{"id":6338,"date":"2025-12-03T16:06:36","date_gmt":"2025-12-03T08:06:36","guid":{"rendered":"https:\/\/clearfilterpro.com\/?p=6338"},"modified":"2025-12-04T18:48:21","modified_gmt":"2025-12-04T10:48:21","slug":"how-cfpuas-granular-activated-carbon-filters-work","status":"publish","type":"post","link":"https:\/\/clearfilterpro.com\/ru\/how-cfpuas-granular-activated-carbon-filters-work\/","title":{"rendered":"How CFPUA&#8217;s Granular Activated Carbon filters work"},"content":{"rendered":"<p><strong>You can count on the granular activated carbon filter at CFPUA. It helps make your water cleaner and safer. This filter takes out harmful things like PFAS, including GenX. It removes <\/strong><a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.wect.com\/2019\/09\/11\/cfpua-board-approves-contract-construction-gac-filters\/\"><strong>about 90 percent<\/strong><\/a><strong> of these at the Sweeney Water Treatment Plant. The adsorption process in these filters traps chlorine, organic compounds, and other bad stuff. Here is how different filters work:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0422\u0438\u043f \u0437\u0430\u0433\u0440\u044f\u0437\u043d\u0438\u0442\u0435\u043b\u044f<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0413\u0440\u0430\u043d\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0430\u043a\u0442\u0438\u0432\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0443\u0433\u043e\u043b\u044c<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Other Filtration Methods<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u041e\u0440\u0433\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0445\u043e\u0440\u043e\u0448\u043e<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Changes<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0425\u043b\u043e\u0440<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0445\u043e\u0440\u043e\u0448\u043e<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Changes<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0422\u044f\u0436\u0435\u043b\u044b\u0435 \u043c\u0435\u0442\u0430\u043b\u043b\u044b<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Does not work<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0445\u043e\u0440\u043e\u0448\u043e<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0432\u044b\u0432\u043e\u0434\u044b<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Granular activated carbon filters can take out up to 90% of bad substances like PFAS. This makes your water cleaner and safer to drink.<\/p><\/li>\n\n\n\n<li><p>The filters use a process called adsorption. Contaminants stick to the carbon grains. This helps water taste better and smell nicer.<\/p><\/li>\n\n\n\n<li><p>CFPUA checks and changes the carbon in filters often. This makes sure the filters work well all year. Your water stays safe every day.<\/p><\/li>\n\n\n\n<li><p>These filters help CFPUA follow tough water safety rules. This gives people in the community peace of mind about their drinking water.<\/p><\/li>\n\n\n\n<li><p>Using good carbon materials makes the filters work better. Your water is not just safe, but also tastes fresher and is nicer to drink.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What Is a Granular Activated Carbon (GAC) Filter and How Does CFPUA Use It?<\/h2>\n\n\n\n<p><span style=\"color: rgb(16, 24, 40); font-size: 15px;\"><strong>A Granular Activated Carbon (GAC) filter is a water filtration method that uses porous carbon material to remove impurities. It effectively adsorbs contaminants like chlorine, volatile organic compounds, and other chemicals, improving water taste and odor. The Cape Fear Public Utility Authority (CFPUA) utilizes GAC filters to enhance water quality and ensure safety for its consumers.<\/strong><\/span><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"How CFPUA&#039;s Granular Activated Carbon filters work\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/Yv2lfSaeirw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">What Is a Granular Activated Carbon Filter<\/h3>\n\n\n\n<p>You might wonder how this filter works. It uses small grains of carbon. <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.macwatertechnologies.com\/granular-activated-carbon-water-filters\">These grains come from coconut shells, coal, or wood<\/a>. Each grain has a very large surface area. Even a little bit can trap lots of bad stuff. The filter has tiny holes called micro-pores, meso-pores, and macro-pores. These holes help catch many kinds of pollution.<\/p>\n\n\n\n<p><a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/hydronixwater.com\/granular-activated-carbon-fact-sheet\/\">Here is a table that shows the main parts and features of a granular activated carbon filter<\/a>:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Component\/Characteristic<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Carbon Sources<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Coconut shell, coal, wood, lignite, petroleum products<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Pore Structure<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Micro-pores, meso-pores, macro-pores<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u041c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0430\u0434\u0441\u043e\u0440\u0431\u0446\u0438\u0438<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Attracts and holds organic compounds and non-polar contaminants<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u041f\u043b\u043e\u0449\u0430\u0434\u044c \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Over 1000 m\u00b2 per gram; a pound has more than 35 acres of surface area<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Activation Measurement<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Measured by CTC and Iodine Number for performance<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0423\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c \u043a \u0438\u0441\u0442\u0438\u0440\u0430\u043d\u0438\u044e<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Shell carbons have the highest resistance<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0420\u0430\u0437\u043c\u0435\u0440 \u044f\u0447\u0435\u0439\u043a\u0438<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Affects water flow and reaction speed<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The filter uses adsorption to clean water. Contaminants stick to the carbon as water moves through. This helps take out bad tastes, smells, and chemicals from your water.