Characterization of nanofiltration membrane based on dyes removal application

Abstract

Dyes effluents from textile industries are discharged without proper treatment and causes extensive environmental pollution. Various physico-chemical processes such as coagulation, flotation and chemical oxidation are conventional treatment processes for textile effluent but these treatment processes are ineffective for dye removal. Nanofiltration (NF) membrane becomes an attractive alternative to the conventional separation processes in the treatment of wastewater because of its high removal efficiencies for dyes. Hence the objective of this study is to investigate the effect of shear rates toward the membrane permeability and separation of charge solute using theoretical model, membrane structure and membrane surface charge. The membranes permeability and performance were determined based on the pure water flux, sodium chloride permeation test and dyes.