{"id":5828,"date":"2017-08-07T12:26:21","date_gmt":"2017-08-07T12:26:21","guid":{"rendered":"http:\/\/nchasia.com\/vn-vn\/?p=5828"},"modified":"2025-07-02T16:41:29","modified_gmt":"2025-07-02T08:41:29","slug":"chemical-treatment-for-legionella","status":"publish","type":"post","link":"https:\/\/www.nchasia.com\/vn-vn\/chemical-treatment-for-legionella\/","title":{"rendered":"Chemical treatment for legionella"},"content":{"rendered":"<p><strong>Legionella bacteria often grow in lakes, ponds, and rivers and can cause Legionnaires\u2019 disease. Outbreaks of Legionnaire&#8217;s disease originate from human exposure to water droplets from purpose-built HVAC systems (heating, ventilation and air conditioning). These units provide the optimum environmental conditions for the bacteria to thrive.<\/strong><\/p>\n<h2><strong>CONSIDER CHEMICAL WATER TREATMENTS TO COMBAT LEGIONELLA<\/strong><\/h2>\n<p>Chemical water treatments are highly recommended for any facility. In some cases, the law dictates that they are used to\u00a0<a href=\"https:\/\/www.nchasia.com\/en-in\/solutions\/water-treatment\/legionella\">prevent cases of legionnaires\u2019 disease<\/a>\u00a0&#8211; which can at times be fatal.<\/p>\n<p>There are a number of factors to consider to help determine if your establishment would benefit from a chemical water treatment. You should be using chemical treatments if:<\/p>\n<p>You have the responsibility of a high-risk establishment; these include:<\/p>\n<ul>\n<li style=\"list-style-type: none\">\n<ul>\n<li>Hotels<\/li>\n<li>Restaurants<\/li>\n<li>Schools<\/li>\n<li>Public pools<\/li>\n<li>Hospitals<\/li>\n<li>Nursing homes<\/li>\n<li>Your system stores or re-circulates water at temperatures above 20\u00b0C or below 60\u00b0 The optimum temperature for legionella bacteria to thrive is between 20\u00b0C-45\u00b0C.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>There are signs of scaling, sludge, grime or other fouling that provide a source of nutrients for bacteria to breed &#8211; even a small amount can be harmful to your health.<\/li>\n<li>Your water systems have not been used recently \u2013 stagnant water offers the ideal breeding ground for bacteria to thrive in.<\/li>\n<\/ul>\n<p>How do chemical treatments prevent Legionnaires\u2019 disease?<\/p>\n<p>Treatments often contain a combination of chemicals. Each chemical plays a part in preventing Legionella in water systems and the possible outbreak of legionnaires disease.<\/p>\n<p><strong>The following table describes the different types of water chemical treatments and how they work:<\/strong><\/p>\n<table class=\"table\">\n<thead class=\"bg-grey\">\n<tr>\n<th><strong>Legionella Treatment<\/strong><\/th>\n<th><strong>Effects<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Corrosion inhibitors<\/td>\n<td>Organic, inorganic and non-phosphate corrosion inhibitors are added to the water to prevent corrosion and limescale deposits which provide an excellent environment for the growth of the bacteria.<\/td>\n<\/tr>\n<tr>\n<td>Biocide<\/td>\n<td>This treatment kills the harmful microorganisms before they can grow and become a health threat.<\/td>\n<\/tr>\n<tr>\n<td>Dispersant<\/td>\n<td>This treatment breaks down sludge and other dirt particles to penetrate and clean deposits.<\/td>\n<\/tr>\n<tr>\n<td>Oxidation<\/td>\n<td>Oxidation treatments disinfect and deoxidise water systems to keep them clean and sanitary.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>In any water supplement program, it is important that the treatment process is tailored to its particular use.\u00a0<a href=\"https:\/\/www.nchasia.com\/en-in\/contact-us\">Contact NCH Asia<\/a>\u00a0to find out more about our bespoke microbiological and chemical analytical services.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Legionella bacteria often grow in lakes, ponds, and rivers and can cause Legionnaires\u2019 disease. Outbreaks of Legionnaire&#8217;s disease originate from [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5584,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,16],"tags":[703,734,717],"class_list":["post-5828","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all","category-water-treatment","tag-articles","tag-legionella","tag-water-treatment","article_type-articles"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chemical treatment for legionella - NCH Vietnam<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.nchasia.com\/vn-vn\/chemical-treatment-for-legionella\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chemical treatment for legionella - NCH Vietnam\" \/>\n<meta property=\"og:description\" content=\"Legionella bacteria often grow in lakes, ponds, and rivers and can cause Legionnaires\u2019 disease. 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