r\n\tdata-faq-title='Sulfuro de hidr\u00f3geno (H\u2082S) en aguas residuales: causas, riesgos por malos olores y control sin productos qu\u00edmicos'\r\n\tdata-faq-id='0'>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>El sulfuro de hidr\u00f3geno (H\u2082S) en aguas residuales es un gas t\u00f3xico asociado con olores intensos, riesgos para la seguridad de los trabajadores y corrosi\u00f3n de la infraestructura. Se forma cuando se agota el ox\u00edgeno y las bacterias reductoras de sulfato comienzan a convertir los sulfatos presentes en las aguas residuales en sulfuros.<\/p>\n","protected":false},"author":2,"featured_media":5481,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[81],"tags":[],"class_list":["post-5482","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sulfuro de hidr\u00f3geno (H2S) en aguas residuales | PMnB<\/title>\n<meta name=\"description\" content=\"El sulfuro de hidr\u00f3geno (H2S) en aguas residuales causa olores, corrosi\u00f3n y riesgos sanitarios. 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