Porosity

Changes in morphology and transport parameters for a composite lignosulfonate–polyamide/polysulfone membrane associated with temperature effects were studied. Pore size, pore density and porosity dependence with temperature (25 ≤ t (ºC) ≤ 93) was determined analyzing SEM micrographs, while diffusion

The present investigation describes about the development of a cost effective system for real time monitoring of porosity of ion track etched membranes. The system uses a complementary metal oxide semiconductor (CMOS) image sensor to capture the image of the membranes from the optical microscope’s p

The experimental or theoretical method that can visualize or quantify the architecture of bio-cake formed on the surface of membrane is of great interest in understanding biofouling mechanisms, also controlling biofouling in a membrane bioreactor (MBR). This paper summarizes the methods for determin

Bilge waters with different oil-emulsion droplet sizes can be treated successfully using ultrafiltration processes with ceramic membranes. The structure of these membranes has been designed to obtain high permeate fluxes and increase the efficiency of the process. Membranes with very high porosity (

A theoretical model to predict the porosity and specific resistance of cake layer was developed for better understanding a coagulation-microfiltration system for drinking water production. The model was based on fractal theory and incorporated intra-floc and inter-floc porosities as well as cake col

Unstirred dead-end ultrafiltration of a silica suspension was studied using a fully retentive membrane. A constant pressure filtration approach was used to analyze steady-state flux data. The effects of operating conditions such as applied pressure and bulk concentration on specific resistance, thic