Duckweed: Small plant, big impact on wastewater treatment.

Nature's green filter for a cleaner tomorrow

Duckweed plants, primarily from the Lemnaceae family, float on the surface of wastewater ponds.

Despite its tiny size, duckweed is a biological powerhouse known for its rapid growth rate and high nutrient uptake efficiency.

They absorb nutrients and contaminants from the water, which helps in purifying it.

These systems are effective in reducing total solids, biochemical oxygen demand (BOD), and chemical oxygen demand (COD). For instance, a study showed a significant reduction in BOD (93.5%) and COD (73.2%) after seven days of duckweed growth.

DWT systems can be designed similarly to conventional lagoon systems but with modifications to prevent planktonic algal growth. They can include deep facultative ponds for solids removal and stabilization ponds for further purification

Duckweed-Based Wastewater Treatment Systems

Duckweed, in collaboration with aerobic and anaerobic bacteria, offers a promising and sustainable solution for wastewater treatment. Its ability to rapidly remove nutrients and organic pollutants.

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