Rainwater Harvesting with Smart Filtration System
Title
Smart Rainwater Harvesting System with Real-Time Filtration and Quality Monitoring
for Sustainable Water Management
Objective
To design and implement an integrated rainwater harvesting system enhanced with smart
filtration and real-time water quality monitoring, aimed at reducing dependence on
groundwater, promoting water sustainability, and providing safe, clean, and reusable water
for domestic, institutional, and agricultural use.
Background and Rationale
Water scarcity and urban flooding are pressing issues in many regions due to:
• Over-extraction of groundwater
• Inadequate urban drainage
• Limited access to safe, potable water
Conventional rainwater harvesting systems are often underutilized due to:
• Poor water quality
• Lack of real-time monitoring
• Manual maintenance requirements
This project addresses those limitations by integrating IoT-enabled smart filtration to
improve usability, safety, and efficiency of rainwater collection.
Scope of the Project
This project will:
• Collect rainwater from rooftops and open surfaces
• Filter the collected water using multi-stage smart filtration (gravel, sand, activated
carbon, UV, or membrane)
• Monitor water quality in real time (pH, turbidity, TDS, microbial presence)
• Store filtered water in underground or overhead tanks
• Automate flow control, overflow alerts, and usage tracking using smart sensors
Key Features
• IoT-based water quality sensors (TDS, pH, turbidity)
• App-based monitoring dashboard for users
• Automated backwash or self-cleaning filters
• Rain prediction integration to optimize tank levels
• Overflow diversion system to groundwater recharge or storm drains
Applications
• Urban buildings and apartments
• Schools, colleges, and hospitals
• Offices and industrial campuses
• Smart villages and rural water schemes
• Public parks and community centers
. Budget Estimate
Item Cost Estimate
Rooftop catchment system Rs 1,70,000
Smart filtration unit Rs 3,00,000
Storage tank (10,000L) Rs 1,30,000
IoT sensors and controllers Rs 1,70,000
Plumbing, piping, installation Rs 1,30,000
App/dashboard integration Rs 85,000
Training & maintenance setup Rs 45,000
Total Rs 10,30,000
Conclusion
This proposal presents a scalable, tech-enabled rainwater harvesting solution that not only
captures and stores rainwater, but also ensures its quality, safety, and usability through
smart filtration and monitoring. It supports broader goals of water security, sustainability,
and climate adaptation—making it ideal for urban and rural settings alike.
