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.