Using Strychnos potatorum Seeds as a Natural Coagulant in Flood Affected Areas of Bangladesh

The aim of this research is to find and show the effectiveness Strychnos potatorum seeds as a natural coagulant for purifying producing potable water in flood prone rural areas Bangladesh. potatorum, locally called ‘Nirmali’ or ‘Nirmala’, which was used Indian Subcontinent during stone ages but has slowly become forgotten. This carried out reintroduce ancient its floods, particularly As riverine country flooding devoid quality purification systems, coagulants like alum ferric sulfates are often although these synthetic chemicals have been found DBPs associated with certain health hazards. And so, replacing such will be beneficial cheap system populace. To prove effectiveness, various tests (pH, HCO3 , Cl, Na, K, Na2 CO3 NTU, TCU, Total Hardness (CaCO3 ), BOD, COD, CFU) were across around Dhaleshwari River (Nagarpur, Tangail) whether able replace commonly chemical provide drinkable affected people not. Experiments optimal dosage, flocculation settling time reusability seeds. reason behind selecting region purpose that soil tree characteristics area perfect planting growing trees they can easily distributed among populace when disaster hits. test results proved parameters comply WHO Drinking Water Standards. So, our shown highly effective it treat areas. initial estimation remarkably successful high yield targeted According calculations cost only 0.18 dollars 18 cents versus 0.25 most conventional method (Potash Alum) per liter treatment. project require trees, improve environment distributing them increase peoples’ awareness regarding plantation drinking safe water. Also, act replacement Bangladesh those biodegradable good whole there less waste. strengthen security well play an important role stopping climate change adversities.