{"id":7452,"date":"2026-06-19T15:33:44","date_gmt":"2026-06-19T15:33:44","guid":{"rendered":"https:\/\/advisou.com\/blog\/?p=7452"},"modified":"2026-09-08T07:30:50","modified_gmt":"2026-09-08T07:30:50","slug":"reverse-osmosis-water-treatment-plant","status":"publish","type":"post","link":"https:\/\/advisou.com\/blog\/reverse-osmosis-water-treatment-plant\/","title":{"rendered":"How to Start a Reverse Osmosis Water Treatment Plant in India- A 2026 Guide"},"content":{"rendered":"\n<p>India is richly endowed with water, yet suffers from a lack of potable water. It is a scary situation, but some see the crisis as a powerful business opportunity. The scarcity of drinking water has led many to set up a reverse osmosis water treatment plant in India. If you are in doubt whether to initiate such a venture in India, this guide can be handy. This will provide a full blueprint of this business model, how it works, the licenses it requires, etc. So, let&#8217;s get going.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_78 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/advisou.com\/blog\/reverse-osmosis-water-treatment-plant\/#How_does_a_reverse_osmosis_water_treatment_plant_work\" >How does a reverse osmosis water treatment plant work?\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/advisou.com\/blog\/reverse-osmosis-water-treatment-plant\/#Reverse_Osmosis_Water_Treatment_Plant_Understanding_Infrastructure_Needs\" >Reverse Osmosis Water Treatment Plant: Understanding Infrastructure Needs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/advisou.com\/blog\/reverse-osmosis-water-treatment-plant\/#Reverse_Osmosis_Water_Treatment_Plant_%E2%80%93_Resources_Machinery\" >Reverse Osmosis Water Treatment Plant \u2013 Resources &amp; Machinery<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/advisou.com\/blog\/reverse-osmosis-water-treatment-plant\/#Cost_of_Setting_Up_a_Reverse_Osmosis_Water_Treatment_Plant\" >Cost of Setting Up a Reverse Osmosis Water Treatment Plant<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/advisou.com\/blog\/reverse-osmosis-water-treatment-plant\/#Licenses_Needed_for_a_Reverse_Osmosis_Water_Treatment_Plant_Startup\" >Licenses Needed for a Reverse Osmosis Water Treatment Plant Startup<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/advisou.com\/blog\/reverse-osmosis-water-treatment-plant\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_does_a_reverse_osmosis_water_treatment_plant_work\"><\/span>How does a reverse osmosis water treatment plant work?\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The industrial RO plant follows a series of purification steps to reduce the Total Dissolved Solids (TDS) and eliminate the pathogens.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Raw Water Intake: Borewell, municipal line, or water tanker water pumped to the raw water storage tank.<\/li>\n\n\n\n<li>Pre-Treatment (Multi-Media Sand &amp; Carbon Filters): * Sand Filter: Eliminates suspended solids, dust, and turbidity<\/li>\n\n\n\n<li>Activated Carbon Filter Eliminates chlorine, organic materials, odor and color.<\/li>\n\n\n\n<li>Water Softener (optional): Ion-exchange resin to remove excess calcium and magnesium from very hard water (over 300 ppm).<\/li>\n\n\n\n<li>Micron Cartridge Filters: These are fine filters, typically 5-micron, that catch small particles just before the water goes to the membranes.<\/li>\n\n\n\n<li>High-Pressure Pump &amp; RO Membranes A high-pressure pump pushes water through the semi-permeable RO membranes. Pure water molecules pass through while dissolved solids, heavy metals, and chemicals are rejected and flushed away.<\/li>\n\n\n\n<li>Post Treatment &amp; Sterilization: Ozonization: Ozonize the water to destroy residual germs and increase shelf life.<\/li>\n\n\n\n<li>UV Sterilizer: Kills any residual viral or bacterial DNA in the final stage.<\/li>\n\n\n\n<li>Product Water Storage: The final purified water is stored in food-grade stainless steel (SS) tanks before bottling or jar filling.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Reverse_Osmosis_Water_Treatment_Plant_Understanding_Infrastructure_Needs\"><\/span>Reverse Osmosis Water Treatment Plant: Understanding Infrastructure Needs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>To get government clearances, your plant layout has to be as per strict hygiene standards.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Land &amp; Built-up Area: For a small-scale plant (1000 liters per hour), a minimum of 1,000 to 1,500 sq. ft. For large plants with in-house bottle blowing, you will need 3,000 to 5,000+ sq. ft.