Removal of Solids from Palm Oil Mill Effluent and Paint Wastewater Using Electrocoagulation Technique

Table 2

Characterization result of PW before electrocoagulation and after electrocoagulation at optimum conditions of 3 Amps, 60min, pH of 2, and 60°C.

Parameter	Before electrocoagulation	After electrocoagulation
pH	10.1	7.4
Total solids (mg/l)	40,058	11
TSS (m)	3,821	3.9
TDS (mg/l)	36,179	6.1
Turbidity (NTU)	788	49
BOD (mg/l)	1,866	3.7
COD (mg/l)	3,137	242
Odour	Positive	Positive
Conductivity (μs/cm)	1,769	1,003
Chloride (mg/l)	386	242.4
Sulphate (mg/l)	760	248
Lead (mg/l)	0.039	0.012