...Jun Yin; Nicole Coutris; Yong Huang Axially aligned grooves can be formed on the hollow fiber membrane (HFM) inner surface under some controlled fabrication conditions during a typical immersion precipitation-based phase inversion fabrication process. Such grooved HFMs are finding promising medical...

... adjustable pin-elements with hemispherical tops and a square section of 43.3 × 43.3 mm 2 create a dimpled surface that is evened out using an elastic interpolating layer. Castings with concrete and plaster are made on an elastic membrane that is sucked toward the pins using a vacuum. The shape of the cast...

... of microfiltration is membrane fouling, which is the blocking of membrane pores causing reduced flux. In this paper a fluid dynamic model of partial and complete blocking in sintered alumina membranes is developed that includes hydrodynamic, electrostatic, and Brownian forces. Model simulations are employed to study...

...John E. Wentz; Shiv G. Kapoor; Richard E. DeVor; N. Rajagopalan The recycling of semisynthetic metalworking fluids (MWFs) using alumina membranes is significantly impacted by aggregated MWF microemulsions that cause partial and complete blocking of membrane pores. In this paper, computational fluid...

...John E. Wentz; Shiv G. Kapoor; Richard E. DeVor; N. Rajagopalan In this paper, the fouling of sintered α -alumina membranes by an uncontaminated semisynthetic metalworking fluid (MWF) is addressed. Experimental evidence of the form of flux reduction curves, scanning electron microscope images...

.... For the transport of unused semi-synthetic MWF through microfiltration membranes ranging in pore size from 0.2 to 5.0 micrometers, Environmental Scanning Electron Microscopy (ESEM) and Confocal Scanning Laser Microscopy (CSLM) are used to identify three interdependent and sequential mechanisms of flux decline: pore...

... and environmental pollution associated with metalworking fluids (MWFs) by enabling recycling and microbial removal. This paper investigates chemical characteristics of MWFs that can lead to flux decline during microfiltration using aluminum oxide membranes by studying the family of polyoxyalkylene diblock...

...Steven J. Skerlos, Graduate Research Assistant,; N. Rajagopalan, Senior Research Engineer,; Richard E. DeVor, Professor and Fellow ASME; Shiv G. Kapoor, Professor and Fellow ASME,; V. Don Angspatt, Director of Research and Development, Membrane Filtration (MF) technology can remove microbes...

... decline during microfiltration of the synthetic MWF described in Part 1 of this paper. An analysis of flux data obtained during the experimental investigation suggests that adsorptive interactions occur at the membrane surface. Field Emission Environmental Scanning Electron Microscopy (FE-ESEM) images...