Operating Parameters Analysis in Alkaline Water Production using Rainwater Electrolysis Methode

Utilization of rainwater is an alternative for the availability of drinking water. The method used is in the form of electrolysis which results in the form of alkaline water. The purpose of this research is to analyze the parameters that affect the rainwater electrolysis process in order to produce optimal alkaline water. The research stage is to make a rainwater electrolysis reactor with a volume of 1.2 liters which is connected to a power supply. Analysis was carried out for the variables used at voltages of 5, 10, 15, 20 and 25V; electrolysis process time of 10, 20, 30, 40, 50, and 60 minutes; surface area of titanium electrodes 1, 2, 3, 4 and 5 mm2. The results of this study obtained alkaline water with a pH reaching 8.5 at a voltage of 25V, 60 minutes of electrolysis process time and a surface area of 5 mm2 titanium electrodes. The FTIR image also shows high absorption of O-H bonds, which indicates an increase in pH.