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How CFPUA Uses GAC Filters<\/h3>\n\n\n\n<p>CFPUA uses these filters in its water treatment system. These filters help take out PFAS, GenX, and other harmful things. The filters work with other cleaning steps. First, water gets basic cleaning to remove big pieces. Next, it goes through the granular activated carbon filter for more cleaning.<\/p>\n\n\n\n<p><a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.bv.com\/projects\/with-black-and-veatchs-treatment-and-project-delivery-expertise-authority-acts-to-resolve-contamination-in-drinking-water-supply\">CFPUA tested the filters in pilot studies<\/a>. They checked how well the filters removed PFAS and other pollution. The filters were added to the system with the pump station and media conveyance. Now, all water sent to homes goes through these filters. This helps CFPUA get PFAS levels very low, so your water is safer.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Tip: The type of carbon, size of the grains, and surface area all matter. CFPUA picks high-quality materials to make the filters work best.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">How Does the Filtration and Adsorption Process Work in CFPUA\u2019s GAC Filters?<\/h2>\n\n\n\n<p><span style=\"color: rgb(16, 24, 40); font-size: 15px;\"><strong>The filtration and adsorption process in CFPUA\u2019s Granular Activated Carbon (GAC) filters effectively removes impurities from water. Initially, water passes through the GAC filter, where large particles are trapped, providing mechanical filtration. Following this, the activated carbon adsorbs organic compounds and contaminants, improving water quality.<\/strong><\/span><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filters.jpg\" alt=\"granular activated carbon filters\" class=\"wp-image-6189\" style=\"width:450px;height:auto\" srcset=\"https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filters.jpg 1024w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filters-300x300.jpg 300w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filters-150x150.jpg 150w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filters-768x768.jpg 768w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filters-12x12.jpg 12w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Step-by-Step Water Treatment<\/h3>\n\n\n\n<p>When you use your faucet, the water has already been cleaned. First, big pieces and dirt are taken out by screens and tanks. Then, the water goes into the granular activated carbon filter. This filter is a large tank with lots of small carbon grains. Water moves slowly through the carbon bed. The grains have many tiny holes. These holes catch chemicals, bad smells, and tastes.<\/p>\n\n\n\n<p>How fast the water moves is important. If water goes too quickly, the filter misses some contaminants. CFPUA uses gravity to move water at the right speed. <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.wateronline.com\/doc\/a-guide-to-pfas-treatment-in-drinking-water-0001\">Deeper carbon beds and slower water<\/a> help the filter work better. This gives you cleaner water because the filter has more time to trap bad things.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Note: Water needs to touch the carbon grains long enough. More time means more contaminants get removed.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u041c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0430\u0434\u0441\u043e\u0440\u0431\u0446\u0438\u0438<\/h3>\n\n\n\n<p>You may wonder how the granular activated carbon filter traps pollution. The answer is adsorption. Adsorption means <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.membranechemicals.com\/water-treatment\/activated-carbon-filters\/\">impurities stick to the carbon grains<\/a>. The carbon attracts organic compounds and non-polar contaminants. These are chemicals that make water taste or smell bad.<\/p>\n\n\n\n<p>Here are some science facts about adsorption:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>The carbon likes oily and organic molecules.<\/p><\/li>\n\n\n\n<li><p>Small holes catch gases, big holes catch bigger molecules.<\/p><\/li>\n\n\n\n<li><p>Impurities stick to the inside of the carbon by attraction.<\/p><\/li>\n\n\n\n<li><p>More time and the right temperature help adsorption work better.<\/p><\/li>\n\n\n\n<li><p>The water\u2019s pH changes how well the carbon grabs contaminants.<\/p><\/li>\n<\/ul>\n\n\n\n<p>As water moves through the filter, particles and chemicals stick to the carbon. The filter takes out byproducts, organic contaminants, and some heavy metals. This makes your water taste and smell better.