Latest Breaking News On - Fouling - Page 1 : vimarsana.com
Scaling has been a major technical challenge in the membrane distillation (MD) process, hindering the broader application of MD processes. Despite the increasing number of studies on MD scaling, there are limited prediction tools to describe the scaling process and help make informed decisions about the experimental conditions to prevent scaling and its irreversible damage. In this paper, a semi-analytical model was developed based on the classical nucleation theory and crystal growth to model the membrane area reduction caused by the deposition of inorganic salt crystals on the membrane surface, which is equivalent to the decrease in permeate flux resulting from scaling. The model was developed using calcium sulphate, a model scalant. The model was validated and verified with available literature data, and it has been proved that the model has the capability to produce reasonable predictions on the onset of flux decline and the declining rate with respect to the experimental data with the coefficient of determination (R2) ranging from 0.74 to 0.96. The sensitivity analysis was applied on the model, which revealed that flux decline would happen earlier in the case of higher feed temperature, higher feed velocity, and higher initial feed concentration.
Calcium-sulfateFoulingMembrane-distillationNucleationScalingabout mudslides and early walls of water rushing down for as i said this ultimately does track further to the north. we are going to be looking at significant rainfall can we get a portions of eastern oregon up into idaho. again it runs over to the northern rockies its way to squeeze out a little bit more the moisture. a lot lot of folks are going to get in on the action here but southern california right now, although with your monday it willbe tracking this across the northwest. jon: an awful lot of rain to be fouling on some areas that just do not get that kind of water. adam klotz, thank you. southern california it might not have seen the worst in tropical storm hilary yet. let's go just west of los angeles is where fox correspondent jeff jonathan hunt is a weathering the storm in santa monica. what's happening there? >> just a few minutes ago we felt that earthquake you were talking about. it was about 20 minutes ago i would say. it was centered some 60 miles north of us near the town of
LotWaterNorthWayPortionsFolksMoistureMudslidesRainfallTrackIdahoEastern-oregon