Experimental analysis reveals watermelon seed powder reduces turbidity effectively, suggesting eco-friendly water treatment solutions.
This study presents the design and testing of a solar-powered coagulation unit aimed at evaluating the efficacy of watermelon seed powder (WMSP) as a natural coagulant for raw water treatment. The system was fabricated using a 12mm thick transparent glass tank (51×46×46 cm), equipped with a 12V DC motor, solar panel, and stirrer system for coagulant mixing. Laboratory Scale experiments were conducted to determine the optimal coagulant dosage and pH using jar tests on medium turbid water from an abandoned well. The results showed that WMSP at 0.2 g/L dosage and pH 7.0 effectively reduced turbidity to 2.23 NTU and color to 15 TCU, meeting WHO standards for drinking water. This study confirms the potential of WMSP as a viable, eco-friendly alternative to alum in water treatment.
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Adeyokunnu et al. (2025) studied this question.
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