DEVELOPMENT OF FAST, CONTROLLED, AND HIGH ACCURACY DEAD-END BASED SYSTEM TO EVALUATE AND ANALYZE THE FLUX AND CLOGGING MECHANISM OF WATER FILTER MEMBRANE

• Main Author: Shaf, Rachman
• Format: Final Project
• Language: Indonesia
• Subjects: Fisika
• Online Access: https://digilib.itb.ac.id/gdl/view/45546
• Institution: Institut Teknologi Bandung

In the water filtering process, flux holds one of the important factors to determine the quality. The flux of the water filter membrane can be measured by measuring the amount of water through the area membrane in a unit of time. The dead-end method is one of the simplest methods in determining the number the flux of a membrane. The process of determining the flux is by flowed a quantity of water through the membrane on perpendicular over the membrane area. By combining this process with an electrical component with high accuracy and the controlled system will produce more accurate data to determine the quality of the membrane in the water filtering process also in the clogging mechanism of the membrane in the particulate water test. This article will discuss the result of the filtering quality test using the combination of the dead-end method with the high accuracy and controlled electrical system in the water filter process and the analysis of the clogging mechanism of the membrane from the flux data in a unit of time. The system that has been built shown good results in the calibration process of the air pressure regulator and the sensor with a linear regression value over 0.9991 with the highest value of 1 on the calibration of the mass sensor. This system has the greatest accuracy with an error Full-scale of 0,35% against load-cell comparisons with calibrated digital scales and a minimum mass that can be detected at 0,03 grams with the most stable value over 0.5gram. In testing process this system shown the differences of the flux in various membranes (PTFE Membrane Filter Test (IHPF, IPF) Wathman Glass Fiber Membrane) as well as the influence of pore size, porosity, membrane type, membrane thickness on its effect on the increase in the value of the water pressure being flowed and the clogging mechanism of antacid particles (Mylanta).