Filtering leaves and debris from rainwater or stream water is essential but difficult. Existing filters often clog—especially with decomposing leaves that stick to surfaces—and they fail to maintain clean flow in pipes or power small turbines. Whether in rural areas using stream water or urban rooftops collecting rain, leaves, plastic, and paper can build up, reduce filtration efficiency, cause clogging, and interrupt water reuse systems.
The Solution
This invention introduces a self-cleaning, rotating filter that uses water's natural flow to spin a cylindrical mesh filter. As water enters, it hits one side of the mesh, generating rotation. This movement forces stuck debris off the mesh using centrifugal force, significantly reducing clogging. A built-in turbine helps maintain consistent rotation, even under heavy debris load. The system includes a settling chamber to capture fine particles like sand or grit.
What’s New
Unlike traditional static filters or complex motor-driven systems, this design uses the water’s own flow to power the filter’s rotation, making it energy-efficient and mechanically simple. The addition of a turbine increases torque to keep rotation steady, especially when heavy or sticky materials are present. This combination ensures debris—especially sticky decomposing leaves—is purged quickly and reliably.
Tangible Benefits
- Prevents clogging of pipes and water channels.
- Maintains clean water for irrigation, domestic use, or micro hydro power.
- Avoids manual cleaning and reduces maintenance.
- Protects small aquatic life during stream water collection.
- Suitable for varying water flow conditions.
Broader Impact
This device enables sustainable water reuse in both urban and rural settings. It improves rainwater harvesting, protects downstream systems, supports micro energy generation, and avoids harming aquatic ecosystems. It offers a low-cost, eco-friendly solution to a global water management challenge.