<\/li>\n\n\n\n<li>Civil Layout (Zoning): The facility shall be physically divided into dedicated zones as follows:<\/li>\n\n\n\n<li>Raw water storage and pretreatment zone.<\/li>\n\n\n\n<li>Main RO processing and filling room (should be dust-free and air-conditioned)<\/li>\n\n\n\n<li>Packaging and finished goods warehousing.<\/li>\n\n\n\n<li>In-house testing laboratory (compulsory for BIS compliance).<\/li>\n\n\n\n<li>Flooring &amp; Walls: Smooth tiled flooring, easy to wash, and proper slope drainage. Walls: Walls should be covered with ceramic tiles up to 6-7 feet for the purpose of maintaining hygiene.<\/li>\n\n\n\n<li>Power Supply: Commercial A.C. power line. A 1,000 LPH plant usually has a load of 10 kW to 15 kW. We strongly recommend a diesel generator backup.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Reverse_Osmosis_Water_Treatment_Plant_%E2%80%93_Resources_Machinery\"><\/span>Reverse Osmosis Water Treatment Plant \u2013 Resources &amp; Machinery<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>To operationalize the plant, you will need the following capital and human assets:<\/p>\n\n\n\n<p><strong>Equipment list<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>RO generation system (core RO skid, pumps, vessels, and membranes)<\/li>\n\n\n\n<li>Storage Tanks: Raw water tanks (HDPE\/SMC) and final treated water tanks (Stainless Steel 304\/316 grade).<\/li>\n\n\n\n<li>Filling &amp; Sealing Line: Semi-automatic or fully automatic bottle\/jar fillers.<\/li>\n\n\n\n<li>In-house Laboratory Equipment: Autoclaves, incubators, Laminar airflow hoods, and chemical testing kits for daily quality audits.<\/li>\n\n\n\n<li>HR<\/li>\n\n\n\n<li>1 Plant Supervisor \/ Chemist: B.Sc. or M.Sc. in Chemistry\/Microbiology (mandatory for BIS approval).<\/li>\n\n\n\n<li>1 Machine Operator\/Technician: To perform routine plant maintenance and operations.<\/li>\n\n\n\n<li>2\u20133 Helpers: for loading, packing, and washing jars.<\/li>\n\n\n\n<li>Delivery Staff: Drivers and loaders for market delivery.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cost_of_Setting_Up_a_Reverse_Osmosis_Water_Treatment_Plant\"><\/span>Cost of Setting Up a Reverse Osmosis Water Treatment Plant<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To install a normal 1000 LPH (liters per hour) semi-automatic packaged water plant, a realistic initial capital of Rs.15 Lakhs to Rs.35 Lakhs is required.<\/li>\n\n\n\n<li>RO Machinery (1,000 LPH + UV + Ozone) \u20b93,00,000 \u2013 \u20b96,00,000 Estimated Cost (INR) Expense Head<\/li>\n\n\n\n<li>Semi-Automatic Bottle\/Jar Filling Machine: \u20b92,50,000 \u2013 \u20b95,00,000<\/li>\n\n\n\n<li>Micro &amp; Chemical Lab Setup In-house \u20b92,50,000 \u2013 \u20b94,00,000<\/li>\n\n\n\n<li>Civil Work, Tiling, Electricals, Piping: \u20b93,00,000 \u2013 \u20b96,00,000<\/li>\n\n\n\n<li>Licensing, BIS &amp; Consultant Fees \u20b92,00,000 \u2013 \u20b93,50,000<\/li>\n\n\n\n<li>Initial Raw Materials &amp; Working Capital Rs.2,00,000 \u2013 Rs.4,00,000<\/li>\n\n\n\n<li>Total Estimated Setup Capital Rs. 15,00,000 \u2013 Rs. 28,50,000<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Licenses_Needed_for_a_Reverse_Osmosis_Water_Treatment_Plant_Startup\"><\/span>Licenses Needed for a Reverse Osmosis Water Treatment Plant Startup<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Operating a commercial water plant without a license is illegal, and the penalties are severe. Approve these in this order:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Company Registration: <strong><a href=\"https:\/\/advisou.com\/services\/sole-proprietorship-registration\">Proprietorship<\/a>,<\/strong> <a href=\"https:\/\/advisou.com\/services\/limited-liability-partnership\"><strong>LLP<\/strong><\/a> or <a href=\"https:\/\/advisou.com\/services\/private-limited-company-registration\"><strong>Pvt Ltd registration<\/strong><\/a> with GST Number.<\/li>\n\n\n\n<li>CGWA NOC: Mandatory when water is extracted by a deep borewell.<\/li>\n\n\n\n<li>State Pollution Control Board (SPCB) NOC: Consent to Establish (CTE) and Consent to Operate (CTO) certificates for wastewater discharge.<\/li>\n\n\n\n<li>BIS Certification (ISI Mark under IS 14543): This is the most crucial step. Officials of the Bureau of Indian Standards (BIS) will inspect your plant, audit your in-house lab, and issue the license. Selling packaged drinking water without an ISI mark is illegal.