Contaminant Removal from Drilling Wastewater by Electrocoagulation Method

Abstract

In this study, it is aimed to treat the wastewater from drilling operations during the creation of a natural gas storage area by electrocoagulation (EC) method. Boron and sulfate parameters in the wastewater were tried to be eliminated with the help of aluminum electrodes. During the removal of boron and sulfate pollutants, optimization studies were carried out on process time, pH, and current criteria. Boron (B) and sulfate (SO4) concentrations of wastewater generated during drilling were measured as 1.18 mg/L and 3348 mg/L, respectively. The samples taken after the purification work were placed in the measuring tapes and kept on hold for 24 hours. After the settling time, samples taken from the upper part were analyzed. During boron and sulfate removal, 16 mA/cm2 current, 30 min contact time, approximately 61% and 36% efficiency were obtained at 7 pH values.