Solar Assisted Water Purification System Using IoT

This study details the design and development of a solar-assisted, IoT-enabled water purification system utilizing monofilament woven fluorinated ethylene propylene filter pouches. The filter is fabricated as a porous pouch filled with activated carbon and is modularly stacked in a cylindrical filtration chamber. Water flows through this chamber using a twenty-four- volt pump, ensuring effective removal of physical and chemical impurities. To regulate the pH of the treated water, a post-filtration chamber with calcite and acidic ceramic media is employed, while ultraviolet light is applied to eliminate pathogenic microorganisms. The system operates entirely on solar energy, which enhances its off-grid applicability. A microcontroller-based IoT module, ESP32, monitors key parameters including pH, total dissolved solids, and flow rate, with values uploaded to a cloud server for remote tracking and data logging. Pre-filtration with a sediment filter removes coarse particles before the fluorinated ethylene propylene stage. The proposed system demonstrates high purification efficiency, low maintenance requirements, and adaptability for both household and community-level applications. It provides a sustainable, modular, and data-driven solution for decentralized water treatment, particularly in rural settings.