Engineering Clean Water.
Building a Sustainable Future.
Turnkey Water & Wastewater Treatment Solutions for Every Industry
Client & Partner Logos
Proudly partnered with industry leaders across 20+ countries. Our global network reflects engineering trust, quality, and consistent delivery at scale.
SIEMENS
Technology Partner
VEOLIA
Global Alliance
XYLEM
Pump Solutions
DUPONT
Membrane Tech
SUEZ
Water Technologies
PENTAIR
Filtration Systems
TATA PROJECTS
EPC Partner
L&T
Infrastructure
EVOQUA
Sustainable Solutions
KIRLOSKAR
Pump Division
Company Stats
Decades of precision engineering distilled into numbers. Every figure represents a commitment to water security, industrial excellence, and global reliability.
Years Experience
Over a decade of engineering water treatment solutions with deep domain expertise and continuous innovation in industrial filtration systems.
Projects Delivered
Successfully commissioned over 1500 turnkey water and wastewater treatment projects across diverse industrial sectors worldwide.
Countries Served
Our engineered systems operate across 20+ countries, delivering reliable water treatment solutions in diverse climatic and regulatory environments.
ISO Certifications
Certified with multiple ISO standards including 9001, 14001, and 45001, ensuring quality, safety, and environmental compliance across all operations.
Core Services
End-to-end water and wastewater engineering — from concept to commissioning. Every solution is custom-designed, factory-built, and globally compliant.
Water Treatment
Advanced raw water purification systems engineered for industrial, municipal, and commercial applications. Our multi-stage treatment plants remove contaminants, hardness, and pathogens to deliver water that meets WHO and ISO 10500 standards. Designed for 24/7 continuous operation with minimal energy footprint.
Wastewater Treatment
Comprehensive ETP, STP, and CETP solutions that transform industrial effluent and sewage into reusable water. Our biological and chemical treatment trains handle high COD, BOD, TDS, and heavy metal loads with consistent discharge compliance. Zero Liquid Discharge (ZLD) ready architectures for environmentally sensitive sites.
RO Plants
Industrial and commercial reverse osmosis systems from 100 LPH to 100,000 LPH. Our RO plants feature high-rejection membranes, energy recovery devices, and IoT-enabled monitoring for pharmaceutical, food, and power sector applications. Achieves up to 99% salt rejection with optimized recovery rates.
UF / MBR / MBBR Systems
Cutting-edge membrane and biological treatment technologies for the most demanding effluents. Our Ultrafiltration (UF), Membrane Bioreactor (MBR), and Moving Bed Biofilm Reactor (MBBR) systems deliver superior solid-liquid separation, compact footprints, and automated operation with remote monitoring capabilities.
Industrial Filtration
Complete range of pressure sand filters, activated carbon filters, micron cartridge filters, bag filter housings, and multi-media filters. Our filtration systems are fabricated in-house with SS304, SS316, MS, and FRP construction for chemical, textile, and food processing industries requiring precise particle removal.
Automation & AMC
PLC and SCADA-based fully automated treatment plants with real-time dashboards, SMS alerts, and predictive maintenance. Our Annual Maintenance Contracts (AMC) include 24x7 emergency support, scheduled preventive visits, spare parts management, and performance guarantee — ensuring your plant operates at peak efficiency year-round.
Product Showcase
Flagship systems engineered for zero-liquid discharge, ultra-pure process water, and industrial-scale wastewater recovery. Every unit is factory-tested and globally certified.
RO Plants
High-recovery reverse osmosis systems delivering up to 99.7% salt rejection. Engineered with energy-recovery devices and IoT-enabled remote monitoring for 24/7 reliability.
ETP / STP
Modular effluent and sewage treatment plants with MBBR, SBR, and MBR technologies. Designed for 95%+ BOD/COD reduction and zero-liquid-discharge compliance across industries.
Pressure Vessels
ASME-certified FRP and SS pressure vessels for membrane housing, multimedia filtration, and chemical storage. Rated up to 450 PSI with corrosion-resistant internal linings.
Dosing Systems
Precision chemical dosing skids with PLC-controlled metering pumps, HDPE tanks, and anti-siphoning valves. Fully automated for coagulant, antiscalant, and pH correction applications.
UF Systems
Hollow-fibre ultrafiltration membranes with 0.01 micron absolute rating. Removes bacteria, viruses, and suspended solids with 95%+ water recovery and automated backwash cycles.
MBR Systems
Submerged and side-stream membrane bioreactors combining activated sludge with ultrafiltration. Compact footprint, superior effluent quality, and fully automated operation for reuse applications.
Industries Served
From heavy manufacturing to life sciences—our water treatment systems are trusted across 20+ sectors. Every solution is purpose-built for the unique effluent profile and purity demands of your industry.
Textile
Advanced dye recovery and zero-liquid-discharge systems for cotton, polyester, and denim processing. Our MBR and RO technologies reduce water consumption by up to 95% while meeting stringent discharge norms.
