Virtual Booth

The hydraulic efficiency of flocculation in water treatment relies on effective flow control via baffles; however, traditional timber baffles suffer from biological deterioration, warping, and frequent maintenance issues that compromise process stability. To address these limitations, this study evaluated aluminium alloy 6061 (Al-6061) and polypropylene (PP) as alternatives to enhance structural durability, corrosion resistance, and hydraulic performance by characterizing their chemical and mechanical resistance, evaluating technical and environmental feasibility, and identifying the optimal material through empirical testing. Comparative experiments were conducted using two identical flocculation tanks equipped with Al-6061 and PP baffle panels to treat chlorinated water from the Simpang Renggam Water Treatment Plant in Johor, assessing parameters including turbidity, pH, TDS, COD, BOD, and residual aluminium. Results demonstrated that both materials significantly improved water quality and achieved National Water Quality Standards (NWQS) Class I–II status, with Al-6061 offering superior turbidity and BOD reduction while PP exhibited greater pH stability and chemical inertness. Ultimately, aluminium 6061 is recommended for high-efficiency treatment demands, whereas polypropylene is optimal for long-term installations requiring minimal maintenance.