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A self-made positively charged nanofi ltration(NF)membrane was used to treat textile dye effluent to generate water for reuse,and the factors affecting nanofi ltration process such as operating pressure,feed flow and membrane cleaning were investigated.With an applied pressure of 1.0 MPa and a feed flow of 40 L/h,this NF membrane has a removal of 93.3% for CODcr and a reduction of approximately 51.0% in TDS,salinity and conductivity achieving the chroma removal of 100%.The permeate obtained through this membrane is suitable for recycling.Moreover,the membrane could be reused after being cleaned with 1% NaOH solution.
A self-made positively charged nanofi ltration (NF) membrane was used to treat textile dye effluent to generate water for reuse, and the factors affecting nanofi ltration process such as operating pressure, feed flow and membrane cleaning were investigated .With an applied pressure of 1.0 MPa and a feed flow of 40 L / h, this NF membrane has a removal of 93.3% for CODcr and a reduction of 51.0% in TDS, salinity and conductivity achieving the chroma removal of 100%. is suitable for recycling. Moreover, the membrane could be reused after being cleaned with 1% NaOH solution.