Improved fouling reduction of PES hollow fiber membranes by incorporation with non-ionic surfactant

a:4:{i:0;s:591:"This paper reported the modification of poly (ether sulfone) (PES) hollow fiber membrane structure by blending non-ionic surfactant tetronic 1307 in polymer solution. PES hollow-fiber membranes were prepared via non-solvent induced phase separation (NIPS) process by a batch-extruder The effect of the addition of the surfactant tetronic 1307 on the performance of the final PES hollow-fiber membrane was investigated The hollow fiber was extruded from the spinneret and wound on a take-up winder after it entered the coagulation batch to induce phase separation and solidify) the membrane..";i:1;s:454:"The obtained membrane were characterized for several membrane performance such as membrane morphology by scanning electron microscopy (SEM), membrane hydrophilicity by water contact angle measurement, membrane surface roughness by atomic force microscopy (AFM). Fouling resistance of Polyethersulfone (PES) hollow fiber membrane was observed, by using humic acid (HA) as a model of water contamination through the membrane during ultrafiltration process.";i:2;s:433:"Experimental results showed that the addition of tetronic 1307 was effective to enhance the fouling resistance during ultrafiltration. The hydrophilicity of the membrane surface was also improved due to the high retention of tetronic 1307 in the membrane. The permeability decline of PES blend membrane with tetronic 1307 in the humic acid filtration was lower than that of original PES membrane due to its more hydrophilic property.";i:3;s:406:"The existence of tetronic 1307 on the surface of PES hollow fiber membrane was clarified by ATR-FTIR analysis. The appearance of new peak on the spectra of modified PES membrane corresponding to the stretching vibration of C-H of surfactant tetronic 1307. Thus, this tetronic 1307 exist on the surface of membrane can improve the hydrophilicity of PES membrane confirmed by water contact angle measurement.";}