“…Several reports are available for the treatment of leather plant effluent using membrane-based processes [3,5,6]. Various flux decline mechanisms are proposed in the literature, e.g., osmotic pressure governed flux decline [13,14], gel or cake layer controlled flux decline [15,16], various steps for blocking the membrane pores, like, complete pore blocking, standard pore blocking, intermediate pore blocking, etc. [17,18].…”