{"id":3781,"date":"2026-02-11T12:54:58","date_gmt":"2026-02-11T11:54:58","guid":{"rendered":"https:\/\/uberplants.it\/processi\/removal-and-abatement-of-ammonia\/"},"modified":"2026-03-17T17:54:42","modified_gmt":"2026-03-17T16:54:42","slug":"removal-and-abatement-of-ammonia","status":"publish","type":"processi","link":"https:\/\/uberplants.it\/en\/processi\/removal-and-abatement-of-ammonia\/","title":{"rendered":"Removal and Abatement of Ammonia"},"content":{"rendered":"<p><strong>Ammonia<\/strong> is a contaminant found in many types of industrial water and wastewater, resulting from chemical and agro-industrial processes as well as waste treatment. Its removal is essential to prevent negative environmental impacts and damage to industrial processes. There are two main technologies for ammonia removal: <strong>stripping towers with downstream removal and reverse osmosis.<\/strong><\/p>\n<p><strong>Ammonia Removal Using Stripping Towers<\/strong><\/p>\n<p><strong>Stripping towers<\/strong> utilize the principle of ammonia volatilization in an alkaline environment to separate it from water. The process takes place in several stages:<\/p>\n<ul>\n<li><strong>Increasing the pH<\/strong>: Add an alkalizing agent (e.g., NaOH) to convert ammonium (NH\u2084\u207a) into free ammonia (NH\u2083).<\/li>\n<li><strong>Air or steam stripping<\/strong>: Water is passed through a tower filled with a high-surface-area packing material, while a stream of blown air facilitates the transfer of ammonia into the gas phase.<\/li>\n<li><strong>Downstream abatement<\/strong>: Ammonia-laden gases are treated in acid scrubbers to neutralize the ammonia and reduce emissions into the atmosphere.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Proven and effective technology for high concentrations of ammonia.<\/strong><\/li>\n<li><strong>Significant reduction in dissolved ammonia, up to 90\u201395%.<\/strong><\/li>\n<li><strong>Potential for recovering ammonia for industrial reuse.<\/strong><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Ammonia Removal via Reverse Osmosis<\/strong><\/p>\n<p><strong>Reverse osmosis (RO)<\/strong> is an alternative technology for removing ammonia from water with low to moderate concentrations. The process uses semipermeable membranes to separate ammonia and other contaminants.<\/p>\n<p>However, the effectiveness of reverse osmosis in removing ammonia depends on key operating parameters:<\/p>\n<ul>\n<li><strong>Water pH<\/strong>: At neutral or acidic pH levels, ammonia exists as the ammonium ion (NH\u2084\u207a), which is more easily retained by membranes. At an alkaline pH, it becomes NH\u2083, which is less stable.<\/li>\n<li><strong>Operating pressure<\/strong>: must be appropriate for the ammonia concentration and the type of membrane used.<\/li>\n<li><strong>Membrane selectivity<\/strong>: Some RO membranes are more effective at removing ammonium ions than others.<\/li>\n<li><strong>Pre-treatment and post-treatment<\/strong>: Combining these processes with ion exchange or degassing systems can improve removal efficiency.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Effective technology for low- and medium-concentration ammonia.<\/strong><\/li>\n<li><strong> Lower environmental impact compared to chemical-physical processes.<\/strong><\/li>\n<li><strong>Greater control over operating parameters for optimal efficiency.<\/strong><\/li>\n<\/ul>\n<p><strong>Integrating Technologies for Maximum Efficiency<\/strong><\/p>\n<p>The two technologies can be integrated to achieve a <strong>highly efficient combined treatment.<\/strong> Water treated using the <strong>stripping tower<\/strong> can then be further purified via reverse osmosis, reduc<strong>ing the final waste volume by up to 90%<\/strong>. This solution results in <strong>significant savings on disposal costs<\/strong> and a lower environmental impact, making the process both sustainable and cost-effective.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"divisioni":[18],"class_list":["post-3781","processi","type-processi","status-publish","hentry","divisioni-trattamento-acque"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Removal and Abatement of Ammonia - Uber Plants<\/title>\n<meta name=\"description\" content=\"Ammonia is a contaminant resulting from chemical and agro-industrial processes, as well as waste treatment. 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