India's First Zero-Discharge Public Toilet is operational at Lumbini Park, Hyderabad
Gates Foundation India delegates witnessed the historic B-CRT Unit #1 launch
Gazette Compliant Infrastructure
ReFlow Toilets operates 50 locations in full compliance with the Government of India's Liquid Waste Management Rules 2024 (Gazette CG DL-E-08102024-257748).
Gazette Compliant
CG DL-E-08102024-257748
50+ Locations
Government Approved Sites
Telangana Rising
Official Partner
India's First Zero-Discharge Public Toilet is Live
B-CRT Unit #1 at Lumbini Park, Hyderabad. The culmination of the Gates Foundation's Reinvent the Toilet Challenge, now deployed at scale. Gates Foundation India delegates and sanitation experts gathered to witness this breakthrough in public infrastructure.
B-CRT Unit #1 at Lumbini Park
Gates Foundation India delegates and sanitation experts inspecting the world's most advanced public toilet
This deployment represents the first at-scale implementation of Gates Foundation's Reinvent the Toilet technology in India. Ready to transform sanitation in your district?
Trusted by Governments & Global Leaders
Certified, compliant, and recognized for excellence in sanitation infrastructure
Gates Foundation
Reinvented Toilet Challenge
ISO30500 Certified
International Water Quality Standard
Gazette Compliant
50 Government-Approved Locations
Telangana Rising
Government Partner
WASH Innovation Hub
Global Innovation Network
Design & Innovation in public toilets that's revolutionized WASH
Designed to end open defecation, uplift streets, communities, engage employment, prevent urban waste and change the narrative around public toilets.
ReFlow Toilets is not only self sustainable, but leaves almost no waste into the earth
Key Features of ReFlow Toilets
No sewage system
Treated on site in the ReFlow unit
Off‑Grid
Self‑Sustaining
Runs entirely on-site with solar power
Modular & Scalable
Prefabricated units snap together seamlessly to expand capacity as needed.
No water released into drainage systems
All waste treated on site, and reused
Circular economy system
All waste processed in house
Revenue Generating - Self sustainable
With patents of the LooCafe model circular economised
Treatment system in unit
No extra water required
A $1 Billion Mission to
Reinvent the Toilet
Global Manufacturing & Training Hub
Team ReFlow at EcoSan - Yixing, Jiangsu, China.
Leading manufacturing & technical training on the B-CRT to set new global standards for the world.
Watch & Learn
Georgia Tech, partner of the Gates Foundation, speaks about reimagining the toilet.
The following organizations support this program. The listing of corporate logos on this site does not constitute an endorsement by ReFlow.
Our Impact at Scale
Transforming public sanitation infrastructure across India
The B-CRT
Blackwater Circular Reinvented Toilet
Any waste water that goes inside comes out ISO30500 Water standard. Treatment happens entirely inside the container. Needs 10,000 litres of water to start up, lasts for years without external requirement.
The most advanced large-scale deployment of the Reinvented Toilet Project ever.
Hyderabad & Navi Mumbai Q1 2026
"An Engineering Marvel"
"The Deployment of decades of work by talented people in WASH"
"A step towards making the air conditioner level invention for toilets"
Watch: A Technical dive through into the B-CRT
A Standard ReFlow Unit
ReFlow is an Invention
Like how air conditioners went from room-sized machines to wall units, like how computers filled buildings before fitting in pockets— ReFlow is part of that same journey for sanitation technology.
Every Great Technology Started Big
Computers
Room-sized → Desktop → Laptop → Pocket
70 yearsAir Conditioners
Industrial units → Split systems → Portable
80 yearsRefrigerators
Ice houses → Commercial → Home appliance
100 yearsReFlow B-CRT
Container unit → Compact → Scalable modules
Starting nowODF++ Requires On-Site Treatment
Swachh Bharat Mission 2.0 mandates that cities achieve ODF++ status—meaning faecal sludge must be safely managed and treated with no discharge to water bodies. Yet 56% of India's centralized Sewage Treatment Plants sit under-utilized. The future is decentralized.
