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ABSTRACT
Turbidity, in the context of river water, pertains to the level of cloudiness or haziness caused by suspended particles like silt, clay, and organic matter. While it may seem trivial at first glance, high levels of turbidity can have significant impacts on the river ecosystem and its inhabitants. Coagulants play a vital role in water treatment by facilitating the aggregation of suspended particles, making them easier to remove. Ferric chloride, aluminum sulfate, and green plantain peel have emerged as potential coagulants, each offering unique characteristics. This study aims to evaluate and compare the efficacy of different coagulants (Ferric chloride, Aluminum Sulphate and green plantain peel) in reducing turbidity in river water. Coagulation test was conducted using magnetic stirrer unit. The turbid water was treated using coagulants (Ferric chloride, aluminium sulphate and green plantain peel) at different dosages (i.e. 2.5g and 5.0g) in 200 mL solution. Before the coagulant was added into beakers, the initial turbidity of the water sample was measured and recorded. Each coagulant was added to the water sample and was stirred for about 30 minutes at a speed of 121 rpm. Then, the magnetic stirring was stopped, and the solution was allowed to settle for approximately 2 hours. The final turbidity of each sample was measured and recorded. The performance of each coagulant was evaluated as turbidity reduction (%) by comparing the initial and final turbidity of each sample. Necessary discussion was made on which of the coagulants is most effective and ecofriendly based on their turbidity reduction percentage.