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PFAS and GenX Removal<\/h3>\n\n\n\n<p>PFAS, including GenX, are very hard to remove. These chemicals do not break down easily. CFPUA\u2019s granular activated carbon filter targets these substances. The filter can <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC11706541\/\">remove up to 100% of PFAS<\/a>, depending on some things. These include the carbon type, how deep the carbon bed is, and how fast water flows.<\/p>\n\n\n\n<p>Here is a table that shows how different granular activated carbon filters remove PFAS:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>GAC Type<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>EBCT (min)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>PFAS Types Removed<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>GAC 1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~10<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>5 PFCAs, 1 PFSA, 4 PFECAs, 1 PFESA<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>GAC 2<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~10<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 PFAS<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>GAC 3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~10<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>7 PFAS<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>GAC 1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~20<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>8 PFAS<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>CFPUA tests the filters in small and pilot studies. These tests show the filters remove GenX and other PFAS well. The most common PFAS in CFPUA\u2019s water are GenX, PFOA, PFOS, PFHxS, PFNA, and PFBS. All of these are regulated and must be kept very low.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>PFAS Type<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Regulation Status<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>GenX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Regulated<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>PFOA<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Regulated<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u041f\u0424\u041e\u0421<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Regulated<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>PFHxS<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Regulated<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>PFNA<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Regulated<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>PFBS<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Regulated<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>You get safer water because the filter lowers <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.cfpua.org\/761\/Emerging-Compounds\">PFAS levels<\/a>. The granular activated carbon filter helps keep your water safe and healthy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Effective Are CFPUA\u2019s GAC Filters in Improving Water Quality?<\/h2>\n\n\n\n<p><span style=\"color: rgb(16, 24, 40); font-size: 15px;\"><strong>CFPUA&#8217;s GAC filters are highly effective in improving water quality by removing contaminants such as organic chemicals and unpleasant tastes or odors. These filters use granulated activated carbon (GAC) to adsorb impurities, ensuring cleaner and safer drinking water.<\/strong><\/span><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"683\" height=\"1024\" src=\"https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-2-683x1024.jpg\" alt=\"granular activated carbon filter (2)\" class=\"wp-image-6284\" style=\"width:381px;height:auto\" srcset=\"https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-2-683x1024.jpg 683w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-2-200x300.jpg 200w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-2-768x1152.jpg 768w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-2-8x12.jpg 8w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-2.jpg 1024w\" sizes=\"(max-width: 683px) 100vw, 683px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Achieving Non-Detection of PFAS<\/h3>\n\n\n\n<p>You want your water to be safe. CFPUA made upgrades at the Sweeney Water Treatment Plant to help with this. The new <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.wfae.org\/2024-04-23\/cfpua-could-be-a-guide-for-how-utilities-can-meet-the-epas-new-drinking-water-standards\">granular activated carbon filter system<\/a> started in October 2022. It uses eight big tanks filled with 375,000 pounds of carbon. This system takes out PFAS, including GenX, from your water. In many tests, the filters lowered PFAS so much that labs could not find them. This means your water meets or is better than the newest safety rules.<\/p>\n\n\n\n<p>PFAS can be very bad for your health. High amounts can cause cancer, make it harder to have babies, cause birth problems, and hurt your immune system. By using these filters, CFPUA keeps you and your family safer from these problems. You can feel good about drinking your water every day.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Note: CFPUA put in this system before the new federal rules. This shows they care a lot about your health and safety.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits of GAC Filtration<\/h3>\n\n\n\n<p>You get lots of good things from the granular activated carbon filter. These filters do more than just take out PFAS. They also make your water taste and smell better. You will notice your water is cleaner and fresher.<\/p>\n\n\n\n<p>Here are some main benefits:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>The filters catch and remove harmful chemicals, so your water is safer.<\/p><\/li>\n\n\n\n<li><p>They help CFPUA follow strict water safety rules.<\/p><\/li>\n\n\n\n<li><p>The system works for lots of water, so everyone in the community gets clean water.