{"id":3126,"date":"2025-04-18T04:51:51","date_gmt":"2025-04-18T04:51:51","guid":{"rendered":"https:\/\/www.kelvinindia.in\/blog\/?p=3126"},"modified":"2025-04-18T05:12:50","modified_gmt":"2025-04-18T05:12:50","slug":"difference-between-etp-and-stp","status":"publish","type":"post","link":"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/","title":{"rendered":"Difference Between ETP and STP"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2025\/04\/sewage-treatment-plant-3.jpg\" alt=\"ETP STP\" class=\"wp-image-3128\" width=\"840\" height=\"504\" srcset=\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2025\/04\/sewage-treatment-plant-3.jpg 750w, https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2025\/04\/sewage-treatment-plant-3-300x180.jpg 300w, https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2025\/04\/sewage-treatment-plant-3-450x270.jpg 450w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center\">Water pollution is a serious issue affecting the environment. Every day, large amounts of dirty water are released from homes, factories, and industries. To protect our environment and reuse water safely, it is important to clean this wastewater before releasing it back into nature. Two important systems are used for this purpose:<a href=\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\"> <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">STP (Sewage Treatment Plant<\/mark><\/strong><\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><a href=\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\"><strong>)<\/strong><\/a> <\/mark>and <strong>ETP (Effluent Treatment Plant)<\/strong>. Though both are used to treat wastewater, they are designed for different types of waste and have different methods of operation.<\/p>\n\n\n\n<div style=\"height:17px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h1 class=\"wp-block-heading has-text-align-center\" style=\"font-size:25px\"><strong>What is STP?<\/strong><\/h1>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background\"\/>\n\n\n\n<p><strong>STP stands for Sewage Treatment Plant<\/strong>. It is mainly used to treat <strong>sewage water<\/strong>, which comes from domestic sources like homes, offices, schools, and public places. This water contains human waste, food particles, soap, oil, and other organic matter.<\/p>\n\n\n\n<p class=\"has-text-align-center\">The main goal of STP is to remove harmful substances from domestic sewage and make the water clean enough to be safely released into rivers or reused for purposes like gardening or flushing toilets.<\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" style=\"font-size:25px\"><strong>What is ETP?<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background\"\/>\n\n\n\n<p><strong>ETP stands for <a href=\"https:\/\/www.kelvinindia.in\/effluent-treatment-plant\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Effluent Treatment Plant<\/mark><\/a><\/strong>. It is mainly used to treat <strong>industrial wastewater<\/strong>, which is also called effluent. This water comes from factories and industries and contains chemicals, heavy metals, oil, grease, dyes, and other harmful substances.<\/p>\n\n\n\n<p>The main goal of ETP is to clean industrial water, remove dangerous chemicals, and reduce pollution before the water is released into the environment.<\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" style=\"font-size:24px\"><strong>Key Differences Between STP and ETP<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background\"\/>\n\n\n\n<p>Here is a detailed comparison of STP and ETP in different aspects:<\/p>\n\n\n\n<p><strong>1. Source of Wastewater<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STP:<\/strong> Treats sewage water from domestic sources such as homes, apartments, hotels, offices, and schools.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ETP:<\/strong> Treats effluent water from industrial sources such as factories, chemical plants, textile units, pharmaceutical industries, etc.<\/li>\n<\/ul>\n\n\n\n<p><strong>2. Type of Contaminants<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STP:<\/strong> Deals with organic waste, soap, food particles, hair, human waste, and biodegradable materials.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ETP:<\/strong> Handles toxic chemicals, oils, acids, alkalis, metals, dyes, and non-biodegradable materials.<\/li>\n<\/ul>\n\n\n\n<p><strong>3. Complexity of Treatment<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STP:<\/strong> Less complex as it mainly removes organic matter using biological processes.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ETP:<\/strong> More complex due to the presence of hazardous and non-biodegradable substances. It often requires chemical, physical, and biological treatments.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4. Treatment Processes Used<\/strong><\/h4>\n\n\n\n<p><strong>STP:<\/strong> <strong>Usually includes the following steps:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Screening (removing large solids)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sedimentation (settling of solids)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Biological treatment (using bacteria to break down waste)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filtration and disinfection (to kill germs)<\/li>\n<\/ul>\n\n\n\n<p><strong>ETP: Usually includes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Screening and oil separation<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>pH adjustment<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chemical treatment (like coagulation and flocculation)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Biological treatment (in some cases)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filtration and drying of sludge<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>5. End Use of Treated Water<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STP:<\/strong> Treated water can be reused for gardening, toilet flushing, cleaning, or even further processed for drinking in advanced systems.