%0 Journal Article %T Investigation of the effect of current density and PH on oil and grease removal from leather industry wastewaters by electrocoagulation method %A , Z.B.R. %A , F.E.T. %A , S.K. %A , Å.Ä. %J Sigma Journal of Engineering and Natural Sciences %D 2022 %V 40 %P 705-714 %R 10.14744/sigma.2022.00086