<\/p><\/li>\n\n\n\n<li><p>You get water at home that tastes and smells better.<\/p><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0412\u044b\u0433\u043e\u0434\u0430<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>High Adsorption Capacity<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Catches and removes many harmful things, keeping water and equipment safe<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Proven Reliability<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trusted by the EPA for removing dissolved organics in big water systems<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Adaptability<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Works for different sizes of water systems<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Improvement of Taste and Odor<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Takes out chlorine and by-products, making water taste and smell better<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>You can trust your water is safe and nice to drink.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0421\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0435 \u043d\u043e\u0440\u043c\u0430\u0442\u0438\u0432\u043d\u044b\u043c \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c<\/h3>\n\n\n\n<p>You want to know your water follows all the rules. CFPUA\u2019s granular activated carbon filter helps <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/generalcarbon.com\/understanding-granular-activated-carbon-for-water-treatment\/\">meet state and federal water standards<\/a>. The filters lower PFAS below the new federal limits. This means your water is safe and legal to use.<\/p>\n\n\n\n<p>CFPUA\u2019s system shows they are good at treating water. They started using these filters before the government said they had to. This early step keeps your water safe and shows CFPUA cares about public health.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Tip: GAC filters are important for meeting water safety rules and keeping you healthy.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Maintenance and Challenges<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-6-1024x683.jpg\" alt=\"granular activated carbon filter (6)\" class=\"wp-image-6288\" style=\"width:624px;height:auto\" srcset=\"https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-6-1024x683.jpg 1024w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-6-300x200.jpg 300w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-6-768x512.jpg 768w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-6-18x12.jpg 18w, https:\/\/clearfilterpro.com\/wp-content\/uploads\/2025\/11\/granular-activated-carbon-filter-6.jpg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Filter Replacement and Upkeep<\/h3>\n\n\n\n<p>You help keep water safe by supporting <a target=\"_blank\" href=\"https:\/\/mechrank.com\/check-valve\/\">\u0443\u0445\u043e\u0434 \u0437\u0430 \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u043c\u0438<\/a>. CFPUA has a strict plan to keep the GAC filters working well. Workers check the filters often. They <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.wateronline.com\/doc\/a-guide-to-pfas-treatment-in-drinking-water-0001\">change or clean the carbon<\/a> when needed. Most GAC beds get new carbon <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.cfpua.org\/780\/Frequently-Asked-Questions\">every 270 days<\/a>. Sometimes, they change it sooner if tests show it is not working well.<\/p>\n\n\n\n<p>Here is a table that shows the main <a target=\"_blank\" href=\"https:\/\/mechrank.com\/metal-polishing-machines\/\">maintenance activities<\/a>:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Maintenance Activity<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u041f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>GAC Replacement<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Every 270 days or sooner, staggered to keep performance high.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>GAC Regeneration<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Used carbon goes offsite. High heat destroys PFAS. The carbon comes back ready to use again.<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>You pay a small part of these costs in your water bill. The average customer pays <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/coastalreview.org\/2025\/03\/no-nc-limit-on-14-dioxane-means-water-customers-bear-costs\/\">$7.50<\/a> each month for the new system. Each year, CFPUA spends about $4.3 million to keep the filters working and remove PFAS.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Addressing Tough Contaminants<\/h3>\n\n\n\n<p>GAC filters work well for many chemicals, but not all. These filters do not remove iron, nitrate, or hard water minerals. They also <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/krakensense.com\/blog\/granular-activated-carbon-water-filter\">do not stop bacteria or viruses<\/a>. If you want to remove these, you need other filters like reverse osmosis.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>GAC filters do not remove:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>Iron or nitrate<\/p><\/li>\n\n\n\n<li><p>\u041c\u0438\u043a\u0440\u043e\u0431\u043d\u044b\u0435 \u0437\u0430\u0433\u0440\u044f\u0437\u043d\u0435\u043d\u0438\u044f (\u0431\u0430\u043a\u0442\u0435\u0440\u0438\u0438 \u0438 \u0432\u0438\u0440\u0443\u0441\u044b)<\/p><\/li>\n\n\n\n<li><p>Hard water minerals (calcium, magnesium)<\/p><\/li>\n\n\n\n<li><p>\u0424\u0442\u043e\u0440<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Tip: CFPUA uses other treatment steps for things GAC cannot remove.