Percolation Wells with Active Filtering

Many Indian cities face recurring water shortages and flooding, often at different times of the year. Percolation wells offer a regenerative solution by recharging groundwater and reducing surface runoff. Typically dug in areas where rainwater accumulates, these wells guide water into the earth, replenishing aquifers. To ensure water quality, active filtering layers can be introduced at the well’s inlet. One common method involves placing sand, gravel, and charcoal layers in a cement or masonry funnel that directs water into the well. The materials are chosen for their longevity and local availability, making them inexpensive and straightforward to maintain.

Regular desilting of the well and cleaning of the filtering media keeps the system efficient. Percolation wells can also be integrated with road drainage systems by designing channels that guide rainwater from streets into the filtration system. Community awareness is crucial; residents and shop owners need to avoid dumping waste into storm drains, ensuring that the water entering the well is relatively clean. Over time, this approach replenishes the water table, helps reduce urban flooding, and creates a vital resource for communities facing water scarcity. {Source:https://th-i.thgim.com}