Effectiveness of Well Water Treatment Method with Electrocoagulation, Coagulation, and Electrocoagulation-Coagulation Using Alum as Coagulant

Abstract

Abstract All This study compares the effectiveness of well-water treatment with coagulation, electrocoagulation, and electrocoagulation-coagulation methods in Kubu Raya, West Kalimantan, following the quality standards of the Minister of Health Regulation No. 32 of 2017. This study used an alum and was varied by testing the parameters of turbidity, color, TDS, Fe, Mn, and pH. The study results on the mass variation of alum showed an increase in pH, and increases in TDS, color, turbidity, Fe, and Mn. With the electrocoagulation method, the efficiency results of increased pH were 3.88%, 22.22%, 32.77%, and 42.59%; decrease in TDS 46.34%, 54.07%, 86.79%, and 114.75%; color reduction 95.39%; 28.85%; 88.79%; and 80.02%; decreased in turbidity 99.45%; 99.80%; 99.32%; and 99.10%; decreased Fe concentration 96.60%; 98.99; 96.20%; and 96.99%; and decreased concentration of Mn 99.59%; 99.75%; 99.72%; and 99.75%. Processing with the electrocoagulation method with the addition of 0.5 g alum resulted in a decrease in pH of -29.62%; -26.29%; 13.33; and 15.37%; decrease in TDS of 24.92%; 24.23%; 21.356%; and 16.59%; decreased in watercolor 86.09%; 74.27%; 91.24; and 70.02%; decreased in turbidity value 99.44%; 99.31%; 99.54%; and 98.96%; decreased Fe concentration 97.98%; 96.48%; 97.11; and 98.22%, and a decrease in Mn concentration of 99.75%; 99.55%; 99.75%; and 99.75%.