In this study, the municipal wastewater treated
by biological methods was used for further treatment by
nanofiltration method for wastewater reuse. For this purpose, different nanofiltration (NF) membranes,
such as CK, NF-90, and NF-270 were employed. The quality analysis of product water was carried out using
various analytical techniques. The results revealed that the NF-90 membrane can produce the best water
quality compared to other two membranes. The CK membrane showed also a good rejection property after
NF-90 membrane but its big inconvenience is that it gave a lower water flux. Despite the good water flux
by NF-270, the permeate quality obtained with this membrane was not as good as obtained with the
NF-90 and CK membranes.