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Fouling of UF membranes by humic acid particles was studied. Six types of UF membranes namely PAN 20 kDa (Rhone-Poulenc), PAN 100 kDa (Osmonics), PES 150 kDa (Microdyn-Nadir) and PS 10, 50 and 100 kDa (Permionics) were tested. Analysis of the results showed that the resistance due to the adsorption of small particles on the inner pore surfaces is much greater than that occurs due to cake layer build-up...
Municipal wastewater from the secondary treatment stage was treated using various types of membranes such as regular filter paper, microfilter (MF) and UF membranes of molecular weight cut off (MWCO) of 10, 50 and 100 kDa. The membrane performance was assessed by measuring the absorbance, the BOD 5 and the COD of the filtrate. The results indicated that most of the suspended solids are removed...
The effect of water film cooling of the glass cover on the efficiency of a single-basin still has been investigated numerically. Proper use of the film-cooling parameters may increase the still efficiency by up to 20%. On the other hand, a poor combination of these parameters leads to a significant reduction in efficiency. The presence of the cooling film neutralizes the effect of wind speed on...
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