Zero Liquid Discharge Rules (Oct 2025)
New regulations mandate zero effluent discharge. ReFlow is already compliant.
AMRUT 2.0: 20% Water Reuse Target
Cities must meet 20% of water demand from treated wastewater. B-CRT enables this.
FSSM Policy 2017: On-Site Treatment
India's national policy explicitly supports on-site sanitation and treatment systems.
Where Sewers Will Never Reach
Only 21% of India's sewage is currently treated. Centralized systems can't scale fast enough.
Pilgrimage Sites
Remote temples, dargahs, and religious circuits with millions of annual visitors
Tourist Destinations
Hill stations, beaches, national parks where laying sewers is impossible or prohibited
Highways & Rest Stops
India's 1.5 lakh km highway network needs sanitation without municipal sewerage
Construction Sites
Temporary but critical—worker welfare mandates require sanitation facilities
Events & Melas
Kumbh Mela, festivals, exhibitions—massive temporary populations
Peri-Urban Areas
Growing townships outside municipal limits, ahead of infrastructure
Shaping the Standard Together
ISO 30500 was developed by experts from 48 countries. ReFlow works with global leaders to bring this standard to India.
Gates Foundation
$200M+ invested since 2011. $370M committed through 2026. The Reinvent the Toilet Challenge created B-CRT.
ASCI
Administrative Staff College of India—developing policy frameworks for government adoption of reinvented toilets.
WASH Innovation Hub
Bridging technology and policy. Testing, validating, and scaling sanitation innovations for India.
ISO 30500: The Global Standard
Non-sewered sanitation systems — Prefabricated integrated treatment units that collect, convey, and fully treat waste on-site for safe reuse or disposal. Published October 2018, updated July 2025. ReFlow's B-CRT is fully certified.
Our Partner Network
Through LooCafe, ReFlow is connected to a powerful network of partners driving sanitation innovation. Our R&D is inspired by this ecosystem—and the $148 billion opportunity in India's Sanitation Economy by 2030.
T-Works
PartnerIndia's largest prototyping center. Telangana's innovation hub where hardware startups build and test products at scale.
ASCI
PartnerAdministrative Staff College of India—developing policy frameworks and supporting reinvented toilet adoption across Indian cities.
WASH Innovation Hub
PartnerPlatform at ASCI with GIZ and Telangana Government promoting climate-resilient WASH solutions. Supporting SDG 6 & SDG 11.
Gates Foundation
R&D OriginThe Reinvent the Toilet Challenge created B-CRT technology. $200M+ invested since 2011, $370M committed through 2026.
Toilet Board Coalition
EcosystemPioneering the Sanitation Economy concept—111 SMEs graduated, $40M unlocked, 5.7M people impacted daily globally.
SuSanA
EcosystemSustainable Sanitation Alliance—global network since 2007 advancing SDG 6. India Chapter established 2016.
Why Partner Now?
Policy is moving faster than infrastructure. Be compliant before mandates hit.
- ODF++ certification without sewerage dependency
- Qualify as "Aspirational Toilet" with 40% VGF
- Meet AMRUT 2.0 water reuse targets
- Access technology backed by $200M+ R&D
- Serve locations where sewers will never reach
- Join the working group shaping India's sanitation future
A $2.46 billion opportunity.
India's decentralized wastewater treatment market is growing at 10.8% CAGR. B-CRT is positioned at the intersection of government mandates and market demand.
Government Program Alignment
Swachh Bharat Mission
Focus on sustainable sanitation technology and faecal sludge management. B-CRT meets all sustainable tech requirements.
Urban Water & Sewerage
300+ cities need decentralized treatment solutions where sewerage is incomplete. B-CRT explicitly encouraged.
IoT-Enabled Infrastructure
Requires IoT monitoring, real-time tracking, digital payments. B-CRT's 35+ sensors meet all mandates.
Reinvent the Toilet Challenge.
Since 2011, the Bill & Melinda Gates Foundation has invested $200M+ in next-generation toilet technology. B-CRT represents the commercial realization of this vision.
