1 Department of Civil Engineering, Faculty of Engineering, Ajayi Crowther University, Oyo, Oyo State, Nigeria.
2 Department of Civil Engineering, Faculty of Engineering and Technology, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria.
World Journal of Advanced Engineering Technology and Sciences, 2025, 16(03), 526-530
Article DOI: 10.30574/wjaets.2025.16.3.1364
Received on 19 August 2025; revised on 25 September 2025; accepted on 27 September 2025
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.
Watermelon Seed Powder; Natural Coagulant; Solar-Powered Coagulation Unit; Water Treatment; Turbidity Removal
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Adeyokunnu, A.T and Olaniyan, S.O. Design of Solar-Powered Coagulation Unit for Watermelon Seed Powder (Citrullus lanatus) Coagulant in Water Treatment. World Journal of Advanced Engineering Technology and Sciences, 2025, 16(03), 526-530. Article DOI: https://doi.org/10.30574/wjaets.2025.16.3.1364.