Ceramic Membrane Gravity Filtration System for Household-Level Drinking Water Treatment in Rural Areas

Abstract

Access to safe drinking water remains a major challenge in many rural regions, where limited infrastructure and inadequate treatment facilities contribute to waterborne diseases and public health concerns. This study investigates the performance of a ceramic membrane gravity filtration system for household-level drinking water treatment under rural operating conditions. The research focuses on evaluating contaminant removal efficiency, filtration performance, and operational sustainability without the requirement for external energy input. Experimental analyses were conducted to examine the influence of membrane pore structure, filtration rate, water turbidity, microbial contamination level, flow conditions, and cleaning frequency on treatment effectiveness and membrane durability. Results demonstrated that the ceramic membrane gravity filtration system effectively reduced suspended solids, turbidity, pathogenic microorganisms, and particulate contaminants from untreated water sources, producing water that met acceptable drinking quality standards. The porous ceramic membrane exhibited stable filtration characteristics and reliable operation under varying water quality conditions. The gravity-driven process provided low-cost and energy-efficient treatment suitable for decentralized household applications in resource-limited communities. Kinetic and hydraulic evaluations revealed that membrane pore distribution and fouling behavior strongly influence filtration efficiency and long-term system performance. Periodic cleaning and maintenance improved membrane lifespan and sustained contaminant removal capacity during continuous operation. Comparative assessment with conventional household treatment methods indicated that ceramic membrane gravity filtration offers advantages such as simple operation, low maintenance requirements, minimal chemical usage, and enhanced microbial removal efficiency. The findings highlight the potential of ceramic membrane filtration technology as a sustainable and affordable solution for improving rural drinking water quality and supporting public health protection in developing and underserved regions.