B-CRT (Yixing/ReFlow)
Caltech Solar Toilet
Cranfield Nano Membrane
Duke Supercritical Water
800+ Units Deployed in China
The B-CRT technology was developed by Yixing Eco-Sanitary Manufacturing as part of the Gates Foundation's Reinvent the Toilet Challenge. With 800+ successful deployments in China, ReFlow is bringing this proven technology to India through exclusive licensing partnership.
Built different. Built better.
Every specification designed to exceed industry standards. Here's how B-CRT outperforms conventional treatment systems.
8 Treatment Stages
Most systems use 3-5 stages. Our comprehensive 8-stage biological process achieves superior output quality.
98% Water Recovery
Leading systems recover 70-85% at best. B-CRT's 98% recovery rate means virtually zero water waste.
True Off-Grid (72+ hours)
Grid-dependent systems fail during outages. Our solar + LiFePO4 battery system provides 72+ hours autonomy.
ISO 30500 Certified
Only 3 systems globally have achieved certification. Most competitors are still pending or pursuing lesser standards.
Compact 15-30 sqm Footprint
Conventional systems require 50-100+ sqm. Container design enables deployment where others can't fit.
2-4 Week Installation
Built infrastructure takes 3-6 months. Pre-fabricated B-CRT deploys in weeks, not months.
The Bottom Line
B-CRT delivers 40% more water recovery, 60% smaller footprint, and 75% faster deployment than conventional decentralized treatment systems — with the only ISO 30500 certification in commercial operation in India.
Maximize Your Infrastructure Investment
Build
ReFlow Toilets
Sustainable, self-cleaning public sanitation infrastructure designed for modern cities.
- Zero Discharge
- Solar Powered
- IoT Enabled
Protect
Ixora Security
Advanced security solutions to safeguard your infrastructure and ensure public safety.
- 24/7 Monitoring
- AI Surveillance
- Rapid Response
Maintain
Ixora FM
Comprehensive facility management to keep your assets clean, functional, and valuable.
- Professional Cleaning
- Preventive Maintenance
- Asset Lifecycle Mgmt
One Partner. Complete Peace of Mind.
Get a Bundled QuoteMaximize Your Infrastructure Investment
Beyond sanitation: Ixora Group offers integrated security and facility management services to protect and optimize your entire public infrastructure ecosystem.
Bundled Infrastructure Package
Deploy ReFlow toilets + Ixora Security + Facility Management together and save 15-25% on total infrastructure costs.
Ixora Security Services
Protect your sanitation infrastructure investment with professional 24/7 security monitoring and access control.
Key Benefits:
- ✓CCTV surveillance integration
- ✓Access control systems
- ✓24/7 monitoring and response
- ✓Vandalism prevention
Ixora Facility Management
Comprehensive facility management for your entire public infrastructure - not just sanitation.
Key Benefits:
- ✓Multi-site maintenance coordination
- ✓Cleaning and housekeeping
- ✓Technical services (HVAC, electrical)
- ✓Integrated vendor management
Single Vendor Accountability
One point of contact for all infrastructure services - sanitation, security, and facility management.
Cost Optimization
Bundled pricing reduces procurement complexity and lowers total cost of ownership by 15-25%.
Unified Reporting
Consolidated dashboards for all services - track performance, compliance, and costs in one place.
Watch ReFlow Concept Videos →
Zero Ongoing Municipal Costs
ReFlow units operate on a self-sustaining model with three revenue streams, ensuring long-term viability without government subsidies.
Partnership Operations
Municipal partnerships with trained operators who manage daily operations. Partnership fees cover maintenance and operations without ongoing government subsidies.
Advertisement Revenue
Legal advertisement spaces on all four exterior walls and interior panels provide consistent revenue. Data-driven ad placement maximizes advertiser ROI while covering operational costs.
Technology Licensing
Our patented facility management technology extends beyond ReFlow units, creating additional revenue streams through licensing and digital community monetization.
FAQ
Got questions? Here are our most frequently asked questions