Chemical
Corrosion-resistant treatment trains for acidic, alkaline, and solvent-laden effluents. Our PVDF and PP-based UF systems handle aggressive pH ranges while delivering consistent permeate quality for reuse or safe discharge.
Pharmaceutical
USP-grade purified water and WFI systems with full validation support. Our multi-effect distillation and electro-deionization units comply with FDA, EMA, and WHO cGMP guidelines for critical utility water.
Food & Beverage
Hygienic stainless-steel systems for ingredient water, CIP, and high-strength organic wastewater. Our dissolved air flotation and anaerobic digesters recover biogas while producing irrigation-grade effluent from processing waste.
Dairy
Whey concentration and lactose recovery through custom membrane filtration cascades. Our spiral-wound UF and NF systems reduce BOD loads by over 90% while recovering valuable milk solids for secondary revenue streams.
Power Generation
High-purity boiler feed water and cooling tower blowdown recovery for thermal, nuclear, and combined-cycle plants. Our high-recovery RO systems minimize raw water intake while preventing silica scaling in HRSG units.
Oil & Gas
Produced water treatment and refinery wastewater systems rated for hazardous-area operation. Our induced gas flotation and nutshell filtration packages achieve
Steel & Mining
Heavy-metal precipitation and acid mine drainage neutralization with sludge dewatering. Our high-rate clarifiers and filter presses handle up to 500 m³/hr of suspended solids while recovering process water for reuse in ore processing.
Automotive
Phosphating rinse water recycling and paint-shop wastewater treatment with closed-loop recovery. Our tubular UF systems remove emulsified oils and suspended solids, enabling direct reuse of degreasing baths and reducing chemical consumption.
Hospitals
Dialysis-grade RO plants and infectious liquid waste sterilization systems. Our heat-sanitizable distribution loops and UV-ozone polishing ensure bacteria-free water for CSSD, laboratory, and patient-care applications 24/7.
Hospitality
Compact packaged STPs and greywater recycling systems for hotels, resorts, and convention centers. Our submerged MBR units fit underground parking footprints and produce odor-free, crystal-clear water for landscaping and toilet flushing.
Semiconductor
Ultra-pure water systems delivering 18.2 MΩ·cm resistivity for wafer fabrication. Our twin-bed ion exchange and vacuum degasification modules meet SEMI F63 guidelines with
Why Choose Us
Four pillars define our engineering DNA—decades of mastery, complete manufacturing control, turnkey project delivery, and relentless support that never sleeps.
14+ Years Legacy
Over a decade of engineering excellence in water and wastewater treatment. We have successfully delivered 1500+ projects across India and international markets, building deep domain expertise in every treatment technology. Our legacy is built on consistent quality, on-time delivery, and long-term client partnerships that span years.
In-house Manufacturing
Unlike competitors who outsource fabrication, we own and operate a state-of-the-art manufacturing facility. Every pressure vessel, SS tank, MS tank, FRP tank, skid assembly, and piping system is fabricated under our direct quality control using ISO-certified processes. This means tighter tolerances, faster lead times, and complete traceability from raw material to finished system.
Turnkey EPC Capability
We are a full-spectrum EPC contractor—not just an equipment supplier. From concept engineering and detailed design through civil works, fabrication, installation, commissioning, and operator training, we deliver fully operational plants under a single point of responsibility. Our turnkey model eliminates coordination gaps, reduces project risk, and ensures seamless handover of treatment systems that perform from day one.
24×7 Expert Support
Water treatment plants run 24 hours a day—and so does our support. Our dedicated team of process engineers and service technicians is available around the clock for troubleshooting, remote diagnostics, emergency site visits, and AMC services. Clients across India rely on our rapid response commitment: we answer calls within minutes and deploy field teams within hours when critical issues arise.
Our EPC Process
From the first handshake to a fully commissioned plant, our eight-stage engineering lifecycle transforms complex water challenges into operating assets—predictably, transparently, and on time.
01. Consultation
Deep-dive discovery with your engineering team to map water quality, capacity targets, site constraints, and regulatory requirements before a single drawing begins.
02. Design
Process flow diagrams, P&IDs, 3D plant layouts, and hydraulic modelling crafted by senior engineers using industry-leading simulation software for guaranteed performance.
03. Engineering
Detailed mechanical, electrical, and instrumentation engineering with material selection, stress analysis, and BIM coordination for seamless multi-discipline integration.
04. Manufacturing
In-house fabrication of pressure vessels, skids, tanks, and piping spools under ISO 9001 quality control with full traceability and factory acceptance testing.
05. Installation
Site mobilisation by certified rigging and erection crews following method statements and JSA. Mechanical installation, equipment setting, and interconnecting piping executed to millimetre precision.
06. Commissioning
Systematic dry and wet commissioning, loop checks, chemical dosing calibration, and performance trials against guaranteed parameters with your operations team alongside.
07. Handover
Complete documentation package including as-built drawings, O&M manuals, spare parts lists, and training sessions for your plant operators ensuring confident autonomous running.