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ETP:<\/strong> Treated water is usually reused for industrial purposes or safely discharged into water bodies after meeting environmental standards.<\/li>\n<\/ul>\n\n\n\n<p><strong>6. Maintenance and Monitoring<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STP:<\/strong> Easier to maintain due to simpler processes and less harmful materials.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ETP:<\/strong> It Requires expert monitoring and careful handling of dangerous substances.<\/li>\n<\/ul>\n\n\n\n<p><strong>7. Examples of Use<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STP:<\/strong> Used in residential societies, hospitals, hotels, schools, and offices.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ETP:<\/strong> Used in chemical industries, textile factories, food processing units, pharmaceutical companies, and paint manufacturing.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" style=\"font-size:25px\"><strong>Why Are STP and ETP Important?<\/strong><\/h3>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background\"\/>\n\n\n\n<p>Both STP and ETP play a vital role in protecting the environment and promoting the reuse of water. Here\u2019s why they are important:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Protect Human Health:<\/strong> They prevent harmful substances from polluting our water sources, which could cause diseases.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Environmental Safety:<\/strong> They reduce water pollution and help maintain the balance of ecosystems.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Water Conservation:<\/strong> Treated water can be reused, which saves fresh water.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Legal Requirement:<\/strong> Many governments have made it mandatory for buildings and industries to have STPs and ETPs to follow pollution control laws.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:17px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" style=\"font-size:25px\"><strong>Common Features of STP and ETP<\/strong><\/h3>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background\"\/>\n\n\n\n<p>Even though STP and ETP are different in purpose and design, they also have some similarities:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Both treat wastewater and aim to reduce pollution.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Both can use biological treatment methods.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Both involve multiple stages like screening, settling, and disinfection.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Both generate <strong>sludge<\/strong> (waste solids), which needs to be managed properly.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Both require regular maintenance to work effectively.<\/li>\n<\/ul>\n\n\n\n<p><strong>Future of Wastewater Treatment<\/strong><\/p>\n\n\n\n<p>With increasing awareness about the environment, the demand for better STP and ETP systems is growing. New technologies like <strong>membrane bioreactors (<a href=\"https:\/\/www.kelvinindia.in\/mbr\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">MBR<\/mark><\/a>)<\/strong>, <strong>ultrafiltration<\/strong>, <strong>UV disinfection<\/strong>, and <strong>automated control systems<\/strong> are making wastewater treatment more efficient and less labour-intensive.<\/p>\n\n\n\n<p>Governments are also encouraging the use of recycled water in construction, agriculture, and industry to reduce water shortage and pollution.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\">ETP &amp; STP Manufacturer <\/h3>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background\"\/>\n\n\n\n<p><strong><a href=\"https:\/\/www.kelvinindia.in\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Kelvin Water Technologies Pvt. Ltd.<\/mark><\/a><\/strong> is one of India\u2019s leading environmental engineering companies, offering advanced solutions for water and wastewater treatment. The company specializes in the design, manufacturing, installation, and maintenance of STP, ETP, and other treatment systems.<\/p>\n\n\n\n<p><strong>Key Highlights:<\/strong><\/p>\n\n\n\n<p><strong>\u2705 Over 15 years of industry experience<\/strong><\/p>\n\n\n\n<p><strong>\u2705 Certified ISO 9001:2015 company<\/strong><\/p>\n\n\n\n<p><strong>\u2705 Customized solutions for domestic and industrial clients<\/strong><\/p>\n\n\n\n<p><strong>\u2705 Expert team of engineers and environmental professionals<\/strong><\/p>\n\n\n\n<p><strong>\u2705 PAN India presence with successful projects across states<\/strong><\/p>\n\n\n\n<p><strong>\u2705 Focus on sustainability and cost-effective solutions<\/strong><\/p>\n\n\n\n<div style=\"height:23px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\"><strong>Conclusion<\/strong><\/h3>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background\"\/>\n\n\n\n<p class=\"has-text-align-center\">In simple terms, <strong>STP is for domestic sewage<\/strong> and <strong>ETP is for industrial wastewater<\/strong>. While STP mainly deals with biodegradable waste, ETP handles more complex and dangerous substances. Both systems are essential for keeping our environment clean, saving water, and following pollution control rules.