Innovative Floating Wetlands Cleanse Polluted Lakes Using Upcycled Trash – One Green Planet

Nagdaha, once beleaguered by Pollution and nutrient overloads from agricultural runoff, now hosts these bioengineered islands. Dr. Pradhanang’s innovation harnesses the natural filtering capabilities of plants, which absorb pollutants like nitrates and phosphates through their roots, enhancing the lake’s overall health and supporting aquatic life by increasing dissolved oxygen levels.

The cost-effective nature of these wetlands addresses the economic constraints faced in many parts of the world. Each 4-foot by 6-foot mat mimics the size of a full-size mattress and can be linked with others to create larger clusters capable of treating extensive water areas. These systems have been installed in Nagdaha for nearly two years, forming five clusters of eight platforms each, showing significant reductions in harmful chemicals in the lake water.

The Small Earth Nepal, along with collaborators in India and Bangladesh, have been vital in applying this technology across South Asia, demonstrating the potential for widespread application. Their efforts include rigorous testing and adaptations to ensure the longevity and effectiveness of these floating wetlands.

Dr. Pradhanang’s initiative not only cleanses the water but also turns waste into a valuable resource, providing a double benefit. The platforms are particularly striking due to the choice of plants, like Indian shot and scarlet sage, which bloom into beautiful flowers adding aesthetic value to the once-grey waters.

Despite the ingenious use of local trash, the inclusion of materials like styrofoam poses a concern over microplastics. However, the ecological and health benefits of reduced water pollutants have been deemed to outweigh these potential risks. These systems represent a novel way to deal with pollution that could be replicated in other water bodies facing similar environmental challenges.

As Dr. Pradhanang continues to engage with communities and share her knowledge, the impact of these floating wetlands grows, demonstrating a sustainable approach to environmental management and water purification.

Please sign this petition to help eliminate microplastics from our water supply!

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