Parameter Before electrocoagulation After electrocoagulation Turbidity, NTU 245.4 22.12 pH 7.27 7.74 Temp, °C 14.7 16 COD, mg/l 26.1 14.9 TDS, mg/l 1410 1387 Dissolved Al, mg/l 0.084 3.37

Table 2: Characteristics of wastewater influent before and after electrocoagulation.