<\/p>\n\n\n\n<p class=\"has-text-align-center\">Understanding the difference between <strong>STP and ETP<\/strong> helps us appreciate the efforts made to treat wastewater and encourages us to use water more responsibly.<\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">To use our services right now,&nbsp;<strong>you can call us&nbsp;at&nbsp;<a href=\"tel:9812241001\"><mark><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">+91-<strong>981224100<\/strong><\/mark><strong>1<\/strong><\/mark><\/a><mark>&nbsp;<\/mark>or send us an email at&nbsp;<strong><a href=\"mailto:info@kelvinindia.in\"><mark><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">info@kelvinindia.in<\/mark><\/mark><\/a><mark><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">&nbsp;<\/mark><\/mark><\/strong>We will be delighted to assist you!<strong>&nbsp;<\/strong><\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/www.youtube.com\/watch?v=tMXYqh7Gl6Y&amp;t=8s&amp;ab_channel=WasteManagement\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Small Units Effluent Treatment Plant | 2 KLD &amp; 5 KLD | Mfr &amp; Supply Globally<\/mark><\/a><\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-embed-handler wp-block-embed-embed-handler wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div 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value=\"https:\/\/www.kelvinindia.in\/blog\/wp-json\/wp\/v2\/posts\/3126\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-1784\" class=\"wpforms-submit\" data-alt-text=\"Sending...\" data-submit-text=\"Submit\" aria-live=\"assertive\" value=\"wpforms-submit\">Submit<\/button><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/plugins\/wpforms-lite\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"Loading\"><\/div><\/form><\/div>  <!-- .wpforms-container --><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Water pollution is a serious issue affecting the environment. Every day, large amounts of dirty water are released from homes, factories, and industries. To protect our environment and reuse water safely, it is important to clean this wastewater before releasing it back into nature. Two important systems are used for this purpose: STP (Sewage Treatment Plant) and ETP (Effluent Treatment Plant). Though both are used to treat wastewater, they are designed for different types of waste and have different methods&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[322],"tags":[297],"class_list":["post-3126","post","type-post","status-publish","format-standard","hentry","category-stp","tag-etp-stp"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Difference Between ETP and STP | 9812241001<\/title>\n<meta name=\"description\" content=\"ETP STP - ETP stands for Effluent Treatment Plant, which is specifically designed for treating industrial wastewater. STP stands for Sewage Treatment Plant, which treats domestic sewage and wastewater from residential areas.\" \/>\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.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Difference Between ETP and STP | 9812241001\" \/>\n<meta property=\"og:description\" content=\"ETP STP - ETP stands for Effluent Treatment Plant, which is specifically designed for treating industrial wastewater. STP stands for Sewage Treatment Plant, which treats domestic sewage and wastewater from residential areas.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\" \/>\n<meta property=\"og:site_name\" content=\"Kelvin Water Technologies Pvt. Ltd.\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-18T04:51:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-18T05:12:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2025\/04\/sewage-treatment-plant-3.jpg\" \/>\n<meta name=\"author\" content=\"Kelvinwatertech\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kelvinwatertech\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\"},\"author\":{\"name\":\"Kelvinwatertech\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/#\/schema\/person\/b552171b65ff29bdff4bca2389e4b4ba\"},\"headline\":\"Difference Between ETP and STP\",\"datePublished\":\"2025-04-18T04:51:51+00:00\",\"dateModified\":\"2025-04-18T05:12:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\"},\"wordCount\":929,\"image\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2025\/04\/sewage-treatment-plant-3.jpg\",\"keywords\":[\"ETP STP\"],\"articleSection\":[\"STP\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\",\"url\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/\",\"name\":\"Difference Between ETP and STP | 9812241001\",\"isPartOf\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/difference-between-etp-and-stp\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kelvinindia.in\/blog\/wp-content\/uploads\/2025\/04\/sewage-treatment-plant-3.jpg\",\"datePublished\":\"2025-04-18T04:51:51+00:00\",\"dateModified\":\"2025-04-18T05:12:50+00:00\",\"author\":{\"@id\":\"https:\/\/www.kelvinindia.in\/blog\/#\/schema\/person\/b552171b65ff29bdff4bca2389e4b4ba\"},\"description\":\"ETP STP - ETP stands for Effluent Treatment Plant, which is specifically designed for treating industrial wastewater. 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