Author/Authors :
Sekman، E نويسنده Yildiz Technical University, Environmental Engineering Department, 34220 Esenler, Istanbul, Turkey , , Top، S نويسنده Yildiz Technical University, Environmental Engineering Department, 34220 Esenler, Istanbul, Turkey , , Uslu، E نويسنده Yildiz Technical University, Environmental Engineering Department, 34220 Esenler, Istanbul, Turkey , , Varank، G نويسنده Yildiz Technical University, Environmental Engineering Department, 34220 Esenler, Istanbul, Turkey , , Bilgili، M.S نويسنده Yildiz Technical University, Environmental Engineering Department, 34220 Esenler, Istanbul, Turkey ,
Abstract :
The present study investigated oil/water demulsification and treatment of oily wastewater
originated from port waste reception facilities by electro coagulation using aluminum electrodes in a batch
reactor. The efficiency of Al electrodes in removing SS, COD, and oil & grease from wastewater with different
current densities and operational times were investigated. The characteristics of the wastewater vary in a wide
range e.g. SS 13.3–660 mg/L, COD 240–2783 mg/L, and oil & grease 6.5–736 mg/L. The results of the study
indicated that the SS, COD, and oil & grease can be removed effectively by EC process using Al electrodes. The
optimum EC time and current density for SS removal (98.8%) was determined as 5 min and 16 mA/cm2,
respectively. The first 5 min of the EC process give a considerable removal of COD for all current intensities
(61-90%). The optimal current density for COD removal was determined as 12 mA/cm2 with the EC time of
20 min. Results indicated that oil & grease removal reached to a rate higher than 80% after EC time of 10 min
for all current densities. The results demonstrated the applicability of electrocoagulation as a possible and
reliable technique for the treatment of wastewater of port waste reception facilities.
