Removal of pathogenic microorganisms as viruses during drinking water production was evaluated by ultrafiltration. Two enteric (ADV 41 and CV-B5) were compared to the MS2 bacteriophage, largely used in literature membrane producers virus surrogate. The effect feed concentration on ultrafiltration efficiency has been assessed. For three viruses, low retentions about 1 log observed at lowest conc...

Ultrafiltration alone can remove only a portion of the effluent organic matter (EfOM) from biologically treated sewage effluent (BTSE). Use of pretreatment not only improves the EfOM removal but also reduces the membrane fouling. In this research, NTR 7410 ultrafiltration membrane was employed to remove EfOM from BTSE. Different pretreatments namely FeCl(3) flocculation and powder activated car...

Using a special double-layer membrane to avoid interaction among flow fields generated by different pores, we have, for the first time, observed the predicted discontinuous first-order transition in ultrafiltration of flexible linear polymer chains. Namely, the chain could pass through a pore much smaller than its unperturbed radius only when the flow rate is higher than a certain value. When o...

Polyvinyledenefluoride–polystyrene (PVDF/PS) blend ultrafiltration membranes were prepared using phase inversion technique. Casting solutions were prepared with different compositions of polyvinylidene fluoride (PVDF) and polystyrene (PS) both in the presence and absence of the additive, polyvinylpyrolidone (PVP) using dimethylacetamide as solvent. The effects of compositions of PS and concentr...

With the explosion of proteomics and protein engineering, modern medicine and life science has taken a strong foothold in bench-scale laboratories, both academic and industrial. A vital component of benchscale development of protein-based technologies is purification. Engineered proteins often undergo a stage of the purification process termed ultrafiltration separation. This involves the separ...