<\/li>\n\n\n\n<li>FSSAI License: Food Safety and Standards Authority of India manufacturing license.<\/li>\n\n\n\n<li>Local Authority Permissions: Fire NOC, Factory License, <a href=\"https:\/\/advisou.com\/services\/trade-license-registration\"><strong>Trade License<\/strong><\/a> from your local municipal corporation or Gram Panchayat.<\/li>\n<\/ul>\n\n\n\n<p>Reverse osmosis water treatment plant setup in India involves meticulous planning and legal formalities. If you need professional help, <a href=\"https:\/\/advisou.com\/\"><strong>Advisou<\/strong><\/a> can help you create such a venture without any hassle. Contact us today to turn your corporate vision into a reality.<\/p>\n\n\n\n<p><strong>Also Read:<\/strong> <a href=\"https:\/\/advisou.com\/blog\/amazon-seller-registration-2026\/\">Amazon Seller Registration 2026: Process, Documents, Norms, and FAQs<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Q1. What is the ratio of pure water to wastewater in a commercial RO plant and what is the legal way of disposal of wastewater?<\/strong><\/p>\n\n\n\n<p>The plant produces an equal amount of pure water and high-TDS waste water. The reject water is supposed to be reused for secondary objectives like gardening or treated through an ETP instead of being discharged into public drains.<\/p>\n\n\n\n<p><strong>Q2. If I establish two factories or distribution hubs under the same brand name can I use one BIS license?<\/strong><\/p>\n\n\n\n<p>No, BIS is very strict on the &#8220;One Factory\/One License&#8221; rule. Each physical plant location will require its own separate application, independent testing laboratory, and individual facility inspection.<\/p>\n\n\n\n<p><strong>Q3. Is it possible to set up a small-scale commercial water plant on a residential property?<\/strong><\/p>\n\n\n\n<p>No, a water plant is an industrial unit and can not function on residential property. To obtain mandatory SPCB and BIS approvals, you must be located on commercial or industrial land.<\/p>\n\n\n\n<p><strong>Q4. If my raw water supply fails a chemical or radioactive residue test in the first BIS inspection, what will happen?<\/strong><\/p>\n\n\n\n<p>BIS will reject your application immediately. You&#8217;ll have to switch to another approved water supply or install specialized pre-treatment filters to remove the specific contaminants before you can request a re-test.<\/p>\n\n\n\n<p><strong>Q5. Is there any provision of central or state government financial subsidy for setting up of RO water plant ?<\/strong><\/p>\n\n\n\n<p>Yes you can get subsidy of 25 to 35% from Government on the projects of upto \u20b950 Lakhs under <strong>PMEGP scheme<\/strong><sup><a href=\"https:\/\/xn--i1bn6adp9emg4dcbcajdeflxp1gua1n7bt10abief.xn--11b7cb3a6a.xn--h2brj9c\/offerings\/schemes-and-services\/details\/prime-minister-employment-generation-programme-and-other-credit-support-schemes-1-MDMzETMtQWa\"><strong>[1]<\/strong><\/a><\/sup>. There are also loans without collateral available under the CGTMSE scheme by registering on the Udyam portal.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>India is richly endowed with water, yet suffers from a lack of potable water. It is a scary situation, but some see the crisis as a powerful business opportunity. The scarcity of drinking water has led many to set up a reverse osmosis water treatment plant in India. If you are in doubt whether to [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":7459,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1176],"tags":[1177,1178,1179,1180],"class_list":["post-7452","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-water-treatment-business-registration","tag-reverse-osmosis-water-treatment-plant","tag-ro-water-plant","tag-ro-water-plant-business","tag-water-purification-plant"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/posts\/7452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/comments?post=7452"}],"version-history":[{"count":7,"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/posts\/7452\/revisions"}],"predecessor-version":[{"id":7599,"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/posts\/7452\/revisions\/7599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/media\/7459"}],"wp:attachment":[{"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/media?parent=7452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/categories?post=7452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/advisou.com\/blog\/wp-json\/wp\/v2\/tags?post=7452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}