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Ensuring Consistent Performance<\/h3>\n\n\n\n<p>You get the best water when filters work their best. Over time, the carbon fills up with contaminants. This means the filters remove less PFAS as they get older. For example, after one year, the filter removes almost all PFHxS and PFOA. After two years, more is left in the water.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Time Period<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>PFHxS (\u03bcg\/L)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>PFOA (\u03bcg\/L)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.mdpi.com\/2227-9717\/9\/4\/571\">&lt; 1 year<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0.015<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0.002<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>1\u20132 years<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0.051<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0.008<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>&gt; 2 years<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0.107<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0.009<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>CFPUA checks the filters often and changes the carbon before it stops working well. Workers also look for new pollution and plan upgrades for the future. This way, you always get safe, clean water at home.<\/p>\n\n\n\n<p>You can count on the granular activated carbon filter to keep water safe. CFPUA\u2019s system takes out PFAS and GenX. It serves <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.cfpua.org\/Sweeney\">170,000 people<\/a> in the area. The system can treat up to 44 million gallons each day.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0430<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Detail<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>PFAS Detection<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>None found after installation<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Community Impact<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cape Fear region<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Technology Performance<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Extremely effective<\/p><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Activated carbon is one of the <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/puragen.com\/uk\/insights\/advanced-approaches-to-micropollutants-in-water\/\">best ways to remove harmful chemicals<\/a>. If you want to know more, look for information about water cleaning and how activated carbon works.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0427\u0410\u0421\u0422\u041e \u0417\u0410\u0414\u0410\u0412\u0410\u0415\u041c\u042b\u0415 \u0412\u041e\u041f\u0420\u041e\u0421\u042b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">How often does CFPUA replace the carbon in the filters?<\/h3>\n\n\n\n<p>CFPUA replaces the carbon about every 270 days. Workers check the filters often. If tests show the carbon is full, they change it sooner. This keeps your water safe.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can the GAC filters remove all types of contaminants?<\/h3>\n\n\n\n<p>GAC filters remove many chemicals, like PFAS and chlorine. They do not remove minerals, iron, nitrate, or germs. CFPUA uses other treatment steps for those.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why does my water taste better after GAC filtration?<\/h3>\n\n\n\n<p>The carbon traps chemicals that cause bad tastes and smells. You get fresher, cleaner water. Many people notice a big difference after filtration.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is the water safe to drink after GAC filtration?<\/h3>\n\n\n\n<p>Yes. CFPUA\u2019s filters lower PFAS and other harmful chemicals. Your water meets or beats all safety rules. You can drink it with confidence.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What should I do if I notice a change in my water?<\/h3>\n\n\n\n<p>If you see, smell, or taste something odd, call CFPUA. Workers will test your water and fix any problems. Your feedback helps keep water safe.<\/p>","protected":false},"excerpt":{"rendered":"<p>CFPUA\u2019s granular activated carbon filter removes PFAS, GenX, and organic compounds, ensuring cleaner, safer water for your home.<\/p>","protected":false},"author":1,"featured_media":6284,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"How CFPUA's Granular Activated Carbon filters work","_seopress_titles_desc":"Find out how CFPUA's granular activated carbon filters purify water by removing contaminants and improving taste and odor for safer consumption.","_seopress_robots_index":"","footnotes":""},"categories":[256],"tags":[255],"class_list":["post-6338","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-granular-activated-carbon-filter","tag-granular-activated-carbon-filter"],"_links":{"self":[{"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/posts\/6338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/comments?post=6338"}],"version-history":[{"count":2,"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/posts\/6338\/revisions"}],"predecessor-version":[{"id":6385,"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/posts\/6338\/revisions\/6385"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/media\/6284"}],"wp:attachment":[{"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/media?parent=6338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/categories?post=6338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/clearfilterpro.com\/ru\/wp-json\/wp\/v2\/tags?post=6338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}