Preparation of hydrophilic PVDF/PPTA blend membranes by in situ polycondensation and its application in the treatment of landfill leachate

- High modulus PPTA molecules were introduced into PVDF membrane matrix through in situ polycondensation.
- Membrane surface hydrophilicity and mechanical strength were improved.
- An enhanced antifouling property was obtained when blend membrane was applied in the MBR in the treatment of landfill leachate.
- Blend membrane also showed a relatively high removal rate of chemical oxygen demand (COD) and chrom.