08. AMC & Support
Annual maintenance contracts with SLA-backed response times, remote monitoring, consumable supply, and plant health audits to maximise uptime and asset life across decades.
Frequently Asked Questions
Everything you need to know about our water and wastewater treatment solutions, project delivery, and ongoing support.
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What industries does Rain Power Filtration serve?
We serve a diverse range of industries including textile mills, chemical plants, food and beverage processing, pharmaceutical manufacturing, hospitals, hotels, and large-scale manufacturing units. Our solutions are custom-engineered to meet the specific effluent characteristics and regulatory requirements of each sector.
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What is an ETP and why is it essential for my factory?
An Effluent Treatment Plant (ETP) is a system designed to treat industrial wastewater before it is discharged into the environment or reused. It removes harmful contaminants, chemicals, and suspended solids, ensuring compliance with pollution control board norms. Without a properly designed ETP, factories face heavy fines, legal action, and reputational damage.
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What is the difference between STP and ETP?
An STP (Sewage Treatment Plant) treats domestic sewage and greywater from residential complexes, commercial buildings, and municipalities. An ETP (Effluent Treatment Plant) handles industrial process wastewater containing chemicals, dyes, heavy metals, and other toxic substances. The treatment technologies and process stages differ significantly based on the influent characteristics.
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What is ZLD and when is it required?
Zero Liquid Discharge (ZLD) is an advanced treatment process that recovers every drop of water from industrial effluent, leaving zero liquid waste for disposal. It is mandated by pollution control authorities for highly polluting industries located in critically polluted areas or where water bodies are sensitive. ZLD typically involves membrane filtration, evaporation, and crystallization stages.
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What is MBR technology and how does it improve treatment?
Membrane Bioreactor (MBR) technology combines conventional biological treatment with membrane filtration. It produces exceptionally high-quality treated water suitable for reuse, reduces the plant footprint by up to 50% compared to conventional systems, and delivers consistent performance regardless of feed fluctuations. MBR is ideal for projects where space is limited or high-quality reuse water is essential.
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How long does it take to design and install a treatment plant?
Timelines vary based on plant capacity, complexity, and site conditions. A standard ETP or STP project typically takes 3 to 6 months from order confirmation to commissioning. Large-scale ZLD or MBR projects may extend to 8-12 months. We provide a detailed project schedule during the engineering phase and keep you informed at every milestone.
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Do you provide AMC and after-sales support?
Yes, Annual Maintenance Contracts (AMC) are a core part of our service offering. We provide comprehensive after-sales support including routine inspections, preventive maintenance, spare parts management, operator training, and 24/7 emergency breakdown assistance. Our service teams are stationed across major industrial hubs for rapid response.
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What are RO and UF systems used for in water treatment?
Reverse Osmosis (RO) removes dissolved salts, heavy metals, and microorganisms using semi-permeable membranes, producing high-purity water for boiler feed, process use, and drinking. Ultrafiltration (UF) removes suspended solids, bacteria, and viruses with slightly larger pore membranes, often serving as pretreatment for RO or as a standalone clarification step. Both are critical in advanced treatment trains.
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How do you ensure compliance with Gujarat Pollution Control Board norms?
Every plant we design is benchmarked against the latest GPCB and CPCB discharge standards. Our engineering team stays updated on regulatory changes and incorporates adequate safety margins in treatment capacity. We provide commissioning reports, third-party lab test results, and assistance during consent-to-operate renewals to ensure seamless compliance.
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Can you handle turnkey projects from concept to commissioning?
Absolutely. Turnkey EPC delivery is our specialty. We manage the complete lifecycle—site survey, process design, detailed engineering, equipment manufacturing, civil works, installation, commissioning, and operator training—under a single contract. This approach eliminates coordination gaps, reduces project risk, and accelerates time-to-operation for our clients.
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What makes Rain Power Filtration different from other water treatment companies?
Our differentiation lies in three pillars: deep process engineering expertise honed over hundreds of installations, an in-house manufacturing facility that ensures quality control and faster delivery, and a genuine commitment to lifecycle partnership rather than transactional sales. We design plants that operators love to run and owners trust for decades.
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How can I get a quote for my project?
Getting a quote is straightforward. Reach out via our contact form, email us at info@rainpower.in, or call +91 97277 86892. Share basic details about your industry, wastewater volume, and treatment goals. Our technical team will schedule a site visit or consultation call, analyze your requirements, and deliver a detailed techno-commercial proposal within 5-7 working days.
Frequently Asked Questions
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Rain Power Filtration · Ahmedabad · Gujarat · India
Rain Power Filtration is a leading manufacturer and turnkey EPC solution provider for Industrial Water Treatment Plants, Wastewater Treatment Plants, Reverse Osmosis Systems, Ultra Filtration Systems, STP, ETP, MBR, MBBR, ZLD, DM Plants, Pressure Vessels, Industrial Fabrication, Automation, and Water Engineering Solutions.
Contact
Bakrol
Ahmedabad – 382435
Gujarat, India
9:00 AM – 7:00 PM
