Research Papers by V. Chen

Direct observation (DO) technique allowed the visualisation of fouling deposition and removal in real time and in a non-invasive manner. The DO setup was relatively simple and featured a crossflow hollow fibre membrane module, a microscope and a video camera. Transmembrane pressure (TMP) and fouling

The results show that both surfactant and enzyme are more efficient for cleaning membrane fouled with protein mixture and whey. 0.6 0.4 0.2 0.8 0.6 0.4 0.2 (a) Flux recovery Resistance removal Flux recovery 0.8 HCl, 0.1 M NaOH, 0.1 M SLS, 0.75 wt% TAZ, 1 wt% HCl, 0.05 M NaOH, 0.1 M SDS, 1 wt% (b) Fi

Using alginate as a model extracellular polymeric substance, a two-stage TMP profile, with a slow rise followed by a rapid rise, similar to that typically observed with membrane bioreactor effluents was observed during long term filtration. The alginate transmission profile supported the concept of

Extracellular polymeric substances (EPS) are viewed as major fouling components during filtration of biological feeds in industry. However, very few studies investigated the fouling mechanisms of polysaccharides, one major group of macromolecules in EPS. In this work, dead end unstirred filtration o