Banana peduncle charcoal was found to be an effective adsorbent for the removal of iron from groundwater. The developed filtration system reduced iron concentration from 7.17 mg/L to less than 0.1 mg/L, meeting both IS 10500:2012 and WHO drinking water standards. In addition to iron removal, the system improved turbidity, colour, and other water quality parameters. Due to its low cost, local availability, and environmental sustainability, banana peduncle charcoal has considerable potential for application in household water treatment systems in iron-affected rural areas. Further studies may focus on long-term performance, regeneration, and field-scale implementation of the technology.
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