Observational study of operating conditions on fouling behavior for polyether sulfone (PES) membrane
Paper ID : 1409-MST2015-FULL
hatef mirani *1, Nader Shafaei2, Majid Peyravi3, Mohsen Jahanshahi4, Mohammad Torkamanzadeh3
1nanotechnology research institute - babol university of technology
2Membrane Research Group, Nanobiotechnology Institute, Babol University of Technology, Babol, Iran
3Membrane Research Group, Nanotechnology Institute, Babol University of Technology, Babol, Iran
4Babol University of Technology
This paper is focused on the fouling behavior of the ultrafiltration membrane for landfill leachate treatment. Natural organic matter fouling is considered as a critical factor controlling the membrane performance. In this regard, the PES nanoporous membrane was fabricated by phase inversion method. Membrane surface roughness and topography were analyzed and calculated by Atomic Force Microscopy (AFM). In order to investigate the effects of operating conditions on fouling phenomenon, landfilled leachate treatment was done at different transmembrane pressure and feed concentration. At high concentration of landfill leachate, the effect of operating pressure can be negligible. The maximum amount of R_FR was 96.1 % for raw landfill leachate. Flux decline data were also obtained for the filtration of landfill leachate. The rates of flux decline were drastically dropped to about 46-48% of the initial values in the first 30 minutes of experiment at all the examined pressures. The initial fouling due to pore blockage is related to the feed concentration at constant pressure; so that by diluting the feed concentration, the effect of pore blocking was increased.
Fouling behavior, Leachate treatment, Nanoporous Membrane, Operating Conditions
Status : Conditional Accept (Oral Presentation)